Roll map generation apparatus and roll map generation method, roll map, and battery manufacturing system and battery manufacturing method using roll map

Abstract

The invention relates to a roll map generation apparatus and a roll map generation method. In addition, the present invention relates to a roll map, and a battery manufacturing system and a battery manufacturing method using the roll map. The roll drawing generation apparatus according to the present invention comprises: an inspection and / or measurement device that acquires inspection and / or measurement data by inspecting and / or measuring an electrode moving between an unwinder and a rewinder; and a roll map generation unit configured to generate a roll map on which the roll map is generated by displaying at least a portion of the inspection and / or measurement data on a plane simulating the moving electrode.

Description

Technical Field

[0001] The present disclosure relates to a roll map generating device and a roll map generating method.

[0002] Additionally, the present disclosure relates to roll sheets and systems and methods for manufacturing batteries using the roll sheets.

[0003] This application claims priority to and the benefit of Korean Patent Application No. 10-2022-0116302, filed on September 15, 2022, Korean Patent Application No. 10-2023-0013307, filed on January 31, 2023, Korean Patent Application No. 10-2023-0074503, filed on June 9, 2023, and Korean Patent Application No. 10-2023-0074504, filed on June 9, 2023, the disclosures of which are hereby incorporated by reference in their entirety. Background Art

[0004] With the development of mobile device technology and the increasing demand for mobile devices, the demand for secondary batteries is also rapidly increasing. Among secondary batteries, lithium secondary batteries have the characteristics of high energy density, low operating voltage, and excellent storage and lifespan. Therefore, they are widely used as energy sources for various electronic products and various mobile devices.

[0005] The so-called electrode manufacturing process (i.e., the process of manufacturing lithium secondary battery electrodes) includes: a coating process of coating active materials and a certain insulating material on the surface of a metal electrode plate serving as a current collector to form a positive electrode and a negative electrode; a rolling process of rolling the coated electrode; and a slitting process of cutting the rolled electrode according to size.

[0006] The electrodes produced in the electrode manufacturing process are slotted to form electrode tabs. The secondary battery is then assembled through the following processes: a separator is interposed between the positive and negative electrodes to form an electrode assembly. The electrode assembly is then stacked or folded, packaged in a pouch or can, and then filled with electrolyte. The assembled secondary battery then undergoes an activation process, which imparts battery characteristics through charging and discharging, ultimately becoming the final secondary battery.

[0007] When an inspection device detects foreign matter mixed in the active material layer or a poor coating portion during the electrode manufacturing process, according to the prior art, the electrode is marked or the operator attaches a defect label to the electrode so that the defect can be removed in the corresponding coating process or subsequent process (see patent document 1).

[0008] However, when marking directly on the electrode, it is difficult to mark on the coating portion to which the electrode is applied, so there is no choice but to mark on the uncoated portion. Therefore, for example, when an appearance defect occurs in the coating portion, it is difficult to show the exact location of the fault or defect by marking on the uncoated portion rather than on the coating portion with the actual defect. In addition, Patent Document 1 adopts a physical marking process that uses information related to quality, defects, etc. to mark directly on the electrode. Therefore, once a secondary battery is manufactured with an electrode, even when defects occur in a subsequent process due to defects caused in the electrode manufacturing process, it is difficult to find the interval in the electrode manufacturing process that actually caused the defect. That is, after the physically marked electrode is used for assembly or disappears, it is difficult to analyze the quality correlation between the electrode manufacturing process and the subsequent process.

[0009] Meanwhile, a technology has been proposed for marking whether defects exist with ink directly on corresponding secondary batteries in a secondary battery assembly line after the electrode manufacturing process is completed, so that the working history can be checked in units of secondary batteries (see Patent Document 2).

[0010] Since the above-mentioned prior art involves marking after secondary battery assembly, it is possible to examine the secondary battery assembly process and subsequent history. However, historical information about defects in the electrode manufacturing process as a previous process cannot be examined. That is, Patent Document 2 relates to a technology for physically marking secondary batteries during or after secondary battery assembly, and therefore has nothing to do with the product history of quality and defects in the electrode manufacturing process. Therefore, it is also impossible to analyze the quality correlation between the electrode manufacturing process and the assembly process.

[0011] Furthermore, none of the aforementioned patent documents provide non-defect information, such as information about the electrode manufacturing process, such as loading, size, and width. Thus, for example, a defect may not exist during electrode manufacturing, but a defect, such as a fire, may occur during subsequent processes or during the use of the secondary battery. In such cases, it would be necessary to trace the battery's product history back to the electrode manufacturing process to identify the cause of the defect, but this is impossible using the techniques proposed in the aforementioned patent documents.

[0012] Therefore, in order to find the causes of defects that subsequently occur in subsequent processes or secondary batteries, it is necessary to develop a technology for displaying or storing historical information about quality or defects in the electrode manufacturing process, which allows quality correlation analysis associated with subsequent processes.

[0013] [Prior art literature]

[0014] (Patent Document)

[0015] (Patent Document 1) Japanese Patent Application Laid-Open No. 2015-2149 (January 5, 2015)

[0016] (Patent Document 2) Korean Patent No. 10-1731983 (May 2, 2017) Summary of the Invention

[0017] Technical issues

[0018] The present disclosure is directed to providing apparatus and methods for generating roll maps capable of identifying data regarding quality and / or defects in an electrode manufacturing process.

[0019] Furthermore, the present disclosure relates to providing a roll map made by an apparatus and a roll map generation method, as well as a system and method for manufacturing batteries using the roll map.

[0020] The objects of the embodiments disclosed in this document are not limited to the above objects, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

[0021] Technical Solution

[0022] The roll map generating apparatus according to the present disclosure includes: an inspection and / or measuring device configured to inspect and / or measure an electrode moving between an unwinder and a rewinder and to acquire inspection and / or measurement data; and a roll map generating unit configured to generate a roll map, the planar shape of the simulated moving electrode of the roll map being marked with at least some of the inspection and / or measurement data.

[0023] The roll map generating apparatus may further include a position measuring device configured to acquire a coordinate value of a position of the electrode according to a rotation amount of the unwinder and / or the rewinder.

[0024] The position measuring device may be a rotary encoder configured to measure the position of the electrode according to an amount of rotation of a motor configured to drive the unwinder or the rewinder.

[0025] The inspection and / or measurement data may be one of the following:

[0026] 1) data regarding at least one of the size and width of the electrode;

[0027] 2) data on the mismatch between the coated and uncoated portions of the electrode;

[0028] 3) data regarding the slurry loading on the electrode;

[0029] 4) data regarding the appearance of the electrode;

[0030] 5) data on the locations of disconnected electrodes or connection locations between electrodes;

[0031] 6) data on the location of the sample inspection unit;

[0032] 7) data on the location of electrode discard intervals;

[0033] 8) Data on insulation quality or defects in the insulation material coating process performed after electrode slurry coating;

[0034] 9) Other defect data;

[0035] 10) data regarding reference points marked at predetermined intervals on the electrodes; and

[0036] 11) Data on the thickness of the electrode after rolling.

[0037] The inspection and / or measurement device may be at least one of the following:

[0038] a reference point measuring device configured to measure reference points marked at predetermined intervals on the electrode;

[0039] a joint measurement device configured to detect a joint attached to the electrode;

[0040] a loading measurement device configured to measure a slurry loading on the electrode;

[0041] size and width measuring devices;

[0042] Electrode appearance inspection device; and

[0043] Electrode thickness measuring device.

[0044] The inspection and / or measurement device may be connected to the position measurement device to jointly acquire coordinate values ​​of the electrode portion for which the inspection and / or measurement data has been acquired, and transmit the inspection and / or measurement data and the coordinate values ​​to the volume map generation unit.

[0045] The roll map generating device may further include a controller configured to control the movement of the electrode between the unwinder and the rewinder, wherein the controller is configured to: match the inspection and / or measurement data with the coordinate values ​​of the electrode portion from which the inspection and / or measurement data has been acquired; and transmit the coordinate values ​​and the inspection and / or measurement data matched with the coordinate values ​​to the roll map generating unit.

[0046] The coordinate value of the electrode portion for which the inspection and / or measurement data has been acquired may be a value obtained by adding a coordinate value determined according to the amount of rotation of the winding machine at a point in time when the corresponding inspection and / or measurement data is acquired to an offset distance, the offset distance being the distance between the corresponding inspection and / or measuring device and the winding machine.

[0047] The roll map generation unit may mark the coordinate values ​​and at least some of the inspection and / or measurement data on the roll map.

[0048] The roll map generating unit may mark the reference points marked on the electrodes at predetermined intervals at positions on the roll map corresponding to the coordinate values ​​of the corresponding reference points.

[0049] The roll map generation unit may be a manufacturing execution system (MES) or a statistical process control (SPC) unit.

[0050] The roll map generation unit may include a visualization device configured to define a visualization area of ​​the plane forming the roll map, and to display the coordinate values ​​and visually display the inspection and / or measurement data on the defined area.

[0051] The volume map generating unit may further include a central processing unit configured to compare the inspection and / or measurement data with normal data and visually display data determined to be abnormal on the visualization device.

[0052] The roll map generating apparatus may further comprise a manual input device configured to receive inspection and / or measurement data of the electrode that has been manually inspected and / or measured, wherein the manual input device may transmit the inspection and / or measurement data of the electrode that has been manually inspected and / or measured directly to the roll map generating unit, or transmit the data to the roll map generating unit via a controller configured to control the movement of the electrode between the unwinder and the rewinder.

[0053] The roll map generating apparatus may further include a display unit connected to the roll map generating unit to display the roll map.

[0054] The coordinate value acquired by the position measuring device may be a value of the position of the electrode in the longitudinal direction.

[0055] The roll map generating unit may mark the coordinate values ​​of the position of the electrode in the width direction on the roll map. The coordinate values ​​of the position in the width direction may be acquired by the inspection and / or measurement device.

[0056] The scroll map generating unit may generate at least one of: an absolute coordinate scroll map showing coordinate values ​​of the electrode removal portion and the remaining electrode portion after removal; and a relative coordinate scroll map showing only the coordinate values ​​of the remaining electrode portion.

[0057] The roll map generation unit may generate at least one of a roll map with respect to a top surface of the electrode and a roll map with respect to a back surface of the electrode.

[0058] According to another aspect of the present disclosure, a method for generating a scroll map includes:

[0059] inspecting and / or measuring an electrode moving between an unwinder and a rewinder, acquiring inspection and / or measurement data, and acquiring coordinate values ​​of a position of the moving electrode; and

[0060] A volume map is generated by marking at least some of the inspection and / or measurement data and the coordinate values ​​on a planar shape simulating a moving electrode.

[0061] Before acquiring the inspection and / or measurement data, an electrode roll information registration operation may be performed to register the specifications of the electrode roll mounted on the unwinder.

[0062] Information about at least some of the specifications of the electrode roll may be displayed together on the roll map.

[0063] The inspection and / or measurement data may be automatically acquired by a predetermined inspection and / or measurement device or manually acquired by an operator.

[0064] The method may further include displaying reference points marked on the electrodes at predetermined intervals at positions on the volume map corresponding to coordinate values ​​of corresponding reference points.

[0065] The method may further include comparing the inspection and / or measurement data with normal data, and marking data determined to be abnormal on the volume map to be visually distinguished from other data.

[0066] The method may further include comparing data on an input state of an input material input to the electrode manufacturing process with the coil. Figure 1 Mark it.

[0067] The method may further include marking detailed data of one or more pieces of the inspection and / or measurement data or process data marked for each sub-process in manufacturing the electrode in association with specific coordinate values ​​or specific data display portions of the roll map.

[0068] A roll map according to the present disclosure comprises a roll map bar displayed in a bar shape simulating an electrode moving between an unwinder and a rewinder, wherein at least some of the inspection and / or measurement data acquired by inspecting and / or measuring the moving electrode are displayed at predetermined positions on the roll map bar, the predetermined positions corresponding to positions of the electrode at which the inspection and / or measurement data have been acquired.

[0069] Coordinate values ​​indicating positions of the electrodes in the longitudinal direction may be displayed in the longitudinal direction of the scroll bar.

[0070] Information about at least one of specifications, manufacturing processes, and manufacturing equipment of the electrode may be displayed together with the roll bar.

[0071] The inspection and / or measurement data may be one or more of the following:

[0072] 1) data regarding at least one of the size and width of the electrode;

[0073] 2) data on the mismatch between the coated and uncoated portions of the electrode;

[0074] 3) data regarding the slurry loading on the electrode;

[0075] 4) data regarding the appearance of the electrode;

[0076] 5) data on the locations of disconnected electrodes or connection locations between electrodes;

[0077] 6) data on the location of the sample inspection unit;

[0078] 7) data on the location of electrode discard intervals;

[0079] 8) Data on insulation quality or defects in the insulation material coating process performed after electrode slurry coating;

[0080] 9) Other defect data;

[0081] 10) data regarding reference points marked at predetermined intervals on the electrodes; and

[0082] 11) Data on the thickness of the electrode after rolling.

[0083] The scroll bar may be provided for each electrode channel and / or each of the top and back surfaces of the electrode, and at least some of the inspection and / or measurement data may be displayed on each scroll bar.

[0084] Data regarding the input status of input materials input to the electrode manufacturing process may be displayed along with the roll bar graph.

[0085] Detailed data of one or more pieces of the inspection and / or measurement data may be displayed in association with specific coordinate values ​​or specific data display portions of the roll graph strips; or

[0086] Process data for each detailed process mark when manufacturing the electrode.

[0087] When a specific range of the volume bar is designated, the inspection and / or measurement data or process data of each detailed process in manufacturing the electrode may be visualized in association with the specific range.

[0088] When a specific position is designated on the volume bar, an appearance image of the specific position may be visualized.

[0089] Reference points marked on the electrodes at predetermined intervals may be simulated to display the reference points at positions on the scroll bar corresponding to coordinate values ​​of the corresponding reference points.

[0090] When the position of the reference point on the electrode changes due to the coated electrode being rolled and stretched, a reference point simulating the changed reference point may be displayed at a coordinate position corresponding to the changed position on the roll bar.

[0091] The volume map may be stored in a computer-readable recording medium.

[0092] According to one embodiment of the present disclosure, an electrode missing amount measuring device includes: an electrode, which is configured to move between an unwinder and a rewinder, and is marked with multiple reference points at predetermined intervals between a starting part of the electrode and an ending part of the electrode; a reference point measuring device, which is configured to measure the reference points marked on the electrode; a position measuring device, which is configured to derive a coordinate value of the electrode according to the rotation amount of the unwinder or the rewinder, and cooperate with the reference point measuring device to derive a coordinate value of a corresponding reference point when the reference point measuring device measures the reference point; and a calculator, which is configured to calculate the missing amount of the electrode by comparing the derived reference point coordinate value and the set reference point coordinate value when the reference interval between the starting part of the electrode and the ending part of the electrode changes from the set reference point interval due to the missing of a part of the electrode.

[0093] According to another aspect of the present disclosure, a method of measuring a missing amount of an electrode includes: marking a plurality of reference points at predetermined intervals between a start portion and an end portion of an electrode moving between an unwinder and a rewinder;

[0094] measuring the reference point on the electrode by a reference point measuring device and deriving the coordinate value of the reference point; and

[0095] When the reference interval between the start portion of the electrode and the end portion of the electrode changes from the set reference point interval due to the absence of a portion of the electrode, the missing amount of the electrode is calculated by comparing the derived reference point coordinate value and the set reference point coordinate value.

[0096] According to another aspect of the present disclosure, a roll map generating device includes: a reference point measuring device, which is configured to check an electrode moving between an unwinder and a rewinder, and detect a reference point marked on the electrode; a position measuring device, which is configured to derive a coordinate value of the electrode according to the rotation amount of the unwinder or the rewinder, and derive the coordinate value of the reference point; and a roll map generating unit, which is configured to generate a roll map bar simulating a moving electrode, and generate a roll map, which displays the missing amount of the electrode calculated by comparing the derived reference point coordinate value on the roll map bar and the set reference point coordinate value.

[0097] According to another aspect of the present disclosure, a roll map correction system is provided. The roll map correction system includes: a roll map generating unit configured to generate a roll map of a first process, the roll map being represented as a plane shape on which an electrode moving between a first unwinder and a first rewinder and subjected to the first process is simulated, and the roll map displays inspection and / or measurement data of the electrode and coordinate values ​​indicating a position of the electrode in the first process; and

[0098] A roll pattern corrector configured to convert the coordinate values ​​of the roll pattern of the first process in reverse order so that the coordinate values ​​of the start portion and the end portion of the roll pattern of the first process are reversed, and to generate a roll pattern of the second process when a second process is performed on the electrode moving between the second unwinder and the second rewinder.

[0099] When a portion of the end portion of the electrode is removed after the first process is completed and before the second process begins,

[0100] The roll diagram corrector can remove the coordinate values ​​corresponding to the removed portion of the end portion of the electrode from the roll diagram of the first process, convert the coordinate values ​​of the roll diagram of the first process in reverse order so that the coordinate values ​​of the starting portion of the roll diagram of the first process are reversed with the coordinate values ​​of the ending portion from which the portion of the end portion of the electrode has been removed, and generate a roll diagram of the second process.

[0101] According to still another aspect of the present disclosure, an apparatus for removing defects of an electrode in a second process, the electrode being moved between a first unwinder and a first rewinder and being subjected to a first process, the apparatus comprising: a defect removal port positioned between a second unwinder and a second rewinder, and removing defective sections of the electrode occurring in the first process in the defect removal port; and

[0102] a second process controller configured to control movement of the electrode between the second unwinder and the second rewinder,

[0103] The second process controller calculates the time point when the electrode with the defective interval reaches the defect removal port from the second unwinder based on the coordinate information about the defective interval displayed on the roll diagram of the first process, and stops the movement of the electrode to the second process when the defective interval reaches the defect removal port to remove the defective interval of the electrode at the defect removal port.

[0104] The apparatus for removing electrode defects may further comprise,

[0105] a roll image corrector configured to correct the roll image of the first process by converting coordinate values ​​of the roll image in reverse order so that coordinates of a start portion and an end portion of the roll image of the first process are reversed,

[0106] The second process controller may stop the movement of the electrode based on a coordinate value of the defective section displayed on the corrected roll map.

[0107] When a portion of the end portion of the electrode is removed after the first process is completed and before the second process begins,

[0108] The roll pattern corrector may remove coordinate values ​​corresponding to the removed portion of the end portion of the electrode from the roll pattern of the first process, and correct the roll pattern by converting the coordinate values ​​of the roll pattern of the first process in the reverse order so that the coordinate values ​​of the start portion of the roll pattern of the first process and the coordinate values ​​of the end portion from which the portion of the end portion of the electrode has been removed are reversed, and

[0109] The second process controller may stop the movement of the electrode based on the coordinate value of the defective region displayed on the corrected roll map.

[0110] The second process controller may control the electrode to slowly move in the second process during a predetermined period of time between a predetermined time point and an arrival time point before the defect interval reaches the defect removal port.

[0111] The device for removing defects of an electrode may further include a warning unit configured to output an alarm for at least one of the following situations: when the defect interval reaches the defect removal port; when the movement of the electrode to the second process stops; and after a predetermined time has passed since the movement of the electrode to the second process stopped.

[0112] The first process may be an electrode coating process of applying an electrode active material to a current collector to form a coated electrode, and the second process may be a rolling process of pressing the coated electrode with a press roller.

[0113] According to another embodiment of the present disclosure, a system for generating a roll map of a series of roll-to-roll processes is provided.

[0114] The series of roll-to-roll processes sequentially and repeatedly perform a process in which an electrode released from an unwinder is moved and wound on a rewinder, and the system includes:

[0115] a roll map generating device configured to generate a roll map for each process, the roll map being defined as a coordinate plane having two coordinate axes including a longitudinal axis and a width axis of the electrode, and displaying a position of the electrode in each process as a coordinate value of the coordinate plane; and

[0116] A roll diagram matching unit is configured to match the coordinate values ​​of the roll diagram in each process with the coordinate values ​​of the roll diagram of the final process, so that each actual electrode represented by the roll diagram of each process before the final process in the series of roll-to-roll processes is matched with the actual electrode represented by the roll diagram of the final process.

[0117] The roll map generating apparatus may further include: a position measuring device configured to obtain a coordinate value of a position of the electrode in the longitudinal direction according to an amount of rotation of one of the unwinder and the rewinder in each process;

[0118] an inspection and / or measurement device configured to detect the electrode moving between the unwinder and the rewinder and to acquire inspection and / or measurement data; and

[0119] A roll map generating unit is configured to generate the roll map by defining a visualization area of ​​the coordinate plane forming the roll map and marking at least some of the inspection and / or measurement data and the coordinate values ​​of the electrode in the longitudinal direction on the visualization area.

[0120] The inspection and / or measurement data may be one or more of the following:

[0121] 1) data regarding at least one of the size and width of the electrode;

[0122] 2) data on the mismatch between the coated and uncoated portions of the electrode;

[0123] 3) data regarding the slurry loading on the electrode;

[0124] 4) data regarding the appearance of the electrode;

[0125] 5) Data on the location of disconnected electrodes, connection locations between electrodes, or connectors on electrodes;

[0126] 6) data on the location of the sample inspection unit;

[0127] 7) data on the location of electrode discard intervals;

[0128] 8) Data on insulation quality or defects in the insulation material coating process performed after electrode slurry coating;

[0129] 9) Other defect data;

[0130] 10) data regarding reference points marked at predetermined intervals on the electrodes; and

[0131] 11) data on the thickness of the electrode after rolling, and

[0132] Coordinate values ​​of the electrode portion for which corresponding inspection and / or measurement data have been acquired are displayed on the graph for each process together with the inspection and / or measurement data.

[0133] The coordinate value of the electrode portion in the longitudinal direction for which the inspection and / or measurement data has been acquired may be a value obtained by adding a coordinate value determined according to the amount of rotation of the winding machine at the time point when the corresponding inspection and / or measurement data is detected to an offset distance, wherein the offset distance is the distance between the corresponding inspection and / or measuring device and the winding machine.

[0134] The coordinate value in the width direction of the electrode portion for which the inspection and / or measurement data has been acquired may be acquired by the inspection and / or measurement device.

[0135] The volume map generating device may further include:

[0136] a controller configured to control the movement of electrodes between the unwinder and the rewinder,

[0137] The controller may match the inspection and / or measurement data with the coordinate values ​​of the electrode portion from which the inspection and / or measurement data has been acquired, and transmit the matching result to the volume map generating unit.

[0138] The volume map generation unit can generate:

[0139] an absolute coordinate volume graph that displays, together with the coordinate plane, coordinate values ​​of electrode portions removed in each process and between the processes, and coordinate values ​​of remaining electrode portions excluding the removed electrode portions; and

[0140] A relative coordinate scroll graph displays only coordinate values ​​of the remaining electrode portions excluding the removed electrode portion on the coordinate plane.

[0141] The volume map matching unit can,

[0142] The coordinate values ​​of the relative coordinate roll map of each process before the final process are matched with the coordinate values ​​of the relative coordinate roll map of the final process.

[0143] The volume map generating unit may,

[0144] Each of a wrap map about a top surface of the electrode and a wrap map about a back surface of the electrode is generated.

[0145] When the final process is a slotting process,

[0146] The roll map generating apparatus may generate a roll map having a single plane showing only coordinate values ​​on the coordinate plane regardless of the top surface and the back surface of the electrode.

[0147] The volume map matching unit can be configured as follows:

[0148] removing, from the roll map in each process, all coordinate intervals corresponding to actual electrode portions that are cumulatively removed in the series of roll-to-roll processes; and

[0149] The length of the reel in each process is matched with the length of the reel of the final process by correcting the coordinate values ​​of the remaining coordinate intervals after the removal to match the coordinate values ​​of the reel of the final process.

[0150] When the coordinate starting direction of the reel diagram of a specific process before the final process is opposite to the coordinate starting direction of the reel diagram of the final process depending on the electrode winding direction in the rewinding machine in the previous process and the electrode unwinding direction in the unwinding machine in the subsequent process,

[0151] The reel map matching unit may match a starting direction of coordinates of the reel map of the specific process with a starting direction of coordinates of the reel map of the final process.

[0152] When the top surface of the electrode in the previous process is reversed to the back surface of the electrode in the subsequent process depending on the electrode winding direction in the rewinding machine in the previous process and the electrode unwinding direction in the unwinding machine in the subsequent process,

[0153] Information about the electrode surface inversion can be stored in the volume matching unit,

[0154] And the roll pattern matching unit can accordingly match the roll pattern of the top surface of the electrode in the previous process with the roll pattern of the back surface of the electrode in the subsequent process according to the information.

[0155] The volume map matching unit can

[0156] The reel diagram of the final process and a reel diagram in each process that matches the reel diagram of the final process are arranged side by side, and the arranged reel diagrams are displayed as superimposed reel diagrams.

[0157] The roll map generating apparatus may further include a display unit configured to display the overlay roll map.

[0158] The present disclosure provides a superimposed reel diagram in which reel diagrams in a series of reel-to-reel processes in which the reel-to-reel process is sequentially and repeatedly performed on an electrode moving between an unwinder and a rewinder are arranged side by side.

[0159] In the superimposed roll diagram, the roll diagram in each process before the final process in the roll diagram can be a roll diagram that undergoes roll diagram matching, so that the coordinate values ​​of the roll diagram in each process match the coordinate values ​​of the roll diagram of the final process, so that the actual electrode represented by the roll diagram of the final process matches each actual electrode represented by the roll diagram of each process before the final process.

[0160] The present disclosure provides a computer-readable recording medium including the overlay volume map.

[0161] A battery manufacturing system according to the present disclosure includes: a slotting controller configured to obtain electrode coordinate information of an electrode line moving in a slotting process and a cell ID of a unit electrode;

[0162] a calculator configured to calculate a coordinate value of the cell ID based on spacing information and a cell ID, wherein the spacing information is a width of a slotted unit electrode and the coordinate value of the cell ID is a position of a specific unit electrode moved during the slotting process;

[0163] a roll map generating unit configured to generate a roll map based on the electrode coordinate information transmitted from the slotting controller, the roll map displaying coordinate values ​​of positions of the electrodes to identify length changes of the electrodes in an electrode manufacturing process prior to the slotting process; and

[0164] A mapping unit is configured to derive a position of the electrode in the electrode manufacturing process from which the specific unit electrode originates by comparing the coordinate values ​​of the roll map with the coordinate values ​​of the cell ID.

[0165] According to another aspect of the present disclosure, a battery manufacturing system includes: a plurality of boxes, which are connected between a mixer and a coater using pipelines to sequentially move electrode slurry supplied from the mixer toward the coater; and a controller, which is configured to, after assigning batch number information of the electrode slurry supplied to each box to each box, identify the batch number information of the electrode slurry to record the batch number information of the electrode slurry, and refer to the history of the batch number information recorded for each box to detect the batch number information of the electrode slurry of the final supply box that supplies the electrode slurry to the coater.

[0166] The present disclosure provides a battery manufacturing method, comprising: identifying and recording batch number information of an electrode slurry supplied from a mixer;

[0167] When the electrode slurry is sequentially moved along a plurality of tanks, after allocating the lot number information of the electrode slurry supplied to each tank to each tank, the lot number information of the electrode slurry is recorded; and

[0168] The lot number information of the electrode slurry of the final supply tank that supplies the electrode slurry to the coater is detected with reference to the history of the lot number information recorded for each tank.

[0169] A battery manufacturing system according to one embodiment disclosed in this document includes: a programmable logic controller (PLC), the PLC configured to receive specification information of one or more electrodes from a first sensor, receive position coordinates of the one or more electrodes from a second sensor, and generate identification information of each of the one or more electrodes based on the specification information and the position coordinates; an inspection device, the inspection device configured to inspect the one or more electrodes and generate inspection information; and a controller, the controller configured to match and manage the identification information and the inspection information of the one or more electrodes.

[0170] The PLC may receive a number count value of the one or more electrodes according to a length of one or more electrode contacts from the first sensor, and the number count value of the electrodes may include a binary coded decimal (BCD) code.

[0171] The PLC may receive coordinates of the winding pattern of the one or more electrodes from an encoder mounted on a rewinding machine disposed in a notching apparatus configured to notch the one or more electrodes.

[0172] The PLC may generate an ID for each of the one or more electrodes based on specification information of one or more positive terminals and coordinates of the roll diagram.

[0173] The inspection device may receive the specification information of the one or more electrodes from the first sensor, and add the specification information to the inspection information of the one or more electrodes.

[0174] The controller may match and manage the IDs of the one or more electrodes and the inspection information of the one or more electrodes.

[0175] The controller may match the IDs of the one or more electrodes with the inspection information of the one or more electrodes to generate integrated inspection information of the one or more electrodes, and transmit the integrated inspection information to a server.

[0176] A battery manufacturing method according to one embodiment disclosed in this document includes: receiving specification information of one or more electrodes from a first sensor; receiving position coordinates of the one or more electrodes from a second sensor; generating identification information of each of the one or more electrodes based on the specification information and the position coordinates; inspecting the one or more electrodes and generating inspection information; and matching and managing the identification information and the inspection information of the one or more electrodes.

[0177] Receiving the specification information of the one or more electrodes from the first sensor may include receiving a number count value of the one or more electrodes according to the length of one or more electrode contacts from the first sensor, and the number count value of the electrodes includes a binary coded decimal (BCD) code.

[0178] Receiving the position coordinates of the one or more electrodes from the second sensor may include receiving coordinates of a roll pattern of the one or more electrodes from an encoder mounted on a rewinder disposed in a notching apparatus configured to notch the one or more electrodes.

[0179] Generating the identification information of each of the one or more electrodes based on the specification information and the position coordinates may include generating an ID of each of the one or more electrodes based on specification information of one or more positive terminals and the coordinates of the roll diagram.

[0180] Examining the one or more electrodes to generate the examination information may include receiving the specification information of the one or more electrodes from the first sensor and adding the specification information to the examination information of the one or more electrodes.

[0181] The matching and managing the identification information and the inspection information of the one or more electrodes may include matching and managing the IDs of the one or more electrodes and the inspection information of the one or more electrodes.

[0182] The matching and managing of the identification information and the inspection information of the one or more electrodes may include matching the ID of the one or more electrodes with the inspection information of the one or more electrodes to generate integrated inspection information of the one or more electrodes, and transmitting the integrated inspection information to a server.

[0183] A battery manufacturing method according to one embodiment of the present disclosure may include: generating a virtual ID corresponding to a battery cell; switching the virtual ID as the process performed on the battery cell progresses; matching the switched virtual ID with process data generated for the battery cell and storing the matching result; extracting the cell ID of the battery cell; and matching the process data matching the virtual ID corresponding to the battery cell ID with the battery ID, and transmitting the matching result to an upper-level control system.

[0184] The method may further include, after generating the virtual ID, matching process operation information indicating a process being performed on the battery cell with the virtual ID.

[0185] The switching of the virtual ID may include changing the process operation information matched with the virtual ID when changing a process being performed on the battery cell.

[0186] The process data may include operating results and / or test results of the process performed on the battery cell.

[0187] Extracting the cell ID of the battery cell may include reading the cell ID in the form of a barcode attached to the battery cell.

[0188] The process data matched with the battery cell ID may be process data collected in time series during each process performed on the battery cell.

[0189] The processes for the battery cells may include a groove and dry (NDD) process and / or a lamination process.

[0190] According to one embodiment of the present disclosure, a battery manufacturing system includes: a virtual ID generator, which is configured to generate a virtual ID corresponding to a battery cell; a virtual ID manager, which is configured to switch the virtual ID as the process being performed on the battery cell progresses; a process data collector, which is configured to match the switched virtual ID with the process data generated for the battery cell and store the matching result; and a main controller, which is configured to match the process data matched with the virtual ID corresponding to the cell ID extracted from the battery cell with the cell ID to generate process information.

[0191] After generating the virtual ID, the virtual ID manager may match process operation information indicating a process being performed on the battery cell with the virtual ID.

[0192] According to an embodiment, the virtual ID manager,

[0193] When the process performed on the battery cell is changed, the process operation information matched with the virtual ID may be changed.

[0194] The process data may include operating results and / or test results of the process performed on the battery cell.

[0195] The process data matched with the battery cell ID may be process data collected in time series in each process performed on the battery cell.

[0196] The process for the battery cell may include an NDD process and / or a lamination process.

[0197] The battery manufacturing system may further include a communicator configured to transmit the process information to an upper control system.

[0198] According to yet another aspect of the present disclosure, a battery manufacturing system includes: a first roll map generating unit configured to generate a first roll map for at least one process, the first roll map including coordinate value data indicating a position of an electrode and first data matching the coordinate value data among process data generated as a process performed on the electrode progresses; and

[0199] The second roll map generating unit is configured to generate a second roll map for at least one process, wherein the second roll map includes the coordinate data and first data of the first roll map, and further includes second data associated with the first data.

[0200] The process data may include at least one of the following:

[0201] Equipment data acquired by each process equipment;

[0202] Process-related inspection and / or measurement data obtained during each process; and

[0203] Time series data acquired during each process.

[0204] The first data and the second data may match the same coordinate value data.

[0205] The second data may include one of the following data:

[0206] 1) Data with a capacity larger than the first data;

[0207] 2) data processed from the first data; and

[0208] 3) Data of a type different from the first data.

[0209] The system for manufacturing the battery may include a server unit configured to store the second data and transmit the second data to the second volume map generating unit.

[0210] The system can match and manage at least one of data about specifications of the input material used to manufacture the electrode, process data for the mixing process of the input material, and path data about the moving path of the mixed input material to the electrode coater, as well as coordinate value data of the first roll map and / or the second roll map and data matching the coordinate value data.

[0211] The battery manufacturing system according to the present disclosure may further include a roll pattern matching unit configured to perform at least one of the following 1) and 2):

[0212] 1) matching coordinate values ​​of a first reel diagram in a previous process with coordinate values ​​of a first reel diagram in a subsequent process so that the actual electrodes represented by the first reel diagram in the previous process correspond to the actual electrodes represented by the first reel diagram in the subsequent process; and

[0213] 2) Matching the coordinate values ​​of the first roll diagram in each process with the coordinate values ​​of the first roll diagram in the final process, so that the actual electrode represented by the first roll diagram in the final process among multiple processes corresponds to the actual electrode represented by the first roll diagram in each process.

[0214] The battery manufacturing system according to the present disclosure may further include a roll pattern matching unit configured to perform at least one of the following 1) and 2):

[0215] 1) matching coordinate values ​​of a second reel diagram in a previous process with coordinate values ​​of a second reel diagram in a subsequent process so that the actual electrodes represented by the second reel diagram in the previous process correspond to the actual electrodes represented by the second reel diagram in the subsequent process; and

[0216] 2) Matching the coordinate values ​​of the second roll diagram in each process with the coordinate values ​​of the second roll diagram in the final process, so that the actual electrode represented by the second roll diagram in the final process among multiple processes corresponds to the actual electrode represented by the second roll diagram in each process.

[0217] According to another aspect of the present disclosure, a battery manufacturing method includes:

[0218] generating a first reel map for at least one process, the first reel map including coordinate value data indicating a position of an electrode and first data matching the coordinate value data among process data generated as a process performed on the electrode progresses;

[0219] storing second data associated with the first data among the process data; and

[0220] A second roll map for at least one process is generated by matching the second data with the coordinate value data, the second roll map including the second data in addition to the coordinate value data and the first data of the first roll map.

[0221] According to yet another aspect of the present disclosure, a battery manufacturing system includes:

[0222] a roll map generating unit configured to generate, for each process, a roll map including data indicating coordinate values ​​of positions of electrodes and process data generated and matched with the coordinate values ​​as processes performed on the electrodes progress; and

[0223] A roll map matching unit configured to perform at least one of the following 1) and 2):

[0224] 1) matching the coordinate values ​​of a reel diagram in a previous process with the coordinate values ​​of a reel diagram in a subsequent process so that the actual electrodes represented by the reel diagram in the previous process correspond to the actual electrodes represented by the reel diagram in the subsequent process; and

[0225] 2) Matching the coordinate values ​​of the roll diagram in each process with the coordinate values ​​of the roll diagram in the final process, so that the actual electrode represented by the roll diagram in the final process among multiple processes corresponds to the actual electrode represented by the roll diagram in each previous process before the final process.

[0226] The volume map generation unit may generate at least one of the following:

[0227] an absolute coordinate roll map indicating, on the roll map, coordinate values ​​of electrode portions removed in each process, between processes, or after the final process, and coordinate values ​​of remaining electrode portions excluding the removed electrode portions; and

[0228] A relative coordinate scroll that indicates, on the scroll, only the coordinate values ​​of the remaining electrode portion excluding the removed electrode portion.

[0229] The volume map matching unit may perform at least one of the following 1) and 2):

[0230] 1) matching the coordinate values ​​of the relative coordinate roll map in the previous process with the coordinate values ​​of the relative coordinate roll map in the subsequent process; and

[0231] 2) Matching the coordinate values ​​of the relative coordinate roll map in each process before the final process among the plurality of processes with the coordinate values ​​of the relative coordinate roll map in the final process.

[0232] The volume map matching unit may perform at least one of the following a), b), and c):

[0233] a) Reel length matching operation, used to match the reel length in the previous process with the reel length in the subsequent process;

[0234] b) a coordinate axis matching operation for matching the reel coordinate starting direction in the previous process with the reel coordinate starting direction in the subsequent process; and

[0235] c) An electrode surface matching operation for matching a roll pattern of an electrode surface in a subsequent process with a roll pattern of an electrode surface in a previous process that corresponds to the electrode surface in the subsequent process.

[0236] The volume map matching unit may:

[0237] The roll drawings and

[0238] The reel images in the previous process that match the reel images in the subsequent process are arranged side by side, and the arranged reel images are displayed as superimposed reel images.

[0239] The volume map matching unit may perform at least one of the following a)', b)' and c)':

[0240] a) 'Roll length matching operation, used to match the roll length in each process with the roll length in the final process;

[0241] b) a coordinate axis matching operation for matching the roll coordinate starting direction in each process with the roll coordinate starting direction in the subsequent process; and

[0242] c) an electrode surface matching operation for matching the roll pattern of the electrode surface in the final process with the roll pattern of the electrode surface in each process corresponding to the electrode surface in the final process.

[0243] The volume map matching unit can

[0244] The reel map in the final process and the reel map in each process that matches the reel map in the final process are arranged side by side, and the arranged reel maps are displayed as superimposed reel maps.

[0245] The volume map generating unit may include:

[0246] a first roll map including data indicating coordinate values ​​of positions of the electrodes and first data matching the coordinate value data among process data generated as a process performed on the electrodes progresses, and

[0247] The volume map matching unit may:

[0248] Matching the coordinate values ​​of the first roll image in the previous process with the first roll image in the subsequent process; or

[0249] The coordinate values ​​of the first roll map in each of the plurality of processes are matched with the coordinate values ​​of the first roll map in the final process.

[0250] The volume map generating unit may include

[0251] a second roll map generating unit configured to generate a second roll map including the data of the first roll map and further including second data associated with the first data and matching the coordinate value among the process data, and

[0252] The roll image matching unit may: match the coordinate values ​​of the second roll image in the previous process with the coordinate values ​​of the second roll image in the subsequent process; or

[0253] The coordinate values ​​of the second roll map in each of the plurality of processes are matched with the coordinate values ​​of the second roll map in the final process.

[0254] The battery manufacturing system can,

[0255] Matching and managing subsequent process data and previous process data, wherein the subsequent process data matches the coordinate values ​​of the roll image in the subsequent process, and the previous process data matches the coordinate values ​​of the roll image in the subsequent process, or

[0256] Final process data that matches the coordinate values ​​of the reel map in the final process and process data in each process that matches the coordinate values ​​in each process that match the coordinate values ​​of the reel map in the final process are matched.

[0257] The battery manufacturing system according to the present disclosure can match and manage at least one of data about the specifications of the input materials used to manufacture the electrodes, process data for the mixing process of the input materials, and path data about the moving path of the mixed input materials to the electrode coater, as well as the respective matching coordinate values ​​of the superimposed roll diagram and the process data matching the coordinate values ​​in each process.

[0258] According to another aspect of the present disclosure, a battery manufacturing method includes:

[0259] generating a roll map including coordinate value data indicating positions of electrodes and process data generated and matched with the coordinate value data as a plurality of processes progress; and

[0260] Perform at least one of the following 1) and 2):

[0261] 1) matching the coordinate values ​​of a reel diagram in a previous process with the coordinate values ​​of a reel diagram in a subsequent process so that the actual electrodes represented by the reel diagram in the previous process correspond to the actual electrodes represented by the reel diagram in the subsequent process; and

[0262] 2) Matching the coordinate values ​​of the reel diagram in each process with the coordinate values ​​of the reel diagram in the final process so that the actual electrodes represented by the reel diagram of the final process correspond to the actual electrodes represented by the reel diagram of each process before the final process.

[0263] According to yet another aspect of the present disclosure, a computer-readable recording medium is provided, in which at least one of the first volume map and / or the second volume map is stored.

[0264] According to yet another aspect of the present disclosure, a computer-readable recording medium is provided, comprising the volume map and / or the overlaid volume map.

[0265] According to yet another aspect of the present disclosure, a battery manufacturing system includes:

[0266] a coordinate value data server in which coordinate values ​​indicating positions of electrodes moved in a process performed on the electrodes are stored;

[0267] an identification mark providing unit configured to provide identification marks on the electrodes at predetermined intervals; and

[0268] A data management server is configured to match and manage the identification mark and the coordinate value of the coordinate value data server corresponding to the identification mark.

[0269] The coordinate values ​​may be coordinate values ​​of a winding diagram displayed on a winding diagram simulating the electrode moving between an unwinder and a rewinder.

[0270] The coordinate value data server may match and store the roll coordinate value in a previous process with the roll coordinate value in a subsequent process, or the coordinate value data server may match and store the roll coordinate value in each of a plurality of processes with the roll coordinate value in a final process.

[0271] The coordinate value data server may store process data matching the roll image coordinate values.

[0272] The coordinate value data server may store one or more of the following:

[0273] a) a first roll map including coordinate data indicating a position of the electrode and first data matching a value of the coordinate data among process data generated as a process performed on the electrode progresses;

[0274] b) a second scroll, the second scroll comprising the coordinate value data and the first data of the first scroll, and further comprising second data associated with the first data;

[0275] c) a superimposed reel image in which reel images in a previous process and a subsequent process are arranged side by side, with reel image coordinate values ​​matching each other; and

[0276] d) Superimposed roll images in which the roll images in each process are arranged side by side, with the roll image coordinate values ​​in each process matching the roll image coordinate values ​​in the final process.

[0277] The coordinate value data server may store at least one of the following:

[0278] A roll coordinate value indicating the position of the electrode moved in the process of providing the identification mark; a roll coordinate value indicating the position of the electrode moved in one or more previous processes before the process of providing the identification mark; and process data in each process that matches the roll coordinate value.

[0279] The identification mark may be provided to the electrode joint portion after a notching process for forming a joint is performed with respect to the electrode.

[0280] The identification mark may be an electrode ID actually marked on the electrode or a virtual electrode ID virtually provided at predetermined intervals between the electrodes.

[0281] The identification mark providing unit may be an ID marker configured to mark the electrode ID on the electrode at predetermined intervals.

[0282] When the electrode ID is marked or the marked ID is identified, a first position coordinate value corresponding to the electrode ID may be acquired by means of a coordinate value received by a position measurement sensor.

[0283] The data management server may match and manage the first position coordinate value corresponding to the electrode ID and the coordinate value data corresponding to the first position coordinate value data of the coordinate value data server and / or process data matching the coordinate value.

[0284] The identification mark providing unit can be an equipment control device, which is configured to receive at least one specification information from a first sensor, receive position coordinate values ​​of one or more electrodes from a second sensor serving as a position measurement sensor, and generate a virtual electrode ID for each of the one or more electrodes based on the specification information and the position coordinate values.

[0285] The device control device may receive a count value of the number of the one or more electrodes having at least one electrode contact of different lengths from the first sensor, and

[0286] The count value of the number of electrodes may include a binary coded decimal (BCD) code.

[0287] The data management server may match and manage the position coordinate value corresponding to the virtual electrode ID and the coordinate value of the coordinate value data server corresponding to the first position coordinate value and / or process data matching the coordinate value.

[0288] The data management server can match and manage subsequent process data of at least one process generated as a subsequent process performed on the electrode including the identification mark progresses and matching the identification mark, as well as the coordinate values ​​of the coordinate value data server and / or process data matching the coordinate values.

[0289] The system may further include a subsequent process data matching unit configured to match the identification mark with the at least one subsequent process data.

[0290] The subsequent process data matching unit may provide an upper layer identification mark matched with the electrode identification mark to an upper layer component including the electrode provided with the identification mark.

[0291] The upper component may be at least one of an electrode assembly including the electrode provided with the identification mark, a battery cell semi-finished product including the electrode assembly, a battery cell including the electrode assembly, a battery cell stack including the battery cell or a battery module including the battery cell stack, and a battery pack including the battery cell stack or the battery module.

[0292] Based on the coordinate values ​​and identification marks,

[0293] The process data matched with the coordinate values ​​and the subsequent process data matched with the identification marks can be matched and managed.

[0294] A battery manufacturing method according to another aspect of the present disclosure includes:

[0295] acquiring data indicating coordinate values ​​of a position of an electrode moved in a process;

[0296] providing identification marks on the electrodes at predetermined intervals; and

[0297] The identification marks and the coordinate values ​​corresponding to the identification marks are matched and managed.

[0298] Based on the coordinate values ​​and the identification mark,

[0299] The process data matched with the coordinate value and the subsequent process data matched with the identification mark are matched and managed.

[0300] The present disclosure may also provide an electrode including the electrode identification mark.

[0301] The present disclosure may also provide an upper component including the electrode.

[0302] The upper layer assembly may further include an upper layer identification mark that matches the electrode identification mark.

[0303] Specifically, the electrode may include an electrode identification mark matched with at least one of a coordinate value of a roll diagram indicating a position of the electrode and process data matched with the coordinate value of the roll diagram.

[0304] By matching the electrode identification mark and the subsequent process data, the process data matched with the coordinate values ​​of the reel diagram and the subsequent process data may be matched with each other based on the electrode identification mark and the coordinate values ​​of the reel diagram.

[0305] Beneficial effects

[0306] According to the present disclosure, since data on quality or defects can be displayed on a roll graph bar showing a simulated electrode in a roll-to-roll state, data on quality or defects of an electrode manufacturing process can be intuitively and easily recognized at a glance.

[0307] Furthermore, according to the present disclosure, since data regarding quality or defects is displayed on the roll strip without being directly marked on the electrode or the secondary battery, data regarding quality or defects can be accurately displayed on the coated portion as well as the uncoated portion.

[0308] Furthermore, since the data is not marked directly on the electrode or battery but displayed on the roll diagram, even when the electrode is assembled or a battery is manufactured using the electrode in a subsequent process, the cause of a subsequent failure or defect can be easily found from the roll diagram data of the corresponding electrode, as long as the batch number of the battery or electrode is known, thereby performing inter-process quality correlation analysis with high accuracy.

[0309] In the electrode manufacturing process according to the present disclosure, the reference points can be used to accurately identify the amount and position of electrode missing. In addition, since the amount of electrode missing is automatically and accurately measured without relying on the naked eye or the operator's senses, the reliability of the missing amount data can be increased and such data information can be effectively used in subsequent processes.

[0310] Furthermore, according to the present disclosure, by displaying a reference point on a roll graph simulating an electrode and also displaying information on the missing amount of the electrode on the roll graph, data on quality or defects can be intuitively and easily viewed with respect to the reference point.

[0311] Furthermore, in each detailed process of the electrode manufacturing process, since a roll map can be displayed with reference points for quality, defect control, and subsequent process reference, processing, defect removal, etc. can be accurately performed in subsequent processes.

[0312] According to one embodiment of the present disclosure, a roll map capable of intuitively identifying events regarding quality or defects of each detailed process and data regarding the events in an electrode manufacturing process in which an electrode moves in a roll-to-roll state may be provided.

[0313] Furthermore, by correcting the coordinates of the reel map of the previous process, the reel map of the previous process can be used in a subsequent process without any error.

[0314] Furthermore, defects occurring in previous processes can be reliably and easily removed using roll map information without having to be omitted in subsequent processes.

[0315] According to one embodiment of the present disclosure, by matching the coordinate values ​​of the roll map of each process with the coordinate values ​​of the final process in a series of roll-to-roll processes, data on the quality or defects of the electrode remaining in the final process can be easily identified.

[0316] Furthermore, the inspection history of the electrode manufacturing process can be easily identified using the matching roll diagram.

[0317] Furthermore, according to one embodiment of the present disclosure, even when the start and end portions of an electrode roll are reversed or the top and back surfaces of an electrode roll are reversed while undergoing a series of roll-to-roll processes, by generating an overlaid roll map through roll map matching with predetermined logic, electrode quality problems can be quickly and intuitively tracked when they occur.

[0318] According to the present disclosure, in the electrode manufacturing process before the slotting process, the position of the electrode from which the unit electrode of the slotting process originates can be traced.

[0319] In addition, since it is possible to identify which electrode a unit electrode manufactured in a groove process in an electrode manufacturing process originates from, analysis of defect causes or quality tracking of semi-finished or finished battery cells in subsequent processes can be performed in unit cells up to the electrode manufacturing process.

[0320] According to one embodiment of the present disclosure, the batch number information of the electrode slurry can be identified at the supply box stage, thereby tracing the quality of the electrode slurry produced from the corresponding supply box.

[0321] Furthermore, when there is a defect in the electrode or a battery manufactured using the electrode fails, the defect or cause of the failure can be easily identified.

[0322] According to a battery manufacturing system and an operating method thereof according to one embodiment disclosed herein, a virtual ID can be generated based on specification information about a positive electrode, thereby ensuring traceability of data about the positive electrode.

[0323] According to the battery manufacturing method and battery manufacturing system disclosed in this document, the reliability of battery quality analysis can be improved through accurate matching between process data and batteries.

[0324] According to the present disclosure, by effectively distributing the data required for generating a roll map, the data load applied to the roll map generation unit can be reduced. Therefore, the data processing speed of the roll map generation system can be improved, and the data on the roll map can be managed more efficiently.

[0325] Furthermore, by matching the coordinate values ​​of the roll diagrams produced in each process, it is possible to compare variations in the actual electrode when multiple processes are performed based on the same standard. Using the matched roll diagrams, changes in the inspection history or equipment data during the electrode manufacturing process can be easily identified.

[0326] According to the present disclosure, the quality of an electrode and an upper component including the electrode can be easily managed based on the identification mark and the coordinate value of the electrode after assembly and during the electrode manufacturing process and assembly process.

[0327] Furthermore, by linking identification marks to coordinate values, it is possible to match and manage roll image data and process data for subsequent processes. This makes it possible to track the quality of all processes, from electrode manufacturing to the final process.

[0328] Furthermore, various effects that can be directly or indirectly recognized through this document can be provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0329] Figure 1 is a schematic diagram showing changes in risk range according to the quality correlation analysis between the electrode manufacturing process and the finished product;

[0330] Figure 2 is a schematic diagram of a scroll map generating device according to one embodiment of the present disclosure;

[0331] Figure 3 is a schematic diagram illustrating a principle of acquiring inspection and / or measurement data and coordinate values ​​of the corresponding data by an inspection and / or measurement device;

[0332] Figure 4 is a schematic diagram of a data visualization device provided in a roll map generating device;

[0333] Figure 5 is a schematic diagram showing an embodiment of a roll map drawn by a roll map generating device according to the present disclosure;

[0334] Figure 6 is a flow chart illustrating one embodiment of a volume graph generation method according to the present disclosure;

[0335] Figure 7 is a schematic diagram of a roll diagram according to one embodiment of the present disclosure;

[0336] Figure 8 is a schematic diagram of a roll diagram according to another embodiment of the present disclosure;

[0337] Figure 9 is a schematic diagram showing that when an electrode is missing in the absence of a reference point, the position coordinates are distorted;

[0338] Figure 10 is a view illustrating the concept of the present disclosure (ie, preventing distortion of position coordinates by introducing a reference point);

[0339] Figure 11 is a schematic diagram of an electrode missing amount measuring device according to one embodiment of the present disclosure;

[0340] Figure 12 is a schematic diagram illustrating an embodiment of electrode missing amount measurement according to the present disclosure;

[0341] Figure 13 is a schematic diagram illustrating another embodiment of measuring the amount of electrode missing according to the present disclosure;

[0342] Figure 14 is a schematic diagram illustrating another embodiment of measuring the amount of electrode missing according to the present disclosure;

[0343] Figure 15 is a schematic diagram showing the change of the reference point due to the rolling process;

[0344] Figure 16 is a schematic diagram of an electrode missing amount measuring device according to another embodiment of the present disclosure;

[0345] Figure 17 is a schematic diagram illustrating an embodiment of a roll diagram of an electrode manufacturing process according to the present disclosure;

[0346] Figure 18 It is a schematic diagram of a roll map generating device;

[0347] Figure 19 is a schematic diagram illustrating a curl correction system according to another embodiment of the present disclosure;

[0348] Figure 20 is a schematic diagram illustrating an embodiment of changing the coordinates of a roll chart by means of a roll chart correction system according to the present disclosure;

[0349] Figure 21 is a schematic diagram illustrating another embodiment of changing the coordinates of a roll chart by means of a roll chart correction system according to the present disclosure;

[0350] Figure 22 is a schematic diagram illustrating removal of defects occurring in an electrode coating process in a rolling process as a subsequent process;

[0351] Figure 23 is a schematic diagram illustrating the concept of an electrode defect removal apparatus according to yet another embodiment of the present disclosure;

[0352] Figure 24 is a schematic diagram illustrating an electrode defect removal apparatus according to the present disclosure;

[0353] Figure 25 is a schematic diagram showing a state of an electrode according to an electrode manufacturing process;

[0354] Figure 26 is a schematic diagram of a scroll map generation system according to one embodiment of the present disclosure;

[0355] Figure 27 is a schematic diagram illustrating an embodiment of an apparatus for generating a roll map in an electrode coating process and a roll map of the electrode coating process;

[0356] Figure 28 is a schematic diagram illustrating a principle of acquiring inspection data and corresponding coordinate values ​​of the inspection data by an inspection and / or measuring device;

[0357] Figure 29 is a schematic diagram illustrating an embodiment of a volume map generating unit;

[0358] Figure 30 is a schematic diagram showing a roll view of the top and back surfaces of an electrode;

[0359] Figure 31 is a schematic diagram illustrating aspects of electrode reversal according to a winding direction in a previous process and an unwinding direction in a subsequent process;

[0360] Figure 32 is a schematic diagram showing coordinate axes of a roll diagram of a previous process and a subsequent process in reverse;

[0361] Figure 33 is a schematic diagram illustrating an embodiment of an apparatus for generating a coil map in a rolling process and a coil map of the rolling process;

[0362] Figure 34 is a schematic diagram showing a coil diagram when the electrode is removed after the rolling process is completed;

[0363] Figure 35 is a schematic diagram illustrating one embodiment of an apparatus for generating a roll map in a slotting process and a roll map of the slotting process;

[0364] Figures 36 to 38 is a schematic diagram illustrating a roll-to-map matching process according to the present disclosure;

[0365] Figures 39 to 41 is a schematic diagram illustrating a series of roll-to-roll processes and corresponding process overlays according to one embodiment;

[0366] Figure 42 and Figure 43 is a schematic diagram illustrating a series of roll-to-roll processes and superimposed roll diagrams in the corresponding processes according to another embodiment;

[0367] Figure 44 is a view showing a roll diagram in an electrode manufacturing process;

[0368] Figure 45 is a block diagram illustrating a battery manufacturing system according to the present disclosure;

[0369] Figure 46 is a schematic diagram for describing a slotting process controlled by a slotting controller in a battery manufacturing system according to the present disclosure;

[0370] Figure 47is a schematic diagram for describing a process of deriving a removal length when an electrode is removed during a slotting process;

[0371] Figure 48 is a schematic diagram illustrating a process for tracking electrode positions in a battery manufacturing system according to one embodiment of the present disclosure;

[0372] Figure 49 is a schematic diagram showing elongation of an electrode in a rolling process after coating the electrode;

[0373] Figure 50 is a schematic diagram illustrating a process for tracking electrode positions in a battery manufacturing system according to another embodiment of the present disclosure;

[0374] Figure 51 is a schematic diagram showing the transfer of slurry between multiple boxes installed between a mixer and an applicator;

[0375] Figure 52 is a schematic diagram illustrating the difference between the prior art and the electrode slurry batch number information tracking and management mechanism disclosed herein;

[0376] Figure 53 is a block diagram illustrating a battery manufacturing system according to one embodiment of the present disclosure;

[0377] Figure 54 is a schematic diagram illustrating a process of dispensing and recording batch number information of an electrode slurry according to the present disclosure;

[0378] Figure 55 is a schematic diagram illustrating a battery manufacturing system according to another embodiment of the present disclosure;

[0379] Figure 56 is a diagram for describing the entirety of a battery processing system according to one embodiment disclosed in this document;

[0380] Figure 57 is a block diagram showing the configuration of a battery manufacturing system according to one embodiment disclosed in this document;

[0381] Figure 58 is a diagram for describing a slotting process according to one embodiment disclosed in this document;

[0382] Figure 59 is a diagram showing coordinates of a roll diagram according to one embodiment disclosed in this document;

[0383] Figure 60 is a diagram showing integrated inspection data according to one embodiment disclosed in this document;

[0384] Figure 61is a flowchart illustrating a method for manufacturing a battery according to one embodiment disclosed in this document;

[0385] Figure 62 is a block diagram showing a hardware configuration of an operation system according to one embodiment disclosed in this document, the operation system being used to implement a battery manufacturing system;

[0386] Figure 63 is a block diagram showing a battery manufacturing system and an upper control system according to one embodiment disclosed in this document;

[0387] Figure 64 It is schematically shown by Figure 63 A view of a process sequence performed by a system for manufacturing a battery;

[0388] Figure 65 is shown for control Figure 63 A block diagram of a configuration of a process controller for a battery manufacturing system;

[0389] Figure 66 is used to describe Figure 63 A view of a method for processing process data collected in a battery manufacturing system;

[0390] Figure 67 is a flowchart illustrating a battery manufacturing method according to one embodiment of the present disclosure;

[0391] Figure 68 is a block diagram showing a hardware configuration of an operation system according to one embodiment disclosed in this document, the operation system being used to perform an operation method of a battery manufacturing system;

[0392] Figure 69 is a configuration diagram of a battery manufacturing system according to one embodiment of the present disclosure;

[0393] Figure 70 is a schematic diagram showing the generation of a first roll diagram in an electrode manufacturing process and a slotting process;

[0394] Figure 71 is a schematic diagram of a visualization device included in a first volume graph generating unit;

[0395] Figure 72 is a data flow diagram of a battery manufacturing system according to one embodiment of the present disclosure;

[0396] Figure 73 is a schematic diagram showing one embodiment of a first roll diagram and a second roll diagram;

[0397] Figure 74 is a schematic diagram showing another embodiment of a first roll diagram and a second roll diagram;

[0398] Figure 75 is a flow chart of a battery manufacturing method according to one embodiment of the present disclosure;

[0399] Figure 76 is a schematic diagram of a volume pattern matching unit included in a battery manufacturing system;

[0400] Figure 77 is a schematic diagram illustrating a roll length and a coordinate axis matching process performed by a roll matching unit;

[0401] Figure 78 is a schematic diagram showing the surface of an electrode reversed between a previous process and a subsequent process;

[0402] Figure 79 is a schematic diagram illustrating one embodiment of a superimposed volume diagram;

[0403] Figure 80 is a flow chart of a battery manufacturing method according to one embodiment of the present disclosure;

[0404] Figure 81 is a schematic diagram illustrating an embodiment of data matching performed by a battery manufacturing system according to the present disclosure;

[0405] Figure 82 is a configuration diagram of a battery manufacturing system according to another embodiment of the present disclosure;

[0406] Figure 83 is a schematic diagram illustrating a process for providing an identification mark on an electrode;

[0407] Figure 84 and Figure 85 is a schematic diagram illustrating a process of providing a virtual identification mark to an electrode;

[0408] Figure 86 is a data flow diagram of a battery manufacturing system according to another embodiment of the present disclosure;

[0409] Figure 87 It is a schematic diagram of the subsequent process data matching unit;

[0410] Figure 88 is a flow chart of a method for manufacturing a battery according to another embodiment of the present disclosure;

[0411] Figure 89 is a schematic diagram illustrating an embodiment of data matching performed by a battery manufacturing system according to the present disclosure;

[0412] Figure 90 is a schematic diagram illustrating an electrode tracking process performed by a battery manufacturing system according to the present disclosure;

[0413] Figure 91 is a schematic diagram of an electrode and an electrode assembly provided with electrode identification marks;

[0414] Figure 92 is a schematic diagram of a folded battery cell and a stacked battery cell provided with electrode identification marks;

[0415] Figure 93 is a schematic diagram of a packaged battery cell provided with electrode identification marks;

[0416] Figure 94 is a schematic diagram of a battery cell provided with electrode identification markings;

[0417] Figure 95 is a schematic diagram of another type of battery cell with electrode identification markings; and

[0418] Figure 96 It is a schematic diagram of battery module and battery pack. DETAILED DESCRIPTION

[0419] Hereinafter, the detailed configuration of the present disclosure will be described in detail with reference to the accompanying drawings and several embodiments. The following embodiments are exemplary, and these embodiments are set forth herein to facilitate understanding of the present disclosure. In addition, the accompanying drawings are not drawn to scale, and the sizes of some components may be exaggerated to facilitate understanding of the present disclosure.

[0420] Since the present disclosure can be modified and has various forms, specific embodiments will be shown in the drawings and described in detail. However, it should be understood that the embodiments are not intended to limit the present disclosure to a specific form, and all changes, equivalents and replacements within the spirit and technical scope of the present disclosure are covered.

[0421] Figure 1 FIG. 1 is a diagram illustrating changes in risk range according to quality correlation analysis between an electrode manufacturing process and a finished product.

[0422] like Figure 1 As shown in (a), a finished product (secondary battery) is manufactured using a product (electrode) manufactured in an electrode manufacturing process. In this case, when a defect occurs in the finished product, it is necessary to identify the manufacturing history in some cases in order to identify which cause caused the defect. However, when there is no information about the manufacturing history of the product in the electrode manufacturing process or the information is insufficient, it is difficult to identify which process product became the corresponding final defective product. Therefore, in order to prevent the same defect from occurring again, it is necessary to include other finished products (i.e., good products) and the corresponding defective products in the risk range of possible defects, and in some cases discard all products within the risk range.

[0423] On the other hand, when there is sufficient information about the manufacturing history of the product in the electrode manufacturing process, it is possible to Figure 1 The information shown in (b) can be used to reduce the risk range and thus reduce the number of good products to be discarded. In particular, since electrodes are manufactured through various processes (such as coating, rolling, and slitting), it may be difficult to specify the cause of defects related to subsequent processes unless the product history information of each process is clearly recorded or stored.

[0424] Therefore, it is necessary to develop a technology that can record information about product quality or defects in the electrode manufacturing process and track and analyze the correlation with the quality of subsequent processes or finished products.

[0425] Furthermore, as mentioned above, due to the physical limitations of the electrode space, there are limitations in directly displaying all defect information for electrodes coated with electrode slurry. Furthermore, in some cases, quality information on defect-free electrodes in various processes may be required to identify the cause of unexpected failures in subsequent processes or in processes using finished secondary batteries.

[0426] Therefore, the inventors developed a roll chart that spatially displays electrodes as strips simulating the electrodes, rather than directly displaying data or information related to quality and defects during the electrode manufacturing process. By spatially displaying various data or information, such a roll chart can be used for quality analysis and control during electrode manufacturing. Furthermore, to track quality, the roll chart overcomes the limitations of existing technologies and can be used for quality correlation analysis between processes.

[0427] Figure 2 is a schematic diagram of a roll map generating device according to one embodiment of the present disclosure, and Figure 3 Schematic diagram showing the principle of acquiring inspection and / or measurement data and coordinate values ​​of the corresponding data by means of an inspection and / or measurement device.

[0428] The roll map generating apparatus 100 according to the present disclosure includes: an inspection and / or measuring device 10 for inspecting and / or measuring an electrode 1 moving between an unwinder UW and a rewinder RW, and acquiring inspection and / or measurement data; and a roll map generating unit 40 for generating a roll map represented in a plane shape, simulating the moving electrode on the roll map, and displaying at least some of the inspection and / or measurement data.

[0429] The inspection and / or measurement device 10 can inspect the electrode 1 moving between the unwinder and the rewinder and acquire inspection and / or measurement data.

[0430] In order to measure the quality or defects of the electrode 1 undergoing each detailed process near the upper and lower parts of the electrode wire moving in a reel-to-reel state, a predetermined inspection and / or measurement device 10 is provided in the electrode manufacturing process.

[0431] The inspection and / or measurement device 10 can inspect and / or measure the electrode 1 and acquire inspection and / or measurement data. The inspection and / or measurement device can be connected to the position measurement device 20 described below via a wired or wireless manner to acquire the coordinate values ​​(coordinate data) of the electrode 1 and the inspection and / or measurement data acquired for the electrode 1. Alternatively, the coordinate values ​​of the electrode transmitted to the controller 30 described below can be matched with the inspection and / or measurement data.

[0432] "Inspection and / or measurement device" refers to any or all of an inspection device, a measuring device, or an inspection and measurement device, depending on the purpose of the measurement. "Inspection and / or measurement data" refers to any or all of inspection data, measurement data, or inspection and measurement data. Consequently, inspection and / or measurement data is any data that can be obtained by inspecting or measuring an electrode. Furthermore, an inspection and / or measurement device is any device used to inspect or measure an electrode in order to obtain specific inspection and / or measurement data.

[0433] The inspection and / or measurement data of the electrode 1 described in the present disclosure may include data about the quality or defects of the electrode 1. For example, when the electrode slurry is coated in the coating process, the measurement data of the slurry loading amount can be obtained by the loading amount measuring device 11. When the loading amount exceeds the set range, it is determined to be a defect, and the defect can be distinguished from other parts and intuitively displayed by the visualization device to be described below. Alternatively, the loading amount can also be divided into a normal range rather than a defect range according to the loading amount, and the loading amount can be intuitively displayed in different colors. In this sense, the inspection and / or measurement data according to the present disclosure are not limited to defects, but include data about quality.

[0434] Furthermore, a size and width measuring device for measuring size and width can be provided. This device can identify sizes and widths outside a set range as defective data, or categorize sizes and widths within a normal range according to their ranges, displaying the categorized sizes and widths in different colors. The size and width measuring device can also capture mismatch data between coated and uncoated portions of an electrode.

[0435] When electrodes are disconnected during processing and then connected using a joint connecting member (joint tape), a joint measuring device for detecting the joint may also be provided.

[0436] Furthermore, there are cases where reference points are marked on the electrode 1 at predetermined intervals and used to calculate the length of a broken electrode, etc. A reference point measuring device 12 for detecting the position of the reference point may also be provided as one of the inspection and / or measurement devices.

[0437] Alternatively, a thickness measuring device (thickness gauge) can also be provided for measuring the thickness of the coated electrode, for example in pre-treatment and post-treatment of the rolling process.

[0438] Furthermore, during the electrode manufacturing process, various inspection and / or measurement devices 10 can be used to obtain inspection and / or measurement data regarding electrode quality or defects. An electrode appearance inspection device 13 can be provided to detect appearance defects in the electrode, such as pinhole defects and line defects. As long as other measurement parameters are available that can be obtained from the electrode 1, other inspection and / or measurement devices 10 capable of detecting other measurement parameters can also be used in the roll image generation apparatus 100 according to the present disclosure.

[0439] Furthermore, each inspection and / or measurement device 10 is not necessarily provided separately, and multiple inspection data or measurement data can be obtained by a single inspection device or measurement device. In this case, the number of required inspection and / or measurement devices 10 can be reduced. Alternatively, multiple inspection and / or measurement devices 10 with the same name can be provided, depending on their purpose. That is, since a color sensor as a joint measurement device inspects the exterior, the color sensor can also be considered an appearance inspection device 13. Furthermore, a visual measurement device can be considered a size and width measurement device because it can measure mismatches, but can also be considered a reference point measurement device because it can also detect reference points with the help of a visual sensor included in the corresponding measurement device.

[0440] In summary, detailed examples of inspection and / or measurement data that may be acquired during the electrode manufacturing process may be provided as follows:

[0441] 1) data regarding at least one of the size and width of the electrode;

[0442] 2) data on the mismatch between the coated and uncoated portions of the electrode;

[0443] 3) data on the slurry loading on the electrode;

[0444] 4) Data on electrode appearance;

[0445] 5) data on the locations of disconnected electrodes or connection locations between electrodes;

[0446] 6) data on the location of the sample inspection unit;

[0447] 7) data on the location of electrode discard intervals;

[0448] 8) Data on insulation quality or defects in the insulation material coating process performed after electrode slurry coating;

[0449] 9) Other defect data;

[0450] 10) data regarding reference points marked at predetermined intervals on the electrodes; and

[0451] 11) Data on electrode thickness after rolling.

[0452] At the same time, in the electrode manufacturing process, the electrode 1 is installed between the unwinder UW and the rewinder RW. After the electrode 1 is unwound from the unwinder UW and completes the predetermined process, the electrode 1 is wound into an electrode roll in the rewinder RW. In addition, the electrode roll that has completed one process (previous process) is reinstalled between the unwinder UW and the rewinder RW in the subsequent process, and the subsequent process is carried out while moving in the roll-to-roll state. That is, in the electrode manufacturing process, the electrode movement process in which the electrode 1 moves in the roll-to-roll state is repeated. Therefore, when the position of the electrode when it moves can be represented by coordinates, the position of the electrode 1 in each process can be specified. In addition, when acquiring data about quality or defects, in the event of an event such as electrode breakage and the electrodes being connected by means of a joint connecting member, historical information about quality, defects and various events of the electrode in the corresponding process can be displayed when the position of the data acquisition unit or the joint is represented as coordinates. Since the electrode 1 moves with the help of the rotation of the unwinder UW and the rewinder RW, the position of the electrode 1 in the longitudinal direction can be specified according to the rotation amount of the unwinder UW and / or the rewinder RW. The roll map generating device according to the present disclosure may further include a position measuring device 20 for obtaining the position of the electrode according to the rotation amount of the unwinder and / or the rewinder as a coordinate value. The position measuring device 20 according to the present disclosure can obtain the position of the electrode 1 in the longitudinal direction as a coordinate value (coordinate data). For example, when the coordinate obtained by the position measuring device 20 is zero, the starting part of the electrode 1 can be specified, and when a coordinate value of 1200 meters is obtained from the electrode 1 having a length of 1200 meters, the ending part of the electrode 1 can be specified.

[0453] The coordinate data of the position of the electrode 1 in the longitudinal direction can be detected by means of rotary encoders 20U and 20R respectively installed on the unwinder UW and the rewinder RW. Generally, the rotary encoders 20U and 20R are installed on the motor drive unit for driving the unwinder UW and the rewinder RW to detect the electrode movement distance based on the number of revolutions (rotation amount) of the motor. Therefore, when the electrode 1 moves between the unwinder UW and the rewinder RW, the movement distance can be detected by the rotary encoders 20U and 20R. Although for the convenience of description, Figure 2It is shown that the unwinder encoder and the rewinder encoder are provided outside the unwinder UW and the rewinder RW, respectively, but the encoders may be embedded in the unwinder UW and the rewinder RW, respectively.

[0454] The inspection and / or measurement device 10 can be connected to the position measurement device 20 in a wired or wireless manner to obtain the coordinate values ​​of the electrode portion for which the inspection and / or measurement data has been simultaneously obtained. In this case, the inspection and / or measurement device 10 can transmit the inspection and / or measurement data and the coordinate values ​​to the roll map generation unit 40.

[0455] The roll map generating apparatus 100 according to the present disclosure may include a controller 30 (a programmable logic controller (PLC)) for controlling the movement of the electrode between the unwinder UW and the rewinder RW. In this case, the controller 30 may be connected to the position measuring device 20 and the inspection and / or measuring device 10 to receive the coordinate values ​​from the position measuring device and the inspection and / or measurement data from the inspection and / or measuring device. The controller 30 may match the inspection and / or measurement data with the coordinate values ​​of the electrode portion for which data has been acquired, and transmit the matched data (the coordinate value data and the inspection and / or measurement data) to the roll map generating unit 40.

[0456] Alternatively, the controller 30 may process the inspection and / or measurement data and the coordinate value data in a form that can be easily processed by the roll map generation unit 40. Since the PLC 30 is connected to the inspection and / or measurement device 10, the encoder, etc. to control the roll-to-roll transfer of the electrode, in terms of data processing and management, it is more efficient for the inspection and / or measurement device 10, the encoder, etc. to transmit the data to a data processing system (such as an electrode manufacturing execution system (MES)) with the help of the controller 30 than to directly transmit the data to the MES.

[0457] At the same time, depending on the type of inspection and / or measurement device, some inspection and / or measurement devices may be directly connected to the position measurement device to acquire both inspection and / or measurement data and coordinate value data. Furthermore, some inspection and / or measurement devices may only acquire inspection and / or measurement data, and the coordinate value data corresponding to the corresponding data may be acquired by the position measurement device and matched in the controller 30. In other words, the object (location) to be matched with the coordinate value data may vary depending on the type, configuration, processing capabilities, etc. of the inspection and / or measurement device.

[0458] At the same time, the coordinate value of the electrode portion for which inspection and / or measurement data has been acquired can be a value obtained by adding the coordinate value of the rotation amount of the winding machine RW at the acquisition time point of the corresponding inspection and / or measurement data to the offset distance (i.e., the distance between the corresponding inspection and / or measuring device 10 and the winding machine).

[0459] exist Figure 2 and Figure 3 In the embodiment, when the inspection and / or measurement device 10 inspects the electrode 1 and acquires inspection data, the position of the electrode portion of the electrode 1 is detected by the position measurement device 20 of the rewinder RW. However, at the time the inspection data is acquired, the electrode portion of the electrode 1 has not yet reached the rewinder RW. In this embodiment, since the coordinates of the winding diagram are based on the rewinder RW, the longitudinal coordinates detected when the electrode portion actually reaches the rewinder RW become the longitudinal coordinates of the corresponding electrode portion. Therefore, the longitudinal coordinates of the electrode portion for which the inspection and / or measurement data was acquired can only be obtained by adding the distance (offset distance) between each inspection and / or measurement device and the rewinder RW to the encoder value (longitudinal coordinate value) of the rewinder RW at the time the data was acquired. For example, the coordinate value on the longitudinal axis of the electrode portion a for which the load was detected by the load measurement device 11 is the value obtained by adding the encoder value (coordinate value) A of the rewinder RW at the time of the detection to the offset distance L1 between the load measurement device 11 and the rewinder RW. Based on the same principle, the coordinate value in the longitudinal direction of the electrode portion b at which the reference point is detected by the reference point measuring device 12 is obtained by adding the encoder value B of the rewinding machine RW at the time of detection to the offset distance L2 between the reference point measuring device 12 and the rewinding machine RW. Furthermore, the coordinate value in the longitudinal direction of the electrode portion c is obtained by adding the encoder value C of the rewinding machine RW at the time of detection to the offset distance L3 between the visual inspection device 13 and the rewinding machine RW.

[0460] At the same time, the coordinate values ​​in the width direction of the electrode portion for which the inspection and / or measurement data has been acquired can be acquired by means of the inspection and / or measurement device 10 .

[0461] For example, an inspection and / or measuring device 10 (such as Figure 3 The appearance inspection device shown) may be provided with a program capable of scanning and inspecting the exterior of the entire electrode 1 in the width direction. Alternatively, the inspection and / or measuring device itself may be movably mounted in the width direction of the electrode. Alternatively, a plurality of inspection and / or measuring devices may be mounted in the width direction of the electrode. Therefore, the inspection and / or measuring device 10 can acquire data on the quality or defects of each point in the width direction of the electrode (for example, load data or appearance defect data), and the position data (coordinate values) in the width direction of the acquired data can also be acquired by the inspection and / or measuring device 10. Therefore, each inspection and / or measuring device 10 can acquire all inspection and / or measurement data (for example, data on quality or defects), the coordinate values ​​of the electrode 1 in the longitudinal direction and the width direction for which the inspection and / or measurement data has been acquired, and transmit all data to the roll map generation unit 40 to be described below.

[0462] Figure 4 It is a schematic diagram of a data visualization device provided in a roll map generating apparatus.

[0463] The roll map generating apparatus 100 according to the present disclosure includes a roll map generating unit 40 for generating a roll map represented in a planar shape simulating a moving electrode and displaying at least some inspection and / or measurement data.

[0464] The roll map generation unit 40 can display coordinate values ​​and at least some inspection and / or measurement data on the roll map. Furthermore, the roll map generation unit 40 can display reference points marked on the electrodes at predetermined intervals at certain locations on the roll map, with these locations on the roll map corresponding to the coordinate values ​​of the corresponding reference points. In other words, the reference point data can also be displayed on the roll map.

[0465] To this end, the roll map generation unit 40 can be connected to the position measurement device 20 and the inspection and / or measurement device 10 to receive the coordinate value data and the inspection and / or measurement data. Alternatively, the roll map generation unit 40 can be connected to the controller 30 to receive the coordinate value data and the inspection and / or measurement data via the controller.

[0466] refer to Figure 2 The volume image generation unit 40 may include a database 41 for storing data acquired from the inspection and / or measurement device 10 and the position measurement device 20 or storing data on the quality, size, etc. of normal electrodes. In addition, the volume image generation unit 40 may include a central processing unit 42 for processing the acquired data and instructing a visualization device 43 provided in the volume image generation unit 40 to visualize the data.

[0467] The roll map generation unit 40 includes a visualization device 43 for defining a visualization area to form a roll map of the simulated electrode 1 and displaying the coordinate values ​​within the defined area. The visualization device 43 can match the coordinate value data with the inspection and / or measurement data and display the matching result. The visualization device 43 can be connected to the central processing unit 42 and can visualize the inspection and / or measurement data and the coordinate value data according to instructions from the central processing unit.

[0468] like Figure 4 As shown, the visualization device 43 includes an acquisition data input unit 43a, a roll coordinate identifier 43b and an image generator 43c.

[0469] First, the acquisition data input unit 43 a receives data from the central processing unit 42 .

[0470] The roll image coordinate identifier 43b can define a visualization area to form a roll image, and define the coordinate values ​​of pixels within the visualization area for each data element of the acquired source data. In this case, when data on the electrode roll specifications (such as batch number, length, and width, etc.) is input to the controller 30, DB, server (not shown), etc. by registering information about the electrode roll, the roll image coordinate identifier 43b can calculate and determine the visualization area of ​​the roll image based on the data on the size of the electrode 1 according to a predetermined conversion ratio. Alternatively, the roll image coordinate identifier 43b can also calculate and determine the visualization area of ​​the roll image based on the above-mentioned data of the coordinate values ​​of the electrode 1 in the longitudinal and width directions according to a predetermined conversion ratio.

[0471] The roll coordinate identifier 43b may map the acquired inspection and / or measurement data with data of coordinate values ​​of the electrode 1 (in width and longitudinal directions), and allocate the mapped data on the visualization area (roll map) according to the coordinates of the pixels.

[0472] The image generator 43c can represent the mapping data elements of the coordinates assigned to each pixel in the visualization area as at least one legend. Legends are various shapes (such as circles, quadrilaterals, and triangles) displayed in the visualization area, shapes with specified colors, etc. Therefore, the roll map according to the present disclosure can be made in the following manner: at the coordinates of the pixels corresponding to each position data of the actual electrode 1 (coordinates on the roll map), the inspection and / or measurement data are intuitively displayed in the shape, form, color, etc. specified for each data in the visualization area called the roll map, and the inspection and / or measurement data are realized on the roll map by the image generator 43c.

[0473] Furthermore, based on data stored in a storage device such as the database 41 or a separate server, data corresponding to a specific range of the volume map can be loaded from the storage device and displayed on the screen (generated as an image). At this time, the central processing unit 52 can instruct the visualization device 43 to visualize and display the inspection data determined to be abnormal compared to the normal data stored in the database 41 and different from the other data.

[0474] The size of the visualization area or the coordinates of the visualization area can be set or identified to generate an image by various conventional user interfaces or various programs or processing tools related to data distribution, processing, analysis, and visualization. Therefore, the volume map generation unit 40 is only one embodiment and is not limited to the above-mentioned embodiment.

[0475] The volume map generation unit 40 may be, for example, a data processing system (such as MES) or a component of the system. Alternatively, the volume map generation unit 40 may be software having the operating logic of the data processing system, hardware including corresponding software, a mechanical device, etc.

[0476] A data processing system is a system (including hardware and software) for inputting, processing, outputting, communicating, and performing a series of operations on data. In the electrode 1 manufacturing process, an electrode MES is provided for managing a series of electrode manufacturing processes (such as coating, pressing, and slitting). Therefore, when the coordinate data and inspection data are transmitted to the electrode MES, the electrode MES can generate the roll diagram. In this case, the roll diagram can be generated for each of the coating process, pressing process, and slitting process.

[0477] The electrode undergoing the electrode manufacturing process is installed between the unwinder and rewinder in the slotting process. During the slotting process, the electrode installed between the unwinder and rewinder is punched, and an electrode joint is formed on the electrode. Even during the slotting process, the aforementioned inspection and / or measurement unit, coil map generation unit, position measurement device, and other devices are installed to generate a coil map for the slotting process. In this case, the coil map generation unit for the slotting process can be a slotting MES.

[0478] Alternatively, the roll map generation unit may be a so-called statistical process control (SPC) device. Here, SPC is a management method that efficiently operates a process in a statistical method to achieve a quality or productivity target required for the process.

[0479] Alternatively, for example, a data processing system such as an MES can generate a basic volume map in which at least some inspection and / or measurement data is matched to coordinate values, and a higher-level system such as an SPC device can generate an intermediate volume map that additionally displays the coordinate values ​​of the overall inspection and / or measurement data, detailed data, etc. In this case, as the amount of data increases, additional servers capable of storing the overall data or detailed data may be required.

[0480] When a large amount of data can be processed systematically, the basic volume map and the intermediate volume map can also be processed by one data processing system.

[0481] At the same time, in addition, data processing systems such as MES and SPC can be connected to upper-level systems (e.g., data warehouses (DW)). In this case, process data additionally acquired from other processes can be used in combination with data (coordinate values ​​and inspection and / or measurement data) acquired from the electrode manufacturing process or the slotting process. That is, when the coordinate values ​​of the electrode are specified and the electrode corresponding to the coordinate value is used in a subsequent process of the electrode manufacturing process / slotting process to manufacture a battery cell semi-finished product or a battery cell, the process data of the subsequent process can match the inspection and / or measurement data. Therefore, the manufacturing history of a specific electrode part can be identified from the subsequent process to the previous process. Therefore, quality control and analysis can be performed more easily. In addition, when a problem occurs in a battery cell semi-finished product, a battery cell, or a battery module or battery pack including a battery cell, quality tracking and analysis of the cause of the problem can be easily performed with the help of matching data.

[0482] As described above, in a broad sense, throughout the battery manufacturing process for producing finished cells, modules, or battery packs (including electrode manufacturing), various data or information required by various data processing systems related to electrode manufacturing can be connected to the reel diagram. Therefore, when the reel diagram is used, quality control, analysis, and tracking related to battery manufacturing can be easily performed.

[0483] In addition, if Figure 2 As shown, the roll image generation device 100 according to the present disclosure may include a manual input device 60, into which the inspection and / or measurement data of the electrode that has been manually inspected and / or measured is input. The manual input device 60 can directly transmit the inspection and / or measurement data that has been manually inspected and / or measured to the roll image generation unit 40. In this case, the manual input device can cooperate with the position measurement device to obtain the coordinate value of the electrode 1 part for which the inspection and / or measurement data has been obtained. Alternatively, the manual input device can be connected to a controller to transmit the manually obtained inspection and / or measurement data and the coordinate value data to the roll image generation unit via the controller.

[0484] For example, information about defects, breaks, and the like in the electrode 1 can be automatically acquired by the inspection and / or measurement device 10, but can also be directly input by an operator in the electrode production line. In this case, the operator can input the length and location of the defect visually detected and affix a label to the defect. Alternatively, if an electrode is broken, the operator can connect the electrodes using a joint connection member and input the connection, the length of the broken electrode, and other information into a manual input device.

[0485] The roll graph generating unit 40 may display the constructed roll graph on the display unit 50 so that data on quality or defects can be intuitively and easily recognized at a glance.

[0486] The manual input device 60 and the display unit 50 may be a predetermined input / output interface (I / F). For example, an input device (not shown) such as a keyboard, a mouse, or a touch panel may be used as the manual input device.

[0487] Furthermore, the roll map generating apparatus according to the present disclosure may be provided with an interface for connecting the roll map generating unit, the controller, the position measuring device, the inspection and / or measuring unit, etc. to the display unit to transmit or receive data.

[0488] Meanwhile, the scroll map generating unit 40 may generate at least one of an absolute coordinate scroll map showing coordinate values ​​of the electrode removal portion and the remaining electrode portion after removal, and a relative coordinate scroll map showing only coordinate values ​​of the remaining electrode portion.

[0489] Figure 5 FIG. 1 is a schematic diagram showing an embodiment of a roll chart produced by a roll chart generating device according to the present disclosure.

[0490] On the roll map RM1, the longitudinal dimensions of the electrode 1 are represented as coordinates at predetermined intervals. As described above, since information regarding defects, quality, electrode breakage, and other issues arising from the electrode manufacturing process is displayed along with the coordinate values ​​on the roll map, data regarding quality or defects in the electrode manufacturing process can be intuitively and easily identified at a glance.

[0491] refer to Figure 5 The system intuitively displays information on appearance defects, such as pinhole defects f1 and line defects f2, at the coordinates where the defects occurred. Furthermore, it displays mismatches f3 between the coated and uncoated areas. It also displays defects such as loading and shows any discarded portions of the outermost electrode.

[0492] Furthermore, reference points M1 , M2 and M3 marked on the electrode 1 are shown at points of 300, 600 and 900 meters.

[0493] At the same time, when the electrode 1 is broken and the operator connects the electrode 1 using the joint connection member, the length of the electrode is reduced by the length of the broken electrode. In addition, as described above, the point where the appearance defect occurs is also removed, and the operator can connect the electrode. The coordinate values ​​on the roll diagram can be corrected by simulating this situation in the roll diagram RM1. Reference Figure 5 , together with a roll graph showing the absolute coordinates A of the coordinate values ​​of the electrode removal portion and the remaining electrode portion after removal, and a roll graph showing only the relative coordinates B of the coordinate values ​​of the remaining electrode portion. Figure 5 As shown, the relative coordinates B and the absolute coordinates A can be displayed together on one roll diagram RM1, but they can also be displayed separately. The roll diagram showing the relative coordinates shows the actual state of the electrode.

[0494] Meanwhile, electrodes can be classified into: single-sided electrodes, where the electrode is coated on only one surface (upper or lower surface) of the current collector; and double-sided electrodes, where the electrode is coated on both the top and back surfaces. In this case, the roll pattern generation unit can generate a roll pattern on one surface, any one surface, or both surfaces of the electrode (current collector).

[0495] Figure 6 FIG. 1 is a flow chart illustrating one embodiment of a volume map generating method according to the present disclosure.

[0496] like Figure 6 As shown, according to one embodiment of the present disclosure, the roll map generation method includes: obtaining inspection and / or measurement data by inspecting and / or measuring an electrode moving between an unwinder and a rewinder, and obtaining a position of the moving electrode as a coordinate value (S2); and

[0497] A volume map is generated by marking at least some inspection and / or measurement data and coordinate values ​​on a plane simulating a moving electrode (S3).

[0498] Before acquiring inspection and / or measurement data and acquiring the position of the electrode as a coordinate value ( S2 ), an electrode roll information registration operation ( S1 ) of registering the specifications of the electrode roll mounted on the unwinder may be performed.

[0499] The specifications of the electrode roll are the specifications of the corresponding electrode roll, such as the electrode type determined based on the batch number, electrode length, electrode width, input material, composition, etc. of the corresponding electrode roll. In order to register the electrode roll information, when the electrode roll is introduced into the unwinder, the electrode roll can be input to a server, etc., which does not display some or all of the specification information including the batch number of the electrode roll. Such data input can also be performed manually by an operator. Alternatively, an identification mark capable of identifying the specifications or detailed data of the electrode (such as a barcode attached to the electrode roll) can be automatically input to the server, etc. by an identification mark recognition device (such as a barcode reader) that scans the identification mark.

[0500] When the information about the electrode roll is registered in the server, the specifications or detailed data of the electrode (roll) (such as the batch number, process and equipment) can be loaded on the roll map made from the server in the future and compared with the roll Figure 1 Furthermore, since specifications related to the length and width of the electrode roll can be identified from this data, the shape and size of the roll image can be determined at a predetermined ratio proportional to the length and width of the electrode when the roll image is created by the roll image generation unit. That is, based on the conversion ratio stored in the roll image generation unit, the shape and size of the roll image strip corresponding to the length and width of the corresponding electrode can be displayed on an output device such as a display. In this case, information regarding at least some of the specifications of the electrode roll can be displayed together with the roll image.

[0501] To generate a roll map, inspection and / or measurement data is acquired by inspecting and / or measuring the electrodes moving between the unwinder and rewinder. Furthermore, the positions of the corresponding electrodes must be acquired as coordinate values ​​( S2 ). As described above, the inspection and / or measurement data can be acquired automatically by a predetermined inspection and / or measurement device or manually by an operator. In this case, the operator can input the inspection and / or measurement data and the coordinate values ​​of the corresponding electrodes into a manual input device.

[0502] For example, before the current collector coats the electrode, when there is foreign matter or a fault on the electrode 1, the portion where the foreign matter or the fault is present is cut and discarded to the defect removal port, and the electrodes can be directly connected or the electrodes can be connected with the aid of a connecting member such as polyethylene terephthalate (PET). Alternatively, the electrodes can be connected even when a fault occurs on the electrode after coating or when the electrode breaks due to excessive tension. In addition, since the outermost portions of the starting and end points of the electrode may have uneven quality, the outermost portions are cut and discarded. Such an electrode connection interval or discard interval can be measured automatically or manually. For example, when a disconnection interval is connected, the operator can input the position of the interval directly into a server or a data processing system, or input the position of the interval into a separate input device that can communicate with a server, etc. and be installed in an electrode production line. Alternatively, the operator can also attach an indicator label directly to the disconnection interval or connection interval on the electrode.

[0503] The electrode 1 is inspected by a predetermined inspection and / or measurement device 10 installed in the electrode production line. For example, a measurement device such as an electrode slurry loading measurement device, a size and width measurement device, a reference point measurement device, and an appearance inspection device can be installed in the production line. As the electrode slurry loading measurement device, a non-contact thickness measurement sensor such as an ultrasonic sensor, a displacement sensor, a laser sensor, and a confocal thickness sensor can be used. Since, for example, the thickness of the electrode foil is known, the confocal thickness sensor can measure the slurry loading by analyzing the wavelength of the reflected light of the light transmitted from the sensor and calculating the distance (thickness) between the sensor and the electrode.

[0504] The size and width measuring device can be a visual measuring device that can measure the width of the electrode, the width of the coated portion, and the width of the uncoated portion by capturing or scanning the exterior of the electrode. When the widths of the coated and uncoated portions are identified, it can also be determined whether the coated and uncoated portions are mismatched.

[0505] The appearance inspection device can capture an image of the exterior of the electrode. This allows data on appearance defects such as pinholes, lines, and pits to be obtained, as well as data on insulation defects or the exterior of the insulation. The appearance inspection device can also include an inspection device with a sensor, such as a color sensor capable of determining the color of the electrode. The color sensor can detect portions that have a different color from the electrode, such as PET connectors.

[0506] The inspection and / or measuring device is an exemplary illustration, and the type of the inspection and / or measuring device is not limited as long as data on quality or defects in the electrode manufacturing process or the groove forming process can be acquired.

[0507] At the same time, the electrode slurry applicator or the like coats the very front end of the electrode (the point where electrode coating begins), while adjusting coating conditions such as the loading amount. The loading amount in this area can be varied. Therefore, data regarding this condition adjustment period can also be acquired by an inspection and / or measurement device, and this data can be displayed on the roll chart bar.

[0508] Furthermore, it is necessary to acquire the position of the electrode moving in the roll-to-roll state as coordinate values ​​and acquire inspection and / or measurement data. In other words, it is necessary to specify the positional data of the electrode for which data has been acquired. In other words, assuming that a roll chart strip or roll chart has a coordinate system consisting of two coordinate axes in the longitudinal and width directions, it is necessary to identify the positional data of the electrode from which the position (coordinates) are extracted, so that specific data can be displayed at a specific position (coordinate) in the coordinate system.

[0509] As an embodiment, an encoder installed on the unwinder UW or rewinder RW can detect the longitudinal position data (coordinate values) of the electrode. The coordinate values ​​are matched with inspection and / or measurement data. The matching of the coordinate values ​​and data can be performed by a corresponding inspection and / or measurement device or a PLC.

[0510] At the same time, the coordinate values ​​of the electrode in the width direction can be obtained by the inspection and / or measurement device. The coordinate values ​​in the width direction can also be matched with the inspection and / or measurement data and displayed on the roll map.

[0511] In addition, if Figure 5 As shown, reference points marked on the electrode at predetermined intervals may be displayed on the roll map at positions corresponding to coordinate values ​​of the respective reference points.

[0512] A roll map is created by displaying acquired inspection and / or measurement data, coordinate values, and other data on a simulated electrode surface. The roll map generation unit is a data processing system capable of processing data, such as an electrode MES, assembly MES, or a higher-level system such as SPC or DW. Alternatively, the roll map generation unit can be a component of the system.

[0513] The roll map generation unit generates a roll map by marking at least some of the inspection and / or measurement data at coordinate values ​​indicating locations on the electrode where the corresponding data was acquired. Furthermore, all of the inspection and / or measurement data, or detailed data regarding one or more of the inspection and / or measurement data, may be additionally displayed on the roll map. The detailed data is data associated with the inspection and / or measurement data and may be, for example, an image of the appearance of a specific location on the electrode.

[0514] Furthermore, process data for each detailed process (e.g., coating, rolling, slitting, and slotting) during electrode manufacturing can be displayed in conjunction with specific coordinate values ​​or specific data display units in the coil diagram. For example, discharge conditions (such as the electrode drying temperature in the coating process and the slurry discharge pressure of the coater) can be used as process data for the coating process. Alternatively, the pressing pressure in the rolling process can also be used as process data.

[0515] At least one server may be provided to store the entire data, the detailed data, or the process data. The roll map generating unit may receive necessary data from the server and display the data together on the roll map.

[0516] Furthermore, the inspection and / or measurement data can be compared with normal data, and the data determined to be abnormal can be displayed on the volume map to be visually distinguished from other data. To this end, the volume map generation unit can be provided with a predetermined visualization device.

[0517] Furthermore, data on the input state of input materials fed into the electrode manufacturing process can be compared with the volume Figure 1 Therefore, quality control can be performed more easily by comparing the material input status and the data on the roll map.

[0518] Figure 7 is a schematic diagram of a roll diagram according to one embodiment of the present disclosure, and Figure 8 is a schematic diagram of a roll diagram according to another embodiment of the present disclosure.

[0519] Figure 7 The roll map RM2 in FIG. 1 includes a roll map bar 110 displayed in a bar shape simulating an electrode in a roll-to-roll state. Figure 7 and Figure 8 The roll diagram in shows the roll diagram of the electrode coating process.

[0520] On the roll map, at least some inspection and / or measurement data acquired by inspecting and / or measuring the moving electrode are displayed at predetermined positions on the roll map strip corresponding to the positions of the electrodes for which data have been acquired.

[0521] The roll diagram bar 110 simulates an actual electrode installed in a roll-to-roll state and moving between an unwinder and a rewinder, and may be displayed in a long rectangular planar shape.

[0522] The start and end points of the roll image bar 110, as well as the portion of the roll image bar 110 between the start and end points, can be displayed synchronously with the path of the electrode as it moves between the unwinder and rewinder. For example, if the length of the electrode roll to be coated is 3,000 meters, the roll image bar 110 simulating this electrode will also be displayed on the screen, decreasing at a predetermined ratio (ratio) over the 3,000 meters. Furthermore, since detailed information such as the electrode roll's batch number and width can also be identified when a specific electrode roll is installed between the unwinder and rewinder, in addition to the length of the electrode (roll), the width will also decrease at a predetermined ratio, and the roll image bar 110 can be displayed on the screen with the length and width reduced to the predetermined ratio. Therefore, the length and width of the roll image bar 110 correspond to the length and width of the actual electrode moving at the predetermined ratio. Furthermore, if a specific electrode position is represented as coordinate values ​​expressed in units of the electrode's length and width, the corresponding coordinates can also be displayed on the roll image bar 110, decreasing at a predetermined ratio. Figure 7 and Figure 8 Coordinate values ​​140 indicating the positions of the electrodes in the longitudinal direction at predetermined intervals of the scroll bar 110 in the longitudinal direction are shown.

[0523] Furthermore, since the reel bar 110 is synchronized with the actual electrode (path) or electrode movement when being coated between the unwinder and the rewinder, even when coating is being performed to adjust coating conditions before actual coating, the coating status of the corresponding portion can be displayed on the reel bar 110. Therefore, the reel bar 110 can be displayed in a manner divided into a condition adjustment section A for coating condition adjustment and a mass production section B where actual coating is performed under the adjusted conditions.

[0524] Furthermore, even when a section (disconnection section 122 ) is generated in which an electrode is broken and reconnected in the coating process, this can be displayed on the roll bar 110 .

[0525] When the roll graph bar 110 displays the electrode path in synchronization with the actual electrode movement, a portion of the data displayed on the roll graph bar 110 is a portion that displays data about quality or defects in the actual electrode coating process. In this specification, "data about quality or defects" includes not only data within a normal range, such as loading data and size / width data, but also data about electrode position obtained from sample inspection in addition to data about actual defects, such as appearance defects, insulation defects, and mismatch between the electrode coated portion and the electrode uncoated portion. That is, in theory, as long as there is an inspection and / or measuring device that can measure a specific quality in the electrode manufacturing process, all data measured by such an inspection and / or measuring device can be displayed on the roll graph. Therefore, in the specification, "data about quality or defects in the electrode coating process" includes normal data as well as data about defects, and indicates all other quality data that can be quantified or visualized and displayed on the roll graph.

[0526] Furthermore, in this specification, "intuitive display" of data or "visualization" of data can be defined as the intuitive identification and display of data on a roll chart simulating an electrode using at least one of identifiable shapes, colors, sizes, patterns, contrast, transparency, various symbols, numbers, letters, or other visual content. Furthermore, "intuitively displayed portion" can be defined as a display portion that includes not only a portion displayed with a shape, color, etc. at a specific location on the roll chart strip, but also a portion displayed directly with a shape, color, etc. within a specific range or the entire range of the roll chart strip. For example, when data on the electrode slurry loading amount is displayed with a color, etc. in the entire roll chart strip, the data display portion may correspond to the entire portion of the roll chart strip rather than a portion thereof. In the drawings of this specification, each data display portion is displayed separately by hatching, but it goes without saying that the corresponding data display portions can be displayed with colors to distinguish them from each other.

[0527] Since the reel map strip 110 according to the present disclosure simulates an actual electrode to be coated, detailed information about the actual electrode (reel) installed between the unwinder and the rewinder is preferably displayed together with the reel map strip 110 .

[0528] In addition to the batch number of the electrode roll, Figure 7The upper diagram also displays detailed information 130 regarding the electrode roll's manufacturing line, manufacturing process, manufacturing equipment, and electrode side profiles. This detailed information 130 not only allows for the identification of previous process history information for the electrode roll submitted to the coating process, but also provides additional information regarding which production line or equipment was used for coating, whether one or both sides of the electrode were coated, and the electrode roll's specifications. Furthermore, by clicking a query button displayed in the upper right corner of the screen and entering keywords related to production lines, processes, manufacturing equipment, or electrode side profiles, the corresponding roll map RM2 or roll map bar 110 can be loaded and displayed on the screen.

[0529] At least one of the data on the quality or defect 120 displayed on the roll map bar 110 may be acquired manually or automatically.

[0530] According to one embodiment of the present disclosure, data reference regarding quality or defects that may be displayed on the roll chart bar 110 or that may be identified from the roll chart Figure 7 and Figure 8 Specifically identified as follows:

[0531] 1) Data regarding at least one of the size and width of the electrode 125;

[0532] 2) data on the mismatch between the coated and uncoated portions of the electrode;

[0533] 3) data regarding the slurry loading on the electrode 121;

[0534] 4) Data on electrode appearance 123;

[0535] 5) Data 122 on the location of the electrode disconnection interval or the connection location between electrodes;

[0536] 6) data 129 on the position of the sample inspection unit;

[0537] 7) data on the location of electrode discard intervals;

[0538] 8) data 124 and 127 on insulation quality or defects in an insulation material coating process performed after electrode slurry coating; and

[0539] 9) Other defect data 128.

[0540] also,

[0541] 10) data regarding reference points marked at predetermined intervals on the electrodes; and

[0542] 11) Data on electrode thickness after rolling can be displayed on the coil bar.

[0543] In order to display the inspection and / or measurement data 120, the name of the data displayed in a specific color, shape, form, etc. can be briefly displayed at the top of the screen, and the actual data displayed in this color, shape or form can be displayed in a specific position or a specific range on the volume bar 110.

[0544] Specifically, when the size or width of the electrode exceeds a normal range, relevant data 125 may be displayed on the roll graph.

[0545] In addition, data 126 regarding mismatch of the widths of the coated portion and the uncoated portion outside a set range may be displayed on the roll map.

[0546] Furthermore, the data 121 on the electrode slurry loading amount may be displayed as normal 121 a , insufficient 121 b , and excessive 121 c by hatching within a specific range on the volume bar.

[0547] In addition, electrode appearance defects 123 are displayed as circles at specific locations on the scroll strip.

[0548] In addition, the left end of the roll image bar 110 displays a disconnected section 122, where the electrodes are cut and connected by a connecting member such as a PET. The roll image can also display a case where electrodes are directly connected without a connecting member. When such an electrode connection is made, the operator can directly display data or position information related to the section on the roll image RM2.

[0549] In addition, the roll image RM2 can also display data 129 of the electrode portion provided for sample inspection.

[0550] In addition, the roll map can also display data about the discarded electrode interval. For example, the outermost interval of the coated electrode is cut and discarded. The roll map RM2 according to the present disclosure can also display information about such discarded intervals.

[0551] During the electrode coating process, in addition to coating the electrode slurry, an insulating material is also coated on the boundary between the coated and uncoated portions. Therefore, the coil image strip 110 may also display information regarding insulation defects 127 or insulation appearance defects 124. In this sense, the "electrode coating process" in this specification clearly includes "coating the insulating material" in addition to "coating the electrode slurry."

[0552] In addition to displaying appearance defects or insulation defects, data regarding other defects 128 may also be displayed on the reel map strip 110. The data regarding other defects 128 are other defects that appeared during the electrode coating process. However, if the data is determined to be a specific defect upon completion of coating or in a subsequent process, the data may be subsequently changed to such a specific defect and displayed on the reel map RM2. Displaying the other defect data may be important material for identifying the cause of any defects that occur in subsequent processes.

[0553] As described above, by displaying data about quality or defects 120 in a specific shape, color, etc. on the roll map bar 110 in synchronization with the electrode path, for example, quality-related historical information in the electrode coating process or other roll-to-roll process can be identified at a glance.

[0554] In addition, if Figure 7 As shown, when a specific range of the roll bar 110 is designated (clicked), the inspection and / or measurement data in the electrode range corresponding to the specific range or the process data of each detailed process when manufacturing the electrode can be displayed. Figure 7 When selecting the mismatch interval 126 of the roll graph bar in the image, in addition to the loading amount in the mismatch interval 121, detailed information 150 about the mismatch section 126 and information about the width 125 can be found at the lower left end of the roll graph bar. This range can be specified by clicking while moving the query bar in the left and right directions, and detailed data within the range can be checked by specifying the defect interval in units of a set length (for example, in units of 1 meter). The upper portion of the roll graph bar 110 displays only the loading amount of one side surface of the electrode, but in the detailed information 150, the roll graph can be formed so that the loading amount of the upper and lower surfaces of the electrode can also be checked.

[0555] At the same time, when the electrode appearance defect data 123 on the roll image bar 110 is clicked, the appearance image 163 of the electrode captured by the appearance inspection device can be displayed separately from the roll image bar. The appearance defect image 163 displayed by clicking the appearance defect data 123 is displayed in the Figure 7 The lower right end of the roll image strip in the image is displayed magnified. Furthermore, when the appearance image is displayed, detailed information 162, including the location coordinates of the appearance defect captured by the appearance inspection device, can also be displayed on the screen along with the appearance image 163. This detailed information 162 may include information about the electrode's lot ID, appearance inspection device ID, appearance defect type, electrode channel, and the location coordinates, slope, diameter, and date and time of appearance defect occurrence. Since this information is stored on the server, it can be loaded from the server and displayed separately on the screen by clicking the appearance defect image in the roll image strip.

[0556] In addition, according to Figure 7The roll pattern RM2 of the embodiment shown in FIG is displayed on the screen for each channel L1 and L2 on the electrode to which the electrode slurry is applied. Since the electrode can have a coating portion to which the electrode slurry is applied formed at predetermined intervals or in a predetermined pattern on the electrode foil, the roll pattern RM2 can be produced for each channel L1 and L2 to which the electrode slurry is applied. Figure 7 A volume diagram of two channels L1 and L2 is shown.

[0557] Figure 8 The roll image RM3 in FIG. 2 is a roll image RM3 of a double-sided electrode in which both the top surface T and the back surface B of the electrode are coated with electrode slurry. Since the roll image 200 displays the top surface T and the back surface B of the double-sided electrode on the upper and lower portions of the same screen, respectively, data 220 regarding quality or defects related to the coating of the electrode slurry or insulating material applied to both surfaces of the electrode can be compared and clearly identified.

[0558] In addition, the roll diagram RM3 according to the embodiment displays data 250 of input states of electrode foil, electrode paste, and insulating material input to the electrode coating process and data 260 of a loading amount of the electrode paste input to the electrode coating process together with the roll diagram RM3 in the longitudinal direction of the roll diagram.

[0559] The electrode foil, electrode paste and insulating material input to the electrode coating process are displayed at the top of the screen. Indicates the strips and rolls of electrode foil, electrode paste and insulating material. Figure 1 The bar extends from left to right along the longitudinal direction of the roll RM3 on the screen. Therefore, the unextended portion of the bar indicates that the corresponding material (electrode foil, electrode slurry, or insulating material) has not been input into the electrode coating process. Therefore, the section of the electrode coating process where a specific material has been input can be clearly identified from the data regarding the state of the input material.

[0560] In this embodiment, data 221 of the loading amount of the electrode slurry input to the electrode coating process is displayed on the roll diagram along the longitudinal direction of the roll diagram, but is not aligned with the roll diagram. Figure 1 The data is displayed in the lower part of the roll graph along the longitudinal direction of the roll graph and is separated from the roll graph. Figure 1 The distribution of the loading along the length of the electrode is displayed, so that information about excessive or insufficient loading can be more easily identified, and the numerical value of the loading can also be displayed as needed. Therefore, there is an advantage in that information about the loading can be more intuitively identified.

[0561] Figure 8In addition to displaying the batch number of the electrode roll, the upper end of the screen also displays detailed data 230 about the model, process, manufacturing equipment and channel number of the electrode roll, the side surface of the electrode, etc. In this embodiment, the upper end of the screen also additionally displays a menu related to the input status (input), the electrode (roll map) calculated by the input material (output), a menu 231 related to the measurement value, a menu 232 related to the selection of the side surface of the electrode, a menu 233 related to the enlargement and reduction (zoom) of the screen, and a menu 234 related to other measurement value options. By selecting such a menu, various types of roll maps RM3 corresponding to the corresponding menus can be displayed on the screen. At the top of the roll map screen of this embodiment, data labels related to loading amount and defects, data labels related to surface defects, and data labels related to sample inspection are displayed respectively for easy distinction. Through these data labels, the data type displayed on the roll map bar can be easily distinguished.

[0562] Also in Figure 8 The following data are displayed on the roll chart bar: 1) data 225 on at least one of the electrode size and width; 2) data 226 on the mismatch between the electrode holding portion and the uncoated portion; 3) electrode slurry loading data 221; 4) electrode appearance defect data 223; 5) data 222a, 222b on the position of the fracture interval or the connection position between electrodes; 6) data 229 on the sample inspection position; 7) electrode discarding interval position data 222c, 8) data 227 on the insulation quality or defects in the insulation material coating process performed after the electrode slurry is coated; and 9) other defect data.

[0563] When the size or width of the electrode exceeds the normal range, data 225 related thereto is displayed as a rectangle on the volume graph, and mismatch related data 226 is also displayed in the form of a bold rectangle.

[0564] In this embodiment, the electrode slurry loading amount related data 221 is displayed in more detail, that is, normal 221a, insufficient 221b, 221c, and excessive 221d, 221e are displayed in a specific range on the volume bar 210, respectively.

[0565] Electrode appearance defects are displayed as circles, black circles, or black bars 223 at specific locations on the roll image strip 210. In this embodiment, the appearance defects 223 are further subdivided into pinholes, lines, and pits, and are displayed on the roll image 200 in different identification shapes.

[0566] In addition, a broken section 222a where the electrodes are cut and connected by a connecting member such as PET and an inter-electrode connecting section 222b can also be displayed. Figure 8 The PET connection interval is displayed on the volume map.

[0567] The roll chart also displays, for example, defect intervals 228a automatically measured and displayed by the measuring instrument and manually displayed intervals 228b manually input by the operator. The roll chart displays the start S and end E of each interval, thereby providing information about the length of the corresponding interval and its start and end points.

[0568] In addition, the outermost discarded section 222 c is also shown by being shaded on the volume bar 210 .

[0569] In this embodiment, the electrode portion 229 provided for sample inspection is also subdivided into a self-inspection portion and a quality inspection (QA) portion, which are respectively displayed on the volume chart bar 210 .

[0570] exist Figure 8 The loading-related data (chart) 260 displayed at the lower end of the embodiment in parallel with the roll bar clearly shows the overloaded portion 261 and the portion (PET connection interval) 262 where the electrode slurry is not loaded, and these are consistent with the display in the roll bar 210 above.

[0571] As can be seen from the above, the roll chart RM3 in this embodiment displays data related to quality or defects in a specific shape, color, etc. on a roll chart bar synchronized with the electrode path, and can simultaneously display important data such as the loading status and loading amount of the material put into the coating process and detailed data of each point on the same roll chart bar or the same screen, thereby having the advantage of making it easier to grasp quality-related historical information at a glance during the electrode coating process.

[0572] The volume map may be stored in a computer-readable recording medium.

[0573] Computer-readable recording media include read-only memory (ROM), random access memory (RAM), compact disc ROM (CD-ROM), solid-state drives (SSD), magnetic tapes, floppy disks, and optical data storage devices, and also include those computer-readable recording media implemented in the form of carrier waves (for example, transmission via the Internet). The computer-readable recording medium may be part of the memory of the computer system or may be separate from any computer system.

[0574] Volume images can be stored in Figure 2In the database of the volume map generation unit shown or in a separate recording medium. The database can be, for example, a memory. Multiple memories can also be provided as needed. The memory can be a volatile memory or a non-volatile memory. As a memory of a volatile memory, RAM, dynamic RAM (DRAM), static RAM (SRAM), etc. can be used. As a memory of a non-volatile memory, ROM, programmable ROM (PROM), electrically variable ROM (EAROM), erasable programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), flash memory, etc. can be used. The examples of memories listed are merely illustrative and are not limited to these embodiments. Alternatively, the recording medium can be a hard disk, a CD-ROM, a universal serial bus (USB) memory, an SSD, etc.

[0575] The roll map and related data stored in the recording medium can be freely used for battery manufacturing, quality control, analysis and problem tracking.

[0576] Modes for Carrying Out the Invention

[0577] When a fracture or defect occurs in an electrode during the electrode manufacturing process, there is a case where the fracture or defective portion is removed and the fractured electrode is connected with a connecting tape. Alternatively, there is a case where the beginning or end portion of the electrode with uneven quality is removed to maintain the quality of the electrode. In this case, after removing and connecting the electrode, the operator arbitrarily inputs the length of the cut electrode (the amount of missing electrode) into a controller, etc. However, since the operator manually measures the amount of missing electrode with the naked eye or a measuring tool such as a ruler and inputs the amount of missing electrode, the actual amount of missing electrode quoted is inaccurate. In addition, the amount of missing electrode input by each operator is different.

[0578] In this case, electrode breakage and connection can be confirmed in subsequent processes by inspecting the connection band. However, since the amount of electrode missing depends on operator input, it may not be possible to accurately identify the amount of electrode missing. If the amount of electrode missing is inaccurate, the position coordinates of the electrode will change during subsequent processes, making it difficult to accurately perform subsequent processes at the desired location. Furthermore, since the standard used to compare and analyze quality variations between detailed processes in the electrode manufacturing process changes depending on the amount of electrode missing, reliable quality comparison based on electrode position may not be possible.

[0579] Furthermore, recently, a roll diagram has been used that displays quality or defect data on a roll diagram bar displayed on a screen by simulating an electrode in a roll-to-roll state. Since such a roll diagram is created for each sub-electrode manufacturing process, such as coating, rolling, and slitting, the roll diagram information is downloaded and, in subsequent processes, information regarding quality defects or electrode breakage from previous processes is checked to remove the defects or take necessary subsequent measures. However, if the amount of missing electrode is not accurately identified, as described above, the data regarding the electrode position displayed on the roll diagram changes, and thus the data regarding the quality or defect location may not be accurately displayed. When the roll diagram is referenced in subsequent processes, there is a risk that the subsequent process will be performed based on incorrect position coordinates.

[0580] Therefore, in the electrode manufacturing process, it is necessary to develop a technology that can accurately measure the amount of electrode missing.

[0581] Figure 9 Schematic diagram showing the situation where position coordinates are distorted when a missing electrode is present in the absence of a reference point.

[0582] Figure 9 The figure above shows a roll map RM that simulates the movement of an electrode moving between an unwinder UW and a rewinder RW in a roll-to-roll state. A plurality of detailed data on quality or defects are intuitively displayed together on the actual roll map RM, but for ease of description, Figure 9 Only the electrode break and the connecting strip D are shown.

[0583] Figure 9 The reel RM in the figure above simulates an actual electrode, in which several types of fractures occur. During one of the detailed electrode manufacturing processes, an electrode fracture occurred, with fractures at 50 and 60 meters shown on the reel RM. Furthermore, the reel RM shows a case where the beginning of the electrode, at 30 meters, was removed in a previous process before entering this process, and the end of the electrode, at 35 meters, was removed during this process.

[0584] In this case, when the broken portions of the start and end portions of the electrode or the electrode removal portions (electrode missing portions) are removed, only the connection band D for connecting the broken portions is left, as shown in FIG. Figure 9 As shown in the figure below. That is, Figure 9 The actual electrode form is shown in the figure below. Figure 9In the figure below, for example, the position of the connecting tape D can be detected by, for example, a joint detection sensor. However, since no broken or removed electrode remains in the actual electrode, it is impossible to identify the missing amount of the electrode, which is the length of the electrode removal portion (missing portion). As mentioned above, since the operator manually inputs information about the electrode removal portion, it is difficult to know the exact missing amount of the electrode.

[0585] In addition, when the missing amount of the electrode cannot be identified, the roll map RM of the electrode manufacturing process also has the following characteristics: Figure 9 As shown in the figure below, the position coordinates on the roll map also deviate. Figure 9 In the above figure, for the convenience of description, the connecting tape is also shown together, because it is assumed that the broken / removed length of the electrode is known, and when the electrode is actually missing, the roll diagram has the following characteristics: Figure 9 The form shown in the figure below.

[0586] That is, in the roll map RM, the movement of the electrode is simulated, and the longitudinal dimension corresponds to the dimension of the electrode in the longitudinal direction (i.e., the position coordinates are displayed). If the amount of electrode missing is not identified, the amount of electrode missing cannot be reflected in the longitudinal dimension. Therefore, when the electrode is transferred to a subsequent process of the electrode manufacturing process or other detailed processes of the electrode manufacturing process, it is difficult to use the roll map in which the amount of electrode missing is not reflected. That is, it is necessary to correct the position coordinates by displaying or reflecting the amount of electrode missing in the roll map RM and also reflecting the amount of electrode missing in the longitudinal dimension (position coordinates) of the roll map.

[0587] Figure 10 is a view illustrating the concept of the present disclosure of preventing position coordinate distortion by introducing a reference point.

[0588] exist Figure 10 In the scroll image RM in the lowermost part of FIG, reference points M1, M2 and M3 are introduced at predetermined intervals, and the electrode missing portion is shown. The number and interval of reference points M1, M2 and M3 may be applied differently depending on the length or specification of the electrode. Figure 10 In FIG, it is assumed that the electrode has a length of 1200 meters, and reference points M1, M2, and M3 are displayed at points of 300, 600, and 900 meters, respectively. When the reference points M1, M2, and M3 are marked on the actual electrode and these reference points are actually measured when an electrode is missing, the intervals between the reference points change, so the electrode missing can be easily identified based on the changed values. As described above, when an electrode missing is identified, the reference points M1, M2, and M3 can be displayed together with the length of the electrode missing, as shown in FIG. Figure 10As shown in the roll diagram RM in the lowermost part of . As will be described below, the longitudinal size (absolute coordinate) of the electrode in which the missing length is reflected and the longitudinal size (relative coordinate) of the electrode in which the missing length is not reflected can be displayed together on one roll diagram.

[0589] As described above, when reference points are introduced to the electrodes, the amount of electrode loss can be identified by comparing the positions of the reference points before the change (the positions of the set reference points) with the positions of the measured reference points reflected on the roll diagram based on the change in the spacing between the reference points. The measurement of electrode loss using reference points will be described in detail.

[0590] <Equipment and method for measuring electrode missing amount>

[0591] Figure 11 is a schematic diagram of an electrode missing amount measuring device according to one embodiment of the present disclosure.

[0592] The electrode missing amount measuring device 300 according to the present disclosure includes: an electrode 1, which is conveyed between an unwinder UW and a rewinder RW in a roll-to-roll state, and a plurality of reference points M1, M2 and M3 are marked thereon at predetermined intervals between the starting part and the ending part of the electrode 1; a reference point measuring device 310, which is used to detect the reference points marked on the electrode; a position measuring device 320, which is used to derive the coordinate value of the electrode according to the rotation amount of the unwinder UW or the rewinder RW, and when the reference point measuring device detects the reference point, cooperates with the reference point measuring device to derive the coordinate value of the corresponding reference point; and a calculator 330, which is used to calculate the missing amount of the electrode by comparing the derived coordinate value of the reference point with the coordinate value of the set reference point when the interval between the reference points between the starting part and the ending part of the electrode changes from the set reference point coordinate value due to the missing of a part of the electrode.

[0593] In the electrode missing amount measuring device 300 according to the present disclosure, a plurality of reference points M1, M2 and M3 are marked on the electrode 1 at predetermined intervals between the starting part and the ending part of the electrode. As described above, the number and intervals of the reference points can be applied differently according to the length or specification of the electrode. The reference points can be marked by a predetermined reference point marker 350. For example, an inkjet ink marking printer can be used as a reference point marker. Since the electrode manufacturing process includes multiple processes of a coating process, a rolling process and a slitting process, the electrode needs to be marked first before measuring the missing amount of the electrode. To this end, the reference point marker 350 can be installed before the unwinder UW that performs the corresponding process, and a plurality of reference points M1, M2 and M3 can be marked on the electrode at predetermined intervals. For visibility, the marking of the reference points may not be performed on the coated part 1a to which the active material of the electrode 1 is applied, but may be performed on the uncoated part 1b to which the active material is not applied, and may be performed on the upper surface or the lower surface of the uncoated part or on both the upper surface and the lower surface (see Figure 15 ).

[0594] In addition, according to the present disclosure, a reference point measuring device 310 for detecting a reference point on an electrode is provided. The reference point measuring device 310 may be an optical character recognition (OCR) reader capable of reading printed characters. Alternatively, a visual camera capable of detecting a reference point by including a visual sensor may be used as the reference point measuring device. Figure 11 As shown, the reference point measurement device can be installed above the electrode 210 line that is conveyed in a reel-to-reel state.

[0595] The position measuring device 320 can derive the coordinate value of the electrode based on the rotation amount of the unwinder UW or the rewinder RW. For example, the rotary encoders 320R and 330U can be used as position measuring devices to extract the coordinate value of the electrode from the rotation amount of the motors that drive the unwinder UW and the rewinder RW, respectively. Since the electrode unwound from the unwinder UW is wound around the rewinder RW, the coordinate values ​​of the electrode derived from the rotary encoders 320R and 330U installed in the unwinder UW and the rewinder RW, respectively, can be the same. Regardless of which rotary encoder is used, the position of the electrode can be changed into a digital signal based on the rotation amount of the motor, and the coordinate value can be derived as a numerical value. In the present disclosure, since the position measuring device 320 is linked to the reference point measuring device 310, when the reference point measuring device 310 detects a reference point, the position measuring device 320 can derive the position value of the corresponding reference point. Figure 11 The reference point measurement device 310 is shown connected to the position measurement device 320, and when the signal detected by the reference point measurement device is transmitted to the position measurement device, the position measurement device 320 automatically derives the coordinate value of the reference point. The reference point measurement device can be connected to the position measurement device by wire or wirelessly.

[0596] The present disclosure includes a calculator 330 for calculating the amount of electrode missing by comparing the derived coordinate value of the reference point with the set reference point coordinate value when the interval between the reference points between the starting portion and the ending portion of the electrode changes from the set reference point interval due to the missing of a part of the electrode 1. The calculator 330 can be, for example, a controller (PLC) for controlling the transmission of the electrode between the unwinder UW and the rewinder RW. Alternatively, the calculator can also be a roll map generation unit to be described below. The calculator 330 can include a predetermined calculation program and calculate the amount of electrode missing by comparing the coordinate value of the reference point obtained by the position measuring device 320 with the set reference point coordinate value. To this end, the calculator 330 can include a memory in which the set reference point coordinate value is stored, or the memory reads data about the set reference point coordinate value from a database.

[0597] like Figure 9 and Figure 10 As shown, when an electrode is missing due to a break or arbitrary removal of the electrode, the position of the reference point changes from the position of the reference point initially marked (the set reference point coordinate value). Therefore, the calculator 330 can calculate the amount of electrode missing based on the above facts. When describing the method for measuring the amount of electrode missing according to the present disclosure, the detailed missing amount calculation process will be described in detail.

[0598] The electrode missing amount measuring device 300 according to the present disclosure may further include a joint detection sensor 340 for detecting a connecting belt attached to the electrode. The connecting belt is a belt used to connect a broken electrode when a break occurs in the electrode. When only the joint detection sensor 340 is installed without a reference point, the joint detection sensor can identify the presence of a break in the electrode by detecting the connecting belt. However, the length of the electrode break cannot be identified. As described above, in the present disclosure, a reference point measuring device 310, a position measuring device 320, and a calculator 330 are provided so that the length of the broken electrode can be identified.

[0599] Similar to the reference point measuring device 310, the position measuring device 320 is linked to the joint detection sensor 340, so that the length of the connecting belt can be derived when the joint detection sensor 340 detects the connecting belt. Specifically, the joint detection sensor 340 can detect each of the starting part and the ending part of the connecting belt, and when the position measuring device 320 receives each detection signal, the position measuring device can detect the coordinate value of the time point of detecting the starting part and the coordinate value of the time point of detecting the ending part. Since the difference between the coordinate value of the time point of detecting the starting part and the coordinate value of the time point of detecting the ending part becomes the length of the connecting belt, the length of the connecting belt can be identified with the help of the position detection performed by the position measuring device 320. The joint detection sensor 340 can be, for example, a color sensor. Since the color of the connecting belt is generally different from the color of the electrode, the connecting belt as a part whose color is different from the color of the electrode can be detected by the color sensor.

[0600] In addition to the adhesive tape for connecting the electrodes, the connection tape may further include a polyethylene terephthalate (PET) film, which extends over a relatively longer area than the adhesive tape and connects the electrodes.

[0601] When the connection band is detected in addition to the reference point, the calculator 330 calculates a total missing amount by adding the length of the connection band to the missing amount calculated by comparing the coordinate value of the reference point with the set reference point coordinates.

[0602] The method for calculating the missing amount of an electrode according to the present disclosure includes: marking a plurality of reference points at predetermined intervals between the starting part and the ending part of an electrode conveyed in a roll-to-roll state between an unwinder UW and a rewinder RW; deriving coordinate values ​​of the reference points by detecting the reference points on the electrode by a reference point measuring device; and calculating the missing amount of the electrode by comparing the derived coordinate values ​​of the reference points with the set reference point coordinate values ​​when the interval between the reference points between the starting part and the ending part of the electrode changes from the set reference point interval due to the missing of a part of the electrode.

[0603] As described above, before detecting the reference points, a plurality of reference points are marked at predetermined intervals between the start and end portions of the electrode by the reference point marker 350 (see Figure 11 ).

[0604] The reference point measurement device 310 (such as a visual camera) can detect the reference point on the electrode, and the coordinate value of the reference point can be derived by, for example, the position measurement device 320 linked to the reference point measurement device. When the electrode is not missing, the derived reference point coordinate value can be the same as the set reference point coordinate value.

[0605] However, when the length of the electrode becomes less than the length of the electrode originally wound around the unwinder UW due to breakage or arbitrary removal, the interval between the reference points between the starting and ending parts of the electrode changes from the set reference point interval. In view of this change, the amount of electrode missing can be calculated by comparing the derived coordinate values ​​of the reference points with the set reference point coordinate values.

[0606] Specifically, when at least one of the interval between reference points, the interval between the reference point and the starting part of the electrode, and the interval between the reference point and the ending part of the electrode changes, the missing amount of the electrode can be calculated by comparing the derived coordinate value of the reference point and the set reference point coordinate value.

[0607] Figure 12 An embodiment of measuring the missing amount of an electrode according to the present disclosure is shown.

[0608] Figure 12 (a) shows three reference points M1, M2, and M3 marked at 300-meter intervals on an electrode without any missing parts. The electrode is 1200 meters long, and a rewinder RW and an unwinder UW are installed at the beginning and end of the electrode, respectively, and the electrode is transported in a reel-to-reel state. For ease of description, the side of the electrode wound by the rewinder RW is considered to be the beginning of the electrode, and the side of the electrode unwound from the unwinder UW is considered to be the end of the electrode. The description is based on the electrode moving from the unwinder UW to the rewinder RW.

[0609] Figure 12 (b) shows a state in which the operator arbitrarily removed 100 meters of the electrode in the previous process. In this case, the first reference point M1 of the electrode wound around the rewinder RW is pulled from 300 meters to 200 meters (this is detected by the reference point measuring device 310), and 200 meters as the coordinate value of the first reference point M1 is derived by the rotary encoder installed in the rewinder RW. Since the starting part of the electrode is reduced by 100 meters, the positions of the subsequent second reference point M2 and the third reference point M3 are also changed from 600 meters to 500 meters and from 900 meters to 800 meters, respectively. Figure 12 In FIG, the numbers in italics indicate the changed coordinate values ​​of the reference point. The same applies to the following description. In addition, the position of the end portion of the electrode detected by the unwinder UW also changes from 1200 meters to 1100 meters.

[0610] The position measuring device 320 transmits data on the coordinate value of the reference point changed as described above to the calculator 330, and the calculator 330 calculates the missing amount of the electrode by comparing the set reference point coordinate values ​​(300, 600, and 900) with the derived coordinate values ​​(200, 500, and 800) of the reference point. Figure 12In (b), since the distance between the beginning of the electrode and the first reference point M1 decreases from 300 meters to 200 meters, the missing amount of the electrode can be calculated as 100 meters. Furthermore, the missing location can be specified between the beginning of the electrode and the first reference point M1. However, since no connecting band is detected between the beginning of the electrode and the first reference point M1, it can be estimated that the missing amount is not caused by a broken electrode. Of course, in order to detect the connecting band, the joint detection sensor 340 described below is required.

[0611] Figure 13 Another embodiment of electrode missing amount measurement according to the present disclosure is shown.

[0612] and Figure 12 Compared with (b), Figure 13 (a) shows that the electrode is missing for 100 meters at the end of the electrode. In this case, the position measuring device 320R (rotary encoder) installed in the rewinding machine RW does not recognize the change of the reference point.

[0613] However, the fact that the position of the end portion is reduced by 100 meters can be recognized by the rotary encoder 320U on the unwinder UW side, so the calculator 330 can deduce that the interval between the end portion of the electrode and the third reference point M3 is reduced to 200 meters. Therefore, since the position of the third reference point M3 is changed from the set reference point coordinate value based on the rotary encoder 320U of the unwinder UW, the calculator 330 can calculate that the end portion of the electrode has an electrode missing of 100 meters.

[0614] Figure 13 (b) shows that the electrode loss occurs in the middle of the electrode rather than at the beginning or end. When a 100-meter electrode loss occurs between the first reference point M1 and the second reference point M2 due to, for example, an electrode breakage, the coordinate value of the first reference point M1 does not change, but the positions of the second reference point M2, the third reference point M3, and the end of the electrode change. When the coordinate value of the reference point changed due to this change in the reference point is derived by the reference point measurement device 310 and the position measurement device 320 linked to the reference point measurement device 310, the calculator 330 can calculate that the electrode loss between the first reference point and the second reference point has changed to 100 meters by comparing the changed coordinate value of the reference point with the set reference point coordinate value.

[0615] Therefore, according to the method of measuring the electrode missing amount disclosed in the present invention, when at least one of the interval between reference points, the interval between the reference point and the starting part of the electrode, and the interval between the reference point and the ending part of the electrode changes, the electrode missing amount can be calculated by comparing the derived coordinate value of the reference point and the set reference point coordinate value.

[0616] Figure 14 Another embodiment of electrode missing amount measurement according to the present disclosure is shown.

[0617] This embodiment illustrates a situation where a connecting band D exists on an electrode due to electrode breakage. In this case, reference point measurement device 310 and position measurement device 320 detect that the second reference point M2 and the third reference point M3 have changed from 600 meters to 550 meters and from 900 meters to 850 meters, respectively. Therefore, it is first assumed that there is a 50-meter electrode gap between first reference point M1 and second reference point M2.

[0618] Furthermore, joint detection sensor 340 and position measurement device 320 detect that the length of connecting tape D is 50 meters. This means that due to the electrode breakage, the broken electrode was cut off and connected with a 50-meter length of connecting tape D. Therefore, the actual amount of electrode breakage is obtained by adding the 50-meter length of connecting tape D to the aforementioned 50 meters. That is, when calculating the coordinate value of the reference point using the set reference point coordinate value, calculator 330 calculates the total amount of electrode breakage by adding the missing amount calculated by comparing the reference point coordinate value with the set reference point coordinate value to the length of connecting tape D.

[0619] The length of the connecting belt can be calculated before or after deriving the coordinate value of the reference point. For example, when the reference point measurement device 310 is installed before the joint detection sensor 340, the length of the connecting belt can be calculated after deriving the coordinate value of the reference point. When the joint detection sensor 340 is installed before the reference point measurement device 310, the length of the connecting belt can be calculated first.

[0620] Figure 15 is a schematic diagram showing how the reference point changes due to the rolling process.

[0621] As described above, the electrode manufacturing process includes an electrode coating process of coating a current collector with an electrode slurry, a rolling process of rolling the coated electrode by a press roller, and a slitting process of cutting the rolled electrode in a longitudinal direction.

[0622] For example, when undergoing a rolling process after marking a reference point in an electrode coating process, the electrode is elongated at a predetermined rate. Figure 15The figure below shows the elongation of electrode 210. When electrode 210 elongates, reference points M1, M2, and M3 also elongate at a predetermined rate. When the reference point position changes, the amount of electrode missing needs to be calculated based on the changed reference point in the process after rolling. That is, during the electrode coating process, the amount of electrode missing is calculated based on the initial first to third reference points M1, M2, and M3, but after rolling, the amount of electrode missing should be calculated based on the changed first to third reference points M1', M2', and M3'. In this case, for the reference points M1', M2', and M3' that have changed due to rolling, data regarding the set reference point coordinate values ​​associated with the changed reference points are also stored in a database, memory, etc. Therefore, when a missing portion occurs in the electrode after the rolling process, the missing portion can be determined based on the changed reference point compared to the data regarding the set reference point coordinate values. The set reference point coordinate values ​​reflecting the rolling are pre-set based on the rolling pressure, the length of the elongated electrode, etc. and stored in a database, etc.

[0623] Figure 16 FIG. 4 is a schematic diagram of an electrode missing amount measuring device 300 ′ according to another embodiment of the present disclosure.

[0624] This embodiment describes a rolling operation in which an electrode 1 that has undergone an electrode coating process is wound around an unwinder UW of a rolling process and conveyed to a rewinder RW. In this embodiment, a pressure roller R for rolling is provided, which is installed above and below the middle portion of the electrode conveyed in a roll-to-roll state. Therefore, the electrode is elongated after being rolled by the pressure roller R, thereby changing the reference point on the electrode. In this case, since the positions of the reference points before and after the pressure roller R can be different from each other, a first reference point measuring device 310A can be provided before the pressure roller, and a second reference point measuring device 310B can be provided after the pressure roller, which is used to detect the reference point changed due to the rolling of the pressure roller R.

[0625] Therefore, the calculator 330 can calculate the amount of electrode missing before rolling based on the coordinate values ​​of the reference points detected by the first reference point measuring device 310A, and calculate the amount of electrode missing after rolling by the roller R based on the coordinate values ​​of the changed reference points detected by the second reference point measuring device 310B. In this embodiment, since the process of comparing the derived coordinate values ​​of the reference points with the set reference point coordinate values ​​is the same as in the above embodiment, a detailed description of the calculation of the electrode missing amount will be omitted in this embodiment, except for the change in the coordinate values ​​of the reference points or the intervals between the reference points due to rolling.

[0626] Figure 16The embodiment shows that the reference point changes in one process, but when the electrode is rolled by the roller R and thus the position of the reference point changes, the method of measuring the missing amount of the electrode is applied even after the rolling process (i.e., the missing amount of the rolled electrode is calculated based on the changed reference point). For example, even in Figure 16 After the rolling process, the electrode coil is separated from the rewinder RW and the electrode coil is wound by the unwinder UW in the slitting process (which is a subsequent process). Figure 15 When the slitting process is performed as shown, the missing amount of the electrode in the slitting process is also calculated based on the changed reference point. Figure 16 In the electrode coating process before the process, the missing amount of the electrode is calculated based on the reference point before rolling.

[0627] As described above, according to the present disclosure, the amount of electrode missing can be automatically and accurately calculated using a reference point by a predetermined device for measuring the amount of electrode missing. Therefore, the reliability of electrode missing data can be improved and such data information can be effectively utilized in subsequent processes.

[0628] In addition, according to the present disclosure, as will be described below, by displaying a reference point on a roll graph of a simulated electrode and also displaying information about the amount of electrode missing on the roll graph, data about quality or defects can be intuitively and easily identified at a glance relative to the reference point.

[0629] Figure 17 One embodiment of a roll diagram of an electrode manufacturing process according to the present disclosure is shown.

[0630] The roll map RM4 according to the present disclosure includes a roll map bar 360 and a plurality of reference points M1, M2 and M3, the roll map bar 360 is displayed on the screen synchronously with the movement of the electrode moving in the roll-to-roll state between the unwinder UW and the rewinder RW and is displayed in a bar shape simulating the electrode in the roll-to-roll state, and the plurality of reference points M1, M2 and M3 simulate the plurality of reference points marked on the electrode at predetermined intervals and displayed on the roll map bar at predetermined intervals.

[0631] The roll map according to the present disclosure includes a plurality of reference points M1, M2, and M3, which simulate a plurality of reference points marked at predetermined intervals between the start and end portions of the electrode and displayed on the roll map at predetermined intervals. Figure 17 As shown, reference points M1 , M2 , and M3 , which are simulated reference points (which are actually marked on the electrodes), may be displayed on the scroll bar 360 at a predetermined scale.

[0632] In this case, the reference points M1 , M2 and M3 may also be represented by the longitudinal dimensions of the electrodes.

[0633] The missing amount measured by the apparatus and method for measuring the missing amount of an electrode using a reference point can also be displayed on the roll map RM4 according to the present disclosure. That is, the position coordinates (position data) reflecting the missing amount and the position coordinates not reflecting the missing amount can be displayed on one roll map. Figure 17 , the position coordinates 370 (longitudinal dimension) that do not reflect the amount of missing electrodes are displayed as absolute coordinates 371. In addition, the position coordinates 370 that reflect the amount of missing electrodes are displayed as relative coordinates 372. Therefore, with reference to the roll image RM4 according to the present disclosure, the missing electrodes in the previous process or the current process can be identified at a glance. In addition, since the coordinates that reflect the amount of missing electrodes and the coordinates that do not reflect the amount of missing electrodes are displayed at the same time, when the subsequent process is performed with reference to the roll image of the previous process, the coordinates will not be distorted, so the subsequent process can be accurately performed at the desired position.

[0634] In addition, the roll map RM4 further includes a display unit 380 for displaying at least one data on quality, defects, and electrode missing measured in the electrode manufacturing process at a predetermined position on the roll map bar 360 corresponding to a position of the electrode where at least one data has been measured. Figure 17 , data 381 about the quality of the electrode (for example, data about the amount of electrode missing), data 382 about defects (for example, defect data such as pinholes, lines, etc.) and data 383 about electrode missing (data about the outermost discarded interval) are all displayed on the roll map bar 360. Therefore, information about the quality, defects and electrode missing of the electrode in the process can be identified at a glance. In fact, in addition to the outermost discarded interval, electrodes with defects and electrodes that do not meet the quality standards are also deleted, and the electrodes left after removal are connected to the connecting belt D, etc., so electrode missing also appears in these parts. In the roll map RM4, all these electrode missings are reflected using relative coordinates 372. Therefore, by comparing the relative coordinates 372 and the absolute coordinates 371 of the roll map RM4, the length of the electrode missing can be identified. In this case, the amount of electrode missing can be more easily calculated with reference to the reference points M1, M2 and M3 displayed on the roll map.

[0635] For reference, the display Figure 17 On the RM4's roll graph screen, items related to quality, defects, and missing electrodes are displayed at a glance. Therefore, by referring to these items and the roll graph, you can easily identify visual data related to the item.

[0636] at the same time, Figure 17The coil diagram RM4 is a coil diagram in the electrode coating process, but a coil diagram may be made for each of the rolling process and the slitting process. In this case, events occurring in each process, etc. can be easily identified by comparing the coil diagrams of each process. In addition, when generating a coil diagram of a subsequent process, the coil diagram of the previous process can be referred to and used. In this case, in the coil diagram of the process after rolling by the press roller, a reference point simulating the position of the reference point changed by rolling should be displayed on the coil diagram bar. That is, as Figure 15 and Figure 16 As shown, when the position of the reference point changes due to the rolling process, in the coil diagram of the rolling process and the subsequent slitting process, distortion in the position coordinates of the coil diagram can be prevented only when the changed position of the reference point is simulated and displayed on the coil diagram.

[0637] Figure 18 2 is a schematic diagram illustrating a roll map generating device according to the present disclosure.

[0638] According to an embodiment of the present disclosure, the roll diagram generating device 400 includes: a reference point measuring device for checking the electrode 401 moving between the unwinder UW and the rewinder RW, and detecting the reference point marked on the electrode; a position measuring device for deriving the coordinate value of the electrode according to the rotation amount of the unwinder or the rewinder, and deriving the coordinate value of the reference point; and a roll diagram generating unit for generating a roll diagram bar simulating the moving electrode, and displaying the missing amount of the electrode calculated by comparing the derived coordinate value of the reference point with the set reference point coordinate value on the roll diagram bar.

[0639] For ease of description, Figure 18 , a state in which a current collector is coated with an electrode active material by a coater C to manufacture an electrode and a state in which the electrode is rolled by a press roller R in an electrode coating process are shown together on one electrode line between an unwinder UW and a rewinder RW.

[0640] However, as mentioned above, in practice, electrode coating is performed on separate unwinders (UW) and rewinders (RW). Separate reference point measurement devices and joint detection sensors are installed, and a roll map of the electrode coating process is created during the corresponding process. When the electrode coating process is completed, the electrode roll is moved from the rewinder (RW) for the electrode coating process to the unwinder (UW) for the rolling process.

[0641] However, due to Figure 18 This is to fully describe the process of generating a roll diagram of the electrode manufacturing process. Therefore, unlike the actual process, the electrode coating coater C and the rolling roller R of the rolling process are shown on one electrode only for the convenience of description. Figure 18When the coater C is removed, it is a system for generating a roll diagram of the rolling process, and when the press roller R is removed, it is a system for generating a roll diagram of the electrode coating process. Therefore, it should be understood that the electrode manufacturing process is not actually like Figure 18 Do as in.

[0642] When the electrode roll is installed in a roll-to-roll state between the unwinder UW and the rewinder RW before the electrode coating process, an electrode roll information registration operation is preferably performed. This operation involves inputting data regarding the electrode roll's specifications (including the electrode roll's lot number) into a server or roll image generation unit 420. For example, when the electrode roll is introduced to the unwinder UW or installed between the unwinder UW and the rewinder RW, detailed data including the electrode roll's lot number can be input into a server, etc. Once the electrode roll information is registered, detailed electrode (roll) data (such as the lot number, process, and equipment) can be loaded from the server and displayed on the screen along with the roll image strip. Furthermore, since the length and width specifications of the electrode roll can be identified from the detailed electrode roll data, when the roll image strip is generated by a data processing system (e.g., an MES), the shape and size of the roll image strip can be determined in a predetermined ratio proportional to the length and width of the electrode. That is, based on the conversion ratio stored in the MES, etc., the shape and size of the roll image strip corresponding to the length and width of the electrode roll can be displayed on the screen.

[0643] At the same time, in order to generate the roll map according to the present disclosure, data on electrode missing in the electrode manufacturing process and data on reference points marked on the electrode should be obtained, and data on the position of the electrode for which data is obtained should also be available. In addition, data on quality or defects can also be obtained as needed.

[0644] Such data can be obtained by examining the electrode 1 as it moves during the electrode manufacturing process.

[0645] After coating or rolling, the electrode 1 is inspected by a predetermined inspection and / or measuring device 410 installed on the electrode conveyor line. For example, the conveyor line may be equipped with inspection and / or measuring devices such as an electrode slurry loading amount measuring device 411, a size and width measuring device 412, and an appearance inspection device 413. As the electrode slurry loading amount measuring device 411, a non-contact thickness measurement sensor (such as an ultrasonic sensor, a displacement sensor, a laser sensor, or a confocal thickness sensor) may be used.

[0646] As described above, data on the reference point marked on the electrode can be acquired by the visual measuring device, and the coordinate value of the reference point can be detected by the position measuring device installed in the unwinder UW or the rewinder RW and transmitted to the roll map generation unit 440. The calculator 330 related to measuring the missing amount of the electrode can be a component of the roll map generation unit (specifically, the data processing system 420) or the system. That is, the missing amount of the electrode can also be determined by Figure 18 The acquired data on electrode missing and reference point can be directly transmitted from the rotary encoders 420U and 420R as position measuring devices to the roll map generation unit 440 or transmitted to the roll map generation unit 420 via the inspection and / or measurement device 410. Alternatively, a PLC for controlling the transfer of electrodes between the unwinder and the rewinder can be connected to the roll map generation unit 440, and the PLC can transmit the missing data and reference point data to the roll map generation unit 440.

[0647] As described above, when data is acquired by various measuring devices, the data is transmitted to the volume map generation unit 440. In this case, although not shown, a server may be used for data storage. Alternatively, the volume map generation unit 440 may have a predetermined storage device to store data.

[0648] like Figure 18 As shown, in addition to the visual inspection device, the encoder of the rewinder RW is also connected to the load measurement device 411 and the size and width measurement device 412, so that data can be exchanged to obtain the longitudinal position data of the electrode whose load has been measured, as well as information about the load and size / width. If necessary, the encoder 420U of the unwinder UW can also be connected to the various measurement devices 410.

[0649] Meanwhile, data on electrode missing and data on reference points marked on the electrodes may be visualized as a roll map together with other data on quality or defects by the data visualization device 443 installed in the roll map generation unit 440 and displayed on the display unit 450 .

[0650] As described above, according to the present disclosure, by displaying a reference point on a roll graph and displaying information on the missing amount of an electrode, data on quality or defects can be intuitively and easily recognized at a glance with respect to the reference point.

[0651] In addition, since quality, defect control, and subsequent processes in each detailed process of the electrode manufacturing process can be performed with reference to the roll map showing the reference points, subsequent processes, defect removal, etc. can be accurately performed.

[0652] When the detection device captures the fact that foreign matter is mixed into the active material layer or a coating defect is generated during the electrode manufacturing process, the defect can traditionally be removed in the current coating process or a subsequent process by marking the defect on the electrode or the operator attaching a defect label.

[0653] However, due to the traditional use of physical marking processes that directly mark information about quality, defects, and so on on electrodes, once the electrodes are assembled into secondary batteries, even if a defect in the electrode manufacturing process leads to a defect in a subsequent process, it is difficult to identify the region in which the defect actually occurred. In other words, after physically marked electrodes are assembled or lost, it is difficult to analyze the quality correlation between processes within the electrode manufacturing process, as well as between the current process and subsequent processes.

[0654] Meanwhile, a technology has been proposed that identifies an operation history in units of secondary batteries by directly marking the presence of defects on secondary batteries with ink in a secondary battery assembly line after an electrode manufacturing process is completed.

[0655] However, since the existing technology involves marking after assembling the secondary battery, the history of the secondary battery assembly process and subsequent processes can be identified, but there is a limitation in that historical information on defects, etc. in the electrode manufacturing process (previous process) cannot be identified.

[0656] Therefore, there is a need for a technology that can display historical information about quality or defects to refer to quality correlation analysis and progress of subsequent processes in the correlation between detailed processes in the electrode manufacturing process and between the current process and subsequent processes in the electrode manufacturing process.

[0657] According to another aspect of the present disclosure, the roll diagram correction system 500 includes: a roll diagram generation unit 510, which is used to generate a roll diagram of a first process represented by a plane shape, on which the electrode is simulated moving between the first unwinder UW1 and the first rewinder RW1 and performing the first process thereon, and displays the inspection and / or measurement data of the electrode obtained in the first process and the coordinate value indicating the position of the electrode; and a roll diagram corrector 520, which is used to generate a roll diagram of a second process by converting the coordinates of the roll diagram of the first process in a reverse order when the electrode moves between the second unwinder UW2 and the second rewinder RW2 and performs the second process, so that the coordinate values ​​of the starting part and the ending part of the roll diagram of the first process are reversed.

[0658] Figure 19 2 is a schematic diagram illustrating a curl correction system according to another embodiment of the present disclosure.

[0659] The longitudinal dimension of the electrode 1 can be represented as coordinates at predetermined intervals on a roll diagram of a plane shape (roll diagram strip), on which the electrode 1 is simulated to be moved between the first unwinder UW1 and the first rewinder RW1 in a roll-to-roll state and to be subjected to the first process thereon. The position of the electrode (i.e., the longitudinal dimension of the electrode) can be acquired from a rotary encoder for extracting the position of the electrode (encoder value) from the amount of rotation of the motor for driving the unwinder UW1 or the rewinder RW1. Therefore, the roll diagram generation unit 510 of the first process can display the longitudinal dimension of the electrode 1 as coordinate values ​​at predetermined intervals on the roll diagram (see Figure 20 ). In addition, the roll map generation unit 510 generates a roll map that displays the inspection and / or measurement data of the electrode 1 acquired in the first process at the coordinate value corresponding to the position of the electrode 1 for which the inspection and / or measurement data has been acquired. For example, since the position measurement device 20 and the inspection and / or measurement device 10 can be linked, the inspection and / or measurement device 10 acquires the inspection and / or measurement data as well as the data of the coordinate value of the electrode for which the inspection and / or measurement data has been acquired. Alternatively, the inspection and / or measurement data can be matched with the data of the coordinate value with the help of a controller. The roll map generation unit 510 generates the roll map by marking the data on the roll map.

[0660] The roll map correction system 500 according to the present disclosure converts and corrects coordinates of a roll map of a first process to apply the roll map made in the first process to a second process.

[0661] That is, Figure 19 As shown, the reel diagram is made based on the electrode moving between the unwinder UW1 and the rewinder RW1 of the first process in the reel-to-reel state. For example, the first process can be as follows Figure 19 The electrode coating process shown. Electrode 1 is coated with electrode slurry by coater C and inspected by inspection and / or measurement device 10. The electrode is then wound by rewinder RW1 in the first process. In this case, the encoder values ​​of unwinder UW1 and rewinder RW1 can be assigned as coordinate values ​​and transmitted to reel map generation unit 510 via controller 30. Inspection data acquired by inspection and / or measurement device 10 can also be transmitted to reel map generation unit 510 via controller 30 along with the coordinate data.

[0662] The present disclosure is characterized in that the roll map generated by the roll map generation unit 510 for the first process is corrected to a roll map for the second process that can be referenced in the second process. The roll map corrector 520 generates a roll map for the second process by acquiring the roll map of the first process from the roll map generation unit 510 and converting the roll map of the first process in reverse order so that the coordinates of the start and end portions of the roll map are reversed.

[0663] Figure 20 This conversion and correction is well illustrated in .

[0664] Figure 20 FIG. 1 is a schematic diagram illustrating an embodiment of changing the coordinates of a roll map by using a roll map correction system according to the present disclosure.

[0665] Figure 20 (a) is a roll diagram for the first process (electrode coating process). The length of electrode 1 is 1200 meters, and reference points M1, M2, and M3 are shown at 300, 600, and 900 meters, respectively. In addition, the electrode defect interval NG (e.g., appearance defect) is shown at a point between 400 and 500 meters. However, the roll diagram of the first process with these coordinate values ​​may not be directly applicable to the second process. This is because the portion with a coordinate value of zero on the roll diagram of the first process is the beginning of the first process, but is first wound around the rewinder RW of the first process and positioned inside the electrode roll, so it becomes the end of the electrode 1 when it is unwound from the unwinder UW of the second process. Conversely, the point at 1200 meters (which is the last portion wound around the rewinder RW of the first process) is the end of the first process, but becomes the beginning of the electrode 1 when it is unwound from the unwinder UW of the second process. When the roll map of the first process is applied to the second process, the coordinate values ​​of the reference point and the coordinate values ​​of the defective area NG do not match the size of the actual electrode. Figure 20 As shown in (b), the conversion and correction are performed in the reverse order so that the coordinate value (0) of the starting part of the roll diagram of the first process becomes the coordinate value (1200) of the ending part thereof, and the coordinate value (1200) of the ending part becomes the coordinate value (0) of the starting part thereof. Therefore, for M3, the coordinate value of the reference point of the roll diagram of the first process also changes from 900 meters to 300 meters, and for M1, the coordinate value of the reference point of the roll diagram of the first process changes from 300 meters to 900 meters. In addition, the coordinate value of the defect interval NG is also converted from 400 to 500 meters to 700 to 800 meters. As shown in FIG. Figure 20 As shown in (b), the roll image of the second process can be made by performing corrections in the reverse order.

[0666] When a portion of the electrode tip is removed after the first process ends and before the second process begins, the coordinates of the roll diagram need to be corrected to reflect this. Because the electrode tip often has uneven quality, removing a portion of the electrode tip after a specific process is complete is called "post-removal," as opposed to removing the electrode during the process.

[0667] Figure 21 FIG. 2 is a schematic diagram illustrating another embodiment of changing the coordinates of a roll map by using the roll map correction system according to the present disclosure.

[0668] Figure 211 is a schematic diagram showing another embodiment of changing the coordinates of the roll map by means of the roll map correction system 500 according to the present disclosure, and showing the removal after completion. That is, in the first process, the end of the electrode is removed by 50 meters, which is reflected in the roll map of the first process. The removal of the electrode end can be completed by, for example, an operator, who can input the length and coordinate values ​​of the electrode into a predetermined input device, which can transmit the data to the roll map generation unit 510, and the roll map generation unit 510 can generate the following. Figure 21 (a) is a roll diagram of the first process shown.

[0669] Alternatively, when the roll pattern of the first process is still in the state where a portion of the electrode end is removed, Figure 21 When the state shown in (a) is reached, it is necessary to perform the following steps before the second process begins. Figure 21 In this case, the coordinate values ​​of the portion of the electrode's end portion removed from the first process's roll diagram are removed (i.e., the coordinates of 1150 to 1200 meters are removed), and the coordinates are corrected in reverse order so that the coordinate values ​​of the start portion (0 meter) of the first process's roll diagram and the end portion (1150 meters) from which a portion of the electrode's end portion has been removed are reversed. Furthermore, when the coordinate values ​​of the reference point and the defect interval NG are also corrected in reverse order in the same manner, the result is as shown in FIG. Figure 21 As shown in (b) of FIG. That is, in the corrected roll image of the second process, the distance from the starting portion to the reference point M3 is 250 meters, the coordinate value of M2 is 550 meters, and the coordinate value of M1 is 850 meters. The defect interval NG also becomes 650 to 750 meters.

[0670] According to the present disclosure, the roll map of the second process can be obtained by Figure 20 (b) or Figure 21 The curling diagram corrector shown in (b) is made. Figure 19 , the roll image corrector 520 can transmit the roll image of the second process to the controller 30' of the second process for performing the second process. For example, as described below, when removing the defective area NG of the first process in the second process, the roll image of the second process can be used. Figure 19 In the figure, the second process is a rolling process, in which the electrode is rolled by rollers R, and the electrode 1 is moved in a reel-to-reel state between a second unwinder UW2 and a second rewinder RW2. Encoders 20U2 and 20R2 of the second unwinder UW2 and rewinder RW2 are both shown. A predetermined inspection and / or measurement device 10' is also shown above the electrode 1. According to the present disclosure, the reel map of the first process is appropriately corrected between the first and second processes, so that no errors are present when the second process is performed.

[0671] Figure 22is a schematic diagram illustrating removal of defects occurring in an electrode coating process in a rolling process (subsequent process).

[0672] In electrode manufacturing, defects arising from a previous process are sometimes removed during a subsequent process. For example, an electrode installed between the unwinder and rewinder in a rolling process advances in a reel-to-reel state, is rolled by a press roller, and then wound around the rewinder. An operator removes and discards any defective areas of the electrode from the previous coating process at a defect removal port installed before the press roller. In this case, the operator removes the defective area after inspecting the defect area label affixed to the electrode during the previous process.

[0673] However, the defect removal operation is actually very inconvenient because the operator needs to frequently check the tag in order to check the defect interval and slow down and stop the rolling equipment each time ( Figure 22 Case 1).

[0674] Furthermore, in the case where the operator is at a different position when the defective section of the electrode reaches the defect removal port, there is a problem that the electrode with the defective label is rolled by the press roller ( Figure 22 Case 2).

[0675] In addition, when the defective labels in the previous process are lost for some reason, the operator cannot check and remove the defective intervals ( Figure 22 Case 3).

[0676] Therefore, it is necessary to develop a technology that can easily check the history and information about a defective section in an electrode manufacturing process and easily remove an electrode having a defective section.

[0677] Figure 23 is a schematic diagram illustrating the concept of an electrode defect removal apparatus according to yet another embodiment of the present disclosure, and Figure 24 is a schematic diagram illustrating an electrode defect removing apparatus according to the present disclosure.

[0678] like Figure 21 As shown, for example, assuming that a label G is attached to a defective section NG that occurs during the electrode coating process and the defective section NG of the electrode 1 is removed during the rolling process, as shown in FIG. Figure 22 As shown, the operator needs to wait for the label G of the defective section NG until it arrives at the defect removal port. However, this waiting itself is a waste of manpower, and when the label G is lost, the operator may not be able to find the corresponding defective section NG. According to the present disclosure, when the defective section NG arrives at the defect removal port using information about the roll map of the previous process (roll map of the electrode coating process) in the second process, the electrode 1 stops or slows down or issues an alarm before arriving, so that the operator will not miss the defective section NG. Figure 23is a conceptual diagram illustrating the removal of defects using such a roll map of a prior art process.

[0679] Figure 24 is a schematic diagram illustrating an electrode defect removing apparatus according to the present disclosure in more detail.

[0680] The electrode defect removal device 600 according to the present embodiment (as a device for removing defects of an electrode that moves between a first unwinder UW1 and a first rewinder RW1 and performs a first process thereon) includes: a defect removal port 610, which is positioned between a second unwinder UW2 and a second rewinder RW2 and removes a defect interval NG of the electrode that occurs in the first process at the defect removal port 610; and a second process controller 640, which is used to control the movement of the electrode between the second unwinder UW2 and the second rewinder RW2, wherein the second process controller 640 calculates the time point when the electrode 1 with the defect interval NG arrives at the defect removal port 610 from the second unwinder UW2 based on information about the coordinates of the defect interval NG displayed on the roll diagram of the first process, and when the defect interval NG arrives at the defect removal port 610, stops the movement of the electrode in the second process so that the defect interval NG of the electrode 1 can be removed at the defect removal port.

[0681] like Figure 24 As shown, the defect removal port 610 is positioned at a predetermined position between the unwinder UW2 and the rewinder RW2 (the second unwinder UW2 and the second rewinder RW2) of the second process. Figure 24 In the rolling process shown, a defect removal port 610 is generally provided at a position between the unwinder UW2 and the press roll R. The defect removal port 610 may be a workbench for an operator to remove and discard the electrode 1 having the defective section NG, and a waste box for discarding the removed electrode 1, a winder for winding the removed electrode 1, etc. may be installed on the defect removal port 610.

[0682] In addition, the electrode defect removal apparatus 600 includes a second process controller 640 (e.g., a PLC) for controlling the movement of the electrode between the second unwinder UW2 and the second rewinder RW2. The second process controller 640 calculates the time point when the electrode 1 having the defective section NG arrives at the defect removal port 610 based on the roll map of the first process. Since the longitudinal dimension of the electrode 1 and the position of the defective section NG are represented as coordinate values ​​on the roll map of the first process, the time point when the electrode 1 having the defective section NG arrives at the defect removal port 610 from the second unwinder UW2 is calculated based on the coordinate information about the defective section NG displayed on the roll map of the first process. That is, the controller 640 can calculate the time point when the defective section NG arrives at the defect removal port 610 because it knows the distance between the starting portion of the electrode and the defective section NG and knows the rotation speeds of the unwinder UW2 and the rewinder RW2 (i.e., the conveying speed of the electrode). Here, the meaning of the information based on the coordinates of the defective section NG displayed on the roll map of the first process does not necessarily mean that the arrival time point is calculated based on the coordinates themselves, and as will be described later, it means that the coordinates can be corrected based on the information based on the coordinates of the defective section NG displayed on the roll map of the first process. That is, as described above with reference to Figure 20 and Figure 21 As described, the coordinate values ​​of the roll graphs of the previous process and the subsequent process transmitted in the roll-to-roll state have a reverse order relationship. Therefore, even in the present disclosure, in order to calculate the arrival time point of the defect interval NG, it is necessary to convert and correct the coordinate values ​​of the roll graph of the first process in the reverse order so that the coordinate values ​​of the starting part and the ending part of the roll graph of the first process are reversed. To this end, the electrode defect removal device 600 according to the present disclosure may further include a roll graph corrector 650 for performing correction, and the second process controller 640 may stop the movement of the electrode based on the coordinates of the defect interval NG displayed on the corrected roll graph. As Figure 20 As shown, the reel map corrector 650 can specify the coordinate values ​​of the defective section NG by reversing the coordinate values ​​of the reel map of the first process based on the information regarding the coordinates of the defective section NG displayed on the reel map of the first process. Therefore, the second process controller 640 can calculate the time point when the defective section NG displayed in the first process reaches the defect removal port based on the coordinate values ​​of the defective section NG and stop the movement of the electrode in the second process when the defective section NG reaches the defect removal port 610. In other words, the operation of the second unwinder UW2 and the second rewinder RW2 can be stopped.

[0683] Meanwhile, when a portion of the end portion of the electrode is removed after the first process is finished and before the second process is started, as shown in FIG. Figure 21As shown, the roll image corrector 650 can remove the coordinate value corresponding to the removed portion of the end of the electrode from the roll image of the first process, and convert and correct the coordinate value of the roll image of the first process in reverse order, so that the starting part of the roll image of the first process and the ending part of the portion of the end of the electrode removed are reversed, and the second process controller 640 can stop the movement of the electrode based on the coordinate value of the defect interval NG displayed on the corrected roll image.

[0684] In the first process, while the electrode is being moved in a roll-to-roll state between the first unwinder UW1 and the second rewinder RW2 before the second process, the corresponding process is performed, and the roll map generation unit 40 generates coordinate data as a roll map. As described above, the roll map generation unit 40 can be a data processing system (such as an MES or SPC) or a component of the system. The roll map generated by the roll map generation unit 40 can be stored in a roll map storage device 80 (such as a server or database). When storing, identification information such as the batch number of the corresponding electrode can also be stored. Therefore, for example, when scanning and acquiring identification information about electrode 1 in the unwinder UW2 of the second process, the second process controller 640 can download the roll map of electrode 1 with the identification information from the roll map storage device 80. The roll map of the electrode with the identification information is corrected by the roll map corrector 650 and transmitted to the controller 640. The controller 640 then stops the electrode 1 with the defective section NG at the defect removal port 610. In the second process, a second unwinder UW2 and a second rewinder RW2 may be installed to perform a rolling process, and a predetermined inspection and / or measurement device 630 may also be installed above the electrode. The inspection and / or measurement device 630 may be, for example, an inspection device for measuring the thickness of the electrode or a visual inspection device for identifying wrinkles.

[0685] Furthermore, the second process controller 640 can control the electrode 1 of the second process to slowly move between a predetermined time point before the defect section NG reaches the defect removal port 610 and a predetermined time period between the arrival time point. The second process controller 640 controls the electrode to slowly move, thereby providing the operator with sufficient margin to remove defects at the defect removal port 610. Alternatively, when the electrode 1 slowly moves during the second process, the operator can recognize that the defect section NG will soon reach the defect removal port 610 and move to the defect removal port. The predetermined time point or predetermined time period can be appropriately determined, taking into account the distance between the second unwinder UW2 and the defect removal port, etc.

[0686] The electrode defect removal apparatus 600 according to the present disclosure may also include an alarm unit 660 for issuing an alarm in at least one of the following circumstances: the defective section NG reaches the defect removal port 610; the electrode 1 stops during the second process; or a predetermined time has passed since the electrode stopped during the second process. If desired, the alarm can be issued when the electrode 1 begins to slowly move. When the alarm is issued when the defective section NG reaches the defect removal port or the electrode stops, the operator can remove the defective section NG.

[0687] In this case, even when the defective label G is missing, the operator can remove the defective section NG by referring to the roll map of the first process (more precisely, the roll map of the first process whose coordinates have been corrected). Since the length of the defective section NG is expressed as a coordinate value on the roll map, the defective section NG can be removed by referring to the coordinate value. Alternatively, even after a predetermined time has passed after the movement of the electrode stops, an alarm can be issued when the defect removal operation is not being performed. In this case, the operator can hear the alarm and move to the defect removal port 610 to remove the defective section. The alarm operation of the alarm unit 660 can be controlled by the second process controller 640.

[0688] As described above, according to the present disclosure, by correcting the coordinates of the roll map of the previous process, the roll map of the previous process can be used in the subsequent process without any errors. In addition, defects that occurred in the previous process can be reliably and easily removed in the subsequent process with the help of roll map information and roll map coordinate correction.

[0689] When the joint is formed in the groove process, a secondary battery is formed through an assembly process in which a separator is inserted between the positive electrode and the negative electrode to form an electrode assembly, the electrode assembly is stacked or folded, and it is packaged in a bag, can, etc., and an electrolyte is injected. Thereafter, the assembled secondary battery undergoes an activation process in which the battery characteristics are imparted by charging and discharging the secondary battery, and becomes a final secondary battery as a finished product.

[0690] Figure 25 The state of the electrode undergoing this electrode manufacturing process is shown.

[0691] The coated electrode 1 is manufactured by coating the current collector with the active material in a coater C to form a coated portion 1a. A reference point can be marked on the uncoated portion 1b, where the active material is not applied. Both the top and back surfaces of the electrode 1 are typically coated with the active material. The coated electrode 1 is rolled by rollers in a rolling process and cut longitudinally by a slitting machine in a slitting process.

[0692] Subsequently, in the slotting process, a presser or the like punches out the electrode 1 to form an electrode tab 2. During the slotting process, electrode tabs 2 are formed for each unit electrode, allowing for cutting of each unit electrode for manufacturing into a battery cell or in a subsequent process. The width of the unit electrode corresponds to the pitch P processed by the presser.

[0693] Such an electrode manufacturing process is carried out by a series of roll-to-roll processes, in which the electrode unwound from the unwinder is moved and wound around the rewinder in sequence and repeatedly. That is, the electrode is coated while moving from the unwinder of the coating process to the rewinder, and the electrode roll of the coating process is completed by winding the electrode around the rewinder. Next, the electrode roll is mounted on the unwinder of the rolling process and moved to the rewinder of the rolling process. The electrode roll is wound around the rewinder of the rolling process and is completed as an electrode roll for the rolling process. Thereafter, the electrode roll is moved again in a roll-to-roll state in the unwinder of a subsequent process (e.g., a secondary rolling process, a slitting process, or a slotting process), wound around the rewinder of the subsequent process, and completed as an electrode roll for the subsequent process. As described above, the electrode manufacturing process is configured as a series of roll-to-roll processes, in which the electrode unwound from the unwinder is moved and wound around the rewinder in sequence and repeatedly (roll-to-roll process).

[0694] The roll graph is presented as a simulated electrode progress bar, with the longitudinal and lateral positions of the electrodes indicated by coordinates on the roll graph. Information on defects, quality, electrode breakage, and other issues arising from the electrode manufacturing process is displayed along with the coordinate values ​​on the roll graph, making it easy to intuitively and easily identify quality or defects in the electrode manufacturing process at a glance.

[0695] refer to Figure 5 Surface defect information (such as pinhole defects f1 and line defects f2) is intuitively displayed at the coordinates of the defects. Furthermore, the mismatch f3 between the coated and uncoated parts is displayed. Other loading defects are also displayed, along with the discarded outermost portion of the electrode.

[0696] In addition, reference points M1, M2, and M3 marked on the electrode 1 can be displayed at predetermined intervals. When the electrode 1 is broken and the electrode 1 is connected by the joint connection member, the length of the electrode is reduced by the length of the broken electrode. As described above, the point where the appearance defect occurs is also removed, and the operator can connect the electrode. The coordinate values ​​on the roll diagram can be corrected by simulating this situation in the roll diagram. Reference Figure 5 The coordinates of the electrode removal portion that is not reflected and the coordinates of the electrode removal portion that is reflected are displayed together on a roll chart. The former is called "absolute coordinate A" and the latter is called "relative coordinate B". Figure 5As shown, the relative coordinate B and the absolute coordinate A can be displayed together on one scroll, or can be displayed separately. The scroll showing the relative coordinate B indicates the actual electrode status.

[0697] Such a roll diagram can be created for each of the detailed processes described above. However, in a roll-to-roll process, since an electrode wound in a previous process is unwound in a subsequent process, the start and end portions of the electrode are reversed by undergoing the roll-to-roll process, such that the end portion of a roll diagram showing an electrode roll from a previous process becomes the start portion of a roll diagram showing an electrode roll from a subsequent process. Furthermore, in the case of a double-sided electrode in which both surfaces are coated with electrode active material, the electrode surfaces can be reversed; for example, the top surface of an electrode from a previous process becomes the back surface of the electrode in a subsequent process. That is, the start / end reversal and surface reversal of the electrode can occur depending on the winding direction of the electrode in the previous process and the unwinding direction of the electrode in the subsequent process. Since the roll diagram for each process is created based on the reversed electrode, the coordinates of the roll diagram for each process are also reversed. Furthermore, the length of the electrode changes due to multiple cuts in the longitudinal direction of the electrode as defective or broken regions are removed and the electrode is connected through a series of roll-to-roll processes. Since the roll diagram for each process reflects these reversals and length changes, each roll diagram has different coordinate values.

[0698] In the final process of the electrode manufacturing process (e.g., the slotting process), only the remaining electrode (remaining electrode) is left, excluding the electrode portion removed in the previous process. Since batteries are manufactured with the retained electrode, when a problem occurs in a finished or semi-finished battery, the cause of the problem can be traced back to the final electrode roll diagram. In addition, by referring to the roll diagram of each of the above processes, the electrode portion that caused the problem can be traced back. As described above, the roll diagram is a useful tool for tracking quality and identifying quality and defects.

[0699] However, as described above, due to the inversion of the electrode's starting and ending parts and / or surface, and the change in electrode length through a series of roll-to-roll processes, the coordinates of the roll diagrams for each process do not match each other. Therefore, even when a roll diagram is created for each process, it is difficult to track down the cause of the problem by comparing it with the roll diagram of the final surviving electrode.

[0700] In order to solve the above problems, a roll map generation system is provided that can easily identify data on the quality or defects of the remaining electrodes left in the final process by matching the coordinate values ​​of the roll map of each process in a series of roll-to-roll processes with the coordinate values ​​of the final process.

[0701] Figure 26 is a schematic diagram of a scroll image generation system according to one embodiment of the present disclosure, Figure 27is a schematic diagram showing an embodiment of an apparatus for generating a roll map in an electrode coating process and a roll map in an electrode coating process, Figure 28 is a schematic diagram illustrating a principle of obtaining inspection data and coordinate values ​​of the corresponding inspection data by an inspection apparatus, and Figure 29 FIG. 1 is a schematic diagram illustrating an embodiment of a volume map generating unit.

[0702] As described above, the roll pattern generating system 1000 according to the present disclosure is a system for generating a roll pattern in a series of roll-to-roll processes, in which the electrode 1 unwound from the unwinder UW is moved and wound around the rewinder RW sequentially and repeatedly. Figure 26 The embodiment of the coating process, the rolling (R / P) process, and the slotting process as a series of roll-to-roll processes is shown. The rolling process may be performed once or multiple times as needed. In addition, a slitting process for cutting the electrode 1 in the longitudinal direction may be inserted after the rolling process. Therefore, the series of roll-to-roll processes according to the present disclosure is not limited to Figure 26 The present invention provides an embodiment of the present invention and may include more or less roll-to-roll processes or other roll-to-roll processes, depending on the type of electrode 1 or the manufacturing equipment.

[0703] The roll map generation system 1000 according to the present disclosure includes: a roll map generation unit 1100 for making a roll map, which can be defined as a coordinate plane having two coordinate axes (including the vertical axis and the horizontal axis of the electrode 1), and the position of the electrode 1 in each process is displayed as the coordinate value of the coordinate plane of each process; and a roll map matching unit 1200 for matching the coordinate values ​​of the roll map of each process in a series of roll-to-roll processes with the coordinate values ​​of the roll map of the final process, so that the actual electrode represented by the roll map of the final process matches each actual electrode represented by the roll map of each process before the final process.

[0704] The roll diagram is intuitively displayed in the shape of a strip simulating the movement of the electrode 1 between the unwinder UW and the rewinder RW in a roll-to-roll state. Therefore, the length and width of the roll diagram correspond to the length and width of the actual electrode. That is, the roll diagram is defined as a coordinate plane having two coordinate axes (including the vertical axis and the horizontal axis of the electrode 1). In addition, the position of the electrode 1 can be expressed as a coordinate value of the coordinate plane. Therefore, for example, when a defect occurs at a specific position of the electrode 1, the position of the defect can be expressed as Figure 5 The specific coordinate values ​​on the roll map shown. Figure 5 In the , the vertical axis is displayed at the bottom of the volume graph. Figure 5To simplify the explanation, the horizontal axis is not represented as a numerical value on the roll chart. However, appearance defects such as pinhole defects f1 and line defects f2 are intuitively displayed at the vertical and horizontal coordinates where the defects appear. As described above, the roll chart can clearly display defects, etc., at predetermined locations (vertical and axial coordinates) on a coordinate plane represented by two coordinate axes.

[0705] Such a roll map can be made for each detailed process in the roll-to-roll process. Figure 26 The apparatus 1110 for generating a coil map for a coating process, the apparatus 1120 for generating a coil map for a rolling process, and the apparatus 1130 for generating a coil map for a slotting process are shown. The apparatuses 1110, 1120, and 1130 for generating a coil map for each process constitute the coil map generating apparatus 1100 according to the present disclosure.

[0706] Figure 27 One embodiment of an apparatus 1110 for generating a roll map of an electrode coating process is shown.

[0707] The roll map generating apparatus 1110 includes a position measuring device 20 , an inspection and / or measurement device 10 , and a roll map generating unit 40 .

[0708] In the reel-to-reel process, the electrode 1 is installed between the unwinder UW and the rewinder RW. During the reel-to-reel process, the electrode 1 is unwound from the unwinder UW and coated with active material by the coater C. After coating, markers MM mark reference points at predetermined intervals on the uncoated portion 1b of the electrode 1. If the electrode length changes due to breakage, defect removal, or other factors, the change in electrode length can be identified by the change in the spacing between the reference points M. Because the electrode 1 moves with the rotation of the unwinder UW and rewinder RW, the longitudinal position of the electrode 1 can be determined based on the amount of rotation of the unwinder UW or rewinder RW. The position measurement device 20 can acquire the longitudinal position of the electrode 1 as the coordinate value of the electrode's longitudinal axis. For example, for an electrode 1 with a length of 1200 meters, a coordinate value of zero acquired by the position measurement device 20 indicates the beginning of the electrode 1, while a coordinate value of 1200 meters indicates the end of the electrode 1. As the position measuring device 20, rotary encoders 20U and 20R installed in the unwinder UW and the rewinder RW can be used. Generally, the rotary encoders 20U and 20R are installed in the motor drive unit for driving the unwinder UW and the rewinder RW to detect the electrode moving distance based on the number of revolutions (rotation amount) of the motor. Therefore, when the electrode 1 moves between the unwinder UW and the rewinder RW, the moving distance can be detected by the rotary encoders 20U and 20R. Although for the convenience of description, Figure 27The encoder 20U of the unwinder and the encoder 20R of the rewinder are shown to be arranged outside the unwinder UW and the rewinder RW, respectively, but the encoders are embedded in the unwinder UW and the rewinder RW, respectively. However, the roll map can be made after the electrode 1 is completely wound around the rewinder RW and the electrode winding is completed (that is, after all coordinate data along the length of the electrode and all inspection and / or measurement data are input). Therefore, it is preferable to use the rotary encoder 20R installed in the rewinder RW as the position measuring device 20 to generate the roll map. In this specification, the operation of generating the roll map and matching the roll map, which will be described below, will be described based on the coordinate values ​​obtained by the rewinder.

[0709] The roll map generating apparatus 1110 further comprises predetermined inspection and / or measurement means 10 for measuring the quality or defects of the electrodes 1 adjacent to the electrode movement line.

[0710] The inspection and / or measurement device 10 can acquire inspection and / or measurement data by inspecting the electrode 1, and can be connected to the position measurement device 20 in a wired or wireless manner to acquire the coordinate values ​​of the longitudinal axis of the electrode portion for which the inspection and / or measurement data is acquired, along with the inspection and / or measurement data. The inspection and / or measurement data may include data regarding the quality or defects of the electrode 1 and data regarding the position of the reference point.

[0711] The inspection and / or measurement data may be one or more of the following:

[0712] 1) data regarding at least one of the size and width of the electrode;

[0713] 2) data on the mismatch between the coated and uncoated portions of the electrode;

[0714] 3) data on the slurry loading on the electrode;

[0715] 4) Data on electrode appearance;

[0716] 5) Data on the location of disconnected areas of electrodes or the locations of connections between electrodes or joints on electrodes;

[0717] 6) data on the location of the sample inspection unit;

[0718] 7) data on the location of electrode discard intervals;

[0719] 8) Data on insulation quality or defects in the insulation material coating process performed after electrode slurry coating;

[0720] 9) Other defect data;

[0721] 10) data regarding reference points marked at predetermined intervals on the electrodes; and

[0722] 1) Data on electrode thickness after rolling.

[0723] The inspection and / or measurement device 10 installed in each process may be different. Therefore, the inspection and / or measurement data inspected in each process may be different according to the processing performed in each process.

[0724] Figure 27 As the inspection and / or measuring device 10 , a load quantity measuring device 11 , a reference point measuring device 12 and a visual inspection device 23 are shown.

[0725] In the coating process, the coating amount (i.e., loading amount) when coating the slurry is important. Therefore, in the coating process, the slurry loading amount is measured by the loading amount measuring device 11. When the loading amount exceeds the set range, this situation is determined to be a defect, which can be different from other parts and is intuitively displayed by the visualization device to be described below. Alternatively, even when the loading amount is in a normal range rather than a defect, the range can be divided according to the amount and intuitively displayed in different colors. In this sense, the inspection and / or measurement data according to the present disclosure are not limited to defects, but include data about quality as a whole. In Figure 27 In the example, the load level is displayed on the volume graph by changing the contrast from dark to light colors. That is, the darkest color indicates an overload, the next darkest color indicates a normal load, and the lightest color indicates an underload. However, this is only one example of a visual representation of the load level, and the load level can be displayed using various methods, such as color, saturation, and contrast.

[0726] Furthermore, there are cases where reference points are marked on the electrode 1 at predetermined intervals and used to calculate the length of a broken electrode, etc. A reference point measuring device 12 for detecting the position of the reference point M may also be provided as the inspection and / or measurement device 10 .

[0727] Meanwhile, when electrodes are broken in a process and connected by means of a joint connecting member (joint tape), a joint measuring device for detecting the joint may also be provided as one of the inspection and / or measurement devices 10 .

[0728] In addition, a size and width measuring device for measuring the size and width of the coated portion and the uncoated portion may also be provided as the inspection and / or measurement device 10. The size and width measuring device may also determine that the size and width outside the set range are defective data, or divide the data in the normal range according to the range of the size and width to display each of the divided data as a different visual image. The size and width measuring device may also obtain data on the mismatch between the coated portion and the uncoated portion on the electrode 1, etc.

[0729] Furthermore, an electrode appearance inspection device 13 may be provided to obtain data on the appearance of the electrode, including appearance defects of the electrode, such as pinhole defects and line defects.

[0730] The above detection device is an explanation of the detection device mainly used in the electrode coating process. When the process is different, for example, in the rolling process, the above-mentioned loading detection device can be replaced by a detection device for obtaining data about the thickness of the electrode after being rolled by the roller.

[0731] The inspection and / or measuring device 10 is not limited to the above-mentioned device, and when there are other measurement parameters that can be obtained from the electrode 1, predetermined other inspection and / or measuring devices 10 that can inspect the other measurement parameters can also be applied to the roll map generation device 1100 according to the present disclosure. In addition, the inspection and / or measuring device 10 is not necessarily provided separately, and one inspection and / or measuring device 10 can obtain multiple inspection and / or measurement data, in which case the number of necessary inspection and / or measuring devices 10 can be reduced. Alternatively, depending on the purpose, multiple inspection and / or measuring devices 10 with the same name can also be provided. That is, since the color sensor as a joint measurement device inspects the outside, the color sensor can also be regarded as an appearance inspection device 13. In addition, the visual measurement device can be regarded as a size and width measurement device because it can measure mismatch, but can also be regarded as a reference point measurement device because it can also detect the reference point with the help of the visual sensor included in the corresponding measurement device.

[0732] The electrode inspection and / or measurement device 10 can transmit the coordinate values ​​(position data) of the electrode portion, for which corresponding inspection and / or measurement data has been acquired, along with the inspection and / or measurement data, to a roll map generation unit 40, described below, via a controller 30 for controlling the current roll-to-roll transfer process, or directly in cooperation with the position measurement device 20. The roll map generation unit 40 can visually display the inspection and / or measurement data and the coordinate values ​​on a roll map of the coating process.

[0733] Figure 28 Schematic diagram illustrating the principle of acquiring inspection data and corresponding coordinate values ​​of the inspection data by an inspection and / or measuring device.

[0734] exist Figure 27 and Figure 28In the embodiment, when the inspection and / or measurement device inspects the electrode 1 and acquires inspection data, the position of its electrode portion is detected by the position measurement device 20 of the rewinder RW. However, at the time point of acquiring the inspection data, the electrode portion is not in a state of reaching the rewinder RW. In this embodiment, since the coordinates of the winding diagram are based on the rewinder RW, the longitudinal coordinate detected when the electrode portion actually reaches the rewinder RW becomes the longitudinal coordinate of the corresponding electrode portion. Therefore, by adding the distance (offset distance) from each inspection device to the rewinder RW and the encoder value (longitudinal coordinate value) of the rewinder RW at the time point of acquiring the data, the longitudinal coordinate value of the electrode portion for which the inspection data has been acquired is obtained. For example, the longitudinal coordinate value of the electrode portion a whose load is detected by the load measurement device 11 is the value obtained by adding the encoder value (coordinate value) A of the rewinder RW at the detection time point and the offset distance L1 between the load measurement device 11 and the rewinder RW. Based on the same principle, the longitudinal coordinate value of electrode portion b, at which the reference point is detected by the reference point measuring device 12, is obtained by adding the encoder value B of the rewinding machine RW at the time of detection to the offset distance L2 between the reference point measuring device 12 and the rewinding machine RW. Furthermore, the longitudinal coordinate value of electrode portion c is obtained by adding the encoder value C of the rewinding machine RW at the time of detection to the offset distance L3 between the visual inspection device 13 and the rewinding machine RW.

[0735] At the same time, the transverse coordinate values ​​of the electrode portion for which the inspection and / or measurement data have been acquired can be acquired by means of the inspection and / or measurement device 10 .

[0736] For example, an inspection and / or measuring device 10 (such as Figure 27 The appearance inspection device shown) may include a program capable of scanning and inspecting the outside of the electrode 1 in the width direction of the entire electrode 1. Alternatively, the inspection device itself may be movably mounted in the width direction of the electrode. Alternatively, a plurality of inspection devices may be mounted in the width direction of the electrode. Therefore, the inspection and / or measuring device 10 can acquire data about the quality or defects of each point of the electrode in the width direction (for example, load data or appearance defect data), and the inspection and / or measuring device 10 can also acquire the lateral position data (coordinate values) of the acquired data. Therefore, each inspection and / or measuring device 10 can acquire all inspection and / or measurement data (for example, data about quality or defects), the longitudinal coordinate values ​​and the lateral coordinate values ​​of the electrode 1 for which the inspection and / or measurement data has been acquired, and transmit all data to the roll map generation unit 40 to be described below.

[0737] Figure 29 FIG. 4 is a schematic diagram showing an embodiment of the roll map generating unit 40 .

[0738] The roll map generation device 1110 includes a roll map generation unit 40 for generating a roll map in cooperation with the position measurement device 20 and the inspection and / or measurement device 10. The roll map generation unit 40 may include a database 41 for storing data acquired from the inspection and / or measurement device 10 and the position measurement device 20, or storing data regarding the quality, size, etc. of normal electrodes. In addition, the roll map generation unit 40 may include a central processing unit 42 for processing the acquired data and instructing a visualization device 43 provided in the roll map generation unit 40 to visualize the data.

[0739] The roll map generation unit 40 includes a visualization device 43 that can define a visualization area to form a coordinate plane for the roll map. The electrode 1 is simulated on the roll map and the inspection data and the coordinate values ​​of the electrode's longitudinal and transverse axes are intuitively displayed in the defined area. The visualization device 43 can visualize the corresponding inspection and / or measurement data and display it on the coordinate values ​​of the inspection and / or measurement data. The visualization device 43 can be connected to the central processing unit 42 to visualize the inspection and / or measurement data and the coordinate values ​​according to instructions from the central processing unit.

[0740] refer to Figure 29 The visualization device 43 includes an acquisition data input unit 43a, a volume coordinate identifier 43b and an image generator 43c.

[0741] The acquired data input unit 43 a receives data from the database 41 or a central processing unit connected to the database 41 .

[0742] The roll image coordinate identifier 43b can define a visualization area to form a roll image, and define the coordinate values ​​of pixels within the visualization area for each data element of the acquired source data. In this case, when data on the electrode roll specifications (such as batch number, length, and width, etc.) is input to the controller 30, a server (not shown), etc. by registering information about the electrode roll, the roll image coordinate identifier 43b can calculate and determine the visualization area of ​​the roll image based on the data on the size of the electrode 1 according to a predetermined conversion ratio. Alternatively, the roll image coordinate identifier 43b can also calculate and determine the visualization area of ​​the roll image based on the above-mentioned longitudinal data and transverse data of the coordinate values ​​of the electrode 1 according to a predetermined conversion ratio.

[0743] The roll map coordinate identifier 43b can map the acquired data on quality or defects with the (longitudinal and transverse) position data of the electrode 1 and distribute the mapped data on the visualization area (roll map) according to the coordinates of the pixels.

[0744] The image generator 43c can represent the mapping data elements of the coordinates assigned to each pixel in the visualization area as at least one legend. The legend refers to various shapes (such as circles, quadrilaterals, and triangles) displayed in the visualization area, and provides the colors of the shapes, etc. Therefore, the roll map according to the present disclosure can be made in the following manner: various data on quality or defects at the coordinates of the pixels corresponding to each position data of the actual electrode 1 (coordinates on the roll map) are intuitively displayed in a specified shape, form, or color for each data, and the data on the roll map is implemented by the image generator 43c in a visualization area called the roll map.

[0745] Furthermore, based on data stored in a storage device such as the database 41, data corresponding to a specific range can be loaded from the storage device in conjunction with a specific range of the volume image and displayed on the screen (generated as an image). At this time, the central processing unit 42 can instruct the visualization device 43 to visualize and display the inspection data determined to be abnormal compared to the normal data stored in the database 41 and different from the other data.

[0746] The size of the visualization area or the coordinates of the visualization area can be set or identified to generate an image by various conventional user interfaces or various programs or processing tools related to data distribution, processing, analysis, and visualization. Therefore, the volume map generation unit 40 is only one embodiment and is not limited to the above-mentioned embodiment.

[0747] The roll map generation unit 40 can be, for example, a data processing system (such as an MES) or a component of a corresponding data processing system. A data processing system is a system (including hardware or software) for inputting, processing, outputting, communicating, etc., in order to perform a series of operations on data. In the electrode 1 manufacturing process, an electrode MES, an assembly MES, etc. are provided for managing a series of electrode manufacturing processes (such as coating, pressing, and slitting). Therefore, when the above-mentioned coordinate data, inspection data, etc. are transmitted to the MES, the above-mentioned roll map can be generated by the MES.

[0748] The roll map generating apparatus 1110 may further include a controller (PLC) 30 for controlling the movement of electrodes between the unwinder UW and the rewinder RW.

[0749] The controller 30 can transmit the inspection and / or measurement data and the coordinate values ​​of the electrode portion for which the inspection and / or measurement data has been acquired to the roll map generation unit 40 in conjunction with the position measurement device 20 and the inspection and / or measurement device 10. In this case, the controller 30 can match the coordinate values ​​with the inspection and / or measurement data, or process the inspection data and coordinate data into a form that can be easily processed by the roll map generation unit 40. Since the PLC 30 is connected to the inspection and / or measurement device 10, encoder, etc. to control the roll-to-roll transfer of the electrode, it is more efficient in terms of data processing and management for the inspection and / or measurement device 10, encoder, etc. to transmit data to a data processing system (such as an MES) with the help of the controller 30 than to transmit the data directly to the data processing system.

[0750] In addition, the controller 30 of each roll-to-roll process stores information about the winding direction of the electrode in the rewinder RW and the unwinding direction of the electrode in the unwinder UW. That is, information about whether the winding direction of the electrode is forward (clockwise) or reverse (counterclockwise) and whether the unwinding direction of the electrode is forward or reverse is automatically stored in the controller 30 for controlling the corresponding roll-to-roll process. As will be described below, in the previous process and the subsequent process, according to the winding direction and unwinding direction of the electrode, the starting part and the ending part of the electrode are reversed, or the top surface and the back surface of the electrode 1 are reversed. Therefore, by transmitting this information to the roll map matching unit 1200 to be described below, the roll map matching unit 1200 can match the roll map of each process by reflecting the coordinate values ​​of the roll map when matching the coordinate values ​​of the roll map.

[0751] The volume map generating unit 40 generates a volume map using the above data. Figure 27 An example of such a roll diagram is shown.

[0752] The absolute coordinates of the coating process are shown in Figure R1. Figure 27 The absolute coordinate scroll R1 is a scroll that displays the coordinate values ​​of the electrode portions removed in each process and between processes together with the coordinate values ​​of the remaining electrodes (excluding the removed electrode portions) in the coordinate space. The relative coordinate scroll r1 is a scroll that displays only the coordinate values ​​of the remaining electrodes (excluding the removed electrode portions) in the coordinate space.

[0753] Since the relative coordinate scroll r1 represents the remaining electrode after the corresponding process is completed, the relative coordinate scroll r1 becomes a scroll representing the actual electrode.

[0754] Figure 27A roll diagram of an electrode with a total length of 1200 meters is shown. Reference points M are marked at 300, 600, and 900 meters, representing the 25%, 50%, and 75% points along the electrode. Based on data detected by the reference point measuring device 12, each of these reference points M is displayed on the roll diagram at the corresponding coordinate value. Furthermore, the loading amount is displayed by varying the contrast across the corresponding coordinate interval. However, intervals v, displayed in white without contrast, are not inspected by the loading amount measuring device 21. When the electrode is moved in a roll-to-roll state, intervals where data cannot be acquired by the inspection device may occur due to various reasons, such as fluctuations in the electrode, the sensitivity of the inspection device, and problems in data communication.

[0755] At the same time, the coordinate value of the right end coordinate of the roll diagram R1 and r1 is zero as the starting part, and the coordinate value of the left end coordinate is 1200 meters as the ending part. The winding of the rewinder RW starts at the starting part, and the encoder value (coordinate value) of the rewinder RW is zero at this time. When the winding is finished, the encoder value of the rewinder becomes 1200. However, when the electrode 1 is wound 1100 meters, the end of the electrode is actually cut off by 100 meters. As mentioned above, the operation of cutting off the electrode after the electrode roll is completed is called "removal after completion". Since the starting and ending parts of the electrode usually have uneven quality, the electrode is usually cut off before the start of winding or at the time point when the winding ends. In this regard, there is a case where a defective interval, etc. is also cut off and the electrode 1 is connected during the corresponding process, which is called "current process removal". The roll diagram also displays information about the change in electrode length. This length change of the electrode can be identified by detecting (checking) the change in the interval between the reference points M. The absolute scroll R1 also shows the 100 meter length of electrode removed after completion, but the relative scroll r1 shows only the remaining electrodes (surviving electrodes) excluding the removed electrodes. In the relative scroll the end of the electrode section is indicated by 1100 meters.

[0756] In addition, the defect area NG is also displayed Figure 27 During the electrode coating process, the section between 800 meters and 1000 meters is identified as a defective section NG by visual inspection by the visual inspection device 13 or by an operator, and a defect label or the like may be attached to the defective section NG. This defect label or the like is detected by the inspection device, and the coordinates of the corresponding defective section NG can be displayed on the roll map.

[0757] To provide a standard for comparison when matching coil diagrams and creating superimposed coil diagrams, a star indicates the 650-meter point (a specific location on the coil diagram). The star can also represent a point of appearance defects and serve as a reference point for specific quality-related characteristics. The vertical coordinate value of the point indicated by the star is 650 meters. When the electrode width is 60 cm, the horizontal coordinate value of the star point is 40 cm (0.4 m) from the lower end of the electrode. As described above, the coordinate value of the star point can be obtained using a specific inspection device capable of detecting the corresponding star point.

[0758] like Figure 29 As shown, the roll map generating apparatus 1100 displays the prepared roll map on the display unit 1300 so that data on quality or defects can be intuitively and easily recognized at a glance.

[0759] exist Figure 27 In the embodiment, the inspection and / or measuring device 10 can be positioned on the top surface of the electrode, and a roll map of the top surface of the electrode can be made using the inspection and / or measuring device 10. However, a roll map of the back surface of the electrode can also be made by installing the inspection and / or measuring device on the back surface of the electrode. Alternatively, depending on the layout of the factory equipment, each of the roll maps of the top surface and the back surface of the electrode can be made by passing the electrode under the inspection and / or measuring device with the top surface facing upward, and then reversing the electrode with the aid of a guide roller or the like, and passing the electrode under the same inspection and / or measuring device with the back surface facing upward.

[0760] Figure 30 is a schematic diagram showing one embodiment of a roll diagram of the top and back surfaces of an electrode.

[0761] Figure 30 The upper diagram shows an input state of a raw material to be displayed in comparison with a roll diagram rather than a roll diagram. That is, in the upper diagram, c indicates a current collector, and part 1a indicates a coating portion coated on the top and back surfaces of the current collector. Figure 30 The figure below shows a roll diagram of the top surface T and back surface B of an electrode. As shown, even for the same electrode, the top and back surfaces have different loading levels and appearance defects. Therefore, during the electrode coating process, roll diagrams are required for both the top and back surfaces.

[0762] Figure 31 is a schematic diagram illustrating aspects of electrode reversal according to a winding direction in a previous process and an unwinding direction in a subsequent process.

[0763] like Figure 31As shown, the winding direction of the electrode in the conventional rewinding machine RW is divided into an upper winding direction (forward direction: clockwise) and a lower winding direction (reverse direction: counterclockwise). As described above, the electrode rolls wound in two different directions can be unwound in the upper unwinding direction (forward direction: clockwise) and the lower unwinding direction (reverse direction: counterclockwise), respectively.

[0764] According to the winding direction of the electrode in the rewinder RW of the previous process and the unwinding direction of the electrode in the rewinder RW of the subsequent process, the electrode paths are divided into four types.

[0765] First, when the winding direction of the rewinder in the previous process is the upper winding direction and the unwinding direction of the unwinder in the subsequent process is the upper unwinding direction, the starting portion S and the ending portion E of the electrode in the previous process are reversed. When the starting portion and the ending portion of the electrode are reversed, this means that the coordinate axes of the coordinate plane constituting the winding diagram are symmetrically moved.

[0766] Figure 32 In one figure, the reversal of the coordinate axes of the volume graphs of the previous process and the subsequent process is shown. Figure 32 The upper part of the roll diagram in shows the coordinate axes (X-axis and Y-axis) and coordinate values ​​in the previous process. In the previous process, the electrode is moved from the unwinder UW to the rewinder and is wound around the rewinder RW. In this case, the coordinate value of the triangle point is measured to be 700 meters for the coordinate of the vertical axis (X-axis), and 2 meters for the coordinate of the horizontal axis from the lower end of the electrode (assuming that the width of the electrode is 3 meters). When the electrode roll is completely wound around the unwinder UW of the previous process and the electrode roll is mounted on the rewinder RW of the subsequent process, the point of 1200 meters, which is the end part of the electrode roll in the previous process, is 0 meters, which is the beginning part of the electrode roll in the subsequent process. That is, due to the characteristics of the electrode roll, the beginning and end parts of the electrode roll in the previous process and the subsequent process are reversed. Based on the inversion of the coordinate plane descriptions for the previous and subsequent processes, it can be seen that the vertical axis (X-axis) of the previous process is symmetrically shifted relative to the horizontal axis (Y-axis), becoming the vertical axis (X'-axis) of the subsequent process, and the horizontal axis (Y-axis) of the previous process is symmetrically shifted relative to the vertical axis (X-axis), becoming the horizontal axis (Y'-axis) of the subsequent process. Therefore, the coordinate values ​​of the triangle points in the previous process (700 meters and 2 meters) are also reversed to (500 meters and 1 meter) in the subsequent process.

[0767] Start / end reversals occurred in all four types of electrode paths.

[0768] exist Figure 31In the first case, where the electrode path follows the winding direction in the previous process and the unwinding direction in the subsequent process, the black dot shifts between the previous and subsequent processes, meaning that the electrode in the previous process has been reversed in both the longitudinal and width directions in the subsequent process. In other words, the start / end of the electrode has reversed. In this case, the top and back surfaces of electrode 1 are not reversed.

[0769] Second, when the winding direction of the rewinder in the previous process is the upper winding direction (clockwise winding) and the unwinding direction of the unwinder UW in the subsequent process is the lower unwinding direction (counterclockwise unwinding), the start / end reversal of the electrode 1 and the top / back surface reversal of the electrode 1 occur simultaneously. For example, the electrode 1 that moves with the top surface facing upward in the coating process is turned over and moved with the back surface facing upward in the rolling process. Therefore, when matching the coil diagram to be described below, these points should be taken into consideration.

[0770] Third, when the winding direction of the rewinding machine in the previous process is the lower winding direction (counterclockwise winding) and the unwinding direction of the unwinding machine in the subsequent process is the upper unwinding direction (clockwise unwinding), as in the second case, the reversal of the start / end of the electrode 1 and the reversal of the top surface / back surface of the electrode 1 occur simultaneously.

[0771] Fourth, when the winding direction of the rewinder in the previous process is the lower winding direction and the unwinding direction of the unwinder in the subsequent process is the lower unwinding direction, the reversal of the start / end of the electrode 1 only occurs.

[0772] Figure 33 is a schematic diagram illustrating one embodiment of an apparatus 1120 for generating a coil map of a rolling process and a coil map of a rolling process.

[0773] As with the coating process described above, the rolling process is also provided with a position measuring device 20 , an inspection and / or measuring device 10 , and a coil map generating unit 40 .

[0774] Since the rolling process involves rolling the electrode 1 coated in the coating process with rollers R, the electrode thickness after rolling is important. Therefore, in the rolling process, a thickness measuring device 14 is provided to replace the load measuring device. Furthermore, the rolling process is similar to the coating process in that a reference point measuring device 12 and an appearance inspection device 13 are provided. The thickness measuring device 14 can be a predetermined displacement sensor, a confocal thickness sensor, or the like.

[0775] The coil map generation unit 40 of the rolling process also forms a coordinate plane of the coil map in cooperation with the position measuring device 20 and the inspection and / or measuring device 10 . Figure 33The figure above shows coil diagrams R2 and r2 of the rolling process. The coil diagram is intuitively displayed by changing the hatching according to the electrode thickness. Even in the coil diagram, there may be intervals v where inspection and / or measurement data is not reflected.

[0776] Figure 33 The scroll at the uppermost end is the absolute coordinate scroll R2, and the scroll below it is the relative coordinate scroll r2.

[0777] Since the end portion of the electrode is removed by 100 meters at the end of the coating process or after the coating process is completed, the coordinate value of the end portion of the absolute coordinate coil diagram R2 of the rolling process is also 1100 meters. In addition, since the start and end portions of the electrode coils of the coating process and the rolling process are reversed, the coordinates of the coil diagram of the rolling process are also reversed. Therefore, the coordinate value of the reference point M of the coating process and the coordinate value of the reference point M of the rolling process also change. In addition, according to the reversal of the start / end, the coordinates of the star point also change from (650, 0.4) to (450, 0.2). In the rolling process, the interval between 800 and 1000 meters marked as the defect interval NG in the coating process (which is the previous process) is reversed to become the interval between 100 and 300 meters. The defect interval is removed from the workbench t of the defect interval processing port and discarded to the defect removal port P (scrap port).

[0778] The removal of the defective section NG can be reported to the controller 30 and the roll map generating unit 40 via the input device 60. Since the defects in the section between 100 and 300 meters are removed, the 200-meter point M, which is the reference point in the defective section, is also removed.

[0779] exist Figure 33 In the relative coordinate volume r2, only the coordinates of the remaining electrodes left after the defective area is removed are shown.

[0780] Even in the rolling process, a roll pattern can be made for each of the top surface and the back surface of the electrode 1 .

[0781] In this case, as described above, when the winding direction of the rewinder of the coating process is the upper winding direction and the unwinding direction of the unwinder of the rolling process is the lower unwinding direction, the top surface of the electrode in the coating process is reversed to the back surface of the electrode in the rolling process. In addition, when the winding direction of the rewinder of the coating process is the lower winding direction and the unwinding direction of the unwinder of the rolling process is the upper unwinding direction, the top surface of the electrode in the coating process is reversed to the back surface of the electrode in the rolling process. The inversion situation is stored in the controller 30 of the coating process and the controller 30 of the rolling process, and the coil map generation unit 40 and the coil map matching unit 1200 can refer to such information to generate a coil map for each process and match the coil maps of each process, as will be described below.

[0782] Figure 34 This is a schematic diagram showing the removal of an electrode 1 after the rolling process. This is the case when the end portion of the electrode is removed by 50 meters after the rolling process. This removal of the electrode is clearly shown in the absolute coordinate diagram r2 and the relative coordinate diagram r2'.

[0783] Figure 35 is a schematic diagram illustrating one embodiment of an apparatus 1130 for generating a reel map of a slotting process and a reel map of a slotting process.

[0784] In the slotting process, the electrode joint is formed by punching the electrode moving in the roll-to-roll state using a punching tool BM. In addition, a reference point measuring device 12 may be provided to check the length change of the electrode before and after or during the slotting process.

[0785] Figure 35 The figure above shows an embodiment of a roll diagram for a slotting process. In the slotting process after the rolling process, a start / end reversal of electrode 1 occurs. Therefore, the coordinates of the star are changed from (450, 0.2) to (600, 0.4) again. In addition, the end portion of the electrode is removed by 100 meters after slotting. The coordinates of the removed electrode portion are displayed together on the absolute coordinate roll diagram R3 of the slotting process, but only the coordinates of the roll diagram of the remaining electrode are displayed on the relative coordinate roll diagram r3. Through the coating process, the rolling process and the slotting process, a total of four times a portion of the electrode is removed. Therefore, it can be seen that the electrode with a length of 1200 meters eventually becomes a length of 750 meters.

[0786] At the same time, in the slotting process, unlike the coating process or the rolling process, there is no need to generate roll diagrams of the top surface and the back surface of the electrode separately. In the slotting process, no special treatment is performed on the top surface and the back surface of the electrode, and only stamping is performed. Therefore, as in the previous process, only a reference point measurement device related to the length change is installed, and a complex inspection and / or measurement device that displays the electrode status is not installed. That is, the characteristics of the top surface and the back surface of the electrode can be fully identified with the help of the roll diagrams of the coating process and the rolling process, and in the slotting process, the characteristics of the top surface and the back surface do not change particularly due to slotting. Therefore, in the slotting process, regardless of the top surface and the back surface of the electrode, it is sufficient to generate a roll diagram of a single plane that only displays the coordinate values ​​on the coordinate plane.

[0787] As described above, the system 1000 for making a roll map according to the present disclosure includes an apparatus 1100 for generating a roll map for each process. Figure 26, the coating process, the rolling process and the slotting process respectively include coil map generating devices 1110, 1120 and 1130. The devices 1110, 1120 and 1130 for generating coil maps of each process are combined to constitute the coil map generating device 1100 according to the present disclosure. For ease of description, Figure 26 It is shown that the roll map generation unit 40 for each process is provided separately. However, as described above, the roll map generation unit 40 may be an MES or a component of an MES, and one integrated system may generate all roll maps for each process. Figure 26 In FIG. 4 , a single volume map generating unit 40 is shown in a large rectangular frame, and the single volume map generating unit 40 can be integrated as a whole by combining the individual volume map generating units.

[0788] As described above, another reel-to-reel process, such as a second rolling process or a slitting process, may be included between the rolling process and the slotting process. Therefore, in a series of reel-to-reel processes, electrode roll start / end reversals and surface reversals may occur more frequently. The reel map generation unit 40 can generate a reel map for each process by reflecting all reversal information.

[0789] The roll diagram generation system 1000 according to the present disclosure includes a roll diagram matching unit 1200 for matching the coordinate values ​​of the roll diagram of each process with the coordinate values ​​of the roll diagram of the final process, so that the actual electrode represented by the roll diagram of the final process in a series of roll-to-roll processes matches each actual electrode represented by the roll diagram of each process before the final process.

[0790] As mentioned above Figures 26 to 35 As described above, when the roll-to-roll process continues, there will inevitably be a reversal of the start / end of the electrode roll of the previous process and the electrode roll of the subsequent process, and a reversal of the surface of the electrode roll may also occur depending on the winding direction in the previous process and the unwinding direction in the subsequent process. In addition, due to the removal of the electrode in each process, the length of the roll diagram and the coordinate values ​​of each process also change. Therefore, since the coordinate values ​​of the roll diagram of each process change, it is difficult to compare these roll diagrams based on the same standard. What is important is the electrode portion that remains in the final process and is manufactured into an actual battery. When a problem occurs in a battery manufactured using the retained electrode, it is necessary to subsequently study which electrode portion is manufactured into a battery in each detailed process of the electrode manufacturing process. However, as described above, the roll diagram of each process has different coordinate values, making it difficult to track the quality of a specific position of the electrode.

[0791] According to the present disclosure, a roll diagram matching unit 1200 is provided to compare the roll diagrams of each process based on the same standard or using the same coordinate values. The roll diagram matching unit 1200 matches the roll diagram of each process so that the actual electrode represented by the roll diagram of the final process in a series of roll-to-roll processes matches each actual electrode represented by the roll diagram of each process before the final process. That is, the roll diagrams are matched so that the actual electrode (remaining electrode) of the final process corresponds to the actual electrode of each process before the final process. From this point of view, the roll diagram matching unit 1200 matches the actual electrode of each process and the final process with the roll diagram of the corresponding process. The roll diagram matching is performed by matching the coordinate values ​​of the roll diagram of each process with the coordinate values ​​of the roll diagram of the final process.

[0792] Figures 36 to 38 is a schematic diagram illustrating a volume map matching process according to the present disclosure.

[0793] Figure 36 From the top, the absolute coordinate roll graph R1 and the relative coordinate roll graph r1 of the coating process, the absolute coordinate roll graph R2 and the relative coordinate roll graph r2 of the rolling process, and the absolute coordinate roll graph R3 and the relative coordinate roll graph r3 of the slotting process are shown in sequence. Figure 27 、 Figure 33 and Figure 35 Each volume map generation unit 1100 is made.

[0794] As described above, the relative coordinate reel map represents the actual electrodes in each process, excluding electrode portions removed during or between processes. Therefore, the reel map matching operation of the reel map matching unit 1200 is to match the coordinate values ​​of the relative coordinate reel map of each process before the final process with the coordinate values ​​of the relative coordinate reel map of the final process.

[0795] refer to Figure 26 , the roll image matching unit 1200 may include a roll image length matching unit 1210 , a coordinate axis matching unit 1220 , and a top and back surface matching unit 1230 .

[0796] In a series of roll-to-roll processes, the actual electrode is removed before or after each process or during the corresponding process due to reasons such as defects or uneven quality. Therefore, the coordinate values ​​of the roll diagram of the final process and the coordinate values ​​of the roll diagram of each process are changed. It is important that the coordinate values ​​of the roll diagram of each process should match the coordinate values ​​of the roll diagram of the final process so that the actual electrode (remaining electrode) represented by the roll diagram of the final process matches each actual electrode represented by the roll diagram of each process. When the length of the electrode does not change between the starting process and the final process in the roll-to-roll process, roll diagram length matching is not required. However, due to the characteristics of mass production processes, the starting and ending parts of the electrode often have uneven quality, and there are cases where test production parts before mass production are often removed. Therefore, in practice, for any reason, the length of the electrode inevitably changes between the starting and final processes. Taking this into account, the roll diagram matching unit 1200 includes a roll diagram length matching unit 1210 according to the change in electrode length.

[0797] For reel length matching, all coordinate intervals corresponding to the actual electrode sections cumulatively removed during a series of reel-to-reel processes need to be removed from each process's reel. Furthermore, by correcting the coordinate values ​​of the remaining coordinate intervals left from this removal process's reel to correspond to the coordinate values ​​of the final process's reel, the length of each process's reel can be matched to that of the final process's reel.

[0798] Furthermore, when the starting direction of the coordinate axis of the reel diagram of the final process is reversed from the starting direction of the coordinate axis of the reel diagram of a specific process preceding the final process according to the winding direction of the electrode in the rewinder RW of the previous process and the unwinding direction of the electrode in the unwinder UW of the subsequent process, the reel diagram matching unit 1200 matches the starting direction of the coordinate axis of the reel diagram of the specific process with the starting direction of the coordinate axis of the reel diagram of the final process. To this end, the reel diagram matching unit 1200 may include a coordinate axis matching unit 1220 for matching the coordinate axes.

[0799] As described above, due to the nature of reel-to-reel processing, the reel diagrams of the previous process and the subsequent process inevitably experience start / end reversals, where the start and end portions are reversed. Since coordinate axis matching is performed to match the (start) direction of the coordinate axes of the reel diagram of the final process, it is sufficient to simply match the start direction of the coordinate axes of the reel diagram of a specific process in the previous process before the final process, which is opposite to the start direction of the coordinate axes of the reel diagram of the final process. For example, a reel diagram of a process in the previous process that has the same coordinate axis direction as the reel diagram of the final process does not require such a coordinate axis matching operation.

[0800] refer to Figure 36 , there are a total of four electrode removal operations in the entire roll-to-roll process, as follows:

[0801] ① When the coating process is finished, remove the end part by 100 meters;

[0802] ② During the rolling process, the defective area was removed by 200 meters;

[0803] ③ After the rolling process, remove the end portion by 50 meters; and

[0804] ④ After the grooving process is completed, remove 100 meters of the end part.

[0805] Since the electrode was removed four times, the relative coordinates of the final groove process, r3, are 750 meters in length. The star point (electrode portion) for comparison has a vertical coordinate of 600 meters and a horizontal coordinate of 40 cm (0.4 m).

[0806] To match the length of the final process roll, Figure 37 Remove all coordinate intervals of the electrode parts removed four times in the entire roll-to-roll process from the relative coordinate roll diagram of each process. In this case, Figure 37 The portion indicated by the dotted box in becomes the portion of the roll diagram represented by the actual electrode that ultimately remains.

[0807] In this case, since the starting direction of the coordinate axes of the coil map for the coating process is the same as the starting direction of the coordinate axes of the coil map for the slotting process, coordinate axis matching is not required. However, since the starting direction of the coordinate axes of the coil map for the rolling process is reversed and different from the starting directions of the coordinate axes of the coil maps for the coating process and the slotting process, coordinate axis matching is required.

[0808] exist Figure 36 and Figure 37 In the rolling process, the upper ends of the absolute coordinate roll graph R2 and the relative coordinate roll graph r2 show the coordinate values ​​before the coordinate axis matching. These coordinate values ​​are Figure 33 The coordinate values ​​of the coil diagram shown in are consistent. When these coordinate values ​​are reversed (corrected) like the lower end of the corresponding coil diagram, the coordinate values ​​become the same as the starting direction of the coordinate axis of the coil diagram of the slotting process. According to the matching of the coil diagram coordinate axes, the coordinate values ​​of the reference points of the absolute coordinate coil diagram and the relative coordinate coil diagram of the rolling process, the coordinate values ​​of the defect interval, and the coordinate values ​​of the star points are changed. Specifically, the vertical axis and the horizontal axis of the coordinate axis of the coil diagram of the rolling process are matched with the direction of the coordinate axis of the slotting process. In Figure 36 and Figure 37 , the symbols indicated by R2-1 and r2-1 indicate that the coordinate axes of the absolute coordinate roll diagram R2 and the relative coordinate roll diagram r2 of the rolling process are reversed. That is, R2-1 indicates the absolute coordinate roll diagram of the rolling process with the coordinate axes reversed, and r2-1 indicates the relative coordinate roll diagram of the rolling process with the coordinate axes reversed.

[0809] exist Figure 37 In the example, the roll-to-roll process is formed by an odd number of processes (three times), and the directions of the coordinate axes of the roll graphs of the first process (coating process) and the final process (grooving process) are matched. Therefore, the coordinate axes of the roll graph of the second process (rolling process) formed by an even number of processes with the directions of the coordinate axes reversed match the coordinate axes of the roll graph of the final process. However, when the entire roll-to-roll process is formed by an even number of processes by adding processes, the coordinate axes of the roll graph of the final process are matched. Figure 37 Differently, the coordinate axes of the reel map of the odd-numbered process (eg, the first process) need to be matched with the coordinate axes of the reel map of the final process (which is an even-numbered process).

[0810] As described above, coordinate axis matching is performed relatively based on the final process.

[0811] Figure 38 The figure shows the final matched coil diagram after the coil diagram matching operation. The coordinate intervals corresponding to the removed electrode intervals were removed from the coil diagrams for the coating and rolling processes, and the directions of the coil diagram's coordinate axes were also matched to those of the coil diagram for the slotting process. As a result, the coordinate values ​​of the coil diagram for the slotting process, the final process, accurately match those of the coil diagrams for the coating and rolling processes, the previous processes. All coordinate values ​​for the vertical and horizontal axes of the star-shaped points in the three matched coil diagrams at 600 meters and 0.4 meters also match.

[0812] As described above, a roll chart in which the coordinate values ​​of each process roll chart are matched with the coordinate values ​​of the roll chart of the surviving electrode of the final process and arranged side by side for simultaneous viewing is called an "overlay roll chart." The roll chart matching unit 1200 according to the present disclosure is used to ultimately generate the overlay roll chart. When the overlay roll chart is displayed on the display unit 1300, the quality history or manufacturing history of the final surviving electrode can be clearly identified.

[0813] refer to Figure 38 , it can be seen from the (superimposed) coil diagram of the rolling process that the battery manufactured with the electrode at the star point originates from an electrode having a rolled thickness (e.g., a rolled thickness within the normal range) indicated by a specific hatching in the rolling process. In addition, it can be seen from the coil diagram of the coating process that the battery manufactured with the electrode at the star point originates from an electrode having an overload amount coated in excess of the normal range in the coating process. For example, when a fire occurs in a battery manufactured with an electrode at the star point, it can be determined that there is a problem with the corresponding electrode based on the manufacturing history of the coating process. Alternatively, the star point can be an external or other defective part. That is, when a problem occurs in the electrode removed at the star point and this is caused by an appearance defect, it can be simply identified from the superimposed coil diagram which electrode part the part corresponding to the appearance defect in the electrode manufacturing process comes from.

[0814] As described above, according to the present disclosure, by generating a roll map for each process and matching the roll map for each process by the roll map matching unit 1200 , data on the quality or defects of the remaining electrode remaining in the final process can be easily recognized.

[0815] Furthermore, the inspection history in the electrode manufacturing process can be easily identified using the matched roll images (superimposed roll images).

[0816] In addition, according to the present disclosure, even when the starting and ending parts of the electrode roll are reversed or the length of the electrode is changed through a series of roll-to-roll processes, by generating a superimposed roll graph through the above-mentioned roll graph length matching and coordinate axis matching, problems with electrode quality can be tracked intuitively and quickly when problems occur.

[0817] At the same time, when the top surface of the electrode in the previous process is reversed to the back surface of the electrode in the subsequent process according to the winding direction of the electrode in the rewinding machine RW of the previous process and the unwinding direction of the electrode in the unwinding machine UW of the subsequent process, the matching unit 1200 can match the winding diagram by reflecting this surface reversal.

[0818] like Figure 31 As shown, there is a case where the top surface and the back surface of the electrode may be reversed in the previous process and the subsequent process according to the winding and unwinding directions of the electrode in the previous process and the subsequent process.

[0819] In this case, information about the electrode surface inversion is stored in the roll pattern matching unit 1200. For example, the controller 30 of each process retains information about the winding and unwinding directions of the electrode because it controls the movement of th...

Claims

1. A roll graph generating device, the roll graph generating device comprising: an inspection and / or measurement device configured to inspect and / or measure the electrode moving between the unwinder and the rewinder and to acquire inspection and / or measurement data; as well as A roll map generating unit is configured to generate a roll map whose plane simulating the moving electrode is marked with at least some of the inspection and / or measurement data.

2. The roll pattern generating device according to claim 1, further comprising a position measuring device configured to obtain a coordinate value of the position of the electrode according to a rotation amount of the unwinding machine and / or the rewinding machine.

3. The roll map generating device according to claim 2, wherein: The position measuring device is a rotary encoder configured to measure the position of the electrode according to a rotation amount of a motor configured to drive the unwinding machine or the rewinding machine.

4. The roll map generating device according to claim 1, wherein: The inspection and / or measurement data is one of the following: 1) data on at least one of the size and width of the electrode; 2) data on the mismatch between the coated portion of the electrode and the uncoated portion of the electrode; 3) data regarding the slurry loading on the electrode; 4) data on the appearance of the electrode; 5) data on the location of the electrode disconnection interval or the connection location between electrodes; 6) data on the location of the sample inspection unit; 7) data on the location of the electrode discard interval; 8) Data on insulation quality or defects in the insulation material coating process performed after electrode slurry coating; 9) Other defect data; 10) data regarding reference points marked at predetermined intervals on the electrode; and 11) Data on the thickness of the electrode after rolling.

5. The roll map generating device according to claim 1, wherein: The inspection and / or measuring device is at least one of the following: a reference point measuring device configured to measure reference points marked on the electrode at predetermined intervals; a joint measurement device configured to detect a joint attached to the electrode; a loading measurement device configured to measure the slurry loading on the electrode; Size and width measuring devices; Electrode appearance inspection device; as well as Electrode thickness measuring device.

6. The roll map generating device according to claim 2, wherein: The inspection and / or measurement device is connected to the position measurement device to jointly acquire the coordinate value of the electrode portion for which the inspection and / or measurement data has been acquired, and The inspection and / or measurement data and the coordinate values ​​are transmitted to the roll map generation unit.

7. The roll pattern generating device according to claim 2, further comprising a controller configured to control the movement of electrodes between the unwinder and the rewinder, in, The controller is configured to: matching the inspection and / or measurement data with the coordinate values ​​of the electrode portion from which the inspection and / or measurement data has been acquired; and The coordinate values ​​and the inspection and / or measurement data matched to the coordinate values ​​are transmitted to the volume map generation unit.

8. The scroll map generating device according to claim 6 or 7, wherein: The coordinate value of the electrode portion for which the inspection and / or measurement data has been acquired is a value obtained by adding a coordinate value determined according to the rotation amount of the winding machine at the time point when the corresponding inspection and / or measurement data has been acquired to an offset distance, wherein the offset distance is the distance between the corresponding inspection and / or measurement device and the winding machine.

9. The roll map generating device according to claim 2, wherein: The roll map generation unit marks the coordinate values ​​and at least some of the inspection and / or measurement data on the roll map.

10. The roll map generating device according to claim 9, wherein: The roll map generation unit marks reference points marked on the electrode at predetermined intervals at positions on the roll map corresponding to coordinate values ​​of corresponding reference points.

11. The roll map generating device according to claim 9, wherein: The roll map generating unit is a manufacturing execution system MES or a statistical process control SPC unit.

12. The roll map generating device according to claim 9, wherein: The roll map generation unit comprises a visualization device configured to define a visualization area of ​​the plane forming the roll map, and to display the coordinate values ​​and visually display the inspection and / or measurement data on the defined area.

13. The roll map generating device according to claim 12, wherein: The volume map generation unit further includes a central processing unit configured to compare the inspection and / or measurement data with normal data and visually display the data determined to be abnormal on the visualization device.

14. The roll map generation device according to claim 1, further comprising a manual input device, wherein the manual input device is configured to receive inspection and / or measurement data of the electrode that is manually inspected and / or measured, in, The manual input device transmits the inspection and / or measurement data of the electrode being manually inspected and / or measured directly to the roll map generation unit, or transmits it to the roll map generation unit via a controller configured to control the movement of the electrode between the unwinder and the rewinder. 15 . The roll map generation device according to claim 1 , further comprising a display unit connected to the roll map generation unit to display the roll map.

16. The roll map generating device according to claim 2, wherein: The coordinate values ​​acquired by the position measuring device are values ​​of the positions of the electrodes in the longitudinal direction.

17. The roll map generating device according to claim 2, wherein: The roll map generating unit marks coordinate values ​​of positions of the electrodes in a width direction on the roll map.

18. The roll map generating device according to claim 17, wherein: The coordinate value of the position in the width direction is acquired by the inspection and / or measurement device.

19. The roll map generating device according to claim 9, wherein: The volume map generation unit generates at least one of the following: an absolute coordinate scroll diagram showing coordinate values ​​of the electrode removal portion and coordinate values ​​of the remaining electrode portion after removal; and A relative coordinate scroll diagram, wherein the relative coordinate scroll diagram only displays the coordinate values ​​of the remaining electrode portions.

20. The roll map generating device according to claim 9, wherein: The roll map generation unit generates at least one of a roll map with respect to a top surface of the electrode and a roll map with respect to a back surface of the electrode.

21. A method for generating a volume graph, the method comprising: Inspecting and / or measuring an electrode moving between an unwinder and a rewinder, acquiring inspection and / or measurement data, and acquiring coordinate values ​​of a position of the moving electrode; as well as A roll map is generated by marking at least some of the inspection and / or measurement data and the coordinate values ​​on the roll map represented in a planar shape simulating a moving electrode.

22. The method for generating a scroll map according to claim 21, wherein: Before acquiring the inspection and / or measurement data and the coordinate values, an electrode roll information registration operation is performed to register the specifications of the electrode roll mounted on the unwinding machine.

23. The method for generating a scroll map according to claim 22, wherein: Information about at least some of the specifications of the electrode roll is displayed together on the roll map.

24. The method for generating a scroll map according to claim 21, wherein: The inspection and / or measurement data is automatically acquired by a predetermined inspection and / or measurement device or manually acquired by an operator.

25. The volume map generating method according to claim 21, further comprising displaying reference points marked on the electrodes at predetermined intervals at positions on the volume map corresponding to coordinate values ​​of corresponding reference points.

26. The volume map generation method according to claim 21, further comprising comparing the inspection and / or measurement data with normal data, and marking the data determined to be abnormal on the volume map to be visually distinguished from other data.

27. The roll map generation method of claim 21, further comprising tagging data regarding input status of input materials input to an electrode manufacturing process together with the roll map.

28. The roll diagram generation method according to claim 21 further comprises marking one or more detailed data of the inspection and / or measurement data in association with a specific coordinate value or a specific data display portion of the roll diagram or process data for each detailed process mark when manufacturing the electrode.

29. A reel diagram comprising a reel diagram bar displayed in a bar shape simulating an electrode moving between an unwinder and a rewinder, in, At least some of the inspection and / or measurement data acquired by inspecting and / or measuring the movable electrode are displayed at predetermined positions on the roll strip, the predetermined positions corresponding to the positions of the electrode at which the inspection and / or measurement data have been acquired.

30. The roll diagram of claim 29, wherein: The coordinate values ​​indicating the positions of the electrodes in the longitudinal direction are displayed in the longitudinal direction of the scroll bar.

31. The roll diagram of claim 29, wherein: Information about at least one of specifications, manufacturing processes, and manufacturing equipment of the electrode is displayed together with the roll bar.

32. The roll diagram of claim 29, wherein: The inspection and / or measurement data is one or more of the following: 1) data on at least one of the size and width of the electrode; 2) data on the mismatch between the coated portion of the electrode and the uncoated portion of the electrode; 3) data regarding the slurry loading on the electrode; 4) data on the appearance of the electrode; 5) data on the location of the electrode disconnection interval or the connection location between electrodes; 6) data on the location of the sample inspection unit; 7) data on the location of the electrode discard interval; 8) Data on insulation quality or defects in the insulation material coating process performed after electrode slurry coating; 9) Other defect data; 10) data regarding reference points marked at predetermined intervals on the electrode; and 11) Data on the thickness of the electrode after rolling.

33. The roll diagram of claim 29, wherein: The roll strip is provided for each electrode channel and / or each of the top and back surfaces of the electrode, and At least some of the inspection and / or measurement data is displayed on each volume strip.

34. The roll diagram of claim 29, wherein: Data regarding the input status of input materials input to the electrode manufacturing process is displayed along with the volume graph bar.

35. The roll diagram of claim 30, wherein: Detailed data of one or more pieces of the inspection and / or measurement data or process data for each detailed process mark when manufacturing the electrode is displayed in association with a specific coordinate value or a specific data display portion of the roll graph strip.

36. A roll diagram according to claim 35, wherein: When a specific range of the roll bar is designated, the inspection and / or measurement data or process data of each detailed process in manufacturing the electrode is visualized in association with the specific range.

37. The roll diagram of claim 35, wherein: When a specific position is designated on the volume bar, an appearance image of the specific position appears.

38. The roll diagram of claim 29, wherein: The reference points on the electrode are simulated to be marked at predetermined intervals to display the reference points at positions on the roll bar corresponding to the coordinate values ​​of the corresponding reference points.

39. A roll diagram according to claim 38, wherein: When the position of the reference point on the electrode changes due to the coated electrode being rolled and stretched, a reference point simulating the changed reference point is displayed at a coordinate position corresponding to the changed position on the roll bar.

40. A computer-readable recording medium in which the roll map according to any one of claims 29 to 39 is stored.

41. An electrode missing amount measuring device, the electrode missing amount measuring device comprising: an electrode configured to move between the unwinder and the rewinder and having a plurality of reference points marked at predetermined intervals between a start portion of the electrode and an end portion of the electrode; a reference point measuring device configured to measure the reference point marked on the electrode; a position measuring device configured to derive a coordinate value of the electrode according to the rotation amount of the unwinder or the rewinder, and cooperate with the reference point measuring device to derive a coordinate value of a corresponding reference point when the reference point measuring device measures the reference point; as well as A calculator configured to calculate the missing amount of the electrode by comparing the derived reference point coordinate value and the set reference point coordinate value when a reference interval between the starting portion of the electrode and the ending portion of the electrode changes from a set reference point interval due to the missing of a portion of the electrode.

42. A method for measuring electrode missing amount, the method comprising: marking a plurality of reference points at predetermined intervals between a beginning portion and an end portion of an electrode moving between an unwinder and a rewinder; Measuring the reference point on the electrode by a reference point measuring device and deriving the coordinate value of the reference point; as well as When a reference interval between a start portion of the electrode and an end portion of the electrode changes from a set reference point interval due to a missing portion of the electrode, a missing amount of the electrode is calculated by comparing the derived reference point coordinate value with the set reference point coordinate value.

43. A roll map generating device, the roll map generating device comprising: a reference point measuring device configured to inspect an electrode moving between an unwinder and a rewinder and to detect a reference point marked on the electrode; a position measuring device configured to derive a coordinate value of the electrode and a coordinate value of the reference point according to a rotation amount of the unwinder or the rewinder; as well as A roll graph generating unit is configured to generate a roll graph bar simulating a moving electrode and to generate a roll graph showing a missing amount of the electrode calculated by comparing the derived reference point coordinate value and a set reference point coordinate value on the roll graph bar.

44. A curl correction system, the curl correction system comprising: a roll map generating unit configured to generate a roll map of a first process, the roll map being represented as a plane shape on which an electrode moving between a first unwinder and a first rewinder and being subjected to the first process is simulated, and the roll map displays inspection and / or measurement data of the electrode and coordinate values ​​indicating a position of the electrode in the first process; as well as A roll map corrector configured to convert the coordinate values ​​of the roll map of the first process in reverse order so that the coordinate values ​​of the start portion and the end portion of the roll map of the first process are reversed, and when a second process is performed on the electrode moving between the second unwinder and the second rewinder, generate a roll map of the second process.

45. The curl correction system according to claim 44, wherein: When a portion of the end portion of the electrode is removed after the first process is completed and before the second process is started, The roll diagram corrector removes the coordinate values ​​corresponding to the removed portion of the end portion of the electrode from the roll diagram of the first process, converts the coordinate values ​​of the roll diagram of the first process in reverse order so that the coordinate values ​​of the starting portion of the roll diagram of the first process are reversed with the coordinate values ​​of the ending portion from which the portion of the end portion of the electrode has been removed, and generates a roll diagram of the second process.

46. ​​An apparatus for removing defects of an electrode in a second process, the electrode being moved between a first unwinder and a first rewinder and being subjected to a first process, the apparatus comprising: a defect removal port, the defect removal port being positioned between the second unwinder and the second rewinder, and in which a defect interval of the electrode occurring in the first process is removed; as well as a second process controller configured to control the movement of the electrode between the second unwinder and the second rewinder, Wherein, the second process controller calculates the time point when the electrode with the defect interval reaches the defect removal port from the second unwinding machine based on the coordinate information about the defect interval displayed on the roll diagram of the first process, and stops the movement of the electrode to the second process when the defect interval reaches the defect removal port to remove the defect interval of the electrode at the defect removal port.

47. The apparatus according to claim 46, further comprising a roll map corrector configured to correct the roll map by converting the coordinate values ​​of the roll map of the first process in reverse order so that the coordinates of the start portion and the end portion of the roll map of the first process are reversed, in, The second process controller stops the electrode movement based on the coordinate value of the defective section displayed on the corrected roll map.

48. The apparatus of claim 47, wherein: When a portion of the end portion of the electrode is removed after the first process is completed and before the second process is started, The roll pattern corrector removes coordinate values ​​corresponding to the removed portion of the end portion of the electrode from the roll pattern of the first process, and corrects the roll pattern by converting the coordinate values ​​of the roll pattern of the first process in the reverse order so that the coordinate values ​​of the start portion of the roll pattern of the first process are reversed with the coordinate values ​​of the end portion from which the portion of the end portion of the electrode has been removed, and The second process controller stops the movement of the electrode based on the coordinate value of the defective area displayed on the corrected roll map.

49. The apparatus of claim 46, wherein: The second process controller controls the electrode to slowly move in the second process during a predetermined period of time between a predetermined time point and an arrival time point before the defect interval reaches the defect removal port.

50. The device according to claim 46 further includes a warning unit, which is configured to output an alarm for at least one of the following situations: when the defect interval reaches the defect removal port; when the electrode movement to the second process stops; and after a predetermined time has passed since the electrode movement to the second process stopped.

51. The apparatus of claim 48, wherein: The first process is an electrode coating process of applying an electrode active material to a current collector to form a coated electrode, and the second process is a rolling process of rolling the coated electrode with a press roller.

52. A system for generating a roll map of a series of roll-to-roll processes, the series of roll-to-roll processes sequentially and repeatedly performing a process in which an electrode released from an unwinder moves and is wound on a rewinder, the system comprising: a roll map generating device configured to generate a roll map for each process, the roll map being defined as a coordinate plane having two coordinate axes including a longitudinal axis and a width axis of the electrode, and displaying a position of the electrode in each process as a coordinate value of the coordinate plane; as well as A roll diagram matching unit is configured to match the coordinate values ​​of the roll diagram in each process with the coordinate values ​​of the roll diagram of the final process, so that each actual electrode represented by the roll diagram of each process before the final process in the series of roll-to-roll processes is matched with the actual electrode represented by the roll diagram of the final process.

53. The system of claim 52, wherein: The volume map generating device comprises: a position measuring device configured to acquire a coordinate value of a position of the electrode in a longitudinal direction according to a rotation amount of one of the unwinder and the rewinder in each process; an inspection and / or measurement device configured to detect the electrode moving between the unwinder and the rewinder and to acquire inspection and / or measurement data; and A roll map generating unit is used to generate the roll map by defining a visualization area of ​​the coordinate plane forming the roll map and marking at least some of the inspection and / or measurement data and the coordinate values ​​of the electrode in the longitudinal direction on the visualization area.

54. The system of claim 53, wherein: The inspection and / or measurement data is one or more of the following: 1) data on at least one of the size and width of the electrode; 2) data on the mismatch between the coated portion of the electrode and the uncoated portion of the electrode; 3) data regarding the slurry loading on the electrode; 4) data on the appearance of the electrode; 5) data on the location of the electrode disconnection interval, the connection location between electrodes, or the connector on the electrode; 6) data on the location of the sample inspection unit; 7) data on the location of the electrode discard interval; 8) Data on insulation quality or defects in the insulation material coating process performed after electrode slurry coating; 9) Other defect data; 10) data regarding reference points marked at predetermined intervals on the electrode; and 11) data on the thickness of the electrode after rolling, and Coordinate values ​​of the electrode portion for which corresponding inspection and / or measurement data have been acquired are displayed on the graph of each process together with the inspection and / or measurement data.

55. The system of claim 53, wherein: The coordinate value of the electrode portion for which the inspection and / or measurement data has been acquired in the longitudinal direction is a value obtained by adding a coordinate value determined according to the rotation amount of the winding machine at the time point when the corresponding inspection and / or measurement data has been detected to an offset distance, wherein the offset distance is the distance between the corresponding inspection and / or measuring device and the winding machine.

56. The system of claim 53, wherein: The coordinate value in the width direction of the electrode portion for which the inspection and / or measurement data has been acquired is acquired by the inspection and / or measurement device.

57. The system of claim 53, further comprising a controller configured to control electrode movement between the unwinder and the rewinder, in, The controller matches the inspection and / or measurement data with the coordinate value of the electrode portion for which the inspection and / or measurement data has been acquired, and transmits the matching result to the volume map generation unit.

58. The system of claim 52, wherein: The volume graph generating device generates: an absolute coordinate volume graph, the absolute coordinate volume graph showing, together with the coordinate plane, coordinate values ​​of electrode portions removed in each process and between the processes and coordinate values ​​of remaining electrode portions excluding the removed electrode portions; as well as A relative coordinate scroll graph, wherein the relative coordinate scroll graph displays only the coordinate values ​​of the remaining electrode portions excluding the removed electrode portion on the coordinate plane.

59. The system of claim 58, wherein: The roll map matching unit matches the coordinate values ​​of the relative coordinate roll map of each process before the final process with the coordinate values ​​of the relative coordinate roll map of the final process.

60. The system of claim 52, wherein: The roll map generating device generates each of a roll map with respect to a top surface of the electrode and a roll map with respect to a back surface of the electrode.

61. The system of claim 60, wherein: When the final process is a slotting process, The roll map generating apparatus generates a roll map having a single plane showing only coordinate values ​​on the coordinate plane regardless of the top surface and the back surface of the electrode.

62. The system of claim 52, wherein: The volume graph matching unit is configured as follows: removing from the roll map in each process all coordinate intervals corresponding to actual electrode portions that are cumulatively removed in the series of roll-to-roll processes; as well as The length of the reel in each process is matched with the length of the reel of the final process by correcting the coordinate values ​​of the remaining coordinate intervals after the removal to match the coordinate values ​​of the reel of the final process.

63. The system of claim 62, wherein: When the coordinate starting direction of the reel diagram of the specific process before the final process is opposite to the coordinate starting direction of the reel diagram of the final process, depending on the electrode winding direction in the rewinding machine in the previous process and the electrode unwinding direction in the unwinding machine in the subsequent process, The reel map matching unit matches a starting direction of coordinates of the reel map of the specific process with a starting direction of coordinates of the reel map of the final process.

64. The system of claim 62, wherein: When the top surface of the electrode in the previous process is reversed to the back surface of the electrode in the subsequent process depending on the electrode winding direction in the rewinding machine in the previous process and the electrode unwinding direction in the unwinding machine in the subsequent process, Information about the electrode surface inversion is stored in the volume matching unit, and The roll pattern matching unit accordingly matches the roll pattern of the top surface of the electrode in the previous process with the roll pattern of the back surface of the electrode in the subsequent process according to the information.

65. The system of claim 61, wherein: The reel map matching unit arranges the reel map of the final process and the reel map in each process that matches the reel map of the final process side by side, and displays the arranged reel maps as a superimposed reel map.

66. The system of claim 61, further comprising a display unit configured to display the overlaid volume map.

67. A superimposed reel diagram in which reel diagrams in a series of reel-to-reel processes in which an electrode moving between an unwinder and a rewinder is sequentially and repeatedly subjected to a reel-to-reel process are arranged side by side, in, The roll map in each process before the final process in the roll map is a roll map that is subjected to roll map matching, so that the coordinate values ​​of the roll map in each process match the coordinate values ​​of the roll map of the final process, so that the actual electrode represented by the roll map of the final process matches each actual electrode represented by the roll map of each process before the final process.

68. A computer readable recording medium comprising the overlay volume map of claim 67.

69. A battery manufacturing system, comprising: A slotting controller configured to obtain electrode coordinate information of an electrode line moving in a slotting process and a cell ID of a unit electrode; A calculator configured to calculate a coordinate value of the cell ID according to spacing information and the cell ID, wherein the spacing information is a width of a slotted unit electrode, and the coordinate value of the cell ID is a position of a specific unit electrode moved in the slotting process; a roll map generating unit configured to generate a roll map according to the electrode coordinate information transmitted from the slotting controller, the roll map displaying coordinate values ​​of the positions of the electrodes to identify length changes of the electrodes in an electrode manufacturing process prior to the slotting process; as well as A mapping unit is configured to derive a position of the electrode in the electrode manufacturing process from which the specific unit electrode originates by comparing the coordinate value of the reel map with the coordinate value of the cell ID.

70. A battery manufacturing system, comprising: a plurality of tanks connected between a mixer and a coater using pipelines to sequentially move the electrode slurry supplied from the mixer toward the coater; as well as A controller configured to, after allocating the batch number information of the electrode slurry supplied to each box, identify the batch number information of the electrode slurry to record the batch number information of the electrode slurry, and detect the batch number information of the electrode slurry of the final supply box that supplies the electrode slurry to the coater with reference to the history of the batch number information recorded for each box.

71. A battery manufacturing method, the battery manufacturing method comprising: Identify and record the batch information of the electrode slurry supplied from the mixer; When the electrode slurry is sequentially moved along a plurality of boxes, after allocating the lot number information of the electrode slurry supplied to each box to each box, recording the lot number information of the electrode slurry; as well as The lot number information of the electrode slurry supplied to the final supply tank of the coater is detected with reference to the history of the lot number information recorded for each tank.

72. A battery manufacturing system, the battery manufacturing system comprising: a programmable logic controller (PLC) configured to receive specification information of one or more electrodes from a first sensor, receive position coordinates of the one or more electrodes from a second sensor, and generate identification information of each of the one or more electrodes based on the specification information and the position coordinates; an inspection device configured to inspect the one or more electrodes and generate inspection information; as well as A controller is configured to match and manage the identification information and the inspection information of the one or more electrodes.

73. The battery manufacturing system according to claim 72, wherein: The PLC receives a count value of the number of the one or more electrodes according to the length of one or more electrode contacts from the first sensor, and The count value of the number of electrodes includes a binary coded decimal (BCD) code.

74. The battery manufacturing system according to claim 73, wherein: The PLC receives coordinates of the winding pattern of the one or more electrodes from an encoder mounted on a rewinding machine disposed in a notching device configured to notch the one or more electrodes.

75. The battery manufacturing system according to claim 74, wherein: The PLC generates an ID for each of the one or more electrodes based on specification information of one or more positive terminals and coordinates of the roll diagram.

76. The battery manufacturing system according to claim 75, wherein: The inspection device receives the specification information of the one or more electrodes from the first sensor and adds the specification information to the inspection information of the one or more electrodes.

77. The battery manufacturing system according to claim 76, wherein: The controller matches and manages the ID of the one or more electrodes and the inspection information of the one or more electrodes.

78. The battery manufacturing system according to claim 77, wherein: The controller matches the ID of the one or more electrodes with the inspection information of the one or more electrodes to generate integrated inspection information of the one or more electrodes, and transmits the integrated inspection information to a server.

79. A battery manufacturing method, the battery manufacturing method comprising: receiving specification information of one or more electrodes from a first sensor; receiving position coordinates of the one or more electrodes from a second sensor; generating identification information of each of the one or more electrodes based on the specification information and the position coordinates; inspecting the one or more electrodes and generating inspection information; as well as The identification information and the inspection information of the one or more electrodes are matched and managed.

80. The method for manufacturing a battery according to claim 79, wherein: Receiving the specification information of the one or more electrodes from the first sensor includes receiving a count value of the number of the one or more electrodes according to the length of one or more electrode contacts from the first sensor, and The count value of the number of electrodes includes a binary coded decimal (BCD) code.

81. The method for manufacturing a battery according to claim 80, wherein: Receiving the position coordinates of the one or more electrodes from the second sensor includes receiving coordinates of a roll pattern of the one or more electrodes from an encoder mounted on a rewinder disposed in a notching apparatus configured to notch the one or more electrodes.

82. The method for manufacturing a battery according to claim 81, wherein: Generating the identification information of each of the one or more electrodes based on the specification information and the position coordinates includes generating an ID of each of the one or more electrodes based on specification information of one or more positive terminals and the coordinates of the reel diagram.

83. The method for manufacturing a battery according to claim 82, wherein: The examining the one or more electrodes to generate the examination information includes receiving the specification information of the one or more electrodes from the first sensor and adding the specification information to the examination information of the one or more electrodes.

84. The method for manufacturing a battery according to claim 83, wherein: The matching and managing the identification information and the inspection information of the one or more electrodes includes matching and managing the IDs of the one or more electrodes and the inspection information of the one or more electrodes.

85. The method for manufacturing a battery according to claim 84, wherein: The matching and management of the identification information and the inspection information of the one or more electrodes includes matching the ID of the one or more electrodes with the inspection information of the one or more electrodes to generate integrated inspection information of the one or more electrodes, and transmitting the integrated inspection information to a server.

86. A method for manufacturing a battery, the method comprising: Generate a virtual ID corresponding to the battery cell; switching the virtual ID as a process performed on the battery cell progresses; Matching the switched virtual ID with the process data generated for the battery cell and storing the matching result; Extracting the cell ID of the cell; as well as The process data matched with the virtual ID corresponding to the cell ID is matched with the cell ID, and the matching result is transmitted to an upper control system.

87. The battery manufacturing method according to claim 86, further comprising: After the virtual ID is generated, process operation information indicating the process being performed on the battery cell is matched with the virtual ID.

88. The method for manufacturing a battery according to claim 87, wherein: The switching of the virtual ID includes changing the process operation information matched with the virtual ID when a process being performed on the battery cell is changed.

89. The method for manufacturing a battery according to claim 86, wherein: The process data includes operating results and / or testing results of the process performed on the battery cell.

90. The method for manufacturing a battery according to claim 86, wherein: Extracting the cell ID of the battery cell includes reading the cell ID in the form of a barcode attached to the battery cell.

91. The method for manufacturing a battery according to claim 86, wherein: The process data matched with the cell ID is process data collected in time series in each process performed on the battery cell.

92. The method for manufacturing a battery according to claim 86, wherein: The processes used for the battery cells include a groove and dry NDD process and / or a lamination process.

93. A battery manufacturing system, the battery manufacturing system comprising: a virtual ID generator configured to generate a virtual ID corresponding to a battery cell; a virtual ID manager configured to switch virtual IDs as a process being performed on the battery cell progresses; a process data collector configured to match the switched virtual ID with the process data generated for the battery cell and store the matching result; as well as A main controller is configured to match the process data matched with the virtual ID corresponding to the cell ID extracted from the battery cell with the cell ID to generate process information.

94. The battery manufacturing system according to claim 93, wherein: After generating the virtual ID, the virtual ID manager matches process operation information indicating a process being performed on the battery cell with the virtual ID.

95. The battery manufacturing system according to claim 94, wherein: When the process being performed by the battery cell is changed, the virtual ID manager changes the process operation information matched with the virtual ID.

96. The battery manufacturing system according to claim 93, wherein: The process data includes operating results and / or testing results of the process performed on the battery cell.

97. The battery manufacturing system according to claim 93, wherein: The process data matched with the battery cell ID is process data collected in time series in each process performed on the battery cell.

98. The battery manufacturing system according to claim 93, wherein: The processes used for the battery cells include a groove and dry NDD process and / or a lamination process.

99. The battery manufacturing system of claim 93, further comprising a communicator configured to transmit the process information to an upper control system.

100. A battery manufacturing system, the battery manufacturing system comprising: a first roll map generating unit configured to generate a first roll map for at least one process, the first roll map including coordinate value data indicating a position of an electrode and first data among process data generated as a process performed on the electrode progresses and matched with the coordinate value data; as well as A second roll map generating unit is configured to generate a second roll map for at least one process, wherein the second roll map includes the coordinate value data of the first roll map and the first data, and further includes second data associated with the first data among the process data.

101. The battery manufacturing system according to claim 100, wherein: The process data includes at least one of the following: Equipment data obtained from each process equipment; Process-related inspection and / or measurement data obtained from each process; and Time series data obtained from each process.

102. The battery manufacturing system according to claim 100, wherein: The first data and the second data match the same coordinate value data.

103. The battery manufacturing system according to claim 102, wherein: The second data includes one of the following data: 1) data with a capacity larger than the first data; 2) data processed from said first data; and 3) Data of a type different from the first data.

104. The battery manufacturing system according to claim 100, further comprising a server unit configured to store the second data and transmit the second data to the second volume map generating unit.

105. A battery manufacturing system according to claim 100, wherein the battery manufacturing system matches and manages at least one of data regarding specifications of input materials for manufacturing the electrode, process data for a mixing process for the input materials, and path data regarding a moving path for the mixed input materials to move to an electrode coater, as well as coordinate values ​​of the first roll map and / or the second roll map and data matching the coordinate values.

106. The battery manufacturing system according to claim 100, further comprising a roll-map matching unit, the roll-map matching unit being configured to perform at least one of the following operations: 1) matching the coordinate values ​​of the first reel diagram in the previous process with the coordinate values ​​of the first reel diagram in the subsequent process so that the actual electrode represented by the first reel diagram in the previous process corresponds to the actual electrode represented by the first reel diagram in the subsequent process; and 2) Matching the coordinate values ​​of the first roll diagram in each process with the coordinate values ​​of the first roll diagram in the final process, so that the actual electrode represented by the first roll diagram in the final process among multiple processes corresponds to the actual electrode represented by the first roll diagram in each process before the final process.

107. The battery manufacturing system according to claim 100, further comprising a roll-map matching unit, the roll-map matching unit being configured to perform at least one of the following operations: 1) matching the coordinate values ​​of the second reel diagram in the previous process with the coordinate values ​​of the second reel diagram in the subsequent process so that the actual electrode represented by the second reel diagram in the previous process corresponds to the actual electrode represented by the second reel diagram in the subsequent process; and 2) Matching the coordinate values ​​of the second roll diagram in each process with the coordinate values ​​of the second roll diagram in the final process, so that the actual electrode represented by the second roll diagram in the final process among multiple processes corresponds to the actual electrode represented by the second roll diagram in each process before the final process.

108. A method for manufacturing a battery, the method comprising: generating a first reel map for at least one process, the first reel map including coordinate value data indicating a position of an electrode and first data among process data generated as a process performed on the electrode progresses and matched with the coordinate value data; storing second data associated with the first data among the process data; as well as A second reel map for at least one process is generated by matching the second data with the coordinate value data, the second reel map including the second data in addition to the coordinate value data and the first data of the first reel map.

109. A battery manufacturing system, the battery manufacturing system comprising: a roll map generating unit configured to generate a roll map for each process, the roll map including data indicating coordinate values ​​of positions of electrodes and process data generated and matched with the coordinate values ​​as the process performed on the electrodes progresses; as well as A roll map matching unit, the roll map matching unit is configured to perform at least one of the following operations: 1) matching the coordinate values ​​of the reel diagram in the previous process with the coordinate values ​​of the reel diagram in the subsequent process so that the actual electrode represented by the reel diagram in the previous process corresponds to the actual electrode represented by the reel diagram in the subsequent process; as well as 2) Matching the coordinate values ​​of the roll diagram in each process with the coordinate values ​​of the roll diagram in the final process, so that the actual electrode represented by the roll diagram in the final process among multiple processes corresponds to the actual electrode represented by the roll diagram in each process before the final process.

110. The battery manufacturing system according to claim 109, wherein: The process data includes at least one of the following: Equipment data obtained from each process equipment; Process-related inspection and / or measurement data obtained from each process; and Time series data obtained from each process.

111. The battery manufacturing system according to claim 109, wherein: The volume map generation unit generates at least one of the following: an absolute coordinate roll diagram that displays on the roll diagram coordinate values ​​of electrode portions removed in each process, between processes, or after the final process, and coordinate values ​​of remaining electrode portions excluding the removed electrode portions; as well as A relative coordinate scroll graph, wherein the relative coordinate scroll graph displays only the coordinate values ​​of the remaining electrode portions excluding the removed electrode portion on the scroll graph.

112. The battery manufacturing system according to claim 109, wherein: The scroll map matching unit performs at least one of the following operations: 1) matching the coordinate values ​​of the relative coordinate roll diagram in the previous process with the coordinate values ​​of the relative coordinate roll diagram in the subsequent process; as well as 2) Matching the coordinate values ​​of the relative coordinate roll map in each process before the final process among the plurality of processes with the coordinate values ​​of the relative coordinate roll map in the final process.

113. The battery manufacturing system according to claim 109, wherein: The scroll map matching unit performs at least one of the following operations: a) a reel length matching operation, which is used to match the length of the reel in the previous process with the length of the reel in the subsequent process; b) a coordinate axis matching operation for matching the starting direction of the coordinates of the reel image in the previous process with the starting direction of the coordinates of the reel image in the subsequent process; as well as c) An electrode surface matching operation for matching a roll map of an electrode surface in a subsequent process with a roll map of an electrode surface in a previous process that corresponds to the electrode surface in the subsequent process.

114. The battery manufacturing system according to claim 113, wherein: The reel map matching unit arranges a reel map in a subsequent process and a reel map in a previous process that matches the reel map in the subsequent process side by side, and displays the arranged reel maps as a superimposed reel map.

115. The battery manufacturing system according to claim 109, wherein: The scroll map matching unit performs at least one of the following operations: a) 'Roll length matching operation, used to match the length of the roll in each process with the length of the roll in the final process; b) a coordinate axis matching operation for matching the starting direction of the coordinates of the roll image in each process with the starting direction of the coordinates of the roll image in the final process; as well as c) An electrode surface matching operation for matching the roll map of the electrode surface in the final process with the roll map of the electrode surface in each process corresponding to the electrode surface in the final process.

116. The battery manufacturing system according to claim 115, wherein: The reel map matching unit arranges the reel map in a final process and the reel map in each process that matches the reel map in the final process side by side, and displays the arranged reel maps as a superimposed reel map.

117. The battery manufacturing system according to claim 109, wherein: The roll map generation unit generates a first roll map including data indicating coordinate values ​​of positions of the electrodes and first data among process data generated as a process performed on the electrodes progresses and matched with the coordinate values, and The volume graph matching unit is configured as follows: Matching the coordinate values ​​of the first roll image in the previous process with the coordinate values ​​of the first roll image in the subsequent process; or The coordinate values ​​of the first reel map in each of the plurality of processes are matched with the coordinate values ​​of the first reel map in the final process.

118. The battery manufacturing system according to claim 117, wherein: The roll map generation unit further includes a second roll map generation unit configured to generate a second roll map including the data of the first roll map and also including second data of the process data associated with the first data and matching the coordinate values, and The volume graph matching unit is configured as follows: matching the coordinate values ​​of the second roll image in the previous process with the coordinate values ​​of the second roll image in the subsequent process; or The coordinate values ​​of the second reel map in each of the plurality of processes are matched with the coordinate values ​​of the second reel map in the final process.

119. A battery manufacturing system according to claim 109, wherein the battery manufacturing system matches and manages subsequent process data and previous process data, wherein the subsequent process data matches the coordinate values ​​of the roll diagram in the subsequent process, and the previous process data matches the coordinate values ​​in the previous process that match the coordinate values ​​of the roll diagram in the subsequent process, or Final process data matching the coordinate values ​​of the reel map in the final process and process data in each process matching the coordinate values ​​of each process matching the coordinate values ​​of the reel map in the final process are matched and managed.

120. A battery manufacturing system according to claim 114 or 116, wherein the battery manufacturing system matches and manages at least one of data regarding specifications of input materials for manufacturing the electrode, process data for a mixing process for the input materials, and path data regarding a moving path for the mixed input materials to move to an electrode coater, as well as each matching coordinate value of the superimposed volume diagram and process data in each process that matches the coordinate values.

121. A method for manufacturing a battery, the method comprising: generating a reel map for each process, the reel map including data indicating coordinate values ​​of positions of electrodes and process data generated and matched with the coordinate values ​​as a plurality of processes performed on the electrodes progress; and Do at least one of the following: 1) matching the coordinate values ​​of the reel diagram in the previous process with the coordinate values ​​of the reel diagram in the subsequent process so that the actual electrode represented by the reel diagram in the previous process corresponds to the actual electrode represented by the reel diagram in the subsequent process; as well as 2) Matching the coordinate values ​​of the roll diagram in each process with the coordinate values ​​of the roll diagram in the final process, so that the actual electrode represented by the roll diagram in the final process among multiple processes corresponds to the actual electrode represented by the roll diagram in each process before the final process.

122. A computer-readable recording medium, comprising at least one of the first volume map and / or the second volume map according to any one of claims 100 to 107.

123. A computer readable recording medium comprising a roll map and / or an overlaid roll map according to claim 114 or 116.

124. A battery manufacturing system, the battery manufacturing system comprising: a coordinate value data server configured to store coordinate values ​​indicating a position of an electrode moved in a process performed on the electrode; an identification mark providing device configured to provide identification marks on the electrodes at predetermined intervals; as well as A data management server is configured to match and manage the identification mark and the coordinate value of the coordinate value data server corresponding to the identification mark.

125. The battery manufacturing system of claim 124, wherein: The coordinate values ​​are coordinate values ​​of a winding diagram displayed on a winding diagram simulating the electrode moving between an unwinder and a rewinder.

126. The battery manufacturing system according to claim 125, wherein: The coordinate value data server stores coordinate values ​​of a roll map in a previous process that match coordinate values ​​of a roll map in a subsequent process, or stores coordinate values ​​of a roll map in each process among a plurality of processes that match coordinate values ​​of a roll map in a final process.

127. The battery manufacturing system of claim 125, wherein: The coordinate value data server stores process data matched with the coordinate value of the roll map.

128. The battery manufacturing system of claim 126, wherein: The process data includes at least one of the following: Equipment data obtained from each process equipment; Process-related inspection and / or measurement data obtained from each process; and Time series data obtained from each process.

129. The battery manufacturing system according to claim 125, wherein: The coordinate value data server stores one or more of the following: a) a first roll map including data indicating coordinate values ​​of positions of the electrodes and first data among process data generated as a process performed on the electrodes progresses and matched with the coordinate values; b) a second roll map, the second roll map comprising data of the coordinate values ​​and the first data of the first roll map, and the second roll map further comprising second data associated with the first data and matching the coordinate values; c) a superimposed roll image in which the roll images in the previous process and the subsequent process are arranged side by side with the coordinate values ​​of the roll images matching; or d) Superimposed reel images in which the reel images in each process are arranged side by side with the coordinate values ​​of the reel images in each process matching the coordinate values ​​of the reel images in the final process.

130. The battery manufacturing system according to claim 125, wherein: The coordinate value data server stores at least one of the following: the coordinate value of the roll diagram indicating the position of the electrode moved in the process of providing the identification mark, the coordinate value of the roll diagram indicating the position of the electrode moved in one previous process or multiple previous processes before the process of providing the identification mark, and process data in each process that matches the coordinate value of the roll diagram.

131. The battery manufacturing system according to claim 125, wherein: After the electrode is subjected to a groove forming process for forming an electrode joint, the identification mark is provided on the electrode joint.

132. The battery manufacturing system according to claim 124, wherein: The identification mark is an electrode ID actually marked on the electrode or a virtual electrode ID virtually provided at every predetermined interval.

133. The battery manufacturing system according to claim 132, wherein: The identification mark providing device is an ID marker, and the ID marker is configured to mark the electrode ID on the electrode at predetermined intervals.

134. The battery manufacturing system according to claim 133, wherein: When the electrode ID is marked or the marked ID is identified, a first position coordinate value corresponding to the electrode ID is acquired by means of a coordinate value received by a position measurement sensor.

135. The battery manufacturing system according to claim 134, wherein: The data management server matches and manages the first position coordinate value corresponding to the electrode ID and the coordinate value corresponding to the first position coordinate value of the coordinate value data server and / or process data matching the coordinate value.

136. The battery manufacturing system of claim 132, wherein: The identification mark providing device is a device control device, which is configured to receive specification information of at least one electrode from a first sensor, receive position coordinate values ​​of at least one electrode from a second sensor serving as a position measurement sensor, and generate a virtual electrode ID for each of the at least one electrode based on the specification information and the position coordinate values.

137. The battery manufacturing system according to claim 136, wherein: The device control device receives a count value of the number of the at least one electrode according to the length of at least one electrode contact from the first sensor, and The count value of the number of electrodes includes a binary coded decimal (BCD) code.

138. The battery manufacturing system of claim 134, wherein: The data management server matches and manages the position coordinate value corresponding to the virtual electrode ID and the coordinate value of the coordinate value data server corresponding to the first position coordinate value and / or process data matched with the coordinate value.

139. The battery manufacturing system of claim 124, wherein: The data management server matches and manages at least one subsequent process data generated as a subsequent process performed on the electrode including the identification mark progresses and matched with the identification mark, and the coordinate value of the coordinate value data server and / or process data matched with the coordinate value.

140. The battery manufacturing system according to claim 139 further comprises a subsequent process data matching unit, wherein the subsequent process data matching unit is configured to match the identification mark with the at least one subsequent process data.

141. The battery manufacturing system according to claim 140, wherein: The subsequent process data matching unit provides an upper layer identification mark matched with the identification mark of the electrode to an upper layer component including the electrode provided with the identification mark.

142. The battery manufacturing system according to claim 141, wherein: The upper component is at least one of an electrode assembly including the electrode provided with the identification mark, a battery cell semi-finished product including the electrode assembly, a battery cell including the electrode assembly, a battery cell stack including the battery cell or a battery module including the battery cell stack, and a battery pack including the battery cell stack or the battery module.

143. The battery manufacturing system according to claim 124, wherein: The data management server matches and manages at least one of data regarding specifications of input materials for manufacturing the electrode, process data for a mixing process for the input materials, and path data regarding a moving path for the mixed input materials to move to an electrode coater, as well as the identification mark and the coordinate value of the coordinate value data server.

144. A battery manufacturing method, the electrode manufacturing method comprising: acquiring data indicating coordinate values ​​of a position of an electrode moved in a process; providing identification marks on said electrodes at predetermined intervals; as well as The identification mark and the coordinate value corresponding to the identification mark are matched and managed.

145. The electrode manufacturing method according to claim 144, further comprising: The process data matched with the coordinate value and the subsequent process data matched with the identification mark are matched and managed based on the coordinate value and the identification mark.

146. An electrode comprising an electrode identification mark according to any one of claims 124 to 143.

147. An upper component comprising an electrode according to claim 146.

148. The upper assembly of claim 147, wherein: The upper component is at least one of an electrode assembly including the electrode provided with the electrode identification mark, a battery cell semi-finished product including the electrode assembly, a battery cell including the electrode assembly, a battery cell stack including the battery cell or a battery module including the battery cell stack, and a battery pack including the battery cell stack or the battery module.

149. An upper layer component according to claim 147, further comprising an upper layer identification mark that matches the electrode identification mark.

150. An electrode comprising an electrode identification mark that matches at least one of a coordinate value of a roll map indicating a position of the electrode and process data that matches the coordinate value of the roll map.

151. The electrode according to claim 150, wherein Based on the electrode identification mark and the coordinate value of the roll map, the process data matching the coordinate value of the roll map is matched with the subsequent process data by means of the electrode identification mark matching the subsequent process data.

152. An upper component comprising an electrode according to claim 150 or 151.

153. The upper assembly of claim 152, wherein: The upper component is at least one of an electrode assembly including the electrode provided with the electrode identification mark, a battery cell semi-finished product including the electrode assembly, a battery cell including the electrode assembly, a battery cell stack including the battery cell or a battery module including the battery cell stack, and a battery pack including the battery cell stack or the battery module.

154. An upper layer assembly according to claim 152, further comprising an upper layer identification mark that matches the electrode identification mark.

155. A non-transitory computer-readable recording medium, the non-transitory computer-readable recording medium comprising a program for executing a volume map generation method, the volume map generation method comprising: obtaining inspection and / or measurement data by inspecting and / or measuring an electrode moving between an unwinder and a rewinder; Obtaining the position of the moving electrode as a coordinate value; as well as A volume map is generated by displaying at least some of the inspection and / or measurement data and the coordinate values ​​on a plane simulating the moving electrode.

156. A non-transitory computer-readable recording medium, the non-transitory computer-readable recording medium comprising a program for executing an electrode missing amount measuring method, the electrode missing amount measuring method comprising: marking a plurality of reference points at predetermined intervals between a beginning portion and an end portion of an electrode conveyed between an unwinder and a rewinder; Using a reference point measuring device to measure a reference point on the electrode and derive a coordinate value of the reference point; as well as When a reference interval between a start portion of the electrode and an end portion of the electrode changes from a set reference point interval due to a missing portion of the electrode, a missing amount of the electrode is calculated by comparing the derived reference point coordinate value with the set reference point coordinate value.

157. A non-transitory computer-readable recording medium comprising a program for a battery manufacturing method, the battery manufacturing method comprising: When the electrode slurry is sequentially conveyed along a plurality of tanks, identifying and recording the batch number information of the electrode slurry supplied from the mixer; Assigning and recording, for each box, batch number information of the electrode slurry supplied to each box; as well as The lot number information of the electrode slurry of the final supply tank that supplies the electrode slurry to the coater is detected with reference to the history of the lot number information recorded for each tank.

158. A non-transitory computer-readable recording medium comprising a program for executing a battery manufacturing method, the battery manufacturing method comprising: receiving specification information of at least one electrode from a first sensor; receiving position coordinates of the at least one electrode from a second sensor; generating identification information of each of the at least one electrode based on the specification information and the position coordinates; generating inspection information by inspecting the at least one electrode; as well as The identification information and the inspection information of the at least one electrode are matched and managed.

159. A non-transitory computer-readable recording medium comprising a program for executing a battery manufacturing method, the battery manufacturing method comprising: Generate a virtual ID corresponding to the battery cell; switching the virtual ID as a process performed on the battery cell progresses; Matching and storing the switched virtual ID and the process data generated for the battery cell; Extracting the cell ID of the battery cell; as well as The process data matched with the virtual ID corresponding to the cell ID is matched with the cell ID, and the matching result is transmitted to an upper control system.

160. A non-transitory computer-readable recording medium comprising a program for executing a battery manufacturing method, the battery manufacturing method comprising: generating a first reel map for at least one process, the first reel map including coordinate value data indicating a position of an electrode and first data among process data generated as a process performed on the electrode progresses and matched with the coordinate value data; storing second data associated with the first data among the process data; as well as A second reel map for at least one process is generated by matching the second data with the coordinate value data, the second reel map including the second data in addition to the coordinate value data and the first data of the first reel map.

161. A non-transitory computer-readable recording medium comprising a program for executing a battery manufacturing method, the battery manufacturing method comprising: acquiring coordinate value data indicating a position where the electrode moves during the process; providing identification marks at predetermined intervals on the electrodes; as well as The identification mark and the coordinate value corresponding to the identification mark are matched and managed.

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