Map of an electrode coating process and system for generating a map

Abstract

This invention relates to roll patterns for electrode coating processes and a system for generating roll patterns. A roll pattern for an electrode coating process according to this technology includes: a roll pattern strip displayed on a screen synchronously with the movement of an electrode in a roll-to-roll configuration, wherein the electrode is coated with electrode slurry while moving between an uncoiler and a rewinder, and the roll pattern strip is displayed in strip form by simulating the electrode in the roll-to-roll configuration; and a display portion configured to visually display at least one of quality-related data and defect-related data measured during the electrode coating process at a position on the roll pattern strip corresponding to the location of measurement data in the electrode. This technology also relates to a roll pattern generation method and system for generating roll patterns for electrode coating processes.

Description

[0001] This invention is a divisional application of the invention patent application No. 202280005206.6 (International Application No.: PCT / KR2022 / 003446; Application Date: March 11, 2022; Invention Title: Roll Pattern, Roll Pattern Creation Method and Roll Pattern Creation System for Electrode Coating Process). Technical Field

[0002] This invention relates to a roll pattern of an electrode coating process and a method for generating the roll pattern. More specifically, this invention relates to a roll pattern of an electrode coating process and a method for generating the roll pattern, which allows for a clear understanding of quality and defect information of the electrode coating process by visualizing data on quality or defects measured by various measuring instruments during the electrode coating process on a roll pattern simulating the shape of the electrode.

[0003] The present invention also relates to a system for generating roll patterns for electrode coating processes.

[0004] This application claims the benefit based on priority of Korean Patent Application No. 10-2021-0039801, filed on March 26, 2021, the entire contents of which are incorporated herein by reference. Background Technology

[0005] With the technological advancements in mobile devices and the increasing demand for them, the demand for rechargeable batteries is also rapidly increasing. Among rechargeable batteries, lithium-ion batteries are widely used as energy sources for various electronic products and mobile devices due to their high energy density, high operating voltage, and excellent storage and lifespan characteristics.

[0006] The so-called electrode process for manufacturing electrodes for lithium secondary batteries includes a coating process that forms positive and negative electrodes by coating the surface of a metal electrode plate, which serves as a current collector, with an active material and some kind of insulating material; a roll coating process for coating electrodes; and a cutting process for cutting roll-coated electrodes according to size.

[0007] In the electrode manufacturing process, electrode tabs are formed through a grooving process. Then, a secondary battery is fabricated using the following assembly process: a separator is inserted between the anode and cathode to form an electrode assembly; the electrode assembly is stacked or folded to encapsulate it in a bag, can, etc., and an electrolyte is injected. Afterward, the assembled secondary battery undergoes an activation process that imparts battery characteristics by charging and discharging, becoming the final secondary battery as a finished product.

[0008] When the inspection device detects foreign matter mixed in the active material layer or defective coating in the electrode coating process, it marks the defect on the electrode according to conventional techniques, or the operator affixes a defect mark to the electrode, so that the defective part can be removed in the coating process or subsequent processes (see Patent Document 1).

[0009] However, when marking is done directly on the electrodes, it is difficult to mark the coated portions, so marking can only be done on the uncoated portions. Therefore, for example, when an appearance defect appears in the coated portion, marking is done on the uncoated portion instead of the coated portion with the actual defect, making it difficult to pinpoint the exact location of the fault or defect. Furthermore, Patent Document 1 employs a physical marking process that directly marks the electrodes with information related to quality, defects, etc. Consequently, once a secondary battery with electrodes is manufactured, even if defects occur in subsequent processes due to defects caused by the electrode process, it is difficult to identify the portion in the electrode process that actually caused the defect. In other words, after the physically marked electrodes are used for assembly or after they disappear, it is difficult to analyze the quality correlation between the electrode process or electrode coating process and subsequent processes.

[0010] Meanwhile, a technique has been proposed to mark the corresponding secondary battery with ink to indicate whether there are defects after the electrode process is completed in the secondary battery assembly line so that the working history can be checked on a per-secondary-battery basis (see Patent Document 2).

[0011] Because the aforementioned conventional techniques involve marking after secondary battery assembly, the secondary battery assembly process and subsequent history can be examined. However, it is impossible to examine historical information and similar information regarding defects in the electrode coating process, which is a preceding process. In other words, Patent Document 2 relates to a technique for physically marking the secondary battery during or after secondary battery assembly, and therefore is unrelated to the product history of quality and defects in the electrode coating process. Consequently, it is also impossible to analyze the quality relationship between the electrode process and the assembly process.

[0012] Furthermore, none of the aforementioned patent documents provide non-defect information, such as information regarding the loading amount, size, and width of the electrodes during the manufacturing process. For example, there might be no defects in the electrode coating process, but defects such as fire or similar issues could occur in subsequent processes or processes using rechargeable batteries. In such cases, it would be necessary to trace the battery's product history back to the electrode coating process to find the cause of the defect, but the techniques proposed in the aforementioned patent documents cannot be used to find the cause.

[0013] As a result, in order to find out the cause of defects that occur in subsequent processes of secondary batteries or after the assembly process of secondary batteries, it is necessary to develop a technology for displaying or storing historical information on quality or defects in the electrode coating process, which allows for quality relationship analysis in relation to subsequent processes.

[0014] [Existing technical documents]

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

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

[0017] Technical issues

[0018] The present invention was made to solve the above problems. One object of the present invention is to provide a roll plot of an electrode coating process and a method for generating the roll plot, which allows for a clear understanding of quality and defect information in the electrode coating process by visualizing quality-related or defect-related data of the electrode coating process on a roll plot simulating the shape of the electrode.

[0019] Another object of the present invention is to provide a system for generating roll patterns for an electrode coating process.

[0020] Technical solution

[0021] To address the aforementioned problems, the roll pattern of the electrode coating process according to the present invention comprises: a roll pattern strip, displayed on a screen synchronously with the movement of the electrode, wherein the electrode is coated with electrode slurry while moving between an uncoiler and a rewinder in a roll-to-roll state, and the roll pattern strip is displayed in the form of a strip by simulating the electrode in a roll-to-roll state; and a display portion, configured to visually display at least one of quality-related data and defect-related data measured in the electrode coating process at a predetermined position on the roll pattern strip corresponding to the position of the measurement data in the electrode.

[0022] As an example, the longitudinal dimensions of the electrodes can be displayed at predetermined intervals along the longitudinal direction of the scroll strip.

[0023] As a specific example, detailed data can be displayed together with the roll chart bar, including the batch number of the electrodes installed between the uncoiler and rewinder in roll-to-roll mode.

[0024] Specifically, at least one of the quality-related data and defect-related data can be measured by a predetermined measuring instrument or operator and then displayed.

[0025] As a specific example, quality-related or defect-related data may be 1) data on at least one of electrode size and width, 2) data on mismatch between coated and uncoated electrode portions, 3) electrode slurry loading data, 4) electrode appearance defect data, 5) data on the location of disconnected sections or inter-electrode connections, 6) data on the location of sample inspection units, 7) data on discarded electrode sections, 8) data on insulation quality or defects in the insulation coating process performed after electrode slurry coating, and 9) other defect data.

[0026] As an example, when a specific range of the scroll bar on the screen is specified and clicked, at least one of the quality-related data and defect-related data in the range on the electrode corresponding to that specific range can be visually displayed on the screen separately from the scroll bar.

[0027] As another example, when the electrode appearance defect data on the roll chart is clicked, an image of the electrode's appearance taken by the appearance inspection device can be visually displayed on the screen separately from the roll chart.

[0028] As a specific example, when displaying an appearance image, detailed information can be displayed along with the external image, including the location coordinates of appearance defects captured by the appearance inspection device.

[0029] As an example, a rollout can be displayed on the screen for each channel on the electrode where the electrode paste is applied.

[0030] As another example, when the electrode is a double-sided electrode, rollouts of the top and bottom surfaces of the double-sided electrode can be displayed on the same screen.

[0031] As another example, at least one of the following data can be visually displayed on the screen parallel to the scroll in the longitudinal direction of the scroll: data on the input status of the insulating material, electrode paste and electrode foil input to the electrode coating process, and data on the loading amount of the electrode paste input to the electrode coating process.

[0032] As another aspect of the present invention, a method for generating a roll pattern of an electrode coating process includes: acquiring at least one of quality-related data and defect-related data in the electrode coating process by examining an electrode coating process in which electrode paste is applied to an electrode, the electrode moving between an uncoiler and a rewinder in a roll-to-roll state; transmitting the acquired data along with data regarding the location of the acquired data in the electrode to a server; and displaying a roll pattern bar having a bar shape on a screen synchronously with the movement of the electrode between the uncoiler and the rewinder via a data processing system interconnected with the server, the roll pattern bar simulating the electrode in the roll-to-roll state, and visually displaying at least one of the quality-related data and defect-related data of the electrode coating process at a position on the roll pattern bar corresponding to the data regarding the position in the electrode.

[0033] As an example, the method may further include: when the electrode roll is installed between the uncoiler and rewinder in a roll-to-roll state before the electrode coating process, an electrode roll information registration operation is performed to input detailed data including the electrode batch number into the server, and the detailed data can be compared with the roll... Figure 1 It will be displayed on the screen.

[0034] As another example, when a pre-defined measuring instrument or operator inspects the electrode coating process, at least one of quality-related data and defect-related data can be obtained, and the data obtained by the operator can be transmitted to the server through manual input by the operator.

[0035] As a specific example, the predetermined measuring instrument may be at least one of an electrode slurry loading measuring instrument, a size and width measuring instrument, and a visual inspection device.

[0036] As an example, position data based on the longitudinal direction of the electrodes can be detected by an encoder installed on an uncoiler or rewinder.

[0037] As a more specific example, positional data based on the electrode width direction can be detected by a predetermined measuring instrument used to inspect the electrode coating process.

[0038] As an example, the method may further include: comparing quality-related data or defect-related data with quality data stored in a database, said database being installed in or interconnected with a data processing system, and marking on roll chart bars the quality-related data or defect-related data that deviates from normal quality data as a result of the comparison, in order to visually distinguish it from other parts.

[0039] As another example, the method may further include: visually displaying on a screen at least one of the following data parallel to the roll plot in the longitudinal direction of the roll plot: data on the current input status of the insulating material, electrode paste, and electrode foil input to the electrode coating process, and data on the electrode paste loading amount input to the electrode coating process.

[0040] As another aspect of the invention, a system for generating a roll pattern of an electrode coating process includes: a measuring device configured to inspect the electrode coating process, acquire at least one of quality-related data and defect-related data of the coating process, and transmit the acquired data, along with data regarding the location of the acquired data in the electrode, to a server; a server configured to store the data received from the measuring device; a data processing system configured to interconnect with the server to display a roll pattern strip having a bar shape in synchronization with the movement of the electrode between an uncoiler and a rewinder, the roll pattern strip simulating the electrode in a roll-to-roll state, and the data processing system configured to generate the roll pattern based on the quality-related or defect-related data received from the server and the data regarding the location of the acquired data in the electrode, wherein the roll pattern visually displays at least one of the quality-related data and defect-related data at a position on the roll pattern strip corresponding to the data regarding the position in the electrode; and a display unit connected to the data processing system and configured to display the roll pattern on a screen.

[0041] Beneficial effects

[0042] According to the present invention, quality-related or defect-related data can be displayed on a roll-to-roll strip, which is shown on the screen to simulate a roll-to-roll state, so that the quality-related or defect-related data of the electrode coating process can be easily understood visually at a glance.

[0043] Furthermore, according to the present invention, instead of directly marking the electrodes or secondary batteries, quality-related or defect-related data are displayed on a scroll bar shown on the screen. Accordingly, quality-related or defect-related data in both coated and uncoated portions can be accurately displayed.

[0044] Furthermore, instead of directly labeling electrodes or batteries, the data is displayed on the screen as roll charts. Consequently, as long as the batch number of the battery or electrode is known, even when the electrode is used for assembly or in subsequent processes to manufacture a battery, the cause of post-assembly failures or defects can be easily identified from the roll chart data of the corresponding electrode. Therefore, inter-process quality relationship analysis can be performed with high accuracy. Attached Figure Description

[0045] Figure 1 This is a schematic diagram illustrating the changes in the risk range based on the quality relationship analysis between electrode processes and the final product.

[0046] Figure 2 This is a diagram illustrating a roll-to-roll drawing of an electrode coating process according to an embodiment of the present invention.

[0047] Figure 3 This is a diagram illustrating a roll-to-roll drawing of an electrode coating process according to another embodiment of the present invention.

[0048] Figure 4 This is a flowchart illustrating a roll-up diagram of an electrode coating process according to an embodiment of the present invention.

[0049] Figure 5 This is a schematic diagram illustrating a system for generating an electrode coating process according to the present invention.

[0050] Figure 6 This is a schematic diagram of a data visualization apparatus for generating roll patterns of electrode coating processes according to the present invention. Detailed Implementation

[0051] The invention will now be described in detail with reference to the accompanying drawings and several embodiments. These embodiments are exemplary and are set forth herein to aid in understanding the invention. The drawings are not drawn to scale, and the dimensions of some components may be exaggerated for ease of understanding.

[0052] Since the present invention can be modified and has various forms, specific embodiments will be illustrated and described in detail in the accompanying drawings. However, these embodiments are not intended to limit the invention to the specific forms, but rather to encompass all variations, equivalents, and substitutions within the spirit and technical scope of the invention.

[0053] Figure 1 This is a schematic diagram illustrating the changes in the risk range based on the quality relationship analysis between electrode processes and the final product.

[0054] like Figure 1 As shown in (a), the final product (secondary battery) is manufactured using the product (electrode) produced in the electrode process. When a defect occurs in the final product, in order to find the cause of the defect, it is sometimes necessary to examine the manufacturing history. However, when information about the manufacturing history of the product in the electrode process is unavailable or insufficient, it is difficult to know which electrode process produced the defective final product. Accordingly, in order to prevent the same defect from recurring, in some cases, it is necessary to include other final products as well as the defective product in the risk range where defects may occur, and discard all products in the risk range.

[0055] On the other hand, when sufficient information about the manufacturing history of the product in the electrode process exists, it can be based on, for example... Figure 1The information shown in (b) can be used to reduce the scope of risk and, correspondingly, reduce the number of good products to be discarded. In particular, electrodes are manufactured through various processes such as electrode coating, rolling, and cutting. Consequently, unless product history information for each process is clearly recorded or preserved, it may be difficult to pinpoint the cause of defects related to subsequent processes.

[0056] Therefore, it is necessary to develop a technology for recording information about product quality or defects in electrode processes (especially electrode coating processes that determine electrode quality) and for tracking and analyzing the quality relationship between electrode processes and subsequent processes or final products.

[0057] Furthermore, as mentioned above, due to the physical limitations of the electrode space, there are limitations to directly marking electrodes coated with electrode slurry with all defect information. Additionally, in some cases, information related to the quality of defect-free electrodes in the coating process may be needed to identify the cause of unexpected failures in subsequent processes or in the process of using the finished secondary battery.

[0058] Therefore, the inventors have developed a roll pattern that displays quality-related and defect-related information in the electrode coating process on roll pattern strips (rather than directly on the electrode). The roll pattern overcomes the limitations of related technologies and is very effective in analyzing quality relationships between processes. The roll pattern strips simulate electrodes coated with electrode paste or insulating material.

[0059] Figure 2 This is a diagram 100 illustrating an electrode coating process according to an embodiment of the present invention.

[0060] The roll pattern 100 of the electrode coating process according to the present invention includes a roll pattern bar 110 and a display portion. The roll pattern bar 110 is displayed in a bar shape by simulating the electrodes in a roll-to-roll state, wherein at least one of quality-related data and defect-related data measured in the electrode coating process is visually displayed on the roll pattern bar 110.

[0061] The roll pattern strip 110 simulates the actual electrode being installed and moved between the uncoiler and rewinder in a roll-to-roll configuration. The start and end points of the roll pattern strip 110, as well as a portion of the roll pattern strip 110 between the start and end points, are displayed on the screen synchronously with the path of the electrode moving between the uncoiler and rewinder. For example, when the length of the electrode roll to be coated is 3000 m, the roll pattern strip 110 simulating the electrode is also scaled down to a predetermined ratio and displayed on the screen. Furthermore, when a specific electrode roll is installed between the uncoiler and rewinder, detailed information including the batch number, the width of the electrode roll, etc., can be obtained. Therefore, a roll pattern strip 110 with a length and width scaled down to a predetermined ratio can be displayed on the screen, because not only the length of the electrode (roll) but also its width is scaled down to a predetermined ratio. Accordingly, the length and width of the roll pattern strip 110 correspond to the length and width of the actually moving electrode at a predetermined ratio. Furthermore, when the specific location within the electrode is indicated by coordinates, for example, in units of the electrode's length and width, the coordinates can also be scaled down at a predetermined ratio and displayed on the scroll bar 110. Figure 2 In the figure, the longitudinal dimension (in units of 100 m) 140 of the electrode is displayed at predetermined intervals in the longitudinal direction of the scroll bar 110.

[0062] Furthermore, the coating strip 110 is synchronized with or synchronized with the electrode (path) that actually moves between the uncoiler and rewinder during coating. Accordingly, even when coating is performed to adjust coating conditions before actual coating is performed, the coating state of the corresponding portion can be displayed on the coating strip 110. Therefore, the coating strip 110 can be divided into a condition adjustment section A for adjusting coating conditions and a mass production section B, in which actual coating is performed under the adjusted coating conditions in the mass production section B.

[0063] When an electrode is broken during the coating process and there is a section for connecting the broken electrode (break data 122), the break data 122 can be displayed on the roll strip 110.

[0064] Although the roll chart 110 represents the electrode path synchronously with the actual electrode movement, the portion shown on the roll chart 110 is only a part of the data displaying the quality-related or defect-related data of the actual electrode coating process. In this specification, "quality-related or defect-related data of the electrode coating process" includes not only data on actual defects, such as appearance defects, insulation defects, mismatch between coated and uncoated electrode portions, but also data within the normal range, such as loading data, dimensional and width data, and data on electrode positions used for sample inspection. In other words, theoretically, all data measured by the measuring instrument can be displayed on the roll chart as long as a measuring instrument is available to measure the specific quality in the electrode coating process. Accordingly, in this specification, "quality-related or defect-related data of the electrode coating process" includes normal data as well as data on defects, and additionally indicates all quality-related data that can be quantified or visually displayed on the roll chart.

[0065] In this specification, "visually displayed" data or "visualization" of data can be defined as the visual identification and representation of corresponding data on a roll strip of shape, simulating an electrode, using at least one of shape, color, size, pattern, contrast, transparency, various symbols, numbers, letters, and other visually recognizable elements. Furthermore, not only portions displayed with shape, color, etc., at specific locations on the roll strip, but also portions visually displayed with shape, color, etc., within a specific area or the entire area of ​​the roll strip can be defined as "representations of data visually shown." For example, when data regarding electrode slurry loading is represented by color or similar means across the entire roll strip, the represented portion may not be part of the roll strip, but rather the entire roll strip. Although each represented portion is shaded in the accompanying drawings of this specification for distinction, the corresponding represented portions may also be colored for distinction.

[0066] Since the roll pattern strip 110 of the present invention simulates the actual coated electrode, it is preferably used together with the roll pattern strip 110 to display detailed information of the actual electrode (roll) installed between the uncoiler and the rewinder.

[0067] exist Figure 2At the top of the screen, in addition to the batch number of the electrode roll, detailed data 130 is displayed regarding the production line, process, production equipment, electrode sides, etc. Based on the detailed data 130, not only can the previous process history information of the electrode roll provided in the coating process be obtained, but also additional coating-related information (such as which production line or equipment performed the corresponding coating process, whether single-sided or double-sided coating of the electrode, etc.) or detailed information about the electrode roll can be obtained. When keywords related to the production line, process, production equipment, or electrode sides are entered by clicking the query button displayed in the upper right corner of the screen, a roll chart 100 or roll chart bar corresponding to the menu can be displayed on the screen.

[0068] At least one of the quality-related or defect-related data 120 displayed on the roll sheet 110 can be measured by a predetermined measuring instrument or operator. In other words, data acquired by measuring instruments (such as load thickness measuring instruments, visual inspection devices, etc.) during the electrode coating process can be displayed on the roll sheet 110. Additionally, defects detected by the operator with the naked eye during the electrode coating process, data 122 on disconnected sections where electrodes are cut and manually connected, etc., can also be manually entered into a server or similar and displayed as specific data on the roll sheet 110. Thus, according to the present invention, not only data automatically acquired by measuring instruments can be displayed on the roll sheet 100, but also quality-related or defect-related data acquired by the operator during the electrode coating production line can be displayed, thereby making it easier to track quality relationships.

[0069] Now refer to Figure 2 This section describes in detail the quality-related or defect-related data that can be displayed on or obtained from the roll drawing according to embodiments of the present invention. Figure 2 The quality-related or defect-related data 120 displayed on the roll bar 110 are: 1) dimension / width data regarding at least one of electrode size and width 125; 2) mismatch data regarding mismatch between coated electrode portions and uncoated electrode portions 126; 3) loading data 121; 4) appearance defect data 123; 5) disconnection data regarding the location of disconnected sections or inter-electrode connections 122; 6) sample inspection data regarding the location of sample inspection units 129; 7) data regarding the location of electrode discarded sections; 8) insulation appearance data 124 and insulation defect data 127 regarding the insulation material coating process performed after electrode slurry coating; and 9) other defect data 128.

[0070] To display quality-related or defect-related data 120, the data name, represented by a specific color, form, shape, etc., can be simply displayed at the top of the screen. The actual data displayed in such color, form, and shape can be displayed at a specific location on the scroll bar 110 or within a specific area of ​​the scroll bar 110.

[0071] Specifically, when the size or width of the electrode deviates from the normal range, the relevant size / width data 125 can be displayed on the roll chart.

[0072] Furthermore, mismatch data 126 regarding the deviation of the width of the coated and uncoated portions from a set range can also be displayed on the roll plot.

[0073] Furthermore, the loading data 121 regarding normal electrode slurry loading 121a, insufficient electrode slurry loading 121b, or excessive electrode slurry loading 121c can be displayed with shading marks within a specific range on the roll bar 110.

[0074] Furthermore, the appearance defect data 123 can be displayed as circles at specific points on the roll bar 110.

[0075] Furthermore, disconnected segment data 122 is displayed at the left end of scroll bar 110. The electrode disconnected at disconnected segment data 122 is connected to a coupling component such as polyethylene terephthalate (PET). The scroll can show cases where electrodes are directly connected without any coupling components. When an operator performs such electrode connections, the operator can directly input the corresponding segment data or location information into the server, and the data or location information will be displayed on scroll 100.

[0076] Furthermore, sample inspection data 129 provided for sample inspection can also be displayed on roll 100.

[0077] Although Figure 2 Although not shown in the diagram, data regarding discarded sections of the electrode can be displayed on the roll drawing. For example, the outermost section of the coated electrode is cut off and discarded. The roll drawing 100 of the present invention can even display information about such discarded sections.

[0078] Since the electrode coating process involves not only coating the electrode slurry but also coating the boundary between the coated and uncoated areas with insulating material, data regarding insulation defect data 127 or insulation appearance data 124 can be displayed on the roll sheet 110. In this respect, the "electrode coating process" in this specification includes "coating of insulating material" in addition to "coating of electrode slurry".

[0079] Furthermore, additional defect data 128, concerning defects other than appearance or insulation defects, can be displayed on roll sheet 110. This additional defect data 128 corresponds to other defects when displayed during the electrode coating process. However, if other defects become specific defects after coating is completed or in subsequent processes, they can be changed to specific defects and displayed on roll sheet 100. This additional defect data can be important for identifying the cause of any defects that occur in subsequent processes.

[0080] When quality-related or defect-related data 120 are displayed synchronously with the electrode path on the roll pattern bar 110 as described above, historical information related to the quality of the electrode coating process can be identified.

[0081] Moreover, such as Figure 2 As shown, when a specific range of the scroll bar 110 on the screen is specified and clicked, at least one of the quality-related or defect-related data 120 corresponding to that specific range on the electrode range can be visually displayed on a screen separate from the scroll bar 110. When clicked Figure 2 When mismatch data 126 is displayed in the roll chart bar, detailed information 150 regarding mismatch data 126, load data 121 in the mismatched section, and size / width data 125 can be viewed on the left side below the roll chart bar 110. Such a range can be specified by clicking while moving the query bar, and defective sections can be specified in length units (e.g., 1 m) to examine detailed data for the corresponding range. Although only the load on one side of the electrode is shown above the roll chart bar 110, the roll chart can be configured to examine the load on both the top and bottom surfaces of the electrode in the detailed information.

[0082] Simultaneously, when the appearance defect data 123 on the roll chart bar 110 is clicked, the appearance image 163 of the electrode captured by the appearance inspection device can be visually displayed on the screen separately from the roll chart bar. The appearance image 163 shown by clicking the appearance defect data 123 is enlarged and displayed on the right side below the roll chart bar. Moreover, when displaying the appearance image, detailed information 162 can also be displayed on the screen along with the appearance image 163. The detailed information 162 includes the location coordinates of the appearance defect imaged by the appearance inspection device. The detailed information 162 may include information about the batch identifier (ID) of the electrode targeted by the roll chart bar, the ID of the appearance inspection device, the type of appearance defect, the electrode channel, location coordinates, grade, diameter, and the date of occurrence of the appearance defect. Since this information is stored in the server, it can be retrieved from the server by clicking the appearance defect image on the roll chart bar and displayed separately on the screen. In this way, according to this embodiment, appearance information 160 including the appearance image 163 and the detailed information 162 about the appearance defect can be displayed separately on the screen.

[0083] Figure 2 The roll pattern 100 of the embodiment shown is displayed on the screen for each channel L1 and L2 on the electrode where the electrode paste is applied. Since the coated portions of the electrode with electrode paste can be formed on the electrode foil at certain intervals or in a certain pattern, roll pattern 100 can be generated for each of the channels L1 and L2 coated with electrode paste. Figure 2 shows roll patterns for two channels L1 and L2.

[0084] Figure 3 This is a diagram 200 illustrating an electrode coating process according to another embodiment of the present invention.

[0085] The roll pattern 200 of this embodiment is a roll pattern of a double-sided electrode having a top surface T and a bottom surface B, both coated with electrode paste. On the same screen, roll patterns 200 for the top surface T and bottom surface B of the double-sided electrode are displayed in the upper and lower portions of the screen, respectively. Accordingly, quality-related or defect-related data 220 relating to quality or defects, which are related to the coating of electrode paste or insulating material applied to both surfaces, can be clearly understood by comparison with each other.

[0086] Furthermore, in the roll diagram 200 of this embodiment, the current coating material input state 250 and loading amount data (chart) 260 are visually displayed on the screen parallel to the roll diagram 200 in the longitudinal direction of the roll diagram. The current coating material input state 250 is the input state of the insulating material, electrode paste and electrode foil input to the electrode coating process, and the loading amount data (chart) 260 is the loading amount of the electrode paste input to the electrode coating process.

[0087] At the top of the screen, the insulating material, electrode paste, and electrode foil input to the electrode coating process are displayed. Strips representing the electrode foil, electrode paste, and insulating material extend from left to right on the screen, parallel to the scroll pattern 200 in its longitudinal direction. Correspondingly, portions of the strips that do not extend to the desired area indicate that the corresponding material (electrode foil, electrode paste, or insulating material) has not been input into the electrode coating process. As a result, from the current coating material input state 250 regarding such input material states, it can be seen which specific material has been introduced into the electrode coating process.

[0088] In this embodiment, loading amount data 221 regarding the loading amount of electrode slurry input to the electrode coating process is displayed on the roll chart in the longitudinal direction of the roll chart. However, the loading amount data 221 is displayed separately from and parallel to the roll chart in the longitudinal direction of the roll chart, below the roll chart bars. Since this data shows the distribution of loading amount data (chart) 260 according to the electrode length as a graph, information about excessive or insufficient loading can be easily seen. Moreover, the loading amount values ​​can be displayed together as needed, so information about the loading amount can be seen intuitively.

[0089] exist Figure 3 At the top of the screen, in addition to the batch number of the electrode roll, detailed data 230 is displayed regarding the model, process, production equipment, channel number, and side profile of the electrode roll. According to this embodiment, in addition to the detailed data 230, the top of the screen displays menus 231 related to the input state (input), the electrode (roll pattern) produced from the input material (output), and the measured value; menu 232 related to electrode side profile selection; menu 233 related to screen zooming in or out; and menu 234 related to other measured value options. By selecting such menus, various types of roll patterns 200 suitable for the corresponding menu can be displayed on the screen.

[0090] At the top of the roll chart screen in this embodiment, for easy differentiation, data names related to loading amount and defects, data names related to surface defects, and data names related to sample inspection are displayed respectively. These data names allow for easy distinction of the data types displayed above the roll chart bar.

[0091] exist Figure 3 The roll bar displays: 1) Dimension / width data for at least one of electrode size and width 225; 2) Mismatch data for mismatch between coated and uncoated electrode portions 226; 3) Loading amount data 221; 4) Appearance defect data 223; 5) Polyethylene terephthalate break section data 222a or inter-electrode connection data 222b for the location of break sections or inter-electrode connections; 6) Sample inspection data for the location of sample inspection units 229; 7) Data for the outermost discard section of the electrode discard section 222c; 8) Appearance insulation defect data for insulation quality or defects in the insulation material coating process performed after electrode slurry coating 227; and 9) Other defect data.

[0092] When the size or width of the electrode deviates from the normal range, the size / width data 225 for this is displayed as a quadrilateral on the roll plot, and the mismatch data 226 for the mismatch is also displayed as a thick quadrilateral.

[0093] According to this embodiment, loading data 221 regarding the electrode slurry loading amount is displayed in more detail. In other words, the loading data 221 is displayed within a specific range on the scroll bar 210 as normal condition 221a, insufficient condition 221b or 221c, or excessive condition 221d or 221e.

[0094] Electrode appearance defects are displayed as circles, black circles, or black bars at specific points on the roll pattern 210. In this embodiment, appearance defect data 223 is subdivided into pinholes, lines, and pits, and is displayed in different shapes on the roll pattern 200.

[0095] Furthermore, it can display polyethylene terephthalate (PET) disconnection segment data 222a and electrode connection data 222b. The electrode disconnected at PET disconnection segment data 222a is connected to a coupling component such as PET. Figure 3 The scroll diagram shows the PET connection segment.

[0096] Furthermore, defect display (automatic) data 228a and defect display (manual) data 228b are displayed on the roll chart. Defect display (automatic) data 228a represents defective sections measured and marked by, for example, a measuring instrument, while defect display (manual) data 228b is manually entered by the operator for indication. Since the start portion S and end portion E of each section are displayed on the roll chart, information about the length, start point, and end point of the corresponding section can be seen.

[0097] Additionally, the outermost discarded segment data 222c is displayed as a shaded area on the scroll bar 210.

[0098] In this embodiment, the sample inspection data 229 provided for sample inspection is also subdivided into self-testing and quality assurance (QA) testing, and is displayed on the roll bar 210.

[0099] exist Figure 3 The loading data (chart) 260 displayed at the lower end of the embodiment, parallel to the roll chart bar, shows a portion 261 with excessive loading and a portion (PET connection section) 262 without loaded electrode paste, which correspond to the markings on the roll chart bar 210 above the loading data (chart) 260.

[0100] As described above, the roll pattern 200 according to this embodiment can display quality-related or defect-related data in specific shapes, colors, etc., synchronously with the electrode path on the same roll pattern bar or the same screen, and simultaneously display the current state of the material input to the coating process, important data on the loading amount, and detailed data for each point. Accordingly, quality-related historical information in the electrode coating process can be easily viewed at a glance.

[0101] The following describes a method for generating roll patterns in an electrode coating process.

[0102] Figure 4 This is a flowchart illustrating a roll-up diagram of an electrode coating process according to an embodiment of the present invention, and Figure 5 This is a schematic diagram illustrating a system for generating an electrode coating process according to the present invention.

[0103] Examples of methods for generating roll patterns of electrode coating processes according to the present invention include: operations ( Figure 4 Operation (b), by inspecting the electrode coating process, obtaining at least one of the quality-related data and defect-related data of the electrode coating process, wherein the electrode coating process involves coating an electrode with electrode slurry moving between an uncoiler and a rewinder in a roll-to-roll state; operation ( Figure 4 Operation (c) transmits the acquired data, along with data regarding the location of the acquired data on the electrode, to the server; and operation ( Figure 4 Operation (d) wherein a data system interconnected with a server synchronously displays a roll pattern bar having a strip shape and visually displays at least one of quality-related data and defect-related data at a position on the roll pattern bar corresponding to data about the position in the electrode, the roll pattern bar simulating the electrode in a roll-to-roll state.

[0104] Prior to the electrode coating process, it is preferable to first perform an electrode roll information registration operation ( Figure 4 In operation (a), when the electrode roll is installed between the uncoiler and rewinder in a roll-to-roll configuration, the electrode roll information registration operation will input detailed data, including the batch number of the electrode roll, into the server. (See reference...) Figure 5When an electrode roll is introduced into the uncoiler 10 or installed between the uncoiler 10 and the rewinder 20, detailed data including the electrode roll batch number can be input into the server 300. This data can be manually entered by the operator, for example at the location where the uncoiler 10 is installed, or automatically entered into the server 300 by scanning an indicator such as a barcode or similar object mounted on the electrode roll, for verifying detailed data in the process of the electrode roll being automatically moved to the uncoiler 10 by a robot or similar device. When information about the electrode roll is registered in the server 300, detailed data about the electrode (roll) (such as batch number, process, equipment, etc.) can be retrieved from the server and displayed on the screen along with the generated roll pattern bar. Moreover, the specifications of the length and width of the electrode roll can be obtained from the detailed data of the electrode roll. Accordingly, when the roll pattern bar is generated by a data processing system such as a manufacturing execution system (MES) or similar, the shape and size of the roll pattern bar can be determined in proportion to the length and width of the electrode. In other words, the roll pattern strips can be displayed according to the conversion ratio stored in the MES or similar, with a shape and size suitable for the length and width of the electrode roll. A data processing system is a system (including hardware or software) that performs input, processing, output, communication, etc., to perform a series of manipulations on data. An example of such a data processing system can be an MES as described above.

[0105] Meanwhile, in order to generate the roll pattern of the present invention, it is necessary to obtain quality-related or defect-related data of the electrode coating process and data about the location of the data in the electrode.

[0106] Quality-related or defect-related data can be obtained by examining electrode 1, which moves during the electrode coating process. For example... Figure 5 As shown, when electrode 1 moves between unwinder 10 and rewinder 20, one or both sides of electrode 1 are coated by electrode slurry coating machine 40 and insulating material coating machine 50.

[0107] If foreign objects or defects are present in electrode 1 before coating, the corresponding portion can be cut off and discarded into defect removal port 30, and the electrode can be directly connected to another electrode or connected using coupling members such as PET or the like. The electrode can also be connected even if a defect occurs on the electrode or if it breaks off due to excessive tension after coating. Furthermore, the outermost portion corresponding to the start and end points of the electrode may have uneven mass and is therefore cut off and discarded. Such electrode connection or discard sections can be measured automatically or manually. For example, when an operator connects a disconnected section, the location of that section can be directly input to a server or data processing system, or it can be input to an additional input device (not shown) that can communicate with server 300 and the like and is installed in the electrode coating line. Alternatively, the operator can directly attach an indicator label to the disconnected or connected section on the electrode.

[0108] After coating, electrode 1 is inspected using a predetermined measuring instrument 60 installed in the electrode coating process line. For example, measuring instruments such as an electrode slurry loading measuring instrument 61, a dimension and width measuring instrument 62, and a visual inspection device 63 can be installed on the production line. The electrode slurry loading measuring instrument 61 can employ a non-contact thickness measuring sensor, such as an ultrasonic sensor, displacement sensor, laser sensor, or confocal thickness sensor. Since the thickness of the electrode foil is known, the slurry loading can be measured by analyzing the wavelength of the reflected light emitted from, for example, the confocal thickness sensor and calculating the distance (thickness) between the sensor and the electrode.

[0109] The dimension and width measuring instrument 62 can be a type of vision measuring instrument used to measure the electrode width, the width of the coated portion, and the width of the uncoated portion by imaging or scanning the appearance of the electrode being coated. When the widths of the coated and uncoated portions are obtained, it can be determined whether there is a mismatch between the coated and uncoated portions, such as in… Figure 2 As shown in the lower left corner.

[0110] The visual inspection device 63 can obtain information such as the appearance of the electrodes by imaging their appearance. Figure 2 The appearance image shown in the lower right corner. From this, data can be obtained regarding appearance defects such as pinholes, lines, and dent shapes, as well as data regarding the appearance or defects of the insulation. The appearance inspection device 63 may include sensors, such as a color sensor, for determining the color of the electrode. The color sensor can detect portions whose color differs from the electrode, such as PET coupling components.

[0111] The measuring instruments described above are exemplary and for illustrative purposes. The measuring instruments are not limited to any type, as long as they can obtain quality-related or defect-related data regarding the electrode coating process.

[0112] Meanwhile, when conditions such as loading amount and similar coating conditions are adjusted, the electrode is coated at the front end of the electrode using an electrode slurry coater or the like, with electrode coating beginning at said front end. In this section, the loading amount can be varied. Accordingly, data regarding such condition adjustment sections can be acquired by measuring instrument 60, and this data can be displayed on the roll chart.

[0113] When quality-related or defect-related data are acquired by various measuring instruments or operators as described above, the data is transmitted to server 300. (Refer to...) Figure 6 Various measuring instruments 60 (such as electrode slurry loading measuring instrument 61, dimension and width measuring instrument 62, appearance inspection device 63, etc.) are connected to the server 300, so data on coating conditions and similar information related to the coating process can be stored in the server 300. Furthermore, data acquired by the various measuring instruments 60 can be stored in the server 300. In addition, data manually entered by the operator via an additional input device (not shown) can be stored in the server 300.

[0114] To display quality-related or defect-related data on a roll chart bar, it is necessary to specify data about the location of the data acquisition point on the electrode. In other words, assuming the roll chart bar is a coordinate system with two axes in the longitudinal and width directions, to input (display) specific data (related to defect quality) at a specific location (coordinate) in the coordinate system, it is necessary to obtain the electrode position data as the basis for the extraction location (coordinate).

[0115] As one implementation, position data based on the longitudinal direction of the electrodes can be detected by an encoder installed in the uncoiler 10 or rewinder 20. For example... Figure 5As shown, encoders 11 and 21 are mounted on the uncoiler 10 or rewinder 20. For ease of illustration, encoders 11 and 21 are shown as being mounted externally to the uncoiler 10 or rewinder 20, but the encoders can be embedded within the uncoiler 10 or the like. Typically, encoders 11 and 21 can be mounted in the motor drive unit that drives the uncoiler 10 or rewinder 20, and the electrode movement distance can be detected based on the motor speed. Accordingly, the movement distance can be detected by encoders 11 and 21 as the electrode moves between the uncoiler 10 and the rewinder 20. For example, when electrode 1 breaks, the broken electrode is removed at the defect removal port 30, and the operator inputs the connection section to the server via an input device. The encoder 11 of the uncoiler detects the break position of the electrode (longitudinal distance), and data regarding the position of the electrode connection section (distance data between the start and end points of the cut) can also be input together. In other cases, when the electrode is disconnected after coating and thus connected to a coupling member such as PET or the like, the electrode can be moved and placed under the visual inspection device 63, which can then identify the coupling member. In this case, when the encoder 21 of the rewinder 20 is allowed to interconnect with the visual inspection device 63 or to perform data communication with the visual inspection device 63 via wired or wireless means, the visual inspection device 63 can acquire data (longitudinal position data) about the coupling member segment detected by the encoder 21 of the rewinder 20. Accordingly, the visual inspection device 63 can also acquire data about the image of the coupling member acquired by the inspection device and the position data of the coupling member segment. Figure 5 As shown, the encoder 21 of the rewinder 20 is connected to the electrode slurry loading measuring instrument 61 and the dimension and width measuring instrument 62, in addition to the appearance inspection device 63. Therefore, it can acquire longitudinal position data of electrodes with measured loading and longitudinal position data of electrodes with measured dimensions or width, along with loading and dimension / width information. The encoder 11 of the uncoiler 10 can also be connected to various measuring instruments 60 as needed.

[0116] Simultaneously, positional data based on the electrode width direction can be detected using a measuring instrument 60 that checks the electrode coating process. Figure 5The measuring instruments 60 shown, such as load thickness measuring instruments or the like, can be mounted as multiple measuring instruments in the width direction of the electrode, or mounted as movable in the width direction of the electrode. Accordingly, the measuring instruments 60 can acquire quality-related or defect-related data (e.g., load data or appearance defect data) from each point in the width direction of the electrode at predetermined intervals. Moreover, data regarding the lateral position of the acquired data can be acquired by the measuring instruments 60. Each measuring instrument 60 is connected to the encoder 11 of the uncoiler 10 or the encoder 21 of the rewinder 20 for data communication, thus enabling the acquisition of all quality-related or defect-related data and data regarding the longitudinal and lateral positions of the acquired data within the electrode. Such data is transmitted to and stored in a server 300 connected to the measuring instruments (see [link to documentation]). Figure 5 ).

[0117] like Figure 5 As shown, data stored in server 300 is transmitted to a data processing system such as MES 400. MES 400 refers to software, or a data processing system including such software, that performs production management based on factory data in the manufacturing field to reduce costs, control quality, and achieve low-cost, high-efficiency production. Figure 5 In the illustrated embodiment, database 410 is installed in MES 400. However, database 410 may be provided separately from MES 400. Database 410 stores various data related to product production in the factory. Regarding the roll pattern generation of the present invention, database 410 includes quality-related data in the electrode coating process. Quality-related data may be, for example, standard information regarding the normal or optimized range of loading amount or the like, information regarding the allowable range of size or width of appearance defects, and mismatch tolerance range, etc. The quality management unit or central processing unit 420 installed in MES 400 can compare data received from server 300 with the quality data stored in database 410. The quality data of loading amount or the width of coated and uncoated portions are compared with measurement data obtained from measuring instruments to determine whether the loading amount is normal, insufficient, or excessive, or whether the loading amount is within the mismatch tolerance range. Alternatively, the comparison can be used to determine whether the size or width of appearance defects is within the allowable range and make similar judgments. In other words, the quality management unit or central processing unit 420 of the MES 400 can compare the data acquired by measuring instruments and the like with the quality data in the database 410 to determine whether the acquired data deviates from normal quality data. When the acquired data deviates from normal quality data, a portion of the roll bar corresponding to the acquired data can be marked, for example, by marking it with a different color or shape to visually distinguish it from other portions, as will be described below.

[0118] Meanwhile, the following data is visualized and displayed as a roll chart by the data visualization device 430 installed in the MES 400: quality-related or defect-related data and electrode location data received from the server 300 or data that is compared with quality data in the database to determine good or defective data.

[0119] Figure 6 This is a schematic diagram of a data visualization device 430 for generating roll patterns of electrode coating processes according to the present invention.

[0120] As shown in the figure, the data visualization device 430 includes an acquired data input unit 431, a roll chart bar coordinate determination unit 432, and an image generation unit 433.

[0121] First, the data input unit 431 receives data from the server, the quality management unit, or the central processing unit 420.

[0122] The roll chart bar coordinate determination unit 432 can define the visualization area in which the roll chart will be formed, and define the pixel coordinate values ​​of each data element of the acquired source data within the visualization area. When data regarding the specifications of the electrode roll (such as batch number, length, width, etc.) is input to the server 300 and MES 400 via electrode roll information registration, the roll chart bar coordinate determination unit 432 can calculate and determine the visualization area of ​​the roll chart bar from the data regarding the electrode size, based on a certain conversion ratio. In other cases, the visualization area of ​​the roll chart bar can be calculated and determined from the aforementioned data regarding the longitudinal and lateral positions within the electrode, based on a certain conversion ratio.

[0123] The roll bar coordinate determination unit 432 can map the acquired quality-related or defect-related data to the (lateral and longitudinal) position data of the electrode, and allocate the mapped data to the visualization area (roll bar) according to the pixel coordinates.

[0124] Image generation unit 433 can represent each pair of pixel coordinates mapped data elements assigned to the visualization area as at least one legend. Legends are various shapes displayed in the visualization area, such as circles, quadrilaterals, triangles, etc., or shapes or similar objects that are given color. Accordingly, various quality-related or defect-related data are visually displayed in the visualization area (referred to as a roll bar) at the pixel coordinates (coordinates on the roll bar) corresponding to each position data of the actual electrode, with the form, shape, and color specified for each data point and implemented on the roll bar by image generation unit 433, enabling the generation of the roll bar of the present invention.

[0125] Furthermore, quality-related or defect-related data, as well as data regarding the location of the acquired data, are stored in server 300. Accordingly, central processing unit 420 and data visualization device 430 can be configured to load data corresponding to specific ranges of the roll chart bar onto the same screen as roll chart bar 110, such as... Figure 2 As shown in the diagram. As described above, roll mapping can be performed for each channel of the electrode, the top and bottom surfaces of the electrode, or both sides of the electrode. In other cases, as described above, data on the current state of the material input to the electrode coating process can be received from, for example, a server 300 connected to the electrode slurry coating machine 40 and the insulating material coating machine 50, and this data can be compared with the roll mapping data. Figure 1 Alternatively, the load data, which is important data, can be extracted separately and displayed in parallel with the volume chart.

[0126] The size of the visualization area can be set, or the image can be generated by detecting the coordinates of the visualization area, through various existing user interfaces or various programs or processing tools related to data allocation, processing, analysis, and visualization. Accordingly, the above-described method for generating roll plots is merely an example, and the present invention is not limited to the embodiments described above.

[0127] Figure 5 The above-described system 1000 for generating roll patterns according to the present invention is shown. As shown, the system 1000 for generating roll patterns of an electrode coating process according to the present invention includes: a measuring instrument 60, which acquires at least one of quality-related data and defect-related data of the electrode coating process by inspecting the electrode coating process, and transmits the acquired data together with data regarding the location of the acquired data in the electrode to a server; a server 300, which stores the data received from the measuring instrument; a machine element control system (MES) 400, which generates roll patterns that, together with the server 300, synchronously displays roll pattern strips of a strip shape with respect to the movement of the electrode between the uncoiler 10 and the rewinder 20, and the roll pattern visually displays at least one of the quality-related data and defect-related data at predetermined positions on the roll pattern corresponding to the data regarding the position in the electrode, based on the quality-related or defect-related data received from the server 300 and the data regarding the location of the acquired data in the electrode, the roll pattern strips simulating the electrode in a roll-to-roll state; and a display unit 500, which is connected to the MES 400 and displays the roll pattern on a screen. The MES 400 includes a database 410, a quality management unit (central processing unit) 420, and a data visualization device 430. The database 410 stores quality data of the electrode coating process. The quality management unit 420 compares the acquired data with the quality data and makes decisions based on the acquired data. The data visualization device 430 visually displays roll chart bars and representation portions based on the acquired data. The representation portions visually display the data on the roll chart bars.

[0128] As described above, using the roll pattern according to the present invention, quality-related or defect-related data of the electrode coating process can be easily and visually identified at a glance. Because of the use of roll patterns, as long as the batch number or specification information of the battery or electrode is known, even when the electrode is used for assembly or in subsequent processes to manufacture a battery, the cause of post-assembly failures or defects can be easily identified from the roll pattern data of the corresponding electrode. Therefore, inter-process quality relationship analysis can be performed with high accuracy.

[0129] The present invention has been described in detail with reference to the accompanying drawings and embodiments. However, the configurations illustrated in the drawings or the embodiments described in this specification are merely embodiments of the present invention and do not represent the full technical spirit of the present invention. Therefore, it should be understood that various equivalents and modifications that can replace the embodiments may exist at the time of filing this application.

[0130] (Marker explanation)

[0131] 1: Electrode

[0132] 10: Uncoiling machine

[0133] 20: Rewinder

[0134] 30: Defect Removal Port

[0135] 40: Electrode slurry coating machine

[0136] 50: Insulation material coating machine

[0137] 60: Measuring instruments (measuring devices)

[0138] 61: Electrode slurry loading measurement instrument

[0139] 62: Dimension and Width Measuring Instruments

[0140] 63: Visual inspection device

[0141] 100: Roll Image

[0142] 110: Roll Image Strip

[0143] 120: Quality-related or defect-related data

[0144] 121: Loading volume data

[0145] 122: Disconnect segment data

[0146] 123: Appearance Defect Data

[0147] 124: Insulation Appearance Data

[0148] 125: Dimensions / Width Data

[0149] 126: Mismatched data

[0150] 127: Insulation Defect Data

[0151] 128: Other Defect Data

[0152] 129: Sample Inspection Data

[0153] 130: Detailed Data

[0154] 140: Electrode size

[0155] 150: Details

[0156] 160: Appearance Information

[0157] 200: Roll Image

[0158] 210: Roll Image Strip

[0159] 220: Quality-related or defect-related data

[0160] 221: Loading volume data

[0161] 222a: Data on the broken section of polyethylene terephthalate

[0162] 222b: Inter-electrode connection data

[0163] 222c: Outermost discarded segment data

[0164] 223: Appearance Defect Data

[0165] 225: Dimensions / Width Data

[0166] 226: Mismatched Data

[0167] 227: Data on external insulation defects

[0168] 228a: Defect Display (Automatic) Data

[0169] 228b: Defect Display (Manual) Data

[0170] 229: Sample Inspection Data

[0171] 230: Detailed Data

[0172] 240: Electrode size

[0173] 250: Current coating material input status

[0174] 260: Load Capacity Data (Chart)

[0175] 300: Server

[0176] 400: Manufacturing Execution System

[0177] 410: Database

[0178] 420: Quality Management Unit (Central Processing Unit)

[0179] 430: Data Visualization Device

[0180] 431: Data input unit

[0181] 432: Unit for determining the coordinates of roll plots

[0182] 433: Image Generation Unit

[0183] 500: Display Unit

Claims

1. A roll pattern for an electrode coating process, the roll pattern comprising: A scroll bar, which is displayed on the screen in the form of a bar via analog electrodes; as well as The display portion is configured to visually display data related to the electrode slurry loading on the electrode, the data being shown on the display portion along the longitudinal direction of the scroll bar.

2. The roll drawing according to claim 1, wherein, The display portion is configured to visually show at least one of the acquired quality-related and defect-related data, in addition to the electrode slurry loading-related data, and the acquired data is shown on the display portion at a certain position on the roll strip corresponding to the position in the electrode where the data was measured.

3. The roll drawing according to claim 1, wherein, The longitudinal dimensions of the electrodes are displayed at intervals along the longitudinal direction of the scroll strip.

4. The roll drawing according to claim 1, wherein, The electrode slurry loading data includes data indicating at least one of normal loading, insufficient loading, and excessive loading within a specific range of the roll strip.

5. The roll drawing according to claim 2, wherein, The acquired data is selected from the group consisting of the following items: 1) Data regarding at least one of the electrode dimensions and width; 2) Data regarding the mismatch between the coated electrode portion and the uncoated electrode portion; 3) Electrode appearance defect data; 4) Data regarding the location of disconnected sections of the electrodes or the connections between electrodes; 5) Data regarding the location of the sample testing unit; 6) Data regarding the location of the electrode discard section; 7) Data regarding insulation quality or defects in the insulation material coating process performed after electrode paste coating; and 8) Other defect data.

6. The roll drawing according to claim 2, wherein, The scroll bar is configured such that when a specific range of the scroll bar is specified and clicked on the screen, at least one of the acquired data and the electrode slurry loading-related data in the range corresponding to the specific range on the electrode is visually displayed on the screen separately from the scroll bar.

7. The roll drawing according to claim 1, wherein, The electrode is a double-sided electrode, and a roll pattern of the top and bottom surfaces of the double-sided electrode is displayed on the same screen.

8. The roll drawing according to claim 1, wherein, At least one of the following is visually displayed on the screen parallel to the longitudinal direction of the roll drawing: input status data of the electrode foil, electrode paste, and insulating material input to the electrode coating process; and electrode paste loading data input to the electrode coating process.

9. A roll pattern of an electrode, the roll pattern comprising: A scroll bar, comprising portions corresponding to coated portions of the electrode and portions corresponding to uncoated portions of the electrode, wherein the scroll bar is displayed on a screen in the form of a bar, simulating the electrode; and The display portion is configured to visually display at least one of the acquired quality-related and defect-related data, with the acquired data shown on the display portion at a certain position on the roll strip corresponding to the position in the electrode where the data was measured.

10. The roll drawing according to claim 9, wherein, The indicated portion is shown on the portion of the roll strip that corresponds to the coating portion of the electrode.

11. The roll drawing according to claim 9, wherein, The longitudinal dimensions of the electrodes are displayed at intervals along the longitudinal direction of the scroll strip.

12. The roll drawing according to claim 9, wherein, Detailed data is displayed along with the roll chart bar, including the batch number of the electrodes installed between the uncoiler and rewinder in roll-to-roll configuration.

13. The roll drawing according to claim 9, wherein, The acquired data is measured by a predetermined measuring instrument or by an operator, and then displayed.

14. The roll drawing according to claim 9, wherein, The acquired data is selected from the group consisting of the following items: 1) Data regarding electrode dimensions; 2) Data regarding the mismatch between the coated and uncoated electrode portions; 3) Electrode slurry loading data; 4) Electrode appearance defect data; 5) Data regarding the location of disconnected sections of the electrodes or the connections between electrodes; 6) Data regarding the location of the sample testing unit; 7) Data regarding the location of the electrode discard section; 8) Data regarding insulation quality or defects in the insulation coating process performed after electrode paste coating; and 9) Other defect data.

15. The roll drawing according to claim 9, wherein, The scroll bar is configured such that when a specific range of the scroll bar is specified and clicked on the screen, the acquired data in the range corresponding to that specific range on the electrode is visually displayed on the screen separately from the scroll bar.

16. The roll drawing according to claim 14, wherein, The roll-up bar is configured such that when electrode appearance defect data on the roll-up bar is clicked, an appearance image of the electrode captured by the appearance inspection device is visually displayed on the screen separately from the roll-up bar.

17. The roll drawing according to claim 16, wherein, When the appearance image is displayed, detailed information is displayed along with the appearance image, including the location coordinates of the appearance defects captured by the appearance inspection device.

18. The roll drawing according to claim 9, wherein, The roll pattern is displayed on the screen for each channel on which the electrode is located, with the electrode paste applied to the electrode.

19. The roll drawing according to claim 9, wherein, The electrode is a double-sided electrode, and a roll pattern of the top and bottom surfaces of the double-sided electrode is displayed on the same screen.

20. The roll drawing according to claim 9, wherein, Parallel to the longitudinal direction of the roll plot, at least one of the following is displayed: input status data of the electrode foil, electrode paste, and insulating material input to the electrode coating process; and electrode paste loading data input to the electrode coating process.

21. A system for generating roll plots, the system comprising: A server, configured to store at least one of acquired quality-related and defect-related data, as well as location data of the electrode from which the data was acquired; as well as A data processing system configured to interconnect with the server to display rollup bars having a strip shape simulating an electrode and including portions corresponding to coated portions of the electrode and portions corresponding to uncoated portions of the electrode, wherein the data processing system generates a rollup based on the quality-related and defect-related data and the location data in the electrode from which the data was acquired, wherein the rollup displays the acquired data at a specific position on the rollup bar corresponding to the location data in the electrode.

22. The system of claim 21, further comprising: A measuring device configured to acquire at least one of quality-related data and defect-related data, and to send the acquired data, together with the location data of the electrode from which the data was acquired, to the server.

23. The system of claim 21, further comprising: A display unit, connected to the data processing system, is configured to display the rollout on a screen.

Images