Battery manufacturing system, battery manufacturing method, and method for tracking process events in battery manufacturing process

Abstract

According to an exemplary embodiment, a battery manufacturing system is provided, the system including a first server including a first coordinate association data set in which coordinate data indicating the position of each electrode moving in a plurality of steps is associated with inspection data and / or measurement data of each electrode acquired in the plurality of steps, and an identification data set including an electrode ID for distinguishing the electrodes; a memory for storing instructions; and a processor for executing the instructions to 1) associating an electrode ID selected from the identification data set with coordinate data in the first coordinate association data set corresponding to the electrode ID; 2) generating monitoring data for battery manufacturing based on the association data between the electrode ID and the coordinate data; and one or more processors configured to perform operations including:

Description

[Technical Field]

[0001] The present invention relates to a battery manufacturing system, a battery manufacturing method, and a method for tracking process events in a battery manufacturing process.

[0002] This application claims the benefit of priority based on Korean Patent Application No. 10-2023-0130493, filed on September 27, 2023, and all contents disclosed in the documents of said Korean patent application are incorporated herein by reference. [Background technology]

[0003] Batteries, especially secondary batteries, differ from primary batteries in that they can be charged and discharged multiple times. Batteries are widely used as energy sources for a variety of cordless devices, such as handsets, laptops, and cordless vacuum cleaners. In recent years, improvements in energy density and economies of scale have dramatically reduced the manufacturing cost per unit capacity of batteries, and as the driving range of battery electric vehicles (BEVs) has increased to the same level as fuel-powered vehicles, the primary use of batteries has shifted from mobile devices to mobility.

[0004] Battery cells are manufactured through an electrode process, an assembly process, and an activation process. The manufactured battery cells are then included in larger units, such as battery modules and battery packs, and used in electric vehicles. The electrode process is the most crucial process for determining the yield and performance of battery cells. The electrode process can include a coating process, a roll press process, and a slitting process. In the coating process, active materials and insulating materials can be applied to the surface of a current collector. In the roll press process, the electrode can be pressed by a pressure roll. The roll press process can determine the density, performance, and surface quality of the electrode. In the slitting process, the electrode can be cut into multiple electrodes according to the design of the battery cell. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Korean Patent Publication No. 10-2023-0025288 Summary of the Invention [Problem to be solved by the invention]

[0006] The problem to be solved by the technical idea of ​​the present invention is to provide a battery manufacturing system capable of searching historical data of battery manufacturing, a battery manufacturing method, and a method for tracking process events in the battery manufacturing process. [Means for solving the problem]

[0007] According to an exemplary embodiment of the present invention to solve the above-mentioned problems, a battery manufacturing system is provided, which includes a first server including a first coordinate association dataset in which coordinate data indicating a position of each electrode moving through a plurality of steps and inspection data and / or measurement data of each electrode acquired through the plurality of steps are associated, and an identification dataset including an electrode identifier (ID) for distinguishing the electrodes, a memory for storing instructions, and one or more processors configured to execute the instructions to perform operations including:

[0008] 1) associating an electrode ID selected from the identification data set with coordinate data in the first coordinate association data set corresponding to the electrode ID; 2) generating monitoring data for battery manufacturing based on the association data between the electrode ID and the coordinate data;

[0009] The first coordinate-related data set includes electrode lot data representing electrode materials; Processing data from inspection and / or metrology data; and It may include at least one of original inspection data and / or measurement data.

[0010] The first server may further include a second coordinate association data set in which processed coordinate data obtained by processing the coordinate data of each process so that it corresponds to the position of the same actual electrode is associated with the inspection data and / or measurement data of each of the processes.

[0011] The coordinate data can be processed into the processed coordinate data by at least one of the following corrections:

[0012] 1) When the above coordinate data is inverted due to the inversion of the positions of the electrode start and end parts between processes, correction is performed to make the inverted coordinate data consistent between processes. 2) Correction to match the inverted coordinate data between processes when the corresponding surface of the electrode is inverted between processes depending on the electrode winding direction and electrode unwinding direction, resulting in the inversion of the coordinate data between processes. 3) When the above coordinate data fluctuates between processes due to electrode loss occurring during and / or between processes, correction is performed to make the fluctuating coordinate data consistent between processes.

[0013] The operations may further include associating the machining coordinate data with an electrode ID selected from the identification data set.

[0014] The monitoring data generation step includes: The method may further include a step of generating inter-process monitoring data by comparing the machining coordinate data of each process related to the electrode ID and the inspection data and / or measurement data of each process related to the electrode ID and machining coordinate data between multiple processes.

[0015] The identification data set may further comprise at least one of the following data:

[0016] 1) First electrode ID related data including coordinate values ​​of the electrode corresponding to the electrode ID in a process to which the electrode ID is assigned among a plurality of processes. 2) Second electrode ID related data including at least one of coordinate values ​​of the electrode corresponding to the electrode ID in a step of coupling the electrode with another electrode among the plurality of steps, and coordinate values ​​of another electrode coupled to the electrode and corresponding to the electrode ID. 3) Pitch data indicating the length of the electrode and / or the length of other electrodes coupled to the electrode

[0017] The operation may further include a step of associating the machining coordinate data of each process with the coordinate values ​​included in the first electrode ID related data and / or the second electrode ID related data via the electrode ID.

[0018] The first server may further include at least one of the following datasets:

[0019] 1) Equipment data sets acquired from each of a plurality of process equipment for electrode manufacturing 2) Quality dataset related to the quality of the electrodes from the above inspection data and / or measurement data

[0020] Each data set included in the first server may further include time series data indicating the time at which the data included in each data set was acquired, and the data included in each data set may be associated with the corresponding time series data.

[0021] The operations further include associating equipment data and / or quality data with the coordinate data and / or processing coordinate data associated with the electrode ID; In the monitoring data generating step, the monitoring data can be generated based on association data between the electrode ID, the coordinate data and / or the processing coordinate data, and the equipment data and / or the quality data.

[0022] The system may further include a second server that generates and uploads the first coordinate association data set and / or the second coordinate association data set to the first server.

[0023] the system further includes a third server that generates a first-first coordinate association data set that associates processed data of the inspection data and / or measurement data or a portion of the processed data with the coordinate data, and transmits the first-first coordinate association data set to the second server; The second server can integrate the first-1 coordinate related data set into the first coordinate related data set.

[0024] The system may further include a fourth server that generates and uploads the identification data set to the first server.

[0025] The first coordinate related data set and / or the second coordinate related data set may be or include a roll map data set that represents properties of a real electrode material based on the coordinate data or the machining coordinate data.

[0026] According to an exemplary embodiment of the present invention, there is provided a method for manufacturing a battery, the method comprising the steps of: acquiring a first coordinate association data set in which coordinate data indicating the position of each electrode moving in a plurality of steps is associated with inspection data and / or measurement data of the electrode acquired in each of the plurality of steps; acquiring a second coordinate association data set in which machining coordinate data obtained by processing the coordinate data of each process so that the data corresponds to the position of the same actual electrode and the inspection data and / or measurement data of each of the processes are associated with each other; obtaining an identification data set including electrode IDs for distinguishing the electrodes; associating an electrode ID selected from the identification data set with machining coordinate data in the second coordinate association data set corresponding to the electrode ID; and generating monitoring data for battery manufacturing based on association data between the electrode ID and the processing coordinate data.

[0027] In the monitoring data generation step, The electrode ID and the machining coordinate data of each process related thereto, Inspection data and / or measurement data of each process related to the electrode ID and the machining coordinate data, The method may further include the step of generating inter-process monitoring data by comparing between a plurality of processes.

[0028] The identification data set further comprises at least one of the following data: The method may further include a step of associating the machining coordinate data of each process with coordinate values ​​included in the following first electrode ID related data and / or second electrode ID related data via the electrode ID.

[0029] 1) First electrode ID related data including coordinate values ​​of the electrode corresponding to the electrode ID in a process to which an electrode ID is assigned among a plurality of processes. 2) Second electrode ID related data including at least one of coordinate values ​​of the electrode corresponding to the electrode ID in a step of coupling the electrode with another electrode among the plurality of steps, and coordinate values ​​of another electrode coupled to the electrode and corresponding to the electrode ID.

[0030] The method may further include a step of additionally associating at least one of equipment data acquired by each of a plurality of process equipments and / or at least one of quality data relating to the quality of the electrode among the inspection data and / or measurement data with the machining coordinate data or the machining coordinate data related to the electrode ID.

[0031] In another aspect of the present invention, there is provided a method for tracking battery process events, the method comprising the steps of: inputting a battery product ID associated with an electrode ID or information about the battery product ID as a search parameter; receiving battery manufacturing process monitoring data associated with the electrode ID generated based on the search parameters.

[0032] The monitoring data may include information about the electrode associated with the electrode ID at at least one step of a plurality of steps for producing the electrode.

[0033] The information about the electrodes includes coordinate data related to the electrode ID, and the coordinate data may indicate the positions of the electrode sheet or electrodes that move in the plurality of steps.

[0034] The information related to the battery product ID may include identification information of the place or object where the battery product is installed.

[0035] In one embodiment, the method may further include displaying the received monitoring data.

[0036] The battery product ID may be at least one of a battery pack ID, a battery module ID, and a battery cell ID.

[0037] The coordinate data may be processed coordinate data obtained by processing the coordinate data for each process so that the coordinate data corresponds to the position of the same actual electrode.

[0038] The information about the electrode may include the electrode ID and / or process event data associated with the coordinate data.

[0039] The process event data may include at least one of inspection data and / or measurement data for each electrode, time series data indicating the time when each data was acquired, and equipment data acquired at each process equipment for electrode manufacturing.

[0040] The above monitoring data is Inter-process monitoring data comparing electrode machining coordinate data in one process with electrode machining coordinate data in another process, and / or The inter-process monitoring data may include a comparison between first process event data relating to machining coordinate data of an electrode in one process and second process event data relating to machining coordinate data of an electrode in another process.

[0041] The monitoring data may further include battery semi-finished product ID information associated with the battery product ID and / or the electrode ID. [Effects of the Invention]

[0042] According to exemplary embodiments of the present invention, it is possible to improve traceability between a roll map generated in an electrode manufacturing process and a semi-finished product such as a mono-cell or bi-cell. In addition, it is possible to improve traceability between a semi-finished product assembly process and subsequent processes after the assembly process. This improves the reliability of battery manufacturing.

[0043] The effects that can be obtained from the exemplary embodiments of the present disclosure are not limited to the effects mentioned above, and other effects not mentioned can be clearly derived and understood from the following description by a person having ordinary skill in the art to which the exemplary embodiments of the present disclosure belong. In other words, unintended effects accompanying the implementation of the exemplary embodiments of the present disclosure can also be derived from the exemplary embodiments of the present disclosure by a person having ordinary skill in the art. [Brief explanation of the drawings]

[0044] [Figure 1] 1 illustrates a battery manufacturing system according to an exemplary embodiment. [Figure 2] 1 illustrates a battery manufacturing system according to an exemplary embodiment. [Figure 3] 1 is a diagram for explaining the operation of a processor and a memory included in a battery manufacturing system. [Figure 4] 1 illustrates a coating apparatus according to an exemplary embodiment. [Figure 5] 1 illustrates a roll pressing apparatus according to an exemplary embodiment. [Figure 6] 1 illustrates a notching device according to an exemplary embodiment. [Figure 7] 1 illustrates a lamination apparatus according to an exemplary embodiment. [Figure 8] 1 illustrates a lamination apparatus according to an exemplary embodiment. [Figure 9] 1 is a diagram illustrating offset distances for inspection and / or measuring instruments. [Figure 10] 10 is a diagram showing correction of coordinate data accompanying inversion of an electrode start portion and an electrode end portion. [Figure 11] 1 is a diagram showing that the surface and the beginning and end of the electrode are reversed depending on the electrode winding direction and unwinding direction. [Figure 12] 10 is a diagram showing how coordinate data is processed to generate processed coordinate data. [Figure 13] 10 is a diagram showing how coordinate data is processed to generate processed coordinate data. [Figure 14] 10 is a diagram showing an example in which time-series data is associated with electrode IDs and coordinate data. [Figure 15] 1 illustrates monitoring data generated by a battery manufacturing system according to an exemplary embodiment. [Figure 16] 10 illustrates another example of monitoring data generated by a battery manufacturing system according to an exemplary embodiment. [Figure 17] 1 is a flowchart illustrating a method for manufacturing a battery according to an exemplary embodiment. [Figure 18] 1 illustrates a battery manufacturing system according to an exemplary embodiment. [Figure 19] FIG. 10 is a schematic diagram illustrating an example of process event data related to an electrode ID and / or a battery product ID. [Figure 20] 1 is a flowchart illustrating a method for tracking process events in a battery manufacturing process according to an exemplary embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0045] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Before that, it should be noted that the terms and words used in the specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings, but should be interpreted as meanings and concepts that are consistent with the technical idea of ​​the present invention, based on the principle that the inventor can appropriately define the concept of the term to best describe his / her own invention.

[0046] Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent the entire technical idea of ​​the present invention, and there may be various equivalents and modifications that can replace them at the time of this application.

[0047] Furthermore, in the description of the present invention, if it is determined that a specific description of related publicly known configurations or functions may obscure the gist of the present invention, the detailed description will be omitted.

[0048] The embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art, and therefore the shapes and sizes of components in the drawings may be exaggerated, omitted, or shown schematically for clearer explanation. Therefore, the sizes and proportions of each component do not completely reflect the actual sizes and proportions.

[0049] 1 and 2 illustrate a battery manufacturing system according to an exemplary embodiment.

[0050] FIG. 3 is a diagram for explaining the operation of the processor and memory included in the battery manufacturing system.

[0051] Referring to FIG. 1, the battery manufacturing system 10 may include a coating device 100, a roll pressing device 200, a slitting device 300, a notching device 400, a lamination device 500, a subsequent process device 600, an EIF 1100, first to fourth servers 1210, 1220, 1230, 1240, and a display device 1300.

[0052] The battery manufacturing system 10 can be configured to manufacture battery cells (eg, pouch-type battery cells, prismatic battery cells, or cylindrical battery cells) by performing a series of roll-to-roll processes.

[0053] The coating, roll pressing, and slitting processes are electrode manufacturing processes in which electrodes are applied to electrode sheets and then pressed. The notching process processes the electrode sheets to form electrode tabs, and the lamination process stacks electrodes with electrode tabs to manufacture unit cells such as mono-cells and bi-cells. The notching and lamination processes are included in the assembly process (see the dotted box in Figure 1).

[0054] The unit cells are stacked again to form an electrode assembly of a stack cell or a folding cell. The electrode assembly is then housed in a cell housing and filled with electrolyte to form a semi-finished battery cell. The semi-finished battery cell is then given predetermined electrical characteristics through an activation process or the like to become a finished battery cell. The completed battery cells can be bundled together to form a battery module or a battery pack. Even after the lamination process, various subsequent processes, such as a stacking process, folding process, housing insertion process, electrolyte filling process, activation process, modularization process, and packing process, must be performed to obtain a finished product such as a battery cell, battery module, or battery pack.

[0055] An electrode sheet unwound from an electrode roll fed into a coating apparatus (coating process) can be processed by any one of the die coater of the coating apparatus 100, the pressure roll of the roll pressing apparatus 200, and the slitting knife of the slitting apparatus 300, and the processed electrode sheet can be wound onto an electrode roll. Thus, the process using the coating apparatus 100, the roll pressing apparatus 200, and the slitting apparatus 300 to produce an electrode can be referred to as a roll-to-roll process. An electrode roll fed into the notching apparatus 400 is notched to form electrode tabs at predetermined intervals, and an electrode ID, which is an identification mark, can be attached before being wound onto an electrode roll. Therefore, the process using the notching apparatus 400 can also be referred to as a roll-to-roll process. The lamination apparatus 500 can laminate, for example, a negative electrode sheet unwound from a negative electrode roll, a positive electrode sheet unwound from a positive electrode roll, and a separator membrane sheet unwound from a separator membrane roll. Thus, the process using the lamination apparatus 500 can also be referred to as a roll-to-roll process.

[0056] The coating apparatus 100 can perform a coating process on the electrode sheet. The coating process is a process of coating an electrode slurry on the electrode sheet. The electrode slurry can include an active material, a conductive material, a binder, and a solvent. The electrode slurry can be prepared by dissolving the active material, the conductive material, the binder, etc. in a solvent.

[0057] The roll pressing device 200 may perform a pressing process on the electrode sheet. In the roll pressing process, the electrode sheet coated with the electrode slurry may be passed between pressure rolls. The roll pressing process may flatten the surface of the electrode sheet and increase the bonding strength between the active material of the electrode sheet and the current collector.

[0058] The slitting device 300 can perform a slitting process on the electrode sheet, which can separate the electrode sheet into a plurality of electrode sheets through the slitting process.

[0059] The notching device 400 forms tabs in the electrode sheet and, if necessary, can form V-shaped grooves for cutting the electrode sheet. In the notching process, a negative electrode tab TN and a positive electrode tab TP can be formed.

[0060] In the notching process, the negative electrode tabs TN are provided with electrode IDs EID. The electrode IDs EID can be formed by methods such as laser printing and ink printing. This allows each of the negative electrode tabs TN to include the electrode IDs EID. Unlike the negative electrode tabs TN, the positive electrode tabs TP do not need to include the electrode IDs EID to prevent defects.

[0061] However, the present invention is not limited to this, and when an appropriate safety device such as a fume collector is installed, an electrode ID EID can also be given to the positive electrode tab TP.

[0062] The electrode ID EID may include a symbol indicating the order of the electrode tabs TN. The electrode ID EID symbol may include, but is not limited to, Arabic numerals. The electrode ID EID symbol may include any characters that can provide information about the order of the electrode tabs TN. The electrode ID may also be a barcode or a QR code (registered trademark).

[0063] The lamination process is a process that follows the notching process. Therefore, the positive electrode roll and negative electrode roll completed in the notching process are loaded onto the unwinder of the lamination device 500. At this time, electrode IDs EID can be provided on the electrode tabs through ID marking in the notching process. In the embodiment of the present specification, electrode IDs EID are provided on the negative electrode tabs in the notching process. The positive electrode sheet is notched in the notching process, so that it has positive electrode tabs but no electrode IDs. Conversely, electrode IDs may be provided on the positive electrode tabs and negative electrode tabs in the notching process.

[0064] In the lamination process, the positive electrode sheet and the negative electrode sheet are cut into positive and negative electrodes, and the positive and negative electrodes are laminated with a separator interposed therebetween. In this case, the electrodes cut in the lamination process can be called electrodes in the narrow sense.

[0065] However, the electrodes produced in the lamination process also originate from the electrode sheets moved in the preceding processes of coating, roll pressing, slitting, and notching. The electrodes in the lamination process also have electrode IDs (EID) assigned in the notching process. The actual electrodes (positive and negative electrodes) produced in the lamination process have coordinate values ​​corresponding to the electrode IDs, and these coordinate values ​​correspond to the coordinate values ​​of the electrode sheets in the notching process corresponding to the positions of the same actual electrodes. Furthermore, the coordinate values ​​in the lamination process corresponding to the above-mentioned actual electrodes correspond to the coordinate values ​​corresponding to the positions of the same actual electrodes in the coating, roll pressing, and slitting processes, which are electrode production processes. In this sense, although the electrode sheets are not cut into actual electrodes in the pre-lamination process, the electrode sheets moved in the pre-lamination process are referred to as electrodes in a broad sense because they have coordinate values ​​(coordinate data) corresponding to the actual electrodes.

[0066] The position of each electrode moving from the above-mentioned coating apparatus 100, roll pressing apparatus 200, slitting apparatus 300, and notching apparatus 400 is acquired as coordinate data CD. This coordinate data CD can be associated with the inspection data ID and / or measurement data MD of each electrode acquired in each apparatus (process). The coordinate-related inspection data CID and / or coordinate-related measurement data CMD are sent to the server for generation of monitoring data.

[0067] Although not shown, the lamination device 500 can also acquire coordinate data CD indicating the positions of the electrodes, and inspection data and / or coordinate data in the lamination process. Therefore, the coordinate-related inspection data CID and / or coordinate-related measurement data CMD in the lamination process can also be transmitted to the server for generating monitoring data.

[0068] The EIF 1100 may be a device for communication between a controller (e.g., a process PLC) of a manufacturing facility and a server. The controller 140 of the coating apparatus 100, the controller 240 of the roll pressing apparatus 200, the controller 340 of the slitting apparatus 300, and the controller 440 of the notching apparatus 400 can communicate with the server via the EIF 1100. Although not shown in FIG. 2, the controller 540 of the lamination apparatus 500 can also communicate with the server via the EIF 1100.

[0069] As a result, data on process events occurring in, for example, the negative electrode coating device 100, roll pressing device 200, slitting device 300, notching device 400, and lamination device 500 (e.g., inspection data / measurement data for each process, CID1 / CMD1, CID2 / CMD2, CID3 / CMD3, CID4 / CMD4) can be transmitted from the controllers 140, 240, 340, 440, 540 of each process to the servers 1230, 1220, 1210.

[0070] Similarly, data on process events occurring in the positive electrode coating device 100, roll pressing device 200, slitting device 300, notching device 400, and lamination device 500 (e.g., inspection data / measurement data for each process, CID'1 / CMD'1, CID'2 / CMD'2, CID'3 / CMD'3, CID'4 / CMD'4) can be transmitted from the controllers 140', 240', 340', 440', 540' of each process to the servers 1230, 1220, 1210.

[0071] In addition, data on process events generated from the controllers of various subsequent process devices 600, such as stacking processes, folding processes, housing insertion processes, liquid injection processes, activation processes, modularization processes, and packing processes, can also be transmitted to the servers 1230, 1220, and 1210.

[0072] Meanwhile, the first electrode ID related data EID D1 including the electrode ID EID obtained in the notching process and the coordinate values ​​of the electrode corresponding to the electrode ID can be transmitted to the first server 1210 via the fourth server 1240.

[0073] In addition, second electrode ID related data EID D2 including at least one of the coordinate values ​​of the electrode (e.g., coordinate values ​​of the negative electrode) corresponding to the electrode ID EID obtained in the lamination process and the coordinate values ​​of another electrode (e.g., coordinate values ​​of the positive electrode) coupled to the electrode and corresponding to the electrode ID can also be transmitted to the first server 1210 via the fourth server 1240. From the viewpoint of data processing, the fourth server 1240 can be a dedicated electrode ID management server.

[0074] The first server 1210 can generate monitoring data for battery manufacturing by associating the coordinate-related inspection data CID and / or coordinate-related measurement data CMD with the electrode ID EID corresponding to the coordinates. In this case, the first server 1210 can generate monitoring data by additionally matching coordinate values ​​included in the first electrode ID-related data EIDD1 and the second electrode ID-related data EIDD2 with the electrode ID and the coordinate-related inspection data CID and / or coordinate-related measurement data CMD.

[0075] 2 and 3, the battery manufacturing system 10 of the present invention will be more particularly described in accordance with an exemplary embodiment.

[0076] The battery manufacturing system 10 of the present invention according to an exemplary embodiment includes a first server 1210 including coordinate data CD indicating the position of each electrode moving in multiple steps, a first coordinate association data set (FCDS: 1221) to which inspection data ID and / or measurement data MD of each electrode acquired in multiple steps are associated, and an identification data set (IDS: 1213) including electrode ID EID for distinguishing the electrodes, a memory 1420 for storing instructions, and one or more processors 1410 configured to execute the instructions to perform operations including:

[0077] 1) A step of associating an electrode ID EID selected from the identification data set (IDS: 1213) with coordinate data CD of the first coordinate association data set (FCDS: 1221) corresponding to the electrode ID. 2) generating monitoring data for battery manufacturing based on the association data between the electrode ID EID and the coordinate data CD;

[0078] The battery manufacturing system 10 may further include a measuring instrument and / or an inspection instrument. The measuring instrument may be configured to measure the electrode sheet ES to collect measurement data of the electrode sheet ES. The measuring instrument may measure the electrode sheet ES using a scanning method. The measurement data may include a plurality of measurement values ​​expressed numerically. For example, the measurement data may include dimensional data of the electrode sheet ES, such as thickness and width; data on the amount of coating material loaded on the electrode sheet ES; dimensional data, such as the width of the insulating material provided on the coating material and the overlap width between the coating material and the insulating material; and data on mismatching between the coating lane on the upper surface of the electrode sheet ES and the coating lane on the lower surface of the electrode sheet ES. Here, the loading amount represents the amount of coating material loaded per unit area of ​​the electrode sheet ES, and may be the areal density of the coating material.

[0079] The measurement data is processed in a set manner to determine whether the measured portion of the electrode sheet ES is good or bad. If the measured amount of coating material on the electrode sheet ES (e.g., the loading amount on the electrode sheet ES or the thickness of the electrode sheet ES) is within a set range including an upper limit and a lower limit, the corresponding portion of the electrode sheet ES can be determined to be good. If the measured amount of coating material on the electrode sheet ES (e.g., the loading amount on the electrode sheet ES or the thickness of the electrode sheet ES) is less than the lower limit or greater than the upper limit, the corresponding portion of the electrode sheet ES can be determined to be bad.

[0080] The instruments may include, for example, time delay and integration (TDI) cameras, complementary metal oxide semiconductor (CMOS) image sensors, and time of flight (TOF) sensors. The instruments may also include emitters and receivers configured to perform measurements using non-destructive signals such as ultrasound, microwave, terahertz, and infrared. The instruments may also include analog and / or digital sensors such as biosensors, chemical sensors, composition sensors, current and / or power meters, air quality sensors, gas sensors, Hall effect sensors, brightness level sensors, and light sensors. The instruments may also include pressure sensors, temperature sensors, ultrasonic sensors, proximity sensors, door status sensors, motion tracking sensors, humidity sensors, visible and infrared sensors, and cameras.

[0081] The measuring instrument may be configured to generate coordinate-related measurement data CMD by relating the coordinate data CD to the measurement data MD.

[0082] The inspector may be configured to inspect the electrode sheet ES to collect inspection data of the electrode sheet ES, and may be configured to detect defects, such as surface defects, of the electrode sheet ES based on changes in color and reflectance on the surface of the electrode sheet ES.

[0083] The inspection data ID collected by the inspector may include judgments and process events related to the quality of portions of the electrode sheet ES. For example, the inspection data may include data on the appearance of the electrode sheet ES collected by an image-based inspection device such as a vision machine, data on breaks and seams in the electrode sheet ES, data on portions of the electrode sheet ES that have been sampled, data on portions of the electrode sheet ES scheduled for scrapping, data on scrapped portions of the electrode sheet ES, data on the quality of coating materials and insulating materials on the electrode sheet ES, data on reference points indicating the position of the electrode sheet ES, and defect data such as pinhole defects, crater defects, line defects, crack defects, side ring defects, island defects, fold defects, wrinkle defects, poke defects, and dent defects. The reference points may be formed at predetermined intervals on the electrode sheet ES, and the positions of other elements on the electrode sheet ES may be located based on the reference points. The inspector may be any one of a color sensor, a seam sensor, a reference point sensor, and a vision machine.

[0084] The inspector may be configured to generate coordinate-related inspection data CID by associating the coordinate data CD with inspection data ID.

[0085] The measurement data and test data described above may be time-series data. The measurement data and test data may be temporally ordered. Temporal ordering is a key characteristic of time-series data, which is arranging events in the order in which they occur and arrive for processing. That is, the measurement data and test data may be sorted based on the time at which the measurements and tests were performed, and the measurement data and test data may be associated with time. This allows each measurement value of the measurement data to be matched to a time, and each test value of the test data to be matched to a time.

[0086] As an example, the measurement quantity (e.g., the amount of loading on the electrode sheet ES or the thickness of the electrode sheet ES) data may include a series of measurement quantity (e.g., the amount of loading on the electrode sheet ES or the thickness of the electrode sheet ES) values ​​and time values ​​associated with the series of measurement quantity values. The measurement quantity values ​​and time values ​​may be matched one-to-one, but are not limited to this. As another example, the defect data may include a value indicating a defect and a time value associated with the value indicating a defect. Here, indicating a defect means including information regarding at least one of the presence or absence of a defect and the type of defect.

[0087] The battery manufacturing system 10 of the present invention includes a first server 1210 that includes a first coordinate related data set (FCDS: 1221) and an identification data set (IDS: 1213).

[0088] The first coordinate-related data set FCDS associates coordinate data CD indicating the position of each electrode moving in multiple processes with test data ID and / or measurement data MD of each electrode acquired in multiple processes. The test data ID can be acquired by an inspection device installed for the required inspection in each process. The inspection device can associate the test data with coordinate data indicating the position of the electrode where the test data is acquired. The measurement data MD can be acquired by a measuring device installed to obtain the required measurement values ​​in each process. The measuring device can associate the measurement data with coordinate data indicating the position of the electrode where the measurement data is acquired. The coordinate-related data CID / CMD acquired by the inspection device and / or measuring device can be transmitted to the server via the controller of each process and EIF 1100.

[0089] The battery manufacturing system 10 of this embodiment may include a second server 1220 that generates a first coordinate related data set (FCDS: 1221). The second server 1220 can collect coordinate data CD received from each process controller and inspection data and / or measurement data CID / CMD associated with the coordinate data, and generate the first coordinate related data set (FCDS: 1221) for each process. The second server 1220 can upload the generated first coordinate related data set (FCDS: 1221) to the first server 1210 at predetermined intervals.

[0090] The first coordinate related data set (FCDS:1221) may be a roll map data set that represents properties of the real electrode material based on coordinate data.

[0091] The second server 1220 may be configured to generate or store a roll map including process event data. The roll map data may include values ​​representing process events and coordinate values ​​matching the values. The coordinate values ​​may indicate positions on the electrodes. This allows the roll map to enable feedback, feedforward, and tracking of the battery manufacturing process, as described below.

[0092] The roll map can be generated on a lot-by-lot basis. A lot is a production unit of a roll-to-roll process, and an example of a lot is an electrode roll (or electrode assembly roll) separated after achieving the target winding length for each process. Similarly, an example of a lot is an electrode roll loaded onto an unwinder for each process. The server 1220 can generate or store a roll map for each process (e.g., a coating process, a roll pressing process, a slitting process, or a notching process).

[0093] The time series data generated in the roll map according to the flow of time (i.e., according to the progress of the process) can be associated with coordinate data collected based on the amount of movement of the electrode sheet (i.e., either the amount consumed or the amount input).

[0094] Battery manufacturing involves a series of different processes, and leading processes affect subsequent processes. However, if the time series data of the leading process cannot be directly matched with the real-world workpieces, intermediate products, and finished products, it is difficult to reflect the time series data of the leading process in the subsequent process. Hereinafter, the correction of the subsequent process based on the data generated according to the results of the leading process is called feedforward.

[0095] Here, the term "work product" refers to an article provided as a result of each process, such as an electrode sheet, that has undergone a coating process, a roll pressing process, a slitting process, and a notching process. The term "intermediate product" refers to one of a separator, an electrode, and an assembly thereof cut by a lamination process. The intermediate product may be a structure including a housing and an electrode assembly housed in the housing (in some cases, the structure may further include an electrolyte). The term "product" refers to an article that has been processed to be operable as a battery through an activation process. The above definitions of work product, intermediate product, and product relate to one aspect of the term and do not exclude the usual definitions thereof.

[0096] Process events generally occur as the process progresses, and are therefore time-series data. Therefore, process event data may include a value representing the event and a time value that is matched to the event. Thus, process event data may be time-series data.

[0097] For feedforward, time-series data must be associated with the positions of images of workpieces, parts, semi-finished products, and finished products in the real world. Here, feedforward can include controlling processing of the electrode sheet based on a roll map generated in a previous process. The roll map can associate the time-series data with coordinate data including coordinate values ​​indicating the positions of images of workpieces, parts, semi-finished products, and finished products in the real world. The roll map can provide matching between the time-series data and the workpieces, parts, semi-finished products, and finished products in the real world based on the coordinate data. Thus, generating a roll map and feedforward based on the roll map can increase productivity and quality by quantifying and objectifying aspects of the process that previously depended on the discretion of the worker.

[0098] The roll map of a previous lot can also be used to improve the process for subsequent lots, and such action can be called process feedback. Process feedback using a roll map can include identifying process conditions and process parameters that lead to problems and defects based on the data contained in the roll map.

[0099] Furthermore, as will be described later, roll maps are cumulatively generated for workpieces, parts, semi-finished products, and finished products of a unit process, thereby enabling tracking of the process history of shipped products (e.g., battery cells, battery modules, or battery packs). As an example, a battery cell may include an electrode ID of an electrode included in an electrode assembly and a host ID formed on the electrode assembly or housing. The ID may include lot numbers and coordinate information of the electrodes and separator included in the battery cell. In other words, the ID may be associated with a roll map of the electrodes and separator included in the battery cell. As a result, if an event such as a quality problem occurs in a battery cell that has already been shipped, historical data on the manufacture of the battery cell can be retrieved based on the ID.

[0100] The first coordinate related data set (FCDS:1221) may include at least one of electrode lot data (ELD:1231) representing the electrode material, processed data of the inspection data and / or measurement data, and original data of the inspection data and / or measurement data.

[0101] The electrode lot data (ELD:1231) may include data regarding lot, i.e., electrode material specifications, such as the lot number, the length of the wound sheet material SM, the width of the sheet material SM, and the materials and compositions used in processing the sheet material SM.

[0102] The first coordinate-related data set (FCDS:1221) may include processed data of the inspection data and / or measurement data. The amount of inspection data and / or measurement data received by the controller of each process equipment accumulates rapidly over time. Therefore, it is not possible for a process controller to continuously store such a large amount of data to proceed with the process. Therefore, the inspection data and / or measurement data must be processed to reduce the amount of data. For example, a processing unit of the inspection and / or measurement instrument may compress the inspection data or measurement data to generate compressed data. The compressed inspection data and / or measurement data may include a representative value of the inspection data and / or measurement data for each of the multiple sections of the electrode sheet ES. Furthermore, the representative value of the inspection data and / or measurement data may be associated with a representative value of the coordinate data CD for each of the multiple sections. The representative value of the inspection data and / or measurement data for each of the multiple sections of the electrode sheet ES may include at least one of the mean, standard deviation, median, maximum value, and minimum value of the inspection data and / or measurement data for each of the multiple sections. The representative values ​​of the coordinate data for each of the plurality of sections of the electrode sheet ES can include the start coordinate and the end coordinate for each of the plurality of sections.

[0103] The processing unit may be configured to generate evaluation data including a determination value for each of a plurality of sections of the electrode sheet ES based on any one of the coordinate-related inspection data CID and / or the measurement data CMD and the compressed inspection data and / or the measurement data. The determination value for each of the plurality of sections may be determined based on a comparison between a set range and the inspection value and / or the measurement value (or a representative value).

[0104] In one embodiment, the battery manufacturing system 10 may further include a third server 1230 that generates a first-first coordinate related dataset (FCDS-1:1232) that associates processed data of the inspection data and / or measurement data or a portion of the processed data with the coordinate data and transmits the generated dataset to the second server 1220. In this embodiment, for efficiency of data processing and transmission, not all inspection data or measurement data acquired by an inspection or measurement device is transmitted to the second server 1220 via the controllers of each process and the EIF 1100. Instead, only processed data of the inspection and / or measurement data, which has a small data volume, or only a portion of the processed data is associated with the coordinate data, and the associated data is transmitted to the third server 1230. The third server 1230 may generate a first-first coordinate related dataset (FCDS-1) with a small data volume based on the associated data. The first-first coordinate related dataset (FCDS-1) may include the electrode lot data (ELD:1231) described above.

[0105] The first-first coordinate related data set (FCDS-1:1232) sent from the third server 1230 can be integrated into the first coordinate related data set (FCDS:1221) in the second server.

[0106] Meanwhile, original data of the inspection data ID and / or measurement data MD, which have a large data volume, may be stored in a separate server (e.g., eIoT 1150). The original data acquired by the inspection or measurement instrument may be transmitted to a separate server, and then transmitted from the separate server to the second server 1220. The second server 1220 may combine the original data with a first-1 coordinate related data set (FCDS-1:1232) transmitted from the third server 1230 to generate a first coordinate related data set (FCDS).

[0107] The original data can be associated with time-series data at the time the data was acquired and / or coordinate data at the location where the data was acquired. In the second server 1220, for example, the original data can be mapped (integrated) with the coordinate data of the 1-1 coordinate data set (FCDS-1), the inspection data, and / or the processed data of the measurement data, using the time-series data as an intermediary.

[0108] The first server 1210 includes an identification data set (IDS:1213) including electrode IDs EID for distinguishing the electrodes.

[0109] As described above, the electrode ID EID is provided by a notching process that forms a tab on the electrode, and an electrode (e.g., a negative electrode) with the electrode ID EID can be bonded to another electrode (e.g., a positive electrode) by a lamination process.

[0110] The identification data set (IDS:1213) may further include at least one of the following data:

[0111] 1) First electrode ID related data EIDD1 including coordinate values ​​of the electrode corresponding to the electrode ID in a process to which the electrode ID EID is assigned among a plurality of processes. 2) Second electrode ID related data EID D2 including at least one of coordinate values ​​of the electrode corresponding to the electrode ID EID in a step of coupling the electrode with another electrode among the plurality of steps, and coordinate values ​​of another electrode coupled to the electrode and corresponding to the electrode ID. 3) Pitch data PD indicating the length of the electrode and / or the length of other electrodes connected to the electrode

[0112] As described above, the process in which the electrode ID EID is assigned may be, for example, a notching process. In the notching process, the electrode ID may be assigned to an electrode tab formed by notching using an ID marking machine. Each electrode ID EID may correspond to coordinate values ​​that are the position of the corresponding electrode in the notching process. The notching controller 440 of the notching apparatus 400 may collect the electrode ID EID using, for example, an electrode ID reader. It may also collect first electrode ID-related data EIDD1 including coordinate values ​​of the electrode corresponding to the electrode ID. The first electrode ID-related data EIDD1 may include inspection data and / or measurement data in the notching process that correspond to the electrode ID and coordinate values.

[0113] The notching controller 440 can also store pitch data PD indicating the length of the notched electrode.

[0114] The notching controller 440 transmits the pitch data PD, the electrode ID EID, and the first electrode ID related data EID D1 to the fourth server 1240, which is a dedicated electrode ID management server.

[0115] Among the multiple processes, in the process of bonding the electrode with another electrode (lamination process), an electrode (e.g., a negative electrode) having an electrode ID and another electrode (e.g., a positive electrode) are cut by a cutter and then bonded via a separator. At this time, the electrode ID is collected by an electrode ID reader and transmitted to the lamination controller 540. The lamination controller 540 can also collect coordinate values ​​of the electrode corresponding to the electrode ID in the lamination process and coordinate values ​​of other electrodes bonded to the electrode and corresponding to the electrode ID. Therefore, the lamination controller 540 can collect second electrode ID-related data EIDD2 including the coordinate values ​​of the electrode corresponding to the electrode ID EID in the lamination process and the coordinate values ​​of other electrodes bonded to the electrode and corresponding to the electrode ID. The second electrode ID-related data EIDD2 can include inspection data and / or measurement data in the lamination process corresponding to the electrode ID and coordinate values.

[0116] The lamination controller 540 stores the length of an electrode with an electrode ID and pitch data PD relating to the length of other electrodes that are combined with the electrode.

[0117] The lamination controller 540 transmits the pitch data PD, the electrode ID EID, and the second electrode ID related data EIDD2 to the fourth server 1240, which is a dedicated electrode ID management server.

[0118] The fourth server 1240 can generate an identification data set (IDS:1241) including the pitch data PD, the electrode ID EID, the first electrode ID-related data EIDD1, and the second electrode ID-related data EIDD2. The fourth server 1240 can upload the generated identification data set (IDS:1241) to the first server 1210 at predetermined intervals.

[0119] According to an exemplary embodiment, the third server 1230 may be a data processing system that supports various activities required to manage battery manufacturing, such as work schedule management, work instructions, quality control, and work performance aggregation. As such a data processing system, the third server 1230 may include, for example, a manufacturing execution system (MES). The MES may be configured to perform input, processing, output, and communication of data required for electrode manufacturing, such as a coating process, a pressing process, and a manufacturing process.

[0120] The second server 1220 may be configured to store and process raw inspection data and / or measurement data. The second server 1220 may manage the quality of electrode sheet processing by continuously monitoring the electrode sheet processing based on the inspection data and / or measurement data. To this end, the second server 1220 may be or include a statistical process controller (SPC), which is a higher-level data processing system. The SPC may collect and analyze manufacturing data in near real time to identify problem conditions in a timely manner and provide an alarm to workers before potential problems occur.

[0121] According to another exemplary embodiment, the first server 1210 may be or may include, for example, a data warehouse, which is a higher-level data processing system. The data warehouse may store the role map for a long period of time based on, for example, a product warranty period.

[0122] The first server 1210 can generate a visualization command for visualizing the role map. The first server 1210 can transmit the visualization command to the display device 1300, which can then visualize the role map and display the visualized role map. However, the second server 1220 and the third server 1230 can also generate a visualization command for the display device 1300 to visualize the role map generated in the step corresponding to each server.

[0123] The battery manufacturing system 10 of the present invention may include a memory 1420 for storing instructions and one or more processors 1410 configured to execute the instructions to perform operations including:

[0124] 1) A step of associating an electrode ID EID selected from the identification data set (IDS: 1213) with coordinate data CD of the first coordinate association data set (FCDS: 1211) corresponding to the electrode ID. 2) generating monitoring data for battery manufacturing based on the association data between the electrode ID EID and the coordinate data CD;

[0125] 3, the battery manufacturing system 10 of the present invention may include a processor(s) 1410 (e.g., a CPU, GPU, or other processing device) for communicating with other devices, a memory 1420. The system 10 may also include a communication interface(s) 1440 (e.g., a network interface).

[0126] Instructions executable by one or more processors 1410 may be stored on a non-transitory computer-readable medium. Examples of non-transitory computer-readable media include RAM, ROM, solid-state storage media, optical storage media, and magnetic storage media. The non-transitory computer-readable medium may be part of the memory of a computing device or may reside separately from the computing device.

[0127] The memory 1420 may include volatile memory such as RAM and / or ROM and non-volatile memory such as a storage medium. Examples of storage media include solid-state storage media (e.g., solid-state drives and / or removable flash memory), optical storage media (e.g., optical disks), and magnetic storage media (e.g., hard disk drives). The instructions (e.g., software or computer-readable code) described above may be stored in any volatile and / or non-volatile components of the memory 1420. The system 10 may further include an input device(s) 1450 and an output device(s) 1460. For example, a keyboard, a mouse, a joystick, or a touchscreen may be used as an input device. For example, a display, a head-up display, an AR display, a VR display, or a printer may be used as an output device. The above-mentioned components of the system may be coupled to each other via one or more buses 1430. In some embodiments, the processor 1410 may include both a CPU and a GPU.

[0128] Any process disclosed herein may be embodied by one or more processors 1410 in a computing system, as shown in FIG. 3 . The processes performed by the processors may also be referred to as operations. One or more processors may be configured to perform such processes by accessing instructions that cause the processors to perform the processes. The instructions may be stored in the memory 1420. When one or more processors 1410 are embodied as multiple processors, the multiple processors may be included in a single computing device or distributed across multiple computing devices. Furthermore, the computing device including the processor 1410 and memory 142 may be physically coupled within the first server 1210 or may be physically separate from the first server 1210 and included in a separate device.

[0129] The first server 1210 stores the first coordinate related data set (FCDS: 1211) transmitted from the second server 1220 and the identification data set (IDS: 1213) transmitted from the fourth server 1240. The processor 1410 executes instructions to perform the following operations.

[0130] 1) A step of associating an electrode ID EID selected from the identification data set (IDS: 1213) with coordinate data CD of the first coordinate association data set (FCDS: 1211) corresponding to the electrode ID. 2) generating monitoring data for battery manufacturing based on the association data between the electrode ID EID and the coordinate data CD;

[0131] As described above, the first coordinate-related data set (FCDS:1221) includes coordinate data CD indicating the position of the electrode in each of multiple processes, and inspection data and / or measurement data (CID / CMD) related to the coordinate data. The electrode ID is associated with corresponding coordinate values ​​in the notching process and lamination process. Therefore, by associating the coordinate values ​​and electrode ID in the notching and lamination processes with the coordinate data CD in the first coordinate-related data set, the position of the electrode to be tracked across multiple processes can be identified. That is, by mapping the electrode ID EID of the same actual electrode with the corresponding coordinate data CD in each of multiple processes, the position of the electrode where a quality problem has occurred can be identified. This makes it possible to determine the position of the electrode in question, for example, in the coating process, roll pressing process, slitting process, notching process, and lamination process. In addition, the first coordinate-related data set (FCDS:1221) contains the inspection data and / or measurement data CID / CMD of each electrode related to the above coordinate data, so that the inspection characteristics and / or measurement characteristics of each electrode corresponding to the coordinate data of each process can be grasped.

[0132] For example, by associating the electrode ID of a negative electrode with the corresponding coordinate data CD of each process, the position of the negative electrode in the coating process, roll pressing process, slitting process, notching process, and lamination process can be determined.

[0133] Furthermore, based on the association data between such electrode ID EID and the coordinate data CD, monitoring data for battery manufacturing can be generated.

[0134] For example, in the lamination process, the coordinate data of the positive electrode coupled to the negative electrode can be determined. When constructing the first coordinate-related data set for the positive electrode, the position of the positive electrode in the coating process, roll pressing process, slitting process, notching process, and lamination process can also be determined. Figure 2 shows that coordinate-related inspection data CID'1, CID'2, CID'3, and CID'4 and measurement data CMD'1, CMD'2, CMD'3, and CMD'4 are transmitted from the coating process controller 140', roll pressing process controller 240', slitting process controller 340', and notching process controller 440' of another electrode (e.g., the positive electrode) to the third server 1230 and the second server 1220 via the EIF 110, and a first coordinate-related data set (FCDS:1221) for the positive electrode is constructed.

[0135] The first server 1210 can grasp the inspection characteristics and / or measurement characteristics of each electrode corresponding to the coordinate data of each process of the negative and positive electrodes related to the coordinate data through the first coordinate-related dataset (FCDS:1211) for the positive and negative electrodes. Accordingly, the first server 1210 can identify the positions (coordinate data) of the positive and negative electrodes corresponding to the electrode IDs, the inspection data and / or measurement data, and the time points at which the data was acquired (time-series data) and generate various monitoring data required for manufacturing a battery at each process or between multiple processes. For example, the first server 1210 can visualize and display a roll map (roll map dataset) representing the characteristics of the actual electrode material on a graphical user interface based on the coordinate data. For example, the first server 1210 can display a roll map of the coating process, a roll map of the roll pressing process, a roll map of the slitting process, a roll map of the notching process, and a roll map of the lamination process in association with the positions corresponding to the electrode IDs of each electrode. Furthermore, the roll maps of the negative and positive electrodes having coordinate values ​​corresponding to the electrode IDs can be implemented on a graphical interface for monitoring. The monitoring data is not limited to the generation of roll map data. For example, data obtained by processing one of inspection data or measurement data closely related to quality into a graph, chart, or 3D remodeling based on the association data between the electrode ID and coordinate data can also be the monitoring data. The monitoring data can include all data generated, processed, transformed, and utilized for battery manufacturing based on the data stored in the first coordinate association data set FCDS and the identification data set (IDS:1213).

[0136] According to an exemplary embodiment, the first server 1210 may further include at least one of the following data sets:

[0137] 1) Equipment dataset (EDS:1214) acquired from multiple process equipment for electrode manufacturing 2) Quality data set (QDS:1215) on electrode quality among test data and / or measurement data

[0138] As described above, each of the process equipment includes a process controller. The controller of each process can collect, for example, critical to quality parameter data (CTP (Critical to Parameter) data). CTP data refers to critical to quality parameter data among equipment data.

[0139] For example, in a coating process, the pressure, speed, and supply rate of a slurry pump can be CTP data. Since the slurry pump is controlled by a controller for the coating process, data related to the pressure, speed, and supply rate of the slurry pump is collected or stored in the controller for the coating process. Alternatively, the temperature and pressure in the coating process can also be CTP data. Since all of this data is acquired by each piece of process equipment (process controller), it is included in the equipment data ED. The equipment data ED can also include data related to the specifications of the equipment itself, such as the various machines and mechanisms that perform the process.

[0140] For example, in a roll pressing process, the roll pressing pressure (press oil pressure) can be CTP data. Also, in the process controllers of the slitting process, notching process, and lamination process, corresponding types of equipment data can be acquired.

[0141] In this way, the equipment data ED can be collected in various ways according to each process.

[0142] Equipment data ED, for example, CTP data, can be transmitted from each process equipment, for example, a process controller, to a server such as the eIoT 1150. The eIoT server 1150 can upload the equipment data ED to the first server 1210. As a result, the first server 1210 can additionally include an equipment data set (EDS: 1214).

[0143] As described above, the eIoT server 1150 serves to transmit the original data ID / MD of the coordinate-related inspection data and / or measurement data CID / CMD acquired in each process to the second server 1220. In addition, the eIoT server 1150 can transmit the equipment data ED to the first server 1210.

[0144] The processor 1410 is configured to execute instructions to associate electrode IDs with coordinate data based on data extracted from the first coordinate association dataset (FCDS: 1211) and the identification dataset (IDS: 1213) of the first server 1210, and generate monitoring data based thereon. In this case, an operation can be performed to associate equipment data ED associated with the electrode IDs and / or coordinate data with the monitoring data, or to include equipment data in the monitoring data. For example, the equipment data can be associated with coordinate data acquired at a time corresponding to the time at which the equipment data was acquired based on time-series data. In this case, inspection data and / or measurement data associated with the coordinate data can also be associated with the equipment data. This allows the first server 1210 to generate more comprehensive monitoring data including the equipment data.

[0145] Alternatively, the equipment data may include data related to coordinate data. The coordinate-related equipment data may be associated with the electrode ID and / or the test data and / or measurement data related to the coordinate data based on the coordinates (data).

[0146] On the other hand, among the above-mentioned inspection data and / or measurement data, there may be quality data QD related to the quality of the electrode. For example, CTQ (Critical To Quality) data, which is important data related to quality, may be collected as the quality data.

[0147] The processed data or original data of the inspection data and / or measurement data may be included in a first coordinate-related dataset (FCDS:1221) generated by the second server 1220. The second server 1220 may also have a dataset of inspection data and / or measurement data separate from the first coordinate-related dataset (FCDS:1221), such as a roll map dataset. Such inspection data and / or measurement data may be uploaded to the first server 1210 as included in the first coordinate-related dataset (FCDS:1221) or as a separate dataset. The processor 1410 may be configured to execute instructions to perform an operation of extracting a quality dataset (QDS:1215) related to quality from the inspection data and / or measurement data uploaded to the first server 1210. This may allow, for example, a CTQ dataset to be extracted. For example, the coating thickness and coating width in a coating process may be CTQ data in the coating process. In a roll pressing process, the rolling thickness may be CTQ data. Corresponding quality data, such as CTQ data, can also be collected during the slitting, notching, and lamination processes.

[0148] The processor 1410 is configured to execute instructions to associate electrode IDs with coordinate data based on data extracted from the first coordinate association dataset (FCDS: 1211) and the identification dataset (IDS: 1213) of the first server 1210, and generate monitoring data based thereon. In this case, the processor 1410 can execute an operation to extract quality data related to the electrode IDs and / or coordinate data from the quality dataset (QDS: 1215) and associate it with the monitoring data, or to include the quality data in the monitoring data. For example, the quality data can be associated with coordinate data acquired at a time corresponding to the time at which the quality data was acquired based on time-series data. In this case, other test data and / or measurement data related to the coordinate data can also be associated with the quality data. This allows the first server 1210 to generate more comprehensive monitoring data including the quality data.

[0149] Quality data is typically also associated with coordinate data. Thus, coordinate-related equipment data can be associated based on the coordinates to the electrode ID and / or various inspection and / or measurement data related to the coordinate data.

[0150] As an exemplary embodiment, the first server 1210 may further include a second coordinate related data set (SCDS: 1212) in which machining coordinate data obtained by machining the coordinate data CD of each process so as to correspond to the position of the same actual electrode and the inspection data and / or measurement data of each process are associated with each other. The second coordinate related data set (SCDS: 1212) may be generated by the second server 1220, similar to the first coordinate related data set (FCDS: 1221).

[0151] The coordinate data CD of the first coordinate association data set (FCDS: 1211) can be associated with the electrode ID EID of the identification data set (IDS: 1213) as described above.

[0152] However, the coordinate data acquired in each process actually differs in specific coordinate values. For example, in a roll-to-roll process, an electrode roll wound in a previous process is unwound in a subsequent process, so the positions of the electrode start and end of the electrode roll in the previous process are reversed to the end and start, respectively, in the subsequent process. Furthermore, the top and bottom surfaces of the electrode may be reversed between the previous and subsequent processes depending on the electrode winding and unwinding directions. For example, in the case of a double-sided electrode in which an electrode active material is coated on both sides, the electrode surface may be reversed, such that the top electrode in the previous process becomes the bottom electrode in the subsequent process. Furthermore, electrode loss may occur, in which a portion of the electrode is removed during or between processes. Through a series of roll-to-roll processes, the electrode may be cut and reconnected several times in the longitudinal direction to remove defective or broken sections, resulting in changes in electrode length. These changes that occur during the multiple processes for electrode manufacturing make it difficult to quickly match coordinate data acquired in each process between processes.

[0153] Therefore, when associating the coordinate data of the first coordinate association data set (FCDS:1211) with the electrode ID, it is necessary to calculate the coordinate data of each process so that it corresponds to the position (coordinate value) of the electrode ID of the actual electrode, reflecting the change that occurs between processes. For this calculation, the battery manufacturing system 10 may be provided with a separate computing device.

[0154] The battery manufacturing system 10 of this embodiment is configured to upload a second coordinate related data set (SCDS: 1222), which is calculated in advance to reflect these changes, from the second server 1220 to the first server 1210 at predetermined intervals. That is, the first server 1210 is provided with a second coordinate related data set (FCDS) including processed coordinate data that is calculated (processed) in advance and corresponds to the coordinate data of each process, thereby eliminating the need for a separate computing device.

[0155] In addition, multiple inter-process monitoring data can be generated using second coordinate association data in which machining coordinate data in the second coordinate association data set (FCDS) is associated with inspection data and / or measurement data for each process. For example, machining coordinate data for each process associated with a specific electrode ID acquired from the identification data set can be acquired. The processor 1410 can execute instructions to perform operations including associating the machining coordinate data with an electrode ID selected from the identification data set.

[0156] In addition, in the monitoring data generating step, the inspection data and / or measurement data of each process related to the electrode ID and machining coordinate data can be compared between a plurality of processes to generate inter-process monitoring data.

[0157] At this time, equipment data (e.g., CTP data) and quality data (e.g., CTQ data) of the relevant process can be extracted from the equipment data set (EDS: 1214) and quality data set (QDS: 1215) stored in the first server 1210 and included in the inter-process monitoring data, thereby generating more comprehensive monitoring data between multiple processes.

[0158] To this end, the processor 1410 can execute instructions for performing operations further including associating the equipment data ED and / or quality data QD with coordinate data and / or machining coordinate data related to the electrode ID. Also, in the monitoring data generating step, monitoring data can be generated based on the association data of the electrode ID, coordinate data and / or machining coordinate data, and the equipment data and / or quality data.

[0159] Furthermore, the processing coordinate data for each process can be associated with the coordinate values ​​included in the first electrode ID-related data and / or the second electrode ID-related data via the electrode ID. For example, the processing coordinate data for the coating process, roll pressing process, and slitting process can be associated with the first electrode ID-related data EID D1 including the electrode ID EID of the notching process and the coordinate values ​​in the notching process corresponding to the electrode ID. This makes it possible to easily manage or track the quality of a specific electrode between the notching process and multiple previous processes based on a specific electrode ID.

[0160] Alternatively, the processing coordinate data of the coating process, roll pressing process, slitting process, and notching process may be associated with at least one of the electrode ID EID of the lamination process, the coordinate value of the electrode in the lamination process corresponding to the electrode ID, and the coordinate value of another electrode combined with the electrode and corresponding to the electrode ID. This makes it possible to easily manage or track the quality of a specific electrode between the lamination process and multiple previous processes based on a specific electrode ID.

[0161] Meanwhile, the second server 1220 can generate machining coordinate data for each process corresponding to the position of the same real electrode by, for example, processing the coordinate data CD of the first coordinate related data set (FCDS: 1221). To this end, a memory for storing instructions for performing the above-mentioned machining-related operations and one or more processors configured to execute the instructions can be provided within the second server 1220 or separately from the second server 1220.

[0162] The coordinate data can be processed into the processed coordinate data by at least one of the following corrections:

[0163] 1) When the above coordinate data is inverted due to the inversion of the positions of the electrode start and end parts between processes, correction is performed to make the inverted coordinate data consistent between processes. 2) Correction to match the inverted coordinate data between processes when the corresponding surface of the electrode is inverted between processes depending on the electrode winding direction and electrode unwinding direction, resulting in the inversion of the coordinate data between processes. 3) When the above coordinate data fluctuates between processes due to electrode loss occurring during and / or between processes, correction is performed to make the fluctuating coordinate data consistent between processes.

[0164] The specific process of processing coordinate data by reflecting the above-mentioned start / stop inversion, surface inversion, and electrode loss will be described later.

[0165] The second coordinate related data set (SCDS:1222), like the first coordinate related data set, can also be a roll map data set representing the properties of the actual electrode material based on coordinate data or machining coordinate data, or can include the roll map data set.

[0166] For example, if the first coordinate-related data set (FCDS: 1211) includes coordinate data for individual processes and a roll map for each process associated with the inspection data and / or measurement data for each process, the second coordinate-related data set (SCDS: 1222) can include machining coordinate data for each process corresponding to the same actual electrode position and a roll map for each process associated with the inspection data and / or measurement data for each process. The latter second coordinate-related data set (SCDS: 1222) allows intuitive locating a position in each process corresponding to the same actual electrode or the same electrode ID based on the machining coordinate data. This allows various data related to that position (e.g., inspection data, measurement data, equipment data, quality data, first electrode ID-related data, second electrode ID-related data) to be freely mapped. Therefore, by including the second coordinate-related data set (SCDS: 1212) in the first server 1210, electrode quality can be easily and quickly searched for based on the electrode ID in multiple processes (including the assembly process) for electrode manufacturing.

[0167] Meanwhile, each data set included in the first server 1210 may further include time series data indicating the time point at which the data included in each data set was acquired. Also, the data included in each data set may be associated with the corresponding time series data. As a result, the data included in each data set may be searched, associated, matched, mapped, combined, processed, and utilized based on the coordinate data, the time series data, or both.

[0168] FIG. 4 illustrates a coating apparatus according to an exemplary embodiment.

[0169] FIG. 5 illustrates a roll pressing apparatus according to an exemplary embodiment.

[0170] FIG. 6 illustrates a notching device according to an exemplary embodiment.

[0171] 7 and 8 show a lamination apparatus according to an exemplary embodiment.

[0172] The process of constructing a data set in each step will be described below with reference to the above-mentioned FIGS.

[0173] 4, the coating apparatus 100 may include an unwinder 111, a rewinder 113, a coater 115, a first rotary encoder 121, a second rotary encoder 123, an inspection and / or measuring instrument 131, a roll map programmable logic controller (PLC) 141, and a process PLC 143. The coating apparatus 100 may be connected to server systems, a third server 1230, a second server 1220, and a first server 1210, via an equipment interface (EIF) 1100, so as to be able to communicate data therewith. The coating apparatus 100 may also be connected to a separate server, eIoT 1150, so as to be able to communicate data therewith. The entire configuration including the coating apparatus 100 and the servers may also be referred to as a coating roll map generation system.

[0174] The first electrode roll ER1 may be loaded onto the unwinder 111. The unwinder 111 may be configured to unwind the first electrode sheet ES1 from the first electrode roll ER1. The rewinder 113 may be configured to wind the first electrode sheet ES1 onto the second electrode roll ER2. The first electrode sheet ES1 may be wound onto the second electrode roll ER2 and then cut and separated after reaching a predetermined winding length. This allows the first electrode sheet ES1 to move between the unwinder 111 and the rewinder 113.

[0175] The first rotary encoder 121 may be configured to sense the amount of the first electrode sheet ES1 unwound from the first electrode roll ER1 by the unwinder 111. Thus, the first rotary encoder 121 may be configured to generate an input amount signal UWAS1 indicating the length of the first electrode sheet ES1 unwound by the unwinder 111. The first rotary encoder 121 may be configured to transmit the input amount signal UWAS1 to the roll map PLC 141.

[0176] The second rotary encoder 123 may be configured to sense the amount of the first electrode sheet ES1 wound onto the second electrode roll ER2 by the rewinder 113. Thus, the second rotary encoder 123 may be configured to generate an exhaustion amount signal WAS1 indicating the length of the first electrode sheet ES1 wound by the rewinder 113. The second rotary encoder 123 may be configured to transmit the exhaustion amount signal WAS1 to the roll map PLC 141.

[0177] The die coater 115 may be configured to coat an electrode slurry containing an active material onto the first electrode sheet ES1. When the first electrode sheet ES1 is a positive electrode current collector, the electrode slurry containing a positive electrode active material may be provided on the first electrode sheet ES1, and when the first electrode sheet ES1 is a negative electrode current collector, the electrode slurry containing a negative electrode active material may be provided on the first electrode sheet ES1.

[0178] The roll map PLC 141 may be configured to collect coordinate data CD1 of the first electrode sheet ES1 based on the consumed amount signal WAS1 and / or the input amount signal UWAS1 of the first electrode sheet ES1. As an example, the roll map PLC 141 may determine the movement distance of the first electrode sheet ES1 based on the input amount signal UWAS1 of the first electrode sheet ES1. As a result, the roll map PLC 141 may be configured to determine the position within the first electrode sheet ES1 of the portion of the first electrode sheet ES1 that is unwound by the unwinder 111 at each time an event occurs on the first electrode sheet ES1.

[0179] As another example, the roll map PLC 141 can determine the distance traveled by the first electrode sheet ES1 based on the consumed amount signal WAS1 of the first electrode sheet ES1. As a result, the roll map PLC 141 can be configured to determine the position within the first electrode sheet ES1 of the portion of the first electrode sheet ES1 that is wound up by the rewinder 113 at each time an event occurs on the first electrode sheet ES1. As another example, the roll map PLC 141 can also determine the distance traveled by the first electrode sheet ES1 based on each of the consumed amount signal WAS1 and the input amount signal UWAS1.

[0180] Hereinafter, the technical idea of ​​the present invention will be described with reference to an embodiment in which the roll map PLC 141 collects coordinate data CD1 based on the consumption amount signal WAS1 of the first electrode sheet ES1 as a non-limiting example.

[0181] The coordinate data CD1 may include coordinate values ​​corresponding to each portion of the first electrode sheet ES1. That is, each arbitrary point on the first electrode sheet ES1 may be matched with a coordinate value. The coordinate values ​​may be one-dimensional quantities in the direction of movement of the first electrode sheet ES1, but are not limited thereto. The coordinate values ​​may also be two-dimensional quantities in the direction of movement and the Y direction, which is the lateral direction of the first electrode sheet ES1.

[0182] The inspection and / or measurement instrument 131 may be configured to inspect or measure the first electrode sheet ES1. The inspection and / or measurement instrument 131 may be an inspection instrument, a measurement instrument, or an inspection and measurement instrument. A plurality of inspection and / or measurement instruments 131 may be provided. For convenience of explanation, only one inspection and / or measurement instrument is shown in this specification, and it is assumed that one inspection and / or measurement instrument can acquire both inspection data and measurement data. However, it is also possible to acquire inspection data using an inspection instrument and measurement data using a measurement instrument.

[0183] According to an exemplary embodiment, the inspection and / or measurement device 131 may be a vision inspection device or a loading amount measurement device. The inspection and / or measurement device 131 may inspect and / or measure the first electrode sheet ES1 in a scanning manner. In some embodiments, the inspection and / or measurement device may move along the width direction of the first electrode sheet ES1. The inspection and / or measurement device 131 may include a sensing unit 131S and a processing unit 131P. The sensing unit 131S and the processing unit 131P may be connected to each other via a wire or wirelessly. The sensing unit 131S may be configured to sense a physical quantity of the first electrode sheet ES1 to generate the inspection and / or measurement signal IS1 / MS1.

[0184] For example, the sensing unit 131S may include an imaging device such as a time delay and integration (TDI) camera, a complementary metal oxide semiconductor (CMOS) image sensor, etc. The sensing unit 131S may be configured to transmit the inspection and / or measurement signals IS1 / MS1 to the processing unit 131P. The inspection and / or measurement signals IS1 / MS1 may include, for example, an image of the surface of the first electrode sheet ES1.

[0185] The processing unit 131P may be configured to collect the inspection and / or measurement signals IS1 / MS1 generated by the sensing unit 131S to generate inspection and / or measurement data. The processing unit 131P may be configured to collect coordinate-related inspection and / or measurement data CID1 / CMD1 based on the inspection and / or measurement signals IS1 / MS1 and the coordinate data CD1. The processing unit 131P may be configured to transmit the coordinate-related inspection and / or measurement data CID1 / CMD1 to the roll map PLC 141. According to an exemplary embodiment, the coordinate-related inspection and / or measurement data CID1 / CMD1 or the inspection and / or measurement data ID1 / MD1 related to the time series data may be transmitted from the processing unit 131P to the eIoT 1150. Also, the coordinate-related inspection and / or measurement data CID1 / CMD1 or the inspection and / or measurement data ID1 / MD1 related to the time series data may be transmitted from the eIoT 1150 to the second server 122. In terms of data volume and processing, the data transmitted from the processing unit 131P to the eIoT 1150 is original inspection data and / or measurement data or data with a large volume. Only processed inspection data and / or measurement data or part of the processed data can be transmitted from the processing unit 131P to the roll map PLC 141.

[0186] The roll map PLC 141 may be in operative communication with the first rotary encoder 121, the second rotary encoder 123, and the inspection and / or measuring instrument 131 via a wired or wireless data network. The data network may be unidirectional or bidirectional. The data network may be embodied by a public network and / or a specialized network using physical channels, Wi-Fi, Bluetooth, and / or other frequency bands. The first rotary encoder 121, the second rotary encoder 423, and the inspection and / or measuring instrument 131 may be configured to collect data or generate signals to collect data from equipment, workpieces, workpieces, and products within the coating apparatus.

[0187] The roll map PLC 141 can be configured to transmit the coordinate data CD1 to the processing unit 131P. The processing unit 131P can be configured to associate the inspection and / or metrology data with the coordinate data CD1 to generate coordinate-related inspection and / or metrology data CID1 / CMD1. Generally, the inspection and / or metrology data can be processed based on the trigger point. Examples of processing the inspection and / or metrology data can include storing, manipulating (e.g., generating coordinate-related inspection and / or metrology data), and transmitting the inspection and / or metrology data.

[0188] As a non-limiting example, the trigger point for processing the inspection and / or measurement data may be the completion of a scan. For example, the sensing unit 131S may scan the sheet material in the width direction of the first electrode sheet ES1, and the inspection and / or measurement data may be stored, processed, modulated, and transmitted for each scan. In other examples, the trigger point may be the completion of multiple scans or the completion of a portion of a scan.

[0189] The coordinate-related inspection and / or measurement data CID1 / CMD1 transmitted to the roll map PLC 141 can be transmitted to the server 1230 via the process PLC 143. Alternatively, the coordinate-related inspection and / or measurement data CID1 / CMD1 can be transmitted from the process PLC 143 to the third server 1230 via the EIF 1100 (see FIG. 4).

[0190] The process PLC 143 and the EIF 1100 can relay communication of data including inspection and / or measurement data between the third server 1230 and the roll map PLC 141. However, without being limited thereto, the roll map PLC 141 can also transmit the coordinate-related inspection and / or measurement data CID1 / CMD1 directly to the third server 1230.

[0191] Process PLC 143 can be configured to control the operation of unwinder 111, rewinder 113, and coater 115. Process PLC 143 can be configured to generate signals for operation and interruption of unwinder 111, rewinder 113, and coater 115. The signals can be generated based on a body containing product ID and manufacturing recipe details.

[0192] To control the process, a communication line can be installed between the process PLC 143 and the third server 1230 via the EIF 1100, connecting the process PLC 143 and the third server 1230. This allows data transmission via the process PLC 143 to save resources required for installing a communication line, and improves the efficiency of data processing and management, compared to when the first rotary encoder 121, the second rotary encoder 125, and the measuring instrument 131 directly transmit the unwinding amount signal UWAS1, the winding signal WAS1, and the inspection and / or measurement signals IS1 / MS1 to the third server 1230, and when the roll map PLC 141 directly transmits related data to the third server 1230.

[0193] The process PLC 143 can acquire or store equipment data ED related to the coating equipment. The process PCL 143 can transmit the equipment data ED to the eIoT 1150.

[0194] The roll map PLC 141 and process PLC 143 can constitute the coating controller 140 of the coating apparatus.

[0195] The third server 1230 can generate a first-to-first coordinate related dataset (FCDS-1:1232) based on the data (coordinate data CD1, coordinate-related inspection and / or measurement data CID1 / CMD1) transmitted from the process PLC 143. The first-to-first coordinate related dataset (FCDS-1:1232) can be, for example, a roll map or roll map dataset in a coating process. The third server 1230 transmits the first-to-first coordinate related dataset (FCDS-1:1232) to the second server 1220.

[0196] The second server 1220 can generate a first coordinate related dataset (FCDS:1221) by integrating the original data of the inspection data and / or measurement data ID1 / MD1 transmitted from the eIoT 1150 with the first-1 coordinate related dataset (FCDS-1:1232) transmitted from the third server 1230. The second server 1220 can also generate machining coordinate data by processing the coordinate data included in the first coordinate related dataset (FCDS:1221). The second server 1220 can also generate a second coordinate related dataset (SCDS:1222) by associating the machining coordinate data with inspection and / or measurement data of the coating process. The second server 1220 uploads the generated first coordinate related dataset (FCDS:1221) and second coordinate related dataset (SCDS:1222) to the first server 1210 at predetermined intervals.

[0197] The first server 1210 stores a first coordinate-related data set (FCDS: 1211) and a second coordinate-related data set (SCDS: 1212) uploaded at predetermined intervals for a long period of time. The first server 1210 can also receive equipment data of the coating device from the eIoT 1150 to generate an equipment data set (EDS: 1214). The first server 1210 can also generate a quality data set (QDS: 1215) from the first coordinate-related data set (FCDS: 1211) or from separate inspection and / or measurement data sets transmitted from the second server 1220. The fourth server 1240 can also receive coating data from the fourth server 1240. An identification data set (IDS:1241) including the electrode ID of the electrode produced from the electrode sheet can be transmitted. However, the generation of the identification data set for the electrode produced from the coating sheet is not performed immediately during the coating process. That is, the identification data is generated after the subsequent process performed after winding the electrode roll ER2 in the coating device is completed.

[0198] Once subsequent processes, such as the lamination process, are completed and the identification data set is uploaded to the first server 1210, the first server 1210 can extract data from the various data sets described above to generate monitoring data for battery manufacturing.

[0199] The first server 1210 can visualize and display such monitoring data on the display device 1300.

[0200] 5, the roll pressing apparatus 200 may include an unwinder 211, a rewinder 213, a splicing table 215, a scrap port 217, a pressure roll 219, a first rotary encoder 221, a second rotary encoder 223, an inspection and / or measuring instrument 231, a roll map PLC (Programmable Logic Controller) 241, and a process PLC 243. The roll pressing apparatus 200 may be connected to server systems, i.e., a third server 1230, a second server 1220, and a first server 1210, via an EIF 1100, so as to be able to communicate data therewith. The roll pressing apparatus 200 may also be connected to a separate server, eIoT 1150, so as to be able to communicate data therewith. The entire configuration including the roll pressing apparatus 200 and the servers may also be referred to as a roll pressing roll map generation system.

[0201] The second electrode roll ER2 may be loaded onto the unwinder 211. After being completed in the coating apparatus 100, the second electrode roll ER2 may be transferred to the roll pressing apparatus 200 by a transfer device. The unwinder 211 may be configured to unwind the second electrode sheet ES2 from the second electrode roll ER2. The rewinder 213 may be configured to wind the second electrode sheet ES2 around the third electrode roll ER3. The second electrode sheet ES2 may be wound around the third electrode roll ER3 and then cut and separated after reaching a predetermined winding length. Thus, the second electrode sheet ES2 may move between the unwinder 211 and the rewinder 213.

[0202] The first rotary encoder 221 may be configured to sense the amount of the second electrode sheet ES2 unwound from the second electrode roll ER2 by the unwinder 211. Thus, the first rotary encoder 221 may be configured to generate an input amount signal UWAS2 indicating the length of the second electrode sheet ES2 unwound by the unwinder 211. The first rotary encoder 221 may be configured to transmit the input amount signal UWAS2 to the roll map PLC 241.

[0203] The second rotary encoder 223 may be configured to sense the amount of the second electrode sheet ES2 wound onto the third electrode roll ER3 by the rewinder 213. Thus, the second rotary encoder 223 may be configured to generate an exhaustion amount signal WAS2 indicating the length of the second electrode sheet ES2 wound by the rewinder 213. The second rotary encoder 223 may be configured to transmit the exhaustion amount signal WAS2 to the roll map PLC 241.

[0204] The defective portion DES of the second electrode sheet ES2 is cut off on the splicing table 215, and the cut portion is sent to the scrap port 217. The scrap port 217 may be configured to wind up the defective portion DES. After the defective portion DES has been fully wound onto the scrap port 217, the second electrode sheet ES2 connected to the scrap port 217 may be separated from the second electrode sheet ES2 connected to the unwinder 211. The roll pressing process may be continued by splicing together the portion of the second electrode sheet ES2 connected to the unwinder and the portion of the second electrode sheet ES2 connected to the rewinder 213. The portion of the second electrode sheet ES2 connected to the unwinder and the portion of the second electrode sheet ES2 connected to the rewinder 213 may be spliced ​​together on the splicing table 215.

[0205] The second electrode sheet ES2 passing through the splicing table 215 can be pressed by the pressure roll 219 and then wound up by the rewinder 213 onto the third electrode roll ER3.

[0206] The roll map PLC 241 can be configured to collect coordinate data CD2 of the second electrode sheet ES2 based on the consumed amount signal WAS2 and / or the input amount signal UWAS2 of the second electrode sheet ES2.

[0207] The coordinate data CD2 may include coordinate values ​​that are matched to each portion of the second electrode sheet ES2.

[0208] The testing and / or measuring instrument 231 can be configured to test or measure the second electrode sheet ES2.

[0209] According to an exemplary embodiment, the inspection and / or measurement instrument 231 may be a vision inspection instrument or a thickness measurement instrument. The inspection and / or measurement instrument 231 may include a sensing unit 231S and a processing unit 231P. The sensing unit 231S may be configured to sense a physical quantity of the second electrode sheet ES2 to generate an inspection and / or measurement signal IS2 / MS2.

[0210] The sensing unit 231S may be configured to transmit the inspection and / or measurement signals IS2 / MS2 to the processing unit 231P.

[0211] The processing unit 231P may be configured to collect the inspection and / or measurement signals IS2 / MS2 generated by the sensing unit 231S to generate inspection and / or measurement data. The processing unit 231P may be configured to collect coordinate-related inspection and / or measurement data CID2 / CMD2 based on the inspection and / or measurement signals IS2 / MS2 and the coordinate data CD2. The processing unit 231P may be configured to transmit the coordinate-related inspection and / or measurement data CID2 / CMD2 to the roll map PLC 241. According to an exemplary embodiment, the coordinate-related inspection and / or measurement data CID2 / CMD2 or the inspection and / or measurement data ID2 / MD2 related to the time series data may be transmitted from the processing unit 231P to the eIoT 1150. Also, the coordinate-related inspection and / or measurement data CID2 / CMD2 or the inspection and / or measurement data ID2 / MD2 related to the time series data may be transmitted from the eIoT 1150 to the second server 1220.

[0212] The roll map PLC 241 may be in operative communication with the first rotary encoder 221, the second rotary encoder 223, and the test and / or measurement instrument 231 via a wired or wireless data network.

[0213] The coordinate-related inspection and / or measurement data CID2 / CMD2 transmitted to the roll map PLC 241 can be transmitted to the server 1230 via the process PLC 243. Alternatively, the coordinate-related inspection and / or measurement data CID2 / CMD2 can be transmitted from the process PLC 243 to the third server 1230 via the EIF 1100 (see FIG. 5).

[0214] The process PLC 243 can be configured to control the operation of the unwinder 211 , the rewinder 213 , and the pressure roll 219 .

[0215] The process PLC 243 can acquire or store equipment data ED related to the roll pressing equipment. The process PCL 243 can transmit the equipment data ED to the eIoT 1150.

[0216] The roll map PLC 241 and the process PLC 243 can constitute the controller 240 of the roll pressing device 200 .

[0217] The third server 1230 can generate a first-to-first coordinate-related data set (FCDS-1:1232) based on the data (coordinate data CD2, coordinate-related inspection and / or measurement data CID2 / CMD2) transmitted from the process PLC 243. The first-to-first coordinate-related data set (FCDS-1:1232) can be, for example, a roll map or a roll map data set in a roll pressing process. The third server 1230 transmits the first-to-first coordinate-related data set (FCDS-1:1232) to the second server 1220.

[0218] The second server 1220 can generate a first coordinate-related data set (FCDS:1221) by integrating the original data of the inspection data and / or measurement data ID1 / MD1 transmitted from the eIoT 1150 with the first-1 coordinate-related data set (FCDS-1:1232) transmitted from the third server 1230. The second server 1220 can also generate machining coordinate data by processing the coordinate data included in the first coordinate-related data set (FCDS:1221). The second server 1220 can also generate a second coordinate-related data set (SCDS:1222) by associating the machining coordinate data with inspection and / or measurement data of the roll pressing process. The second server 1220 uploads the generated first coordinate-related data set (FCDS:1221) and second coordinate-related data set (SCDS:1222) to the first server 1210 at predetermined intervals.

[0219] The first server 1210 stores a first coordinate-related data set (FCDS: 1211) and a second coordinate-related data set (SCDS: 1212) uploaded at predetermined intervals for a long period of time. The first server 1210 can also generate an equipment data set (EDS: 1214) by receiving equipment data of the roll pressing device from the eIoT 1150. The first server 1210 can also generate a quality data set (QDS: 1215) from the first coordinate-related data set (FCDS: 1211) or from separate inspection and / or measurement data sets transmitted from the second server 1220. The fourth server 1240 can also transmit an identification data set (IDS: 1241) including electrode IDs of electrodes produced from the roll-pressed electrode sheet.

[0220] Once subsequent processes, such as the lamination process, are completed and the identification data set is uploaded to the first server 1210, the first server 1210 can extract data from the various data sets described above to generate monitoring data for battery manufacturing.

[0221] The slitting process can be performed after the roll pressing process. In the slitting process, a wide electrode sheet is divided into multiple pieces along its length. The slitting process can also be equipped with a slitting controller consisting of an unwinder, a rewinder, a first rotary encoder, a second rotary encoder, a roll map PLC, and a process PLC, similar to those shown in FIGS. 4 and 5 above. The slitting process controller 340 transmits coordinate-related inspection and / or measurement data CID3 / CMD3 to the third server 1230 (see FIG. 2). Thereafter, the necessary data sets are generated in each server, and the data set related to the slitting process is finally configured in the first server 1210, just like the coating process and roll pressing processes.

[0222] Therefore, the slitting process will not be described in detail as it is repeated in the coating process and the roll pressing process.

[0223] FIG. 6 illustrates a notching device 400 according to an exemplary embodiment.

[0224] The notching apparatus 400 may include an unwinder 411, a rewinder 413, a notching machine 415, an inspection and / or measuring instrument 431, a first rotary encoder 421, a second rotary encoder 423, an ID marking machine 433, a first electrode ID reader 435, a roll map PLC 441, and a process PLC 443. The roll map PLC 441 and the process PLC 443 configure a notching controller 440 of the notching apparatus. The notching apparatus 400 may be connected to server systems, i.e., a third server 1230, a second server 1220, and a first server 1210, via an EIF 1100 so as to be able to communicate data therewith. The notching apparatus 400 may also be connected to a separate server, eIoT 1150, so as to be able to communicate data therewith. The entire configuration including the notching apparatus 400 and the servers may also be referred to as a notching roll map generation system.

[0225] In the notching process, the fourth electrode roll ER4 may be loaded onto the unwinder 411. The fourth electrode roll ER4 may be a slitting take-up roll that has been taken up after a previous process, for example, a slitting process. The unwinder 411 may be configured to unwind the electrode sheet (fourth electrode sheet ES4) from the fourth electrode roll ER4 in the notching process. The rewinder 413 may be configured to wind the notched fourth electrode sheet ES4 that has been unwound from the unwinder 411 onto the fifth electrode take-up roll ER5. The fourth electrode sheet ES4 may be wound onto the fifth electrode take-up roll ER5 and cut and separated after reaching a predetermined winding length.

[0226] The first rotary encoder 421 may be configured to sense the amount of the fourth electrode sheet ES4 unwound from the fourth electrode roll ER4 by the unwinder 411. The first rotary encoder 421 may be configured to be a contact type or a non-contact type. The first rotary encoder 421 may be configured to generate a unwinding amount (feed amount) signal UWAS4 indicating the length of the fourth electrode sheet ES4 unwound by the unwinder 411. The first rotary encoder 421 may be configured to transmit the unwinding amount signal UWAS4 to the roll map PLC 441.

[0227] The second rotary encoder 423 may be configured to sense the amount of the fourth electrode sheet ES4 wound onto the fifth electrode roll ER5 by the rewinder 413. Thus, the second rotary encoder 423 may be configured to generate a winding amount (consumed amount) signal WAS4 indicating the length of the fourth electrode sheet ES4 wound by the rewinder 413. The second rotary encoder 423 may be configured to transmit the winding amount signal WAS4 to the roll map PLC 441.

[0228] The notching machine 415 may be a device configured to mechanically punch or laser cut and remove predetermined portions of a metal foil on which an electrode active material has been formed to a substantially uniform thickness and width to form electrode tabs. In some embodiments, the notching machine 415 may be a notching press.

[0229] After the notching process, an electrode ID EID can be marked on each electrode tab by an ID marking machine 433. The ID marking machine 433 can be, for example, an inkjet type ink marking machine or a laser type laser marking machine, but is not limited to these.

[0230] The first electrode ID reader 435 may be configured to sense the electrode ID EID. The first electrode ID reader 435 may be configured to read the electrode ID EID in an order indicated by the electrode ID EID. The first electrode ID reader 435 may be, for example, but is not limited to, a bar code reader (BCR). The first electrode ID reader 435 may also be an optical character reader (OCR). The first electrode ID reader 435 may be configured to generate an electrode ID sensing signal EIDS based on sensing the electrode ID EID. The first electrode ID reader 435 may be configured to transmit the electrode ID sensing signal EIDS to the controller 440.

[0231] Meanwhile, the ID marking device 433 or the first electrode ID reader 435 includes a tab sensor and a trigger board to obtain the order (count) information of the electrode ID.

[0232] The tab sensor can determine the length, i.e., pitch, of each electrode. The trigger board can increase a count value based on the electrode length received from the tab sensor. The trigger board can convert the count value for each electrode length into a BCD code and send it to the ID marking machine 433, the first electrode ID reader 435, or the notching controller 440.

[0233] In this way, the ID marking machine 433 or the first electrode ID reader 435 can receive electrode specification information (pitch information), obtain the count value (sequence information) for each pitch, and mark an electrode ID for each electrode tab of that pitch or recognize the electrode ID.

[0234] The inspection and / or measurement instrument 431 may be configured to inspect or measure the fourth electrode sheet ES4 to collect inspection and / or measurement data of the fourth electrode sheet ES4. The inspection and / or measurement instrument 431 may include a sensing unit 431S and a processing unit 431P. The sensing unit 431S may be configured to sense a physical quantity of the fourth electrode sheet ES4 to generate an inspection and / or measurement signal IS4 / MS4.

[0235] The sensing unit 431S may be configured to transmit the inspection and / or measurement signals IS4 / MS4 to the processing unit 431P.

[0236] The processing unit 431P may be configured to collect the inspection and / or measurement signals IS4 / MS4 generated by the sensing unit 431S to generate inspection and / or measurement data. The processing unit 431P may be configured to collect coordinate-related inspection and / or measurement data CID4 / CMD4 based on the inspection and / or measurement signals IS4 / MS4 and the coordinate data CD4. The processing unit 431P may be configured to transmit the coordinate-related inspection and / or measurement data CID4 / CMD4 to the roll map PLC 441. According to an exemplary embodiment, the coordinate-related inspection and / or measurement data CID4 / CMD4 or the inspection and / or measurement data ID4 / MD4 (original data) associated with the time series data may be transmitted from the processing unit 431P to the eIoT 1150. In addition, the coordinate-related inspection and / or measurement data CID4 / CMD4 or the inspection and / or measurement data ID4 / MD4 associated with the time series data may be transmitted from the eIoT 1150 to the second server 1220.

[0237] The roll map PLC441 can be configured to collect coordinate data CD4 of the fourth electrode sheet ES4 based on either the winding amount data or the unwinding amount data of the fourth electrode sheet ES4.

[0238] The coordinate data CD4 may include coordinate values ​​that are matched to each portion of the fourth electrode sheet ES4.

[0239] The roll map PLC 441 may be in operative communication with the first rotary encoder 421, the second rotary encoder 423, the inspection and / or measuring instrument 431, the ID marking machine 433, and the ID reader 435 via a wired or wireless data network.

[0240] The roll map PLC 441 can be configured to transmit the coordinate data CD4 to the processing unit 431P. The processing unit 431P can be configured to associate the inspection and / or metrology data with the coordinate data CD4 to generate coordinate-related inspection and / or metrology data CID4 / CMD4.

[0241] The coordinate-related inspection and / or measurement data CID4 / CMD4 transmitted to the roll map PLC 441 can be transmitted to the third server 1230 via the process PLC 443 and the EIF 1100.

[0242] The process PLC 443 can be configured to control the operation of the unwinder 411 , the rewinder 413 , the notching machine 415 , the ID marking machine 433 , and the ID reader 435 .

[0243] The process PLC 443 may acquire or store equipment data ED related to the notching equipment. The process PCL 443 may transmit the equipment data ED to the eIoT 1150.

[0244] The notching controller 440 may be configured to collect first electrode ID-related data EID D1 including the electrode ID EID and a first coordinate value that is a position of the fourth electrode sheet ES4 in the notching process matched to the electrode ID. The first coordinate value may be acquired based on a signal of an unwinding amount and / or a winding amount of the fourth electrode sheet ES4 when the electrode ID is detected in the notching process.

[0245] The first electrode ID reader 435 can be configured to generate an electrode ID sensing signal EIDS based on sensing the electrode ID EID. The electrode ID reader 435 can be configured to communicate the electrode ID sensing signal EIDS to the notching controller 440.

[0246] Specifically, the first electrode ID reader 435 senses a specific electrode ID on the fourth electrode sheet ES4 and transmits an electrode ID sensing signal EIDS to the roll map PLC 441 of the notching controller 440. The roll map PLC 441 can collect coordinate values ​​(first coordinate values) indicating the position of the portion of the fourth electrode sheet ES4 corresponding to the electrode ID EID from the fourth electrode sheet unwinding amount signal UWAS4 or the fourth electrode sheet winding amount signal WAS4 at the time of sensing the electrode ID sensing signal. That is, in the notching process, the notching controller 440 can collect first electrode ID-related data EIDD1 including the electrode ID and the first coordinate value matched with the electrode ID. The electrode ID-related data in the notching process can be distinguished from the electrode ID-related data in the lamination process described below; the former can be referred to as first electrode ID-related data EIDD1 and the latter as second electrode ID-related data EIDD2.

[0247] According to an exemplary embodiment, the position of the fourth electrode sheet ES4 at the time when the first electrode ID reader 435 senses the electrode ID may be different from the position of the fourth electrode sheet ES4 based on the unwinding amount data sensed by the first rotary encoder 421 or the winding amount data sensed by the second electrode rotary encoder 423.

[0248] According to an exemplary embodiment, the first coordinate value may be a value obtained by subtracting an offset distance, which is the length from the unwinder 411 to the first electrode ID reader 435, from the coordinate value of the fourth electrode sheet ES4 based on the unwinding amount data sensed by the first rotary encoder 421 at the sensing time.

[0249] Alternatively, according to an exemplary embodiment, the first coordinate value may be a value obtained by adding an offset distance, which is the length from the rewinder 413 to the first electrode ID reader 435, to the coordinate value of the fourth electrode sheet ES4 based on the winding amount data sensed by the second rotary encoder 423 at the sensing time.

[0250] The first coordinate value may be one of a start coordinate value, an end coordinate value, and a coordinate value of an electrode tab of a fourth electrode sheet ES4 portion having a predetermined pitch and including electrode tabs marked with the electrode ID EID, or the first coordinate value may include two or more of a start coordinate value, an end coordinate value, and a coordinate value of an electrode tab of a fourth electrode sheet ES4 portion having a predetermined pitch and including electrode tabs marked with the electrode ID.

[0251] The electrode ID EID and the first electrode ID related data EID D1 are transmitted from the roll map PLC 441 to the fourth server 1240 via the process PLC 443 .

[0252] The third server 1230 can generate a first-to-first coordinate related data set (FCDS-1:1232) based on the data (coordinate data CD4, coordinate-related inspection and / or measurement data CID4 / CMD4) transmitted from the process PLC 443. The first-to-first coordinate related data set (FCDS-1:1232) can be, for example, a roll map or roll map data set in a notching process. The third server 1230 transmits the first-to-first coordinate related data set (FCDS-1:1232) to the second server 1220.

[0253] The second server 1220 can generate a first coordinate related data set (FCDS:1221) by integrating the original data of the inspection data and / or measurement data ID4 / MD4 transmitted from the eIoT 1150 with the first-1 coordinate related data set (FCDS-1:1232) transmitted from the third server 1230. The second server 1220 can also generate machining coordinate data by processing the coordinate data included in the first coordinate related data set (FCDS:1221). The second server 1220 can also generate a second coordinate related data set (SCDS:1222) by associating the machining coordinate data with inspection and / or measurement data of the notching process. The second server 1220 uploads the generated first coordinate related data set (FCDS:1221) and second coordinate related data set (SCDS:1222) to the first server 1210 at predetermined intervals.

[0254] The first server 1210 stores a first coordinate-related data set (FCDS: 1211) and a second coordinate-related data set (SCDS: 1212) uploaded at predetermined intervals for a long period of time. The first server 1210 can also generate an equipment data set (EDS: 1214) by receiving equipment data of the notching device from the eIoT 1150. The first server 1210 can also generate a quality data set (QDS: 1215) from the first coordinate-related data set (FCDS: 1211) or from separate inspection and / or measurement data sets transmitted from the second server 1220. The fourth server 1240 can also transmit an identification data set (IDS: 1241) including electrode IDs (EIDs) of electrodes produced from the notched electrode sheet.

[0255] Once a subsequent process, for example, a lamination process, is completed and the identification data set is uploaded to the first server 1210, the first server 1210 can extract data from the various data sets described above to generate monitoring data for battery manufacturing.

[0256] Referring to Figures 7 and 8, the lamination apparatus 500 may include a positive electrode unwinder 511P, a negative electrode unwinder 511N, separation membrane unwinders 511S1, 511S2, electrode cutters 513P, 513N, a guide roll 515, a separation membrane cutter 517, rotary encoders 521P, 521N, seam sensors 523P, 523N, an electrode spacing sensor 525, a second electrode ID reader 527, a controller 540, and servers 1210, 1220, 1230.

[0257] The lamination apparatus 500 can be configured to perform, for example, a lamination and stacking process. As a result of the lamination process, mono-cells MC can be provided. Each mono-cell MC can include a positive electrode EPP, a negative electrode EPN, and a separator. In the stacking process, the mono-cell MC and additional half-cells can be stacked vertically to provide an electrode assembly.

[0258] The unwinders 511P, 511N, 511S1, and 511S2 can be configured to input rolled material into the lamination apparatus 500. More specifically, the unwinder 511P can be configured to unwind the positive electrode sheet ESP from the positive electrode roll ERP, the unwinder 511N can be configured to unwind the negative electrode sheet ESN from the negative electrode roll ERN, and the unwinders 511S1 and 511S2 can be configured to unwind the separation membrane sheets SS1 and SS2 from the separation membrane rolls SR1 and SR2.

[0259] The positive electrode roll ERP and the negative electrode roll ERN can be provided by a series of processes for battery manufacturing, for example, a coating process, a roll pressing process, a selective slitting process, and a notching process.

[0260] To increase the production capacity (e.g., GWh) per line of a battery production facility, a wide electrode sheet is subjected to a coating process and a roll pressing process. In a subsequent slitting process, the wide electrode sheet can be cut according to the specifications of the battery cell. Depending on the specifications of the battery cell, the slitting process may be omitted.

[0261] The positive electrode cutter 513P can be configured to cut the positive electrode sheet ESP. By cutting the positive electrode sheet ESP, a plurality of positive electrode EPPs can be provided. The negative electrode cutter 513N can be configured to cut the negative electrode sheet ESN. By cutting the negative electrode sheet ESN, a plurality of negative electrode EPNs can be provided.

[0262] The controller 540 can control the operation of the positive electrode cutter 513P and the negative electrode cutter 513N, as described below, and can be configured to count the cuts of the positive electrode sheet ESP by the positive electrode cutter 513P and the cuts of the negative electrode sheet ESN by the negative electrode cutter 513N. For example, the controller 540 can be configured to receive a first cut count signal CCSN from the negative electrode cutter 513N and a second cut count signal CCSP from the positive electrode cutter 513P.

[0263] The guide rolls 515 can be configured to define paths for the separator membrane sheets SS1 and SS2. The separator membrane sheets SS1 and SS2 can be aligned side by side by the guide rolls 515. The positive electrode EPP and the negative electrode EPN can be placed on the separator membrane sheets SS1 and SS2. For example, the negative electrode EPN can be placed on the separator membrane sheet SS2, and the positive electrode EPN can be placed on the separator membrane sheet SS1. The positive electrode EPP and the negative electrode EPN can be electrically and physically separated by the separator membrane sheet SS1.

[0264] The separator cutter 517 can be configured to cut the separator membrane sheets SS1 and SS2. Before the separator membrane sheets SS1 and SS2 are cut by the separator cutter 517, the stacked structure of the separator membrane sheets SS1 and SS2, the positive electrode EPP, and the negative electrode EPN can be pressed by nip rolls (not shown) or the like. By cutting the separator membrane sheets SS1 and SS2, a monocell MC including the positive electrode EPP, the negative electrode EPN, and the separator can be provided.

[0265] The first rotary encoder 521N may be configured to sense the amount of rotation of the unwinder 511N. The first rotary encoder 521N may be configured to sense the amount of negative electrode sheet ESN unwound from the negative electrode roll ERN by the unwinder 511N. Thus, the first rotary encoder 521N may be configured to generate a first input amount signal UWSN indicating the length of the negative electrode sheet ESN unwound by the unwinder 511N (i.e., the input amount of the negative electrode sheet ESN). The first rotary encoder 521N may be configured to transmit the first input amount signal UWSN to the controller 540.

[0266] The second rotary encoder 521P may be configured to sense the amount of rotation of the unwinder 511P. The second rotary encoder 521P may be configured to sense the amount of positive electrode sheet ESP unwound from the positive electrode roll ERP by the unwinder 511P. As a result, the second rotary encoder 521P may be configured to generate a second input amount signal UWSP indicating the length of the positive electrode sheet ESP unwound by the unwinder 511P (i.e., the input amount of positive electrode sheet ESP). The second rotary encoder 521P may be configured to transmit the second input amount signal UWSP to the controller 540.

[0267] The first seam detection sensor 523N may be configured to detect a seam in the negative electrode sheet ESN. Here, the negative electrode sheet ESN may include a seam when the negative electrode roll ERN is replaced (i.e., when a subsequent negative electrode roll ERN is loaded onto the unwinder 511N), when an electrode break occurs in the current process (i.e., when the negative electrode sheet ESN is processed by the lamination device 500), or when an electrode break occurs in a previous process (i.e., when the negative electrode roll ERN is processed before being loaded onto the unwinder 511N).

[0268] The first seam detection sensor 523N may be, for example, but is not limited to, a color sensor. The first seam detection sensor 523N may be configured to generate a first seam detection signal JSSN. The first seam detection signal JSSN may be transmitted to the controller 540.

[0269] The second seam detection sensor 523P may be configured to detect a seam in the positive electrode sheet ESP. Here, the positive electrode sheet ESP may include a seam when the positive electrode roll ERP is replaced (i.e., when a subsequent positive electrode roll ERP is loaded onto the unwinder 511P), when an electrode break occurs in the current process (i.e., when the positive electrode sheet ESP is processed by the lamination device 500), or when an electrode break occurs in a previous process (i.e., when the positive electrode roll ERP is processed before being loaded onto the unwinder 511P).

[0270] The second seam detection sensor 523P may be, for example, but is not limited to, a color sensor. The second seam detection sensor 523P may be configured to generate a second seam detection signal JSSP. The second seam detection signal JSSP may be transmitted to the controller 540.

[0271] The electrode spacing sensor 525 can be configured to sense the spacing between the positive electrode EPPs and the negative electrode EPNs. As an example, the electrode spacing sensor 525 can be configured to sense the spacing between the positive electrode EPPs. As another example, the electrode spacing sensor 525 can be configured to sense the spacing between the negative electrode EPNs. As another example, the electrode spacing sensor 525 can be configured to sense each of the spacing between the positive electrode EPPs and the spacing between the negative electrode EPNs.

[0272] The electrode spacing sensor 525 can be configured to generate a spacing sensing signal ISS. The electrode spacing sensor 525 can be configured to communicate the spacing sensing signal ISS to the controller 540.

[0273] The second electrode ID reader 527 may be configured to sense the electrode ID EID. The second electrode ID reader 527 may be configured to read out an order indicated by the electrode ID EID. The second electrode ID reader 527 may be configured to generate an electrode ID sensing signal EIDS based on sensing the electrode ID EID. The second electrode ID reader 527 may be configured to transmit the electrode ID sensing signal EIDS to the controller 540.

[0274] The controller 540 can be configured to control elements of the lamination apparatus 500 such as, for example, the unwinders 511P, 511N, 511S1, 511S2, the positive electrode cutter 513P, the negative electrode cutter 513N, and the separator cutter 517.

[0275] The cutting by the positive electrode cutter 513P and the negative electrode cutter 513N can be performed based on a pitch, which is a fixed repeat unit. The pitch can be the minimum unit length at which the same shape and structure are repeated, such as the length in the running direction between the positive electrode tabs TP of adjacent positive electrode EPPs. Because the positive electrode sheet ESP is cut to substantially the same target length, the input amount of the positive electrode sheet ESP can be proportional to the cut count (e.g., cut count signal CCSP) of the positive electrode cutter 513P. Similarly, because the negative electrode sheet ESN is cut to substantially the same target length, the input amount of the negative electrode sheet ESN can be proportional to the cut count (e.g., cut count signal CCSN) of the negative electrode cutter 513N.

[0276] More specifically, the input amount of the positive electrode sheet ESP may be the sum of the product of the cut count Cutcount_P and the pitch Pitch_P and the offset length OLP1, as shown in Equation 1. Here, the offset length OLP2 may be the length of the positive electrode sheet ESP between the unwinder 511P and the positive electrode cutter 513P.

[0277] [Formula 1]

number

[0278] Similarly, the input amount of the negative electrode sheet ESN may be the sum of the product of the cut count Cutcount_N and the pitch Pitch_N and the offset length OLN2, as shown in Equation 2. Here, the offset length OLN2 may be the length of the negative electrode sheet ESN between the unwinder 511N and the negative electrode cutter 513N.

[0279] [Formula 2]

number

[0280] In another example, the input amount of the negative electrode sheet ESN can be determined from the first input amount signal UWSN of the first rotary encoder 521N, and the input amount of the positive electrode sheet ESP can be determined from the second input amount signal UWSP of the second rotary encoder 521P.

[0281] The controller 540 can be configured to collect second electrode ID-related data EID D2 based on the electrode ID sensing signal EIDS, the input amount of the positive electrode sheet ESP, and the input amount of the negative electrode sheet ESN. The input amount of the negative electrode sheet ESN can be calculated based on the cut count of the negative electrode cutter 513N as described above, or can be determined by the first input amount signal UWSN.

[0282] The input amount of the positive electrode sheet ESP can be calculated based on the cut count of the positive electrode cutter 513P, as described above, or can be determined by the second input amount signal UWSP.

[0283] The controller 540 can be configured to match the coordinate value of the negative electrode EPN sensed by the second electrode ID reader 527 with the electrode ID sensing signal EIDS.

[0284] The controller 540 can be configured to match the coordinate value of the positive electrode EPP coupled with the negative electrode EPN sensed by the second electrode ID reader 527 with the electrode ID sensing signal EIDS.

[0285] Here, the coordinate values ​​of the negative electrode EPN may be any one of the start coordinate values, end coordinate values ​​of the negative electrode EPN, and coordinate values ​​of the negative electrode tab TN. The coordinate values ​​of the negative electrode EPN may also include two or more of the start coordinate values, end coordinate values ​​of the negative electrode EPN, and coordinate values ​​of the negative electrode tab TN. Furthermore, the coordinate values ​​of the positive electrode EPP may be any one of the start coordinate values, end coordinate values ​​of the positive electrode EPP, and coordinate values ​​of the portion of the positive electrode EPP that overlaps with the negative electrode tab TN. Furthermore, the coordinate values ​​of the positive electrode EPP may include two or more of the start coordinate values, end coordinate values ​​of the positive electrode EPP, and coordinate values ​​of the portion of the positive electrode EPP that overlaps with the negative electrode tab TN.

[0286] To match the electrode ID EID with the coordinate values ​​of the positive electrode sheet ESP and the coordinate values ​​of the negative electrode sheet ESN, the lot numbers of the positive electrode roll ERP from which the positive electrode sheet ESP is unwound and the lot numbers of the positive electrode roll ERP from which the negative electrode sheet ESN is unwound must be determined. The seam sensing signals JSSP and JSSN can be used to classify the lots. According to an exemplary embodiment, the controller 540 can update the lot numbers of the positive electrode roll ERP and the negative electrode roll ERN based on the seam sensing signals JSSP and JSSN. This allows the coordinate values ​​of the negative electrode sheet ESN and the coordinate values ​​of the positive electrode sheet ESP to be reset based on the seam sensing signals JSSP and JSSN.

[0287] The second electrode ID related data EIDD2 can include at least one of the coordinate values ​​of the positive electrode sheet ESP and the coordinate values ​​of the negative electrode sheet ESN matched to the electrode ID EID of the negative electrode EPN.

[0288] The controller 540 transmits the electrode ID EID and the second electrode ID-related data EIDD2 to the fourth server 1240. The fourth server 1240 can configure an identification data set (IDS:1241) by combining the electrode ID EID and the first electrode ID-related data EIDD1 transmitted from the notching controller 440 and the electrode ID EID and the second electrode ID-related data EIDD2 transmitted from the lamination controller 540 with the pitch data PD (see FIG. 2). The identification data set (IDS:1241) generated by the fourth server 1240 can be uploaded to the first server 1210 at predetermined intervals.

[0289] The first server 1210 stores a first coordinate-related data set (FCDS: 1211) and a second coordinate-related data set (SCDS: 1212) uploaded at predetermined intervals for a long period of time. The first server 1210 can also generate an equipment data set (EDS: 1214) by receiving equipment data of the notching device from the eIoT 1150. A quality data set (QDS: 1215) can be generated from the first coordinate-related data set (FCDS: 1211) or from separate inspection and / or measurement data sets transmitted from the second server 1220. Once the lamination process is completed and the identification data set is uploaded to the first server 1210, the first server 1210 can extract data from the various data sets described above to generate monitoring data for battery manufacturing.

[0290] FIG. 9 is a diagram illustrating the offset distance of the inspection and / or measurement instrument.

[0291] 9, when each inspection and / or measuring instrument 131, 231, 431 inspects the electrode sheet ES and acquires inspection and / or measurement data, the position signal of the electrode portion is sensed by the first rotary encoder 123, 223, 443 of the rewinder 113, 213, 413. However, at the time the data is acquired, the electrode portion has not yet arrived at the rewinder 113, 213, 413. Therefore, the coordinate values ​​of the electrode portion from which data is acquired must be calculated by adding the distance (offset distance) from each inspection and / or measuring instrument 131, 231, 431 to the rewinder 113, 213, 413 to the coordinate values ​​calculated based on the encoder signal of the rewinder 113, 213, 413 at the time the data is acquired. For example, the coordinate value of the longitudinal axis of electrode portion a, whose loading amount is detected by inspection and / or measuring device 131 of the coating device, is calculated by adding coordinate value A based on the encoder signal of rewinder 113 at the time of detection to offset distance L1 between inspection and / or measuring device 131 and rewinder 113. By the same principle, the coordinate value of the longitudinal axis of electrode portion b, whose loading amount is detected by inspection and / or measuring device 231 of the roll pressing device, is calculated by adding coordinate value B based on the encoder signal of rewinder 213 to offset distance L2 between inspection and / or measuring device 231 and rewinder 213. Similarly, the coordinate value of the longitudinal axis of electrode portion c, whose loading amount is detected by inspection and / or measuring device 431 of the notching device, is calculated by adding coordinate value C based on the encoder signal of rewinder 413 to offset distance L3 between inspection and / or measuring device 431 and rewinder 413. The offset distances L1, L2, and L3 described above are merely examples, and the positions of the inspection and / or measuring instruments in each process are not necessarily determined as shown in Figure 9. The principle of correcting coordinate values ​​using offset distances is the same in the lamination process.

[0292] As described above, in the multiple processes for manufacturing an electrode, the time when specific data is acquired and the signal sensing position of the rotary encoder at that time are different, so in the roll-to-roll process, coordinate correction due to such offset distance is necessary.

[0293] Fig. 10 is a diagram showing the correction of coordinate data when the electrode start and end points are inverted. Fig. 10 shows the coordinate values ​​and coordinate axes of a real electrode or a roll map that simulates a real electrode.

[0294] The top of the electrode (roll map) shows the coordinate axes (X-axis and Y-axis) and coordinate values ​​of the preceding process. In the preceding process, the electrode moves from the unwinder to the rewinder and is wound onto the rewinder. At this time, the coordinate values ​​of the triangle point are measured at 700 meters on the longitudinal axis (X-axis) and 2 meters on the width axis (Y-axis) from the bottom end of the electrode (assuming the electrode width is 3 meters). When the electrode roll is completely wound onto the unwinder UW in the preceding process and then loaded onto the rewinder RW in the following process, the 1200-meter point, which is the end of the electrode roll in the preceding process, becomes 0 meters, which is the start of the following process. In other words, due to the characteristics of the electrode roll, the start and end of the preceding and following processes are reversed. To explain the above inversion based on the coordinate planes of the preceding and succeeding processes, the longitudinal axis (X-axis) of the preceding process is moved symmetrically with respect to the widthwise axis (Y-axis) to become the longitudinal axis (X'-axis) of the succeeding process, and the widthwise axis (Y-axis) of the preceding process is moved symmetrically with respect to the longitudinal axis (X-axis) to become the widthwise axis (Y'-axis) of the succeeding process. Therefore, the coordinate values ​​of the triangle point in the preceding process (700 meters, 2 meters) are also inverted to (500 meters, 1 meter) in the succeeding process.

[0295] FIG. 11 is a diagram showing that the surface and the beginning and end of the electrode sheet ES are reversed depending on the electrode winding direction and unwinding direction.

[0296] In the case of the first electrode path in Figure 11, the black dots are moved between the preceding and succeeding processes, which indicates that the electrodes in the preceding process are inverted in the lengthwise and widthwise directions in the succeeding process. In other words, the electrodes are inverted from start to finish. In this case, the top and back surfaces of the electrode sheet ES are not inverted.

[0297] Secondly, if the rewinder's winding direction in the preceding process is top winding (winds clockwise) and the unwinding direction of the unwinder UW in the following process is bottom unwinding (unwinds counterclockwise), the electrode sheet ES will be turned over at the same time as the top and back sides of the electrode sheet are turned over. For example, an electrode sheet that advances with its top side in the coating process will be turned over and advance with its bottom side in the roll press process. Therefore, these points must be taken into consideration when processing the coordinate data, which will be described later.

[0298] Third, if the winding direction of the rewinder in the preceding process is bottom winding (winding counterclockwise) and the unwinding direction of the unwinder in the following process is top unwinding (unwinding clockwise), the electrode sheet will be constantly inverted, and at the same time, the top and back surfaces of the electrode sheet will also be inverted, just like in the second case.

[0299] Fourth, when the winding direction of the rewinder is bottom winding in the preceding process and the unwinding direction of the unwinder is bottom unwinding in the following process, only the electrode sheet is constantly reversed as in the first case.

[0300] The lower diagram in Figure 11 shows whether or not there is any inversion of the film and surface inversion in the winding and unwinding directions when passing through the coating process, the first and second roll press processes, and the notching process.

[0301] Fig. 12 is a diagram showing how to process coordinate data to generate machining coordinate data. Fig. 12 shows how to process coordinate data by taking into account the above-mentioned reversal and electrode loss that occurs during the electrode manufacturing process.

[0302] FIG. 12 shows, from top to bottom, an absolute coordinate roll map R1 and a relative coordinate roll map r1 for the coating process, an absolute coordinate roll map R2 and a relative coordinate roll map R21 for the roll pressing process, and an absolute coordinate roll map R3 and a relative coordinate roll map r3 for the notching process.

[0303] The relative coordinate roll map represents the actual electrodes at each step, excluding any electrode segments removed during or between steps. The absolute coordinate roll map shows the removed electrode segments along with the remaining actual electrodes (surviving electrodes).

[0304] In a series of roll-to-roll processes, actual electrodes are removed before, after, or within each process due to defects or uneven quality. This results in differences between the roll map coordinate values ​​of the final process and those of each process. If there is no change in electrode length between the start and end processes of the roll-to-roll process, there is no need to match the roll map length. However, due to the nature of mass production, the quality of the start and end portions of the electrode is often uneven, and test production sections before mass production are often removed. Therefore, in reality, the electrode length inevitably changes between the start and end processes for some reason.

[0305] For coordinate data processing, it is necessary to remove all coordinate sections corresponding to the actual electrode portions that have been cumulatively removed in a series of roll-to-roll processes. Then, by correcting the coordinate values ​​of the remaining coordinate sections that have been removed from the electrodes (roll maps) of each process to match the coordinate values ​​of the roll map of the final process, it is possible to match the roll map length of each process with the roll map length of the final process.

[0306] Furthermore, when the starting direction of the roll map coordinate axis of a specific process before the final process is reversed from the starting direction of the roll map coordinate axis of the final process depending on the electrode winding direction in the rewinder RW of the preceding process and the electrode unwinding direction in the unwinder UW of the following process, the starting direction of the roll map coordinate axis of the specific process is matched to the starting direction of the roll map coordinate axis of the final process.

[0307] Referring to FIG. 12, a total of four electrode removal operations were performed in the entire roll-to-roll process as follows.

[0308] (1) Remove the final 100 meters at the end of the coating process (2) Remove 200 meters of defective sections during the roll pressing process (3) Removal of the final 50 meters after the roll pressing process (4) After the notching process is completed, remove the final 100 meters.

[0309] When the distance between the reference points displayed on the electrode changes as the process progresses, the coordinate change due to the change in electrode length described above can be used to calculate the lost electrode length from the change in distance. In Figure 12, a 1200m long electrode is equipped with three reference points at 300m, 600m, and 900m, and the distance between these reference points changes as the process progresses, making it possible to determine the electrode loss.

[0310] The relative coordinate roll map r3 for the final notching process had a total length of 750 meters after four electrode removals. The longitudinal coordinate of the star-marked point, which is the control electrode, was 600 meters and the width coordinate was 40 cm (0.4 meters).

[0311] To match the roll map length in the final process, all coordinate sections of the electrode parts that were removed four times in the entire roll-to-roll process were removed from the relative coordinate roll map of each process in Fig. 12. In this case, the part indicated by the dotted box in Fig. 12 is the roll map part that represents the actual electrode that ultimately survived.

[0312] In this case, the starting direction of the roll map coordinate axis for the coating process is the same as the starting direction of the roll map coordinate axis for the notching process, so coordinate axis matching is not required. However, the starting direction of the roll map coordinate axis for the roll pressing process is reversed, so the starting direction of the coordinate axis for the coating process and the notching process is different, so coordinate axis matching is required.

[0313] In Figure 12, the upper end of the absolute coordinate roll map R2 and the relative coordinate roll map r2 for the roll pressing process show the coordinate values ​​before coordinate axis matching. If these coordinate values ​​are inverted (corrected) as shown at the lower end of the roll map, they will match the starting direction of the roll map coordinate axes for the notching process. Depending on the matching of the roll map coordinate axes, the reference point coordinate values, the coordinate values ​​of the defective section, and the coordinate values ​​of the star-marked points on the absolute coordinate roll map and the relative coordinate roll map for the roll pressing process all change. Specifically, both the longitudinal axis and the transverse axis, which are the coordinate axes of the roll map for the roll pressing process, are matched to the coordinate axis directions of the notching process. In Figure 12, the symbols R2-1 and r2-1 indicate that the coordinate axes of the absolute coordinate roll map R2 and the relative coordinate roll map r2 for the roll pressing process have been inverted. That is, R2-1 represents the absolute coordinate roll map for the roll pressing process with its coordinate axes inverted, and r2-1 represents the relative coordinate roll map for the roll pressing process with its coordinate axes inverted.

[0314] In Figure 12, the roll-to-roll process consists of an odd number of steps (three steps), and the roll map coordinate axis directions of the first step (coating step) and the final step (notching step) are the same. Therefore, the roll map coordinate axes of the second step (roll press step), which is an even number of steps and whose coordinate axis directions are reversed, are matched to the roll map coordinate axes of the final step. However, if a step is added and the entire roll-to-roll process consists of an even number of steps, unlike Figure 12, it is necessary to match the roll map coordinate axes of the odd-numbered steps, such as the first step, with the roll map coordinate axes of the final step, which is an even-numbered step.

[0315] In this way, coordinate axis matching is performed relatively with the final process as the reference.

[0316] The bottom row of Figure 12 shows the final matched roll map created through this coordinate data processing. The coordinate sections corresponding to the removed electrode sections from the roll maps for the coating and roll pressing processes were removed, and the direction of the roll map coordinate axes was also aligned with the coordinate axis direction of the roll map for the notching process. As a result, the roll map coordinate values ​​for the final process, the notching process, exactly match those for the preceding processes, the coating and roll pressing processes. The coordinate values ​​of the longitudinal and transverse axes of the star-marked points are also consistent across all three matched roll maps: 600 meters and 0.4 meters.

[0317] The roll map coordinates of each process are aligned to match the roll map coordinates of the surviving electrode in the final process, and the resulting arrangement is called an overlay roll map. Displaying such an overlay roll map on a display device 1300 allows the quality history or manufacturing history of the final surviving electrode to be understood at a glance. Referring to FIG. 12 , the (overlay) roll map of the roll pressing process indicates that the battery manufactured using the electrode marked with a star originates from an electrode with a rolled thickness (e.g., a rolled thickness within the normal range) indicated by specific hatching during the roll pressing process. Furthermore, the roll map of the coating process indicates that the battery manufactured using the electrode marked with a star originates from an electrode with an excessively high loading amount, which is coated beyond the normal range during the coating process. For example, if a battery manufactured using an electrode marked with a star occurs, it can be determined from the manufacturing history of the coating process that there was a problem with the electrode. Alternatively, the star may be a defect in appearance or other defects. In other words, if a problem occurs in the electrode removed at the star point and this problem is due to a defective appearance, it is possible to easily determine from the overlay roll map which part of the electrode in the electrode manufacturing process is causing the defective appearance.

[0318] FIG. 13 is a diagram showing another example of generating processed coordinate data by processing coordinate data.

[0319] FIG. 13 is an example of an overlay roll map based on processed coordinate data, which is obtained by processing the coordinate data to reflect the above-mentioned changes in electrode length and coordinate axis.

[0320] The upper diagram in Figure 13 is an overlay roll map when no surface inversion occurs between the coating process and the roll pressing process, and the lower diagram is an overlay roll map when surface inversion occurs.

[0321] Referring to the above figure, since no surface inversion occurs, roll map I for the electrode upper surface T in the coating process corresponds to roll map III for the electrode upper surface T in the roll pressing process.

[0322] In this case, the processor of the second server or the controller or computing device that manages the operation of the second server may be provided with control logic 0. That is, roll map I of the electrode top surface, indicated by T in the coating process, corresponds to roll map III of the electrode top surface, indicated by T in the roll press process. In this case, the overlay roll maps of the electrode top surface from the coating process to the notching process are composed of I, III, and V, allowing quality and product history to be confirmed between each process. Similarly, the overlay roll map of the electrode back surface B is composed of II, IV, and V.

[0323] Referring to the diagram below, a surface inversion occurs, and roll map I for the electrode top surface T in the coating process corresponds to roll map IV for the electrode back surface B in the roll pressing process. In this case, control logic 1 can be provided to the processor of the second server or a controller or computing device that manages the operation of the second server. That is, roll map I for the electrode top surface, indicated by T in the coating process, corresponds to roll map IV for the electrode back surface, indicated by B in the roll pressing process. In this case, the overlay roll maps for the electrode top surface from the coating process to the notching process are composed of I, IV, and V, allowing quality and product history to be confirmed between each process. Similarly, the back surface of the electrode also reflects the above surface inversion information, and roll map BII for the electrode back surface in the coating process corresponds to roll map III for the electrode top surface T in the roll pressing process. Therefore, the overlay roll map for the electrode back surface is composed of II, III, and V.

[0324] In this way, the second server 1220 can process the coordinate data for each process to generate machining coordinate data so that it corresponds to the position of the same actual electrode. Also, a second associated data set SCDS:1222 that associates the inspection data and / or measurement data based on the machining coordinate data can be generated. Figures 12 and 13 show a roll map or an overlay roll map, which are examples of the second associated data set SCDS:1222.

[0325] FIG. 14 is a diagram showing an example in which time-series data is associated with electrode IDs and (roll map) coordinate data.

[0326] FIG. 14 shows an example of first electrode ID-related data EID D1 in the notching process. FIG. 14 displays the electrode ID EID "SBKF010098" for the notching process and the corresponding roll map coordinate value (first coordinate value) "89.79" for the notching process of the fourth electrode sheet. Also displayed are the time when the electrode ID and roll map coordinate value were acquired and the lot ID of the fourth electrode sheet. This is merely an example, and the first electrode ID data EID D1 may also include inspection and / or measurement data or other additional process event data for the time.

[0327] FIG. 15 illustrates monitoring data generated by a battery manufacturing system according to an exemplary embodiment.

[0328] Figure 15 shows in diagram form the process of processing each coordinate data between the coating process, roll pressing process (R / S), and notching process to reflect the electrode's start and end reversal and electrode loss. In particular, Figure 15 displays the coordinate data along with the time (time series data) at which the coordinate data was acquired. By processing the coordinate data, it is possible to intuitively compare the corresponding coordinate data, time series data, inspection and / or measurement data from the roll pressing process and coating process with the electrode ID EID of the electrode portion that ultimately survives the notching process (see the diagram on the left of Figure 15).

[0329] FIG. 16 illustrates another example of monitoring data generated by a battery manufacturing system according to an exemplary embodiment.

[0330] Figure 16 shows an example of monitoring data tracing back the process from a completed cell to the coating process.

[0331] For example, a completed cell may have an ID of #1, and this completed cell may contain multiple mono-cells. The ID of each mono-cell may be the ID EID of the negative electrode cell contained in the mono-cell. Therefore, the ID of one completed cell may correspond to the ID of multiple negative electrodes.

[0332] The ID EID of each negative electrode cell can correspond to the coordinate values ​​of the negative electrode and the negative electrode lot ID in the lamination process. The coordinate values ​​of the negative electrode and the negative electrode lot ID can correspond to the coordinate values ​​of a predetermined position on the positive electrode laminated in the lamination process and the positive electrode lot ID.

[0333] Furthermore, the coordinate values ​​of the negative electrode and positive electrode in the lamination process can correspond to the coordinate values ​​and negative electrode lot ID in the notching process.

[0334] The coordinate values ​​of the notching process and the coordinate values ​​of the slitting process, roll pressing process, and coating process corresponding to the lot ID can be searched from the first coordinate related data set (FCDS:1211) and the second coordinate related data set (SCDS:1212) described above. In addition, the coordinate values ​​of each process are also associated with the equipment data (e.g., CTP data) and quality data (e.g., CTQ data) of the process.

[0335] The above coordinate values ​​and various data can be extracted not only for the negative electrode but also for the positive electrode that is bonded to the negative electrode in the lamination process.

[0336] Thus, the present invention allows easy and fast retrieval of data relating to battery manufacturing throughout the entire battery manufacturing process.

[0337] FIG. 17 is a flowchart illustrating a method for manufacturing a battery according to an exemplary embodiment.

[0338] 2 and 17, in step P110, a first coordinate related dataset (FCDS:1221) is acquired, which associates coordinate data CD indicating the position of each electrode moving in a plurality of steps with the inspection data and / or measurement data of the electrode acquired in each of the plurality of steps. The first coordinate related dataset (FCDS:1221) may be generated by the second server 1220. In this case, a first-to-first coordinate related dataset (FCDS-1:1232) which associates processed data of the inspection data and / or measurement data or part of the processed data with the coordinate data may be generated by the third server 1230. The second server 1220 may combine the first-to-first coordinate related dataset (FCDS-1:1232) with original data of the inspection data and / or measurement data received from the eIoT 1150 to generate the first coordinate related dataset (FCDS:1221). The generated first coordinate related data set (FCDS: 1221) can be uploaded to the first server 1210 at predetermined intervals.

[0339] In step P120, a second coordinate related data set can be acquired in which machining coordinate data obtained by processing the coordinate data of each process so that it corresponds to the position of the same actual electrode is associated with the inspection data and / or measurement data of each of the processes. For example, the second server 1220 can generate the machining coordinate data through the above-mentioned processing process of the coordinate data. Furthermore, the second server 1220 can generate the second coordinate related data set by associating the machining coordinate data with the inspection data and / or measurement data of each of the processes. The generated second coordinate related data set (SCDS:1222) can be uploaded to the first server 1210 at predetermined intervals.

[0340] In step P130, an identification data set including electrode IDs for distinguishing the electrodes can be obtained.

[0341] The fourth server can acquire first electrode ID related data including coordinate values ​​of the electrode (e.g., negative electrode) corresponding to the electrode ID in a process (e.g., notching process) in which an electrode ID is assigned among the multiple processes.

[0342] In addition, the fourth server can acquire second electrode ID related data including at least one of the coordinate values ​​of the electrode (e.g., negative electrode) corresponding to the electrode ID in a process (e.g., lamination process) of combining the electrode with another electrode among a plurality of processes, and the coordinate values ​​of another electrode (e.g., positive electrode) combined with the electrode and corresponding to the electrode ID.

[0343] The fourth server 1240 may generate an identification data set (IDS: 1241) using the first electrode ID-related data, the second electrode ID-related data, the electrode ID, and the pitch data. The generated identification data set (IDS: 1241) may be uploaded to the first server 1210 at predetermined intervals.

[0344] In step P140, the electrode ID EID selected from the identification data set can be associated with machining coordinate data of the second coordinate association data set (SCDS:1212) corresponding to the electrode ID. In this case, the method can further include a step of associating machining coordinate data of each process with coordinate values ​​included in the first electrode ID association data and / or second electrode ID association data via the electrode ID. The first server 1210 can associate the electrode ID EID selected from the identification data set (IDS:1213) with machining coordinate data of the second coordinate association data set (SCDS:1212) corresponding to the electrode ID.

[0345] In step P150, the first server 1210 may generate monitoring data for battery manufacturing based on the association data between the electrode ID and the processing coordinate data.

[0346] In this case, the electrode ID and the machining coordinate data of each process related thereto, The inspection data and / or measurement data of each process related to the electrode ID and the processing coordinate data can be compared between a plurality of processes to generate inter-process monitoring data (see FIGS. 15 and 16).

[0347] In addition, at least one of equipment data acquired by each of a plurality of process equipments and / or at least one of quality data related to the quality of the electrode among the inspection data and / or measurement data may be additionally associated with the machining coordinate data or the machining coordinate data related to the electrode ID. For this purpose, the first server 1210 may additionally include an equipment data set (EDS: 1214) and a quality data set (QDS: 1215).

[0348] The data set included in the first server 1210 constitutes a type of data mart that compiles data related to the electrode manufacturing process. In particular, the data related to the electrode manufacturing process may be embodied in the form of a roll map. In this sense, the data set in the first server 1210 may be referred to as a roll map data mart. For example, an upper server such as a data warehouse may include not only a data mart related to the electrode manufacturing process, but also a mixer data mart related to data on the mixing process, an assembly data mart related to data on the assembly process, and an activation data mart related to the subsequent activation process. The present invention is a groundbreaking technology that simplifies production management and quality control throughout the entire battery manufacturing process and ensures quality traceability by implementing a data mart related to the electrode manufacturing process (roll map data mart) in the first server, which is an upper server, and organically linking the roll map data mart with other data marts.

[0349] FIG. 18 illustrates a battery manufacturing system according to an exemplary embodiment.

[0350] The overall configuration of Fig. 18 is similar to that of Fig. 1. However, Fig. 18 differs in that a user device 11 is provided instead of the display device 1300.

[0351] The user equipment 11 may be any device for communicating with the battery manufacturing system 10, such as a workstation computer, a notebook computer, a laptop computer, a desktop computer, a tablet computer, a mobile device such as a smartphone, or a wearable device. The user equipment 11 may be configured to generate a request R for loading monitoring data M of the battery manufacturing process. The user equipment 11 may include an input tool for inputting the request R and a display device for displaying the monitoring data M.

[0352] The request R includes inputting a battery product ID associated with the electrode ID or information about the battery product ID as a search parameter.

[0353] As described above, electrodes are manufactured through an electrode manufacturing process including multiple sub-processes such as a coating process, a roll press process, and a slitting process. An electrode ID (EID) may be assigned to the electrode, for example, through a notching process. The electrode with the electrode ID (EID) assigned may be combined with other electrodes through a combining process (e.g., a lamination process or a winding process using a winder). The lamination process allows the electrodes to form a unit cell, such as a monocell or a bicell. After lamination, a battery assembly including the unit cell is manufactured by a subsequent processing device 600. A separate ID may be assigned to the battery assembly. The separate ID may be associated with the electrode ID. Therefore, by querying the separate ID, events in the battery process related to the electrode ID can be tracked.

[0354] A finished battery cell, a battery module including the battery cell, or a battery pack including the battery cell or battery module can perform functions that match the intended use of the product, and therefore can be called a single battery product.

[0355] The unit cell is a semi-finished battery. A battery assembly produced between the manufacturing process of the unit cell and the manufacturing process of the finished battery cell can be called a semi-finished battery. For example, an electrode assembly such as a stack cell formed by stacking unit cells or a folded cell formed by folding unit cells is a semi-finished battery. Also, a jelly-roll-shaped electrode assembly in which a positive electrode and a negative electrode are wound with a separator interposed therebetween is also a semi-finished battery. Furthermore, the entire battery assembly (e.g., a packaging cell) from inserting the electrode assembly into a battery housing, filling the housing with an electrolyte, and undergoing an activation process is also a semi-finished battery. The semi-finished battery is given predetermined electrical characteristics through an activation process, becoming a finished battery cell.

[0356] 18, the subsequent process equipment 600 may represent an equipment that performs various subsequent processes after the lamination process. As shown in FIG. 18, process event data generated from the controllers of the subsequent process equipment 600, such as the stacking process, folding process, housing insertion process, liquid injection process, activation process, modularization process, and packing process, may also be transmitted to the servers 1230, 1220, and 1210.

[0357] A unique identification (ID) indicating each process may be assigned to the semi-finished battery product and / or the finished battery product manufactured in each subsequent process, and the process event data acquired in each subsequent process may be associated with the identification information.

[0358] FIG. 19 is a schematic diagram illustrating an example of process event data related to electrode ID EID and / or battery product ID.

[0359] In FIG. 16, it was explained that the ID of a completed battery cell, the ID of a mono cell included in the battery cell, the ID of a negative electrode included in the mono cell, and coordinate data corresponding to the actual electrode in the electrode manufacturing process corresponding to the negative electrode ID can be associated with each other.

[0360] 19 shows that the electrode ID EID is associated with the battery cell ID (%1) manufactured through the activation process, as well as the module ID (@1) of the battery module including the battery cell, and the pack ID (△1) of the battery pack including the battery cell or battery module. The form of each ID shown in FIG. 19 is an example and is not limited to this.

[0361] The electrode ID, the ID of each semi-finished product, or the finished product may be a number, a letter, various symbols, or a combination thereof. The ID may include, but is not limited to, electronically scannable symbols such as a barcode or a QR code.

[0362] 19, process event data acquired in processes for manufacturing semi-finished batteries and battery products may be stored in the first server 1210 in association with the ID of the process. Furthermore, the semi-finished or product ID of each process may be stored in the first server 1210 in association with the electrode ID (EID) of the electrode included in each semi-finished or product. Therefore, if the ID of a semi-finished battery or a battery product is known, the electrode ID of at least one electrode included in the semi-finished or product may be derived by requesting the first server 1210. The first server 1210 may derive the electrode ID associated with the battery product ID from an identification data set (IDS: 1213) provided in the first server 1210.

[0363] Therefore, information about the electrode related to the electrode ID in at least one of the multiple steps for producing the electrode can be derived. The multiple steps for producing the electrode include multiple sub-steps (coating step, roll pressing step, slitting step) in which the electrode sheet undergoes predetermined processing and moves. In other words, the steps before cutting the electrode portion from the electrode sheet to produce an electrode (in the narrow sense) also count as multiple steps for producing the electrode. The multiple steps for producing the electrode also include a notching step that imparts an electrode ID to the electrode sheet and a lamination step in which the electrode sheet is cut with a cutter to form a monocell.

[0364] The information about the electrodes may include coordinate data related to the electrode IDs, and the coordinate data may indicate the positions of the electrode sheets or electrodes moving in the steps.

[0365] 16, coordinate data relating to the position of each electrode in the electrode manufacturing process associated with the electrode ID can be derived. The first server 1210 can derive the coordinate data corresponding to the electrode ID from a first coordinate-related dataset (FCDS:1221), a first-to-first coordinate-related dataset (FCDS-1), and a second coordinate-related dataset (SCDS:1222) stored in the first server 1210. In addition, process event data relating to the electrode ID and / or coordinate data can be derived from a data mart stored in the first server 1210, such as the first coordinate-related dataset (FCDS:1221), the first-to-first coordinate-related dataset (FCDS-1), the second coordinate-related dataset (SCDS:1222), the equipment dataset EDS, and the quality dataset QDS. Such process event data can also be included in the information related to the electrode.

[0366] Specifically, the process event data may include at least one of inspection data and / or measurement data for each electrode, time series data indicating the time when each data was acquired, and equipment data acquired at each process equipment for electrode manufacturing.

[0367] Referring again to FIG. 18, when the user inputs, for example, the ID of a specific battery pack as a search parameter into the user device 11, a request R to load monitoring data M of the battery manufacturing process related to the battery pack is transmitted to the battery manufacturing system 10 or the first server 1210. Input of the search parameters may include scanning an ID, including a barcode or QR code. The search parameters are input into the user device by electronically scanning the ID. The user device may include a predetermined application program that converts the electronically scanned signal into search parameters. Of course, the user may also generate the request R to load the monitoring data M by directly inputting letters, numbers, symbols, etc. that indicate the ID.

[0368] In response to the request, the first server 1210 can derive IDs of the battery products (battery modules, battery cells), semi-finished battery products (electrode assemblies, unit cells), and electrodes included in the semi-finished battery products included in the specific battery pack by executing instructions using at least one processor. It can also derive data (process event data) related to process events that occurred during the manufacturing process of the battery products, semi-finished battery products, and electrodes. As a result, the first server 1210 can generate monitoring data M in which the IDs and process event data for each process are displayed in association with each other, as shown in the diagrams of FIGS. 16 and 19, for example.

[0369] In addition, when another battery product ID related to the electrode ID, for example, a battery module ID, is input, the IDs of the battery products (battery cells), semi-finished battery products (electrode assemblies, unit cells), and electrodes included in the semi-finished battery products included in the battery module, and corresponding process event data can be derived. Therefore, the first server 1210 can generate monitoring data M related to the manufacturing process of the internal components of the battery module in association with a specific battery module.

[0370] In addition, when another battery product ID related to the electrode ID, for example, a battery cell ID, is input, the IDs of the semi-finished battery products (electrode assemblies, unit cells) included in the battery cell, the electrodes included in the semi-finished battery products, and corresponding process event data can be derived. Thus, the first server 1210 can generate monitoring data M related to the manufacturing process of the internal components of the battery cell in association with a specific battery cell.

[0371] Meanwhile, by inputting a specific battery product ID as a search parameter, it is possible to obtain monitoring data M related to not only the lower-level battery products of that battery product but also the upper-level battery products of the battery product. For example, by inputting the ID of a battery cell as a search parameter, not only monitoring data related to the manufacturing process of the internal components of the battery cell but also monitoring data related to the battery module and battery pack including the battery cell are generated, and the user can receive such monitoring data as well.

[0372] In addition to the battery product ID, information related to the battery product ID can also be used as a search parameter. For example, unique identification information can be assigned to a place (e.g., a factory) or an object (e.g., an energy storage system (ESS) or an electric vehicle) where the battery product is installed. The identification information can be linked to the pack ID of the battery pack installed in the place or object where the battery pack is installed, and stored in a database or another management server. Therefore, in addition to directly inputting the battery product ID as a search parameter, information related to the battery product ID, such as identification information of the place or object where the battery product is installed, can be input as a search parameter to generate a request R for loading the monitoring data M of the battery manufacturing process in the first server 1210.

[0373] In response to the request R, the first server 1210 can transmit the generated monitoring data M to the user device 11. The first server 1210 can be configured to generate an API (Application Programming Interface) call in response to the request R. The API call can include information for identifying process event data, such as coordinate data, inspection data, and / or measurement data associated with an electrode ID. The first server 1210 can transmit the API call to another server.

[0374] The user device 11 may receive monitoring data M of the battery manufacturing process from the first server 1210. The monitoring data M includes monitoring data M of the battery manufacturing process related to the electrode ID assigned to at least one electrode included in a battery product. The monitoring data M may include coordinate data related to the electrode ID as coordinate data indicating the position of each electrode moving in a plurality of processes.

[0375] The user device 11 can display the received monitoring data M on a display device or the like.

[0376] Therefore, the user can understand various process events that have occurred in the battery process from the monitoring data M.

[0377] FIG. 20 is a flowchart illustrating a method for tracking process events in a battery manufacturing process according to an exemplary embodiment.

[0378] 18 and 20, in step P10, search parameters may be input. The search parameters may be a battery product ID associated with an electrode ID or information related to the battery product ID. The search parameters may be input by the user device 11. By inputting the search parameters, a request R for loading monitoring data M of the battery manufacturing process into the user device 11 may be transmitted to the first server 1210.

[0379] In step P20, the server may generate monitoring data M of the battery manufacturing process associated with the electrode ID assigned to at least one electrode included in the battery product based on the search parameters. The first server 1210 may generate an API call in response to the request R. To generate the monitoring data M, the server 1210 may send the API call to another server.

[0380] The monitoring data M may include information about the electrode associated with the electrode ID in at least one step of a plurality of steps for producing the electrode.

[0381] The information about the electrodes may include coordinate data related to the electrode ID, and the coordinate data may indicate the position of the electrode sheet or electrode moving in the plurality of steps.

[0382] The coordinate data may be processed coordinate data obtained by processing the coordinate data for each process so that it corresponds to the position of the same actual electrode. The server 1210 can extract the processed coordinate data from, for example, the second coordinate association data set (SCDS:1222) and associate it with the electrode ID. This allows the position of the actual electrode in each process to be determined from the electrode ID associated with the battery product ID.

[0383] The server 1210 can extract not only the coordinate data related to the electrode ID but also process event data related to the electrode ID and / or the coordinate data from a data mart including a data set stored in the server, and include the extracted data in the monitoring data M. The process event data can also be one of the pieces of information related to the electrode.

[0384] The process event data may include at least one of inspection data and / or measurement data for each electrode, time series data indicating the time when each data was acquired, and equipment data acquired at each process equipment for electrode manufacturing.

[0385] The monitoring data M may include inter-process monitoring data obtained by comparing electrode machining coordinate data in one process with electrode machining coordinate data in another process. The monitoring data may also include inter-process monitoring data obtained by comparing first process event data related to electrode machining coordinate data in one process with second process event data related to electrode machining coordinate data in another process. The server 1210 may generate the inter-process monitoring data from data in a data mart including data sets stored in the server.

[0386] The server 1210 can associate the ID of the semi-finished battery (e.g., mono cell) with the electrode ID and / or coordinate data corresponding to the electrode ID based on data in a data mart including a data set stored in the server. Therefore, the battery product ID and / or ID information of the semi-finished battery related to the electrode ID can also be included in the monitoring data M.

[0387] The server can transmit the generated monitoring data M to the outside.

[0388] In step P30, the user equipment 11 can receive the monitoring data M transmitted to the outside.

[0389] In step P40, the user equipment 11 can display the received monitoring data M. The user equipment 11 can include a display device for displaying the monitoring data M.

[0390] In this way, according to the present invention, by inputting the battery product ID when necessary to analyze the quality of the battery product or to understand the cause of a defect, process events in the battery manufacturing process can be easily understood.

[0391] According to the present invention, a data mart is created with data related to the electrode manufacturing process, and the data collected in the data mart can be used to easily obtain process event data for the battery manufacturing process, which makes it possible to easily find events that cause defects in the battery manufacturing process and the locations (coordinates) of the electrodes where the defects originate.

[0392] The present invention has been described in more detail above with reference to the drawings and embodiments, etc. However, the configurations shown in the drawings or embodiments in this specification are merely one embodiment of the present invention and do not represent all of the technical ideas of the present invention, and therefore, at the time of filing this application, there may be various equivalents and modifications that can replace them. [Explanation of symbols]

[0393] 10 Battery Manufacturing System 11 User Equipment 100 Coating Equipment 200 Roll pressing device 300 Slitting Machine 400 Notching Device 500 Lamination Equipment 600 Subsequent process equipment 1100 EIF 1210 First Server 1220 Second Server 1230 Third Server 1240 4th Server 1300 display device

Claims

1. inputting a battery product ID associated with an electrode ID or information about the battery product ID as a search parameter; receiving battery manufacturing process monitoring data associated with the electrode ID generated based on the search parameters; The method for tracking process events in a battery manufacturing process, wherein the monitoring data includes information about the electrode associated with the electrode ID in at least one process of a plurality of processes for producing the electrode.

2. 2. The method of claim 1, wherein the information about the electrodes includes coordinate data associated with the electrode ID, and the coordinate data indicates a position of an electrode sheet or an electrode that moves in the plurality of processes.

3. The method for tracking process events in a battery manufacturing process according to claim 1 , wherein the information relating to the battery product ID includes identification information of a place or object where the battery product is installed.

4. The method for tracking process events in a battery manufacturing process according to claim 1 , further comprising the step of displaying the received monitoring data.

5. 2. The method for tracking process events in a battery manufacturing process according to claim 1, wherein the battery product ID is at least one of a battery pack ID, a battery module ID, and a battery cell ID.

6. 3. The method for tracking process events in a battery manufacturing process according to claim 2, wherein the coordinate data is processed coordinate data obtained by processing coordinate data for each process so that the coordinate data corresponds to the position of the same actual electrode.

7. 3. The method for tracking process events in a battery manufacturing process according to claim 1, wherein the information about the electrode includes process event data related to the electrode ID and / or the coordinate data.

8. 8. The method for tracking process events in a battery manufacturing process according to claim 7, wherein the process event data includes at least one of inspection data and / or measurement data of each electrode, time-series data indicating the time when each data was acquired, and equipment data acquired in each process equipment for manufacturing the electrodes.

9. The monitoring data is Inter-process monitoring data comparing electrode machining coordinate data in one process with electrode machining coordinate data in another process, and / or Inter-process monitoring data obtained by comparing first process event data related to machining coordinate data of an electrode in one process with second process event data related to machining coordinate data of an electrode in another process.

8. The method of claim 7, comprising:

10. The method for tracking process events in a battery manufacturing process according to claim 1 , wherein the monitoring data further includes battery semi-finished product ID information related to the battery product ID and / or the electrode ID.

11. a first server including a first coordinate association data set in which coordinate data indicating the position of each electrode moving in a plurality of steps is associated with the inspection data and / or measurement data of each electrode acquired in the plurality of steps, and an identification data set including an electrode ID for distinguishing the electrodes; a memory for storing instructions; Execute the instructions, 1) associating an electrode ID selected from the identification data set with coordinate data in the first coordinate association data set corresponding to the electrode ID; 2) generating monitoring data for battery manufacturing based on the association data between the electrode ID and the coordinate data; and one or more processors configured to perform operations including:

12. The first coordinate related data set comprises: electrode lot data representing the electrode material; processed data of the inspection data and / or measurement data; and Original data of the inspection data and / or measurement data 12. The battery manufacturing system of claim 11, comprising at least one of:

13. The first server 12. The battery manufacturing system of claim 11, further comprising a second coordinate association data set in which processing coordinate data obtained by processing the coordinate data of each process so that it corresponds to the position of the same actual electrode is associated with the inspection data and / or measurement data of each process.

14. 1) When the coordinate data is inverted due to the positions of the electrode start portion and the electrode end portion being inverted between processes, correction is performed to make the inverted coordinate data consistent between processes. 2) When the coordinate data is inverted due to the corresponding surface of the electrode being inverted between processes depending on the electrode winding direction and the electrode unwinding direction, correction is performed to make the inverted coordinate data consistent between processes. 3) When the coordinate data fluctuates between processes due to electrode loss occurring during and / or between processes, correction is performed to make the fluctuated coordinate data consistent between processes. The battery manufacturing system according to claim 13 , wherein the coordinate data is processed into the processed coordinate data by at least one of the following corrections:

15. 14. The battery manufacturing system of claim 13, wherein the operations further include associating the machining coordinate data with an electrode ID selected from the identification data set.

16. The step of generating the monitoring data includes:

16. The battery manufacturing system of claim 15, further comprising a step of generating inter-process monitoring data by comparing, between a plurality of processes, processing coordinate data for each process related to the electrode ID and inspection data and / or measurement data for each process related to the electrode ID and processing coordinate data.

17. The identification data set comprises: 1) First electrode ID related data including coordinate values ​​of the electrode corresponding to the electrode ID in a process in which the electrode ID is assigned among a plurality of processes; 2) second electrode ID related data including at least one of coordinate values ​​of the electrode corresponding to the electrode ID in a step of coupling the electrode with another electrode among the plurality of steps, and coordinate values ​​of another electrode coupled to the electrode and corresponding to the electrode ID; 3) Pitch data indicating the length of the electrode and / or the length of other electrodes coupled to the electrode The battery manufacturing system of claim 14 , further comprising at least one of the following data:

18. 18. The battery manufacturing system of claim 17, wherein the operation further includes a step of associating processing coordinate data of each process with coordinate values ​​included in the first electrode ID-related data and / or the second electrode ID-related data via the electrode ID.

19. The first server 1) an equipment data set acquired from each of a plurality of process equipment for manufacturing electrodes; 2) A quality data set relating to the quality of the electrodes among the inspection data and / or measurement data.

19. The battery manufacturing system of claim 11, further comprising at least one data set of:

20. 20. The battery manufacturing system of claim 19, wherein each data set included in the first server further includes time series data indicating a time point when the data included in each data set was acquired, and the data included in each data set is associated with the corresponding time series data.

21. The operations further include associating equipment data and / or quality data with coordinate data and / or processing coordinate data associated with the electrode ID; The step of generating the monitoring data includes: The battery manufacturing system according to claim 20 , further comprising a step of generating monitoring data based on association data of the electrode ID, the coordinate data and / or the processing coordinate data, and the equipment data and / or the quality data.

22. The battery manufacturing system of claim 14 , further comprising a second server that generates and uploads the first coordinate association data set and / or the second coordinate association data set to the first server.

23. a third server that generates a first-first coordinate association data set that associates processed data of the inspection data and / or measurement data or a portion of the processed data with the coordinate data, and transmits the first-first coordinate association data set to the second server; The battery manufacturing system of claim 22, wherein the second server integrates the first-first coordinate association data set into the first coordinate association data set.

24. 18. The battery manufacturing system of claim 17, further comprising a fourth server that generates and uploads the identification data set to the first server.

25. 14. The battery manufacturing system of claim 13, wherein the first coordinate related data set and / or the second coordinate related data set is or includes a roll map data set representing properties of an actual electrode material based on the coordinate data or the machining coordinate data.

26. acquiring a first coordinate association data set in which coordinate data indicating the position of each electrode moving in the plurality of steps is associated with inspection data and / or measurement data of the electrode acquired in each of the plurality of steps; acquiring a second coordinate association data set in which machining coordinate data obtained by processing the coordinate data of each process so as to correspond to the position of the same actual electrode and the inspection data and / or measurement data of each process are associated with each other; obtaining an identification data set including an electrode ID for distinguishing said electrodes; associating an electrode ID selected from the identification data set with machining coordinate data in the second coordinate association data set corresponding to the electrode ID; generating monitoring data for battery manufacturing based on association data between the electrode ID and the processing coordinate data.

27. The step of generating the monitoring data includes: The electrode ID and processing coordinate data for each process related thereto; Inspection data and / or measurement data for each process related to the electrode ID and the machining coordinate data, The method for manufacturing a battery according to claim 26, further comprising the step of generating in-process monitoring data by comparing between a plurality of processes.

28. The identification data set comprises: 1) First electrode ID related data including coordinate values ​​of the electrode corresponding to the electrode ID in a process to which an electrode ID is assigned among a plurality of processes; 2) Second electrode ID related data including at least one of coordinate values ​​of the electrode corresponding to the electrode ID in a step of coupling the electrode with another electrode among the plurality of steps, and coordinate values ​​of another electrode coupled to the electrode and corresponding to the electrode ID. and further including at least one of the following data:

28. The battery manufacturing method according to claim 27, further comprising the step of associating processing coordinate data of each process with coordinate values ​​included in the first electrode ID related data and / or the second electrode ID related data via the electrode ID.

29. 28. The battery manufacturing method of claim 27, further comprising a step of additionally associating at least one of equipment data acquired by each of a plurality of process equipments and / or at least one of quality data related to electrode quality among the inspection data and / or measurement data with the machining coordinate data or the machining coordinate data related to the electrode ID.

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