Secondary battery manufacturing system

Abstract

A cell tracking method, according to one embodiment of the present disclosure, may comprise the steps of: acquiring a cell ID corresponding to a semi-finished cell; acquiring a holder ID corresponding to a holder in which the semi-finished cell is disposed; and matching the cell ID with the holder ID.

Description

Secondary battery manufacturing system

[0001] This application claims the benefit of priority to Republic of Korea Patent Application No. 2024-0005395, filed January 12, 2024, and Republic of Korea Patent Application No. 2024-0195586, filed December 24, 2024, the entire contents of which are incorporated herein by reference.

[0002] The embodiments disclosed in this document relate to a secondary battery manufacturing system.

[0003] Unlike primary batteries, secondary batteries can be charged and discharged multiple times. They are widely used as a power source for various wireless devices, including handsets, laptops, and cordless vacuum cleaners. Recently, improved energy density and economies of scale have dramatically reduced the per-unit manufacturing cost of secondary batteries. Furthermore, as the range of battery electric vehicles (BEVs) has increased to match that of fuel-powered vehicles, the primary use of secondary batteries is shifting from mobile devices to mobility.

[0004] Secondary batteries are manufactured through electrode processes, assembly processes, and activation processes. To improve yield and reliability in the secondary battery manufacturing process, ensuring traceability is crucial. Accordingly, various studies are being conducted to ensure traceability in the secondary battery manufacturing process.

[0005] The technical idea of ​​the present disclosure is to provide a secondary battery manufacturing system with improved traceability.

[0006] A cell tracking method according to one embodiment of the present disclosure may include a step of obtaining a cell ID corresponding to a semi-finished cell, a step of obtaining a holder ID corresponding to a holder in which the semi-finished cell is placed, and a step of matching the cell ID and the holder ID.

[0007] In a cell tracking method according to one embodiment of the present disclosure, the cell ID may be a virtual ID generated using data related to the semi-finished cell.

[0008] In a cell tracking method according to one embodiment of the present disclosure, the semi-finished cell is a jelly roll having a structure wound with a positive electrode, a negative electrode, and a separator interposed therebetween, and the step of obtaining the cell ID may include a step of generating a jelly roll ID corresponding to the jelly roll based on a first sub-process included in a secondary battery manufacturing process.

[0009] In a cell tracking method according to one embodiment of the present disclosure, the first sub-process may be a process of loading the jelly roll placed on a tray into a first carrier, and the step of generating the jelly roll ID may include a step of identifying the tray ID by detecting a code object of the tray, and a step of generating the jelly roll ID based on the tray ID.

[0010] In a cell tracking method according to one embodiment of the present disclosure, the step of generating the jelly roll ID may include the step of loading an electrode lot ID and an electrode count of the jelly roll based on identification of the tray ID, the step of determining a tray coordinate on the tray of the jelly roll, and the step of generating the jelly roll ID further based on the electrode lot ID, the electrode count, and the tray coordinate.

[0011] In a cell tracking method according to one embodiment of the present disclosure, the method may further include a step of obtaining a roll map of the semi-finished cell based on an electrode manufacturing process included in the secondary battery manufacturing process, and a step of matching the roll map and the cell ID.

[0012] In a cell tracking method according to one embodiment of the present disclosure, the holder is a carrier on which the semi-finished cell is placed during the secondary battery manufacturing process, and the step of obtaining the holder ID may include a step of obtaining a carrier ID corresponding to the carrier based on a second sub-process included in the secondary battery manufacturing process.

[0013] In a cell tracking method according to one embodiment of the present disclosure, the second sub-process may be a process of loading the semi-finished cell onto a second carrier and combining the semi-finished cell loaded onto the second carrier with a lower insulator, and the step of acquiring the carrier ID may include a step of identifying the second carrier ID by detecting a code object of the second carrier, and the step of matching the cell ID and the holder ID may include a step of matching the cell ID and the second carrier ID.

[0014] A cell tracking method according to one embodiment of the present disclosure may further include a step of matching a first carrier ID corresponding to a first carrier on which the semi-finished cell is loaded and the cell ID based on a first sub-process included in a secondary battery manufacturing process, wherein the step of matching the cell ID and the second carrier ID includes a step of matching the first carrier ID and the second carrier ID, and the first sub-process may be characterized in that it is performed before the second sub-process is performed.

[0015] A cell tracking method according to one embodiment of the present disclosure may further include a step of identifying the first carrier ID by detecting the code object of the first carrier based on the second sub-process, and the step of matching the first carrier ID and the second carrier ID may include a step of matching the first carrier ID and the second carrier ID based on a first time at which the first carrier ID is identified based on the second sub-process and a second time at which the second carrier ID is identified based on the second sub-process.

[0016] A cell tracking method according to one embodiment of the present disclosure may further include a step of acquiring process data corresponding to the second sub-process targeting the semi-finished cell, and a step of matching the carrier ID and the process data.

[0017] In a cell tracking method according to one embodiment of the present disclosure, the holder is a cell case or pouch into which the semi-finished cell is inserted during a third sub-process included in the secondary battery manufacturing process, and the step of obtaining the holder ID may include a step of detecting a code object of the cell case or the pouch based on the third sub-process.

[0018] In a cell tracking method according to one embodiment of the present disclosure, the step of obtaining the holder ID may include a step of identifying a can ID corresponding to the cell case by detecting the code object of the cell case.

[0019] A cell tracking method according to one embodiment of the present disclosure may further include a step of matching a second carrier ID corresponding to a second carrier on which the semi-finished cell is loaded and the cell ID based on a second sub-process included in a secondary battery manufacturing process, wherein the step of matching the cell ID and the can ID includes a step of matching the second carrier ID and the can ID, and the second sub-process may be performed before the third sub-process is performed.

[0020] A cell tracking method according to one embodiment of the present disclosure may further include a step of identifying the second carrier ID by detecting a code object of the second carrier based on the third sub-process, and the step of matching the second carrier ID and the can ID may include a step of matching the second carrier ID and the can ID based on a third time at which the second carrier ID is identified based on the third sub-process and a fourth time at which the can ID is identified based on the third sub-process.

[0021] A cell tracking method according to one embodiment of the present disclosure may further include a step of acquiring process data corresponding to the third sub-process targeting the semi-finished cell, and a step of matching the holder ID and the process data.

[0022] In a cell tracking method according to one embodiment of the present disclosure, the third sub-process may be characterized as a process of inserting the semi-finished cell into the cell case or the pouch.

[0023] In a cell tracking method according to one embodiment of the present disclosure, the third sub-process may include at least one of an electrode tab welding process, a cell case forging process, an upper insulator insertion process, a beading process, an electrolyte injection process, a crimping process, and a cleaning process.

[0024] A secondary battery manufacturing system according to one embodiment of the present disclosure includes a plurality of sub-equipment(s) that perform a plurality of sub-processes included in a secondary battery manufacturing process, and at least one controller operatively connected to the plurality of sub-equipment(s), wherein the at least one controller is configured to obtain a cell ID corresponding to a semi-finished cell, obtain a holder ID corresponding to a holder in which the semi-finished cell is placed, and match the cell ID and the holder ID.

[0025] In a secondary battery manufacturing system according to one embodiment of the present disclosure, the cell ID may be a virtual ID generated using data related to the semi-finished cell.

[0026] In a secondary battery manufacturing system according to one embodiment of the present disclosure, the semi-finished cell is a jelly roll having a structure in which a positive electrode, a negative electrode, and a separator are interposed, the plurality of sub-equipment(s) includes a first sub-equipment that performs a first sub-process among the plurality of sub-processes, and the at least one controller may be configured to generate a jelly roll ID corresponding to the jelly roll based on data obtained from the first sub-equipment.

[0027] In a secondary battery manufacturing system according to one embodiment of the present disclosure, the first sub-process is a process of loading the jelly roll placed on a tray into a first carrier, the first sub-equipment may be configured to identify a tray ID by detecting a code object of the tray, and the at least one controller may be configured to generate the jelly roll ID based on the tray ID.

[0028] In a secondary battery manufacturing system according to one embodiment of the present disclosure, the first sub-facility may be configured to load an electrode lot ID and an electrode count of the jelly roll based on identification of the tray ID, and determine a tray coordinate of the jelly roll on the tray, and the at least one controller may be configured to generate the jelly roll ID further based on the electrode lot ID, the electrode count, and the tray coordinate.

[0029] In a secondary battery manufacturing system according to one embodiment of the present disclosure, the holder is a carrier on which the semi-finished cell is placed during the secondary battery manufacturing process, the plurality of sub-equipment(s) includes a second sub-equipment that performs a second sub-process among the plurality of sub-processes, and the second sub-equipment(s) can be configured to obtain a carrier ID corresponding to the carrier.

[0030] In a secondary battery manufacturing system according to one embodiment of the present disclosure, the second sub-process is a process of loading the semi-finished cell onto a second carrier and combining the semi-finished cell loaded onto the second carrier with a lower insulator, and the second sub-equipment may be configured to identify a second carrier ID by detecting a code object of the second carrier, and the at least one controller may be configured to match the cell ID and the second carrier ID.

[0031] In a secondary battery manufacturing system according to one embodiment of the present disclosure, the plurality of sub-facilities may include a first sub-facilities that perform a first sub-process among the plurality of sub-processes, the first sub-facilities may identify a first carrier ID by detecting a code object of a first carrier on which the semi-finished cell is loaded, and the at least one controller may be configured to match the cell ID and the first carrier ID and match the first carrier ID and the second carrier ID, thereby matching the cell ID and the second carrier ID, and the first sub-process may be characterized in that it is performed before the second sub-process is performed.

[0032] In a secondary battery manufacturing system according to one embodiment of the present disclosure, the second sub-facility may identify the first carrier ID by detecting the code object of the first carrier, and the at least one controller may be configured to match the first carrier ID and the second carrier ID based on a first time at which the first carrier ID was identified by the second sub-facility and a second time at which the second carrier ID was identified by the second sub-facility.

[0033] In a secondary battery manufacturing system according to one embodiment of the present disclosure, the at least one controller may be configured to obtain process data corresponding to the second sub-process targeting the semi-finished cell from the second sub-facility, and match the carrier ID and the process data.

[0034] In a secondary battery manufacturing system according to one embodiment of the present disclosure, the holder is a cell case or pouch into which the semi-finished cell is inserted during a third sub-process included in the secondary battery manufacturing process, and the plurality of sub-equipment includes a third sub-equipment that performs the third sub-process, and the third sub-equipment can be configured to identify the holder ID by detecting a code object of the cell case or the pouch.

[0035] In a secondary battery manufacturing system according to one embodiment of the present disclosure, the third sub-facility is configured to identify a can ID corresponding to the cell case by detecting the code object of the cell case, and the can ID may be included in the third cell tracking data.

[0036] In a secondary battery manufacturing system according to one embodiment of the present disclosure, the plurality of sub-facilities may include a second sub-facilities that perform a second sub-process among the plurality of sub-processes, and the at least one controller may be configured to match the cell ID and the can ID by matching the second carrier ID and the cell ID and matching the second carrier ID and the can ID, and the second sub-process may be characterized in that it is performed before the third sub-process is performed.

[0037] In a secondary battery manufacturing system according to one embodiment of the present disclosure, the third sub-facility may identify the second carrier ID by detecting a code object of the second carrier, and the at least one controller may be configured to match the second carrier ID and the can ID based on a third time at which the second carrier ID was identified by the third sub-facility and a fourth time at which the can ID was identified by the third sub-facility.

[0038] In a secondary battery manufacturing system according to one embodiment of the present disclosure, the at least one controller may be configured to obtain process data corresponding to the third sub-process targeting the semi-finished cell from the third sub-facility, and match the holder ID and the process data.

[0039] In a secondary battery manufacturing system according to one embodiment of the present disclosure, the third sub-process may be characterized as a process of inserting the semi-finished cell into the cell case or the pouch.

[0040] In a secondary battery manufacturing system according to one embodiment of the present disclosure, the third sub-process may include at least one of an electrode tab welding process, a cell case forging process, an upper insulator insertion process, a beading process, an electrolyte injection process, a crimping process, and a cleaning process.

[0041] In a secondary battery manufacturing system according to one embodiment of the present disclosure, the at least one controller may include a first controller operatively connected to a first sub-facility group grouped with a first number of sub-facility among the plurality of sub-facility, and a second controller operatively connected to a second sub-facility group grouped with a second number of sub-facility among the plurality of sub-facility.

[0042] According to the cell tracking method according to exemplary embodiments of the present disclosure, the manufacturing traceability of secondary batteries can be improved.

[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 by those skilled in the art to which the exemplary embodiments of the present disclosure pertain from the following description. In other words, unintended effects resulting from implementing the exemplary embodiments of the present disclosure can also be derived by those skilled in the art from the exemplary embodiments of the present disclosure.

[0044] FIG. 1 is a flowchart illustrating a method for manufacturing a secondary battery according to exemplary embodiments.

[0045] FIG. 2 is a block diagram illustrating a secondary battery manufacturing system according to exemplary embodiments.

[0046] FIGS. 3 to 12 are drawings for explaining a method for manufacturing a secondary battery according to exemplary embodiments.

[0047] FIG. 13 is a diagram illustrating a method for managing data in a secondary battery manufacturing system according to exemplary embodiments.

[0048] Figure 14 is a diagram showing the roll map data shown in Figure 13.

[0049] FIG. 15 is a flowchart illustrating a method for managing cell tracking data according to exemplary embodiments.

[0050] FIG. 16 is a diagram illustrating a method for managing cell tracking data according to exemplary embodiments.

[0051] FIG. 17 is a diagram illustrating a method for managing cell tracking data according to exemplary embodiments.

[0052] FIG. 18 is a flowchart illustrating a method for managing cell tracking data according to exemplary embodiments.

[0053] FIG. 19 is a diagram illustrating a method for managing cell tracking data according to exemplary embodiments.

[0054] FIG. 20 is a diagram illustrating a method for managing cell tracking data according to exemplary embodiments.

[0055] FIG. 21 is a flowchart illustrating a method for managing cell tracking data according to exemplary embodiments.

[0056] FIG. 22 is a diagram illustrating a method for managing cell tracking data according to exemplary embodiments.

[0057] FIG. 23 is a flowchart illustrating a method for managing cell tracking data according to exemplary embodiments.

[0058] FIG. 24 is a flowchart illustrating a method for managing cell tracking data according to exemplary embodiments.

[0059] FIG. 25 is a flowchart illustrating a method for managing cell tracking data according to exemplary embodiments.

[0060] FIG. 26 is a flowchart illustrating a method for managing cell tracking data according to exemplary embodiments.

[0061] FIG. 27 is a flowchart illustrating a method for managing cell tracking data according to exemplary embodiments.

[0062] FIG. 28 is a flowchart illustrating a method for managing cell tracking data according to exemplary embodiments.

[0063] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the attached drawings. Prior to this, it should be noted that the terms and words used in this disclosure should not be construed as limited to their conventional or dictionary meanings. Based on the principle that the inventor can appropriately define the concepts of terms to best explain his or her invention, they should be construed as meanings and concepts consistent with the technical spirit of the present disclosure.

[0064] Therefore, it should be understood that the embodiments described in the present disclosure and the configurations illustrated in the drawings are merely the most preferred embodiments of the present disclosure and do not represent all of the technical ideas of the present disclosure, and that there may be various equivalents and modified examples that can replace them at the time of filing the present application.

[0065] In addition, when describing the present disclosure, if it is determined that a specific description of a related public notice configuration or function may obscure the gist of the present disclosure, the detailed description is omitted.

[0066] Since the embodiments of the present disclosure are provided to more fully explain the present disclosure to those skilled in the art, the shapes and sizes of components in the drawings may be exaggerated, omitted, or schematically illustrated for clearer explanation. Accordingly, the sizes and proportions of each component do not fully reflect the actual sizes or proportions.

[0067] (Embodiments 1 and 2)

[0068] FIG. 1 is a flowchart illustrating a method for manufacturing a secondary battery according to exemplary embodiments.

[0069] FIG. 2 is a block diagram illustrating a secondary battery manufacturing system (1000) according to exemplary embodiments.

[0070] FIGS. 3 to 12 are drawings for explaining a method for manufacturing a secondary battery according to exemplary embodiments.

[0071] Referring to FIGS. 1 and 2 , a secondary battery manufacturing system (1000) may be configured to perform a secondary battery manufacturing process. Here, the secondary battery manufacturing process may include a secondary battery electrode manufacturing process, an assembly process, and an activation process. According to one embodiment, the secondary battery manufacturing system (1000) may be configured to perform a secondary battery assembly process. For example, the secondary battery manufacturing system (1000) may be configured to perform an assembly process of a can-type battery (e.g., a square battery or a cylindrical battery) or a pouch-type battery. A secondary battery manufacturing system (1000) may include a plurality of sub-facilities (110a, 110b, 110c, 110d, 110e, 110f, 110g, 110h, 110i, 110j, 110k, 110l, 110m, 110n), controllers (120a, 120b, 120c, 120d), a processor (130), and a server (200). The number of the plurality of sub-facilities (110a, 110b, 110c, 110d, 110e, 110f, 110g, 110h, 110i, 110j, 110k, 110l, 110m, 110n) and controllers (120a, 120b, 120c, 120d) illustrated in FIG. 2 is for illustrative purposes only, and the technical idea of ​​the present disclosure is not limited thereto.

[0072] The secondary battery manufacturing process may include a plurality of sub-processes, and each of the plurality of sub-facilities (110a, 110b, 110c, 110d, 110e, 110f, 110g, 110h, 110i, 110j, 110k, 110l, 110m, 110n) may be configured to perform one of the sub-processes (or one or more sub-processes).

[0073] Controllers (120a, 120b, 120c, 120d) may be configured to process cell tracking data obtained from a plurality of sub-facilities (110a, 110b, 110c, 110d, 110e, 110f, 110g, 110h, 110i, 110j, 110k, 110l, 110m, 110n). More specifically, the controller (120a) may be configured to process cell tracking data (CTDa, CTDb, CTDc, CTDd) acquired from controllers (113a, 113b, 113c, 113d) included in each of the sub-facilities (110a, 110b, 110c, 110d), the controller (120b) may be configured to process cell tracking data (CTDe, CTDf, CTDg) acquired from controllers (113e, 113f, 113g) included in each of the sub-facilities (110e, 110f, 110g), and the controller (120c) may be configured to process cell tracking data (CTDh, CTDi, CTDg) acquired from controllers (113h, 113i, 113j) included in each of the sub-facilities (110h, 110i, 110j). The controller (120d) may be configured to process cell tracking data (CTDm, CTDn) obtained from controllers (113m, 113n) included in each of the sub-facilities (110m, 110n).

[0074] The number of controllers (120a, 120b, 120c, 120d) shown in FIG. 2 and the allocation of the controllers (120a, 120b, 120c, 120d) to the plurality of sub-facilities (110a, 110b, 110c, 110d, 110e, 110f, 110g, 110h, 110i, 110j, 110k, 110l, 110m, 110n) are for illustrative purposes, and the technical idea of ​​the present disclosure is not limited thereto. For example, the secondary battery manufacturing system (1000) may include one controller that processes cell tracking data obtained from a plurality of sub-facilities (110a, 110b, 110c, 110d, 110e, 110f, 110g, 110h, 110i, 110j, 110k, 110l, 110m, 110n). In this case, the controller may be configured to independently process cell tracking data obtained from each of the plurality of sub-facilities (110a, 110b, 110c, 110d, 110e, 110f, 110g, 110h, 110i, 110j, 110k, 110l, 110m, 110n).

[0075] The controller (at least one of 120a, 120b, 120c, and 120d) may be configured to obtain a cell ID corresponding to a semi-finished product cell based on cell tracking data (CTDa, CTDb, CTDc, CTDd, CTDe, CTDf, CTDg, CTDh, CTDi, CTDj, CTDm, CTDn) obtained from a plurality of sub-facilities (110a, 110b, 110c, 110d, 110e, 110f, 110g, 110h, 110i, 110j, 110k, 110l, 110m, 110n). According to one embodiment, the cell ID may be a virtual ID generated using data related to the semi-finished product cell. For example, the controller (at least one of 120a, 120b, 120c, and 120d) can generate a virtual ID (e.g., jelly roll ID) of a semi-finished cell based on at least one of a tray ID, tray coordinates, electrode lot ID, and electrode count of a tray in which a semi-finished cell (e.g., jelly roll) is loaded. According to one embodiment, the cell ID may be a representative ID for tracking a semi-finished cell in at least one sub-process prior to a sub-process for obtaining a holder ID, which will be described later. For example, when a carrier ID corresponding to a holder ID is obtained based on the P40 process of FIG. 1, the cell ID may be a jelly roll ID generated based on the P30 process of FIG. 1. As another example, when a can ID corresponding to a holder ID is obtained based on the P50 process of FIG. 1, the cell ID may be a jelly roll ID generated based on the P30 process of FIG. 1 or a carrier ID obtained based on the P40 process of FIG. 1.

[0076] Here, the semi-finished cell may include various types of semi-finished cells manufactured during the manufacturing process by the secondary battery manufacturing system (1000). For example, in the case of the manufacturing process of a can-type battery, the semi-finished cell may be configured as a jelly roll, which is a structure in which a cathode, an anode, and a separator are interposed, or a can-type battery cell in the form of a jelly roll inserted into a cell case. As another example, in the case of the manufacturing process of a pouch-type battery, the semi-finished cell may be configured as a unit cell composed of at least one polar electrode (e.g., a cathode and / or anode) and a separator, a stacked electrode assembly formed by stacking a plurality of unit cells, a folding electrode assembly formed by folding a plurality of unit cells, or a pouch-type battery cell in the form of an electrode assembly inserted into a pouch. At this time, the unit cell may be composed of a mono cell in which the positive and negative electrodes are positioned on the outermost sides, a bi-cell in which electrodes of the same polarity are positioned on the outermost sides, or a half cell in which the positive or negative electrode is positioned between the separators on the outermost sides.

[0077] The controller (at least one of 120a, 120b, 120c, and 120d) may be configured to obtain a holder ID corresponding to a holder in which a semi-finished product cell is placed based on cell tracking data (CTDa, CTDb, CTDc, CTDd, CTDe, CTDf, CTDg, CTDh, CTDi, CTDj, CTDm, CTDn) obtained from a plurality of sub-facilities (110a, 110b, 110c, 110d, 110e, 110f, 110g, 110h, 110i, 110j, 110k, 110l, 110m, 110n).

[0078] Here, the holder may include various types of holders in which semi-finished cells are placed during the manufacturing process by the secondary battery manufacturing system (1000). For example, in the case of a manufacturing process of a can-type battery, the holder may be configured as a carrier (115a or 115b) in which a jelly roll is placed or a cell case in which a jelly roll is inserted. The carrier (115a or 115b) may be configured to hold a jelly roll in a specific sub-process (P30, P40, P50) targeting the jelly roll. The cell case may be a configuration of a cylindrical battery cell and may be a configuration in which a jelly roll is inserted in a specific sub-process (P50). As another example, in the case of a manufacturing process of a pouch-type battery, the holder may be configured as a magazine in which unit cells are stacked or a pouch in which unit cells are inserted. The magazine may be configured to hold a plurality of unit cells to be stacked or folded by stacking them before a stacking or folding process for forming an electrode assembly by stacking or folding a plurality of unit cells after a notching process for forming electrode tabs on the electrode sheets of unit cells during the assembling process of a pouch-type battery and a lamination process for bonding the unit cells to a separator. The pouch may be a configuration in which a stacked cell or a folded cell is inserted during a packaging process, and is one configuration of a pouch-type battery cell.

[0079] The controller (at least one of 120a, 120b, 120c, and 120d) can obtain a cell ID and / or a holder ID using various data included in the cell tracking data (CTDa, CTDb, CTDc, CTDd, CTDe, CTDf, CTDg, CTDh, CTDi, CTDj, CTDm, CTDn).

[0080] According to one embodiment, the cell tracking data (CTDa, CTDb, CTDc, CTDd, CTDe, CTDf, CTDg, CTDh, CTDi, CTDj, CTDm, CTDn) may include data for obtaining a cell ID and / or a holder ID. The cell tracking data (CTDa, CTDb, CTDc, CTDd, CTDe, CTDf, CTDg, CTDh, CTDi, CTDj, CTDm, CTDn) may include identification data identified by detecting a code object associated with a semi-finished cell and / or a holder. For example, the identification data may include at least one of a tray ID identified through a code object on a tray on which a jelly roll is placed, a carrier ID identified through a code object on a carrier on which a jelly roll is loaded, and a can ID identified through a code object on a cell case into which a jelly roll is inserted. Here, the code object is a code image including information about the ID of a target detected and identified by a code reader (e.g., matrix reader (111a, 111b, 111c, 111d, 111e, 111f, 111g, 111h, 111i, 111j, 111m, 111n)), and may be implemented as at least one of a data matrix, a QR code, and a barcode. Hereinafter, the technical idea of ​​the present disclosure will be described with a focus on an embodiment in which a data matrix is ​​used as a code object. However, this is for illustrative purposes and does not limit the technical idea of ​​the present disclosure. Additionally, the identification data may further include electrode lot ID and electrode count loaded by multiple sub-facilities (110a, 110b, 110c, 110d, 110e, 110f, 110g, 110h, 110i, 110j, 110k, 110l, 110m, 110n) triggered by ID identification.

[0081] In one embodiment, cell tracking data (CTDa, CTDb, CTDc, CTDd, CTDe, CTDf, CTDg, CTDh, CTDi, CTDj, CTDm, CTDn) may include time data for the time at which the identification data was identified. This time data may be used for matching between multiple IDs.

[0082] The controller (at least one of 120a, 120b, 120c, and 120d) may be configured to match the acquired cell ID and holder ID.

[0083] According to one embodiment, the controller (at least one of 120a, 120b, 120c, and 120d) may be configured to match a jelly roll ID corresponding to a jelly roll and a carrier ID corresponding to a carrier on which the jelly roll is placed during a secondary battery manufacturing process. For example, the controller (at least one of 120a, 120b, 120c, and 120d) may be configured to match the jelly roll ID and the carrier ID based on cell tracking data (CTDa) obtained from a sub-equipment (110a) that performs a sub-process of loading a jelly roll placed on a tray into a carrier (115a). Here, the cell tracking data (CTDa) may include time data for a time at which the jelly roll ID is generated and a time at which the carrier ID is identified. The controller (at least one of 120a, 120b, 120c, and 120d) may be configured to match the jelly roll ID and the carrier ID based on a time difference between the time the jelly roll ID is generated and the time the carrier ID is identified.

[0084] According to one embodiment, the controller (at least one of 120a, 120b, 120c, and 120d) may be configured to match a plurality of carrier IDs corresponding to each of a plurality of carriers onto which the same jelly roll is loaded during a secondary battery manufacturing process. For example, the controller (at least one of 120a, 120b, 120c, and 120d) may be configured to match a first carrier ID corresponding to the carrier (115a) and a second carrier ID corresponding to the carrier (115b) based on cell tracking data (CTDb) obtained from a sub-equipment (110b) that performs a sub-process of unloading a jelly roll loaded onto a carrier (115a), loading it onto a carrier (115b), and combining the jelly roll loaded onto the carrier (115b) with a lower insulator. Here, the cell tracking data (CTDb) may include time data for a first time at which the first carrier ID is identified by the sub-facility (110b) and a second time at which the second carrier ID is identified. The controller (at least one of 120a, 120b, 120c, and 120d) may be configured to match the first carrier ID and the second carrier ID based on a time difference between the first time and the second time. A buffer of the controller (at least one of 120a, 120b, 120c, and 120d) may store a match between a jelly roll ID based on the cell tracking data (CTDa) and a carrier ID corresponding to the carrier (115a). The controller (at least one of 120a, 120b, 120c, and 120d) may be configured to match a jelly roll ID with a carrier ID corresponding to a carrier (115b) based on a match between a first carrier ID and a second carrier ID based on matching and cell tracking data (CTDb) stored in a buffer.

[0085] The controller (at least one of 120a, 120b, 120c, and 120d) may be configured to obtain a can ID corresponding to a cell case into which a jelly roll is inserted based on cell tracking data (CTDa, CTDb, CTDc, CTDd, CTDe, CTDf, CTDg, CTDh, CTDi, CTDj, CTDm, CTDn).

[0086] According to one embodiment, the controller (at least one of 120a, 120b, 120c, and 120d) may be configured to match a jelly roll ID corresponding to a jelly roll and a can ID corresponding to a cell case into which the jelly roll is inserted during a secondary battery manufacturing process. For example, the controller (at least one of 120a, 120b, 120c, and 120d) may be configured to match a carrier ID and a can ID corresponding to a carrier (115b) based on cell tracking data (CTDc) obtained from a sub-equipment (110c) that performs a sub-process of inserting a jelly roll loaded on a carrier (115b) into a cell case. Here, the cell tracking data (CTDc) may include time data for a third time at which the carrier ID was identified by the sub-equipment (110c) and a fourth time at which the can ID was identified. The controller (at least one of 120a, 120b, 120c, and 120d) may be configured to match a carrier ID and a can ID based on a time difference between a third time and a fourth time. A buffer of the controller (at least one of 120a, 120b, 120c, and 120d) may store a matching between a jelly roll ID based on cell tracking data (CTDa, CTDb) and a carrier ID corresponding to a carrier (115b). The controller (at least one of 120a, 120b, 120c, and 120d) may be configured to match a jelly roll ID to a can ID based on the matching stored in the buffer and the matching between the carrier ID and the can ID based on the cell tracking data (CTDc).

[0087] According to one embodiment, the controller (at least one of 120a, 120b, 120c, and 120d) may be configured to map an ID obtained in each sub-process with process data and / or inspection data obtained in the corresponding sub-process. Here, the process data may include information related to equipment that performed the corresponding process (e.g., motor load value, RPM, etc.) and the time at which the corresponding process was performed. The inspection data may include measurement information measuring the dimensions of the semi-finished product to be inspected by scanning, an image obtained by photographing the semi-finished product to be inspected (e.g., X-RAY image, vision image, etc.), and status information of the semi-finished product inspected based on at least one of the measurement information and the image. Mapping may mean storing the ID and the data in a linked manner so that the data that serves as a value can be referenced through the ID that serves as a key. That is, by mapping the ID and the process data and / or the inspection data, the process data and / or the inspection data can be referenced through the ID.

[0088] The manufacturing traceability of the secondary battery can be improved by having the controller (at least one of 120a, 120b, 120c, and 120d) track the cell ID, process data, and inspection data of the semi-finished cell that goes through each sub-process of the secondary battery manufacturing system (1000) through the operations described above.

[0089] Hereinafter, a method for matching at least two of a jelly roll ID, a carrier ID, a can ID, and a lot ID in each of a plurality of sub-processes included in a can-type battery manufacturing process by a secondary battery manufacturing system (1000) and a method for mapping the ID and process data will be specifically described, taking as an example a case where the secondary battery manufacturing process is a can-type battery manufacturing process. However, this is merely an example for convenience of explanation, and the cell tracking method of the present disclosure is not limited to a can-type battery manufacturing process and can also be applied to a pouch-type battery manufacturing process.

[0090] Referring to FIGS. 1 to 3, at P10, a jelly roll (JR) may be provided. Providing the jelly roll (JR) may include winding a positive electrode sheet (PS), a negative electrode sheet (NS), and separators (SP), and cutting the positive electrode sheet (PS), the negative electrode sheet (NS), and the separators (SP) so that the winding structure is separated. The positive electrode sheet (PS) may be unwound from the positive electrode roll by an unwinder (11), the negative electrode sheet (NS) may be unwound from the positive electrode roll by an unwinder (13), and the separator sheet (SS) may be unwound from the separator rolls by unwinders (15, 17). The positive electrode sheet (PS) may include a positive electrode current collector and a positive electrode active material. The negative electrode sheet (NS) may include a negative electrode current collector and a negative electrode active material.

[0091] The thickness of the positive electrode current collector may range from about 3 μm to about 500 μm. The positive electrode current collector may not cause chemical changes in the secondary battery to be ultimately manufactured and may have high conductivity. The positive electrode current collector may include, for example, stainless steel, aluminum, nickel, titanium, calcined carbon, and aluminum. The positive electrode current collector may also include stainless steel surface-treated with carbon, nickel, titanium, silver, etc. The surface of the positive electrode current collector may include a micro-roughened structure to increase the adhesion of the active material. The positive electrode current collector may have a shape such as a film, a sheet, a foil, a net, a porous material, a foam, or a non-woven fabric.

[0092] A cathode active material is a substance capable of causing an electrochemical reaction. The cathode active material may be a lithium transition metal oxide. The cathode active material is, for example, a layered compound such as lithium cobalt oxide (LiCoO2) and lithium nickel oxide (LiNiO2) substituted with one or more transition metals, a lithium manganese oxide substituted with one or more transition metals, a lithium nickel-based oxide represented by the chemical formula LiNi1-yMyO2 (wherein, M is any one of Co, Mn, Al, Cu, Fe, Mg, B, Cr, Zn, and Ga, and 0.01≤y≤0.7), Li1+zNi1 / 3Co1 / 3Mn1 / 3O2, Li1+zNi0.4Mn0.4Co0.2O2, such as Li1+zNibMncCo1-(b+c+d)MdO(2-e)Ae (wherein, -0.5≤z≤0.5, 0.1≤b≤0.8, and 0.1≤c≤0.8, A lithium nickel cobalt manganese composite oxide represented by the chemical formula Li1+xM1-yM'yPO4-zXz (wherein, M is a transition metal, more specifically, any one of Fe, Mn, Co, and Ni, M' is any one of Al, Mg, and Ti, X is any one of F, S, and N, -0.5≤x≤+0.5, 0≤y≤0.5, and 0≤z≤0.1), wherein 0≤d≤0.2, 0≤e≤0.2, b+c+d<1, M is any one of Al, Mg, Cr, Ti, Si, and Y, and A is any one of F, P, and Cl), and an olivine-based lithium metal phosphate represented by the chemical formula Li1+xM1-yM'yPO4-zXz (wherein, M is a transition metal, more specifically, any one of Fe, Mn, Co, and Ni, M' is any one of Al, Mg, and Ti, X is any one of F, S, and N, -0.5≤x≤+0.5, 0≤y≤0.5, and 0≤z≤0.1).

[0093] The thickness of the negative electrode current collector may be in the range of about 3 μm to about 500 μm. The negative electrode current collector may not cause chemical changes in the secondary battery ultimately manufactured and may have high conductivity. The negative electrode current collector may include copper, stainless steel, aluminum, nickel, titanium, sintered carbon, and an aluminum-cadmium alloy. The negative electrode current collector may also include stainless steel surface-treated with carbon, nickel, titanium, silver, etc. The surface of the negative electrode current collector may include a micro-roughened structure to increase the adhesion of the active material. The negative electrode current collector may have a shape such as a film, a sheet, a foil, a net, a porous material, a foam, or a non-woven fabric.

[0094] The negative electrode active material may include carbon such as non-graphitizable carbon, graphitic carbon, etc. The negative electrode active material may include, for example, LixFe2O3(0≤x≤1), LixWO2(0≤x≤1), SnxMe1-xMe'yOz (wherein Me is any one of Mn, Fe, Pb, and Ge, and Me' is any one of Al, B, P, Si, elements of group 1, 2, and 3 of the periodic table, and halogens, and 0 <x≤1 이고, 1≤y≤3 이며, 1≤z≤8) 등의 금속 복합 산화물을 포함할 수 있다. 음극 활물질은, 예컨대, 리튬 금속, 리튬 합금, 규소계 합금, 주석계 합금을 포함할 수 있다. 음극 활물질은, 예컨대, SnO, SnO2, PbO, PbO2, Pb2O3, Pb3O4, Sb2O3, Sb2O4, Sb2O5, GeO, GeO2, Bi2O3, Bi2O4, Bi2O5 등의 금속 산화물을 포함할 수 있다. 음극 활물질은, 예컨대, 폴리아세틸렌 등의 도전성 고분자, Li-Co-Ni 계 재료 등을 포함할 수 있다.

[0095] A positive electrode sheet (PS), a negative electrode sheet (NS), and separators (SP) can be wound on the surface of a mandrel. The positive electrode sheet (PS), the negative electrode sheet (NS), and the separators (SP) can be wound by a rewinder (19). A jelly roll (JR) can be provided by winding the positive electrode sheet (PS), the negative electrode sheet (NS), and the separators (SP) on the mandrel, cutting and separating them, and then welding a positive electrode tab (PT) and a negative electrode tab (NT) to the separated winding structure. The positive electrode tab (PT) can be welded to the uncoated portion of the positive electrode, and the negative electrode tab (NT) can be welded to the uncoated portion of the negative electrode. The positive electrode tab (PT) and the negative electrode tab (NT) can be welded by, for example, but not limited to, ultrasonic welding.

[0096] The processor (130) and / or the server (200) may be configured to obtain first process data and first inspection data corresponding to the P10 process for manufacturing jelly rolls (JR).

[0097] According to one embodiment, the first process data may include at least one of information related to the equipment that performed the P10 process for manufacturing the jelly roll (JR) (e.g., tension information of the positive electrode sheet (PS), negative electrode sheet (NS), and separators (SP) and winding information of the rewinder (19)) and the time at which the P10 process was performed.

[0098] According to one embodiment, the first inspection data may include measurement information measuring the dimensions of elements constituting the jelly roll (JR) by scanning, images obtained by capturing the elements constituting the jelly roll (JR) by a vision machine, and status information of the inspected jelly roll (JR) based on at least one of the measurement information and the images. Here, the measurement information may include dimensions (e.g., thickness, width) of the positive electrode sheet (PS), the negative electrode sheet (NS), and the separators (SP), dimensions (e.g., thickness, width) of the positive electrode tab (PT), the negative electrode tab (NT), a loading amount of a coating material on the electrode sheet (PS, NS), a dimension (e.g., thickness, width) of an insulating material provided on the coating material, a dimension (e.g., thickness, width) of an overlapping section between the coating material and the insulating material, and information on mismatch between coating part lanes on the upper surface of the electrode sheet (PS, NS) and coating part lanes on the lower surface of the electrode sheet (PS, NS). The image may include an appearance image of a positive electrode sheet (PS), a negative electrode sheet (NS), and separators (SP) obtained by capturing images through a vision machine, and an appearance image of a positive electrode tab (PT), and a negative electrode tab (NT). The status information may include a judgment on the quality of the jelly roll (JR) based on at least one of the measurement information and the image. For example, the status information may include at least one of information on whether there is a defect based on the dimensions of elements constituting the jelly roll (JR) (e.g., a positive electrode sheet (PS), a negative electrode sheet (NS), separators (SP), a positive electrode tab (PT), a negative electrode tab (NT), a coating material, an insulating material) and information on a type of defect (e.g., a pinhole defect, a crater defect, a line defect, a crack defect, a side ring defect, an island defect, a fold defect, a wrinkle defect, a dent defect, a stamping defect, etc.) determined based on the appearance images of the elements constituting the jelly roll (JR).

[0099] Next, referring to FIGS. 1, 2, and 4, at P20, jelly rolls (JR) can be loaded onto the tray (20). The jelly rolls (JR) can be arranged in rows and columns on the tray (20). Accordingly, the jelly rolls (JR) can be arranged in a matrix on the tray (20).

[0100] Next, referring to FIGS. 1, 2, 4 and 5, at P30, the jelly roll (JR) can be unloaded from the tray (20) and loaded onto the carrier (115a). The sub-equipment (110a) may include a pick and place machine configured to move the jelly roll (JR) on the tray (20) to the carrier (115a).

[0101] The sub-facility (110a) may include data matrix readers (111a), a controller (113a), and a carrier (115a) for the data matrix (DM1) of the tray (20). The controller (113a) may be configured to control the operation of the photographing and pick-and-place machine of the data matrix reader (111a).

[0102] One of the data matrix readers (111a) may be configured to detect the data matrix (DM1) of the tray (20). If the data matrix (DM1) is successfully read, the data matrix reader (111a) may be configured to transmit a signal indicating a tray ID to the controller (113a). The tray ID may include a plurality of symbols for distinguishing and / or identifying the tray (20). The tray ID may be used to distinguish the tray (20). Here, the symbol may collectively refer to a sign, character, or indication that represents a certain meaning.

[0103] Reading out the data matrix (DM1) may include capturing an image including the data matrix (DM1) and obtaining information included in the data matrix (DM1) from the image. Additionally, reading out the data matrix (DM1) may further include identifying a tray ID based on the information included in the data matrix (DM1).

[0104] The controller (113a) may be configured to load the positive lot ID and the positive count from a server, such as a Manufacturing Execution System (MES), based on the identification of the tray ID. As another example, the controller (113a) may be configured to load the negative lot ID and the negative count from a server, such as an MES, based on the identification of the tray ID. Hereinafter, the technical idea of ​​the present disclosure will be described with reference to an embodiment in which the positive lot ID is used to generate a jelly roll ID. However, this is for illustrative purposes only and does not limit the technical idea of ​​the present disclosure in any sense. Here, the positive count and the negative count represent the order in which the jelly rolls were manufactured in the winder equipment. The controller (113a) may be configured to determine the coordinates of the jelly roll (JR) on the tray based on the operation of the pick-and-place machine.

[0105] In one embodiment, the controller (113a) may be configured to generate (or assign) a jelly roll ID based on a positive electrode lot ID, a positive electrode count, a tray ID, and tray coordinates. In another embodiment, the controller (113a) may transmit cell tracking data (CTDa) including a positive electrode lot ID, a positive electrode count, a tray ID, and tray coordinates to the controller (120a). The controller (120a) may be configured to generate (or assign) a jelly roll ID based on the transmitted cell tracking data (CTDa). Here, the jelly roll ID may correspond to a virtual ID generated based on required data, rather than being identified by data matrix detection.

[0106] Due to the nature of its semi-finished product, a jelly roll (JR) may not include a physical data matrix. Accordingly, the jelly roll ID assigned during processing at the jelly roll (JR) level may be generated and managed on the equipment network or factory automation network, and may also be referred to as a virtual ID. According to exemplary embodiments, the jelly roll ID may include a positive lot ID, a positive count, a tray ID, and tray coordinates.

[0107] Here, jelly rolls (JR) are fed into the sub-equipment (110a) according to the arrangement of jelly rolls (JR) on the tray (20), and the symbol of the jelly roll ID indicating the tray coordinates of the jelly roll ID may indicate the order of feeding the jelly rolls (JR) into the sub-equipment (110a). Since the sub-equipment (110a) is the first stage of the assembly process, feeding of jelly rolls (JR) into the sub-equipment (110a) may also be referred to as feeding of jelly rolls (JR) into the assembly process.

[0108] The controller (120a) may transmit the jelly roll ID of the jelly roll (JR) to the processor (130) and / or the server (200). According to one embodiment, the processor (130) and / or the server (200) may be configured to map the jelly roll ID obtained from the controller (120a) with the first process data and the first inspection data of the jelly roll (JR) obtained in the P10 process. For example, the processor (130) and / or the server (200) may be configured to map the electrode lot ID of the jelly roll (JR) with the first process data and the first inspection data, and to map the jelly roll ID with the first process data and the first inspection data using the electrode lot ID used to generate the jelly roll ID. Another one of the data matrix readers (111a) may be configured to detect the data matrix (DM2a) of the carrier (115a). Accordingly, the carrier ID of the carrier (115a) may be configured to be identified from the data matrix (DM2a) of the carrier (115a). The carrier ID of the carrier (115a) may include a plurality of symbols for distinguishing and / or identifying the carrier (115a). The carrier ID may be used to distinguish the carrier (115a).

[0109] When the pick and place machine picks up a jelly roll (JR) on a tray (20) and places the jelly roll (JR) on a carrier (115a), the data matrix (DM1) of the tray (20) and the data matrix (DM2a) of the carrier (115a) can be detected by the data matrix readers (111a) of the sub-equipment (110a). The controller (113a) can be configured to transmit the jelly roll ID to the controller (120a). The data matrix reader (111a) can be configured to transmit the carrier ID of the carrier (115a) to the controller (120a).

[0110] The controller (120a) may be configured to collect cell tracking data (CTDa) of the sub-facility (110a). The cell tracking data (CTDa) may include data for obtaining a jelly roll ID of a jelly roll (JR). For example, the cell tracking data (CTDa) may include a jelly roll ID generated by the sub-facility (110a). In this case, the controller (120a) may obtain the jelly roll ID by simply identifying the cell tracking data (CTDa). As another example, the cell tracking data (CTDa) may include an anode lot ID, an anode count, a tray ID, and a tray coordinate for generating a jelly roll ID. In this case, the controller (120a) may generate a jelly roll ID of a jelly roll (JR) based on the anode lot ID, the anode count, the tray ID, and the tray coordinate included in the cell tracking data (CTDa). The cell tracking data (CTDa) of the sub-facility (110a) may further include the carrier ID of the carrier (115a).

[0111] The cell tracking data (CTDa) may further include time data regarding the time at which the jelly roll ID was generated and the time at which the carrier ID was identified from the data matrix (DM1a) of the carrier (115a). In addition, the cell tracking data (CTDa) may further include the time at which the carrier ID was matched to the jelly roll ID.

[0112] The controller (120a) may be configured to match the carrier ID of the carrier (115a) with the jelly roll ID of the jelly roll (JR). According to one embodiment, the controller (120a) may be configured to match the jelly roll ID and the carrier ID by comparing the time at which the jelly roll ID is generated and the time at which the carrier ID is identified based on cell tracking data (CTDa). For example, if the time difference between the time at which the jelly roll ID is generated and the time at which the carrier ID is identified is within a preset threshold time value, the generated jelly roll ID and the identified carrier ID may be matched with each other. On the other hand, if the time difference between the time at which the jelly roll ID is generated and the time at which the carrier ID is identified exceeds the preset threshold time value, the generated jelly roll ID may be matched with another carrier ID whose time difference is within the threshold time value.

[0113] If the data matrix (DM1) fails to be read, the data matrix reader (111a) may be configured to generate an unrecognized jelly roll ID. Accordingly, the cell tracking data (CTDa) may include the unrecognized jelly roll ID. The unrecognized jelly roll ID may be matched with the carrier ID of the carrier (115a).

[0114] An unrecognized jelly roll ID may have a different generation rule (or format) from a jelly roll ID, and an unrecognized jelly roll ID may be easily distinguished from a jelly roll ID. For example, the length of an unrecognized jelly roll ID may be different from the length of a jelly roll ID.

[0115] Similarly, if the data matrix (DM2a) fails to be read, an unrecognized carrier ID may be matched with a jelly roll ID. The unrecognized carrier ID may have a different generation rule (or format) than the carrier ID, and the unrecognized carrier ID may be easily distinguished from the carrier ID. For example, the length of the unrecognized carrier ID may be different from the length of the carrier ID.

[0116] Next, referring to FIGS. 1, 2, 5, and 6, at P40, the lower insulator and the jelly roll (JR) can be combined. The lower insulator can prevent unwanted short circuits between the cell case (CC, see FIG. 6) described below and the jelly roll (JR). The lower insulator and the jelly roll (JR) can be combined by a sub-facility (110b).

[0117] The sub-facility (110b) may include data matrix readers (111b) and a controller (113b). The controller (113b) may be configured to control the operation of the equipment elements for photographing the data matrix readers (111b) and combining the lower insulator with the jelly roll (JR).

[0118] The carrier (115a) of the sub-facility (110a) may be configured to transport the jelly roll (JR) to the sub-facility (110b). The jelly roll (JR) may be moved from the carrier (115a) of the sub-facility (110a) to the carrier (115b) of the sub-facility (110b), for example, by a pick-and-place machine.

[0119] The data matrix readers (111b) may be configured to detect data matrices (DM2a, DM2b) of the carriers (115a, 115b). One of the data matrix readers (111b) may be configured to detect the data matrix (DM2a) of the carrier (115a), and one of the data matrix readers (111b) may be configured to detect the data matrix (DM2b) of the carrier (115b). If the reading of the data matrices (DM2a, DM2b) is successful, the data matrix readers (111b) may be configured to transmit a signal indicating the carrier IDs of the carriers (115a, 115b) to the controller (120a). The controller (120a) may identify the carrier IDs of the carriers (115a, 115b) based on the transmitted signal. The carrier ID of the carrier (115b) may include a plurality of symbols for distinguishing and / or identifying the carrier (115b). The carrier ID may be used to distinguish the carrier (115b).

[0120] The controller (120a) may be configured to collect cell tracking data (CTDb) of the sub-facility (110b). The cell tracking data (CTDb) may include carrier IDs of the carriers (115a, 115b). The cell tracking data (CTDb) may further include time data regarding the time at which the carrier ID of the carrier (115a) was identified by the sub-facility (110b) and the time at which the carrier ID of the carrier (115b) was identified. In addition, the cell tracking data (CTDb) may further include the time at which the carrier IDs of the carriers (115a, 115b) were matched with each other. If the reading of any one of the data matrices (DM2a, DM2b) fails, the cell tracking data (CTDb) may include an unrecognized jelly roll ID.

[0121] The controller (120a) may be configured to match the carrier ID of the carrier (115a) with the carrier ID of the carrier (115b). According to one embodiment, the controller (120a) may be configured to match the carrier IDs of the carriers (115a, 115b) with each other by comparing the identification times of the carrier IDs based on the cell tracking data (CTDb). For example, if the time difference between the identification times of each of the carrier IDs is within a preset threshold time value, the identified carrier IDs may be matched with each other. On the other hand, if the time difference between the identification times of each of the carrier IDs exceeds the preset threshold time value, each of the identified carrier IDs may be matched with another carrier ID whose time difference is within the threshold time value. The buffer of the controller (120a) stores a matching between the carrier ID of the carrier (115a) and the jelly roll ID of the jelly roll (JR), and the controller (120a) can be configured to match the jelly roll ID of the jelly roll (JR) to the carrier ID of the carrier (115b) through the carrier ID of the carrier (115a).

[0122] The controller (120a) can obtain second process data and second inspection data corresponding to the P40 process targeting jelly rolls (JR) from the sub-facility (110b).

[0123] According to one embodiment, the second process data may include at least one of information related to equipment that performed the P40 process on the jelly roll (JR), the time at which the P40 process was performed, and information related to a lower insulator combined with the jelly roll (JR).

[0124] According to one embodiment, the second inspection data may include measurement information measuring the dimensions (e.g., thickness, width) of the lower insulator coupled to the jelly roll (JR) by scanning, an image obtained by photographing the jelly roll (JR) and the lower insulator using a vision machine, and status information of the jelly roll (JR) and the lower insulator inspected based on at least one of the measurement information and the image. Here, the status information may include at least one of information on whether the lower insulator is defective based on the dimensions of the lower insulator and information on the type of defect (e.g., a lower stamping defect of the jelly roll (JR), an in-tab defect of an electrode of the jelly roll (JR), an out-tab defect, etc.) determined based on the appearance images of the jelly roll (JR) and the lower insulator.

[0125] The controller (120a) may be configured to map the acquired second process data and second inspection data with the carrier ID of the carrier (115b). Accordingly, tracking of the second process data and second inspection data may be provided based on the carrier ID and / or the jelly roll ID mapped to the carrier ID.

[0126] Next, referring to FIGS. 1, 2, and 7, at P50, a jelly roll (JR) can be inserted into a cell case (CC). The process of P50 may also be referred to as a can insertion process. The jelly roll (JR) can be inserted into the cell case (CC) by a sub-equipment (110c). The cell case (CC) may be a metal can. The cell case (CC) may be either a cylindrical can or a square can. Hereinafter, the technical idea of ​​the present disclosure will be described with reference to an embodiment in which the cell case (CC) is a cylindrical can. However, this is for illustrative purposes and does not limit the technical idea of ​​the present disclosure in any sense. A person skilled in the art will easily arrive at an example in which the cell case (CC) is a square can based on the description herein.

[0127] The carrier (115b) of the sub-facility (110b) may be configured to transport the jelly roll (JR) to the sub-facility (110c). The sub-facility (110c) may include data matrix readers (111c) and a controller (113c). The controller (113c) may be configured to control the operation of the equipment elements for photographing the data matrix reader (111c) and inserting the jelly roll (JR) into the cell case (CC).

[0128] The data matrix readers (111b) may be configured to detect the data matrix (DM2a) of the carrier (115b) and the data matrix (DM3) of the cell case (CC). If the reading of the data matrix (DM2b) is successful, the data matrix reader (111c) may be configured to transmit a signal indicating the carrier ID of the carrier (115b) to the controller (120a). The controller (120a) may identify the carrier ID of the carrier (115b) based on the transmitted signal. If the reading of the data matrix (DM3) is successful, the data matrix reader (111c) may be configured to transmit a signal indicating the can ID of the cell case (CC) to the controller (120a).

[0129] The can ID of a cell case (CC) may include a plurality of symbols for distinguishing and / or identifying the cell case (CC). That is, the can ID may include information for identifying the cell case (CC). The can ID may be used to distinguish the cell case (CC). The can ID may include symbols indicating the coordinates of the cell case (CC) on the can tray. Accordingly, it may include tray coordinates.

[0130] The order of insertion of the cell cases (CC) can generally be determined based on the arrangement of the cell cases (CC) on the can tray. That is, the cell cases (CC) are inserted into the sub-equipment (110c) according to the arrangement of the cell cases (CC) on the can tray, and the symbol of the can ID indicating the tray coordinate of the jelly roll ID can indicate the order of insertion of the jelly roll (JR) for the sub-equipment (110a).

[0131] The controller (120a) may be configured to collect cell tracking data (CTDc) of the sub-facility (100c). The cell tracking data (CTDc) may include a carrier ID of the carrier (115b) and a can ID of the cell case (CC). The cell tracking data (CTDc) may further include time data regarding the time at which the carrier ID of the carrier (115b) was identified by the sub-facility (110c) and the can ID of the cell case (CC) was identified. In addition, the cell tracking data (CTDc) may further include a time matching the jelly roll ID of the jelly roll (JR) and the can ID of the cell case (CC).

[0132] The controller (120a) may be configured to match the carrier ID of the carrier (115b) with the cell case (CC) can ID. According to one embodiment, the controller (120a) may be configured to match the carrier ID of the carrier (115b) with the cell case (CC) can ID by comparing the identification time of the carrier ID and the identification time of the can ID based on the cell tracking data (CTDc). For example, if the time difference between the time at which the carrier ID is identified and the time at which the can ID is identified is within a preset threshold time value, the identified carrier ID and the identified can ID may be matched with each other. On the other hand, if the time difference between the time at which the carrier ID is identified and the time at which the can ID is identified exceeds the preset threshold time value, the identified carrier ID may be matched with another can ID whose time difference is within the threshold time value. The buffer of the controller (120a) stores a matching between the carrier ID of the carrier (115a) and the jelly roll ID of the jelly roll (JR) (or a matching between the carrier ID of the carrier (115b) and the jelly roll ID of the jelly roll (JR)), and the controller (120a) can be configured to match the jelly roll ID of the jelly roll (JR) to the can ID of the cell case (CC) through the carrier ID of the carrier (115a) (or the carrier ID of the carrier (115b)).

[0133] The cell tracking data (CTDc) of the sub-facility (115c) may further include the carrier ID of the carrier (115b) that matches the jelly roll ID. If the reading of the data matrix (DM2b) fails, the data matrix reader (111b) may be configured to transmit the unrecognized carrier ID to the controller (120a). The controller (120a) may be configured to issue the unrecognized jelly roll ID in response to receiving the unrecognized carrier ID, and the cell tracking data (CTDc) may include the unrecognized jelly roll ID.

[0134] If the reading of the data matrix (DM3) fails, the data matrix reader (111b) may be configured to transmit the unrecognized can ID to the controller (120a), and thus, the cell tracking data (CTDc) may include the unrecognized can ID.

[0135] Accordingly, some of the jelly roll IDs of the jelly roll (JR) may be matched with unrecognized can IDs, and some of the can IDs of the cell case (CC) may be matched with unrecognized jelly roll IDs.

[0136] The controller (120a) can obtain third process data and third inspection data corresponding to the P50 process targeting jelly rolls (JR) from the sub-facility (110c).

[0137] According to one embodiment, the third process data may include at least one of information related to the equipment that performed the P50 process on the jelly roll (JR), the time at which the P50 process was performed, and information related to the cell case (CC) into which the jelly roll (JR) is inserted.

[0138] According to one embodiment, the third inspection data may include measurement information measuring the dimensions of the cell case (CC) by scanning, an image obtained by photographing the cell case (CC) using a vision machine, and status information of the cell case (CC) inspected based on at least one of the measurement information and the image. Here, the status information may include at least one of information on whether the cell case (CC) is defective based on the dimensions of the cell case (CC) and information on the type of defect (e.g., defect in an opening, etc.) determined based on an appearance image of the cell case (CC).

[0139] The controller (120a) may be configured to map the acquired third process data and third inspection data with the can ID of the cell case (CC). Accordingly, tracking of the third process data and third inspection data may be provided based on at least one of the can ID, the carrier ID mapped to the can ID, and the jelly roll ID. In addition, historical data of semi-finished products for providing battery cells (BC, see FIG. 12 ) may be collected based on the data matrix on the cell case (CC), and tracking of the secondary battery manufacturing process may be provided.

[0140] Below, the P60 to P180 processes, in which a cell case (CC) with a jelly roll (JR) inserted is introduced during the secondary battery manufacturing process, are described.

[0141] Next, at P60, the negative tab (NT, see Fig. 3) of the jelly roll (JR) and the negative terminal of the cell case (CC) can be welded. The process of P50 may also be referred to as a negative tab welding process. The tab welding process may be resistance welding. By pressing the negative tab (NT, see Fig. 3) of the jelly roll (JR) and the negative terminal of the cell case (CC) with an electrode rod and applying voltage (or current) therebetween, the negative tab (NT, see Fig. 3) of the jelly roll (JR) and the cell case (CC) can be melt-welded. The negative tab (NT, see Fig. 3) of the jelly roll (JR) can be welded to the negative terminal of the cell case (CC) by a sub-equipment (110d).

[0142] The sub-equipment (110d) may include a data matrix reader (111d) and a controller (113d). The controller (113d) may be configured to control the operation of the equipment elements for photographing the data matrix reader (111d) and welding the negative tab (NT, see FIG. 3) of the jelly roll (JR) to the negative terminal of the cell case (CC).

[0143] The data matrix reader (111d) may be configured to detect the data matrix (DM3) of the cell case (CC). If the data matrix (DM3) is successfully read, the data matrix reader (111d) may be configured to transmit a signal indicating the can ID of the cell case (CC) to the controller (120a). The controller (120a) may identify the can ID of the cell case (CC) based on the transmitted signal.

[0144] The controller (120a) may be configured to collect cell tracking data (CTDd) of the sub-facility (110d). The cell tracking data (CTDd) may include a can ID of the cell case (CC). The cell tracking data (CTDd) may further include time data regarding the time at which the can ID of the cell case (CC) was identified by the sub-facility (110d). In addition, the cell tracking data (CTDd) may further include a time matched to the can ID of the cell case (CC). If the reading of the data matrix (DM3) fails, the cell tracking data (CTDd) of the sub-facility (110d) may include an unrecognized can ID of the cell case (CC).

[0145] Next, at P70, a swaging process can be performed on the cell case. The sub-equipment (110d) may further include a forging tool configured to perform a swaging process on the cell case (CC). In the swaging process, the upper portion of the cell case (CC) may be compression-molded to reduce its outer diameter. Here, the upper portion of the cell case (CC) may include an opening into which a jelly roll (JR) is inserted. In the swaging process, a step portion may be formed on the cell case (CC).

[0146] The controller (120a) can obtain fourth process data and fourth inspection data corresponding to the P60 and P70 processes targeting the jelly roll (JR) (or the cell case (CC) into which the jelly roll (JR) is inserted) from the sub-facility (110d).

[0147] According to one embodiment, the fourth process data may include at least one of information related to equipment that performed the P60, P70 process on the jelly roll (JR) (or the cell case (CC) into which the jelly roll (JR) is inserted), the time at which the P60, P70 process was performed, and information related to the set values ​​used in the P60, P70 process (e.g., pressure applied to the negative terminal of the cell case (CC), applied voltage (or current), welding position, number of welding strokes, forging die information, etc.).

[0148] According to one embodiment, the fourth inspection data may include measurement information measuring the dimensions of the cell case (CC) by scanning, an image obtained by photographing the cell case (CC) through a vision machine, and status information of the cell case (CC) inspected based on at least one of the measurement information and the image. Here, the image may include at least one of an appearance image of a jelly roll (JR) obtained by photographing through a vision machine before performing a cathode tab (NT) process, an appearance image of a jelly roll (JR) (or a cell case (CC) with a jelly roll (JR) inserted) obtained by photographing through a vision machine after performing a cathode tab (NT) process, and an appearance image of a jelly roll (JR) (or a cell case (CC) with a jelly roll (JR) inserted) obtained by photographing through a vision machine after performing a forging process. The status information may include at least one of information on whether the cell case (CC) is defective based on the dimensions of the cell case (CC) and information on the type of defect (e.g., jelly roll (JR) hole covering defect, jelly roll (JR) stamping defect, negative tab (NT) defect, etc.) determined based on the appearance image of the jelly roll (JR) (or the cell case (CC) into which the jelly roll (JR) is inserted).

[0149] The controller (120a) may be configured to map the acquired fourth process data and fourth inspection data with the can ID of the cell case (CC). Accordingly, tracking of the fourth process data and fourth inspection data may be provided based on at least one of the can ID, the carrier ID mapped to the can ID, and the jelly roll ID.

[0150] Next, in P80, an upper insulator can be inserted into the cell case (CC). The upper insulator can prevent unwanted short circuits between the cap assembly (CA, see FIG. 9) described below and the jelly roll (JR).

[0151] The sub-facility (110e) may include a data matrix reader (111e) and a controller (113e). The controller (113e) may be configured to control the operation of the equipment elements for photographing the data matrix reader (111e) and inserting the upper insulator.

[0152] The data matrix reader (111e) may be configured to detect the data matrix (DM3) of the cell case (CC). If the data matrix (DM3) is successfully read, the data matrix reader (111e) may be configured to transmit a signal indicating the can ID of the cell case (CC) to the controller (120b). The controller (120b) may identify the can ID of the cell case (CC) based on the transmitted signal.

[0153] The controller (120b) may be configured to collect cell tracking data (CTDe) of the sub-facility (110e). The cell tracking data (CTDe) may further include time data regarding the time at which the can ID of the cell case (CC) was identified by the sub-facility (110e). In addition, the cell tracking data (CTDe) may include the can ID of the cell case (CC). The cell tracking data (CTDe) may further include a time matching the can ID of the cell case (CC). If the reading of the data matrix (DM3) fails, the cell tracking data (CTDe) may include an unrecognized can ID of the cell case (CC).

[0154] The controller (120b) can obtain fifth process data and fifth inspection data corresponding to the P80 process targeting the jelly roll (JR) (or the cell case (CC) into which the jelly roll (JR) is inserted) from the sub-facility (110e).

[0155] According to one embodiment, the fifth process data may include at least one of information related to the equipment that performed the P80 process on the jelly roll (JR) (or the cell case (CC) with the jelly roll (JR) inserted), the time at which the P80 process was performed, and information related to the upper insulator combined with the jelly roll (JR).

[0156] According to one embodiment, the fifth inspection data may include measurement information measuring the dimensions (e.g., thickness, width) of the upper insulator inserted into the cell case (CC) by scanning, an image obtained by photographing the jelly roll (JR) (or the cell case (CC) with the jelly roll (JR) inserted) and the upper insulator by a vision machine, and status information of the jelly roll (JR) (or the cell case (CC) with the jelly roll (JR) inserted) and the upper insulator inspected based on at least one of the measurement information and the image. Here, the status information may include at least one of information on whether the upper insulator is defective based on the dimensions of the upper insulator and information on the type of defect determined based on the appearance image of the jelly roll (JR) (or the cell case (CC) with the jelly roll (JR) inserted) and the upper insulator.

[0157] The controller (120b) may be configured to map the acquired fifth process data and fifth inspection data with the can ID of the cell case (CC). Accordingly, tracking of the fifth process data and fifth inspection data may be provided based on the carrier ID and / or the jelly roll ID mapped to the carrier ID.

[0158] Next, at P90, a groove can be formed in the cell case (CC). The groove can be used for the mounting of the gasket described below. The P90 process can be referred to as beading. The groove in the cell case (CC) can be formed by a sub-equipment (110f).

[0159] The sub-facility (110f) may include a data matrix reader (111f) and a controller (113f). The controller (113f) may be configured to control the operation of the data matrix reader (111f) for photographing and the groove-forming tool in the cell case (CC).

[0160] The data matrix reader (111f) may be configured to detect the data matrix (DM3) of the cell case (CC). If the data matrix (DM3) is successfully read, the data matrix reader (111f) may be configured to transmit a signal indicating the can ID of the cell case (CC) to the controller (120b). The controller (120b) may identify the can ID of the cell case (CC) based on the transmitted signal.

[0161] The controller (120b) may be configured to collect cell tracking data (CTDf) of the sub-facility (110f). The cell tracking data (CTDf) may further include time data regarding the time at which the can ID of the cell case (CC) was identified by the sub-facility (110f). In addition, the cell tracking data (CTDf) may include the can ID of the cell case (CC). The cell tracking data (CTDf) may further include a time matching the can ID of the cell case (CC). If the reading of the data matrix (DM3) fails, the cell tracking data (CTDf) may include an unrecognized can ID of the cell case (CC).

[0162] The controller (120b) can obtain the sixth process data and the sixth inspection data corresponding to the P90 process targeting the jelly roll (JR) (or the cell case (CC) into which the jelly roll (JR) is inserted) from the sub-facility (110f).

[0163] According to one embodiment, the sixth process data may include at least one of information related to equipment that performed the P90 process on the jelly roll (JR) (or, cell case (CC) into which the jelly roll (JR) is inserted), the time at which the P90 process was performed, and information related to grooves formed in the cell case (CC) (e.g., target shape, size, number, etc. of the grooves).

[0164] According to one embodiment, the sixth inspection data may include an image obtained by capturing an image of a jelly roll (JR) (or a cell case (CC) with a jelly roll (JR) inserted) through a vision machine and status information of the jelly roll (JR) (or a cell case (CC) with a jelly roll (JR) inserted) inspected based on the image. Here, the status information may include information on a defect type (e.g., groove defect, etc.) determined based on an appearance image of the jelly roll (JR) (or a cell case (CC) with a jelly roll (JR) inserted).

[0165] The controller (120b) may be configured to map the acquired sixth process data and sixth inspection data with the can ID of the cell case (CC). Accordingly, tracking of the sixth process data and sixth inspection data may be provided based on the carrier ID and / or the jelly roll ID mapped to the carrier ID.

[0166] Next, at P100, an X-RAY inspection can be performed on the cell case (CC). The X-RAY inspection can be formed by a sub-equipment (110g). The arrangement and defects of the electrodes can be inspected by the X-RAY inspection.

[0167] The sub-facility (110g) may include a data matrix reader (111g) and a controller (113g). The controller (113g) may be configured to control the operation of the photographing and X-RAY-based inspection devices of the data matrix reader (111g).

[0168] The data matrix reader (111g) may be configured to detect the data matrix (DM3) of the cell case (CC). If the data matrix (DM3) is successfully read, the data matrix reader (111g) may be configured to transmit a signal indicating the can ID of the cell case (CC) to the controller (120b). The controller (120b) may identify the can ID of the cell case (CC) based on the transmitted signal.

[0169] The controller (120b) may be configured to collect cell tracking data (CTDg) of the sub-facility (110g). The cell tracking data (CTDg) may further include time data regarding the time at which the can ID of the cell case (CC) was identified by the sub-facility (110g). In addition, the cell tracking data (CTDg) may include the can ID of the cell case (CC). The cell tracking data (CTDg) may further include a time matching the can ID of the cell case (CC). If the reading of the data matrix (DM3) fails, the cell tracking data (CTDg) may include an unrecognized can ID of the cell case (CC).

[0170] The controller (120b) can obtain the seventh process data and the seventh inspection data corresponding to the P100 process targeting the jelly roll (JR) (or the cell case (CC) into which the jelly roll (JR) is inserted) from the sub-facility (110g).

[0171] According to one embodiment, the seventh process data may include at least one of information related to the equipment that performed the P100 process on the jelly roll (JR) (or the cell case (CC) into which the jelly roll (JR) is inserted) and the time at which the P100 process was performed.

[0172] According to one embodiment, the seventh inspection data may include an X-RAY image of the jelly roll (JR) (or, a cell case (CC) into which the jelly roll (JR) is inserted) and status information of the electrodes inspected based on the X-RAY image. Here, the status information may include a type of defect (e.g., electrode arrangement defect, size defect, electrode tab alignment defect, etc.) determined based on the X-RAY image of the jelly roll (JR) (or, a cell case (CC) into which the jelly roll (JR) is inserted).

[0173] The controller (120b) may be configured to map the acquired seventh process data and seventh inspection data with the can ID of the cell case (CC). Accordingly, tracking of the seventh process data and seventh inspection data may be provided based on at least one of the can ID, the carrier ID mapped to the can ID, and the jelly roll ID.

[0174] Next, referring to FIGS. 1, 2, and 8, at P110, an electrolyte may be injected into the cell case (CC). The process of P110 may also be referred to as an electrolyte injection process. The electrolyte may be formed by a sub-equipment (110h).

[0175] The sub-facility (110h) may include a data matrix reader (111h), a controller (113h), and an electrolyte injector (117h). The controller (113h) may be configured to control the photographing of the data matrix reader (111h) and the operation of the electrolyte injector (117h). The electrolyte injector (117h) may be configured to inject electrolyte into the cell case (CC) using a vacuum, capillary action, and wetting action.

[0176] The data matrix reader (111h) may be configured to detect the data matrix (DM3) of the cell case (CC). If the data matrix (DM3) is successfully read, the data matrix reader (111h) may be configured to transmit a signal indicating the can ID of the cell case (CC) to the controller (120c). The controller (120c) may identify the can ID of the cell case (CC) based on the transmitted signal.

[0177] The controller (120c) may be configured to collect cell tracking data (CTDh) of the sub-facility (110h). The cell tracking data (CTDh) may further include time data regarding the time at which the can ID of the cell case (CC) was identified by the sub-facility (110h). In addition, the cell tracking data (CTDh) may include the can ID of the cell case (CC). The cell tracking data (CTDh) may further include a time matching the can ID of the cell case (CC). If the reading of the data matrix (DM3) fails, the cell tracking data (CTDh) may include an unrecognized can ID of the cell case (CC).

[0178] The controller (120c) can obtain the 8th process data and the 8th inspection data corresponding to the P110 process targeting the jelly roll (JR) (or the cell case (CC) into which the jelly roll (JR) is inserted) from the sub-facility (110h).

[0179] According to one embodiment, the eighth process data may include at least one of information related to equipment that performed the P110 process on the jelly roll (JR) (or, cell case (CC) with the jelly roll (JR) inserted), the time at which the P110 process was performed, and information related to the electrolyte (e.g., electrolyte components, injection amount, etc.).

[0180] According to one embodiment, the eighth inspection data may include an image obtained by capturing an image of a cell case (CC) using a vision machine and status information of the inspected cell case (CC) based on the image. Here, the status information may include an electrolyte impregnation degree determined based on an external image of the cell case (CC).

[0181] The controller (120c) may be configured to map the acquired eighth process data and eighth inspection data with the can ID of the cell case (CC). Accordingly, tracking of the eighth process data and the eighth inspection data may be provided based on at least one of the can ID, the carrier ID mapped to the can ID, and the jelly roll ID.

[0182] Next, referring to FIGS. 1, 2, and 9, at P120, the positive tab (PT, see FIG. 3) of the jelly roll (JR) and the positive terminal of the cap assembly case (CA) can be welded. The process of P120 may also be referred to as a positive tab welding process. The positive tab (PT, see FIG. 3) of the jelly roll (JR) can be welded to the positive terminal of the cap assembly by a sub-equipment (110i).

[0183] The sub-facility (110i) may include a data matrix reader (111i) and a controller (113i). The controller (113i) may be configured to control the operation of the photographing and welding tools of the data matrix reader (111i).

[0184] The data matrix reader (111i) may be configured to detect the data matrix (DM3) of the cell case (CC). If the data matrix (DM3) is successfully read, the data matrix reader (111i) may be configured to transmit a signal indicating the can ID of the cell case (CC) to the controller (120c). The controller (120c) may identify the can ID of the cell case (CC) based on the transmitted signal.

[0185] The controller (120c) may be configured to collect cell tracking data (CTDi) of the sub-facility (110i). The cell tracking data (CTDi) may further include time data regarding the time at which the can ID of the cell case (CC) was identified by the sub-facility (110i). In addition, the cell tracking data (CTDi) may include the can ID of the cell case (CC). The cell tracking data (CTDi) may further include a time matching the can ID of the cell case (CC). If the reading of the data matrix (DM3) fails, the cell tracking data (CTDi) may include an unrecognized can ID of the cell case (CC).

[0186] The controller (120c) can obtain the 9th process data and the 9th inspection data corresponding to the P120 process targeting the jelly roll (JR) (or the cell case (CC) into which the jelly roll (JR) is inserted) from the sub-facility (110i).

[0187] According to one embodiment, the 9th process data may include at least one of information related to equipment that performed the P120 process on the jelly roll (JR) (or the cell case (CC) into which the jelly roll (JR) is inserted), the time at which the P120 process was performed, and information related to the set values ​​used in the P120 process (e.g., pressure applied to the positive terminal of the cell case (CC), applied voltage (or current), welding position, number of welding strokes, etc.).

[0188] According to one embodiment, the ninth inspection data may include measurement information measuring the dimensions of the cap assembly case (CA) by scanning, an image obtained by photographing the jelly roll (JR) (or the cell case (CC) with the jelly roll (JR) inserted) and the cap assembly case (CA) by a vision machine, and status information of the jelly roll (JR) (or the cell case (CC) with the jelly roll (JR) inserted) and the cap assembly case (CA) inspected based on at least one of the measurement information and the image. Here, the status information may include at least one of information on whether the cap assembly case (CA) is defective based on the dimensions of the cap assembly case (CA) and information on the type of defect determined based on the appearance images of the jelly roll (JR) (or the cell case (CC) with the jelly roll (JR) inserted) and the cap assembly case (CA).

[0189] The controller (120c) may be configured to map the acquired ninth process data and ninth inspection data with the can ID of the cell case (CC). Accordingly, tracking of the ninth process data and the ninth inspection data may be provided based on at least one of the can ID, the carrier ID mapped to the can ID, and the jelly roll ID.

[0190] Next, referring to FIGS. 1, 2, and 10, at P130, the battery cell can be sealed. The process of P130 may also be referred to as a crimping process. In the crimping process, the upper portion of the battery cell (BC), which includes a gasket and various safety devices (PTC, Safety Vent, Current Break), is pressurized, so that the battery cell (BC) can be sealed. Here, the upper portion of the battery cell (BC) may be a portion of the cell case (CC) in which a groove is formed in the beading process.

[0191] The sub-equipment (110j) may include a data matrix reader (111j), a controller (113j), and a crimping tool (117j). The controller (113j) may be configured to control the shooting of the data matrix reader (111j) and the operation of the crimping tool (117j).

[0192] The data matrix reader (111j) may be configured to detect the data matrix (DM3) of the cell case (CC). If the data matrix (DM3) is successfully read, the data matrix reader (111j) may be configured to transmit a signal indicating the can ID of the cell case (CC) to the controller (120c). The controller (120c) may identify the can ID of the cell case (CC) based on the transmitted signal.

[0193] Next, at P140, the battery cell can be sized. By pressurizing the battery cell (BC) in the axial direction (or height direction), the total height of the battery cell (BC) can be adjusted (or reduced). The sizing of the battery cell can be performed by the sub-equipment (110j).

[0194] The controller (120c) may be configured to collect cell tracking data (CTDj) of the sub-facility (110j). The cell tracking data (CTDj) may further include time data regarding the time at which the can ID of the cell case (CC) was identified by the sub-facility (110j). In addition, the cell tracking data (CTDj) may include the can ID of the cell case (CC). The cell tracking data (CTDj) may further include a time matching the can ID of the cell case (CC). If the reading of the data matrix (DM3) fails, the cell tracking data (CTDj) may include an unrecognized can ID of the cell case (CC).

[0195] The controller (120c) can obtain the 10th process data and the 10th inspection data corresponding to the P130 and P140 processes targeting the jelly roll (JR) (or the cell case (CC) into which the jelly roll (JR) is inserted) from the sub-facility (110j).

[0196] According to one embodiment, the 10th process data may include at least one of information related to equipment that performed the P130, P140 process on the jelly roll (JR) (or, cell case (CC) into which the jelly roll (JR) is inserted), information about the time at which the P130, P140 process was performed, information about the gasket that is seated in the groove, and information related to the set values ​​used in the P130, P140 process (e.g., pressure and number of pressurizations applied to the upper part of the battery cell (BC) during sealing, target total height of the battery cell (BC) during sizing, etc.).

[0197] According to one embodiment, the tenth inspection data may include an image obtained by capturing an image of a jelly roll (JR) (or a cell case (CC) with a jelly roll (JR) inserted) through a vision machine and status information of the jelly roll (JR) (or a cell case (CC) with a jelly roll (JR) inserted) inspected based on the image. Here, the status information may include information on a type of defect determined based on an appearance image of the jelly roll (JR) (or a cell case (CC) with a jelly roll (JR) inserted).

[0198] The controller (120c) may be configured to map the acquired 10th process data and 10th inspection data with the can ID of the cell case (CC). Accordingly, tracking of the 10th process data and 10th inspection data may be provided based on the carrier ID and / or the jelly roll ID mapped to the carrier ID.

[0199] Next, referring to FIGS. 1, 2, and 11, the battery cell (BC) can be cleaned at P150. Cleaning of the battery cell (BC) can be performed by a sub-equipment (110k). The sub-equipment (110k) can include a cleaning solution sprayer (117k) configured to spray a cleaning solution.

[0200] Next, at P160, the battery cell (BC) can be inspected. The inspection of the battery cell (BC) may include, for example, an external inspection using a vision machine and three-dimensional scanning of the battery cell (BC). The battery cell (BC) can be inspected using a sub-equipment (110l).

[0201] The processor (130) and / or the server (200) can obtain the 11th process data and the 11th inspection data corresponding to the P160 process targeting the battery cell (BC) from the sub-facility (110l).

[0202] According to one embodiment, the 11th process data may include at least one of information related to equipment that performed the P160 process on a battery cell (BC) and the time at which the P160 process was performed.

[0203] According to one embodiment, the eleventh inspection data may include at least one of measurement information measuring the dimensions of the battery cell (BC) by scanning, an image obtained by photographing the battery cell (BC) by a vision machine, and status information of the battery cell (BC) inspected based on at least one of the measurement information and the image. Here, the status information may include at least one of information on whether the battery cell (BC) is defective based on the dimensions of the battery cell (BC) and information on the type of defect (e.g., upper and / or lower meandering defect, side defect, etc.) determined based on an appearance image of the battery cell (BC).

[0204] The processor (130) and / or the server (200) may be configured to map the acquired 11th process data and 11th inspection data with the can ID of the cell case (CC). Accordingly, tracking of the 11th process data and the 11th inspection data may be provided based on at least one of the can ID, the carrier ID mapped to the can ID, and the jelly roll ID.

[0205] Next, referring to FIGS. 1, 2, and 12, at P170, a data matrix (DM4) can be formed on the battery cell (BC). The data matrix (DM4) can be formed by, for example, a method such as laser marking or ink jet marking. The data matrix (DM4) can be formed by a marking device (117m). The data matrix (DM4) can include information on the lot ID of the battery cell (BC). That is, when a data matrix reader reads the data matrix (DM4), a signal indicating the lot ID of the battery cell (BC) can be generated.

[0206] The lot ID of a battery cell (BC) may include multiple symbols for distinguishing and / or identifying the battery cell (BC). That is, the lot ID may include information for identifying the battery cell (BC). The lot ID may be used to distinguish the battery cell (BC).

[0207] The sub-facility (110m) may include data matrix readers (111m), a controller (113m), and a marking device (117m). The controller (113m) may be configured to control the shooting of the data matrix reader (111m) and the operation of the marking device (117m).

[0208] One of the data matrix readers (111m) may be configured to detect the data matrix (DM3) of the cell case (CC). If the data matrix (DM3) is successfully read, the data matrix reader (111m) may be configured to transmit a signal indicating the can ID of the cell case (CC) to the controller (120d). The controller (120d) may identify the can ID of the cell case (CC) based on the transmitted signal.

[0209] Another of the data matrix readers (111m) may be configured to detect a data matrix (DM4) formed by a marking device (117m). If the data matrix (DM3) is successfully read, the data matrix reader (111m) may be configured to transmit a signal indicating the lot ID of the battery cell (BC) to the controller (113m). The controller (113m) may be configured to transmit a signal indicating the lot ID of the battery cell (BC) to the controller (120d). The controller (120d) may identify the lot ID of the battery cell (BC) based on the transmitted signal.

[0210] The controller (120d) may be configured to collect cell tracking data (CTDm) of the sub-facility (110m). The cell tracking data (CTDm) may include a can ID of a cell case (CC) and a lot ID of a battery cell (BC). The cell tracking data (CTDm) may further include time data regarding the time at which the can ID of the cell case (CC) was identified by the sub-facility (110m) and the time at which the lot ID of the battery cell (BC) was identified.

[0211] The controller (120d) may be configured to match the can ID of the cell case (CC) with the lot ID of the battery cell (BC). According to one embodiment, the controller (120d) may be configured to match the can ID of the cell case (CC) with the lot ID of the battery cell (BC) by comparing the identification time of the can ID and the identification time of the lot ID based on the cell tracking data (CTDm). For example, if the time difference between the time at which the can ID is identified and the time at which the lot ID is identified is within a preset threshold time value, the identified can ID and the identified lot ID may be matched with each other. On the other hand, if the time difference between the time at which the can ID is identified and the time at which the lot ID is identified exceeds the preset threshold time value, the identified can ID may be matched with another lot ID whose time difference is within the threshold time value.

[0212] The cell tracking data (CTDm) may further include a time matching the can ID of the cell case (CC). If the readout of the data matrix (DM3) fails, the cell tracking data (CTDm) may include an unrecognized can ID of the cell case (CC). If the readout of the data matrix (DM4) fails, the cell tracking data (CTDm) may include an unrecognized lot ID of the cell case (CC).

[0213] Next, at P180, the internal resistance of the battery cell (BC) can be measured. The internal resistance of the battery cell (BC) can be determined based on the open circuit voltage of the battery cell (BC). The internal resistance of the battery cell (BC) can be measured by the sub-equipment (110n).

[0214] The sub-facility (110n) may include a data matrix reader (111n) and a controller (113n). The controller (113n) may be configured to control the operation of a jig and a measuring device for photographing the data matrix reader (111n) and measuring the internal resistance of a battery cell (BC).

[0215] The data matrix reader (111n) may be configured to detect the data matrix (DM3) of the cell case (CC). If the data matrix (DM3) is successfully read, the data matrix reader (111n) may be configured to transmit a signal indicating the can ID of the battery cell (BC) to the controller (120d). The controller (120d) may identify the can ID of the cell case (CC) based on the transmitted signal.

[0216] The controller (120d) may be configured to collect cell tracking data (CTDn) of the sub-facility (110n). The cell tracking data (CTDn) may include a can ID of a battery cell (BC). The cell tracking data (CTDn) may further include a time matching the can ID of the battery cell (BC). If the reading of the data matrix (DM3) fails, the cell tracking data (CTDn) may include an unrecognized can ID of the cell case (CC).

[0217] The controller (120d) can obtain the 12th inspection data corresponding to P180 targeting the battery cell (BC) from the sub-facility (110n). Here, the 12th inspection data can include information related to the internal resistance measurement result targeting the battery cell (BC). For example, the 12th inspection data can include information related to the status measurement value (e.g., open circuit voltage, internal resistance, etc.) of the battery cell (BC) and whether the inspected battery cell (BC) is abnormal based on the status measurement value.

[0218] The controller (120d) may be configured to match the acquired 12th inspection data with the can ID of the cell case (CC). Accordingly, tracking of the 12th inspection data may be provided based on at least one of the can ID, the carrier ID matched to the can ID, and the jelly roll ID.

[0219] As described above, the battery cell assembly process can be tracked using the jelly roll ID, carrier ID, can ID, and lot ID. That is, after shipment, the battery cell (BC) can be provided with a lot ID based on the readout of the data matrix (DM4), and based on the lot ID, tracking of the historical data of the sub-processes of the assembly process can be provided.

[0220] More specifically, sub-processes by sub-facilities (110a, 110b, 110c) can be tracked by jelly roll ID, and the jelly roll ID can be matched to the can ID by cell tracking data (CTDc) of the sub-facilities (110c, 110d, 110e, 110f, 110g, 110h, 110i, 110j, 110m, 110n) can be tracked by can ID, and the can ID can be matched to the lot ID by cell tracking data of the sub-facilities (110n).

[0221] Controllers (120a, 120b, 120c, 120d) may be configured to collect cell tracking data (CTDa, CTDb, CTDc, CTDd, CTDe, CTDf, CTDg, CTDh, CTDi, CTDj, CTDm, CTDn) from controllers (113a, 113b, 113c, 113d, 113e, 113f, 113g, 113h, 113i, 113j, 113m, 113n). More specifically, the controller (120a) may be configured to collect cell tracking data (CTDa, CTDb, CTDc, CTDd) collected from the controllers (113a, 113b, 113c, 113d), the controller (120b) may be configured to collect cell tracking data (CTDe, CTDf, CTDg) collected from the controllers (113e, 113f, 113g), the controller (120c) may be configured to collect cell tracking data (CTDh, CTDi, CTDj) collected from the controllers (113h, 113i, 113j), and the controller (120d) may be configured to collect cell tracking data (CTDm, CTDn) collected from the controllers (113m, 113n).

[0222] Controllers (120a, 120b, 120c, 120d) can perform the function of a network hub. The allocation of cell tracking data (CTDa, CTDb, CTDc, CTDd, CTDe, CTDf, CTDg, CTDh, CTDi, CTDj, CTDm, CTDn) collected from controllers (113a, 113b, 113c, 113d, 113e, 113f, 113g, 113h, 113i, 113j, 113m, 113n) illustrated in FIG. 2 is for illustrative purposes and does not limit the technical idea of ​​the present disclosure in any sense.

[0223] Each of the controllers (113a, 113b, 113c, 113d, 113e, 113f, 113g, 113h, 113i, 113j, 113m, 113n) and the controllers (120a, 120b, 120c, 120d) may be a Programmable Logic Controller (PLC). A PLC is a special type of microprocessor-based controller that uses programmable memory to store instructions and implement functions such as logic, sequencing, timing, counting, and arithmetic to control machines and processes. PLCs are easy to operate and program.

[0224] Each of the controllers (113a, 113b, 113c, 113d, 113e, 113f, 113g, 113h, 113i, 113j, 113m, 113n) and the controllers (120a, 120b, 120c, 120d) may include a power supply, a CPU, an input interface, an output interface, a communication interface, and memory devices. The power supply may be configured to supply power to other elements of the controller, such as the CPU, the input interface, the output interface, the communication interface, and the memory devices, for operation of the controller. The memory devices may include a read only memory (ROM) configured to store a system program, such as an operating system, and a random access memory (RAM) configured to store data, such as a user program and status information of input and output devices, timers, counters, and values ​​of other internal devices. The CPU may be configured to implement logic and control communication between modules that convert input signals into output operation signals. The CPU may operate based on system programs and user programs stored in memory devices. The CPU may be configured to write or read inspection data and measurement data to or from data areas of the memory devices based on the system programs and user programs. Conditions or data of industrial devices and production processes may be transmitted to the CPU via input modules. Results processed by the CPU may be transmitted to actuators via output modules. The communication interface may be configured to relay data transmission and reception between the controller and other network elements.

[0225] However, the present invention is not limited thereto, and each of the controllers (113a, 113b, 113c, 113d, 113e, 113f, 113g, 113h, 113i, 113j, 113m, 113n) and the controllers (120a, 120b, 120c, 120d) may include any one of a simple controller, a complex processor such as a microprocessor, a CPU, a GPU, a processor configured by software, dedicated hardware, and firmware. The controller may be implemented by, for example, a general-purpose computer or application-specific hardware such as a digital signal processor (DSP), a field programmable gate array (FPGA), and an application specific integrated circuit (ASIC).

[0226] The processor (130) may be configured to receive cell tracking data (CTDa, CTDb, CTDc, CTDd, CTDe, CTDf, CTDg, CTDh, CTDi, CTDj, CTDm, CTDn) from the controllers (120a, 120b, 120c, 120d). The processor (130) may be configured to collect cell tracking data from the controllers (120a, 120b, 120c, 120d).

[0227] The processor (130) may be configured to store a log file including at least one of a jelly roll ID, a carrier ID, a can ID, and a lot ID. The log file including at least one of a jelly roll ID, a carrier ID, a can ID, and a lot ID may include, for example, log files of data matrix readers (111a, 111b, 11111d, 111e, 111f, 111g, 111h, 111i, 111j, 111m, 111n), trigger log files of controllers (120a, 120b, 120c, 120d), NG code log files, and equipment data log files.

[0228] The processor (130) may be configured to generate a log file for the server based on a log file including at least one of a jelly roll ID, a carrier ID, a can ID, and a lot ID. The log file for the server may include logs of data matrix readers (111a, 111b, 111c, 111d, 111e, 111f, 111g, 111h, 111i, 111j, 111m, 111n), trigger logs of controllers (120a, 120b, 120c, 120d), NG code logs, and equipment data logs.

[0229] The log file for the server may have a format accessible from the server (200). The log file for the server may follow the Hypertext Transfer Protocol (HTTP). The log file for the server may have, for example, an HTML format.

[0230] The processor (130) may be configured to transmit cell tracking data (CTDa, CTDb, CTDc, CTDd, CTDe, CTDf, CTDg, CTDh, CTDi, CTDj, CTDm, CTDn) to the server (200). The server (200) may be configured to store the cell tracking data (CTDa, CTDb, CTDc, CTDd, CTDe, CTDf, CTDg, CTDh, CTDi, CTDj, CTDm, CTDn). The server (200) may be configured to store a match between different IDs used in each phase of the assembly process, such as a jelly roll ID, a carrier ID, a can ID, and a lot ID, thereby providing tracking of historical data of the assembly process of the secondary battery of the product during manufacturing or after shipment.

[0231] The server (200) may include a physical server or a cloud server. The server (200) may be implemented as a virtual server, but is not limited thereto. The server (200) may provide data and analysis results to workers through various frameworks. The framework may include a protocol supporting data transmission, allowing client devices to visualize data through a user interface and provide updated visualizations as the data is calculated by the server (200). The protocol supporting the data transmission may use HTML, JavaScript, and / or JSON.

[0232] The server (200) may include various Application Programming Interfaces (APIs) for storing data in databases and other data management tools. The APIs may also be used to retrieve data from databases in various data management systems. The data management systems may provide access to the databases, pull data from the databases, retrieve data, and generate metrics. Metrics are tools for visualizing data. Metrics include time-series measurements and can be used for monitoring applications and generating status alerts.

[0233] According to one embodiment, the server (200) may be configured to obtain a roll map of a jelly roll (JR) from an electrode manufacturing system (not shown) that performs an electrode manufacturing process prior to a secondary battery assembly process.

[0234] Here, the electrode manufacturing process may be a process of manufacturing a jelly roll (JR) through a mixing process for mixing various raw materials required for electrode manufacturing, a coating process for applying an active material and a predetermined insulating material to the surface of a metal electrode plate, which is a current collector, to form a positive electrode and a negative electrode, a rolling process for rolling the coated electrode, and a slitting process for cutting the rolled electrode to the specifications of the jelly roll (JR). In the mixing process, coating process, rolling process, and slitting process, the electrode may be wound between an unwinder and a rewinder and proceed in a roll-to-roll state. A roll map may be expressed in the form of a bar by simulating the progress of the electrode in each of a plurality of sub-processes included in the electrode manufacturing process. The longitudinal dimensions of the electrode may be depicted as coordinates on the roll map, and information on the quality of the electrode may be depicted together with the coordinates. For example, electrode appearance information acquired by an image-based inspection device such as a vision machine, information on short circuits and joints of the electrode, information on electrode portions on which sampling inspection has been performed, information on electrode portions scheduled for scrapping, information on scrapped electrode portions, information on whether coating materials and insulating materials on the electrode are defective, and information on types of defects in the electrode (e.g., pinhole defects, crater defects, line defects, crack defects, side ring defects, island defects, fold defects, wrinkle defects, dent defects, imprint defects, etc.) can be displayed on a roll map along with corresponding coordinates.

[0235] The server (200) may be configured to map a cell ID and a roll map corresponding to a semi-finished product cell. According to one embodiment, the server (200) may be configured to map a jelly roll ID and a roll map of a jelly roll (JR).

[0236] For example, the server (200) may be configured to map a jelly roll ID and a roll map based on an electrode lot ID of a jelly roll (JR). The server (200) may be configured to obtain an electrode lot ID of a jelly roll (JR) from an electrode manufacturing system (not shown). Furthermore, the server (200) may be configured to further obtain a mapping between the electrode lot ID of the jelly roll (JR) and the roll map from the electrode manufacturing system (not shown). The electrode manufacturing system (not shown) may be configured to generate an electrode lot ID of a jelly roll (JR) and generate a roll map based on the electrode progress of the jelly roll (JR) in the electrode manufacturing process. In addition, the electrode manufacturing system (not shown) may be configured to map the electrode lot ID of the jelly roll (JR) and the roll map to each other, and transmit the mapping between the electrode lot ID and the roll map to the server (200).

[0237] Since the jelly roll ID of the jelly roll (JR) is generated by the controller (113a) based on the electrode lot ID loaded from the server (200) as described above, the server (200) may be configured to map the jelly roll ID and the roll map using the electrode lot ID as a medium. Thereafter, the server (200) may be configured to map the roll map with at least one of the carrier ID, the can ID, and the lot ID that match the jelly roll ID. Accordingly, tracking for the roll map may be provided based on at least one of the jelly roll ID, the carrier ID, the can ID, and the lot ID mapped to the roll map.

[0238] According to one embodiment, the server (200) may be configured to obtain activation data of a battery cell (BC) from an activation system (not shown) that performs an activation process after a secondary battery assembly process.

[0239] Here, the activation process may be a process of stabilizing the battery structure and imparting battery characteristics to a battery cell (BC) manufactured through an assembly process through multiple sub-processes such as aging, charging, and discharging. The activation data may include setting data related to setting values ​​(e.g., aging temperature, charge / discharge SOC, etc.) used in multiple sub-processes included in the activation process, status data related to the status of the battery cell (BC) obtained during the activation process (e.g., voltage, current, temperature, SOC (State of Charge)), and diagnostic data diagnosing an abnormality (e.g., low voltage, internal short circuit, etc.) of the battery cell (BC) based on the status data.

[0240] According to one embodiment, the server (200) may be configured to obtain activation data from an activation system (not shown). Furthermore, the server (200) may be configured to further obtain a mapping between a can ID and / or a lot ID of a battery cell (BC) and the activation data from the activation system (not shown). The activation system (not shown) may be configured to identify a can ID and / or a lot ID of a battery cell (BC) that is a target of an activation process, and to generate activation data of the battery cell (BC) in the activation process. In addition, the activation system (not shown) may be configured to map the can ID and / or the lot ID of the battery cell (BC) to the activation data, and to transmit the mapping between the can ID and / or the lot ID and the activation data to the server (200). As described above, the can ID and / or lot ID of the battery cell (BC) are identified by the secondary battery manufacturing system (1000) and mapped with process data and IDs from previous processes (e.g., jelly roll ID, carrier ID), so that tracking of activation data of the battery cell (BC) can be provided based on at least one of the jelly roll ID, carrier ID, can ID, and lot ID.

[0241] The processor (130) and the server (200) may be implemented by hardware, firmware, software, or a combination thereof. For example, the processor (130) and the server (200) may include computing devices such as workstation computers, desktop computers, laptop computers, and tablet computers. The processor (130) and the server (200) may also include any one of simple controllers, complex processors such as microprocessors, CPUs, and GPUs, processors configured by software, dedicated hardware, and firmware. The processor (130) and the server (200) may be implemented by, for example, general-purpose computers or application-specific hardware such as digital signal processors (DSPs), field programmable gate arrays (FPGAs), and application specific integrated circuits (ASICs).

[0242] The operations of the processor (130) and the server (200) may be implemented as instructions stored on a machine-readable medium that can be read and executed by one or more processors. Here, the machine-readable medium may include any mechanism for storing and / or transmitting information in a form readable by a machine (e.g., a computing device). For example, the machine-readable medium may include a read-only memory (ROM), a random access memory (RAM), a magnetic disk storage medium, an optical storage medium, a flash memory, an electrical, optical, acoustical or other form of radio signal (e.g., a carrier wave, an infrared signal, a digital signal, etc.), and any other signal. The processor (130) and the server (200) may be configured with firmware, software, routines and instructions for performing the operations described above or any process described below. For example, the processor (130) and the server (200) may be instantiated in a memory.

[0243] The secondary battery manufacturing system (1000) can implement a plug-in architecture with an API for data acquisition to provide plug-and-play connectivity for sensors, measuring instruments, and testers. This allows resources from a specific process step and site to be easily transferred to other processes and sites, or new resources to be easily introduced to each process step and site.

[0244] In some embodiments, the secondary battery manufacturing system (1000) may further include a manual input system that allows a worker to input manufacturing data. The secondary battery manufacturing system (1000) may allow a worker to input data using an input tool and computer-based input of manufacturing data, such as scraping an Excel file. The manual input system may be, for example, a Human-Machine Interface (HMI) of a Supervisory Control And Data Acquisition (SCADA) system. SCADA may typically include a combination of software and hardware, such as a PLC and a Remote Terminal Unit (RTU). The HMI is a screen that supports communication between the operator and the SCADA system and is a key element of the SCADA system. For example, manual input by the HMI may include selecting a defect type and reflecting performance upon completion.

[0245] FIG. 13 is a diagram illustrating a method for managing data in a secondary battery manufacturing system (1000) according to exemplary embodiments. FIG. 14 is a diagram illustrating the roll map data illustrated in FIG. 13.

[0246] Referring to FIGS. 13 and 14, the secondary battery manufacturing system (1000) can be configured to map and manage roll map data (1030) collected based on the electrode manufacturing process (1010) and data (1060a, 1060b, 1060c, 1060d, 1060e, 1070a, 1070b, 1070c, 1070d, 1070e, 1080a, 1080b, 1080c, 1080d, 1080e) collected based on the assembly process (1040).

[0247] According to one embodiment, the secondary battery manufacturing system (1000) may be configured to obtain roll map data (1030) based on the electrode manufacturing process (1010). The roll map data (1030) may be data represented in a bar form by simulating the electrode progress in the mixing process (1020a), coating process (1020b), rolling process (1020c), and slitting process (1020d) included in the electrode manufacturing process (1010).

[0248] According to one embodiment, the secondary battery manufacturing system (1000) may be configured to obtain identification data (1060a, 1060b, 1060c, 1060d, 1060e) of a semi-finished product, process data (1070a, 1070b, 1070c, 1070d, 1070e), and inspection data (1080a, 1080b, 1080c, 1080d, 1080e) based on an assembly process (1040).

[0249] According to one embodiment, the secondary battery manufacturing system (1000) may be configured to acquire a jelly roll ID (1060a) of a jelly roll (JR), process data (1070a) of the winding process (1050a), and inspection data (1080a) based on a winding process (1050a) (e.g., the P10 process of FIG. 1) included in an assembly process (1040). At this time, the process data (1070a) and the inspection data (1080a) may be mapped to the jelly roll ID (1060a).

[0250] According to one embodiment, the secondary battery manufacturing system (1000) may be configured to map a jelly roll ID (1060a) to roll map data (1030). Accordingly, tracking of roll map data (1030), process data (1070a), and inspection data (1080a) may be provided based on the jelly roll ID (1060a).

[0251] According to one embodiment, the secondary battery manufacturing system (1000) may be configured to acquire a carrier ID (1060b) of a carrier, process data (1070b) of the carrier movement process (1050b), and inspection data (1080b) based on a carrier movement process (1050b) (e.g., P30, P40 processes of FIG. 1) included in an assembly process (1040). At this time, the process data (1070b) and the inspection data (1080b) may be mapped to the carrier ID (1060b).

[0252] According to one embodiment, the secondary battery manufacturing system (1000) may be configured to match a carrier ID (1060b) with a jelly roll ID (1060a). Accordingly, tracking of roll map data (1030), process data (1070a, 1070b), and inspection data (1080a, 1080b) may be provided based on at least one of the jelly roll ID (1060a) and the carrier ID (1060b).

[0253] According to one embodiment, the secondary battery manufacturing system (1000) may be configured to acquire a can ID (1060c) of a cell case (CC), process data (1070c) of the can insertion process (1050c), and inspection data (1080c) based on a can insertion process (1050c) (e.g., the P50 process of FIG. 1) included in an assembly process (1040). At this time, the process data (1070c) and the inspection data (1080c) may be mapped to the can ID (1060c).

[0254] According to one embodiment, the secondary battery manufacturing system (1000) may be configured to match a can ID (1060c) with a carrier ID (1060b). Accordingly, tracking of roll map data (1030), process data (1070a, 1070b, 1070c), and inspection data (1080a, 1080b, 1080c) may be provided based on at least one of the jelly roll ID (1060a), the carrier ID (1060b), and the can ID (1060c).

[0255] According to one embodiment, the secondary battery manufacturing system (1000) may be configured to acquire a can ID (1060d) of a cell case (CC), process data (1070d) of the can forming process (1050d), and inspection data (1080d) based on a can forming process (1050d) (e.g., processes P60 to P140 of FIG. 1) included in an assembly process (1040). At this time, the process data (1070d) and the inspection data (1080d) may be mapped with the can ID (1060d).

[0256] Meanwhile, since the can ID (1060c) and the can ID (1060d) are identical to each other, tracking of the roll map data (1030), process data (1070a, 1070b, 1070c, 1070d), and inspection data (1080a, 1080b, 1080c, 1080d) can be provided based on at least one of the jelly roll ID (1060a), carrier ID (1060b), and can ID (1060c) without separate ID matching.

[0257] According to one embodiment, the secondary battery manufacturing system (1000) may be configured to acquire a battery cell ID (1060e) (e.g., lot ID) of a battery cell (BC), process data (1070e) of the cleaning / inspection process (1050e), and inspection data (1080e) based on a cleaning / inspection process (1050e) (e.g., processes P150 to P180 of FIG. 1) included in an assembly process (1040). At this time, the process data (1070e) and the inspection data (1080e) may be mapped with the battery cell ID (1060e).

[0258] According to one embodiment, the secondary battery manufacturing system (1000) may be configured to match a battery cell ID (1060e) with a can ID (1060c). Accordingly, tracking of roll map data (1030), process data (1070a, 1070b, 1070c, 1070d, 1070e), and inspection data (1080a, 1080b, 1080c, 1080d, 1080e) may be provided based on at least one of the jelly roll ID (1060a), the carrier ID (1060b), the can ID (1060c), and the battery cell ID (1060e).

[0259] (Examples 3 and 4)

[0260] FIG. 15 is a flowchart illustrating a method for managing cell tracking data (CTDc) according to exemplary embodiments.

[0261] FIG. 16 is a diagram illustrating a method for managing cell tracking data (CTDc) according to exemplary embodiments. More specifically, FIG. 16 illustrates a portion of cell tracking data (CTDc) that includes a jelly roll ID.

[0262] FIG. 17 is a diagram illustrating a method for managing cell tracking data (CTDc) according to exemplary embodiments. More specifically, FIG. 17 illustrates a portion of cell tracking data (CTDc) that includes a CAN ID.

[0263] Referring to FIGS. 1, 2, 5, and 15 to 17, restoration of unrecognized jelly roll IDs and unrecognized can IDs may be performed by the server (200). The server (200) may include logic for restoration of unrecognized jelly roll IDs and unrecognized can IDs. The logic may operate based on a management cycle of preset cell tracking data (CTDc).

[0264] Cell tracking data (CTDc) can be loaded from P210. The unrecognized ID restoration logic may include a query to retrieve and / or load a portion of the cell tracking data (CTDc) containing an unrecognized jelly roll ID or an unrecognized can ID from the database of the server (200).

[0265] Next, the cell tracking data (CTDc) can be restored from P220. Restoration of the cell tracking data may include restoration of unrecognized jelly roll IDs from the cell tracking data (CTDc) collected from P50 or restoration of unrecognized can IDs from the cell tracking data (CTDc) collected from P50.

[0266] Referring to FIGS. 1, 2, 5, 15, and 16, an unrecognized jelly roll ID of cell tracking data (CTDc) can be restored based on a jelly roll ID that is temporally adjacent to the unrecognized ID. According to exemplary embodiments, the unrecognized jelly roll ID can be restored based on a jelly roll ID that precedes the unrecognized jelly roll ID. According to exemplary embodiments, the unrecognized jelly roll ID can be restored based on a jelly roll ID that follows the unrecognized jelly roll ID. According to exemplary embodiments, the unrecognized jelly roll ID can be restored based on a jelly roll ID that precedes the unrecognized jelly roll ID and a preceding jelly roll ID that follows the unrecognized jelly roll ID.

[0267] Here, the fact that an unrecognized jelly roll ID and a jelly roll ID are temporally neighbors means that there is no jelly roll ID matched to a third time between the first time matched to the unrecognized jelly roll ID and the second time matched to the jelly roll ID in the cell tracking data (CTDc). That is, in the time alignment of the cell tracking data (CTDc), if a jelly roll ID is arranged right next to an unrecognized jelly roll ID, the jelly roll IDs of the unrecognized jelly roll ID can be referred to as temporally neighbors.

[0268] As described above, the jelly roll ID can be generated based on the positive lot ID, positive count, tray ID, and tray coordinates. The last four symbols in the jelly roll ID represent the row and column coordinates on the tray (20). Other symbols in the jelly roll ID can represent the positive lot ID, positive count, and tray ID. 'A396Nca0003CC1D' highlighted in shade in the table of FIG. 14 may have a different format from the jelly roll ID and may be an unrecognized jelly roll ID.

[0269] Jelly rolls (JR) are arranged in a matrix on a tray (20) and sequentially fed into a sub-facility (110a), so that temporally adjacent jelly roll IDs can be derived from jelly rolls (JR) arranged adjacently on the tray (20). Accordingly, an unrecognized jelly roll ID 'A396Nca0003CC1D' can be restored based on a previous jelly roll ID 'WCCHJ71123JTM2AA06110117' and / or a subsequent jelly roll ID 'WCCHJ71123JTM2AA06110401'.

[0270] In this example, jelly rolls (JR) can be arranged in an 18×18 matrix on the tray (20). The last four symbols in the jelly roll ID 'WCCHJ71123JTM2AA06110117' and the jelly roll ID 'WCCHJ71123JTM2AA06110401' represent the coordinates of the jelly rolls (JR) on the tray (20). More specifically, the last four symbols '0117' of the jelly roll ID 'WCCHJ71123JTM2AA06110117' indicate that the jelly roll ID is derived from the jelly roll (JR) located in the 17th column of the first row of the tray (20), and the last four symbols '0401' of the jelly roll ID 'WCCHJ71123JTM2AA06110401' indicate that the jelly roll ID is derived from the jelly roll (JR) located in the 1st column of the fourth row of the tray (20). Meanwhile, since the jelly rolls (JR) are arranged in an 18×18 matrix on the tray (20), as can be seen in FIG. 16, it can be understood that there is no jelly roll ID derived from the jelly roll (JR) located in the 18th column of the first row of the tray (20). Therefore, the jelly roll ID of the jelly roll (JR) located in the 17th column of the first row of the tray (20) can be understood as being adjacent to the jelly roll ID of the jelly roll (JR) located in the 18th column of the first row of the tray (20).

[0271] Accordingly, since the unrecognized jelly roll ID 'A396Nca0003CC1D' can be restored based on the temporally adjacent jelly roll IDs, as can be seen in FIG. 16, the jelly roll (JR) corresponding to the jelly roll ID 'WCCHJ71123JTM2AA06110401' is arranged in a different row on the tray (20) from the jelly roll (JR) corresponding to the unrecognized jelly roll ID 'A396Nca0003CC1D', and the jelly roll (JR) corresponding to the jelly roll ID 'WCCHJ71123JTM2AA06110117' is arranged in the same row on the tray (20) as the jelly roll (JR) corresponding to the unrecognized jelly roll ID 'A396Nca0003CC1D'. Accordingly, the unrecognized jelly roll ID 'A396Nca0003CC1D' can be restored to 'WCCHJ71123JTM2AA06110118'.

[0272] That is, restoration of an unrecognized jelly roll ID may include changing, among neighboring jelly roll IDs, a symbol indicating a coordinate on the tray (20) (or an input order in the assembly process) to a neighboring coordinate. According to exemplary embodiments, restoration of an unrecognized jelly roll ID may include changing, among neighboring jelly roll IDs, a symbol indicating a coordinate on the tray (20) (or an input order in the assembly process) to a preceding coordinate (or order). According to exemplary embodiments, restoration of an unrecognized jelly roll ID may include changing, among neighboring jelly roll IDs, a symbol indicating a coordinate on the tray (20) (or an input order in the assembly process) to a subsequent coordinate (or order).

[0273] In the above, the restoration of unrecognized jelly roll IDs derived from an embodiment in which jelly rolls (JR) are arranged on a tray (20) in an 18×18 array has been described, but this is merely an example and does not limit the technical idea of ​​the present disclosure in any sense. A person skilled in the art will be able to easily achieve the restoration of unrecognized jelly roll IDs derived from an embodiment in which jelly rolls (JR) are arranged on a tray (20) in an arbitrary matrix.

[0274] Referring to FIGS. 1, 2, 7, 15, and 17, the restoration of an unrecognized CAN ID of cell tracking data (CTDc) may include restoring the unrecognized CAN ID based on a CAN ID that is temporally adjacent to the unrecognized CAN ID. According to exemplary embodiments, the unrecognized CAN ID may be restored based on a CAN ID preceding the unrecognized CAN ID. According to exemplary embodiments, the unrecognized CAN ID may be restored based on a CAN ID that follows the unrecognized CAN ID. According to exemplary embodiments, the unrecognized CAN ID may be restored based on a CAN ID preceding the unrecognized CAN ID and a preceding CAN ID that follows the unrecognized CAN ID. 'AD8Wo600005RQX' highlighted in shade in the table of FIG. 17 may have a different format from the CAN ID and may be an unrecognized CAN ID.

[0275] The cell cases (CC) are arranged in a matrix on the can tray and sequentially fed into the sub-facility (110c), and the temporally adjacent can IDs can be derived from jelly rolls (JR) that are arranged adjacently on the tray (20). That is, the adjacent can IDs in the cell tracking data (CTDc) can include symbols that change sequentially. Accordingly, at least one of the symbols of the can IDs in the cell tracking data (CTDc) can indicate the order in which the cell cases (CC) are fed into the sub-facility (110c).

[0276] For example, can ID 'L1D8P030330T04' may succeed can ID 'L1D8P030330T03', can ID 'L1D8P030330T05' may succeed can ID 'L1D8P030330T04', and can ID 'L1D8P030330T06' may succeed can ID 'L1D8P030330T05'. Accordingly, some of the symbols of the can ID may represent the input order of the cell case (CC) from which the can ID is derived. For example, the last two symbols of the can ID may represent the column coordinates on the can tray. For example, the cell cases (CC) on the can tray may be arranged in a 17×18 matrix. Referring to FIG. 17, since the last two symbols of the can ID are consecutive from 03 to 09 and from 0A to 0J, they can be understood as can IDs derived from cell cases (CC) arranged in 17 columns in one row, and the subsequent 17 can IDs can likewise be understood as derived from cell cases (CC) arranged in 17 columns in one row.

[0277] The unrecognized can ID 'AD8Wo600005RQX' can be restored based on the preceding can ID 'L1D8P030330T0J' and / or the subsequent can ID 'L1D8P030330T1L'. In this example, the cell cases (CC) on the can tray can be arranged in a 17×18 matrix, and 17 cans can be input to the sub-equipment (110c). Accordingly, the can ID 'L1D8P030330T0J' is derived from a different row from the unrecognized can ID 'AD8Wo600005RQX', and the can ID 'L1D8P030330T1L' is derived from the same row as the unrecognized can ID 'AD8Wo600005RQX'. Accordingly, the unrecognized can ID 'AD8Wo600005RQX' can be restored to 'L1D8P030330T1K'.

[0278] In the above, an example has been described in which 17 cell cases (CC) are introduced into the sub-facility (110c) and the 17 can IDs are sequentially changed. However, this is a simple example and does not limit the technical concept of the present disclosure in any sense. A person skilled in the art will easily be able to arrive at an embodiment in which a number of cell cases (CC) less than 17 or more than 17 are introduced into the sub-facility (110c) simultaneously.

[0279] The cell tracking data (CTDc) of P50 includes matching of jelly roll IDs and can IDs, and is important for linking preceding and succeeding historical data. According to exemplary embodiments, unrecognized jelly roll IDs and unrecognized can IDs can be restored based on the rules of the jelly roll IDs and can IDs of the cell tracking data (CTDc), thereby preventing traceability interruptions and enhancing the reliability of secondary battery manufacturing.

[0280] (Examples 5 and 6)

[0281] FIG. 18 is a flowchart illustrating a method for managing cell tracking data according to exemplary embodiments.

[0282] FIG. 19 is a diagram illustrating a method for managing cell tracking data according to exemplary embodiments.

[0283] FIG. 20 is a diagram illustrating a method for managing cell tracking data according to exemplary embodiments.

[0284] Referring to FIGS. 1, 2, 8, and 18 to 20, a data set for restoration can be configured in P310. In FIG. 19, in the cell tracking data (CTDc) of the sub-facility (100c) collected from the controller (113c), the number of continuities of the can IDs may be less than the intended number. For example, although the sub-facility (110c) is designed to have 17 cell cases (CC) injected at a time, the number of cell cases (CC) injected at a time into the sub-facility (110c) may be different from 17. In this case, it is not possible to select a can ID that will be used for restoration of the unrecognized can ID among the can ID following the unrecognized can ID and the can ID preceding the unrecognized can ID.

[0285] In this way, if the unrecognized can ID cannot be restored by the method of FIG. 15, a data set for restoration can be constructed at P310. More specifically, for restoration of the unrecognized can ID of the cell tracking data, a restoration data set including the cell tracking data of the current sub-process and the cell tracking data of the adjacent sub-process can be constructed.

[0286] For example, a restoration data set for restoring an unrecognized can ID of cell tracking data collected from a controller (113c) may include cell tracking data (CTDc) of a sub-equipment (110c) (i.e., a jelly roll insertion equipment) collected from a controller (113c) and cell tracking data (CTDd) collected from a sub-equipment (110c) (i.e., a tab welding equipment) collected from a controller (113d). A restoration data set for restoring an unrecognized can ID of cell tracking data (CTDc) collected from a controller (113c) is illustrated in FIG. 19.

[0287] For example, since the unrecognized ID 'AD5Go600007nsZ' of the cell tracking data of the equipment (110c) is between the can ID 'D1D4K0201204AB' and the can ID 'D1D4K020120D1H', the part between the can ID 'D1D4K0201204AB' and the can ID 'D1D4K020120D1H' among the cell tracking data collected from the sub-equipment (110c) (i.e., the tab welding equipment) collected from the controller (113d) may be included in the restored data set.

[0288] As another example, a restoration data set for restoring unrecognized can IDs of cell tracking data collected from a controller (113n) may include cell tracking data (CTDn) of a sub-facility (110n) (i.e., an internal resistance inspection facility) collected from a controller (113n) and cell tracking data (CTDm) of a sub-facility (110m) collected from a controller (113m) (i.e., a lot marking facility). A restoration data set for restoring unrecognized can IDs of cell tracking data (CTDn) collected from a controller (113n) is illustrated in FIG. 19.

[0289] Next, the cell tracking data can be restored from P320. Restoration of the cell tracking data may include restoration of unrecognized can IDs in the cell tracking data (CTDc) or restoration of unrecognized can IDs in the cell tracking data (CTDn) collected from P180.

[0290] For example, the unrecognized ID 'AD5Go600007nsZ' of the cell tracking data (CTDc) of the equipment (110c) is between the CAN ID 'D1D4K0201204AB' and the CAN ID 'D1D4K020120D1H', so it can be restored to either 'D1D4K0201204AC' following 'D1D4K0201204AB' or 'D1D4K020120D1G' preceding the CAN ID 'D1D4K020120D1H'. The can ID 'D1D4K0201204AC' is between the can ID 'D1D4K0201204AB' and the can ID 'D1D4K020120D1H' in the cell tracking data (CTDd) collected from the sub-equipment (110d) (i.e., the tab welding equipment) by the controller (113d), and is not included in the cell tracking data of the equipment (110c). Accordingly, the unrecognized ID 'AD5Go600007nsZ' in the cell tracking data (CTDc) of the equipment (110c) can be restored to the can ID 'D1D4K0201204AC'.

[0291] As another example, a can ID of a preceding sequence in the cell tracking data (CTDn) of the equipment (110n) (i.e., the internal resistance measurement equipment) may also be matched to a preceding sequence in the cell tracking data (CTDm) of the equipment (110m) (i.e., the lot ID marking equipment), and a can ID of a subsequent sequence in the cell tracking data (CTDn) of the equipment (110n) may also be matched to a subsequent sequence in the cell tracking data (CTDm) of the equipment (110m). That is, even if the sequence of each can ID in the cell tracking data (CTDn) of the equipment (110n) does not match the sequence of each can ID in the cell tracking data (CTDm) of the equipment (110m), the order is maintained.

[0292] The unrecognized ID 'AT16Of00008k17' of the cell tracking data (CTDn) of the equipment (110n) is between the CAN ID 'D1D2K020120B1F' and the CAN ID 'D1D2K020120AOL', so it can be restored to the CAN ID 'D1D2K020120B0F', which is between the CAN ID 'D1D2K020120B1F' and the CAN ID 'D1D2K020120AOL' among the cell tracking data of the equipment (110m).

[0293] (Example 7)

[0294] FIG. 21 is a flowchart illustrating a method for managing cell tracking data according to exemplary embodiments.

[0295] FIG. 22 is a diagram illustrating a method for managing cell tracking data according to exemplary embodiments.

[0296] Referring to FIGS. 21 and 22, first and second restoration data windows (W1, W2) can be configured in P410. The first restoration data window (W1) can be provided from cell tracking data including an unrecognized can ID.

[0297] The method of FIG. 21 can be used, like the method of FIG. 18, when an unrecognized can ID of cell tracking data cannot be restored based on a restoration data set. More specifically, cell tracking data (CTDi) of a previous process, such as a sub-process of P130, can be used to restore an unrecognized can ID of cell tracking data (CTDn). At this time, the order of the can IDs of the cell tracking data (CTDn) and the order of the cell tracking data (CTDi) may be different. Accordingly, the configuration of first and second restoration data windows (W1, W2) centered on the unrecognized can ID is required.

[0298] In the example of FIG. 22, a first restoration data window (W1) may be configured around the unrecognized can ID 'AD6SoF00000uTK'. The first restoration data window (W1) may include can IDs that are temporally adjacent to the unrecognized can ID 'AD6SoF00000uTK'. The first restoration data window (W1) may include a set number (e.g., 10) of preceding can IDs from the unrecognized can ID 'AD6SoF00000uTK'. The first restoration data window (W1) may include a set number (e.g., 10) of subsequent can IDs from the unrecognized can ID 'AD6SoF00000uTK'.

[0299] From the first restoration data window (W1), the first can ID 'D1D5U0402209GX' and the last can ID '1D5U0402209FQ' of the first restoration data window (W1) can be determined. The first can ID 'D1D5U0402209GX' and the last can ID '1D5U0402209FQ' of the first restoration data window (W1) can be used to configure the second restoration data window (W2). The second restoration data window (W2) can include a portion between the can ID 'D1D5U0402209GX' and the can ID '1D5U0402209FQ' among the cell tracking data of the equipment (110i) collected by the controller (117i).

[0300] Next, in P420, the cell tracking data can be restored. Restoring the cell tracking data may include matching each of the CAN IDs included in the second restoration data window (W2) with the CAN IDs of the cell tracking data from which the first restoration data window (W1) is derived. In the example of FIG. 22, the CAN ID 'D1D5U0402209H6' among the CAN IDs of the second restoration data window (W2) may not match with the CAN IDs of the cell tracking data from which the first restoration data window (W1) is derived. In this way, when only one CAN ID does not match with the CAN IDs of the cell tracking data from which the first restoration data window (W1) is derived, the unrecognized CAN ID can be restored with the corresponding CAN ID. Accordingly, the unrecognized CAN ID 'AD6SoF00000uTK' of the first window can be restored to 'D1D5U0402209H6'.

[0301] Hereinafter, a cell tracking method by a secondary battery manufacturing system (1000) will be described with reference to FIGS. 23 to 28. More specifically, a method by which the secondary battery manufacturing system (1000) tracks cells by matching IDs in a secondary battery manufacturing process can be described with reference to FIGS. 23 to 28.

[0302] FIG. 23 is a flowchart illustrating a method for managing cell tracking data according to exemplary embodiments.

[0303] Since the method of FIG. 23 can be performed by the secondary battery manufacturing system (1000) of FIG. 2, any description overlapping with the above may be omitted, and the method may be described using the configurations of FIG. 2.

[0304] The embodiment illustrated in FIG. 23 is only one embodiment, and the order of steps according to various embodiments of the present disclosure may be different from that illustrated in FIG. 23, and some of the steps illustrated in FIG. 23 may be omitted, the order between steps may be changed, or steps may be merged.

[0305] Referring to FIG. 23, at P510, the secondary battery manufacturing system (1000) can obtain a cell ID corresponding to a semi-finished cell. According to one embodiment, the secondary battery manufacturing system (1000) can obtain a cell ID based on cell tracking data (CTDa, CTDb, CTDc, CTDd, CTDe, CTDf, CTDg, CTDh, CTDi, CTDj, CTDm, CTDn).

[0306] Here, the semi-finished cell may include various types of semi-finished cells manufactured during the manufacturing process by the secondary battery manufacturing system (1000). For example, in the case of the manufacturing process of a can-type battery, the semi-finished cell may be configured as a jelly roll, which is a structure in which a cathode, an anode, and a separator are interposed, or a can-type battery cell in the form of a jelly roll inserted into a cell case. As another example, in the case of the manufacturing process of a pouch-type battery, the semi-finished cell may be configured as a unit cell composed of at least one polar electrode (e.g., a cathode and / or anode) and a separator, a stacked electrode assembly formed by stacking a plurality of unit cells, a folding electrode assembly formed by folding a plurality of unit cells, or a pouch-type battery cell in the form of an electrode assembly inserted into a pouch. At this time, the unit cell may be composed of a mono cell in which the positive and negative electrodes are positioned on the outermost sides, a bi-cell in which electrodes of the same polarity are positioned on the outermost sides, or a half cell in which the positive or negative electrode is positioned between the separators on the outermost sides.

[0307] In P520, the secondary battery manufacturing system (1000) can obtain a holder ID corresponding to a holder in which a semi-finished cell is placed. According to one embodiment, the secondary battery manufacturing system (1000) can obtain a holder ID based on cell tracking data (CTDa, CTDb, CTDc, CTDd, CTDe, CTDf, CTDg, CTDh, CTDi, CTDj, CTDm, CTDn).

[0308] Here, the holder may include various types of holders in which semi-finished cells are placed during the manufacturing process by the secondary battery manufacturing system (1000). For example, in the case of a manufacturing process of a can-type battery, the holder may be configured as a carrier (115a or 115b) in which a jelly roll is placed or a cell case in which a jelly roll is inserted. The carrier (115a or 115b) may be a configuration used to hold a jelly roll in a specific sub-process targeting the jelly roll. The cell case may be a configuration of a cylindrical battery cell and a configuration in which a jelly roll is inserted in a specific sub-process. As another example, in the case of a manufacturing process of a pouch-type battery, the holder may be configured as a magazine in which unit cells are stacked or a pouch in which unit cells are inserted. The magazine may be configured to hold a plurality of unit cells to be stacked or folded before a stacking or folding process for forming an electrode assembly by stacking or folding a plurality of unit cells after a notching process for forming electrode tabs on the electrode sheets of unit cells during the assembly process of a pouch-type battery and a lamination process for bonding the unit cells to a separator. The pouch may be a configuration in which a stacked cell or a folded cell is inserted during a packaging process, and is one configuration of a pouch-type battery cell.

[0309] In P530, the secondary battery manufacturing system (1000) can match the cell ID obtained in P510 and the holder ID obtained in P520.

[0310] FIGS. 24 to 28, which will be described below, are flowcharts for explaining a method of matching at least two of a jelly roll ID, a carrier ID, and a can ID in each of a plurality of sub-processes included in a can-type battery manufacturing process, taking as an example a case where the secondary battery manufacturing process by a secondary battery manufacturing system (1000) is a can-type battery manufacturing process. However, this is merely an example for convenience of explanation, and the cell tracking method of the present disclosure is not limited to the can-type battery manufacturing process and can also be applied to a pouch-type battery manufacturing process.

[0311] FIG. 24 is a flowchart illustrating a method for managing cell tracking data according to exemplary embodiments.

[0312] Since the method of FIG. 24 can be performed by the secondary battery manufacturing system (1000) of FIG. 2, any description overlapping with the above may be omitted, and the method may be described using the configurations of FIG. 2.

[0313] The embodiment illustrated in FIG. 24 is only one embodiment, and the order of steps according to various embodiments of the present disclosure may be different from that illustrated in FIG. 24, and some of the steps illustrated in FIG. 24 may be omitted, the order between steps may be changed, or steps may be merged.

[0314] Referring to FIG. 24, at P610, the secondary battery manufacturing system (1000) can obtain a jelly roll ID corresponding to a jelly roll based on the first sub-process. For example, the first sub-process may be the P30 process of FIG. 1 among the manufacturing processes by the secondary battery manufacturing system (1000).

[0315] In P620, the secondary battery manufacturing system (1000) may obtain a carrier ID corresponding to the carrier based on the second sub-process. Here, the carrier may be configured to load a jelly roll having the jelly roll ID obtained in P610 in the second sub-process. For example, the second sub-process may be the P40 process of FIG. 1 among the manufacturing processes by the secondary battery manufacturing system (1000).

[0316] At P630, the secondary battery manufacturing system (1000) can match the jelly roll ID obtained at P610 and the carrier ID obtained at P620. The P630 step, in which the secondary battery manufacturing system (1000) matches the jelly roll ID and the carrier ID, can be described in more detail with reference to FIGS. 25 and 26, which will be described later.

[0317] FIG. 25 is a flowchart illustrating a method for managing cell tracking data according to exemplary embodiments. More specifically, FIG. 25 is a flowchart illustrating a method for managing cell tracking data in the first sub-process described in FIG. 23 by the secondary battery manufacturing system (1000).

[0318] Since the method of FIG. 25 can be performed by the secondary battery manufacturing system (1000) of FIG. 2, any description overlapping with the above may be omitted, and the method may be described using the configurations of FIG. 2.

[0319] The embodiment illustrated in FIG. 25 is only one embodiment, and the order of steps according to various embodiments of the present disclosure may be different from that illustrated in FIG. 25, and some of the steps illustrated in FIG. 25 may be omitted, the order between steps may be changed, or steps may be merged.

[0320] Referring to FIG. 25, in P710, the secondary battery manufacturing system (1000) can identify a tray ID by detecting a code object of a tray on which a jelly roll is loaded. Here, the code object is a code image including information about the ID of a target detected and identified by a code reader (e.g., matrix reader (111a, 111b, 111c, 111d, 111e, 111f, 111g, 111h, 111i, 111j, 111m, 111n)), and can be implemented as at least one of a data matrix, a QR code, and a barcode.

[0321] In P720, the secondary battery manufacturing system (1000) can load the electrode lot ID and electrode count of the jelly roll. Here, the electrode count can indicate the order in which the jelly roll was manufactured in the winder equipment.

[0322] According to one embodiment, the secondary battery manufacturing system (1000) can load the electrode lot ID and electrode count of the jelly roll by triggering the tray ID identification of P710. For example, the secondary battery manufacturing system (1000) can load the positive electrode lot ID and positive electrode count from a server such as an MES. As another example, the secondary battery manufacturing system (1000) can also load the negative electrode lot ID and negative electrode count from a server such as an MES.

[0323] In P730, the secondary battery manufacturing system (1000) can determine the tray coordinates of the jelly roll on the tray. According to one embodiment, the secondary battery manufacturing system (1000) can determine the tray coordinates of the jelly roll on the tray based on the operation of a pick-and-place machine that moves the jelly roll loaded on the tray to the first carrier (115a) in the first sub-process.

[0324] In P740, the secondary battery manufacturing system (1000) can generate a jelly roll ID corresponding to a jelly roll. Here, the jelly roll ID may be a virtual ID generated using data related to the jelly roll.

[0325] According to one embodiment, the secondary battery manufacturing system (1000) can generate a jelly roll ID based on the tray ID identified in P710. According to one embodiment, the secondary battery manufacturing system (1000) can generate a jelly roll ID based on at least one of the electrode lot ID loaded in P720, the electrode count, and the tray coordinates determined in P730, in addition to the tray ID identified in P710.

[0326] In P750, the secondary battery manufacturing system (1000) can identify the first carrier ID by detecting the code object of the first carrier (115a) loaded with the jelly roll.

[0327] In P760, the secondary battery manufacturing system (1000) can match the jelly roll ID generated in P740 with the first carrier ID identified in P750. According to one embodiment, the secondary battery manufacturing system (1000) can match the jelly roll ID and the first carrier ID by comparing the time at which the jelly roll is generated in P740 and the time at which the first carrier ID is identified in P750. For example, if the time difference between the time at which the jelly roll ID is generated and the time at which the carrier ID is identified is within a preset threshold time value, the generated jelly roll ID and the identified carrier ID can be matched with each other. On the other hand, if the time difference between the time at which the jelly roll ID is generated and the time at which the carrier ID is identified exceeds the preset threshold time value, the generated jelly roll ID can be matched with another carrier ID whose time difference is within the threshold time value.

[0328] FIG. 26 is a flowchart illustrating a method for managing cell tracking data according to exemplary embodiments. More specifically, FIG. 26 is a flowchart illustrating a method for managing cell tracking data in the second sub-process described in FIG. 23 by the secondary battery manufacturing system (1000).

[0329] Since the method of FIG. 26 can be performed by the secondary battery manufacturing system (1000) of FIG. 2, any description overlapping with the above may be omitted, and the method may be described using the configurations of FIG. 2.

[0330] The embodiment illustrated in FIG. 26 is only one embodiment, and the order of steps according to various embodiments of the present disclosure may be different from that illustrated in FIG. 26, and some of the steps illustrated in FIG. 26 may be omitted, the order between steps may be changed, or steps may be merged.

[0331] Referring to FIG. 26, at P810, the secondary battery manufacturing system (1000) can identify the first carrier ID by detecting the code object of the first carrier (115a). P810 described herein may be a different step from P750 of FIG. 24. Specifically, P750 of FIG. 23 may be a step of identifying the first carrier ID during the first sub-process, while P810 may be a step of identifying the first carrier ID during the second sub-process.

[0332] In P820, the secondary battery manufacturing system (1000) can identify the second carrier ID by detecting the code object of the second carrier (115a).

[0333] At P830, the secondary battery manufacturing system (1000) can match the first carrier ID identified at P810 and the second carrier ID identified at P820. According to one embodiment, the secondary battery manufacturing system (1000) can match the first carrier ID and the second carrier ID by comparing the time at which the first carrier ID is identified at P810 and the time at which the second carrier ID is identified at P820. For example, if the time difference between the time at which the first carrier ID is identified and the time at which the second carrier ID is identified is within a preset threshold time value, the identified first carrier ID and the second carrier ID can be matched with each other. On the other hand, if the time difference between the time at which the first carrier ID is identified and the time at which the second carrier ID is identified exceeds the preset threshold time value, the identified first carrier ID can be matched with another second carrier ID whose time difference is within the threshold time value.

[0334] According to one embodiment, the secondary battery manufacturing system (1000) can store the matching between the jelly roll ID and the first carrier ID by P760 of FIG. 25. Accordingly, the secondary battery manufacturing system (1000) can match the jelly roll ID based on the first sub-process and the carrier ID (e.g., the second carrier ID) based on the second sub-process, as in P630 of FIG. 24, using the first carrier ID as a medium.

[0335] FIG. 27 is a flowchart illustrating a method for managing cell tracking data according to exemplary embodiments.

[0336] Since the method of FIG. 27 can be performed by the secondary battery manufacturing system (1000) of FIG. 2, any description overlapping with the above may be omitted, and the method may be described using the configurations of FIG. 2.

[0337] The embodiment illustrated in FIG. 27 is only one embodiment, and the order of steps according to various embodiments of the present disclosure may be different from that illustrated in FIG. 27, and some of the steps illustrated in FIG. 27 may be omitted, the order between steps may be changed, or steps may be merged.

[0338] Referring to FIG. 27, at P910, the secondary battery manufacturing system (1000) can obtain a jelly roll ID corresponding to the jelly roll based on the first sub-process. P910 may be the same step as P610 of FIG. 24.

[0339] In P920, the secondary battery manufacturing system (1000) can obtain a can ID corresponding to a cell case into which a jelly roll is inserted based on the third sub-process. For example, the third sub-process may be the P50 process of FIG. 1 among the manufacturing processes by the secondary battery manufacturing system (1000).

[0340] At P930, the secondary battery manufacturing system (1000) can match the jelly roll ID obtained at P910 with the can ID obtained at P920. The P930 step, in which the secondary battery manufacturing system (1000) matches the jelly roll ID and the can ID, can be described in more detail with reference to FIG. 28, which will be described later.

[0341] FIG. 28 is a flowchart illustrating a method for managing cell tracking data according to exemplary embodiments. More specifically, FIG. 28 is a flowchart illustrating a method for managing cell tracking data in the third sub-process described in FIG. 27 by the secondary battery manufacturing system (1000).

[0342] Since the method of FIG. 28 can be performed by the secondary battery manufacturing system (1000) of FIG. 2, any description overlapping with the above may be omitted, and the method may be described using the configurations of FIG. 2.

[0343] The embodiment illustrated in FIG. 28 is only one embodiment, and the order of steps according to various embodiments of the present disclosure may be different from that illustrated in FIG. 28, and some of the steps illustrated in FIG. 28 may be omitted, the order between steps may be changed, or steps may be merged.

[0344] Referring to FIG. 28, at P1010, the secondary battery manufacturing system (1000) can identify the second carrier ID by detecting the code object of the second carrier (115b). P1010 described herein may be a different step from P830 of FIG. 26. Specifically, P830 of FIG. 26 may be a step of identifying the second carrier ID during the second sub-process, while P1010 may be a step of identifying the second carrier ID during the third sub-process.

[0345] In P1020, the secondary battery manufacturing system (1000) can identify the can ID by detecting a code object of a cell case into which a jelly roll is inserted.

[0346] At P1030, the secondary battery manufacturing system (1000) can match the second carrier ID identified at P1010 with the can ID identified at P1020. According to one embodiment, the secondary battery manufacturing system (1000) can match the second carrier ID and the can ID by comparing the time at which the second carrier ID is identified at P1010 with the time at which the can ID is identified at P1020. For example, if the time difference between the time at which the second carrier ID is identified and the time at which the can ID is identified is within a preset threshold time value, the identified second carrier ID and the identified can ID can be matched with each other. On the other hand, if the time difference between the time at which the second carrier ID is identified and the time at which the can ID is identified exceeds the preset threshold time value, the identified second carrier ID can be matched with another can ID whose time difference is within the threshold time value.

[0347] According to one embodiment, the secondary battery manufacturing system (1000) can store the matching between the jelly roll ID and the first carrier ID by P760 of FIG. 25 and the matching between the first carrier ID and the second carrier ID by P830 of FIG. 26. Accordingly, the secondary battery manufacturing system (1000) can match the jelly roll ID based on the first sub-process and the can ID based on the third sub-process, as in P930 of FIG. 27, using the second carrier ID as a medium.

[0348] The present disclosure has been described in more detail through drawings and examples. However, the configurations described in the drawings or examples described in this specification are merely embodiments of the present disclosure and do not represent all of the technical ideas of the present disclosure. Therefore, it should be understood that various equivalents and modified examples may be substituted for them at the time of filing this application.

Claims

1. A step of obtaining a cell ID corresponding to a semi-finished product cell; A step of obtaining a holder ID corresponding to a holder in which the above semi-finished product cell is placed; and A cell tracking method, comprising a step of matching the cell ID and the holder ID.

2. In paragraph 1, A cell tracking method, wherein the above cell ID is a virtual ID generated using data related to the semi-finished product cell.

3. In paragraph 1, The above semi-finished product cell is a jelly roll having a coiled structure with a positive electrode, a negative electrode, and a separator interposed therebetween. A cell tracking method, wherein the step of obtaining the cell ID includes a step of generating a jelly roll ID corresponding to the jelly roll based on a first sub-process included in a secondary battery manufacturing process.

4. In paragraph 3, The above first sub-process is a process of loading the jelly roll placed on the tray into the first carrier, The steps to create the above jelly roll ID are: A step of identifying a tray ID by detecting a code object of the above tray, and A cell tracking method, comprising the step of generating the jelly roll ID based on the tray ID.

5. In paragraph 4, The steps to create the above jelly roll ID are: A step of loading the electrode lot ID and electrode count of the jelly roll based on the identification of the above tray ID, a step of determining the tray coordinates on the tray of the jelly roll; and A cell tracking method, comprising the step of generating the jelly roll ID further based on the electrode lot ID, the electrode count, and the tray coordinates.

6. In paragraph 1, A step of obtaining a roll map of the semi-finished cell based on an electrode manufacturing process included in a secondary battery manufacturing process; and A cell tracking method further comprising the step of matching the roll map and the cell ID.

7. In paragraph 1, The above holder is a carrier on which the semi-finished cell is placed during the secondary battery manufacturing process. A cell tracking method, wherein the step of obtaining the holder ID includes a step of obtaining a carrier ID corresponding to the carrier based on a second sub-process included in the secondary battery manufacturing process.

8. In paragraph 7, The second sub-process is a process of loading the semi-finished cell onto a second carrier and combining the semi-finished cell loaded onto the second carrier with the lower insulator. The step of obtaining the carrier ID includes the step of identifying the second carrier ID by detecting a code object of the second carrier, A cell tracking method, wherein the step of matching the cell ID and the holder ID includes the step of matching the cell ID and the second carrier ID.

9. In paragraph 8, Based on the first sub-process included in the secondary battery manufacturing process, the method further includes a step of matching the cell ID and the first carrier ID corresponding to the first carrier loaded with the semi-finished cell, The step of matching the cell ID and the second carrier ID includes the step of matching the first carrier ID and the second carrier ID, A cell tracking method, characterized in that the first sub-process is performed before the second sub-process is performed.

10. In paragraph 9, Based on the second sub-process, further comprising a step of identifying the first carrier ID by detecting the code object of the first carrier, A cell tracking method, wherein the step of matching the first carrier ID and the second carrier ID includes the step of matching the first carrier ID and the second carrier ID based on a first time at which the first carrier ID is identified based on the second sub-process and a second time at which the second carrier ID is identified based on the second sub-process.

11. In paragraph 8, A step of obtaining process data corresponding to the second sub-process targeting the semi-finished product cell; and A cell tracking method further comprising the step of mapping the carrier ID and the process data.

12. In paragraph 1, The above holder is a cell case or pouch into which the semi-finished cell is inserted during the third sub-process included in the secondary battery manufacturing process. A cell tracking method, wherein the step of obtaining the holder ID includes the step of detecting a code object of the cell case or pouch based on the third sub-process.

13. In paragraph 12, A cell tracking method, wherein the step of obtaining the holder ID includes the step of identifying a can ID corresponding to the cell case by detecting the code object of the cell case.

14. In paragraph 13, Based on the second sub-process included in the secondary battery manufacturing process, the step of matching the cell ID and the second carrier ID corresponding to the second carrier loaded with the semi-finished cell is further included. The step of matching the cell ID and the CAN ID includes the step of matching the second carrier ID and the CAN ID, A cell tracking method, characterized in that the second sub-process is performed before the third sub-process is performed.

15. In paragraph 14, Based on the third sub-process, further comprising a step of identifying the second carrier ID by detecting a code object of the second carrier, A cell tracking method, wherein the step of matching the second carrier ID and the can ID comprises the step of matching the second carrier ID and the can ID based on a third time at which the second carrier ID is identified based on the third sub-process and a fourth time at which the can ID is identified based on the third sub-process.

16. In paragraph 12, A step of acquiring process data corresponding to the third sub-process targeting the semi-finished product cell; and A cell tracking method further comprising the step of mapping the holder ID and the process data.

17. Multiple sub-equipment for performing multiple sub-processes included in the secondary battery manufacturing process; and At least one controller operatively connected to the plurality of sub-facilities, At least one of the above controllers, Obtain the cell ID corresponding to the semi-finished product cell, Obtain a holder ID corresponding to the holder in which the above semi-finished product cell is placed, A secondary battery manufacturing system configured to match the above cell ID and the above holder ID.

18. In paragraph 17, A secondary battery manufacturing system, wherein the above cell ID is a virtual ID generated using data related to the semi-finished product cell.

19. In paragraph 17, The above semi-finished product cell is a jelly roll having a coiled structure with a positive electrode, a negative electrode, and a separator interposed therebetween. The above plurality of sub-facilities include a first sub-facilities that perform a first sub-process among the above plurality of sub-processes, At least one of the above controllers, A secondary battery manufacturing system configured to generate a jelly roll ID corresponding to the jelly roll based on data obtained from the first sub-facility.

20. In paragraph 19, The above first sub-process is a process of loading the jelly roll placed on the tray into the first carrier, The above first sub-facility identifies the tray ID by detecting the code object of the tray, A secondary battery manufacturing system, wherein said at least one controller is configured to generate the jelly roll ID based on the tray ID.

21. In paragraph 20, The above first sub-facility, Based on the identification of the above tray ID, the electrode lot ID and electrode count of the jelly roll are loaded, Determine the tray coordinates on the tray of the above jelly roll, A secondary battery manufacturing system, wherein said at least one controller is configured to generate the jelly roll ID further based on the electrode lot ID, the electrode count, and the tray coordinates.

22. In paragraph 17, The above holder is a carrier on which the semi-finished cell is placed during the secondary battery manufacturing process, The above plurality of sub-facilities include a second sub-facilities that perform a second sub-process among the above plurality of sub-processes, A secondary battery manufacturing system, wherein the second sub-facility is configured to obtain a carrier ID corresponding to the carrier.

23. In paragraph 22, The second sub-process is a process of loading the semi-finished cell onto a second carrier and combining the semi-finished cell loaded onto the second carrier with the lower insulator. The second sub-facility identifies the second carrier ID by detecting the code object of the second carrier, A secondary battery manufacturing system, wherein said at least one controller is configured to match said cell ID and said second carrier ID.

24. In paragraph 23, The above plurality of sub-facilities include a first sub-facilities that perform a first sub-process among the above plurality of sub-processes, The above first sub-facility identifies the first carrier ID by detecting the code object of the first carrier loaded with the semi-finished product cell, At least one of the above controllers, Matching the above cell ID and the above first carrier ID, By matching the first carrier ID and the second carrier ID, the cell ID and the second carrier ID are configured to be matched, A secondary battery manufacturing system, characterized in that the first sub-process is performed before the second sub-process is performed.

25. In paragraph 24, The second sub-facility identifies the first carrier ID by detecting the code object of the first carrier, A secondary battery manufacturing system, wherein the at least one controller is configured to match the first carrier ID and the second carrier ID based on a first time at which the first carrier ID is identified by the second sub-facility and a second time at which the second carrier ID is identified by the second sub-facility.

26. In paragraph 22, At least one of the above controllers, From the second sub-facility, process data corresponding to the second sub-process targeting the semi-finished product cell is obtained, A secondary battery manufacturing system configured to map the carrier ID and the process data.

27. In paragraph 17, The above holder is a cell case or pouch into which the semi-finished cell is inserted during the third sub-process included in the secondary battery manufacturing process. The above plurality of sub-facilities include a third sub-facilities that perform the third sub-process, A secondary battery manufacturing system, wherein the third sub-facility is configured to identify the holder ID by detecting a code object of the cell case or the pouch.

28. In paragraph 27, A secondary battery manufacturing system, wherein the third sub-facility is configured to identify a can ID corresponding to the cell case by detecting the code object of the cell case.

29. In paragraph 28, The above plurality of sub-facilities include a second sub-facilities that perform a second sub-process among the above plurality of sub-processes, At least one of the above controllers, Matching the second carrier ID and the cell ID corresponding to the second carrier loaded with the semi-finished product cell, By matching the second carrier ID and the CAN ID, the cell ID and the CAN ID are configured to be matched, A secondary battery manufacturing system, characterized in that the second sub-process is performed before the third sub-process is performed.

30. In paragraph 29, The third sub-facility identifies the second carrier ID by detecting the code object of the second carrier, A secondary battery manufacturing system, wherein said at least one controller is configured to match the second carrier ID and the can ID based on a third time at which the second carrier ID is identified by the third sub-facility and a fourth time at which the can ID is identified by the third sub-facility.

31. In paragraph 27, At least one of the above controllers, From the third sub-facility, process data corresponding to the third sub-process targeting the semi-finished product cell is obtained, A secondary battery manufacturing system configured to map the above holder ID and the above process data.

32. In paragraph 17, At least one of the above controllers, A first controller operatively connected to a first group of sub-facilities grouped into a first number of sub-facilities among the above plurality of sub-facilities, and A secondary battery manufacturing system comprising a second controller operatively connected to a second sub-facility group grouped with a second number of sub-facility among the plurality of sub-facility.

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