WO2025150985A1 - 이차 전지 제조 시스템 - Google Patents
이차 전지 제조 시스템Info
- Publication number
- WO2025150985A1 WO2025150985A1 PCT/KR2025/000646 KR2025000646W WO2025150985A1 WO 2025150985 A1 WO2025150985 A1 WO 2025150985A1 KR 2025000646 W KR2025000646 W KR 2025000646W WO 2025150985 A1 WO2025150985 A1 WO 2025150985A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cell
- data
- tracking data
- jelly roll
- cell tracking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- a method for managing cell tracking data comprises the steps of loading cell tracking data including an unrecognized jelly roll ID and a jelly roll ID adjacent to the unrecognized jelly roll ID, wherein the jelly roll ID is used for distinguishing a jelly roll which is a winding structure of a positive electrode, a negative electrode and a separator; and the step of restoring the unrecognized jelly roll ID based on the jelly roll ID.
- the above jelly roll ID precedes the above unrecognized jelly roll ID.
- the above jelly roll is input into the assembly process of the secondary battery, and the jelly roll ID includes a symbol indicating the input order of the jelly roll, and the unrecognized jelly roll ID is restored to a value in which the symbol indicating the input order of the jelly roll ID is changed.
- a method of managing cell tracking data includes the steps of loading cell tracking data including an unrecognized can ID and a can ID adjacent to the unrecognized can ID, wherein the can ID is used to distinguish a cell case into which a jelly roll, which is a winding structure of an anode, an cathode, and a separator, is inserted; and the step of restoring the unrecognized can ID based on the can ID, wherein the can ID is determined by reading out a data matrix of the cell case, and the unrecognized can ID is determined by a failure in the reading out of the data matrix.
- a method for managing cell tracking data comprises the steps of: loading a restoration data set including first cell tracking data and second cell tracking data; and restoring an unrecognized can ID of the first cell tracking data based on the restoration data set, wherein the first cell tracking data is collected from a first sub-facility configured to perform a first sub-process of an assembly process of a battery cell, and the second cell tracking data is collected from a second sub-facility configured to perform a second sub-process of the assembly process of the battery cell, and the first cell tracking data and the second cell tracking data include a plurality of can IDs, and the can IDs are used to distinguish a cell case into which a jelly roll, which is a winding structure of a positive electrode, a negative electrode, and a separator, is inserted, and the can IDs are determined by reading out a data matrix of the cell case, and the unrecognized can IDs are determined by a failure in reading out the data matrix.
- the above second sub-process is performed after the above first sub-process is performed.
- the above second sub-process is performed before the above first sub-process is performed.
- the above unrecognized can ID is restored based on either the first can ID or the second can ID.
- FIG. 1 is a flowchart illustrating a method for manufacturing a secondary battery according to exemplary embodiments.
- FIG. 18 is a flowchart illustrating a method for managing cell tracking data according to exemplary embodiments.
- FIG. 21 is a flowchart illustrating a method for managing cell tracking data according to exemplary embodiments.
- FIG. 22 is a diagram illustrating a method for managing cell tracking data according to exemplary embodiments.
- FIG. 24 is a flowchart illustrating a method for managing cell tracking data according to exemplary embodiments.
- FIG. 25 is a flowchart illustrating a method for managing cell tracking data according to exemplary embodiments.
- FIG. 26 is a flowchart illustrating a method for managing cell tracking data according to exemplary embodiments.
- FIG. 27 is a flowchart illustrating a method for managing cell tracking data according to exemplary embodiments.
- FIG. 28 is a flowchart illustrating a method for managing cell tracking data according to exemplary embodiments.
- FIG. 1 is a flowchart illustrating a method for manufacturing a secondary battery according to exemplary embodiments.
- the secondary battery manufacturing system (1000) may be configured to perform a secondary battery manufacturing process.
- the secondary battery manufacturing process may include an electrode manufacturing process, an assembly process, and an activation process of the secondary battery.
- the secondary battery manufacturing system (1000) may be configured to perform an assembly process of the secondary battery.
- 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.
- 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)
- 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
- controllers (120a, 120b, 120c, 120d) illustrated in FIG. 2 and the allocation of the controllers (120a, 120b, 120c, 110d) 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.
- the secondary battery manufacturing system (1000) may include one controller that processes cell tracking data acquired from a plurality of sub-facilities (110a, 110b, 110c, 110d, 110e, 110f, 110g, 110h, 110i, 110j, 110k, 110l, 110m, 110n).
- the controller may be configured to independently process cell tracking data acquired from each of the plurality of sub-facilities (110a, 110b, 110c, 110d, 110e, 110f, 110g, 110h, 110i, 110j, 110k, 110l, 110m, 110n).
- a 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).
- the cell ID may be a virtual ID generated using data related to a semi-finished product cell.
- the controller (at least one of 120a, 120b, 120c, and 120d) can generate a virtual ID (e.g., a jelly roll ID) of a semi-finished cell based on at least one of a tray ID, tray coordinates, an electrode lot ID, and an electrode count of a tray in which a semi-finished cell (e.g., a jelly roll) is loaded.
- 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 to be described later. For example, when a carrier ID corresponding to the holder ID is obtained based on the P40 process of FIG.
- the semi-finished cell may include various types of semi-finished cells manufactured during the manufacturing process by the secondary battery manufacturing system (1000).
- 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.
- 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.
- polar electrode e.g., a cathode and/or anode
- separator e.g., 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
- a pouch-type battery cell in the form of an electrode assembly inserted into a pouch.
- 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.
- the holder in the case of a manufacturing process of a pouch-type battery, 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 process 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 electrode sheets of unit cells during an 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 a component of a pouch-type battery cell.
- a 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).
- 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.
- the 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.
- the controller 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.
- the controller may be configured to match the jelly roll ID and the carrier ID based on cell tracking data (CTDa) obtained from a sub-facility (110a) that performs a sub-process of loading a jelly roll placed on a tray into a carrier (115a).
- CTDa cell tracking data obtained from a sub-facility (110a) that performs a sub-process of loading a jelly roll placed on a tray into a carrier (115a).
- the cell tracking data 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
- the controller can 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.
- the controller (at least one of the controllers 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.
- the controller 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-facility (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.
- CTDb cell tracking data
- 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
- the controller 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 matching 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) can 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.
- CCDb cell tracking data
- the controller (at least one of 120a, 120b, 120c, and 120d) can 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).
- the cell tracking data (CTDc) may include time data for a third time at which the carrier ID was identified by the sub-facility (110c) and a fourth time at which the can ID was identified.
- the controller at least one of 120a, 120b, 120c, and 120d
- the buffer of the controller at least one of 120a, 120b, 120c, and 120d
- the controller (at least one of 120a, 120b, 120c, and 120d) can be configured to match the jelly roll ID to the 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).
- CCDc cell tracking data
- Mapping may mean storing an ID and data by linking them so that data that serves as a value can be referenced through an ID that serves as a key. That is, since the ID and the process data and/or the inspection data are mapped, the process data and/or the inspection data can be referenced through the ID.
- 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.
- 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 and a method for mapping the ID and process data will be specifically described, taking as an example a case where a secondary battery manufacturing process by a secondary battery manufacturing system (1000) is a can-type battery manufacturing process.
- a secondary battery manufacturing process by a secondary battery manufacturing system (1000) is a can-type battery manufacturing process.
- 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.
- a jelly roll 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)
- 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 collector and a positive electrode active material.
- the negative electrode sheet (NS) may include a negative electrode collector and a negative electrode active material.
- the thickness of the positive electrode collector may range from about 3 ⁇ m to about 500 ⁇ m.
- the positive electrode collector may not cause a chemical change in the secondary battery to be finally manufactured, and may have high conductivity.
- the positive electrode collector may include, for example, stainless steel, aluminum, nickel, titanium, sintered carbon, and aluminum.
- the positive electrode collector may also include stainless steel surface-treated with carbon, nickel, titanium, silver, or the like.
- the surface of the positive electrode collector may include a micro-roughened structure to increase the adhesion of the active material.
- the positive electrode collector may have a shape such as a film, a sheet, a foil, a net, a porous material, a foam, a non-woven fabric, or the like.
- the cathode active material is a material that can cause an electrochemical reaction.
- the cathode active material can 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 ⁇
- the thickness of the negative electrode collector may be in a range of about 3 ⁇ m to about 500 ⁇ m.
- the negative electrode collector may not cause a chemical change in the secondary battery to be finally manufactured, and may have high conductivity.
- the negative electrode collector may include copper, stainless steel, aluminum, nickel, titanium, sintered carbon, and an aluminum-cadmium alloy.
- the negative electrode collector may also include stainless steel surface-treated with carbon, nickel, titanium, silver, or the like.
- the surface of the negative electrode collector may include a micro-roughened structure to increase the adhesion of the active material.
- the negative electrode collector may have a shape such as a film, a sheet, a foil, a net, a porous material, a foam, a nonwoven fabric, or the like.
- the negative active material may include carbon, for example, non-graphitizable carbon, graphite carbon, etc.
- the negative active material may include a metal composite oxide, 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, an element of Group 1, Group 2, or Group 3 of the periodic table, and a halogen, and 0 ⁇ x ⁇ 1, 1 ⁇ y ⁇ 3, and 1 ⁇ z ⁇ 8).
- the negative active material may include, for example, lithium metal, a lithium alloy, a silicon-based alloy, or a tin-based alloy.
- the negative active material may include a metal oxide such as SnO, SnO2, PbO, PbO2, Pb2O3, Pb3O4, Sb2O3, Sb2O4, Sb2O5, GeO, GeO2, Bi2O3, Bi2O4, Bi2O5, etc.
- the negative active material may include a conductive polymer such as polyacetylene, a Li-Co-Ni based material, etc.
- a positive electrode sheet (PS), a negative electrode sheet (NS) and separators (SP) can be wound on a 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 rewinder (19) By winding the positive electrode sheet (PS), the negative electrode sheet (NS) and the separators (SP) on a mandrel, cutting and separating them, and welding a positive electrode tab (PT) and a negative electrode tab (NT) to the separated winding structure, a jelly roll (JR) can be provided.
- the positive electrode tab (PT) can be welded to a non-woven portion of the positive electrode, and the negative electrode tab (NT) can be welded to a non-woven 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.
- 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 a jelly roll (JR).
- JR jelly roll
- the first process data may include at least one of information related to equipment that performed the P10 process for manufacturing jelly rolls (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), etc.) and the time at which the P10 process was performed.
- JR information related to equipment that performed the P10 process for manufacturing jelly rolls
- PS positive electrode sheet
- NS negative electrode sheet
- SP separators
- the first inspection data may include measurement information measuring dimensions of elements constituting the jelly roll (JR) by a scanning method, images obtained by capturing elements constituting the jelly roll (JR) by a vision machine, and state information of the inspected jelly roll (JR) based on at least one of the measurement information and the images.
- 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 portion lanes on the upper surface of the electrode sheet (PS, NS) and coating portion lanes on the lower surface of the electrode sheet (PS, NS).
- 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
- the image may include an appearance image of the positive electrode sheet (PS), the negative electrode sheet (NS), the separators (SP), and the appearance images of the positive electrode tab (PT) and the negative electrode tab (NT) acquired by capturing through a vision machine.
- 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.
- the status information may include at least one of information on whether there is a defect based on dimensions of elements constituting the jelly roll (JR) (e.g., the positive electrode sheet (PS), the negative electrode sheet (NS), the separators (SP), the positive electrode tab (PT), the 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).
- 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.
- 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).
- Reading out the data matrix (DM1) may include taking 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).
- 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), as a trigger based on the identification of the tray ID.
- MES Manufacturing Execution System
- the controller (113a) may be configured to load the negative lot ID and the negative count from a server, such as a MES, as a trigger based on the identification of the tray ID.
- MES Manufacturing Execution System
- the technical idea of the present disclosure will be described focusing on an embodiment in which the positive lot ID is used to generate the jelly roll ID. However, this is for illustrative purposes only and does not limit the technical idea of the present disclosure in any sense.
- the positive count and the negative count represent the order in which the jelly rolls are manufactured in the winder equipment.
- the controller (113a) may be configured to determine the coordinates of the jelly rolls (JR) on the tray based on the operation of the pick-and-place machine.
- the controller (113a) may be configured to generate (or assign) a jelly roll ID based on the anode lot ID, the anode count, the tray ID, and the tray coordinates.
- the controller (113a) may transmit cell tracking data (CTDa) including the anode lot ID, the anode count, the tray ID, and the 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).
- the jelly roll ID may correspond to a virtual ID generated based on required data, rather than being identified by data matrix sensing.
- the jelly roll (JR) may not include a data matrix of the actual product. Accordingly, the jelly roll ID assigned in the step of processing at the jelly roll (JR) level may be generated and managed on the equipment network or the factory automation network, and may be referred to as a virtual ID. According to exemplary embodiments, the jelly roll ID may include anode lot ID, anode count, tray ID, and tray coordinates.
- the controller (120a) may transmit the jelly roll ID of the jelly roll (JR) to the processor (130) and/or the server (200).
- 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.
- 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 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, it may be configured to identify the carrier ID of the carrier (115a) 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).
- the pick and place machine picks up a jelly roll (JR) on a tray (20) and puts down 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).
- the cell tracking data (CTDa) may further include time data for the time at which the jelly roll ID is generated and the time at which the carrier ID is identified from the data matrix (DM1a) of the carrier (115a). Additionally, the cell tracking data (CTDa) may further include the time at which the carrier ID is matched to the jelly roll ID.
- 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 the 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.
- CTDa cell tracking data
- the generated jelly roll ID may be matched with another carrier ID whose time difference is within the threshold time value.
- the data matrix reader (111a) may be configured to generate an unrecognized jelly roll ID.
- 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).
- the unrecognized jelly roll ID may have different generation rules (or formats) from the jelly roll ID, and the unrecognized jelly roll ID can be easily distinguished from the jelly roll ID.
- the length of the unrecognized jelly roll ID may be different from the length of the jelly roll ID.
- an unrecognized carrier ID may be matched with a jelly roll ID.
- the unrecognized carrier ID may have a different generation rule (or format) from the carrier ID, and the unrecognized carrier ID may be easily distinguished from the carrier ID.
- the length of the unrecognized carrier ID may be different from the length of the carrier ID.
- 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).
- 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 facility elements for photographing the data matrix readers (111b) and combining the lower insulator with the jelly roll (JR).
- 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.
- the data matrix readers (111b) can be configured to detect data matrices (DM2a, DM2b) of the carriers (115a, 115b). One of the data matrix readers (111b) can be configured to detect the data matrix (DM2a) of the carrier (115a), and one of the data matrix readers (111b) can be configured to detect the data matrix (DM2b) of the carrier (115b). When the reading of the data matrices (DM2a, DM2b) is successful, the data matrix readers (111b) can be configured to transmit a signal indicating carrier IDs of the carriers (115a, 115b) to the controller (120a). The controller (120a) can 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).
- 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 for a time at which the carrier ID of the carrier (115a) was identified by the sub-facility (110b) and a time at which the carrier ID of the carrier (115b) was identified.
- the cell tracking data (CTDb) may further include a time at which the carrier IDs of the carriers (115a, 115b) were matched with each other. If the readout of any one of the data matrices (DM2a, DM2b) fails, the cell tracking data (CTDb) may include an unrecognized jelly roll ID.
- 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.
- CTDb cell tracking data
- 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).
- the controller (120a) can obtain second process data and second inspection data corresponding to the P40 process targeting a jelly roll (JR) from the sub-facility (110b).
- 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 coupled with the jelly roll (JR).
- the second inspection data may include measurement information measuring a dimension (e.g., thickness, width) of a lower insulator coupled to a jelly roll (JR) by a scanning method, an image obtained by photographing the jelly roll (JR) and the lower insulator by a vision machine, and condition information of the jelly roll (JR) and the lower insulator inspected based on at least one of the measurement information and the image.
- a dimension e.g., thickness, width
- condition information may include at least one of information on whether the lower insulator is defective based on the dimension 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, an out-tab defect of an electrode of the jelly roll (JR), etc.) determined based on an appearance image of the jelly roll (JR) and the lower insulator.
- type of defect e.g., a lower stamping defect of the jelly roll (JR), an in-tab defect, an out-tab defect of an electrode of the jelly roll (JR), etc.
- 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.
- 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 the sub-facility (110c).
- the cell case (CC) can be a metal can.
- the cell case (CC) can be either a cylindrical can or a square can.
- 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.
- 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-facility (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-facility (110a).
- 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 for a time at which the carrier ID of the carrier (115b) was identified by the sub-facility (110c) and a time at which the can ID of the cell case (CC) was identified.
- the cell tracking data (CTDc) may further include a time matched to a jelly roll ID of a jelly roll (JR) and a can ID of the cell case (CC).
- 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.
- CTDc cell tracking data
- 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) by using the carrier ID of the carrier (115a) (or the carrier ID of the carrier (115b)).
- the cell tracking data (CTDc) of the sub-facility (115c) may further include a carrier ID of a 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.
- 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.
- the jelly roll IDs of the jelly roll may match with unrecognized can IDs
- some of the can IDs of the cell case (CC) may match with unrecognized jelly roll IDs.
- the controller (120a) can obtain third process data and third inspection data corresponding to the P50 process targeting a jelly roll (JR) from the sub-facility (110c).
- the third process data may include at least one of information related to equipment that performed the P50 process targeting 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.
- the third inspection data may include measurement information measuring the dimensions of the cell case (CC) by scanning, an image obtained by capturing the cell case (CC) by 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.
- 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 external image of the cell case (CC).
- 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 the 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, based on the data matrix on the cell case (CC), historical data of semi-finished products for providing the battery cell (BC, see FIG. 12) may be collected, and tracking of the secondary battery manufacturing process may be provided.
- 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.
- the negative tab (NT, see FIG. 3) of the jelly roll (JR) and the negative terminal of 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 the sub-equipment (110d).
- the sub-facility (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 cathode tab (NT, see FIG. 3) of the jelly roll (JR) to the cathode terminal of the cell case (CC).
- 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.
- 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 for a time at which the can ID of the cell case (CC) was identified by the sub-facility (110d).
- 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).
- a swaging process can be performed on the cell case.
- the sub-facility (110d) can further include a forging tool configured to perform a swaging process on the cell case (CC).
- the upper part of the cell case (CC) can be compression-molded so that its outer diameter is reduced.
- the upper part of the cell case (CC) can include an opening into which a jelly roll (JR) is inserted.
- JR jelly roll
- a step portion can be formed on the cell case (CC).
- 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).
- 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), information related to 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.).
- 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
- information related to the time at which the P60, P70 process was performed 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.
- the fourth inspection data may include measurement information measuring the dimension of the cell case (CC) by scanning, an image obtained by photographing the cell case (CC) through a vision machine, and state information of the inspected cell case (CC) based on at least one of the measurement information and the image.
- 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.
- JR an appearance image of a jelly roll obtained by photographing through a vision machine before performing a cathode tab
- CC cell case
- JR jelly roll
- 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, cell case (CC) with the jelly roll (JR) inserted).
- 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.
- 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 the fourth inspection data may be provided based on at least one of the can ID, the can ID, the carrier ID mapped to the can ID, and the jelly roll ID.
- 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 later and the jelly roll (JR).
- 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 facility elements for photographing the data matrix reader (111e) and inserting the upper insulator.
- 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.
- 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 for the time at which the can ID of the cell case (CC) was identified by the sub-facility (110e).
- 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 matched to 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).
- 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).
- the fifth process data may include at least one of information related to equipment that performed the P80 process on the jelly roll (JR) (or, cell case (CC) with the jelly roll (JR) inserted), the time at which the P80 process was performed, and information related to an upper insulator combined with the jelly roll (JR).
- the fifth inspection data may include measurement information measuring a dimension (e.g., thickness, width) of an upper insulator inserted into a cell case (CC) by a scanning method, an image obtained by capturing an image of 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.
- a dimension e.g., thickness, width
- the status information may include at least one of information on whether the upper insulator is defective determined based on the dimension of the upper insulator and information on a type of defect determined based on an appearance image of the jelly roll (JR) (or the cell case (CC) with the jelly roll (JR) inserted) and the upper insulator.
- 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.
- a groove can be formed in the cell case (CC).
- the groove can be used for the fixing of the gasket described later.
- the process of P90 can be referred to as beading.
- the groove of the cell case (CC) can be formed by the sub-equipment (110f).
- 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).
- 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.
- 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 for a time at which a can ID of a cell case (CC) is identified by the sub-facility (110f).
- the cell tracking data (CTDf) may include a can ID of the cell case (CC).
- the cell tracking data (CTDf) 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 (CTDf) may include an unrecognized can ID of the cell case (CC).
- 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).
- 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, the 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).
- the sixth inspection data may include an image acquired 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 the cell case (CC) with a jelly roll (JR) inserted) inspected based on the image.
- 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 the cell case (CC) with a jelly roll (JR) inserted).
- 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.
- X-RAY inspection can be performed on the cell case (CC).
- the X-RAY inspection can be formed by the sub-equipment (110g).
- the arrangement and defects of the electrodes can be inspected by the X-RAY inspection.
- 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).
- 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.
- 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 for the time at which the can ID of the cell case (CC) was identified by the sub-facility (110g).
- 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 matched to 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).
- 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).
- the seventh process data may include at least one of information related to equipment that performed the P100 process on the jelly roll (JR) (or, cell case (CC) with the jelly roll (JR) inserted) and the time at which the P100 process was performed.
- 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 condition information of the electrode inspected based on the X-RAY image.
- the condition information may include a defect type (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).
- 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.
- an electrolyte can be injected into the cell case (CC).
- the process of P110 may also be referred to as an electrolyte injection process.
- the electrolyte can be formed by a sub-facility (110h).
- 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 shooting 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) by using a vacuum, a capillary phenomenon, and a wetting phenomenon.
- 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.
- 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 for the time at which the can ID of the cell case (CC) was identified by the sub-facility (110h).
- 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 matched to 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).
- 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).
- the 8th 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) into which the jelly roll (JR) is inserted), the time at which the P110 process was performed, and information related to the electrolyte (e.g., electrolyte components, injection amount, etc.).
- 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 can ID, the carrier ID mapped to the can ID, and the jelly roll ID.
- 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).
- 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.
- 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 for the time at which the can ID of the cell case (CC) was identified by the sub-facility (110i).
- 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 matched to 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).
- 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).
- 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, cell case (CC) into which the jelly roll (JR) is inserted), information related to 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.).
- information related to equipment that performed the P120 process on the jelly roll (JR) or, cell case (CC) into which the jelly roll (JR) is inserted
- information related to the time at which the P120 process was performed e.g., pressure applied to the positive terminal of the cell case (CC), applied voltage (or current), welding position, number of welding strokes, etc.
- 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.
- the ninth inspection data may include measurement information measuring a dimension of a cap assembly case (CA) by a scanning method, an image obtained by capturing an image of a jelly roll (JR) (or a cell case (CC) with a jelly roll (JR) inserted) and a cap assembly case (CA) by a vision machine, and status information of the jelly roll (JR) (or a cell case (CC) with a jelly roll (JR) inserted) and the cap assembly case (CA) inspected based on at least one of the measurement information and the image.
- JR jelly roll
- CC cell case
- JR jelly roll
- CA cap assembly case
- the status information may include at least one of information on whether the cap assembly case (CA) is defective as determined based on the dimension of the cap assembly case (CA) and information on a type of defect as determined based on an appearance image of the jelly roll (JR) (or a cell case (CC) with a jelly roll (JR) inserted) and the cap assembly case (CA).
- CA cap assembly case
- JR jelly roll
- CC cell case
- JR jelly roll
- the controller (120c) may be configured to map the acquired 9th process data and 9th inspection data with the can ID of the cell case (CC). Accordingly, tracking of the 9th process data and the 9th inspection data may be provided based on at least one of the can ID, the can ID, the carrier ID mapped to the can ID, and the jelly roll ID.
- the battery cell can be sealed.
- the process of P130 may also be referred to as a crimping process.
- the upper portion of the battery cell (BC) including the gasket and various safety devices (PTC, Safety Vent, Current Break) is pressurized, so that the battery cell (BC) can be sealed.
- 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.
- 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).
- 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.
- the battery cell can be sized.
- 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-facility (110j).
- 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 for the time at which the can ID of the cell case (CC) was identified by the sub-facility (110j).
- 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 matched to 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).
- 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).
- the tenth inspection data may include an image acquired 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.
- the status information may include information on a defect type determined based on an appearance image of the jelly roll (JR) (or a cell case (CC) with a jelly roll (JR) inserted).
- 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 the 10th inspection data may be provided based on the carrier ID and/or the jelly roll ID mapped to the carrier ID.
- the battery cell (BC) can be cleaned at P150.
- the 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.
- the battery cell (BC) can be inspected.
- the inspection of the battery cell (BC) can include, for example, an appearance inspection by a vision machine and three-dimensional scanning of the battery cell (BC).
- the battery cell (BC) can be inspected by the sub-equipment (110l).
- 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).
- 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.
- BC battery cell
- the 11th inspection data may include at least one of measurement information measuring a dimension of a battery cell (BC) by scanning, an image acquired 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.
- the status information may include at least one of information on whether the battery cell (BC) is defective based on the dimension 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).
- 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 and ink jet marking.
- the data matrix (DM4) can be formed by a marking machine (117m).
- the data matrix (DM4) can include information on a lot ID of the battery cell (BC). That is, when a data matrix reader reads the data matrix (DM4), a signal indicating a lot ID of the battery cell (BC) can be generated.
- the lot ID of a battery cell may include a plurality of 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).
- 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).
- 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 a 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.
- Another one 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 a lot ID of the battery cell (BC) to the controller (113m). The controller (113m) may be configured to transmit a signal indicating a 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.
- DM4 data matrix 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 a lot ID of the battery cell (BC) to the controller (113m). The controller (113m) may be configured to transmit a signal indicating a lot ID of the battery cell (BC) to the controller (120d). The controller (120d) may identify the lot ID of the battery cell (BC
- 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 about a time at which the can ID of the cell case (CC) was identified by the sub-facility (110m) and a time at which the lot ID of the battery cell (BC) was identified.
- 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).
- 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.
- 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).
- 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 a 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.
- 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 matched to 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 a cell case (CC).
- the controller (120d) can obtain the 12th inspection data corresponding to P180 targeting the battery cell (BC) from the sub-facility (110n).
- the 12th inspection data can include information related to the internal resistance measurement result targeting the battery cell (BC).
- 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.
- the assembly process of the battery cell can be traced by the jelly roll ID, carrier ID, can ID, and lot ID. That is, the battery cell (BC) after shipment can be provided with a lot ID based on the readout of the data matrix (DM4), and tracking of the historical data of the sub-processes of the assembly process can be provided based on the lot ID.
- the battery cell (BC) after shipment can be provided with a lot ID based on the readout of the data matrix (DM4), and tracking of the historical data of the sub-processes of the assembly process can be provided based on the lot ID.
- the sub-processes by the sub-facilities (110a, 110b, 110c) can be tracked by the jelly roll ID, and the jelly roll ID can be matched to the can ID by the cell tracking data (CTDc) of the sub-facilities (110c, 110d, 110e, 110f, 110g, 110h, 110i, 110j, 110m, 110n) can be tracked by the can ID, and the can ID can be matched to the lot ID by the cell tracking data of the sub-facilities (110n).
- CCDc cell tracking data
- Controllers 120a, 120b, 120c, 120d
- Controllers can 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).
- Controllers 120a, 120b, 120c, 120d
- 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 example only and does not limit the technical idea of the present disclosure in any sense.
- 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).
- PLC Programmable Logic Controller
- 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.
- 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 control communication between modules that implement logic and convert input signals into output operation signals.
- the CPU may operate based on a system program and a user program stored in memory devices.
- the CPU may be configured to write or read inspection data and measurement data to a data area of the memory devices based on the system program and the user program.
- Conditions or data of industrial devices and production processes may be transmitted to the CPU through the input module.
- the result processed by the CPU may be transmitted to an actuator through the output module.
- the communication interface may be configured to relay transmission and reception of data between the controller and other network elements.
- 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 DSP (Digital Signal Processor), an FPGA (Field Programmable Gate Array), and an ASIC (Application Specific Integrated Circuit).
- DSP Digital Signal Processor
- FPGA Field Programmable Gate Array
- ASIC Application Specific Integrated Circuit
- 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.
- 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.
- 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).
- HTTP Hypertext Transfer Protocol
- the log file for the server may have, for example, an html format.
- the server (200) may be configured to store matching 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 an assembly process of a secondary battery of a product during manufacturing or after shipment.
- IDs used in each phase of the assembly process
- 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 the worker through various frameworks.
- the framework may include a protocol supporting data transmission so that the client device can visualize the 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.
- the server (200) may include various Application Programming Interfaces (APIs) for storing data in databases and other data management tools.
- APIs may also be used to retrieve data from databases of 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 generated measurements and may be used for monitoring applications and generating status alerts.
- 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.
- JR jelly roll
- the electrode manufacturing process may be a process for manufacturing a jelly roll (JR) through a mixing process for mixing various raw materials necessary 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).
- the electrode may be wound between an unwinder and a rewinder and may proceed in a roll-to-roll state.
- the roll map may represent the progress of the electrode in each of a plurality of sub-processes included in the electrode manufacturing process in the form of a bar.
- the longitudinal dimension of the electrode may be depicted as a coordinate on the roll map, and information on the quality of the electrode may be depicted together with the corresponding coordinates.
- electrode appearance information acquired by an image-based inspection device such as a vision machine, information on open 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 plotted on a roll map together with corresponding coordinates.
- 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.
- 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).
- JR jelly roll
- the server (200) may be configured to map the jelly roll ID and the roll map based on the electrode lot ID of the jelly roll (JR).
- the server (200) may be configured to obtain the electrode lot ID of the jelly roll (JR) from an electrode manufacturing system (not shown).
- 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 the electrode lot ID of the jelly roll (JR) and generate the roll map based on the electrode progress of the jelly roll (JR) in the electrode manufacturing process.
- 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).
- the server (200) can be configured to map the jelly roll ID and the roll map using the electrode lot ID as a medium. Thereafter, the server (200) can be configured to map at least one of the carrier ID, the can ID, and the lot ID that match the jelly roll ID and the roll map. Accordingly, tracking for the roll map can 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.
- 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.
- the activation process may be a process of stabilizing the battery structure and imparting battery characteristics to the battery cell (BC) manufactured through the assembly process through a plurality of 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 a plurality of 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.
- setting values e.g., aging temperature, charge/discharge SOC, etc.
- 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)
- 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 generate activation data of the battery cell (BC) in the activation process.
- the activation system may be configured to map the can ID and/or the lot ID of the battery cell (BC) and the activation data to each other, and transmit the mapping between the can ID and/or the lot ID and the activation data to the server (200). Since the can ID and/or lot ID of the battery cell (BC) are identified by the secondary battery manufacturing system (1000) as described above and mapped with the process data and IDs (e.g., jelly roll ID, carrier ID) from the previous process, tracking of the activation data of the battery cell (BC) can be provided based on at least one of the jelly roll ID, the carrier ID, the can ID, and the lot ID.
- the process data and IDs e.g., jelly roll ID, carrier ID
- the processor (130) and the server (200) may be implemented by hardware, firmware, software, or a combination thereof.
- the processor (130) and the server (200) may include computing devices such as a workstation computer, a desktop computer, a laptop computer, a tablet computer, etc.
- the processor (130) and the server (200) may also 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 processor (130) and the server (200) may be implemented by, for example, a general-purpose computer or application-specific hardware such as a DSP (Digital Signal Processor), an FPGA (Field Programmable Gate Array), and an ASIC (Application Specific Integrated Circuit).
- DSP Digital Signal Processor
- FPGA Field Programmable Gate Array
- ASIC Application Specific Integrated Circuit
- the secondary battery manufacturing system (1000) may implement a plug-in architecture with APIs for data acquisition to provide plug-and-play connectivity of sensors, measuring instruments, and testers. Accordingly, resources at a specific process step and a specific site may be easily transferred to other processes and other sites, or new resources may be easily introduced to each process step and site.
- FIG. 13 is a diagram for explaining how a secondary battery manufacturing system (1000) according to exemplary embodiments manages data.
- FIG. 14 is a diagram showing the roll map data illustrated in FIG. 13.
- the secondary battery manufacturing system (1000) can be configured to map and manage roll map data (1030) collected based on an electrode manufacturing process (1010) and data (1060a, 1060b, 1060c, 1060d, 1060e, 1070a, 1070b, 1070c, 1070d, 1070e, 1080a, 1080b, 1080c, 1080d, 1080e) collected based on an assembly process (1040).
- 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), the coating process (1020b), the rolling process (1020c), and the slitting process (1020d) included in the electrode manufacturing process (1010).
- 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).
- the secondary battery manufacturing system (1000) may be configured to obtain 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., 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 with the jelly roll ID (1060a).
- JR jelly roll ID
- process data (1070a) of the winding process (1050a) e.g., P10 process of FIG. 1
- inspection data (1080a) e.g., P10 process of FIG.
- the secondary battery manufacturing system (1000) can be configured to map a jelly roll ID (1060a) with roll map data (1030). Accordingly, tracking of roll map data (1030), process data (1070a), and inspection data (1080a) can be provided based on the jelly roll ID (1060a).
- the secondary battery manufacturing system (1000) may be configured to obtain 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 with the carrier ID (1060b).
- a carrier movement process (1050b) e.g., P30, P40 processes of FIG. 1
- the secondary battery manufacturing system (1000) can 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) can be provided based on at least one of the jelly roll ID (1060a) and the carrier ID (1060b).
- the secondary battery manufacturing system (1000) may be configured to obtain 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., 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 with the can ID (1060c).
- a can ID (1060c) of a cell case (CC) process data (1070c) of the can insertion process (1050c)
- inspection data (1080c) based on a can insertion process (1050c) (e.g., P50 process of FIG. 1) included in an assembly process (1040).
- the process data (1070c) and the inspection data (1080c) may be mapped with the can ID (1060c).
- the secondary battery manufacturing system (1000) can 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) can be provided based on at least one of the jelly roll ID (1060a), the carrier ID (1060b), and the can ID (1060c).
- the secondary battery manufacturing system (1000) may be configured to obtain 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).
- tracking of 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), the carrier ID (1060b), and the can ID (1060c) without separate ID matching.
- the secondary battery manufacturing system (1000) may be configured to obtain 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).
- a cleaning/inspection process (1050e) e.g., processes P150 to P180 of FIG. 1
- the process data (1070e) and the inspection data (1080e) may be mapped with the battery cell ID (1060e).
- the secondary battery manufacturing system (1000) can 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) can 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).
- FIG. 15 is a flowchart illustrating a method for managing cell tracking data (CTDc) according to exemplary embodiments.
- FIG. 16 is a diagram for explaining a method for managing cell tracking data (CTDc) according to exemplary embodiments. More specifically, FIG. 16 illustrates a portion of cell tracking data (CTDc) including a jelly roll ID.
- FIG. 17 is a diagram for explaining a method for managing cell tracking data (CTDc) according to exemplary embodiments. More specifically, FIG. 17 shows a portion of cell tracking data (CTDc) including a CAN ID.
- restoration of an unrecognized jelly roll ID and an unrecognized can ID can be performed by a server (200).
- the server (200) can include logic for restoration of an unrecognized jelly roll ID and an unrecognized can ID.
- the logic can operate based on a management cycle of preset cell tracking data (CTDc).
- the unrecognized ID restoration logic can include a request (query) to retrieve and/or load a portion of the cell tracking data (CTDc) containing the unrecognized jelly roll ID or the unrecognized can ID from the database of the server (200).
- the restoration of the cell tracking data may include restoration of an unrecognized jelly roll ID from the cell tracking data (CTDc) collected from P50 or restoration of an unrecognized can ID from the cell tracking data (CTDc) collected from P50.
- an unrecognized jelly roll ID of cell tracking data can be restored based on a jelly roll ID temporally neighboring the unrecognized ID.
- the unrecognized jelly roll ID can be restored based on a jelly roll ID preceding the unrecognized jelly roll ID.
- the unrecognized jelly roll ID can be restored based on a jelly roll ID subsequent to the unrecognized jelly roll ID.
- the unrecognized jelly roll ID can be restored based on a jelly roll ID preceding the unrecognized jelly roll ID and a preceding jelly roll ID subsequent to the unrecognized jelly roll ID.
- an unrecognized jelly roll ID and a jelly roll ID are temporally neighbors means that there is no jelly roll ID matched at 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 ID of the unrecognized jelly roll ID can be referred to as a temporal neighbor.
- the jelly roll ID can be generated based on the positive lot ID, the positive count, the tray ID, and the tray coordinates.
- the last four symbols in the jelly roll ID represent the row coordinates and the column coordinates on the tray (20).
- Other symbols in the jelly roll ID can represent the positive lot ID, the positive count, and the tray ID.
- 'A396Nca0003CC1D' highlighted in shade in the table of FIG. 14 can have a different format from the jelly roll ID and can be an unrecognized jelly roll ID.
- the 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).
- 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).
- the jelly rolls (JR) are arranged in an 18 ⁇ 18 matrix on the tray (20), as can be seen in FIG.
- 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'.
- restoration of an unrecognized jelly roll ID may include changing, among the 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.
- restoration of an unrecognized jelly roll ID may include changing, among the 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).
- restoration of an unrecognized jelly roll ID may include changing, among the 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).
- restoration of an unrecognized CAN ID of cell tracking data may include restoring the unrecognized CAN ID based on a CAN ID that is temporally adjacent to the unrecognized CAN ID.
- the unrecognized CAN ID may be restored based on a CAN ID preceding the unrecognized CAN ID.
- the unrecognized CAN ID may be restored based on a CAN ID that follows the unrecognized CAN ID.
- 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.
- the cell cases (CC) are arranged in a matrix on the can tray and are sequentially introduced 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 represent the order in which the cell cases (CC) are introduced into the sub-facility (110c).
- can ID 'L1D8P030330T04' may succeed can ID 'L1D8P030330T03'
- can ID 'L1D8P030330T05' may succeed can ID 'L1D8P030330T04'
- can ID 'L1D8P030330T06' may succeed can ID 'L1D8P030330T05'.
- 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.
- the last two symbols of the can ID may represent the column coordinates on the can tray.
- the cell cases (CC) on the can tray may be arranged in a 17 ⁇ 18 matrix. Referring to FIG.
- the unrecognized can ID 'AD8Wo600005RQX' can be restored based on the preceding can ID 'L1D8P030330T0J' and/or the subsequent can ID 'L1D8P030330T1L'.
- the cell cases (CC) on the can tray can be arranged in a 17 ⁇ 18 matrix, and 17 cans can be input into the sub-facility (110c).
- 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'.
- the cell tracking data (CTDc) of P50 includes matching of jelly roll ID and can ID, and is important for linking preceding historical data and succeeding historical data.
- unrecognized jelly roll ID and unrecognized can ID can be restored based on the rules of jelly roll ID and can ID of the cell tracking data (CTDc), and the traceability disconnection is prevented, so that the reliability of secondary battery manufacturing can be improved.
- FIG. 18 is a flowchart illustrating a method for managing cell tracking data according to exemplary embodiments.
- FIG. 19 is a diagram illustrating a method for managing cell tracking data according to exemplary embodiments.
- FIG. 20 is a diagram illustrating a method for managing cell tracking data according to exemplary embodiments.
- a restoration data set for restoring an unrecognized can ID of the cell tracking data collected from the controller (113c) may include cell tracking data (CTDc) of the sub-facility (110c) (i.e., the jelly roll insertion facility) collected from the controller (113c) and cell tracking data (CTDd) collected from the sub-facility (110c) (i.e., the tab welding facility) collected from the controller (113d).
- CCDc cell tracking data
- CTDd cell tracking data collected from the sub-facility collected from the controller (113c)
- 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) can be included in the restored data set.
- a restoration data set for restoring an unrecognized can ID of the cell tracking data collected from the controller (113n) may include cell tracking data (CTDn) of the sub-facility (110n) (i.e., the internal resistance inspection facility) collected from the controller (113n) and cell tracking data (CTDm) of the sub-facility (110m) collected from the controller (113m) (i.e., the lot marking facility).
- CTDn cell tracking data
- CTDm cell tracking data
- a restoration data set for restoring an unrecognized can ID of the cell tracking data (CTDn) collected from the controller (113n) is illustrated in FIG. 19.
- the restoration of the cell tracking data may include restoration of an unrecognized can ID in the cell tracking data (CTDc) or restoration of an unrecognized can ID in the cell tracking data (CTDn) collected in P180.
- the unrecognized ID 'AD5Go600007nsZ' of the cell tracking data (CTDc) of the facility (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-facility (110d) (i.e., the tab welding facility) by the controller (113d), and is not included in the cell tracking data of the facility (110c). Accordingly, the unrecognized ID 'AD5Go600007nsZ' in the cell tracking data (CTDc) of the facility (110c) can be restored to the can ID 'D1D4K0201204AC'.
- a can ID of a preceding order in the cell tracking data (CTDn) of the facility (110n) may be matched to a preceding order in the cell tracking data (CTDm) of the facility (110m) (i.e., the lot ID marking facility), and a can ID of a subsequent order in the cell tracking data (CTDn) of the facility (110n) may be matched to a subsequent order in the cell tracking data (CTDm) of the facility (110m).
- 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 'D1D2K020120B0F', which is between the CAN ID 'D1D2K020120B1F' and the CAN ID 'D1D2K020120AOL' in the cell tracking data of the equipment (110m).
- FIG. 21 is a flowchart illustrating a method for managing cell tracking data according to exemplary embodiments.
- 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.
- the method of FIG. 21 can be used, like the method of FIG. 18, when an unrecognized can ID of the cell tracking data cannot be restored based on a data set for restoration.
- the cell tracking data (CTDi) of a previous process such as a sub-process of P130, can be used to restore the unrecognized can ID of the cell tracking data (CTDn).
- CCDn 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 the first and second restoration data windows (W1, W2) centered on the unrecognized can ID is required.
- FIGS. 23 to 28 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.
- the secondary battery manufacturing system (1000) can obtain a cell ID corresponding to a semi-finished cell.
- 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).
- the semi-finished cell may include various types of semi-finished cells manufactured during the manufacturing process by the secondary battery manufacturing system (1000).
- 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.
- 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.
- 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 the holder ID based on cell tracking data (CTDa, CTDb, CTDc, CTDd, CTDe, CTDf, CTDg, CTDh, CTDi, CTDj, CTDm, CTDn).
- CTDa, CTDb, CTDc, CTDd, CTDe CTDf, CTDg, CTDh, CTDi, CTDj, CTDm, CTDn.
- the holder may include various types of holders in which semi-finished cells are placed during a manufacturing process by the secondary battery manufacturing system (1000).
- the holder 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 may be a configuration in which a jelly roll is inserted in a specific sub-process.
- the holder in the case of a manufacturing process of a pouch-type battery, 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 process 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 electrode sheets of unit cells during an 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.
- the secondary battery manufacturing system (1000) can match the cell ID obtained in P510 and the holder ID obtained in P520.
- FIGS. 24 to 28 to 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 a secondary battery manufacturing process by a secondary battery manufacturing system (1000) is a can-type battery manufacturing process.
- a secondary battery manufacturing process by a secondary battery manufacturing system (1000) is a can-type battery manufacturing process.
- 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.
- FIG. 24 is a flowchart illustrating a method for managing cell tracking data according to exemplary embodiments.
- 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 the steps may be changed, or the steps may be merged.
- the secondary battery manufacturing system (1000) can obtain a jelly roll ID corresponding to the jelly roll based on the first sub-process.
- the first sub-process may be the P30 process of FIG. 1 among the manufacturing processes by the secondary battery manufacturing system (1000).
- the secondary battery manufacturing system (1000) can load the electrode lot ID and electrode count of the jelly roll.
- the electrode count can indicate the order in which the jelly roll was manufactured in the winder equipment.
- the secondary battery manufacturing system (1000) can load the electrode lot ID and the electrode count of the jelly roll by triggering the tray ID identification of P710.
- the secondary battery manufacturing system (1000) can load the positive electrode lot ID and the positive electrode count from a server such as an MES.
- the secondary battery manufacturing system (1000) can also load the negative electrode lot ID and the negative electrode count from a server such as an MES.
- 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.
- the secondary battery manufacturing system (1000) can generate a jelly roll ID based on the tray ID identified at 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 at P720, the electrode count, and the tray coordinates determined at P730, in addition to the tray ID identified at P710.
- 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.
- the secondary battery manufacturing system (1000) can match the jelly roll ID generated in P740 and the first carrier ID identified in P750.
- 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.
- 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 the steps may be changed, or the steps may be merged.
- 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.
- P750 of FIG. 23 may be a step of identifying the first carrier ID among the first sub-processes
- P810 may be a step of identifying the first carrier ID among the second sub-processes.
- the secondary battery manufacturing system (1000) can identify the second carrier ID by detecting the code object of the second carrier (115a).
- the identified first carrier ID can be matched with another second carrier ID whose time difference is within the threshold time value.
- the secondary battery manufacturing system (1000) can store the matching between the jelly roll ID by P760 of FIG. 25 and the first carrier ID. 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, such as P630 of FIG. 24, using the first carrier ID as a medium.
- the carrier ID e.g., the second carrier ID
- FIG. 27 is a flowchart illustrating a method for managing cell tracking data according to exemplary embodiments.
- 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 the steps may be changed, or the steps may be merged.
- 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.
- 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.
- the third sub-process can be the P50 process of FIG. 1 among the manufacturing processes by the secondary battery manufacturing system (1000).
- the secondary battery manufacturing system (1000) can match the jelly roll ID obtained at P910 and 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 through FIG. 28, which will be described later.
- FIG. 28 is a flowchart for explaining a method for managing cell tracking data according to exemplary embodiments. More specifically, FIG. 28 is a flowchart for explaining a method for managing cell tracking data in the third sub-process described in FIG. 27 by the secondary battery manufacturing system (1000).
- 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 the steps may be changed, or the steps may be merged.
- 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.
- P830 of FIG. 26 may be a step of identifying the second carrier ID during the second sub-process
- P1010 may be a step of identifying the second carrier ID during the third sub-process.
- 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.
- the secondary battery manufacturing system (1000) can match the second carrier ID identified in P1010 and the can ID identified in P1020.
- 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 in P1010 and the time at which the can ID is identified in 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.
- the identified second carrier ID can be matched with another can ID whose time difference is within the threshold time value.
- 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, such as P930 of FIG. 27, by using the second carrier ID as a medium.
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Abstract
Description
Claims (29)
- 미인식 젤리 롤 아이디 및 상기 미인식 젤리 롤 아이디에 이웃한 젤리 롤 아이디를 포함하는 셀 추적 데이터를 로딩하는 단계로서, 상기 젤리 롤 아이디는 양극, 음극 및 분리막의 권취 구조인 젤리 롤의 구분에 사용되고; 및상기 젤리 롤 아이디에 기초하여 상기 미인식 젤리 롤 아이디를 복원하는 단계를 포함하는 셀 추적 데이터를 관리하는 방법.
- 제1항에 있어서,상기 젤리 롤 아이디는 상기 미인식 젤리 롤 아이디에 선행하는 것을 특징으로 하는 셀 추적 데이터를 관리하는 방법.
- 제1항에 있어서,상기 젤리 롤 아이디는 상기 미인식 젤리 롤 아이디에 후속하는 것을 특징으로 하는 셀 추적 데이터를 관리하는 방법.
- 제1항에 있어서,상기 젤리 롤은 이차 전지의 조립 공정에 투입되고, 및상기 젤리 롤 아이디는 상기 젤리 롤의 투입 순서를 나타내는 기호를 포함하며, 및상기 미인식 젤리 롤 아이디는 상기 젤리 롤 아이디의 상기 투입 순서를 나타내는 상기 기호를 변경한 값으로 복원되는 것을 특징으로 하는 셀 추적 데이터를 관리하는 방법.
- 제4항에 있어서,상기 기호는 앞선 순서를 지시하도록 변경되는 것을 특징으로 하는 셀 추적 데이터를 관리하는 방법.
- 제4항에 있어서,상기 기호는 후속하는 순서를 지시하도록 변경되는 것을 특징으로 하는 셀 추적 데이터를 관리하는 방법.
- 미인식 캔 아이디 및 상기 미인식 캔 아이디에 이웃한 캔 아이디를 포함하는 셀 추적 데이터를 로딩하는 단계로서, 상기 캔 아이디는 양극, 음극 및 분리막의 권취 구조인 젤리 롤이 삽입되는 셀 케이스의 구분에 사용되고; 및상기 미인식 캔 아이디를 상기 캔 아이디에 기초하여 복원하는 단계를 포함하되,상기 캔 아이디는 상기 셀 케이스의 데이터 매트릭스의 독출에 의해 결정되고, 및상기 미인식 캔 아이디는 상기 데이터 매트릭스의 상기 독출의 실패에 의해 결정되는 것을 특징으로 하는 셀 추적 데이터를 관리하는 방법.
- 제7항에 있어서,상기 캔 아이디는 상기 미인식 캔 아이디에 선행하는 것을 특징으로 하는 셀 추적 데이터를 관리하는 방법.
- 제7항에 있어서,상기 캔 아이디는 상기 미인식 캔 아이디에 후속하는 것을 특징으로 하는 셀 추적 데이터를 관리하는 방법.
- 제7항에 있어서,상기 캔은 이차 전지의 조립 공정에 투입되고, 및상기 캔 아이디는 상기 셀 케이스의 투입 순서를 나타내는 기호를 포함하며, 및상기 미인식 캔 아이디는 상기 캔 아이디의 상기 투입 순서를 나타내는 상기 기호를 변경한 값으로 복원되는 것을 특징으로 하는 셀 추적 데이터를 관리하는 방법.
- 제10항에 있어서,상기 기호는 앞선 순서를 지시하도록 변경되는 것을 특징으로 하는 셀 추적 데이터를 관리하는 방법.
- 제10항에 있어서,상기 기호는 후속하는 순서를 지시하도록 변경되는 것을 특징으로 하는 셀 추적 데이터를 관리하는 방법.
- 제1 셀 추적 데이터 및 제2 셀 추적 데이터를 포함하는 복원용 데이터 세트를 로딩하는 단계; 및상기 복원용 데이터 세트에 기초하여 상기 제1 셀 추적 데이터의 미인식 캔 아이디를 복원하는 단계를 포함하되,상기 제1 셀 추적 데이터는 배터리 셀의 조립 공정의 제1 서브 공정을 수행하도록 구성된 제1 서브 설비로부터 수집되고,상기 제2 셀 추적 데이터는 상기 배터리 셀의 상기 조립 공정의 제2 서브 공정을 수행하도록 구성된 제2 서브 설비로부터 수집되며,상기 제1 셀 추적 데이터 및 상기 제2 셀 추적 데이터는 복수의 캔 아이디들을 포함하고,상기 캔 아이디는 양극, 음극 및 분리막의 권취 구조인 젤리 롤이 삽입되는 셀 케이스의 구분에 사용되며,상기 캔 아이디는 상기 셀 케이스의 데이터 매트릭스의 독출에 의해 결정되고, 및상기 미인식 캔 아이디는 상기 데이터 매트릭스의 상기 독출의 실패에 의해 결정되는 것을 특징으로 하는 셀 추적 데이터를 관리하는 방법.
- 제13항에 있어서,상기 제2 서브 공정은 상기 제1 서브 공정이 수행된 후에 수행되는 것을 특징으로 하는 셀 추적 데이터를 관리하는 방법.
- 제13항에 있어서,상기 제2 서브 공정은 상기 제1 서브 공정이 수행되기 전에 수행되는 것을 특징으로 하는 셀 추적 데이터를 관리하는 방법.
- 제13항에 있어서,상기 복수의 캔 아이디들은 상기 미인식 캔 아이디에 선행하는 제1 캔 아이디 및 상기 미인식 캔 아이디에 후속하는 제2 캔 아이디를 포함하고, 및상기 미인식 캔 아이디는 상기 제1 캔 아이디 및 상기 제2 캔 아이디 사이의 상기 제2 셀 추적 데이터의 부분에 기초하여 복원되는 것을 특징으로 하는 셀 추적 데이터를 관리하는 방법.
- 제16항에 있어서,상기 미인식 캔 아이디는 상기 제2 셀 추적 데이터의 상기 복수의 캔 아이들 중 상기 제1 캔 아이디 및 상기 제2 캔 아이디 사이에 있는 것들 중 어느 하나로 복원되는 것을 특징으로 하는 셀 추적 데이터를 관리하는 방법.
- 제16항에 있어서,상기 미인식 캔 아이디는 상기 제1 캔 아이디 및 상기 제2 캔 아이디 중 어느 하나에 기초하여 복원되는 것을 특징으로 하는 셀 추적 데이터를 관리하는 방법.
- 제1 셀 추적 데이터 및 제2 셀 추적 데이터를 포함하는 복원용 데이터 세트를 로딩하는 단계; 및상기 제1 셀 추적 데이터의 미인식 캔 아이디를 복원하는 단계를 포함하되,상기 제1 셀 추적 데이터는 배터리 셀의 조립 공정의 제1 서브 공정을 수행하도록 구성된 제1 서브 설비로부터 수집되고,상기 제2 셀 추적 데이터는 상기 배터리 셀의 상기 조립 공정의 제2 서브 공정을 수행하도록 구성된 제2 서브 설비로부터 수집되며,상기 제1 셀 추적 데이터 및 상기 제2 셀 추적 데이터는 복수의 캔 아이디들을 포함하고,상기 캔 아이디는 양극, 음극 및 분리막의 권취 구조인 젤리 롤 및 상기 젤리 롤이 삽입되는 셀 케이스를 포함하는 배터리 셀의 구분에 사용되며,상기 캔 아이디는 상기 셀 케이스의 데이터 매트릭스의 독출에 의해 결정되고, 및상기 미인식 캔 아이디는 상기 데이터 매트릭스의 상기 독출의 실패에 의해 결정되는 것을 특징으로 하는 셀 추적 데이터를 관리하는 방법.
- 제19항에 있어서,상기 제2 서브 공정은 상기 제1 서브 공정이 수행된 후에 수행되는 것을 특징으로 하는 셀 추적 데이터를 관리하는 방법.
- 제19항에 있어서,상기 제2 서브 공정은 상기 제1 서브 공정이 수행되기 전에 수행되는 것을 특징으로 하는 셀 추적 데이터를 관리하는 방법.
- 제19항에 있어서,상기 복수의 캔 아이디들은 상기 미인식 캔 아이디에 선행하는 제1 캔 아이디 및 상기 미인식 캔 아이디에 후속하는 제2 캔 아이디를 포함하고, 및상기 미인식 캔 아이디는 상기 제1 캔 아이디 및 상기 제2 캔 아이디 사이의 상기 제2 셀 추적 데이터의 부분에 기초하여 복원되는 것을 특징으로 하는 셀 추적 데이터를 관리하는 방법.
- 제22항에 있어서,상기 미인식 캔 아이디는 상기 제2 셀 추적 데이터의 상기 복수의 로트 아이들 중 상기 제1 캔 아이디 및 상기 제2 캔 아이디 사이에 있는 것으로 복원되는 것을 특징으로 하는 셀 추적 데이터를 관리하는 방법.
- 제1 셀 추적 데이터에 기초하여 제1 복원용 데이터 윈도우를 구성하고, 제2 셀 추적 데이터에 기초하여 제2 복원용 데이터 윈도우를 구성하는 단계; 및제2 복원용 데이터 윈도우에 기초하여 상기 제1 셀 추적 데이터의 미인식 캔 아이디를 복원하는 단계를 포함하되,상기 제1 셀 추적 데이터는 배터리 셀의 조립 공정의 제1 서브 공정을 수행하도록 구성된 제1 서브 설비로부터 수집되고,상기 제2 셀 추적 데이터는 상기 배터리 셀의 상기 조립 공정의 제2 서브 공정을 수행하도록 구성된 제2 서브 설비로부터 수집되며,상기 제1 셀 추적 데이터 및 상기 제2 셀 추적 데이터는 복수의 캔 아이디들을 포함하고,상기 캔 아이디는 양극, 음극 및 분리막의 권취 구조인 젤리 롤 및 상기 젤리 롤이 삽입되는 셀 케이스를 포함하는 배터리 셀의 구분에 사용되며, 및상기 미인식 캔 아이디는 상기 복수의 캔 아이디들의 결정 실패시 생성되는 것을 특징으로 하는 셀 추적 데이터를 관리하는 방법.
- 제24항에 있어서,상기 제2 서브 공정은 상기 제1 서브 공정이 수행된 후에 수행되는 것을 특징으로 하는 셀 추적 데이터를 관리하는 방법.
- 제24항에 있어서,상기 제2 서브 공정은 상기 제1 서브 공정이 수행되기 전에 수행되는 것을 특징으로 하는 셀 추적 데이터를 관리하는 방법.
- 제24항에 있어서,상기 제1 복원용 데이터 윈도우는 상기 복수의 캔 아이디들 중 상기 제1 복원용 데이터 윈도우에 포함된 것들 중 첫번째 것인 제1 캔 아이디 및 상기 복수의 캔 아이디들 중 상기 제1 복원용 데이터 윈도우에 포함된 것들 중 마지막 것인 제2 캔 아이디를 포함하고, 및상기 복수의 캔 아이디들 중 상기 제2 복원용 데이터 윈도우는 상기 제1 캔 아이디 및 상기 제2 캔 아이디 사이의 것들을 포함하는 것을 특징으로 하는 셀 추적 데이터를 관리하는 방법.
- 제27항에 있어서,상기 제1 셀 추적 데이터의 미인식 캔 아이디는 상기 복수의 캔 아이디들 중 상기 제2 복원용 데이터 윈도우에 포함된 것들과 상기 제1 셀 추적 데이터를 매칭에 기초하여 복원되는 것을 특징으로 하는 셀 추적 데이터를 관리하는 방법.
- 제27항에 있어서,상기 제1 셀 추적 데이터의 미인식 캔 아이디는 상기 복수의 캔 아이디들 중 상기 제2 복원용 데이터 윈도우에 포함된 것들 중 상기 제1 셀 추적 데이터에 없는 것에 기초하여 복원되는 것을 특징으로 하는 셀 추적 데이터를 관리하는 방법.
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| KR1020240195585A KR102896056B1 (ko) | 2024-01-12 | 2024-12-24 | 이차 전지 제조 시스템 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060064271A1 (en) * | 2004-09-22 | 2006-03-23 | Shih-Tsung Liang | Method and system of semiconductor fabrication fault analysis |
| KR20080097249A (ko) * | 2006-12-22 | 2008-11-05 | 오기태 | 식별코드를 이용한 콘텐츠 재생 방법 |
| KR20160023389A (ko) * | 2014-08-22 | 2016-03-03 | 주식회사 엘지화학 | 이차 전지 |
| CN111709763A (zh) * | 2020-05-21 | 2020-09-25 | 合肥国轩高科动力能源有限公司 | 一种锂电池生产数据的追溯方法 |
| KR20230025288A (ko) * | 2021-08-13 | 2023-02-21 | 주식회사 엘지에너지솔루션 | 전극 위치 추적시스템 |
| KR20240005395A (ko) | 2022-07-05 | 2024-01-12 | 주식회사 엘지화학 | 폐플라스틱 처리 공정 |
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2025
- 2025-01-10 WO PCT/KR2025/000646 patent/WO2025150985A1/ko active Pending
- 2025-01-10 CN CN202580003361.8A patent/CN121399759A/zh active Pending
- 2025-01-10 EP EP25739145.8A patent/EP4715948A1/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060064271A1 (en) * | 2004-09-22 | 2006-03-23 | Shih-Tsung Liang | Method and system of semiconductor fabrication fault analysis |
| KR20080097249A (ko) * | 2006-12-22 | 2008-11-05 | 오기태 | 식별코드를 이용한 콘텐츠 재생 방법 |
| KR20160023389A (ko) * | 2014-08-22 | 2016-03-03 | 주식회사 엘지화학 | 이차 전지 |
| CN111709763A (zh) * | 2020-05-21 | 2020-09-25 | 合肥国轩高科动力能源有限公司 | 一种锂电池生产数据的追溯方法 |
| KR20230025288A (ko) * | 2021-08-13 | 2023-02-21 | 주식회사 엘지에너지솔루션 | 전극 위치 추적시스템 |
| KR20240005395A (ko) | 2022-07-05 | 2024-01-12 | 주식회사 엘지화학 | 폐플라스틱 처리 공정 |
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