Cold pressing station determination method, apparatus and device, and storage medium

Abstract

The present application discloses a cold pressing station determination method, apparatus and device, and a storage medium. The method comprises: acquiring a detection result of a cell treated in a cold pressing process; when the detection result is that the cell has a defect, acquiring a cold pressing identifier corresponding to a cell identifier of the cell, wherein the cold pressing identifier is used for positioning a cold pressing station in the cold pressing process; and on the basis of the cold pressing identifier, determining a cold pressing station to be maintained in the cold pressing process. When the detection result of the cell is that the cell has a defect, the cold pressing identifier corresponding to the cell identifier of the cell is acquired, and a cold pressing device to be maintained in the cold pressing process is determined on the basis of the cold pressing identifier, so that the cold pressing station needing to be maintained can be accurately positioned, reducing the time spent on maintenance, improving the production line efficiency.

Description

Method, device, equipment and storage medium for determining cold pressing station

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on August 17, 2023, with application number 202311035977.2 and invention name “Cold Pressing Station Determination Method, Device, Equipment and Storage Medium”, all contents of which are incorporated by reference into the application. Technical Field

[0002] The present application relates to the field of battery technology, and in particular to a method, device, equipment and storage medium for determining a cold pressing station. Background Art

[0003] Currently, after the battery cells have undergone the cold pressing process, they need to be inspected for defects. If defects are detected in the battery cells, they will be placed in the defective product slot and the abnormal situation will be fed back to the process engineer. The process engineer will judge the abnormality on site and analyze the specific cause, and conduct a comprehensive cleaning of the upper and lower press plates of all stations of the cold press. Since the cold press corresponds to a large number of cold pressing stations, cleaning takes a long time, affecting the production efficiency of the production line. Technical issues

[0004] The main purpose of this application is to provide a method, device, equipment and storage medium for determining a cold pressing station, aiming to solve the technical problem in the prior art that the maintenance time of the cold pressing station is long, resulting in reduced production line efficiency. Technical Solutions

[0005] In a first aspect, an embodiment of the present application provides a method for determining a cold pressing station, the method comprising the following steps:

[0006] Obtain test results of battery cells that have undergone the cold pressing process;

[0007] When the detection result shows that the battery cell is defective, obtaining a cold pressing mark corresponding to the battery cell mark of the battery cell, wherein the cold pressing mark is used to locate a cold pressing station in the cold pressing process;

[0008] According to the cold pressing identification, the cold pressing station to be maintained in the cold pressing process is determined.

[0009] In this embodiment, when there are defects in the battery cells processed by the cold pressing process, a cold pressing mark corresponding to the battery cell mark is obtained, and the cold pressing equipment to be maintained in the cold pressing process is determined according to the cold pressing mark. The cold pressing station that needs maintenance can be accurately located, thereby reducing the time spent on maintenance and improving production line efficiency.

[0010] In some embodiments, when the detection result indicates that the battery cell is defective, obtaining a cold pressing mark corresponding to the battery cell mark of the battery cell includes:

[0011] If the detection result shows that the battery cell is defective, obtaining a battery cell identification of the battery cell;

[0012] A cold pressing identification corresponding to the battery cell identification is searched in a target database, where the battery cell identification and the corresponding cold pressing identification are pre-stored in the target database.

[0013] In this embodiment, when the inspection result of the battery cell is that the battery cell is defective, the cold pressing identification corresponding to the battery cell identification is queried in the target database according to the battery cell identification of the battery cell, and the battery cell identification and the corresponding cold pressing identification are pre-stored in the target database. When a battery cell fault is subsequently detected, the corresponding cold pressing identification can be directly obtained from the target database, thereby improving the positioning efficiency of the cold pressing station to be maintained.

[0014] In some embodiments, querying the target database for a cold pressing identifier corresponding to the battery cell identifier includes:

[0015] Calling the information system interface through the battery cell identification;

[0016] The cold pressing mark corresponding to the battery cell mark is queried from the database of the production information management system through the information system interface.

[0017] This embodiment calls the information system interface through the battery cell identification, and queries the corresponding cold pressing identification from the database of the production information management system through the information system interface. It can obtain the corresponding cold pressing identification according to the cold pressing identification of the defective battery cell, thereby accurately locating the cold pressing equipment to be maintained, further improving the positioning efficiency of the cold pressing equipment to be maintained.

[0018] In some embodiments, determining the cold pressing station to be maintained in the cold pressing process according to the cold pressing mark includes: obtaining the number of defective battery cells corresponding to the cold pressing mark;

[0019] According to the number of defective battery cells and the cold pressing identification, a cold pressing station to be maintained in the cold pressing process is determined.

[0020] In this embodiment, the number of defective battery cells corresponding to the cold pressing identification is obtained, and the cold pressing station to be maintained in the cold pressing process is determined based on the number of defective battery cells and the cold pressing identification, which can reduce the probability of false triggering of the positioning of the cold pressing station to be maintained due to abnormal interference.

[0021] In some embodiments, obtaining the number of defective cells corresponding to the cold pressing mark includes:

[0022] Obtain the number of defective battery cells corresponding to the cold pressing mark within a preset historical period.

[0023] In some embodiments, determining the cold pressing station to be maintained in the cold pressing process according to the number of defective battery cells and the cold pressing identifier includes:

[0024] When the number of defective battery cells is greater than a preset defect threshold, the cold pressing station corresponding to the cold pressing identifier in the cold pressing process is determined to be a cold pressing station to be maintained.

[0025] In this embodiment, when the defective battery cell data is greater than the preset defect threshold, the cold pressing station corresponding to the cold pressing identifier in the cold pressing process is determined to be the cold pressing station to be maintained. By setting the preset defect threshold, the probability of false triggering of the cold pressing station positioning caused by abnormal interference can be reduced, and the accuracy of the positioning of the cold pressing station to be maintained is improved.

[0026] In some embodiments, after determining the cold pressing station to be maintained in the cold pressing process according to the cold pressing identification, the method further includes:

[0027] Output maintenance prompt information according to the cold pressing station to be maintained.

[0028] This embodiment can promptly remind relevant personnel to perform maintenance on the cold pressing station in a timely manner based on the maintenance prompt information of the cold pressing station data to be maintained, thereby reducing the time consumed in cold pressing station maintenance and improving the production efficiency of the production line.

[0029] In some embodiments, after outputting maintenance prompt information according to the cold press station to be maintained, the method further includes:

[0030] When the maintenance of the cold pressing station to be maintained is completed, obtaining a maintenance log of the cold pressing station to be maintained;

[0031] Determine workstation abnormality information based on the maintenance log.

[0032] In this embodiment, when the maintenance of the cold pressing station to be maintained is completed, the maintenance log is obtained, and the abnormal information of the station is determined based on the maintenance log. The cause and formation pattern of the debris can be determined to provide support for subsequent improvements.

[0033] In some embodiments, determining workstation abnormality information according to the maintenance log includes:

[0034] The causes and patterns of debris formation are summarized according to the contents of the maintenance log, and workstation abnormality information is determined based on the causes and patterns.

[0035] In some embodiments, the cold pressing mark includes a cold pressing station code;

[0036] The step of determining the cold pressing station to be maintained in the cold pressing process according to the cold pressing identification includes:

[0037] Determining the cold pressing station code according to the cold pressing mark;

[0038] The cold pressing station corresponding to the cold pressing station code in the cold pressing process is determined to be the cold pressing station to be maintained.

[0039] This embodiment determines that the cold pressing station corresponding to the cold pressing station code in the cold pressing process is the cold pressing station to be maintained, and can accurately locate the cold pressing station to be maintained according to the cold pressing station code, thereby shortening the time spent on equipment maintenance and improving product production efficiency.

[0040] In some embodiments, the cold pressing identification includes a cold pressing equipment code and a cold pressing station code;

[0041] The step of determining the cold pressing station to be maintained in the cold pressing process according to the cold pressing identification includes:

[0042] Determine the cold pressing equipment code and the cold pressing station code according to the cold pressing identification;

[0043] Determining the cold pressing equipment corresponding to the cold pressing equipment code in the cold pressing process, and determining a plurality of cold pressing stations corresponding to the cold pressing equipment;

[0044] The cold pressing station corresponding to the cold pressing station code among the multiple cold pressing stations is determined to be the cold pressing station to be maintained.

[0045] This embodiment determines the corresponding cold pressing equipment according to the cold pressing equipment code, determines multiple cold pressing workstations corresponding to the cold pressing equipment, and determines the cold pressing workstation corresponding to the cold pressing workstation code among the multiple cold pressing workstations as the cold pressing workstation to be maintained. The cold pressing equipment can be determined according to the cold pressing equipment code first, and then the cold pressing workstation to be maintained can be determined from the multiple cold pressing workstations corresponding to the cold pressing equipment according to the cold pressing workstation code, thereby improving the accuracy of cold pressing workstation positioning.

[0046] In a second aspect, an embodiment of the present application further provides a cold pressing station determination system, wherein the cold pressing station determination system includes:

[0047] Detection device, used to detect bare battery cells entering the cold press for cold pressing;

[0048] The lower computer is used to control the robot to place the bare battery cell into any cold pressing station for cold pressing;

[0049] The production information management system is used to record the cell identification and corresponding cold pressing data and cold pressing identification of each battery cell, and store the above data in the database of the production information management system;

[0050] The welding system is used to carry out ultrasonic welding and adapter welding on the battery cells processed by the cold pressing process, and then enter the polyester film wrapping process;

[0051] The detection device is also used to obtain the detection results of the battery cells processed by the cold pressing process.

[0052] In some embodiments, the detection device is further used to perform large-surface inspection on the battery cells that have been processed by the cold pressing process. If large-surface pressure damage is detected on the battery cells, the battery cells are determined to be defective and the battery cells with large-surface pressure damage are placed in the defective product slot. In some embodiments, the cold pressing station determination system further includes: a host computer;

[0053] The host computer is used to call the production information management system interface through Web Services, search for the corresponding cold pressing identification in the MES system database according to the cell identification of the battery cell, count the number of defective batteries corresponding to the same cold pressing station identification, and when the number of defective batteries corresponding to the cold pressing station identification is greater than a preset defect threshold, determine that the cold pressing station corresponding to the cold pressing station identification in the cold pressing process is the cold pressing station to be maintained.

[0054] In some embodiments, the host computer is further used to display maintenance prompt information in the information display window, and the maintenance prompt information is used to remind engineers to clean the cold pressing station to be maintained according to the maintenance prompt information.

[0055] In a third aspect, an embodiment of the present application further provides a cold pressing station determination device, the device comprising:

[0056] An acquisition module, used to obtain the test results of the battery cells processed by the cold pressing process;

[0057] The acquisition module is further configured to, when the detection result indicates that the battery cell is defective, acquire a cold pressing mark corresponding to the battery cell mark of the battery cell, wherein the cold pressing mark is used to locate a cold pressing station in the cold pressing process;

[0058] A determination module is used to determine the cold pressing station to be maintained in the cold pressing process according to the cold pressing identifier.

[0059] In a fourth aspect, an embodiment of the present application further proposes a cold pressing work station determination device, which includes: a memory, a processor, and a cold pressing work station determination program stored in the memory and executable on the processor, wherein the cold pressing work station determination program is configured to implement the steps of the cold pressing work station determination method described above.

[0060] In a fifth aspect, an embodiment of the present application further proposes a storage medium, on which a cold pressing station determination program is stored. When the cold pressing station determination program is executed by a processor, the steps of the cold pressing station determination method described above are implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] FIG1 is a flow chart of an embodiment of a method for determining a cold pressing station of the present application;

[0062] FIG2 is a flow chart of another embodiment of the method for determining a cold pressing station of the present application;

[0063] FIG3 is a flow chart of another embodiment of the method for determining a cold pressing station of the present application;

[0064] FIG4 is a flow chart of another embodiment of the method for determining a cold pressing station of the present application;

[0065] FIG5 is a schematic diagram of network communication for positioning a cold pressing station in accordance with an embodiment of a method for determining a cold pressing station of the present application;

[0066] FIG6 is a schematic diagram of the overall detection process of the cold pressing station determination method of the present application;

[0067] FIG7 is a structural block diagram of an embodiment of a device for determining a cold pressing station of the present application;

[0068] FIG8 is a structural diagram of a cold pressing station determination device in a hardware operating environment according to an embodiment of the present application.

[0069] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. Modes for Carrying Out the Invention

[0070] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0071] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0072] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0073] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0074] At present, after the battery cells have undergone the cold pressing process, they need to be inspected for defects. If defects are detected in the battery cells, the defective battery cells will be placed in the defective product slot. The operator will report the defect to the process engineer. The process engineer will judge the abnormality on site, analyze the cause of the abnormality, and conduct a comprehensive cleaning of the upper and lower press plates of all cold pressing stations of the cold press. Since the cold press corresponds to a large number of cold pressing stations, cleaning takes a long time, affecting the overall rhythm of the production line, low efficiency, and resulting in reduced production efficiency of the production line. Therefore, how to improve the production efficiency of the production line has become a technical problem that needs to be solved urgently.

[0075] To address the above technical issues, embodiments of the present application propose a method, apparatus, device, and storage medium for determining a cold pressing station. This method uses a detection device to perform defect detection on battery cells that have undergone a cold pressing process. If a defect is detected in the battery cell, a cold pressing identifier corresponding to the battery cell identifier is obtained. This cold pressing identifier is used to locate the cold pressing station in the cold pressing process. The cold pressing station to be maintained in the cold pressing process is determined based on the cold pressing identifier.

[0076] In a first aspect, an embodiment of the present application provides a method for determining a cold pressing station. Referring to FIG. 1 , FIG. 1 is a flow chart of an embodiment of the method for determining a cold pressing station.

[0077] In this embodiment, the method for determining the cold pressing station includes the following steps:

[0078] Step S1: Obtaining the test results of the battery cell that has undergone the cold pressing process.

[0079] The execution subject of this embodiment can be a computing service device with data processing, network communication and program execution functions, or an electronic device capable of implementing the above functions, a host computer, etc. The following describes this embodiment and the following embodiments using the host computer as an example.

[0080] In this embodiment, the inspection results of the battery cells processed by the cold pressing process are obtained. If the inspection results show that the battery cells are defective, the corresponding cold pressing identification for locating the cold pressing station in the cold pressing process is obtained based on the battery cell identification of the battery cells, and the cold pressing station to be maintained in the cold pressing process is determined based on the cold pressing identification.

[0081] The test results may be the results of defect detection on the battery cells, including but not limited to the presence of defects in the battery cells, the absence of defects in the battery cells, the defect level of the battery cells, etc.; the battery cells that have undergone the cold pressing process may be subjected to defect detection by means of a detection device, and the detection device may be a device that performs defect detection on the battery cells, and the detection equipment may include but is not limited to: visual inspection equipment, surface defect detection equipment, and CCD (Charge coupled device) detection equipment, etc.; the cold pressing process may be a process for cold pressing the battery cells, and the battery cells that enter the cold pressing process may be bare battery cells; defect detection may be detecting whether the battery cells that have undergone the cold pressing process have appearance defects.

[0082] Step S2: when the detection result shows that the battery cell is defective, obtaining a cold pressing mark corresponding to the battery cell mark of the battery cell, wherein the cold pressing mark is used to locate the cold pressing station in the cold pressing process.

[0083] The battery cell identification can be an identification that can uniquely identify the battery cell; the cold pressing identification can be an identification that can uniquely identify the cold pressing station in the cold pressing process; the battery cell identification and the cold pressing identification are stored in a corresponding relationship, and the corresponding cold pressing identification can be obtained according to the battery cell identification; each battery cell identification corresponds to a cold pressing identification, and one cold pressing identification can correspond to multiple battery cell identifications.

[0084] Step S3: determining the cold pressing station to be maintained in the cold pressing process according to the cold pressing identification.

[0085] The cold pressing station to be maintained may be a cold pressing station that needs maintenance, and the maintenance of the cold pressing station to be maintained includes but is not limited to cleaning maintenance, accessories maintenance, etc.

[0086] In one example, the host computer obtains the inspection results of the bare battery cell that has been processed by the cold pressing process. If the inspection result shows that the battery cell is defective, the host computer obtains the cold pressing mark corresponding to the battery cell mark of the defective battery cell, and determines that the cold pressing station corresponding to the cold pressing mark in the cold pressing process is the cold pressing station to be maintained.

[0087] In another example, for example: the battery cell identification is represented by D, the cold pressing identification is represented by L, the battery cell identification D and the cold pressing identification L are stored correspondingly, and the correspondence between the battery cell identification D and the cold pressing identification L is: D1, D2 and D3 correspond to L1, D4 corresponds to L2, D5, D6, D7 and D8 correspond to L3, D9 corresponds to L4, D10, D11, D12 correspond to L5, and the detection equipment performs defect detection on the battery cell A that has undergone the cold pressing process, and detects that the battery cell A has a large pit defect, and arranges the battery cell A into the defective product slot; the upper computer obtains the detection result of the battery cell A, which is that the battery cell A has a defect, and the battery cell identification D3 of the battery cell A is obtained, then the corresponding cold pressing identification L1 is obtained according to the battery cell identification D3, and it is determined that the cold pressing station corresponding to L1 in the cold pressing process is the cold pressing station to be maintained.

[0088] In this embodiment, when the inspection result of the battery cell that has undergone cold pressing is that the battery cell is defective, a cold pressing mark corresponding to the battery cell mark is obtained, and the cold pressing equipment to be maintained in the cold pressing process is determined based on the cold pressing mark. The cold pressing station that needs maintenance can be accurately located, thereby reducing the time spent on maintenance and improving production line efficiency.

[0089] In some embodiments, when the detection result is that the battery cell is defective, obtaining the cold pressing mark corresponding to the battery cell identification of the battery cell includes: when the detection result is that the battery cell is defective, obtaining the battery cell identification of the battery cell; querying the cold pressing mark corresponding to the battery cell identification in the target database, the battery cell identification and the corresponding cold pressing mark are pre-stored in the target database.

[0090] In this embodiment, when the inspection result of the battery cell that has undergone cold pressing is that the battery cell is defective, the battery cell identification is obtained, the cold pressing identification corresponding to the battery cell identification is searched in the target database, and the cold pressing station to be maintained in the cold pressing process is determined according to the cold pressing identification.

[0091] The target database may be a database that can be used to store battery cell identifications and cold pressing identifications in correspondence.

[0092] In an example, for example: the cell identifier is represented by D, the cold pressing identifier is represented by L, the cell identifier D and the cold pressing identifier L are stored correspondingly in the target database, and the correspondence between the cell identifier D and the cold pressing identifier L is: D1, D2 and D3 correspond to L1, D4 corresponds to L2, D5, D6, D7 and D8 correspond to L3, D9 corresponds to L4, D10, D11, D12 correspond to L5, the detection equipment performs defect detection on the cell B that has undergone the cold pressing process, detects that the cell B has a side defect, determines that the cell B is a defective cell, and arranges the cell B into the defective product slot; the upper computer obtains the detection result of the cell B as a defective cell, assuming that the cell identifier of the cell B is D5, then the cold pressing identifier queried from the target database according to the cell identifier D5 is L3, thereby determining that the cold pressing station corresponding to L3 in the cold pressing process is the cold pressing station to be maintained.

[0093] In this embodiment, when the detection result is that the battery cell is defective, the cold pressing identification corresponding to the battery cell identification is queried in the target database based on the battery cell identification of the battery cell, and the battery cell identification and the corresponding cold pressing identification are pre-stored in the target database. When a battery cell fault is subsequently detected, the corresponding cold pressing identification can be directly obtained from the target database, thereby improving the positioning efficiency of the cold pressing station to be maintained.

[0094] In some embodiments, querying the target database for the cold pressing identification corresponding to the battery cell identification includes: calling the information system interface through the battery cell identification; and querying the cold pressing identification corresponding to the battery cell identification from the database of the production information management system through the information system interface.

[0095] In this embodiment, defect detection is performed on the battery cells that have undergone the cold pressing process by means of detection equipment. If defects are detected in the battery cells, the cell identification of the battery cells is obtained, the information system interface is called through the cell identification, and the cold pressing identification corresponding to the cell identification is queried from the database of the production information management system through the information system interface.

[0096] The production information management system can be a production management system used to execute workshop activities. The production information management system can provide enterprises with comprehensive management of production planning and scheduling, production processes, quality, equipment, etc., and is used to track and record the production conversion from raw materials to finished products. The production information management system includes but is not limited to the manufacturing execution system (Manufacturing Execution System, MES) of the manufacturing enterprise's production process, the production data and equipment status information collection and analysis management system (Manufacturing Data Collection & Status Management, MDC) and the manufacturing process data document management system (Product Data Management, PDM); the information system interface can be an interface for querying data in the database of the production information management system.

[0097] In one example, for example, the production information management system is an MES system. The MES system database stores cell identifiers and corresponding cold pressing identifiers. Assume that the cell identifier is D and the cold pressing identifier is L. The cell identifier of the cell requiring defect inspection is D2. The correspondence between the cell identifier D and the cold pressing identifier L stored in the MES system database is as follows: D1, D2, and D3 correspond to L1, D4 corresponds to L2, D5, D6, D7, and D8 correspond to L3, D9 corresponds to L4, and D10, D11, and D12 correspond to L5. The inspection equipment inspects the cell G that has undergone the cold pressing process and detects that the cell G has a defect. The host computer obtains the inspection result that the cell G has a defect. The MES system interface is called based on the cell identifier D2 of the cell G. The cold pressing identifier corresponding to D2 is found in the database through the MES system interface, and is determined to be L1. The cold pressing station corresponding to L1 in the cold pressing process is determined to be the cold pressing station to be maintained.

[0098] This embodiment calls the information system interface through the battery cell identification, and queries the corresponding cold pressing identification from the database of the production information management system through the information system interface. It can obtain the corresponding cold pressing identification according to the cold pressing identification of the defective battery cell, thereby accurately locating the cold pressing equipment to be maintained, further improving the positioning efficiency of the cold pressing equipment to be maintained.

[0099] In some embodiments, referring to FIG. 2 , in this embodiment, step S3 includes:

[0100] Step S31: Obtain the number of defective cells corresponding to the cold pressing mark.

[0101] In this embodiment, the number of defective battery cells corresponding to the cold pressing identification is obtained, and the cold pressing station to be maintained in the cold pressing process is determined according to the number of defective battery cells and the cold pressing identification.

[0102] The number of defective battery cells may be the total number of defective battery cells detected that correspond to the cold pressing mark.

[0103] Step S32: determining the cold pressing station to be maintained in the cold pressing process according to the number of defective battery cells and the cold pressing identification.

[0104] As an implementation method, the number of defective battery cells corresponding to the cold pressing identification within a preset historical period is obtained, and the cold pressing workstation to be maintained in the cold pressing process is determined based on the number of defective battery cells and the cold pressing identification.

[0105] In one example, a detection device performs defect detection on battery cells that have undergone a cold pressing process, and a host computer obtains the detection result of the detection device. When the detection result shows that the battery cell is defective, a cold pressing mark corresponding to the battery cell mark for locating the cold pressing station in the cold pressing process is obtained, and the number of defective battery cells corresponding to the cold pressing mark is obtained. The cold pressing station to be maintained in the cold pressing process is determined based on the number of defective battery cells and the cold pressing mark.

[0106] In another example, the detection equipment performs defect detection on the battery cells that have been processed by the cold pressing process. The host computer obtains the detection result of the detection equipment. When the detection result shows that the battery cell is defective, the host computer obtains the cell identification of the battery cell, searches the target database for the cold pressing identification corresponding to the cell identification, counts the number of defective battery cells corresponding to the cold pressing identification, and determines the cold pressing station to be maintained in the cold pressing process based on the number of defective battery cells and the cold pressing identification.

[0107] In another example, the inspection equipment performs defect detection on the battery cells that have been processed by the cold pressing process. If a large-surface pit defect is detected in the battery cell, the inspection result of the battery cell is determined to be defective. The upper computer obtains the inspection result of the inspection equipment that the battery cell is defective, and calls the MES system interface through the battery cell identification of the battery cell. The cold pressing identification corresponding to the battery cell identification is queried from the MES system database through the MES system interface, and the number of defective battery cells corresponding to the cold pressing identification is obtained. The cold pressing station to be maintained in the cold pressing process is located according to the number of defective battery cells and the battery cell identification.

[0108] In this embodiment, the number of defective cells corresponding to the cold pressing identifier is obtained, and the cold pressing station to be maintained in the cold pressing process is determined based on the number of defective cells and the cold pressing identifier. This can reduce the probability of abnormal interference causing the location of the cold pressing station to be maintained to be falsely triggered. In some embodiments, step S32 includes: if the number of defective cells is greater than a preset defect threshold, determining that the cold pressing station in the cold pressing process corresponding to the cold pressing identifier is a cold pressing station to be maintained.

[0109] The preset defect threshold can be a pre-set threshold for the number of defective battery cells. If the number of defective battery cells is less than or equal to the preset defect threshold, it is determined that the cold pressing station corresponding to the cold pressing mark does not need maintenance; if the number of defective battery cells is greater than the preset defect threshold, it is determined that the cold pressing station corresponding to the cold pressing mark in the cold pressing process is a cold pressing station to be maintained.

[0110] In an example, for example, the preset defect threshold is 3, and the production information management system is an MES system. The database of the MES system stores the cell identification and the cold pressing identification corresponding to the cell identification. Assume that the cell identification is identified by D and the cold pressing identification is identified by L. The cell identification of the cell that needs to be detected for defects is D10. The correspondence between the cell identification D and the cold pressing identification L stored in the database of the MES system is: D1, D2 and D3 correspond to L1, D4 corresponds to L2, D5, D6, D7 and D8 correspond to L3, D9 corresponds to L4, D10, D11, D12, D13, D14 and D15 correspond to L5. The detection equipment performs defect detection on the cell H that has undergone the cold pressing process. If the detection equipment detects that the cell H is defective, the detection result of the cell H is that the cell is defective. The detection result of the cell H obtained by the host computer is that the cell is defective, and the MES is called according to the cell identification D10. System interface, through the MES system interface, finds the cold pressing identifier L5 corresponding to D10 from the database, and obtains that the number of defective cells corresponding to the cold pressing identifier L5 is 0, then updates the number of defective cells corresponding to the cold pressing identifier L5 to 1, and continues to perform defect detection on the cells after cold pressing. If it is detected that the cell is defective, the cell identifier L5 found in the database of the MES system according to the cell identifier D12 is updated to 2, and continues to perform defect detection on the cells after cold pressing, and updates the number of defective cells corresponding to the cell identifier L5. If, after a certain defect detection, the number of defective cells corresponding to the cell identifier L5 is 4, which is greater than the preset defect threshold of 3, the cold pressing station corresponding to L5 in the cold pressing process is determined to be the cold pressing station to be maintained, where the preset defect threshold can be set to other values ​​according to the specific scenario, for example, 4, 6, 7, etc., which is not limited in this embodiment.

[0111] In this embodiment, when the defective battery cell data is greater than the preset defect threshold, the cold pressing station corresponding to the cold pressing identifier in the cold pressing process is determined to be the cold pressing station to be maintained. By setting the preset defect threshold, the probability of false triggering of the cold pressing station positioning caused by abnormal interference can be reduced, and the accuracy of the positioning of the cold pressing station to be maintained is improved.

[0112] In some embodiments, referring to FIG. 3 , after step S3, the method further includes:

[0113] Step S4: Outputting maintenance prompt information according to the cold pressing station to be maintained.

[0114] The maintenance reminder information may be a reminder information for performing maintenance on the maintenance station.

[0115] In one example, defect detection is performed on battery cells that have been processed by a cold pressing process using detection equipment. When defects are detected in the battery cells, a cold pressing identification corresponding to the cell identification of the battery cells is obtained for locating the cold pressing station in the cold pressing process, and the cold pressing station in the cold pressing process corresponding to the cold pressing identification is determined to be the cold pressing station to be maintained, and maintenance prompt information is output based on the cold pressing station to be maintained.

[0116] This embodiment can promptly remind relevant personnel to perform maintenance on the cold pressing station in a timely manner based on the maintenance prompt information of the cold pressing station data to be maintained, thereby reducing the time consumed in cold pressing station maintenance and improving the production efficiency of the production line.

[0117] In some embodiments, referring to FIG. 4 , after step S4, the following steps are further included:

[0118] Step S5: When the maintenance of the cold pressing station to be maintained is completed, a maintenance log of the cold pressing station to be maintained is obtained.

[0119] The maintenance log can be a log of maintenance of the maintenance station. The maintenance log can be a log recorded by an engineer based on the maintenance content, or it can be an automatically generated log. This embodiment does not limit this. The content of the maintenance log includes but is not limited to the cold press number, cold press station code, maintenance time, cleaning time, abnormality type, etc. The abnormality type includes but is not limited to ceramic powder, carbon powder, etc.

[0120] Step S6: Determine workstation abnormality information based on the maintenance log.

[0121] The workstation abnormality information may be information about abnormalities occurring in the cold pressing workstation to be maintained. Specifically, the causes and patterns of debris formation may be summarized based on the contents in the maintenance log, thereby obtaining the workstation abnormality information of the corresponding cold pressing workstation.

[0122] In one example, a bare cell enters a cold press for cold pressing. A robotic arm places the bare cell into any cold pressing station for cold pressing. The MES system records the cell ID, corresponding cold pressing data, and cold pressing ID for each cell, and stores the data in the MES database. The cold-pressed cell undergoes ultrasonic welding and adapter welding before entering the Mylar wrapping process for large-surface inspection. If large-surface damage is detected, the cell is deemed defective and placed in a defective bin. The host computer calls the MES system interface via Web Services, searches the MES database for the corresponding cold pressing ID based on the cell ID, and identifies the cold pressing station in the cold pressing process corresponding to the cold pressing ID as a station to be maintained. Maintenance reminder information for the station to be maintained is output, prompting engineers to perform maintenance on the station to be maintained. Upon completion of maintenance on the station to be maintained, a cleaning log for the station to be maintained is obtained and analyzed to obtain station abnormality information, including the causes and patterns of debris formation at the station to be maintained.

[0123] In another example, bare cells enter a cold press for cold pressing, and a robot places the bare cells into any cold pressing station for cold pressing. The MES system records the cell identification, corresponding cold pressing data, and cold pressing identification of each cell, and stores the data in the MES system database. After cold pressing, the cells undergo ultrasonic welding and adapter welding, and enter the Mylar wrapping process to begin large-surface inspection before Mylar wrapping. If large-surface crushing damage is detected on the cells, the cells are determined to be defective and are placed in the defective product slot. The host computer calls the MES system interface through Web Services, searches the MES system database for the corresponding cold pressing identification based on the cell identification of the cells, and counts the number of defective cells corresponding to the same cold pressing station identification. If the number of defective cells corresponding to the cold pressing station identification is greater than a preset defect threshold, the cold pressing station corresponding to the cold pressing station identification in the cold pressing process is determined to be a cold pressing station to be maintained, and a maintenance prompt message is displayed in the information display window of the CCD software, so that engineers can clean the cold pressing station to be maintained according to the maintenance prompt message.

[0124] In this embodiment, when the maintenance of the cold pressing station to be maintained is completed, the maintenance log is obtained, and the abnormal information of the station is determined based on the maintenance log. The cause and formation pattern of the debris can be determined to provide support for subsequent improvements.

[0125] In some embodiments, the cold pressing identification includes a cold pressing station code; determining the cold pressing station to be maintained in the cold pressing process based on the cold pressing identification includes: determining that the cold pressing station in the cold pressing process corresponding to the cold pressing station code is the cold pressing station to be maintained.

[0126] In this embodiment, the inspection results of the battery cells processed by the cold pressing process are obtained. When the inspection result shows that the battery cells are defective, the cold pressing identification corresponding to the cell identification of the battery cells is obtained, the cold pressing station code is determined based on the cold pressing identification, and the cold pressing station in the cold pressing process corresponding to the cold pressing station code is determined as the cold pressing station to be maintained.

[0127] The cold pressing station code may be a code that can identify the cold pressing station.

[0128] In one example, for example: the battery cell identification can be a battery cell code. When the upper computer obtains the inspection result of the battery cell that the battery cell is defective, it obtains the cold pressing identification corresponding to the battery cell code of the battery cell, determines the cold pressing station code according to the cold pressing identification, and counts the number of defective batteries corresponding to the cold pressing station code. If the number of defective batteries is greater than the preset defect threshold, it is determined that the cold pressing station corresponding to the cold pressing station code in the cold pressing process is the cold pressing station to be maintained.

[0129] This embodiment determines that the cold pressing station corresponding to the cold pressing station code in the cold pressing process is the cold pressing station to be maintained, and can accurately locate the cold pressing station to be maintained according to the cold pressing station code, thereby shortening the time spent on equipment maintenance and improving product production efficiency.

[0130] In some embodiments, the cold pressing identification includes a cold pressing equipment code and a cold pressing station code;

[0131] Determining the cold pressing station to be maintained in the cold pressing process based on the cold pressing identification includes: determining the cold pressing equipment code and the cold pressing station code based on the cold pressing identification; determining the cold pressing equipment corresponding to the cold pressing equipment code in the cold pressing process, and determining multiple cold pressing stations corresponding to the cold pressing equipment; determining the cold pressing station corresponding to the cold pressing station code among the multiple cold pressing stations as the cold pressing station to be maintained.

[0132] In this embodiment, a test result of a battery cell that has been processed through a cold pressing process is obtained. If the test result indicates that the battery cell is defective, a cold pressing identification corresponding to the battery cell identification of the battery cell is obtained, a cold pressing equipment code and a cold pressing station code are determined based on the cold pressing identification, the corresponding cold pressing equipment in the cold pressing process is determined based on the cold pressing equipment code, multiple cold pressing stations corresponding to the cold pressing equipment are determined, and the cold pressing station corresponding to the cold pressing station code among the multiple cold pressing stations is determined as the cold pressing station to be maintained. The cold pressing equipment code can be a code used to identify the cold pressing equipment.

[0133] In one example, referring to FIG5 , FIG5 is a schematic diagram of network communication for positioning the cold pressing station. Assume that there are two cold pressing equipments in the cold pressing process, wherein module A and module B correspond to a cold pressing equipment M, module C and module D correspond to a cold pressing equipment N, and each module has 5 cold pressing stations. Module A includes cold pressing stations A1, A2, A3, A4 and A5, module B includes cold pressing stations B1, B2, B3, B4 and B5, module C includes cold pressing stations C1, C2, C3, C4 and C5, and module D includes cold pressing stations D1, D2, D3, D4 and D5, there are 20 cold pressing stations in total, and there are two inspection stations before wrapping polyester film. After the bare battery cell enters the cold pressing equipment, the robot puts the bare battery cell into any cold pressing station for cold pressing treatment. After the cold pressing treatment is completed, the MES system R records the cold pressing data, cold pressing equipment code and cold pressing station code corresponding to the battery cell code of each battery cell, and stores the recorded data in the database. The battery cell after cold pressing undergoes ultrasonic welding process and converter sheet welding process, and passes through the inspection equipment S before wrapping Mylar. During CCD large-surface and side appearance inspection, assuming that the inspection equipment S detects a large-surface pit defect in a cell, the cell is judged to be defective. The host computer T calls the MES system interface based on the cell code, queries the MES system database, obtains the cold press equipment code and cold press station code corresponding to the cell code, and counts the number of defective cells corresponding to the same cold press equipment code and cold press station code. If the number of defective cells exceeds the preset defect threshold, the cold press station to be maintained is located based on the cold press equipment code and cold press station code. For example, if the inspection equipment detects a large-surface pit defect in a cell, and the host computer T finds the cold press equipment code M and the cold press station code A3 in the MES system R database based on the cell code, it determines whether the number of defective cells corresponding to A3 exceeds the preset defect threshold. If so, A3 is determined to be the cold press equipment to be maintained. If not, the host computer T continues to count the number of defective cells corresponding to the cold press equipment code. If the number of defective cells corresponding to the cold press equipment code exceeds the preset defect threshold, the cold press station corresponding to the cold press equipment code is determined to be the cold press station to be maintained.

[0134] This embodiment determines the corresponding cold pressing equipment according to the cold pressing equipment code, determines multiple cold pressing workstations corresponding to the cold pressing equipment, and determines the cold pressing workstation corresponding to the cold pressing workstation code among the multiple cold pressing workstations as the cold pressing workstation to be maintained. The cold pressing equipment can be determined according to the cold pressing equipment code first, and then the cold pressing workstation to be maintained can be determined from the multiple cold pressing workstations corresponding to the cold pressing equipment according to the cold pressing workstation code, thereby improving the accuracy of cold pressing workstation positioning.

[0135] In some embodiments, referring to FIG. 6 , FIG. 6 is a schematic diagram of a complete detection process of the cold pressing station determination method of the present application. In a specific implementation, the detection process may include:

[0136] Step S01: After the bare battery cell enters the A / B line cold press, the robot places the bare battery cell into any workstation;

[0137] Step S02: Record the cell identification and corresponding cold pressing data and cold pressing identification of each cell according to the MES system, and store the cold pressing data and cold pressing identification in the database of the MES system. After cold pressing for 10 seconds, perform the ultrasonic welding process and the adapter welding process;

[0138] Step S03: Enter the Mylar wrapping process to start loading the combined core and scanning the core code;

[0139] Step S04: After the cells are assembled, a CCD large-surface and side-surface appearance inspection is performed. If a large-surface pit defect is detected on the cell, the cell is determined to be defective and is placed in a defective bin.

[0140] Step S05: The host computer calls the MES system interface through Web Services and the cell identification of the bare cell;

[0141] Step S06: query the cold pressing mark corresponding to the battery cell mark from the MES system database according to the MES system interface;

[0142] Step S071, obtaining the number of defective cells corresponding to the cold pressing mark;

[0143] Step S08: comparing the number of defective cells with a preset defect threshold;

[0144] Step S091: If the number of defective cells is less than or equal to the preset defect threshold, it is determined that the cold pressing station corresponding to the cold pressing mark does not need maintenance;

[0145] Step S092: If the number of defective cells is greater than a preset defect threshold, the cold pressing station corresponding to the cold pressing identifier in the cold pressing process is determined to be a cold pressing station to be maintained;

[0146] Alternatively, after the cold pressing identifier is queried, step S072 is executed to determine the cold pressing equipment code and the cold pressing station code according to the cold pressing identifier, determine the corresponding cold pressing equipment in the cold pressing process according to the cold pressing equipment code, determine multiple cold pressing stations corresponding to the cold pressing equipment, and determine the cold pressing station corresponding to the cold pressing station code among the multiple cold pressing stations as the cold pressing station to be maintained;

[0147] Alternatively, after determining the cold press station to be maintained, executing step S101, outputting maintenance prompt information of the cold press station to be maintained, and determining the maintenance completion status of the cold press station to be maintained;

[0148] Step S111: When maintenance is completed, the causes and patterns of debris formation are summarized according to the contents of the maintenance log, thereby obtaining abnormality information of the corresponding cold pressing station;

[0149] Alternatively, after determining the cold press station to be maintained, step S102 is executed to display maintenance prompt information in the information display window of the CCD software, so that the engineer can clean the cold press station to be maintained according to the maintenance prompt information;

[0150] Step S112: Obtain the maintenance log filled in by the engineer based on the cleaning situation.

[0151] In a second aspect, referring to FIG. 7 , an embodiment of the present application further provides a cold pressing station determination device, the device comprising:

[0152] An acquisition module 10 is used to obtain the test results of the battery cells processed by the cold pressing process;

[0153] The acquisition module 10 is further configured to, when the detection result indicates that the battery cell is defective, acquire a cold pressing mark corresponding to the battery cell mark of the battery cell, wherein the cold pressing mark is used to locate a cold pressing station in the cold pressing process;

[0154] The determination module 20 is configured to determine the cold pressing station to be maintained in the cold pressing process according to the cold pressing identification.

[0155] In this embodiment, when the inspection result of the battery cell processed by the cold pressing process is that the battery cell is defective, the cold pressing mark corresponding to the battery cell mark is obtained, and the cold pressing equipment to be maintained in the cold pressing process is determined according to the cold pressing mark. The cold pressing station that needs maintenance can be accurately located, thereby reducing the maintenance time and improving the production line efficiency.

[0156] In some embodiments, the acquisition module 10 is also used to obtain the cell identification of the battery cell when the detection result shows that the battery cell is defective; and query the cold pressing identification corresponding to the battery cell identification in the target database, and the battery cell identification and the corresponding cold pressing identification are pre-stored in the target database.

[0157] In some embodiments, the acquisition module 10 is further configured to call an information system interface through the battery cell identification; and query a cold pressing identification corresponding to the battery cell identification from a database of a production information management system through the information system interface.

[0158] In some embodiments, the determination module 20 is further configured to obtain the number of defective battery cells corresponding to the cold pressing identification; and determine the cold pressing station to be maintained in the cold pressing process according to the number of defective battery cells and the cold pressing identification.

[0159] In some embodiments, the determination module 20 is further configured to obtain the number of defective battery cells corresponding to the cold pressing mark within a preset historical period.

[0160] In some embodiments, the determination module 20 is further configured to determine, when the number of defective battery cells is greater than a preset defect threshold, that the cold pressing station corresponding to the cold pressing identifier in the cold pressing process is a cold pressing station to be maintained.

[0161] In some embodiments, the determination module 20 is further configured to output maintenance prompt information according to the cold pressing station to be maintained.

[0162] In some embodiments, the determination module 20 is further configured to obtain a maintenance log of the cold pressing station to be maintained when maintenance of the cold pressing station to be maintained is completed; and determine the abnormality information of the station according to the maintenance log.

[0163] In some embodiments, the determination module 20 is further configured to summarize the causes and patterns of debris formation according to the contents of the maintenance log, and determine workstation abnormality information based on the causes and patterns.

[0164] In some embodiments, the cold pressing identification includes a cold pressing station code, and the determination module 20 is further used to determine the cold pressing station code based on the cold pressing identification; and determine that the cold pressing station corresponding to the cold pressing station code in the cold pressing process is the cold pressing station to be maintained.

[0165] In some embodiments, the cold pressing identification includes a cold pressing equipment code and a cold pressing workstation code; the determination module 20 is also used to determine the cold pressing equipment code and the cold pressing workstation code based on the cold pressing identification; determine the cold pressing equipment corresponding to the cold pressing equipment code in the cold pressing process, and determine multiple cold pressing workstations corresponding to the cold pressing equipment; determine the cold pressing workstation corresponding to the cold pressing workstation code among the multiple cold pressing workstations as the cold pressing workstation to be maintained.

[0166] Other embodiments or specific implementations of the cold pressing station determination device of the present application can refer to the above-mentioned method embodiments and will not be repeated here.

[0167] In a third aspect, referring to FIG8 , an embodiment of the present application further proposes a cold press station determination device, which may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to implement connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the user interface 1003 may optionally include a standard wired interface or a wireless interface. The network interface 1004 may optionally include a standard wired interface or a wireless interface (such as a wireless fidelity (WI-FI) interface). The memory 1005 may be a high-speed random access memory (RAM) or a stable non-volatile memory (NVM), such as a disk storage. The memory 1005 may optionally be a storage device independent of the aforementioned processor 1001.

[0168] Those skilled in the art will understand that the structure shown in FIG. 7 does not constitute a limitation on the cold press station determination device, and may include more or fewer components than shown in the figure, or a combination of certain components, or a different arrangement of components.

[0169] As shown in FIG. 7 , the memory 1005 as a storage medium may include an operating system, a network communication module, a user interface module, and a cold press station determination program.

[0170] In the cold pressing work station determination device shown in Figure 7, the network interface 1004 is mainly used for data communication with the network server; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 can be set in the cold pressing work station determination device, and the cold pressing work station determination device calls the cold pressing work station determination program stored in the memory 1005 through the processor 1001, and executes the cold pressing work station determination method provided in the embodiment of the present application.

[0171] In a fourth aspect, an embodiment of the present application further proposes a storage medium, on which a cold pressing station determination program is stored. When the cold pressing station determination program is executed by a processor, the steps of the cold pressing station determination method described above are implemented.

[0172] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or system. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or system comprising the element.

[0173] The serial numbers of the above embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0174] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as read-only memory / random access memory, magnetic disk, optical disk), and includes a number of instructions for enabling a terminal device (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0175] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A method for determining a cold pressing station, wherein: The method comprises: Obtain the test results of the battery cells that have been processed by the cold pressing process; When the detection result shows that the battery cell has a defect, obtaining a cold pressing mark corresponding to the battery cell mark of the battery cell, wherein the cold pressing mark is used to locate a cold pressing station in the cold pressing process; According to the cold pressing mark, the cold pressing station to be maintained in the cold pressing process is determined.

2. The method of claim 1, wherein: When the detection result indicates that the battery cell is defective, obtaining a cold pressing mark corresponding to the battery cell mark of the battery cell includes: When the detection result shows that the battery cell is defective, obtaining a battery cell identification of the battery cell; A cold pressing mark corresponding to the battery cell mark is searched in a target database, and the battery cell mark and the corresponding cold pressing mark are pre-stored in the target database.

3. The method of claim 2, wherein: The step of searching the target database for a cold pressing mark corresponding to the battery cell mark includes: Calling the information system interface through the battery cell identification; The cold pressing mark corresponding to the battery cell mark is queried from the database of the production information management system through the information system interface.

4. The method according to any one of claims 1 to 3, wherein: Determining the cold pressing station to be maintained in the cold pressing process according to the cold pressing mark includes: Obtaining the number of defective cells corresponding to the cold pressing mark; According to the number of defective battery cells and the cold pressing identification, a cold pressing station to be maintained in the cold pressing process is determined.

5. The method of claim 4, wherein: The obtaining the number of defective cells corresponding to the cold pressing mark includes: Obtain the number of defective battery cells corresponding to the cold pressing mark within a preset historical time period.

6. The method of claim 4, wherein: The step of determining the cold pressing station to be maintained in the cold pressing process according to the number of defective battery cells and the cold pressing identification includes: When the number of defective battery cells is greater than a preset defect threshold, the cold pressing station corresponding to the cold pressing identifier in the cold pressing process is determined to be a cold pressing station to be maintained.

7. The method according to any one of claims 1 to 6, wherein: After determining the cold pressing station to be maintained in the cold pressing process according to the cold pressing mark, the method further includes: Output maintenance prompt information according to the cold pressing station to be maintained.

8. The method of claim 7, wherein: After outputting maintenance prompt information according to the cold pressing station to be maintained, the method further includes: When the maintenance of the cold pressing station to be maintained is completed, obtaining a maintenance log of the cold pressing station to be maintained; The abnormal information of the workstation is determined according to the maintenance log.

9. The method of claim 8, wherein: The determining of abnormal workstation information according to the maintenance log includes: The causes and patterns of debris formation are summarized according to the contents in the maintenance log, and the abnormal information of the workstation is determined based on the causes and patterns.

10. The method according to any one of claims 1 to 9, wherein: The cold pressing mark includes a cold pressing station code; Determining the cold pressing station to be maintained in the cold pressing process according to the cold pressing mark includes: Determine the cold pressing station code according to the cold pressing mark; Determine the cold pressing station in the cold pressing process that corresponds to the cold pressing station code as the cold pressing station to be maintained.

11. The method according to any one of claims 1 to 10, wherein: The cold pressing mark includes a cold pressing equipment code and a cold pressing station code; Determining the cold pressing station to be maintained in the cold pressing process according to the cold pressing mark includes: Determine the cold pressing equipment code and the cold pressing station code according to the cold pressing mark; Determine the cold pressing equipment corresponding to the cold pressing equipment code in the cold pressing process, and determine a plurality of cold pressing stations corresponding to the cold pressing equipment; A cold pressing station among the plurality of cold pressing stations corresponding to the cold pressing station code is determined as a cold pressing station to be maintained.

12. A cold press station determination system, wherein: The cold pressing station determination system comprises: A detection device, used to detect the bare battery cells entering the cold press for cold pressing; The lower computer is used to control the robot to place the bare battery cell into any cold pressing station for cold pressing; The production information management system is used to record the cell identification and corresponding cold pressing data and cold pressing identification of each cell, and store the above data in the database of the production information management system; The welding system is used to carry out ultrasonic welding and adapter welding on the battery cells processed by the cold pressing process, and then enter the polyester film wrapping process; The detection device is also used to obtain the detection results of the battery cells processed by the cold pressing process.

13. The system of claim 12, wherein: The detection device is also used to perform large-surface detection on the battery cells that have been processed by the cold pressing process. If it is detected that the battery cells have large-surface crushing damage, the battery cells are determined to be defective and the battery cells with large-surface crushing damage are placed in the defective product slot.

14. The system of claim 12, wherein: The cold pressing station determination system further includes: a host computer; The host computer is used to call the production information management system interface through Web Services, search for the corresponding cold pressing identification in the database of the MES system according to the cell identification of the battery cell, count the number of defective batteries corresponding to the same cold pressing station identification, and when the number of defective batteries corresponding to the cold pressing station identification is greater than a preset defect threshold, determine that the cold pressing station corresponding to the cold pressing station identification in the cold pressing process is the cold pressing station to be maintained.

15. The system of claim 14, wherein: The host computer is also used to display maintenance prompt information in the information display window, and the maintenance prompt information is used to remind engineers to clean the cold pressing station to be maintained according to the maintenance prompt information.

16. A cold pressing station determination device, wherein: The device comprises: An acquisition module, used to obtain the test results of the battery cells processed by the cold pressing process; The acquisition module is further used to acquire a cold pressing mark corresponding to the cell mark of the cell when the detection result shows that the cell is defective, and the cold pressing mark is used to locate the cold pressing station in the cold pressing process; A determination module is used to determine the cold pressing station to be maintained in the cold pressing process according to the cold pressing mark.

17. A cold press station determination device, wherein: The device comprises: a memory, a processor, and a cold pressing station determination program stored in the memory and executable on the processor, wherein the cold pressing station determination program is configured to implement the steps of the cold pressing station determination method according to any one of claims 1 to 11.

18. A storage medium, wherein: The storage medium stores a cold pressing station determination program, and when the cold pressing station determination program is executed by the processor, the steps of the cold pressing station determination method according to any one of claims 1 to 11 are implemented.

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