Battery manufacturing method and system

Abstract

Embodiments of the present disclosure provide a battery manufacturing method and system. The battery manufacturing method is applied to the battery manufacturing system. The battery manufacturing system comprises: a controller and a production device. The battery manufacturing method comprises: during production of a product by a production device in any process of a battery production line, a controller obtains product information, the production device being a device corresponding to any process in a battery pack production line; and when product information satisfies a product switching condition, the controller controls said production device to switch to a new type of product. In this way, the efficiency with which the entire battery production line switches between types of products is increased.

Description

Battery manufacturing method and system

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure is based on the Chinese patent application with application number 202311268643.X, application date September 28, 2023, and invention name “A battery manufacturing method and system”, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into this disclosure as a reference. Technical Field

[0003] The present disclosure relates to the field of battery technology, and in particular to a battery manufacturing method and system. Background Art

[0004] New energy batteries are being used more and more widely in life and industry. For example, new energy vehicles equipped with batteries have been widely used. In addition, batteries are also being increasingly used in energy storage fields.

[0005] Traditional flexible battery pack manufacturing lines are generally customized and have a strong functional purpose. When the production line needs to adjust the production products, the entire production line needs to be cleared, materials removed and replaced with new materials, equipment clamping carriers replaced, and key points of the robotic equipment readjusted. The entire changeover process needs to be completed while the production line is stopped.

[0006] In the prior art, after each station in a battery pack flexible manufacturing line has completed production of the original product model, each station begins switching fixtures to produce a new product. However, this process results in a long tool switching time, resulting in low changeover efficiency.

[0007] Summary of the Invention

[0008] The embodiments of the present disclosure provide a battery manufacturing method and system, which can improve the conversion efficiency of the entire battery production line.

[0009] The technical solution of the present disclosure is achieved as follows:

[0010] The present disclosure provides a battery manufacturing method, which is applied to a battery manufacturing system. The battery manufacturing system includes a controller and production equipment. The method includes:

[0011] During the process of producing products by production equipment in any process of the battery production line, the controller obtains product information; the production equipment is equipment corresponding to any process in the battery pack production line;

[0012] When the product information meets the product switching condition, the controller controls the production equipment of any process to switch to the production of the new model of product.

[0013] In the above solution, during the process of producing products by the production equipment in any process of the battery production line, the controller obtains product information, including:

[0014] During the production process of products by the production equipment of the first process of the battery production line, the entry and exit verification is performed by the production equipment of the first process to obtain the statistical number of non-duplicate products produced by the production equipment of the first process;

[0015] The non-repetitive statistical quantity of the product is transmitted to the controller through the production equipment of the first process.

[0016] It is understandable that during the production process of the production equipment in the first process of the battery production line, the entry and exit verification of the production equipment in the first process is used to obtain the statistical number of non-repetitive products produced by the production equipment in the first process, which is convenient for subsequent updating of the work order requirement quantity and improving the changeover efficiency of the production line.

[0017] In the above solution, during the process of producing products by the production equipment in any process of the battery production line, the controller obtains product information, including:

[0018] During the process of producing products by the production equipment of the second process of the battery production line, the controller obtains the model information code of the product corresponding to the second process.

[0019] It is understandable that, during the production process of the production equipment in the second step of the battery production line, obtaining the product model information code can facilitate the subsequent switching of the battery production line according to the product model information code, thereby improving the changeover efficiency of the production line.

[0020] In the above solution, the battery production line includes: a battery pack production line and a battery module production line; the first process includes: battery cell loading and module insulation testing in the battery module production line, lower box loading, lower box gluing, automatic module boxing, module tightening, busbar welding, upper cover tightening, airtightness testing, electrical performance testing and module packaging and offline; the battery manufacturing system also includes: production control equipment. The method also includes:

[0021] The work order requirement quantity for the first process is issued through the production control equipment;

[0022] When the product information satisfies the product switching condition, the controller controls the production equipment of any process to switch to the production of the new model product, including:

[0023] If the statistical quantity of the production equipment of the first process is consistent with the quantity required by the work order, triggering a product switching request to the production control device through the controller;

[0024] Responding to the product switching request by the production control device, sending product information of the new model to the controller;

[0025] The controller controls the production equipment of the first process to switch the tooling based on the product information of the new model, so that the production equipment of the first process switches to produce the product of the new model.

[0026] It can be understood that when the statistical number of production equipment in the first process matches the number of work order requirements, a product switching request is triggered to the production control device; the new product model information issued by the production control device in response to the product switching request is received; based on the new product model information, the current production equipment is controlled to switch the work fixture so that the production equipment in the first process can switch to producing the new product model. In this process, because the production equipment in the first process does not wait for the downstream production equipment to complete subsequent production and can directly switch to producing the new product model, the changeover efficiency of the entire battery production line can be improved.

[0027] In the above solution, the production equipment includes: a first tray, on which an electronic label is affixed; the second process includes: at least one of: side gluing of battery cells, large-surface gluing of battery cells, pre-stacking of battery cells, and pressurizing and grouping of battery cells in a battery module production line; the method further includes:

[0028] Writing the product information of the new model into the electronic tag of the first pallet through the controller; the first pallet is the pallet that arrives at the first process for the first time after the production equipment of the first process switches the fixture;

[0029] When the first pallet arrives at a second process downstream of the first process, the controller acquires a model information code of a product during a production process of a production device of the second process.

[0030] It can be understood that the product information of the new model is written into the electronic tag of the first pallet; when the first pallet reaches the second process downstream of the production equipment of the first process, the model information code of the product is obtained during the production process of the production equipment of the second process, which can facilitate the subsequent determination of the switching of the battery production line according to the product model information code, thereby improving the changeover efficiency of the entire battery production line.

[0031] In the above solution, the production equipment further includes: a sensor; the controller obtains the model information code of the product, including:

[0032] The electronic tag of the current pallet arriving at the production equipment of the second process is read by a sensor, or the electronic tag of the first pallet arriving at the production equipment of the second process is read to obtain the model information code of the product;

[0033] The model information code of the product is transmitted to the controller through the production equipment of the second process.

[0034] It can be understood that by reading the electronic tag of the current pallet arriving at the production equipment of the second process, or the electronic tag of the first pallet through the sensor, the product model information code is obtained, which facilitates the subsequent determination of the battery production line switching based on the product model information code, thereby improving the changeover efficiency of the entire battery production line.

[0035] In the above solution, when the product information meets the product switching condition, the controller controls the production equipment of any process to switch to the production of the new model of product, including:

[0036] If the model information code of the product is inconsistent with the historical model information code, the controller controls the production equipment of the second process to switch the fixture so that the second process switches to producing the new model product.

[0037] It can be understood that when the model information code of the product is inconsistent with the historical model information code, the production equipment of the second process is controlled to switch the fixture so that the production equipment of the second process can switch to the production of the new model product. Since the production equipment of the second process does not wait for the downstream production equipment to complete subsequent production, it directly switches to the production of the new model product, which can improve the changeover efficiency of the entire battery production line.

[0038] In the above solution, the method further includes:

[0039] During the production process of products by the production equipment of the first process of the battery production line, the production equipment of the first process is used to perform entry and exit verification to determine the number of defective products of the first process and the number of refurbished products of the first process;

[0040] sending the number of defective products in the first process to the production control device;

[0041] Determining, by the production control device, an updated work order requirement quantity based on the number of defective products in the first process, the number of defective products in the downstream process, the number of refurbished products in the first process, the number of refurbished products in the downstream process, and the work order requirement quantity of the first process;

[0042] transmitting the updated work order requirement quantity to the controller;

[0043] The controller determines whether the updated work order requirement quantity and product information meet the product switching conditions, and controls the production equipment of the first process to switch to the production of the new model product.

[0044] It is understandable that during the production process of the production equipment of the first process of the production process, the number of defective products of the first process and the number of refurbished products of the first process are determined through the entry and exit verification of the production equipment of the first process. The receiving production control device determines the updated number of work order requirements based on the number of defective products of the first process, the number of defective products of the downstream process, the number of refurbished products of the first process, the number of refurbished products of the downstream process, and the number of work order requirements of the production equipment of the first process. According to whether the updated number of work order requirements and product information meet the product switching conditions, the production equipment of the first process is controlled to switch to the production of the new model of products. Since the production equipment of the first process does not wait for the downstream production equipment to complete the subsequent production, it directly switches to the production of the new model of products, which can improve the changeover efficiency of the entire battery production line.

[0045] In the above solution, determining the updated required work order quantity by the production control device based on the number of defective products in the first process, the number of defective products in the downstream process, the number of refurbished products in the first process, the number of refurbished products in the downstream process, and the required work order quantity of the first process includes:

[0046] receiving, through the production control device, the number of defective products of the downstream process and the number of refurbished products of the downstream process sent by the controller;

[0047] The production control device determines the updated work order requirement quantity of the first process based on the work order requirement quantity of the first process, the number of defective products of the first process, the number of defective products of the downstream process, the number of refurbished products of the first process and the number of refurbished products of the downstream process.

[0048] It is understandable that the controller receives the number of defective products of the first process, the number of refurbished products of the first process, the number of defective products of the downstream process, and the number of refurbished products of the downstream process; and determines the updated number of work order requirements for the production equipment of the first process based on the number of work order requirements of the first process, the number of defective products of the first process, the number of defective products of the downstream process, the number of refurbished products of the first process, and the number of refurbished products of the downstream process. The updated number of work order requirements for the production equipment of the first process is sent to the controller, so that the controller controls the production equipment of the first process to switch to the production of the new model of product based on whether the product information meets the product switching condition related to the updated number of work order requirements for the production equipment of the first process, so as to improve the changeover efficiency of the entire battery production line.

[0049] In the above solution, determining the updated required number of work orders for the first process by the production control device based on the required number of work orders for the first process, the number of defective products in the first process, the number of defective products in the downstream process, the number of refurbished products in the first process, and the number of refurbished products in the downstream process includes:

[0050] performing a sum operation on the work order requirement quantity of the first process, the number of defective products of the first process, and the number of defective products of the downstream process by the production control device to obtain a calculation result;

[0051] The production control device performs a difference operation on the calculation result, the number of refurbished products of the first process, and the number of refurbished products of the downstream process to determine the updated work order requirement quantity of the first process.

[0052] It can be understood that the number of work order requirements for the production equipment of the first process, the number of defective products in the first process and the number of defective products in the downstream process are summed to obtain the calculation result, and the difference calculation is performed on the calculation result, the number of refurbished products in the first process and the number of refurbished products in the downstream process to determine the updated number of work order requirements, which can accurately determine the number of products produced and save resources.

[0053] An embodiment of the present disclosure provides a battery manufacturing system, comprising: the battery manufacturing system comprises: at least one controller, at least one production device and a production control device; the production device is a device corresponding to any process in a battery pack production line;

[0054] Each controller is connected to each production equipment; wherein the number of controllers and the number of production equipment are consistent with the number of processes;

[0055] The at least one controller is connected to the production control equipment;

[0056] The at least one production device is configured to use the provided materials to produce products of the respective processes of the battery pack according to the original product model issued by the corresponding controller;

[0057] The production control device is used to send product information to the controller;

[0058] The at least one controller is used to control the production equipment of any process in the battery production line to switch to the production of a new model of product when the product information meets the product switching condition during the production of the product by the production equipment of any process in the battery production line.

[0059] An embodiment of the present disclosure provides a battery manufacturing method, which is applied to a battery manufacturing system. The battery manufacturing system includes: a controller and production equipment. The method includes: in the process of producing products by the production equipment of any process in the battery production line, the controller obtains product information; the production equipment is the equipment corresponding to any process in the battery pack production line; when the product information meets the product switching condition, the controller controls the production equipment of any process to switch to the production of the new model of the product. In the above scheme, since the production equipment of any process in the battery production line starts to switch to the production of the new model of the product when the product information meets the product switching condition, the waste of work-in-progress materials caused by the model switching can be reduced. At the same time, since the production equipment of any process does not have to wait for the downstream production equipment to complete the subsequent production, it directly switches to the production of the new model of the product when the product information meets the product switching condition, which reduces the time for the production equipment of each process to switch tools. Therefore, the changeover efficiency of the entire battery production line can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] The accompanying drawings herein are incorporated into and constitute a part of the specification. These drawings illustrate embodiments consistent with the present disclosure and, together with the specification, serve to illustrate the technical solutions of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure. It is clear that those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0061] The flowcharts shown in the accompanying drawings are for illustrative purposes only and do not necessarily include all contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may be decomposed, while others may be combined or partially combined. Therefore, the actual execution order may vary depending on the actual situation.

[0062] FIG1 is a schematic diagram of an optional process of providing a battery manufacturing method in the related art;

[0063] FIG2 is a first optional flow chart of a battery manufacturing method according to an embodiment of the present disclosure;

[0064] FIG3 is a schematic diagram of an optional production line process of a battery manufacturing method provided in an embodiment of the present disclosure;

[0065] FIG4 is a schematic diagram of a module process according to an embodiment of the present disclosure;

[0066] FIG5 is a second optional flow chart of a battery manufacturing method provided in an embodiment of the present disclosure;

[0067] FIG6 is a schematic diagram of a battery pack process according to an embodiment of the present disclosure;

[0068] FIG7 is a flow chart of an exemplary battery manufacturing method provided in an embodiment of the present disclosure;

[0069] FIG8 is a schematic structural diagram of a battery manufacturing system provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0070] To make the purpose, technical solutions and advantages of the embodiments of the present disclosure more clear, the specific technical solutions of the present disclosure will be further described in detail below in conjunction with the drawings in the embodiments of the present disclosure. The following embodiments are used to illustrate the present disclosure, but are not intended to limit the scope of the present disclosure.

[0071] Unless otherwise defined, all technical and scientific terms used in this disclosure have the same meaning as commonly understood by those skilled in the art in the art of this disclosure. The terms used in this disclosure are only for the purpose of describing the embodiments of this disclosure and are not intended to limit this disclosure.

[0072] Currently, new energy batteries are increasingly being used in everyday life and industry. They are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but are also widely used in electric vehicles like electric bicycles, electric motorcycles, and electric cars, as well as in a variety of fields such as aerospace. As the application of power batteries continues to expand, market demand is also growing.

[0073] In the embodiments of the present disclosure, the battery may be a battery cell (sometimes also referred to as a battery cell), or a battery module or battery pack comprising a plurality of battery cells. A battery cell refers to a basic unit that can realize the mutual conversion of chemical energy and electrical energy, and can be used to make a battery module or battery pack, thereby being used to supply power to electrical devices. A battery cell may be a secondary battery, which refers to a battery cell that can be activated by charging the active material after the battery cell is discharged and can continue to be used. The battery cell may be a lithium-ion battery, a sodium-ion battery, a sodium-lithium-ion battery, a lithium metal battery, a sodium metal battery, a lithium-sulfur battery, a magnesium-ion battery, a nickel-hydrogen battery, a nickel-cadmium battery, a lead-acid battery, etc., and the embodiments of the present disclosure are not limited thereto.

[0074] In the following description, references to “some embodiments,” “this embodiment,” “embodiments of the present disclosure,” and examples, etc., describe a subset of all possible embodiments, but it can be understood that “some embodiments” may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict.

[0075] If similar descriptions of "first / second" appear in the application documents, the following explanation is added. In the following description, the terms "first\second\third" involved are merely used to distinguish similar objects and do not represent a specific order for the objects. It can be understood that "first\second\third" can be interchanged with the specific order or sequence where permitted, so that the embodiments of the present disclosure described herein can be implemented in an order other than that illustrated or described herein.

[0076] The present disclosure provides a battery manufacturing method. FIG1 is a schematic diagram of an optional process flow of a battery manufacturing method provided in the related art. As shown in FIG1 , the existing battery pack production line switching process includes S11-S14:

[0077] S11, the last product of the original model leaves the last process of the production line;

[0078] S12. Clear and recycle the work-in-progress parts of the original model products on the production line;

[0079] S13, switch fixtures in each process of the production line to adapt to new product models;

[0080] S14, the first process of the production line starts to produce the first product of the new model.

[0081] The switching scheme of existing battery production lines is prone to lead to long switching time and waste of work-in-progress materials of the original model products.

[0082] An embodiment of the present disclosure provides a battery manufacturing method. FIG2 is an optional flow chart 1 of a battery manufacturing method provided in an embodiment of the present disclosure, which will be described in conjunction with the steps shown in FIG2 .

[0083] S101. During the process of producing products by production equipment in any process of a battery production line, a controller obtains product information; the production equipment is equipment corresponding to any process in a battery pack production line.

[0084] In some embodiments of the present disclosure, a battery production line is a flexible battery pack manufacturing line; a battery production line includes a battery pack production line and a battery module production line; and a battery production line includes multiple pieces of production equipment. In the embodiments of the present disclosure, the processes corresponding to the production equipment belong to the assembly stage or the pack stage. The battery module production line is the assembly stage, and the battery pack production line is the pack stage, also known as the pack production line.

[0085] In some embodiments of the present disclosure, the production equipment in the PACK segment has an entry and exit verification function, that is, a counting function; among the production equipment in the component segment, only the first and last production equipment have a counting function.

[0086] In some embodiments of the present disclosure, the production equipment of the PACK segment and the production equipment of the component segment are each controlled by a corresponding controller to control product production. The controller can be a programmable logic controller (PLC), or a host computer or an intermediate computer. A programmable logic controller is a digital operation electronic system designed specifically for use in an industrial environment. It uses a programmable memory to store instructions for performing operations such as logical operations, sequential control, timing, counting, and arithmetic operations, and controls various types of mechanical equipment or production processes through digital or analog input and output.

[0087] In some embodiments of the present disclosure, FIG3 is an optional production line flow diagram of a battery manufacturing method provided in an embodiment of the present disclosure. As shown in FIG3 , the processes corresponding to the multiple production equipment belong to the component section (also called the module section) and the battery pack section (i.e., the PACK section). The processes of the PACK section (also known as the battery pack process) include lower box body online 1, lower box body gluing 2, automatic module boxing 3, module tightening 4, busbar welding 5, upper cover tightening 6, airtightness test 7, electrical performance test 8 and module packaging and offline 9; the processes of the component section (also known as the module process) include battery cell loading 10, battery cell side glue 11, battery cell large glue 12, battery cell pre-stacking 13, battery cell pressurization grouping 14 and module insulation test 15. Lower box body online 1, lower box body gluing 2, module automatic box loading 3, module tightening 4, busbar welding 5, upper cover tightening 6, airtightness test 7, electrical performance test 8, module packaging and offline 9, battery cell loading 10 and module insulation test 15 are all controlled by the controller to interact with the production control equipment to control the switching of production of new models of products; battery cell side fixing glue 11, battery cell large fixing glue 12, battery cell pre-stacking 13 and battery cell pressurization and grouping 14 are all controlled by the controller to switch to produce new models of products.

[0088] The production line targeted by the embodiments of the present disclosure may be a battery production line for producing batteries, wherein the battery production line includes a module production line, and the module production line may include production equipment such as: battery cell online, battery cell test and glue application, battery cell large glue application, battery cell pre-stacking, battery cell pressurization grouping, and module insulation testing; in addition, the battery production line may also include: a controller and a production control device (Manufacturing Execution System, MES), wherein the PLC and the MES have a communication connection, or the PLC may have a communication connection with the MES through the host computer for switching production module work orders. The MES system is a production information management system for the workshop execution layer of a manufacturing enterprise. MES can provide enterprises with management modules including manufacturing data management, planning and scheduling management, production scheduling management, inventory management, quality management, human resources management, work center / equipment management, tool and tooling management, procurement management, cost management, project kanban management, production process control, underlying data integration analysis, and upper-level data integration and decomposition, creating a solid, reliable, comprehensive, and feasible manufacturing collaborative management platform.

[0089] FIG4 is a schematic diagram of a module process according to an embodiment of the present disclosure. As shown in FIG4 , the module process may include:

[0090] S1011, battery cells are online;

[0091] Among them, the battery cell online is the first workstation in the module section.

[0092] S1012, scan the battery cell code;

[0093] Among them, the number A of qualified battery cells that can be put into production can be obtained from this process.

[0094] S1013, side adhesive tape;

[0095] S1014, side adhesive testing;

[0096] Among them, the number B of battery cells that fail the inspection can be obtained from this process.

[0097] S1015, battery cell stacking;

[0098] S1016, module pressurization;

[0099] Among them, the number C of modules that fail to meet the requirements during the module pressurization process can be obtained from this process.

[0100] S1017, module scan code.

[0101] Among them, module code scanning is the terminal station of the module section.

[0102] Among them, the battery cell online equipment puts the battery cells online, the battery cell scanning equipment scans the battery cells, the side gluing equipment glues the sides of the battery cells, the battery cell stacking equipment stacks the battery cells, the module pressurizing equipment pressurizes the modules, and the module scanning equipment scans the modules.

[0103] It should be noted that the module in the embodiment of the present disclosure may be a square shell battery cell module, a cylindrical battery cell module, or a soft pack battery cell module, and the embodiment of the present disclosure does not specifically limit this.

[0104] In some embodiments of the present disclosure, the controllers corresponding to the production equipment of the PACK segment can all communicate with the production control device; among the production equipment of the component segment, only the controllers corresponding to the production equipment of the first process (battery cell loading) and the controllers corresponding to the production equipment of the last process (module insulation test) can communicate with the production control device.

[0105] In some embodiments of the present disclosure, during the process of producing products by production equipment in any process of a battery production line, product information is obtained by the production equipment, and the production equipment then sends the product information to a controller.

[0106] In the embodiment of the present disclosure, the product information may include: a statistical quantity of non-repetitive products and a model information code of the product, which is not limited in the embodiment of the present disclosure.

[0107] In some embodiments of the present disclosure, during the process of producing products by the production equipment of the first process of the battery production line, the production equipment of the first process is used to perform entry and exit verification to obtain the statistical number of non-repetitive products produced by the production equipment of the first process; and the statistical number of non-repetitive products is transmitted to the controller by the production equipment of the first process.

[0108] In some embodiments of the present disclosure, during the process of producing products by production equipment in the second process of the battery production line, the controller obtains the model information code of the product corresponding to the second process.

[0109] In some embodiments of the present disclosure, during the process of producing products by production equipment of the second process of the battery production line, the model information code of the product corresponding to the second process is obtained by the production equipment of the second process; and the model information code of the product is transmitted to the controller by the production equipment of the second process.

[0110] It should be noted that the first process includes: battery cell loading and module insulation testing in the battery module production line, lower box loading, lower box gluing, automatic module boxing, module tightening, busbar welding, upper cover tightening, airtightness testing, electrical performance testing and module packaging and offline at least one of the following: the second process includes: battery cell side gluing, battery cell large surface gluing, battery cell pre-stacking and battery cell pressurization and grouping in the battery module production line.

[0111] In the embodiment of the present disclosure, the first process may be a process with a counting function or a verification function; and the second process may be a process without a counting function or a verification function.

[0112] S102: When the product information satisfies the product switching condition, the controller controls the production equipment of any process to switch to the production of the new model product.

[0113] In some embodiments of the present disclosure, if the process corresponding to the production equipment is the first process, it means that the production equipment has a counting function, and whether the statistical number of the production equipment of the first process reaches the required number of the work order can be used to determine whether to control the production equipment of the first process through the controller to switch to the production of a new model of product.

[0114] In some embodiments of the present disclosure, if the statistical quantity of the production equipment of the first process is consistent with the quantity required by the work order, the controller triggers a product switching request to the production control device; the production control device responds to the product switching request and sends the new model product information to the controller; the controller, based on the new model product information, controls the production equipment of the first process to switch the work fixture so that the production equipment of the first process can switch to produce the new model product.

[0115] It should be noted that not all processes have fixtures, so the embodiment of the present disclosure does not limit the manner in which the controller controls different processes to switch to produce new models of products.

[0116] In some embodiments of the present disclosure, if the process corresponding to the production equipment is the second process, it means that the production equipment of the second process does not have a counting function, and the controller can determine whether to switch to the production of a new model of product based on the product model information code.

[0117] In some embodiments of the present disclosure, if the model information code of the product is inconsistent with the historical model information code, the controller controls the production equipment of the second process to switch the workpiece fixture so that the production equipment of the second process switches to produce the new model product.

[0118] It should be noted that the production equipment for the first process may be the first production equipment, and the production equipment for the second process may be the second production equipment. Therefore, the controller may include a first controller and a second controller. The first controller controls the first production equipment for the first process, and the second controller controls the second production equipment for the second process. The controllers and production equipment may correspond one to one.

[0119] It is understandable that since the production equipment at any process in the battery production line can switch to the production of the new model as soon as the product information meets the product switching conditions, the waste of work-in-process materials caused by the model switching can be reduced. At the same time, since the production equipment at any process does not have to wait for the downstream production equipment to complete subsequent production, it can directly switch to the production of the new model as soon as the product information meets the product switching conditions, reducing the time required for production equipment in each process to switch tools. Therefore, the changeover efficiency of the entire battery production line can be improved.

[0120] In some embodiments of the present disclosure, during the execution of the first process, the present disclosure further performs S103 as follows:

[0121] S103. Issue the required quantity of the work order for the first process through the production control device.

[0122] In some embodiments of the present disclosure, the controller may receive the required quantity of the work order for the first process issued by the production control device.

[0123] In some embodiments of the present disclosure, a work order is production-related information about a product determined before the product is produced.

[0124] In some embodiments of the present disclosure, the required quantity of work orders is determined based on the actual required quantity of products.

[0125] In some embodiments of the present disclosure, the required quantity of the work order is manually confirmed and then sent to the production control device, which is then sent to the controller.

[0126] For example, if the first process is loading battery cells in a battery module production line, the controller may be a lower computer and an upper computer, the lower computer being connected to the production equipment of the first process, and the lower computer communicating with the production control equipment through the upper computer.

[0127] In some embodiments of the present disclosure, based on S103, FIG5 is a second optional flow chart of a battery manufacturing method provided in an embodiment of the present disclosure. As shown in FIG5 , S102 includes S1021 to S1023, as follows:

[0128] S1021. If the statistical quantity of the production equipment of the first process is consistent with the quantity required by the work order, a product switching request is triggered to the production control device through the controller.

[0129] In some embodiments of the present disclosure, the controller compares the statistical quantity of the production equipment of the first process with the work order requirement quantity. If the statistical quantity of the production equipment of the first process is consistent with the work order requirement quantity, it means that the production equipment of the first process has completed the production of the current model product, and the controller triggers a product switching request to the production control device.

[0130] In some embodiments of the present disclosure, the statistical number of production equipment in the first process is achieved through the verification function of the production equipment in the first process. When the product enters and leaves the station, the information code of the product is obtained, and non-repetitive counting is performed to obtain the statistical number of production equipment in the first process.

[0131] It should be noted that the statistical number of production equipment in the first process is the statistical number of qualified products.

[0132] S1022. The production control device responds to the product switching request and sends the new model product information to the controller.

[0133] In some embodiments of the present disclosure, the production control device responds to the product switching request, determines the product information of the new model, and sends the product information of the new model to the controller through the production control device.

[0134] In some embodiments of the present disclosure, the product information of the new model includes the specifications and dimensions of the new model product, the type of workpiece fixture required, and the like.

[0135] S1023. Based on the product information of the new model, the controller controls the production equipment of the first process to switch the fixture so that the production equipment of the first process switches to produce the new model product.

[0136] In some embodiments of the present disclosure, a controller is used to control the production equipment of the first process to switch the workpiece fixture according to the product information of the new model, so that the production equipment of the first process switches to produce the new model of the product.

[0137] It should be noted that different workpieces are required to produce different types of products. Before producing new types of products, the production equipment of the first process needs to be switched to produce the corresponding workpieces.

[0138] It can be understood that when the statistical number of production equipment in the first process matches the number of work order requirements, a product switching request is triggered to the production control device; the new product model information issued by the production control device in response to the product switching request is received; based on the new product model information, the current production equipment is controlled to switch the work fixture so that the production equipment in the first process can switch to producing the new product model. In this process, because the production equipment in the first process does not wait for the downstream production equipment to complete subsequent production and can directly switch to producing the new product model, the changeover efficiency of the entire battery production line can be improved.

[0139] In some embodiments of the present disclosure, the production equipment includes: a first tray, on which an electronic label is affixed; and the second process includes: at least one of gluing the sides of battery cells, gluing the large surfaces of battery cells, pre-stacking battery cells, and pressurizing battery cells into groups in a battery module production line. The battery manufacturing method provided in the embodiments of the present disclosure further performs S104 and S105 as follows:

[0140] S104. Write the product information of the new model into the electronic tag of the first pallet through the controller; the first pallet is the pallet that first arrives at the production equipment of the first process after the production equipment of the first process switches the workpiece fixture.

[0141] In some embodiments of the present disclosure, the controller writes the product information of the new model into the electronic tag of the first pallet so that when the first pallet reaches the second process downstream of the first process, the production equipment of the second process can decide whether to change the production line based on the electronic tag of the first pallet.

[0142] It should be noted that the first pallet is the pallet that arrives at the first process for the first time after the production equipment of the first process switches the fixture.

[0143] S105 : When the first pallet arrives at a second process downstream of the first process, the controller obtains a product model information code during the production process of the production equipment of the second process.

[0144] In some embodiments of the present disclosure, when the first pallet arrives at a second process downstream of the first process, the controller obtains the model information code of the product during the production process of the production equipment of the second process.

[0145] It should be noted that the product model information code affects whether the fixture is switched.

[0146] It can be understood that the controller writes the product information of the new model into the electronic tag of the first pallet. When the first pallet arrives at the downstream production equipment of the current production equipment, the product model information code is obtained during the production process of the downstream production equipment in the production process, so as to determine whether to switch the battery production line based on the product model information code.

[0147] In some embodiments of the present disclosure, the production equipment further includes: a sensor.

[0148] In some embodiments of the present disclosure, a sensor reads the electronic tag of the current pallet arriving at the production equipment of the second process, or reads the electronic tag of the first pallet arriving at the production equipment of the second process to obtain the model information code of the product; and the model information code of the product is transmitted to the controller through the production equipment of the second process.

[0149] In some embodiments of the present disclosure, the electronic tag of the current pallet arriving at the production equipment of the second process is read by a sensor, and the model information code of the product is transmitted to the controller by the production equipment of the second process.

[0150] In some embodiments of the present disclosure, the electronic tag of the first pallet arriving at the production equipment of the second process is read by a sensor, and the model information code of the product is transmitted to the controller by the production equipment of the second process.

[0151] It is understandable that the controller obtains the model information code of the product so as to subsequently determine whether to switch the battery production line based on the model information code of the product.

[0152] In some embodiments of the present disclosure, S102 further includes S1024 as follows:

[0153] S1024. If the model information code of the product is inconsistent with the historical model information code, the controller controls the production equipment of the second process to switch the fixture so that the production equipment of the second process switches to produce the new model product.

[0154] In some embodiments of the present disclosure, the historical model information code is a model information code of a historical product obtained by a controller in a pallet or directly obtained by a production control device.

[0155] In some embodiments of the present disclosure, the model information code of the product is compared with the historical model information code through a controller. If the model information code of the product is inconsistent with the historical model information code, it means that a new model of product needs to be produced, and the production equipment of the second process is controlled to switch the workpiece fixture so that the production equipment of the second process can switch to the production of the new model of product.

[0156] In some embodiments of the present disclosure, after the controller obtains the model information code of the product, it compares the model information code of the product with the historical model information code. If the model information code of the product is inconsistent with the historical model information code, the production equipment of the second process is controlled to switch the workpiece fixture so that the production equipment of the second process can switch to producing the new model product.

[0157] It can be understood that when the model information code of the product is inconsistent with the historical model information code, the controller controls the production equipment of the second process to switch the workpiece, so that the production equipment of the second process can switch to the production of the new model of products. Since the production equipment of the second process does not wait for the downstream production equipment to complete subsequent production, it directly switches to the production of the new model of products, which can improve the changeover efficiency of the entire battery production line.

[0158] In some embodiments of the present disclosure, for the first process, the battery manufacturing method provided by the embodiment of the present disclosure further includes S106 to S1010 as follows:

[0159] S106. During the process of producing products by the production equipment of the first process of the battery production line, the production equipment of the first process is used to perform entry and exit verification to determine the number of defective products of the first process and the number of refurbished products of the first process.

[0160] In some embodiments of the present disclosure, during the process of producing products by production equipment of the first process of a battery production line, the production equipment of the first process performs entry and exit verification to determine the number of defective products of the first process.

[0161] In some embodiments of the present disclosure, during the process of producing products by the production equipment of the first process of the battery production line, the production equipment of the first process is checked for entry and exit to determine the number of refurbished products of the first process.

[0162] In some embodiments of the present disclosure, the number of refurbished products is the number of qualified products obtained after unqualified products are removed from the production equipment of the first process and repaired.

[0163] It should be noted that the number of defective products refers to the number of products that do not meet quality standards; the number of refurbished products refers to the number of qualified products after repairing defective products.

[0164] S107. Send the number of defective products in the first process to the production control equipment.

[0165] In some embodiments of the present disclosure, the number of defective products in the first process may be sent to a production control device via a controller.

[0166] In some embodiments of the present disclosure, the number of defective products in the first process is sent to the production control device by the controller in order to subsequently update the required quantity of the work order.

[0167] S108. Determine the updated work order requirement quantity based on the number of defective products in the first process, the number of defective products in the downstream process, the number of refurbished products in the first process, the number of refurbished products in the downstream process, and the work order requirement quantity of the first process through the production control device.

[0168] In some embodiments of the present disclosure, the number of defective products of the downstream process and the number of refurbished products of the downstream process sent by the controller are received by the production control device; the updated work order requirement quantity of the first process is determined by the production control device based on the work order requirement quantity of the first process, the number of defective products of the first process, the number of defective products of the downstream process, the number of refurbished products of the first process and the number of refurbished products of the downstream process.

[0169] In some embodiments of the present disclosure, a production control device performs a sum operation on the work order requirement quantity of a first process, the number of defective products in the first process, and the number of defective products in a downstream process to obtain a result. A difference operation is performed on the result, the number of refurbished products in the first process, and the number of refurbished products in the downstream process to determine the updated work order requirement quantity for the first process.

[0170] In some embodiments of the present disclosure, a production control device performs a sum operation on the work order quantity required by a first process, the number of defective products in the first process, and the number of defective products in a downstream process to obtain a calculation result. The production control device also performs a difference operation on the calculation result, the number of refurbished products in the first process, and the number of refurbished products in the downstream process to determine an updated work order quantity required.

[0171] It can be understood that the production control equipment performs a sum operation on the number of work order requirements of the first process, the number of defective products of the first process and the number of defective products of the downstream process to obtain the operation result, and performs a difference operation on the operation result, the number of refurbished products of the first process and the number of refurbished products of the downstream process to determine the updated work order requirement quantity, which can accurately determine the number of products to be produced and save material resources.

[0172] In some embodiments of the present disclosure, the updated work order requirement quantity is adjusted according to the real-time qualified quantity of the produced products in order to ensure that the work order requirement quantity that meets the product qualification conditions can be produced.

[0173] S109: Transmit the updated work order requirement quantity to the controller via the production control device.

[0174] S1010. The controller determines whether the updated work order requirement quantity and product information meet the product switching conditions, and controls the production equipment of the first process to switch to the production of the new model product.

[0175] In some embodiments of the present disclosure, the product switching condition may be whether the statistical number of production equipment in the first process meets the updated work order requirement number; or whether the information code of the obtained product is consistent with the information code of the historical product.

[0176] In some embodiments of the present disclosure, the controller may control the production equipment of the first process to switch to the production of the new model product according to whether the updated work order requirement quantity and product information meet the product switching conditions.

[0177] It should be noted that the product switching condition may be whether the statistical quantity of the production equipment of the first process is consistent with the updated work order requirement quantity.

[0178] In some embodiments of the present disclosure, the production equipment of the first process can determine whether the updated work order requirement quantity is zero after obtaining the updated work order requirement quantity. If it is not zero, it means that the production equipment of the first process has not completed all tasks at this time, so there is no need to switch the work fixture at this time; if it is zero, it means that the production equipment of the first process has completed all tasks at this time, so it is necessary to switch the work fixture at this time so that the production equipment of the first process can switch to the production of new models of products.

[0179] It is understandable that during the production process of the production equipment of the first process of the production process, the controller verifies the entry and exit of the production equipment of the first process to determine the number of defective products of the production equipment of the first process and the number of refurbished products of the production equipment of the first process. The receiving production control device determines the updated number of work order requirements based on the number of defective products of the production equipment of the first process, the number of defective products of the downstream process, the number of refurbished products of the production equipment of the first process, the number of refurbished products of the downstream process, and the number of work order requirements of the production equipment of the first process. According to whether the updated number of work order requirements and product information meet the product switching conditions, the production equipment of the first process is controlled to switch to the production of the new model of products. The production equipment of the first process does not wait for the downstream process to complete subsequent production, and directly switches to the production of the new model of products, which can improve the changeover efficiency of the entire battery production line.

[0180] Exemplarily, the battery production line targeted by the embodiments of the present disclosure may also be a battery pack production line for producing battery packs, wherein, for the battery pack production line, the battery pack (PACK) production line may include the following production equipment: lower box on-line equipment, water-cooled flange installation equipment, balancing valve installation equipment, lower box gluing equipment, gluing detection equipment, module boxing equipment, module pre-tightening equipment, module tightening equipment, pole addressing equipment, ceramic coating separator (Ceramic Coating Separator, CCS) installation equipment, laser (BSB) welding equipment, post-weld detection equipment, insulating film pasting equipment, SBOX installation equipment, low-voltage wiring harness installation equipment, module high-voltage equipment installation, SBOX cover installation equipment, tie-tying equipment, sealing gasket installation equipment, cover tightening equipment, airtightness testing equipment, end of line (End of End of Life (EOL) testing equipment, DC resistance (DCR) testing equipment, appearance inspection equipment and weighing end-of-line equipment; among the above-mentioned production equipment, the equipment that needs to switch the production module work order may include: 3 module box-entry equipment, 1 pole addressing equipment, 1 CCS installation equipment, 1 BSB welding equipment, 1 lower box body gluing equipment, 1 weighing end-of-line equipment, 1 SBOX installation equipment, 1 airtightness testing equipment, 1 EOL testing equipment, and 1 DCR testing equipment; in addition, the battery pack production line may also include: production control equipment (MES), which is used to interact with the above-mentioned equipment that needs to switch the production module work order to realize the switching of the production module work order.

[0181] FIG6 is a schematic diagram of a battery pack process according to an embodiment of the present disclosure. As shown in FIG6 , the battery pack (PACK) process may include the following steps in sequence:

[0182] S301: lower cabinet is put on line;

[0183] Among them, the lower box body online equipment is the first workstation equipment in the PACK section, and is mainly used for lower box body online.

[0184] S302: Install water cooling flange;

[0185] Here, after obtaining the lower box body, a water-cooling flange device is installed to install a water-cooling flange on the lower box body.

[0186] S303: Install the balancing valve;

[0187] Among them, after the water-cooling flange is installed on the lower box body, the balancing valve equipment is installed to install the balancing valve on the lower box body.

[0188] S304: Gluing the lower box body;

[0189] Among them, after the balancing valve is installed on the lower box body, the lower box body gluing equipment applies glue to the lower box body.

[0190] S305: Glue coating detection;

[0191] After the lower box body is glued, the glue detection equipment detects the glue coating on the lower box body.

[0192] S306: Modules are put into boxes;

[0193] Here, after the glue coating on the lower box body is inspected, the module loading device puts the module into the lower box body.

[0194] S307: module pre-tightening;

[0195] Among them, after the module is placed in the lower box, the module pre-tightening device pre-tightens the lower box in which the module is placed.

[0196] S308: Tighten the module;

[0197] Among them, after the module pre-tightening process, the module tightening equipment will tighten the pre-lower box.

[0198] S309: pole addressing;

[0199] Among them, after the module tightening process, the pole addressing device performs pole addressing on the lower box.

[0200] S310: Install CCS;

[0201] Among them, after the pole addressing process, the CCS equipment is installed to install the CCS on the lower box.

[0202] S311: BSB welding;

[0203] Among them, after the CCS process is installed, the BSB welding equipment performs BSB welding on the lower box.

[0204] S312: Post-weld inspection;

[0205] Here, after BSB welding, the post-weld inspection equipment performs post-weld inspection on the lower box body.

[0206] S313: Paste the insulating film;

[0207] Among them, after the post-weld inspection process, the insulating film pasting equipment pastes the insulating film on the lower box.

[0208] S314: Install SBOX;

[0209] After the insulating film pasting process, the SBOX equipment is installed to install the SBOX on the lower box.

[0210] S315: Install low voltage wiring harness;

[0211] Among them, after the SBOX installation process, the low-voltage wiring harness equipment is installed to install the low-voltage wiring harness on the lower box.

[0212] S316: Install PACK high voltage;

[0213] Here, after installing the low-voltage wiring harness, the PACK high-voltage equipment is installed on the lower box.

[0214] S317: Install the SBOX cover;

[0215] Among them, after installing the PACK high voltage, install the SBOX upper cover device to install the SBOX upper cover on the lower box.

[0216] S318: Tie tie;

[0217] Here, after the SBOX upper cover is installed, the tie-tying equipment ties the lower box body.

[0218] S319: Install the gasket;

[0219] Among them, after the binding process, the sealing gasket is installed on the lower box body by installing the sealing gasket.

[0220] S320: Tighten the top cover;

[0221] Among them, after the sealing gasket is installed, the upper cover tightening device tightens the upper cover of the lower box body.

[0222] S321: airtightness test;

[0223] Here, after the upper cover is tightened, the airtightness testing equipment performs an airtightness test on the lower box body.

[0224] S322: EOL testing;

[0225] Among them, after the airtight test, the EOL test equipment performs an EOL test on the lower box.

[0226] S323: DCR test;

[0227] Here, after the EOL test process, the DCR test equipment performs a DCR test on the lower box.

[0228] S324: Appearance inspection;

[0229] Among them, after the DCR test process, the appearance inspection equipment performs an appearance test on the lower box, and the products that pass the appearance test can be called battery packs.

[0230] S325: Weighing offline.

[0231] Among them, weighing and offline is the last process of the PACK section. The weighing and offline equipment weighs the battery pack and takes it off the line. In this way, all processes of the entire PACK section can be completed to obtain the battery pack.

[0232] It should be noted that the PACK in the embodiments of the present disclosure may be referred to as a battery pack or a battery box.

[0233] In some embodiments of the present disclosure, FIG7 is a flow chart of an exemplary battery manufacturing method provided by an embodiment of the present disclosure. As shown in FIG7 , the steps are as follows:

[0234] S1. Determine whether the process has the function of checking the entry and exit of work-in-progress parts.

[0235] In some embodiments of the present disclosure, the process corresponds to production equipment.

[0236] In some embodiments of the present disclosure, it is determined whether the process has the function of checking the in-process parts in and out. If so, S2 is executed; if not, S3 is executed.

[0237] S2. Determine whether the outbound quantity meets the work order requirements.

[0238] In some embodiments of the present disclosure, the outbound quantity is the statistical quantity of production equipment in the first process; and the work order demand is the work order demand quantity.

[0239] In some embodiments of the present disclosure, it is determined whether the outbound quantity meets the work order requirement. If so, S4 is executed; if not, S6 is executed.

[0240] S3. Determine whether the electronic tag of the incoming pallet has new model information.

[0241] In some embodiments of the present disclosure, the new model information is equivalent to the product information of the new model.

[0242] In some embodiments of the present disclosure, it is determined whether the electronic tag of the incoming pallet carries new model information. If so, S4 is executed; if not, S6 is executed.

[0243] It should be noted that the product information of the new model can be determined through the product identification code obtained by the sensor.

[0244] S4. Process switching fixtures are adapted to new product models.

[0245] In some embodiments of the present disclosure, after executing S4, S5 is executed.

[0246] S5, process starts to produce the first product of the new model.

[0247] S6. The process does not switch the fixture.

[0248] In some embodiments of the present disclosure, after executing S6, S7 is executed.

[0249] S7, the process continues to produce the original model products.

[0250] It is understandable that the present disclosure switches production equipment one by one. After each production equipment completes production of the original product model, it immediately switches to produce the new product model without waiting for downstream production equipment to complete subsequent production. This can improve the changeover efficiency of the entire battery production line and reduce the waste of work-in-progress materials caused by model switching.

[0251] The present disclosure provides a battery manufacturing method, which is applicable to a battery manufacturing system. FIG8 is a schematic structural diagram of a battery manufacturing system provided by the present disclosure. The battery manufacturing system 80 includes: at least one controller 801, at least one production device 802, and a production control device 803. The production device is a device corresponding to any process in a battery pack production line.

[0252] Each controller is connected to each production equipment; wherein the number of controllers and the number of production equipment are consistent with the number of processes;

[0253] The at least one controller 801 is connected to the production control device 803;

[0254] The at least one production device 802 is configured to use the provided materials to produce products of the respective processes of the battery pack according to the original product model issued by the corresponding controller;

[0255] The production control device 803 is used to send product information to the controller;

[0256] The at least one controller 801 is used to control the production equipment of any process in the battery production line to switch to the production of a new model of product when the product information meets the product switching condition during the production of the product by the production equipment of any process in the battery production line.

[0257] In some embodiments of the present disclosure, the at least one production device 802 includes: a first production device 8021, which is a production device for a first process; the at least one controller 801 includes: a first controller 8011, which is a controller corresponding to the first process;

[0258] The first controller 8011 is connected to the first production equipment 8021;

[0259] The first production equipment 8021 is also used to obtain the non-repetitive statistical number of products produced in the first process of the battery production line during the production of products in the first process; and transmit the non-repetitive statistical number of products to the controller.

[0260] In some embodiments of the present disclosure, the at least one controller 801 includes: a second controller 8012, which is a controller corresponding to the second process; the at least one production equipment 802 includes: a second production equipment 8022, which is a production equipment for the second process;

[0261] The second controller 8012 is connected to the second production equipment 8022;

[0262] The second controller 8012 is further configured to obtain a model information code of a product corresponding to the second process during the production of the product in the second process of the battery production line.

[0263] In some embodiments of the present disclosure, the battery production line includes: a battery pack production line and a battery module production line; the first process includes: battery cell loading and module insulation testing in the battery module production line, lower box assembly, lower box gluing, automatic module boxing, module tightening, busbar welding, upper cover tightening, airtightness testing, electrical performance testing, and module packaging and unloading in the battery pack production line;

[0264] The production control device 803 is used to issue the required quantity of the work order for the first process;

[0265] The first controller 8011 is further configured to trigger a product switching request to the production control device 803 if the statistical quantity of the first production equipment 8021 of the first process is consistent with the work order requirement quantity;

[0266] The production control device 803 is further configured to respond to the product switching request and send product information of a new model to the first controller 8011;

[0267] The first controller 8011 is further configured to control the production equipment of the first process to switch the workpieces based on the product information of the new model, so that the first production equipment 8021 of the first process can switch to produce the new model of product.

[0268] In some embodiments of the present disclosure, the first production equipment 8021 includes: a first tray, on which an electronic label is affixed; the first tray is used for transporting between the first process and the second process; the battery production line includes: a battery module production line and a battery pack production line; the second process includes: at least one of: side gluing of battery cells, large surface gluing of battery cells, pre-stacking of battery cells, and pressurizing and grouping of battery cells in the battery module production line;

[0269] The first controller 8011 is also used to write the product information of the new model into the electronic tag of the first pallet; the first pallet is the pallet that arrives at the first process for the first time after the first production equipment 8021 of the first process switches the workpiece fixture; when the first pallet arrives at the second process downstream of the first process, the product model information code is obtained during the production process of the second production equipment 8022 of the second process.

[0270] In some embodiments of the present disclosure, the second production equipment 8022 includes: a sensor; the sensor is used to scan the electronic tag on the pallet;

[0271] The sensor is configured to read the electronic tag of the current pallet arriving at the second production equipment 8022 of the second process, or to read the electronic tag of the first pallet arriving at the second production equipment 8022 of the second process, to obtain the product model information code; and transmit the product model information code to the second production equipment 8022;

[0272] The second production equipment 8022 is further configured to obtain a product model information code; and transmit the product model information code to the second controller 8012 .

[0273] In some embodiments of the present disclosure, the second controller 8012 is further used to control the second production equipment 8022 of the second process to switch the workpiece fixture if the model information code of the product is inconsistent with the historical model information code, so that the second process can switch to the production of the new model product.

[0274] In some embodiments of the present disclosure, the first production device 8021 is used to perform entry and exit verification during the production of products in the first process of the battery production line, determine the number of defective products in the first process and the number of refurbished products in the first process; and send the number of defective products in the first process to the production control device 803;

[0275] The production control device 803 is further configured to determine an updated work order requirement quantity based on the number of defective products in the first process, the number of defective products in the downstream process, the number of refurbished products in the first process, the number of refurbished products in the downstream process, and the work order requirement quantity of the first process; and transmit the updated work order requirement quantity to the first controller 8011;

[0276] The first controller 8011 is further configured to determine whether the updated work order requirement quantity and product information meet product switching conditions, and control the first process to switch to producing a new model of product.

[0277] In some embodiments of the present disclosure, the production control device 803 is also used to receive the number of defective products of the downstream process and the number of refurbished products of the downstream process sent by the controller; and determine the updated work order requirement quantity of the first process based on the work order requirement quantity of the first process, the number of defective products of the first process, the number of defective products of the downstream process, the number of refurbished products of the first process and the number of refurbished products of the downstream process.

[0278] In some embodiments of the present disclosure, the production control device 803 is also used to perform a sum operation on the number of work order requirements of the first process, the number of defective products of the first process, and the number of defective products of the downstream process to obtain a calculation result; and perform a difference operation on the calculation result, the number of refurbished products of the first process, and the number of refurbished products of the downstream process to determine the updated work order requirement quantity of the first process.

[0279] It should be understood that “one embodiment” or “an embodiment” mentioned throughout the specification means that specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present disclosure. Therefore, “in one embodiment” or “in an embodiment” appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in the various embodiments of the present disclosure, the size of the serial numbers of the above-mentioned steps / processes does not mean the order of execution, and the execution order of each step / process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present disclosure. The serial numbers of the embodiments of the present disclosure are for description only and do not represent the advantages and disadvantages of the embodiments.

[0280] It should be noted that, in the application, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or also includes elements inherent to such process, method, article, or apparatus. 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 apparatus comprising the element.

[0281] In the several embodiments provided in the present disclosure, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0282] The units described above as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; they may be located in one place or distributed across multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment. In addition, the functional units in the various embodiments of the present disclosure may all be integrated into one processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0283] The above is only an embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or replacements that can be easily conceived by any technician familiar with this technical field within the technical scope disclosed in this disclosure should be covered by the protection scope of the present disclosure. Industrial Applicability

[0284] An embodiment of the present disclosure provides a battery manufacturing method, which is applied to a battery manufacturing system. The battery manufacturing system includes: a controller and production equipment. The method includes: in the process of producing products by the production equipment of any process in the battery production line, the controller obtains product information; the production equipment is the equipment corresponding to any process in the battery pack production line; when the product information meets the product switching condition, the controller controls the production equipment of any process to switch to the production of the new model of the product. In the above scheme, since the production equipment of any process in the battery production line starts to switch to the production of the new model of the product when the product information meets the product switching condition, the waste of work-in-progress materials caused by the model switching can be reduced. At the same time, since the production equipment of any process does not have to wait for the downstream production equipment to complete the subsequent production, it directly switches to the production of the new model of the product when the product information meets the product switching condition, which reduces the time for the production equipment of each process to switch tools. Therefore, the changeover efficiency of the entire battery production line can be improved.

Claims

1. A method for manufacturing a battery, wherein: Applied to a battery manufacturing system, the battery manufacturing system comprises: a controller and production equipment, the method comprises: During the process of producing products by production equipment in any process of the battery production line, the controller obtains product information; the production equipment is equipment corresponding to any process in the battery pack production line; When the product information meets the product switching condition, the controller controls the production equipment of any process to switch to the production of the new model of the product.

2. The method according to claim 1, wherein: In the process of producing products by production equipment in any process of the battery production line, the controller obtains product information, including: During the process of the production equipment of the first process of the battery production line producing products, the production equipment of the first process performs in-station and out-station verification to obtain the non-repetitive statistical quantity of the products produced by the production equipment of the first process; The non-repetitive statistical quantity of the product is transmitted to the controller through the production equipment of the first process.

3. The method according to claim 1, wherein: In the process of producing products by production equipment in any process of the battery production line, the controller obtains product information, including: During the process of producing products by the production equipment of the second process of the battery production line, the controller obtains the model information code of the product corresponding to the second process.

4. The method according to claim 2, wherein: The battery production line includes: a battery pack production line and a battery module production line; the first process includes: battery cell loading and module insulation test in the battery module production line, lower box loading, lower box gluing, automatic module box loading, module tightening, busbar welding, upper cover tightening, airtightness test, electrical performance test and module packaging and unloading; the battery manufacturing system also includes: production control equipment, and the method also includes: The work order requirement quantity of the first process is issued through the production control equipment; When the product information meets the product switching condition, the controller controls the production equipment of any process to switch to the production of the new model of the product, including: If the statistical quantity of the production equipment of the first process is consistent with the required quantity of the work order, triggering a product switching request to the production control device through the controller; Responding to the product switching request through the production control device, sending product information of the new model to the controller; The controller controls the production equipment of the first process to switch the tooling based on the product information of the new model, so that the production equipment of the first process switches to produce the product of the new model.

5. The method according to claim 4, wherein: The production equipment includes: a first tray, on which an electronic label is affixed; the second process includes: at least one of gluing the sides of the cells, gluing the large surfaces of the cells, pre-stacking the cells, and pressurizing the cells into groups in the battery module production line; The method further comprises: The controller writes the product information of the new model into the electronic tag of the first pallet; the first pallet is the pallet that arrives at the first process for the first time after the production equipment of the first process switches the fixture; When the first pallet arrives at a second process downstream of the first process, the controller acquires a model information code of a product during a production process of a production device of the second process.

6. The method according to claim 3 or 5, wherein: The production equipment further includes: a sensor; the controller obtains the model information code of the product corresponding to the second process or the controller obtains the model information code of the product, including: The electronic tag of the current pallet arriving at the production equipment of the second process is read by a sensor, or the electronic tag of the first pallet arriving at the production equipment of the second process is read to obtain the model information code of the product; The model information code of the product is transmitted to the controller through the production equipment of the second process.

7. The method according to claim 3 or 5, wherein: When the product information meets the product switching condition, the controller controls the production equipment of any process to switch to the production of the new model of the product, including: If the model information code of the product is inconsistent with the historical model information code, the controller controls the production equipment of the second process to switch the fixture so that the second process switches to the production of the new model product.

8. The method according to claim 4, wherein: The method further comprises: During the process of producing products by the production equipment of the first process of the battery production line, the number of defective products of the first process and the number of refurbished products of the first process are determined by performing in-station and out-station verification by the production equipment of the first process; sending the number of defective products of the first process to the production control device; Determining an updated work order requirement quantity by the production control device based on the number of defective products of the first process, the number of defective products of the downstream process, the number of refurbished products of the first process, the number of refurbished products of the downstream process, and the work order requirement quantity of the first process; transmitting the updated work order requirement quantity to the controller via the production control device; The controller determines whether the updated work order requirement quantity and product information meet the product switching conditions, and controls the production equipment of the first process to switch to the production of the new model of the product.

9. The method according to claim 8, wherein: The step of determining the updated work order requirement quantity based on the number of defective products of the first process, the number of defective products of the downstream process, the number of refurbished products of the first process, the number of refurbished products of the downstream process, and the work order requirement quantity of the first process by the production control device includes: receiving, through the production control device, the number of defective products of the downstream process and the number of refurbished products of the downstream process sent by the controller; The updated work order requirement quantity of the first process is determined by the production control device based on the work order requirement quantity of the first process, the number of defective products of the first process, the number of defective products of the downstream process, the number of refurbished products of the first process and the number of refurbished products of the downstream process.

10. The method according to claim 9, wherein: Determining the updated work order requirement quantity of the first process by the production control device according to the work order requirement quantity of the first process, the number of defective products of the first process, the number of defective products of the downstream process, the number of refurbished products of the first process, and the number of refurbished products of the downstream process includes: Performing a sum operation on the number of work order requirements of the first process, the number of defective products of the first process, and the number of defective products of the downstream process by the production control device to obtain a calculation result; The production control device performs a difference operation on the calculation result, the number of refurbished products of the first process, and the number of refurbished products of the downstream process to determine the updated work order requirement quantity of the first process.

11. A battery manufacturing system, wherein: The battery manufacturing system includes: at least one controller, at least one production equipment and production control equipment; the production equipment is equipment corresponding to any process in the battery pack production line; Each controller is connected to each production equipment; wherein the number of controllers and the number of production equipment are consistent with the number of processes; The at least one controller is connected to the production control equipment; The at least one production device is used to use the provided materials to produce the products of the respective processes of the battery pack according to the original product model issued by the corresponding controller; The production control device is used to send product information to the controller; The at least one controller is used to control the production equipment of any process in the battery production line to switch to the production of a new model of product when the product information meets the product switching condition during the process of the production equipment of any process in the battery production line producing products.

12. The system according to claim 11, wherein: The at least one production equipment includes: a first production equipment, the first production equipment is a production equipment for a first process; the at least one controller includes: a first controller, the first controller is a controller corresponding to the first process; The first controller is connected to the first production equipment; The first production equipment is also used to obtain the non-repetitive statistical number of products produced in the first process of the battery production line during the process of producing products in the first process; and transmit the non-repetitive statistical number of products to the controller.

13. The system according to claim 11, wherein: The at least one controller includes: a second controller, the second controller is a controller corresponding to the second process; the at least one production equipment includes: a second production equipment, the second production equipment is a production equipment for the second process; The second controller is connected to the second production equipment; The second controller is also used to obtain the model information code of the product corresponding to the second process during the production of the product in the second process of the battery production line.

14. The system according to claim 12, wherein: The battery production line includes: a battery pack production line and a battery module production line; the first process includes: battery cell loading and module insulation test in the battery module production line, lower box loading, lower box gluing, automatic module loading, module tightening, busbar welding, upper cover tightening, airtightness test, electrical performance test and module packaging and unloading in the battery pack production line. The production control device is used to issue the required quantity of the work order of the first process; The first controller is further configured to trigger a product switching request to a production control device if the statistical quantity of the first production device of the first process is consistent with the work order requirement quantity; The production control device is further used to respond to the product switching request and send product information of a new model to the first controller; The first controller is also used to control the production equipment of the first process to switch the workpiece based on the product information of the new model, so that the first production equipment of the first process can switch to produce the new model of the product.

15. The system of claim 14, wherein: The first production equipment includes: a first tray, on which an electronic label is attached; the first tray is used for transmission between the first process and the second process; the battery production line includes: a battery module production line and a battery pack production line; the second process includes: at least one of: side gluing of battery cells, large surface gluing of battery cells, pre-stacking of battery cells and pressurization of battery cells into groups in the battery module production line; The first controller is further used to write the product information of the new model into the electronic tag of the first pallet; the first pallet is the pallet that first arrives at the first process after the first production equipment of the first process switches the fixture; The second controller is further configured to obtain a model information code of the product during a production process of a second production device in a second process when the first pallet arrives at a second process downstream of the first process.

16. The system according to claim 13 or 15, wherein: The second production equipment includes: a sensor; the sensor is used to scan the electronic tag on the pallet; The sensor is used to read the electronic tag of the current pallet arriving at the second production equipment of the second process, or read the electronic tag of the first pallet arriving at the second production equipment of the second process, to obtain the model information code of the product; and transmit the model information code of the product to the second production equipment; The second production equipment is also used to obtain a model information code of a product; and transmit the model information code of the product to the second controller.

17. The system according to claim 13 or 15, wherein: The second controller is also used to control the second production equipment of the second process to switch the workpiece if the model information code of the product is inconsistent with the historical model information code, so that the second process can switch to the production of the new model product.

18. The system of claim 14, wherein: The first production equipment is used to perform in-and-out verification through the first process of the battery production line during the production of products, determine the number of defective products of the first process and the number of refurbished products of the first process; and send the number of defective products of the first process to the production control equipment; The production control device is further used to determine an updated work order requirement quantity based on the number of defective products in the first process, the number of defective products in the downstream process, the number of refurbished products in the first process, the number of refurbished products in the downstream process, and the work order requirement quantity of the first process; and transmit the updated work order requirement quantity to the first controller; The first controller is also used to determine whether the updated work order requirement quantity and product information meet the product switching conditions, and control the first process to switch to the production of new models of products.

19. The system of claim 18, wherein: The production control device is also used to receive the number of defective products of the downstream process and the number of refurbished products of the downstream process sent by the controller; and determine the updated number of work order requirements for the first process based on the number of work order requirements for the first process, the number of defective products of the first process, the number of defective products of the downstream process, the number of refurbished products of the first process and the number of refurbished products of the downstream process.

20. The system of claim 19, wherein: The production control equipment is also used to perform a sum operation on the number of work order requirements of the first process, the number of defective products of the first process and the number of defective products of the downstream process to obtain a calculation result; and perform a difference operation on the calculation result, the number of refurbished products of the first process and the number of refurbished products of the downstream process to determine the updated number of work order requirements of the first process.

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