Battery manufacturing method and system

Abstract

A battery manufacturing method and a manufacturing system (300), the method comprising: an upper computer (31), on the basis of a current first manufacturing work order, determining a number of first battery cells in a process of manufacturing a product by manufacturing equipment (32) of a first process of a battery production line (S401); the upper computer (31) determining a number of second battery cells (S402); when the number of the second battery cells is greater than or equal to the number of the first battery cells, the upper computer (31) sending a control instruction to first manufacturing equipment (32) of the first process, and setting a next first manufacturing work order as a current first manufacturing work order, so as to complete switching of the first manufacturing work order (S403); a manufacturing execution system (33) determining, for a current second manufacturing work order, a number of battery packs not completed by work station equipment (34) in the process of manufacturing the product by the work station equipment (34) of a second process of the battery production line, and sending the number of uncompleted battery packs to the work station equipment (S404); when the number of uncompleted battery packs is zero, the work station equipment (34) setting the next second manufacturing work order as a current second manufacturing work order, so as to complete the switching of the second manufacturing work order (S405).

Description

A battery production method and system

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure is based on the Chinese patent application with application number 202311233416.3, application date September 22, 2023, and invention name “A method and system for producing a battery”, 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 a production work order switching technology during a battery production process, and more particularly to a battery production 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] At present, in the relevant technology, in the battery production process, for different processes, after the current production work order is completed, it is necessary to manually clear the materials of the entire line and re-edit and configure the production work order of the new product. In this way, the entire product changeover time takes more than several hours, resulting in low changeover efficiency, which in turn leads to low utilization of the production line. It can be seen from this that the existing switching of production work orders has the technical problem of low utilization of the production line.

[0006] Summary of the Invention

[0007] The embodiments of the present disclosure provide a battery production method and system, which can automatically switch production work orders and improve the utilization rate of the production line.

[0008] The technical solution of the present disclosure is achieved as follows:

[0009] An embodiment of the present disclosure provides a battery production method, which is applied to a battery production system. The battery production system includes: a host computer, production equipment for a first process, workstation equipment for a second process, and a production execution system. The method may include:

[0010] The upper computer determines the first number of battery cells based on the current first production work order during product production by production equipment in the first process of the battery production line; wherein the first number of battery cells is the number of battery cells actually required for the current first production work order;

[0011] The host computer determines the second number of battery cells; wherein the second number of battery cells is the number of qualified battery cells determined for the current first production work order;

[0012] When the number of the second battery cells is greater than or equal to the number of the first battery cells, the host computer sends a control instruction to the first production equipment of the first process and uses the next first production work order as the current first production work order to complete the switching of the first production work order; wherein the control instruction is used to stop the first production equipment;

[0013] During the production process of products at the workstation equipment of the second process of the battery production line, the production execution system determines the number of unfinished battery packs at the workstation equipment for the current second production work order and sends the number of unfinished battery packs to the workstation equipment;

[0014] When the number of unfinished battery packs is zero, the workstation equipment uses the next second production work order as the current second production work order to complete the switching of the second production work order.

[0015] By comparing the actual number of battery cells required for the current first production work order with the number of qualified battery cells determined by the upper computer, when the current first production work order is completed, the next first production work order can be automatically used as the current first production work order to intelligently complete the switching of the first production work order. For the current second production work order, the switching of the second production work order is realized through the interaction between the production execution system and the workstation equipment, and the switching of the second production work order is completed intelligently, which shortens the time for the entire production line changeover and thus improves the utilization rate of the production line.

[0016] In an optional embodiment, the first production work order is a production module work order, and the second production work order is a production battery pack work order.

[0017] In this way, the automated switching of production module work orders and the automated switching of battery pack (PACK) work orders is achieved, which shortens the time for switching production work orders in battery production and improves the utilization rate of production lines in battery production.

[0018] In an optional embodiment, the first production equipment of the first process is a battery cell online equipment, and the second production equipment of the first process is a battery cell code scanning equipment. Correspondingly, the first number of battery cells is the number of battery cells actually required to be online for the current first production work order; the second number of battery cells is the number of battery cells that are qualified to be online after battery cell scanning for the current first production work order.

[0019] In this way, the number of first battery cells can be determined with the help of the battery cell online device, and the number of second battery cells can be determined with the help of the battery cell scanning device, thereby realizing the automated switching of production module work orders, shortening the time for switching production work orders in battery production, and improving the utilization rate of the production line in battery production.

[0020] In an optional embodiment, the host computer determines the first number of battery cells based on the current first production work order during the production process of the production equipment in the first process of the battery production line. The determining the first number of battery cells based on the current first production work order may include:

[0021] During the production process of the production equipment of the first process of the battery production line, the host computer determines the number of third battery cells based on the current first production work order; wherein the third number of battery cells is the number of battery cells theoretically required to be put online for the current first production module work order;

[0022] The host computer obtains the fourth number of battery cells; wherein the fourth number of battery cells is the number of battery cells that are unqualified when the first production module work order is used in the production process of the production equipment in the first process;

[0023] The host computer determines the sum of the third number of battery cells and the fourth number of battery cells as the first number of battery cells.

[0024] Through the above method, the first number of battery cells not only includes the number of battery cells that need to be put into production theoretically, but also includes the number of battery cells that are unqualified during the production process. Therefore, the first number of battery cells can represent the actual number of battery cells that need to be put into production, providing more accurate data support for the switching of the first production work order, which is conducive to more accurate switching of the first production work order.

[0025] In an optional embodiment, during the production process of the production equipment of the first process of the battery production line, the upper computer determines the number of the third battery cells based on the current first production work order, which may include:

[0026] During the process of producing products by the production equipment of the first process of the battery production line, the upper computer determines the third number of battery cells by multiplying the number of modules required in the current first production work order by the number of battery cells in a single module in the current first production work order.

[0027] Through the above method, the product of the required number of modules and the number of battery cells in a single module can be used as the third number of battery cells, and the third number of battery cells can be used to calculate the first number of battery cells for switching the first production work order, thereby improving the accuracy of the actual number of battery cells required to go online, and thereby improving the accuracy of the switching.

[0028] In an optional embodiment, the production equipment of the first process includes: a battery cell gluing device and a module pressurizing device. Correspondingly, the host computer obtains the number of the fourth battery cells, which may include:

[0029] The host computer receives the fifth number of battery cells sent from the programmable logic controller; wherein the fifth number of battery cells is the number of battery cells that fail to meet the requirements of the battery cell gluing process performed on the battery cell gluing equipment for the current first production work order;

[0030] The host computer determines the sixth number of battery cells; wherein the sixth number of battery cells is the number of battery cells included in the module that failed the module pressurization process in the module pressurization equipment for the current first production work order;

[0031] The host computer determines the fifth number of battery cells or the sixth number of battery cells as the fourth number of battery cells.

[0032] In this way, the host computer can determine the number of unqualified battery cells in the production of one production device or multiple production devices from other production equipment, and use it as the fourth number of battery cells, which helps to determine the first number of battery cells, and then be used to more accurately complete the automatic switching of the current first production work order, thereby improving the utilization rate of the production line.

[0033] In an optional embodiment, the above method may further include:

[0034] The host computer determines the sum of the number of the fifth battery cells and the number of the sixth battery cells as the number of the fourth battery cells.

[0035] In this way, the fourth number of battery cells includes both the number of battery cells that are unqualified in the battery cell glue and the number of battery cells contained in the modules that are unqualified during the module pressurization process. The fourth number of battery cells includes as many unqualified battery cells as possible in the production of production equipment, thereby improving the accuracy of the fourth number of battery cells, and then improving the accuracy of the first number of battery cells, which helps to more accurately realize the automatic switching of the first production work order.

[0036] In an optional embodiment, the host computer determining the number of the sixth battery cells may include:

[0037] The host computer determines the number of modules that fail the module pressurization process in the module pressurization equipment for the current first production work order;

[0038] The host computer multiplies the number of unqualified modules by the number of battery cells in a single module in the current first production work order to determine the number of sixth battery cells.

[0039] In this way, the sixth battery cell quantity can be determined, which can be directly determined as the fourth battery cell quantity, or the sum of the sixth battery cell quantity and the fifth battery cell quantity can be determined as the fourth battery cell quantity, which is used to determine the first battery cell quantity, thereby realizing the automatic switching of the first production work order.

[0040] In an optional embodiment, when the number of the second battery cells is greater than or equal to the number of the first battery cells, the host computer sends a control instruction to the first production equipment of the first process and uses the next first production work order as the current first production work order to complete the switching of the first production work order, which may include:

[0041] When the second number of battery cells is greater than or equal to the first number of battery cells, the host computer sends a control instruction to the first production equipment of the first process and sends a switching request for the first production work order to the production execution system;

[0042] The production execution system obtains the next first production work order based on the switching request of the first production work order and sends it to the host computer;

[0043] The host computer uses the next first production work order as the current first production work order to complete the switching of the first production work order.

[0044] In this way, automatic switching of the first production work order is achieved through interaction with the production execution system, which shortens the time consumed in switching the first production work order and thus improves the utilization rate of the production line.

[0045] In an optional embodiment, the above method may further include:

[0046] When the number of the second battery cells is greater than or equal to the number of the first battery cells, the upper computer sends a control instruction to the first production equipment of the first process, and uses the next first production work order as the current first production work order to complete the switching of the first production work order. After that, the upper computer returns to execute the process of producing products on the production equipment of the first process of the battery production line, and determines the number of the first battery cells based on the current first production work order.

[0047] In this way, the first production work order is switched in sequence, so that the products on the production line correspond to the first production work order, thereby achieving continuous and automatic switching of the first production work order.

[0048] In an optional embodiment, during the production process of the workstation equipment in the second process of the battery production line, the production execution system determines the number of unfinished battery packs of the workstation equipment for the current second production work order, and sends the number of unfinished battery packs to the workstation equipment, which may include:

[0049] During the production process of products at the workstation equipment in the second process of the battery production line, the production execution system determines the number of battery packs completed by the workstation equipment for the current second production work order;

[0050] The production execution system determines the number of unfinished battery packs based on the number of battery packs that the current second production work order workstation equipment needs to complete and the number of completed battery packs, and sends the number of unfinished battery packs to the workstation equipment.

[0051] In this way, by pre-storing the number of battery packs required to be completed by the workstation equipment of the current second production work order and the number of battery packs that have been completed by the workstation equipment determined for the current second production work order, the number of unfinished battery packs can be determined, which is used to determine whether the time has come to switch to the second production work order, which helps to automate the switching of the second production work order, thereby improving the utilization rate of the production line.

[0052] In an optional embodiment, during the production process of the workstation equipment in the second process of the battery production line, the production execution system determines the number of battery packs completed by the workstation equipment for the current second production work order, which may include:

[0053] The workstation equipment scans the barcodes of the battery packs entering and leaving the station respectively to obtain the number of battery packs entering and leaving the station;

[0054] The number of battery packs sent by the workstation equipment to the production execution system;

[0055] The production execution system determines the number of battery packs entering and leaving the station as the number of completed battery packs.

[0056] In this way, by counting the number of battery packs that have successfully scanned the code to enter the station and successfully scanned the code to exit the station through the work station equipment, the number of completed battery packs can be obtained, thereby determining whether the time has come to switch to the second production work order, realizing the intelligent switching of the second production work order and improving the utilization rate of the production line.

[0057] In an optional embodiment, when the number of unfinished battery packs is zero, the workstation device uses the next second production work order as the current second production work order to complete the switching of the second production work order, which may include:

[0058] When the number of unfinished battery packs is zero, the workstation device sends a switching request for a second production work order for the workstation device to the production execution system;

[0059] The production execution system obtains the next second production work order based on the switching request for the second production work order of the work station device, and sends the next second production work order to the work station device;

[0060] The workstation equipment uses the next second production work order as the current second production work order to complete the switching of the second production work order.

[0061] In this way, each workstation equipment can complete the automatic switching of the second production work order through interaction with the production execution system, shortening the time spent on switching the second production work order, realizing intelligent switching of the second production work order, and improving the utilization rate of the production line.

[0062] The present disclosure provides a battery production system, comprising a host computer, production equipment for a first process, workstation equipment for a second process, and a production execution system, including:

[0063] The host computer is configured to determine, during production of a product by production equipment in a first process of a battery production line, based on a current first production work order, a first number of battery cells; wherein the first number of battery cells is the number of battery cells actually required for the current first production work order;

[0064] The host computer is used to determine the second number of battery cells; wherein the second number of battery cells is the number of qualified battery cells determined for the current first production work order;

[0065] The upper computer is used to send a control instruction to the first production equipment of the first process when the number of the second battery cells is greater than or equal to the number of the first battery cells, and use the next first production work order as the current first production work order to complete the switching of the first production work order; wherein the control instruction is used to stop the operation of the first production equipment;

[0066] A production execution system is used to determine the number of unfinished battery packs at the workstation equipment in the second process of the battery production line for the current second production work order during the production of products at the workstation equipment, and to send the number of unfinished battery packs to the workstation equipment;

[0067] The workstation equipment is used to use the next second production work order as the current second production work order when the number of unfinished battery packs is zero, so as to complete the switching of the second production work order.

[0068] By comparing the actual number of battery cells required for the current first production work order with the number of qualified battery cells determined by the upper computer, when the current first production work order is completed, the next first production work order can be automatically used as the current first production work order to intelligently complete the switching of the first production work order. For the current second production work order, the switching of the second production work order is realized through the interaction between the production execution system and the workstation equipment, and the switching of the second production work order is completed intelligently, which shortens the time for the entire production line changeover and thus improves the utilization rate of the production line.

[0069] In an optional embodiment, the first production work order is a production module work order, and the second production work order is a production battery pack work order.

[0070] In this way, the automated switching of production module work orders and the automated switching of production PACK work orders is achieved, which shortens the time for switching production work orders in battery production and improves the utilization rate of production lines in battery production.

[0071] In an optional embodiment, the first production equipment of the first process is a battery cell online equipment, and the second production equipment of the first process is a battery cell code scanning equipment. Correspondingly, the first number of battery cells is the number of battery cells actually required to be online for the current first production work order; the second number of battery cells is the number of battery cells that are qualified to be online after battery cell scanning for the current first production work order.

[0072] In this way, the number of first battery cells can be determined with the help of the battery cell online equipment, and the number of second battery cells can be determined with the help of the battery cell scanning equipment, thereby realizing the automated switching of production module work orders, shortening the time for switching production work orders in battery production, and improving the utilization rate of production lines in battery production.

[0073] In an optional embodiment, the host computer is further configured to:

[0074] During product production by production equipment in the first process of the battery production line, the third number of battery cells is determined based on the current first production work order; wherein the third number of battery cells is the theoretical number of battery cells required to be put into production for the current first production work order;

[0075] Obtaining the fourth number of battery cells; wherein the fourth number of battery cells is the number of battery cells that are unqualified during the production process of the first production work order by the production equipment in the first process;

[0076] The host computer determines the sum of the third number of battery cells and the fourth number of battery cells as the first number of battery cells.

[0077] In this way, the first number of battery cells not only includes the number of battery cells that theoretically need to be put into production, but also includes the number of battery cells that are unqualified during the production process. Therefore, the first number of battery cells can represent the actual number of battery cells that need to be put into production, providing more accurate data support for the switching of the first production work order, which is conducive to more accurate switching of the first production work order.

[0078] In an optional embodiment, the host computer is further configured to:

[0079] During the production process of products by the production equipment of the first process of the battery production line, the product of the number of modules required in the current first production work order and the number of battery cells in a single module in the current first production work order is determined as the third number of battery cells.

[0080] In this way, the product of the required number of modules and the number of battery cells in a single module can be used as the third number of battery cells, and the third number of battery cells can be used to calculate the first number of battery cells for switching the first production work order, thereby improving the accuracy of the actual number of battery cells required to go online, and thus improving the accuracy of the switching.

[0081] In an optional embodiment, the production equipment of the first process includes: a battery cell gluing device and a module pressurizing device. Correspondingly, the host computer is also used to:

[0082] Receive a fifth number of battery cells sent from a programmable logic controller; wherein the fifth number of battery cells is the number of battery cells that failed to meet the requirements of the battery cell gluing process performed on the battery cell gluing equipment for the current first production order;

[0083] Determine the sixth number of battery cells; wherein the sixth number of battery cells is the number of battery cells contained in the module that failed the module pressurization process in the module pressurization equipment for the current first production work order;

[0084] The fifth number of battery cells or the sixth number of battery cells is determined as the fourth number of battery cells.

[0085] In this way, the host computer can determine the number of unqualified battery cells in the production of one production device or multiple production devices from other production equipment, and use it as the fourth number of battery cells, which helps to determine the first number of battery cells, and then use it to more accurately complete the automatic switching of the current first production work order, thereby improving the utilization rate of the production line.

[0086] In an optional embodiment, the host computer is further configured to:

[0087] The sum of the fifth number of battery cells and the sixth number of battery cells is determined as the fourth number of battery cells.

[0088] In this way, the fourth number of battery cells includes both the number of battery cells that are unqualified in the battery cell glue and the number of battery cells contained in the modules that are unqualified during the module pressurization process. The fourth number of battery cells includes as many unqualified battery cells as possible in the production of production equipment, thereby improving the accuracy of the fourth number of battery cells, and then improving the accuracy of the first number of battery cells, which helps to more accurately realize the automatic switching of the first production work order.

[0089] In an optional embodiment, the host computer is further configured to:

[0090] Determine the number of modules that failed the module pressurization process in the module pressurization equipment for the current first production work order;

[0091] The product of the number of unqualified modules and the number of battery cells in a single module in the current first production work order is determined as the sixth number of battery cells.

[0092] In this way, the sixth battery cell quantity can be determined, which can be directly determined as the fourth battery cell quantity, or the sum of the sixth battery cell quantity and the fifth battery cell quantity can be determined as the fourth battery cell quantity, which is used to determine the first battery cell quantity, thereby realizing the automatic switching of the first production work order.

[0093] In an optional embodiment,

[0094] The host computer is further configured to, when the number of the second battery cells is greater than or equal to the number of the first battery cells, send a control instruction to the first production equipment of the first process and send a switching request for the first production work order to the production execution system;

[0095] The production execution system is further configured to obtain the next first production work order based on the switching request of the first production work order and send it to the host computer;

[0096] The upper computer is further used to set the next first production work order as the current first production work order to complete the switching of the first production work order.

[0097] In this way, automatic switching of the first production work order is achieved through interaction with the production execution system, which shortens the time consumed in switching the first production work order and thus improves the utilization rate of the production line.

[0098] In an optional embodiment, the host computer is further configured to:

[0099] When the number of the second battery cells is greater than or equal to the number of the first battery cells, a control instruction is sent to the first production equipment of the first process, and the next first production work order is used as the current first production work order to complete the switching of the first production work order. Then, the process of producing products by the production equipment of the first process of the battery production line is returned to determine the number of the first battery cells based on the current first production work order.

[0100] In this way, the first production work order is switched in sequence, so that the products on the production line correspond to the first production work order, thereby improving the continuous and automatic switching of the first production work order.

[0101] In an optional embodiment, the production execution system is further configured to:

[0102] During the production process of products by the workstation equipment in the second process of the battery production line, the number of battery packs completed by the workstation equipment is determined for the current second production work order;

[0103] Based on the number of battery packs that need to be completed by the equipment at the current second production work order station and the number of completed battery packs, the number of unfinished battery packs is determined.

[0104] In this way, by pre-storing the number of battery packs required to be completed by the workstation equipment of the current second production work order and the number of battery packs that have been completed by the workstation equipment determined for the current second production work order, the number of unfinished battery packs can be determined, which is used to determine whether the time has come to switch to the second production work order, which helps to automate the switching of the second production work order, thereby improving the utilization rate of the production line.

[0105] In an optional embodiment, the method includes:

[0106] The workstation equipment is also used to scan the barcodes of the battery packs entering and leaving the station, obtain the number of battery packs entering and leaving the station, and send the number of battery packs entering and leaving the station to the production execution system;

[0107] The production execution system is also used to determine the number of battery packs entering and leaving the station as the number of completed battery packs.

[0108] In this way, by counting the number of battery packs that have successfully scanned the code to enter the station and successfully scanned the code to exit the station through the work station equipment, the number of completed battery packs can be obtained, thereby determining whether the time has come to switch to the second production work order, realizing the intelligent switching of the second production work order and improving the utilization rate of the production line.

[0109] In an optional embodiment, the method includes:

[0110] The workstation device is further configured to send a switching request for a second production work order for the workstation device to the production execution system when the number of unfinished battery packs reaches zero;

[0111] The production execution system is further configured to obtain a next second production work order based on a switching request for the second production work order of the work station device, and send the next second production work order to the work station device;

[0112] The workstation equipment is also used to use the next second production work order as the current second production work order to complete the switching of the second production work order.

[0113] In this way, each workstation equipment can complete the automatic switching of the second production work order through interaction with the production execution system, shortening the time spent on switching the second production work order, realizing intelligent switching of the second production work order, and improving the utilization rate of the production line.

[0114] An embodiment of the present disclosure provides a battery production method and system, which is applied to a battery production system, the system comprising: a host computer, production equipment of a first process, workstation equipment of a second process, and a production execution system, the method comprising: during the process of the production equipment of the first process of the battery production line producing products, the host computer determines the first number of battery cells based on the current first production work order, wherein the first number of battery cells is the number of battery cells actually required for the current first production work order, the host computer determines the second number of battery cells, wherein the second number of battery cells is the number of battery cells determined to be qualified for the current first production work order, when the second number of battery cells is greater than or equal to the first number of battery cells, the host computer sends a control instruction to the first production equipment of the first process, and uses the next first production work order as the current first production work order to complete the switching of the first production work order, wherein the control instruction is used to stop the first production equipment from working, and during the process of the workstation equipment of the second process of the battery production line producing products, the production execution system determines the number of unfinished battery packs of the workstation equipment for the current second production work order, and sends the number of unfinished battery packs to the workstation equipment, when the number of unfinished battery packs is At zero o'clock, the workstation equipment uses the next second production work order as the current second production work order to complete the switching of the second production work order; that is, in the embodiment of the present disclosure, in the first process of the battery production line, the upper computer determines the number of battery cells actually required for the current first production work order and the number of battery cells that are qualified for the current first production work order, that is, the first number of battery cells and the second number of battery cells, and when the second number of battery cells is greater than or equal to the first number of battery cells, sends a control instruction to the first production equipment to stop working and use the next first production work order as the current first production work order. In addition, in the second process of the battery production line, the production execution system sends the number of unfinished battery packs determined by the workstation equipment for the current second production work order to the workstation equipment, so that when the workstation equipment determines to complete the task of the current second production work order based on the number of unfinished battery packs, it uses the next second production work order as the current second production work order, thereby realizing automatic switching of the second production work order. In this way, the switching between the first production work order and the second production work order is completed intelligently, shortening the changeover time of switching production work orders on the production line, thereby improving the utilization rate of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0115] FIG1 is a schematic diagram of a module process according to an embodiment of the present disclosure;

[0116] FIG2 is a process diagram of producing a PACK according to an embodiment of the present disclosure;

[0117] FIG3 is a schematic structural diagram of a battery production system provided by an embodiment of the present disclosure;

[0118] FIG4 is a schematic flow chart of a method for producing a battery according to an embodiment of the present disclosure;

[0119] FIG5 is a flow chart of an example of a method for switching a production module work order according to an embodiment of the present disclosure;

[0120] FIG6 is a flow chart of an example of a method for switching production PACK work orders provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0121] The technical solutions in the embodiments of the present disclosure will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present disclosure.

[0122] 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.

[0123] 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 (sometimes also referred to as a 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 continue to be used by activating the active material by charging after the battery cell is discharged. 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.

[0124] The production process of the battery may include at least two steps, namely: a first step and a second step. In the embodiment of the present disclosure, the first step may be a step for producing a battery module, and the second step may be a step for producing a PACK.

[0125] Among them, for the first process, when the first production work order changes, the related technology spends a lot of time on manual switching of the first production work order, resulting in low utilization of the production line. In order to improve the utilization of the production line, in the embodiment of the present disclosure, a host computer can be used to execute the switching of the first production work order.

[0126] The first process targeted by the embodiment of the present disclosure may be a process for producing battery modules, wherein, for the production of modules, the production line of the module may include production equipment including: battery cell online equipment, battery cell scanning equipment, side glue equipment, side glue detection equipment, battery cell stacking equipment, module pressurizing equipment and module scanning equipment; in addition, the production line may also include: a host computer, a programmable logic controller (PLC) and a manufacturing execution system (MES), wherein the host computer has communication connections with the above-mentioned production equipment, PLC and MES respectively, for switching production module work orders.

[0127] FIG1 is a schematic diagram of a module process according to an embodiment of the present disclosure. As shown in FIG1 , the module process may include:

[0128] S101, battery cells are online;

[0129] Among them, the battery cell online is the first workstation in the module section.

[0130] S102, scan the battery cell code;

[0131] Among them, the number A of qualified battery cells that can be put into production can be obtained from this process.

[0132] S103, side adhesive tape;

[0133] S104, side adhesive testing;

[0134] Among them, the number B of battery cells that fail the inspection can be obtained from this process.

[0135] S105, battery cell stacking;

[0136] S106, module pressurization;

[0137] Among them, the number C of modules that fail to meet the requirements during the module pressurization process can be obtained from this process.

[0138] S107, module scan code.

[0139] Among them, module code scanning is the terminal station of the module section.

[0140] 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.

[0141] 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.

[0142] In addition, for the second process, when the second production work order changes, the related technology takes a lot of time to manually switch the second production work order, resulting in low utilization of the production line. In order to improve the utilization of the production line, in the embodiment of the present disclosure, the production execution system and the workstation equipment can interact to complete the switching of the second production work order.

[0143] The second process targeted by the embodiment of the present disclosure may be a process for producing PACK, wherein, for the production of PACK, the production line of the PACK may include the following station equipment: lower box body on-line equipment, water-cooling flange installation equipment, balancing valve installation equipment, lower box body 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, PACK 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 Line, EOL) test equipment, DC resistance (DCR) test equipment, appearance inspection equipment and weighing end-of-line equipment; among the above-mentioned work station equipment, the equipment that needs to be switched to the second production 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 test equipment, 1 EOL test equipment, and 1 DCR test equipment; in addition, the PACK production line may also include: MES, which is used to interact with the above-mentioned equipment that needs to be switched to the second production work order to realize the switching of the second production work order.

[0144] FIG2 is a schematic diagram of a PACK process according to an embodiment of the present disclosure. As shown in FIG2 , the PACK process may include:

[0145] S201, lower box body on line;

[0146] 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.

[0147] S202, install the water cooling flange;

[0148] 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.

[0149] S203, install the balancing valve;

[0150] 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.

[0151] S204, gluing the lower box body;

[0152] 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.

[0153] S205, glue coating detection;

[0154] After the lower box body is glued, the glue detection equipment detects the glue coating on the lower box body.

[0155] S206, module into box;

[0156] Here, after the glue coating on the lower box body is inspected, the module loading device puts the module into the lower box body.

[0157] S207, module pre-tightening;

[0158] 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.

[0159] S208, tighten the module;

[0160] Among them, after the module pre-tightening process, the module tightening equipment will tighten the pre-lower box.

[0161] S209, pole addressing;

[0162] Among them, after the module tightening process, the pole addressing device performs pole addressing on the lower box.

[0163] S210, install CCS;

[0164] Among them, after the pole addressing process, the CCS equipment is installed to install the CCS on the lower box.

[0165] S211, BSB welding;

[0166] Among them, after the CCS process is installed, the BSB welding equipment performs BSB welding on the lower box.

[0167] S212, post-weld inspection;

[0168] Here, after BSB welding, the post-weld inspection equipment performs post-weld inspection on the lower box body.

[0169] S213, pasting insulating film;

[0170] Among them, after the post-weld inspection process, the insulating film pasting equipment pastes the insulating film on the lower box.

[0171] S214, install SBOX;

[0172] After the insulating film pasting process, the SBOX equipment is installed to install the SBOX on the lower box.

[0173] S215, install low voltage wiring harness;

[0174] 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.

[0175] S216, install PACK high voltage;

[0176] Here, after installing the low-voltage wiring harness, install the PACK high-voltage equipment and install the PACK high-voltage on the lower box.

[0177] S217, install the SBOX cover;

[0178] Among them, after installing the PACK high voltage, install the SBOX upper cover device to install the SBOX upper cover on the lower box.

[0179] S218, tie the cable ties;

[0180] Here, after the SBOX upper cover is installed, the tie-tying equipment ties the lower box body.

[0181] S219, install the sealing gasket;

[0182] Among them, after the binding process, the sealing gasket is installed on the lower box body by installing the sealing gasket.

[0183] S220, tighten the upper cover;

[0184] Among them, after the sealing gasket is installed, the upper cover tightening device tightens the upper cover of the lower box body.

[0185] S221, airtightness test;

[0186] Here, after the upper cover is tightened, the airtightness testing equipment performs an airtightness test on the lower box body.

[0187] S222, EOL testing;

[0188] Among them, after the airtight test, the EOL test equipment performs an EOL test on the lower box.

[0189] S223, DCR test;

[0190] Here, after the EOL test process, the DCR test equipment performs a DCR test on the lower box.

[0191] S224, appearance inspection;

[0192] 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.

[0193] S225, weighing offline.

[0194] 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.

[0195] 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.

[0196] An embodiment of the present disclosure provides a battery production method, which is applied to a battery production system. Figure 3 is a structural schematic diagram of the battery production system provided by an embodiment of the present disclosure. As shown in Figure 3, the battery production system 300 may include: a host computer 31, production equipment 32, a production execution system 33 and a workstation equipment 34. The production equipment 32 may include multiple devices, and the host computer 31 has a communication connection with the production equipment 32. The workstation equipment 34 may include multiple devices, and the production execution system 33 has a communication connection with the workstation equipment 34. Here, the host computer 31, production equipment 32 and production execution system 33 are used to implement the first process, so that a module can be obtained, and the production execution system 33 and the workstation equipment 34 are used to implement the second process, so that a battery pack or battery box can be obtained.

[0197] Based on the battery production system 300 provided in FIG3 , an embodiment of the present disclosure provides a battery production method. FIG4 is a flow chart of the battery production method provided in an embodiment of the present disclosure. As shown in FIG4 , the battery production method may include:

[0198] S401. The host computer determines the number of first battery cells based on the current first production work order during the production process of the production equipment of the first process of the battery production line;

[0199] In S401, in the production line corresponding to the first process, the upper computer stores the current first production work order. During the process of producing products by the production equipment of the first process of the battery production line, the upper computer can determine the number of first battery cells according to the current first production work order. The current first production work order can include: new work order product type, new work order module code and new work order product quantity information to be produced, etc. In this way, the current production product type, current production module code and current product quantity information to be produced can be known through the current first production work order.

[0200] Among them, the above-mentioned first number of battery cells is the number of battery cells actually required for the current first production work order. Here, since unqualified battery cells may be produced in the process of producing products by the production equipment of the first process of the battery production line, for example, unqualified battery cells are produced in the side glue and unqualified battery cells are produced in the module pressurization. Taking into account the occurrence of unqualified battery cells, there will be battery cell losses, so the actual number of battery cells required for the current first production work order will be greater than the theoretical number of battery cells required in the current first production work order.

[0201] Then, here, the upper computer can determine the first number of battery cells based on the current first production work order and take into account the number of unqualified battery cells in the production process during the production equipment of the first process of the battery production line, and compare the first number of battery cells with the second number of battery cells for automatic switching of the first production work order.

[0202] S402, the host computer determines the number of second battery cells;

[0203] After the host computer determines the first number of battery cells through S401, in order to realize the automatic switching of the first production work order, the host computer determines the second number of battery cells in S402, wherein the second number of battery cells is the number of qualified battery cells determined for the current first production work order, that is, the production equipment of the first process performs corresponding production on the battery cells. For example, when scanning the battery cell code, the battery cell scanning equipment can determine the number of qualified battery cells, that is, the second number of battery cells. In this way, the host computer can obtain the second number of battery cells.

[0204] Among them, after the upper computer obtains the number of qualified battery cells for the current first production work order, it can know the number of qualified battery cells in the process of producing products by the production equipment of the first process of the battery production line, and compare it with the first number of battery cells to determine whether the switching time of the first production work order has been reached. When the switching time of the first production work order has been reached, the first production work order is switched. In this way, without affecting the current first production work order, the work order can be switched in a more reasonable way, which is conducive to the switching of the production line and improves the production line utilization rate.

[0205] S403: When the number of the second battery cells is greater than or equal to the number of the first battery cells, the host computer sends a control instruction to the first production equipment of the first process and uses the next first production work order as the current first production work order to complete the switching of the first production work order;

[0206] After determining the first number of battery cells through S401 and the second number of battery cells through S402, in S403, the size relationship between the second number of battery cells and the first number of battery cells is compared. When the second number of battery cells is greater than or equal to the first number of battery cells, that is, the number of qualified battery cells is greater than or equal to the actual required number of battery cells, it means that at this time, for the current first production work order, the number of qualified battery cells can already meet the needs of the current first production work order, so no battery cells are needed. Then, the upper computer sends a control instruction to the first production equipment of the first process, wherein the control instruction is used to stop the first production equipment from working. In this way, when the second number of battery cells is greater than or equal to the first number of battery cells, the acquisition of new battery cells can be stopped for the first process, so that the current first production work order, under the premise of normal production, uses the next first production work order as the current first production work order to complete the switching of the first production work order.

[0207] That is to say, when the number of second battery cells is greater than or equal to the number of first battery cells, not only will the acquisition of new battery cells be stopped, but the next first production work order will also be used as the current first production work order to realize the switching of the first production work order. The reason for this is that when the number of second battery cells is greater than or equal to the number of first battery cells, for the current first production work order, the number of qualified battery cells can already meet the needs of the current first production work order, and the next first production work order needs to be executed to continue the production of the next first production work order. Therefore, here, the next first production work order is used as the current first production work order to realize the automatic switching of the first production work order to improve the utilization rate of the production line.

[0208] S404. During the production process of the workstation equipment in the second process of the battery production line, the production execution system determines the number of unfinished battery packs of the workstation equipment for the current second production work order, and sends the number of unfinished battery packs to the workstation equipment.

[0209] After the first process is completed, the next process, i.e., the second process, needs to be carried out. In S404, during the production of products by the workstation equipment of the second process of the battery production line, an automatic guided vehicle (AGV) is used to transport the products. After receiving the products, the workstation equipment performs the corresponding process on the products, thereby completing the second process. The number of workstation equipment can be one or more, and each workstation equipment is a non-continuous workstation, and resources are separately configured to interact with the production execution system.

[0210] In S404, during the process of producing products at the workstation equipment of the second process of the battery production line, the production execution system determines the number of unfinished battery packs for the current second production work order of the workstation equipment, wherein the workstation equipment here may include one or more. For the case of multiple workstations, for the current second production work order of each workstation equipment, the production execution system determines the number of unfinished battery packs and then sends the number of unfinished battery packs to the workstation equipment.

[0211] S405: When the number of unfinished battery packs is zero, the workstation equipment uses the next second production work order as the current second production work order to complete the switching of the second production work order.

[0212] Through S404, the workstation equipment receives the number of unfinished battery packs, and determines whether the time to switch to the second production work order is reached by judging whether the number of unfinished battery packs is zero. If it is not zero, it means that the workstation equipment has not completed all tasks for the current second production work order, that is, it has not completed all products on the current second production work order, so there is no need to switch to the second production work order at this time; if it is zero, it means that the workstation equipment has completed all tasks for the current second production work order, that is, it has completed all products on the current second production work order, so it is necessary to switch to the second production work order at this time.

[0213] Then, when it is necessary to switch the second production work order, the next second production work order is used as the current second production work order, thereby completing the switching of the second production work order.

[0214] In this way, the switching timing is determined by the host computer in the first process to realize the automatic switching of the first production work order, and the switching timing is determined by the production execution system in the second process and the workstation equipment of each workstation to realize the automatic switching of the second production work order, thereby improving the utilization rate of the production line.

[0215] With respect to the above-mentioned first production work order and second production work order, in an optional embodiment, the first production work order is a production module work order, and the second production work order is a production battery pack work order.

[0216] It can be understood that the above-mentioned first production work order is the production work order for the first process, and the first process is the production process of the module, that is, the first production work order is the work order for producing the module, and the above-mentioned second production work order is the production work order for the second process, and the second process is the production process of the battery pack, that is, the second production work order is the work order for producing the battery pack.

[0217] In this way, the embodiment of the present disclosure automatically switches the production module work orders through the host computer, and automatically switches the production battery pack work orders through the interaction between the production execution system and the workstation equipment, so as to shorten the changeover time of the entire production line and improve the utilization rate of the entire production line.

[0218] Since the first production work order is a production module work order, in an optional embodiment, the first production equipment of the first process is the battery cell online equipment, and the second production equipment of the first process is the battery cell code scanning equipment. Correspondingly, the first number of battery cells is the number of battery cells actually required to be put online for the current first production work order, and the second number of battery cells is the number of battery cells that are determined to be qualified for online after battery cell scanning for the current first production work order.

[0219] It can be understood that when the first production work order is a production module work order, since the first production equipment of the first process is the battery cell online equipment, and the second production equipment is the battery cell scanning equipment, then in order to determine the actual number of battery cells required for the first production work order, here, the upper computer only needs to determine the actual number of battery cells required to be put online for the current first production work order based on the current first production work order.

[0220] In addition, in order to determine the number of qualified battery cells for the current first production work order, the host computer determines the number of qualified battery cells to be put into production by scanning the battery cells of the current first production work order through the battery cell scanning device.

[0221] Among them, battery cell scanning is the second process of the production module, which is the process after the battery cell is put into use. The actual number of battery cells put into other processes of the production module can be known from the battery cell scanning equipment, and then compared with the first number of battery cells to determine whether the switching time of the first production work order has been reached. When the switching time of the first production work order is reached, the work order is switched. In this way, without affecting each first production work order, the work order can be switched in a more reasonable way, which is conducive to the switching of the production line and improves the production line utilization rate.

[0222] In this way, the automated switching of production module work orders and the automated switching of production PACK work orders is achieved, which shortens the time for switching production work orders in battery production and improves the utilization rate of production lines in battery production.

[0223] In order to determine the first number of battery cells based on the current first production work order, in an optional embodiment, S401 may include:

[0224] During the production process of the production equipment in the first process of the battery production line, the host computer determines the number of third battery cells based on the current first production work order;

[0225] The host computer obtains the number of the fourth battery cell;

[0226] The host computer determines the sum of the third number of battery cells and the fourth number of battery cells as the first number of battery cells.

[0227] It can be understood that in order to determine the first number of battery cells, the upper computer determines the third number of battery cells based on the current first production work order, wherein the third number of battery cells is the theoretical number of battery cells required to be put online for the current first production work order. That is to say, the upper computer needs to determine the theoretical number of battery cells required to be put online for the current first production work order based on the information in the current first production work order. Here, the third number of battery cells can be directly obtained from the current first production work order, or it can be calculated based on the data in the current first production work order. Here, the embodiment of the present disclosure does not make specific limitations on this.

[0228] In addition, the host computer obtains the fourth number of battery cells, where the fourth number of battery cells is the number of unqualified battery cells in the process of producing products in the first process of the production equipment for the current first production work order. That is to say, the host computer needs to obtain the number of unqualified battery cells generated in the production process for the current first production work order. The production process here may include the production of one process or multiple processes in the above-mentioned module process. Here, the embodiment of the present disclosure does not make specific limitations on this.

[0229] After determining the third number of battery cells and the fourth number of battery cells, the upper computer can use the sum of the third number of battery cells and the fourth number of battery cells as the first number of battery cells. That is to say, the actual number of battery cells required to be put online for the current first production work order is equal to the sum of the theoretical number of battery cells required to be put online for the current first production work order and the number of battery cells that failed to meet the standards during the production process for the current first production work order. It can be seen that the first number of battery cells not only includes the theoretical number of battery cells that need to be put online, but also includes the number of battery cells that failed to meet the standards during the production process. Therefore, the first number of battery cells can effectively represent the actual number of battery cells that need to be put online, providing more accurate data support for the switching of the first production work order, which is conducive to more accurate switching of the first production work order.

[0230] The third number of battery cells mentioned above can be directly obtained from the current first production work order, or can be calculated based on the data in the current first production work order. Therefore, in order to calculate the third number of battery cells based on the data in the current first production work order, in an optional embodiment, the host computer determines the third number of battery cells based on the current first production work order during the production process of the production equipment in the first process of the battery production line. The process may include:

[0231] During the process of producing products by the production equipment of the first process of the battery production line, the upper computer determines the third number of battery cells by multiplying the number of modules required in the current first production work order by the number of battery cells in a single module in the current first production work order.

[0232] It can be understood that the upper computer can obtain the required number of modules from the current first production work order, and can also obtain the number of single module battery cells from the current first production work order, and then multiply the required number of modules by the number of single module battery cells, and determine the obtained product as the third battery cell number, which is the theoretical number of battery cells required to be put online for the current first production work order.

[0233] Since in theory, the possibility of unqualified battery cells that cannot constitute the module during the module production process is not considered, it is sufficient to multiply the required number of modules by the number of battery cells in a single module as the third number of battery cells, and then use the third number of battery cells to calculate the first number of battery cells for switching the first production work order.

[0234] In order to obtain the fourth number of battery cells to obtain the first number of battery cells, in an optional embodiment, the production equipment of the first process includes: a battery cell gluing device and a module pressurizing device. Correspondingly, the above-mentioned host computer obtains the fourth number of battery cells, which may include:

[0235] The host computer receives the number of the fifth battery cell sent from the programmable logic controller;

[0236] The host computer determines the number of the sixth battery cell;

[0237] The host computer determines the fifth number of battery cells or the sixth number of battery cells as the fourth number of battery cells.

[0238] It can be understood that in order to obtain the fourth number of battery cells, the host computer receives the fifth number of battery cells sent from the PLC, wherein the fifth number of battery cells is the number of battery cells that are unqualified in the battery cell gluing equipment for the current first production work order. Here, the PLC has a communication connection with the battery cell gluing equipment, and can know the number of battery cells that are unqualified in the battery cell gluing, and then send it to the host computer, so that the host computer obtains the fifth number of battery cells. That is to say, the host computer can receive the number of battery cells that are unqualified in the battery cell gluing for the current first production work order from the PLC, and use it to determine the fourth number of battery cells.

[0239] The upper computer determines the sixth number of battery cells, where the sixth number of battery cells is the number of battery cells contained in the modules that fail the module pressurization process in the module pressurization equipment for the current first production work order. Based on the communication connection between the upper computer and the module pressurization equipment, the number of modules that fail the module pressurization process can be obtained from the module pressurization equipment, and then the sixth number of battery cells is determined based on the number of modules that fail the module pressurization process.

[0240] After determining the fifth number of battery cells and the sixth number of battery cells, the host computer may determine the fifth number of battery cells as the fourth number of battery cells, or may determine the sixth number of battery cells as the fourth number of battery cells. Here, the embodiment of the present disclosure does not make any specific limitation on this.

[0241] In this way, the host computer can determine the number of unqualified battery cells in the production of one process or multiple processes from the production equipment of the first process, and use it as the fourth number of battery cells, which helps to determine the first number of battery cells, and then use it to more accurately complete the automatic switching of the current first production work order, thereby improving the utilization rate of the production line.

[0242] Furthermore, in order to improve the accuracy of the number of the fourth battery cells, in an optional embodiment, the above method may further include:

[0243] The host computer determines the sum of the number of the fifth battery cells and the number of the sixth battery cells as the number of the fourth battery cells.

[0244] It can be understood that after the upper computer determines the fifth number of battery cells and the sixth number of battery cells, in addition to determining the above-mentioned fifth number of battery cells as the fourth number of battery cells, or determining the above-mentioned sixth number of battery cells as the fifth number of battery cells, it can also determine the sum of the fifth number of battery cells and the sixth number of battery cells as the fourth number of battery cells.

[0245] In this way, the fourth number of battery cells includes both the number of battery cells that are unqualified in the battery cell glue and the number of battery cells contained in the modules that are unqualified during the module pressurization process. The fourth number of battery cells includes as many unqualified battery cells as possible during production at production equipment, thereby improving the accuracy of the fourth number of battery cells, and then improving the accuracy of the first number of battery cells, which helps to more accurately realize the automatic switching of the first production work order.

[0246] In order to determine the number of the sixth battery cells, in an optional embodiment, the host computer may determine the number of the sixth battery cells, which may include:

[0247] The host computer determines the number of modules that fail the module pressurization process in the module pressurization equipment for the current first production work order;

[0248] The host computer multiplies the number of unqualified modules by the number of battery cells in a single module in the current first production work order to determine the number of sixth battery cells.

[0249] It can be understood that the upper computer can count the number of modules that fail to meet the requirements of the current first production work order during the module pressurization process. Here, the upper computer can obtain the number of modules that fail to meet the requirements of the current first production work order during the module pressurization process from the module pressurization equipment. Since the current first production work order also includes the number of single module battery cells, here, after the upper computer determines the number of modules that fail to meet the requirements of the current first production work order during the module pressurization process, it multiplies it by the number of single module battery cells and determines the product as the number of sixth battery cells.

[0250] In this way, the sixth battery cell quantity can be determined, which can be directly determined as the fourth battery cell quantity, or the sum of the sixth battery cell quantity and the fifth battery cell quantity can be determined as the fourth battery cell quantity, which is used to determine the first battery cell quantity, thereby realizing the automatic switching of the first production work order.

[0251] To implement the switching of the first production work order, in an optional embodiment, S403 may include:

[0252] When the second number of battery cells is greater than or equal to the first number of battery cells, the host computer sends a control instruction to the first production equipment of the first process and sends a switching request for the first production work order to the production execution system;

[0253] The production execution system obtains the next first production work order based on the switching request of the first production work order and sends it to the host computer;

[0254] The host computer uses the next first production work order as the current first production work order to complete the switching of the first production work order.

[0255] It can be understood that since the first production equipment of the first process is the battery cell online equipment, after comparison, when the number of the second battery cells is greater than or equal to the number of the first battery cells, the upper computer sends a control instruction to the battery cell online equipment to stop the battery cell online equipment from working, so that the battery cells are not put online anymore, that is, the entire module production line does not put new battery cells online, and sends a switching request for the first production work order to the production execution system. That is to say, not only the control instruction is sent to the battery cell online equipment, but also the switching request for the first production work order is sent to the production execution system.

[0256] Then, after receiving the switching request for the first production work order, the production execution system obtains the next first production work order according to the switching request of the first production work order, wherein the required first production work order is stored in the production execution system, and the upper computer generates a response message for the switching request for the first production work order based on the next first production work order, and sends the response message for the switching request for the first production work order to the upper computer. The upper computer receives the response message from the production execution system for the switching request for the first production work order, wherein the response message includes the next first production work order. In this way, the upper computer can use the next first production work order as the current first production work order, thereby realizing the automatic switching of the first production work order.

[0257] It can be seen that the upper computer can obtain the next first production work order through interaction with the production execution system. After obtaining the next first production work order, it will be used as the current first production work order. In this way, the automatic switching of the first production work order is realized through interaction with the production execution system, which shortens the time consumed in switching the first production work order, thereby improving the utilization rate of the production line.

[0258] In addition, the switching method of the first production work order can be switched once or multiple times continuously. For the case of multiple times of continuous switching, in an optional embodiment, the method can further include:

[0259] When the second number of battery cells is greater than or equal to the first number of battery cells, the upper computer sends a control instruction to the battery cell online equipment, and uses the next first production work order as the current first production work order to complete the switching of the first production work order. After that, the upper computer returns to execute the process of producing products in the production equipment of the first process of the battery production line, and determines the first number of battery cells based on the current first production work order.

[0260] It can be understood that after S403, that is, after completing the switch of the first production work order, return to execute S401, that is, after each execution of S401-S403, execute S401-S403 again to achieve loop execution. In this way, the entire production line can continuously switch the first production work order, shortening the time spent on switching the first production work order each time.

[0261] It should be noted that for the case of multiple consecutive switches, multiple first production work orders need to be stored in the production execution system in the order of production, and the switching request from the host computer needs to be responded to in sequence, so as to realize the switching of the first production work orders in sequence, so that the products on the production line correspond to the first production work orders, thereby improving the utilization rate of the production line.

[0262] It should be noted that, when comparing the second number of battery cells with the first number of battery cells, in addition to obtaining that the second number of battery cells is greater than or equal to the first number of battery cells, it can also be obtained that the second number of battery cells is less than the first number of battery cells. For the case where the second number of battery cells is less than the first number of battery cells, at this time, the number of battery cells that have passed the barcode scanning and have been put online is less than the actual number of battery cells required to be put online. In other words, the number of battery cells that have passed the barcode scanning and have been put online cannot meet the needs of the current first production work order, so the first production work order is not switched.

[0263] In order to enable the production execution system to determine the number of unfinished battery packs for the workstation equipment for the current second production work order, in an optional embodiment, S404 may include:

[0264] During the production process of products at the workstation equipment in the second process of the battery production line, the production execution system determines the number of battery packs completed by the workstation equipment for the current second production work order;

[0265] The production execution system determines the number of unfinished battery packs based on the number of battery packs that the current second production work order workstation equipment needs to complete and the number of completed battery packs, and sends the number of unfinished battery packs to the workstation equipment.

[0266] It can be understood that the production execution system can first determine the number of battery packs completed by the work station equipment for the current second production work order. Then, when the number of completed battery packs is known, the production execution system pre-stores the number of battery packs required to be completed by the work station equipment for the current second production work order. Then, the number of battery packs required to be completed can be subtracted from the number of completed battery packs, and the difference obtained is the number of unfinished battery packs.

[0267] In this way, by pre-storing the number of battery packs required to be completed by the workstation equipment for the current second production work order and obtaining the number of battery packs that have been completed by the workstation equipment for the current second production work order, the number of unfinished battery packs can be determined to determine whether the time has come to switch to the second production work order, which helps to automate the switching of the second production work order, thereby improving the utilization rate of the production line.

[0268] In order to enable the production execution system to determine the number of battery packs completed by the workstation equipment for the current second production work order, in an optional embodiment, the production execution system may determine the number of battery packs completed by the workstation equipment for the current second production work order during the process of producing products at the workstation equipment of the second process of the battery production line, which may include:

[0269] The workstation equipment scans the barcodes of the battery packs entering and leaving the station respectively to obtain the number of battery packs entering and leaving the station;

[0270] The number of battery packs sent by the workstation equipment to the production execution system;

[0271] The production execution system determines the number of battery packs entering and leaving the station as the number of completed battery packs.

[0272] It can be understood that when the product transported by AGV arrives at the work station, the work station equipment scans the PACK code of the product when entering the station, and then performs the corresponding process on it. After the corresponding process is completed, the PACK code is scanned when leaving the station. Here, the work station equipment can determine the number of completed battery packs through the entry and exit scanning records.

[0273] Among them, when the workstation equipment is scanning the battery packs entering and leaving the station, the number of battery packs that have both entered and left the station is counted, and the counted number is the number of completed battery packs. That is to say, the battery packs that can successfully scan the code to enter the station and successfully scan the code to leave the station are completed battery packs, and the corresponding number is the number of completed battery packs.

[0274] In this way, by counting the number of battery packs that have successfully scanned the code to enter the station and successfully scanned the code to exit the station through the workstation equipment, the number of completed battery packs can be obtained, thereby determining whether the time has come to switch to the second production work order, realizing the intelligent switching of the second production work order and improving the utilization rate of the production line.

[0275] To complete the switching of the second production work order, in an optional embodiment, S405 may include:

[0276] When the number of unfinished battery packs is zero, the workstation device sends a switching request for a second production work order for the workstation device to the production execution system;

[0277] The production execution system obtains the next second production work order based on the switching request for the second production work order of the work station device, and sends the next second production work order to the work station device;

[0278] The workstation equipment uses the next second production work order as the current second production work order to complete the switching of the second production work order.

[0279] It can be understood that after receiving the number of unfinished battery packs, the workstation equipment determines whether the number of unfinished battery packs is zero. If it is not zero, it means that the workstation equipment has not completed all tasks for the current second production work order, that is, it has not completed all products on the current second production work order, so there is no need to switch the second production work order at this time; if it is zero, it means that the workstation equipment has completed all tasks for the current second production work order, that is, it has completed all products on the current second production work order, so it is necessary to switch the second production work order at this time.

[0280] In order to switch to the second production work order, when the workstation equipment determines that the number of unfinished battery packs is zero, it sends a switching request for the second production work order of the workstation equipment to the production execution system. The switching request is used by the production execution system to obtain the next second production work order.

[0281] The production execution system receives a switching request for the second production work order from the work station equipment, obtains the next second production work order based on the switching request for the second production work order of the work station equipment, and sends it to the work station equipment, so that the work station equipment uses the next second production work order obtained from the production execution system as the current second production work order.

[0282] Among them, the production execution system can carry the above-mentioned next second production work order into the response message of the switching request of the second production work order of the work station device, and send it to the work station device, so that the work station device can obtain the next second production work order.

[0283] The workstation equipment obtains the next second production work order and uses it as the current second production work order, thereby realizing intelligent switching of the second production work order after the workstation equipment has completed all the tasks of the current second production work order.

[0284] In this way, each workstation equipment can complete the automatic switching of the second production work order through interaction with the production execution system, shortening the time spent on switching the second production work order, realizing intelligent switching of the second production work order, and improving the utilization rate of the production line.

[0285] The following examples are used to describe the production method of the battery in one or more of the above embodiments.

[0286] In this example, in order to realize battery production, it is necessary to automatically complete the switching of production module work orders and production PACK work orders. FIG5 is a flow chart of an example of a method for switching production module work orders provided in an embodiment of the present disclosure. As shown in FIG5 , the specific steps are as follows:

[0287] S501. The host computer calculates the theoretical number of cells D required for online production based on the number of modules required by the current production module work order.

[0288] Specifically, the host computer can obtain the required number of modules and the number of cells in a single module from the current production module work order, and calculate D using the following formula (1): F×G=D (1)

[0289] Among them, F represents the required number of modules, and G represents the number of battery cells in a single module.

[0290] S502: The host computer calculates the actual number of cells that need to be put online;

[0291] Specifically, the following formula (2) is used to calculate the actual number of cells required to be put online: D+B+C×G=E (2)

[0292] Among them, B represents the number of battery cells with unqualified glue (Not Good, NG) (equivalent to the number of battery cells that are unqualified in the battery cell glue in the current production module work order above), C represents the number of NG modules (equivalent to the number of battery cells contained in the modules that are unqualified during the module pressurization process in the current production module work order above), and E represents the actual number of battery cells that need to be put online.

[0293] S503: When A is greater than or equal to E, the host computer stops the cell online equipment from grabbing materials and applies to switch to the preset module work order;

[0294] Among them, A represents the number of battery cells that have passed the code scan and are online. When A is greater than or equal to E, the number of battery cells online can meet the module production required by the work order. Specifically, the upper computer stops the battery cell online device from grabbing materials by sending a control instruction to the battery cell online device. The upper computer sends a switching request to the MES to apply for switching to the preset module work order.

[0295] S504, MES receives the application from the host computer and issues the preset module work order;

[0296] Specifically, after receiving the switching request, MES sends the preset module work order to the host computer, where the preset module work order may include: new work order product type, new work order module code, and new work order product quantity information to be produced, thereby realizing the issuance of new work order product type, new work order module code, and new work order product quantity information to be produced.

[0297] S505: The host computer clears B, C, D, and E, and returns to execute S501.

[0298] Specifically, after obtaining the preset module work order, the host computer recalculates A, B, C, D and E, and then returns to execute S501 to S505.

[0299] In this example, after the current production module work order is completed, the subsequent production module work order is automatically triggered to switch. In this way, the equipment on the production line can automatically obtain subsequent product information without stopping the line, and automatically switch product work orders without stopping the line, greatly improving equipment efficiency.

[0300] In this example, in order to automatically complete the switching of the production PACK work order, FIG6 is a flow chart of an example of a method for switching the production PACK work order provided by an embodiment of the present disclosure. As shown in FIG6 , the specific steps are as follows:

[0301] S601, MES records the number of PACKs completed by the equipment at the workstation;

[0302] Specifically, the PACK segment is different from the module segment. The PACK products are transported by AGV, which transports one PACK at a time. The workstations in the PACK segment are non-continuous, so each individual workstation is separately configured with resources to interact with the MES.

[0303] Each workstation needs to use the PACK code to apply for entry / exit. The MES records the number of PACKs completed by the workstation in real time and compares it with the number of PACKs configured in the current production PACK work order. It calculates the number of unfinished PACKs in the current production PACK work order and sends it to the workstation equipment.

[0304] S602: When the workstation equipment determines that the number of unfinished PACKs is zero, it applies to switch to the preset PACK work order;

[0305] Specifically, the workstation equipment receives the number of unfinished PACKs of the current production PACK work order from the MES. When the number of unfinished PACKs reaches "0", that is, the current production PACK work order task has been completed, it triggers an application to switch the current production PACK work order to the preset PACK work order (equivalent to the above-mentioned next production PACK work order). Specifically, the workstation equipment sends a switching request to the MES;

[0306] S603. MES obtains the preset PACK work order based on the switching request and sends it to the workstation equipment;

[0307] S604: The workstation equipment switches the current production PACK work order to the preset PACK work order.

[0308] Specifically, the MES receives a switching request, obtains the preset PACK work order, and sends it to the work station equipment. The work station equipment switches the current production PACK work order to the preset PACK work order and sends the new work order product type information.

[0309] In this example, after the current production PACK work order is completed, it automatically triggers the switch to the subsequent pending PACK work order. In this way, the workstation equipment can automatically obtain subsequent product information without stopping the machine, and automatically switch product work order changes without stopping the line, greatly improving equipment efficiency.

[0310] An embodiment of the present disclosure provides a battery production method, which is applied to a battery production system, the system comprising: a host computer, production equipment of a first process, workstation equipment of a second process, and a production execution system, the method comprising: during the process of the production equipment of the first process of the battery production line producing products, the host computer determines the first number of battery cells based on the current first production work order, wherein the first number of battery cells is the number of battery cells actually required for the current first production work order, the host computer determines the second number of battery cells, wherein the second number of battery cells is the number of qualified battery cells determined for the current first production work order, when the second number of battery cells is greater than or equal to the first number of battery cells, the host computer sends a control instruction to the first production equipment of the first process, and uses the next first production work order as the current first production work order to complete the switching of the first production work order, wherein the control instruction is used to stop the first production equipment from working, and during the process of the workstation equipment of the second process of the battery production line producing products, the production execution system determines the number of unfinished battery packs of the workstation equipment for the current second production work order, and sends the number of unfinished battery packs to the workstation equipment, when the number of unfinished battery packs is zero , the workstation equipment uses the next second production work order as the current second production work order to complete the switching of the second production work order; that is, in the embodiment of the present disclosure, in the first process of the battery production line, the upper computer determines the number of battery cells actually required for the current first production work order and the number of battery cells that are qualified for the current first production work order, that is, the first number of battery cells and the second number of battery cells, and when the second number of battery cells is greater than or equal to the first number of battery cells, sends a control instruction to the first production equipment to stop working and use the next first production work order as the current first production work order. In addition, in the second process of the battery production line, the production execution system sends the number of unfinished battery packs determined by the workstation equipment for the current second production work order to the workstation equipment, so that when the workstation equipment determines to complete the task of the current second production work order based on the number of unfinished battery packs, it uses the next second production work order as the current second production work order, thereby realizing automatic switching of the second production work order. In this way, the switching between the first production work order and the second production work order is completed intelligently, shortening the changeover time of switching production work orders on the production line, thereby improving the utilization rate of the production line.

[0311] Based on the same inventive concept as the above embodiments, the present disclosure provides a battery production system. As shown in FIG3 , the battery production system 300 may include:

[0312] The host computer 31 is configured to determine, during production of a product by the production equipment 32 of the first process of the battery production line, the first number of battery cells based on the current first production work order; wherein the first number of battery cells is the number of battery cells actually required for the current first production work order;

[0313] The host computer 31 is configured to determine the second number of battery cells; wherein the second number of battery cells is the number of qualified battery cells determined for the current first production work order;

[0314] The upper computer 31 is configured to, when the number of the second battery cells is greater than or equal to the number of the first battery cells, send a control instruction to the first production equipment of the first process and use the next first production work order as the current first production work order to complete the switching of the first production work order; wherein the control instruction is used to stop the operation of the first production equipment;

[0315] The production execution system 33 is configured to determine the number of unfinished battery packs at the workstation 34 for the current second production work order during the production of products at the workstation 34 in the second process of the battery production line, and send the number of unfinished battery packs to the workstation 34;

[0316] The workstation device 34 is used to use the next second production work order as the current second production work order when the number of unfinished battery packs is zero, so as to complete the switching of the second production work order.

[0317] In an optional embodiment, the first production work order is a production module work order, and the second production work order is a production battery pack work order.

[0318] In an optional embodiment, the first production equipment of the first process is a cell online device, and the second production equipment of the first process is a cell code scanning device. Correspondingly,

[0319] The first number of battery cells is the number of battery cells that are actually required to be put into production for the current first production work order; the second number of battery cells is the number of battery cells that are qualified to be put into production after the battery cell code is scanned for the current first production work order.

[0320] In an optional embodiment, the host computer 31 is further configured to:

[0321] During product production by production equipment in the first process of the battery production line, the third number of battery cells is determined based on the current first production work order; wherein the third number of battery cells is the theoretical number of battery cells required to be put into production for the current first production work order;

[0322] Obtaining a fourth number of battery cells; wherein the fourth number of battery cells is the number of unqualified battery cells in the process of producing products in the first process of the production equipment 32 for the current first production work order;

[0323] The sum of the third number of battery cells and the fourth number of battery cells is determined as the first number of battery cells.

[0324] In an optional embodiment, the host computer 31 is further configured to:

[0325] During the production process of the production equipment 32 in the first process of the battery production line, the product of the number of modules required in the current first production work order and the number of battery cells in a single module in the current first production work order is determined as the third number of battery cells.

[0326] In an optional embodiment, the production equipment of the first process includes: a battery cell gluing device and a module pressurizing device. Correspondingly, the host computer 31 is further used to:

[0327] Receive a fifth number of battery cells sent from a programmable logic controller; wherein the fifth number of battery cells is the number of battery cells that failed to meet the requirements of the battery cell gluing process performed on the battery cell gluing equipment for the current first production order;

[0328] Determine the sixth number of battery cells; wherein the sixth number of battery cells is the number of battery cells contained in the module that failed the module pressurization process in the module pressurization equipment for the current first production work order;

[0329] The fifth number of battery cells or the sixth number of battery cells is determined as the fourth number of battery cells.

[0330] In an optional embodiment, the host computer 31 is further configured to:

[0331] The sum of the fifth number of battery cells and the sixth number of battery cells is determined as the fourth number of battery cells.

[0332] In an optional embodiment, the host computer 31 is further configured to:

[0333] Determine the number of modules that failed the module pressurization process in the module pressurization equipment for the current first production work order;

[0334] The product of the number of unqualified modules and the number of battery cells in a single module in the current first production work order is determined as the sixth number of battery cells.

[0335] In an optional embodiment, the host computer 31 is further configured to:

[0336] When the second number of battery cells is greater than or equal to the first number of battery cells, a control instruction is sent to the first production equipment of the first process, and a switching request for the first production work order is sent to the production execution system 33;

[0337] The production execution system 33 is further configured to obtain the next first production work order based on the switching request of the first production work order and send it to the host computer 31;

[0338] The host computer 31 is further configured to use the next first production work order as the current first production work order to complete the switching of the first production work order.

[0339] In an optional embodiment, the host computer 31 is further configured to:

[0340] When the number of the second battery cells is greater than or equal to the number of the first battery cells, a control instruction is sent to the first production equipment of the first process, and the next first production work order is used as the current first production work order to complete the switching of the first production work order. Then, the process of producing products by the production equipment 32 of the first process of the battery production line is returned to determine the number of the first battery cells based on the current first production work order.

[0341] In an optional embodiment, the production execution system 33 is further configured to:

[0342] During the production process of products by the workstation equipment 34 in the second process of the battery production line, the number of battery packs completed by the workstation equipment 34 is determined for the current second production work order;

[0343] The number of unfinished battery packs is determined based on the number of battery packs that need to be completed by the current second production work order station equipment 34 and the number of completed battery packs.

[0344] In an optional embodiment, the workstation device 34 is further configured to:

[0345] Scan the barcodes of the battery packs entering and leaving the station respectively to obtain the number of battery packs entering and leaving the station, and send the number of battery packs entering and leaving the station to the production execution system 33;

[0346] The production execution system 33 is further configured to determine the number of battery packs that enter and exit the station as the number of completed battery packs.

[0347] In an optional embodiment, the production execution system 33 is further configured to:

[0348] Determine the number of unfinished battery packs at the workstation device 34 for the current second production work order, and send the number of unfinished battery packs to the workstation device 34 ;

[0349] The workstation device 34 is further configured to send a switching request for a second production work order for the workstation device 34 to the production execution system 33 when the number of unfinished battery packs is zero;

[0350] The production execution system 33 is further configured to obtain a next second production work order based on a switching request for the second production work order of the work station device 34 and send the next second production work order to the work station device 34;

[0351] The workstation device 34 is further configured to use the next second production work order as the current second production work order to complete the switching of the second production work order.

[0352] Those skilled in the art will appreciate that the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of hardware embodiments, software embodiments, or embodiments combining software and hardware. Furthermore, the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) containing computer-usable program code.

[0353] The present disclosure is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present disclosure. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0354] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0355] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0356] The above description is merely a preferred embodiment of the present disclosure and is not intended to limit the scope of protection of the present disclosure. Industrial Applicability

[0357] An embodiment of the present disclosure provides a battery production method and system, which is applied to a battery production system, the system comprising: a host computer, production equipment of a first process, workstation equipment of a second process, and a production execution system, the method comprising: during the process of the production equipment of the first process of the battery production line producing products, the host computer determines the first number of battery cells based on the current first production work order, wherein the first number of battery cells is the number of battery cells actually required for the current first production work order, the host computer determines the second number of battery cells, wherein the second number of battery cells is the number of battery cells determined to be qualified for the current first production work order, when the second number of battery cells is greater than or equal to the first number of battery cells, the host computer sends a control instruction to the first production equipment of the first process, and uses the next first production work order as the current first production work order to complete the switching of the first production work order, wherein the control instruction is used to stop the first production equipment from working, and during the process of the workstation equipment of the second process of the battery production line producing products, the production execution system determines the number of unfinished battery packs of the workstation equipment for the current second production work order, and sends the number of unfinished battery packs to the workstation equipment, when the number of unfinished battery packs is At zero o'clock, the workstation equipment uses the next second production work order as the current second production work order to complete the switching of the second production work order; that is, in the embodiment of the present disclosure, in the first process of the battery production line, the upper computer determines the number of battery cells actually required for the current first production work order and the number of battery cells that are qualified for the current first production work order, that is, the first number of battery cells and the second number of battery cells, and when the second number of battery cells is greater than or equal to the first number of battery cells, sends a control instruction to the first production equipment to stop working and use the next first production work order as the current first production work order. In addition, in the second process of the battery production line, the production execution system sends the number of unfinished battery packs determined by the workstation equipment for the current second production work order to the workstation equipment, so that when the workstation equipment determines to complete the task of the current second production work order based on the number of unfinished battery packs, it uses the next second production work order as the current second production work order, thereby realizing automatic switching of the second production work order. In this way, the switching between the first production work order and the second production work order is completed intelligently, shortening the changeover time of switching production work orders on the production line, thereby improving the utilization rate of the production line.

Claims

1. A battery production method, applied to a battery production system, the battery production system comprising: The host computer, the production equipment of the first process, the workstation equipment of the second process and the production execution system, the method includes: The host computer determines the first number of battery cells based on the current first production work order during the process of the production equipment of the first process of the battery production line producing products; wherein the first number of battery cells is the number of battery cells actually required for the current first production work order; The host computer determines the second number of battery cells; wherein the second number of battery cells is the number of qualified battery cells determined for the current first production work order; When the second number of battery cells is greater than or equal to the first number of battery cells, the host computer sends a control instruction to the first production equipment of the first process, and uses the next first production work order as the current first production work order to complete the switching of the first production work order; wherein the control instruction is used to stop the first production equipment from working; The production execution system determines the number of unfinished battery packs of the workstation equipment for the current second production work order during the production of products by the workstation equipment of the second process of the battery production line, and sends the number of unfinished battery packs to the workstation equipment; When the number of unfinished battery packs is zero, the workstation equipment uses the next second production work order as the current second production work order to complete the switching of the second production work order.

2. The method of claim 1, wherein: The first production work order is a production module work order, and the second production work order is a production battery pack work order.

3. The method of claim 2, wherein: The first production equipment of the first process is the battery cell online equipment, and the second production equipment of the first process is the battery cell code scanning equipment. Correspondingly, The first number of battery cells is the number of battery cells actually required to be put into production for the current first production work order; the second number of battery cells is the number of battery cells that are qualified to be put into production after scanning the battery cell code for the current first production work order.

4. The method of claim 3, wherein: The host computer determines the first battery cell quantity based on the current first production work order during the process of the production equipment of the first process of the battery production line producing the product, including: The host computer determines the third number of battery cells based on the current first production work order during the production process of the production equipment of the first process of the battery production line; wherein the third number of battery cells is the number of battery cells theoretically required to be put online for the current first production work order; The host computer obtains the fourth number of battery cells; wherein the fourth number of battery cells is the number of unqualified battery cells in the process of producing products by the production equipment of the first process for the current first production work order; The host computer determines the sum of the third number of battery cells and the fourth number of battery cells as the first number of battery cells.

5. The method of claim 4, wherein: The host computer determines the number of third battery cells based on the current first production work order during the process of the production equipment of the first process of the battery production line producing the product, including: During the process of producing products by the production equipment of the first process of the battery production line, the host computer determines the third number of battery cells by multiplying the number of modules required in the current first production work order by the number of battery cells in a single module in the current first production work order.

6. The method of claim 4, wherein: The production equipment of the first process includes: a battery cell gluing device and a module pressurizing device. Correspondingly, the host computer obtains the number of the fourth battery cells, including: The host computer receives the fifth number of battery cells sent from the programmable logic controller; wherein the fifth number of battery cells is the number of battery cells that are unqualified in the battery cell gluing process of the battery cell gluing equipment for the current first production order; The host computer determines the sixth number of battery cells; wherein the sixth number of battery cells is the number of battery cells contained in the module that fails to meet the requirements during the module pressurization process of the module pressurization equipment for the current first production order; The host computer determines the fifth number of battery cells or the sixth number of battery cells as the fourth number of battery cells.

7. The method of claim 6, wherein: The method further comprises: The host computer determines the sum of the fifth number of battery cells and the sixth number of battery cells as the fourth number of battery cells.

8. The method of claim 6, wherein: The host computer determines the number of the sixth battery cells, including: The host computer determines the number of modules that are unqualified during the module pressurization process of the module pressurization equipment for the current first production work order; The host computer determines the sixth number of battery cells by multiplying the number of unqualified modules by the number of battery cells in a single module in the current first production work order.

9. The method according to any one of claims 1 to 8, wherein: When the second number of battery cells is greater than or equal to the first number of battery cells, the host computer sends a control instruction to the first production equipment of the first process, and uses the next first production work order as the current first production work order to complete the switching of the first production work order, including: When the second number of battery cells is greater than or equal to the first number of battery cells, the host computer sends a control instruction to the first production equipment of the first process, and sends a switching request for the first production work order to the production execution system; The production execution system obtains the next first production work order based on the switching request of the first production work order, and sends it to the host computer; The host computer uses the next first production work order as the current first production work order to complete the switching of the first production work order.

10. The method according to any one of claims 1 to 9, wherein: The method further comprises: When the second number of battery cells is greater than or equal to the first number of battery cells, the host computer sends a control instruction to the first production equipment of the first process, and uses the next first production work order as the current first production work order to complete the switching of the first production work order. Then, the host computer returns to execute the process of producing products by the production equipment of the first process of the battery production line, and determines the first number of battery cells based on the current first production work order.

11. The method according to any one of claims 1 to 9, wherein: The production execution system determines the number of unfinished battery packs of the workstation equipment for the current second production work order during the process of the workstation equipment producing products in the second process of the battery production line, and sends the number of unfinished battery packs to the workstation equipment, including: The production execution system determines the number of battery packs completed by the workstation equipment in the second process of the battery production line according to the current second production work order during the production of products by the workstation equipment in the second process of the battery production line; The production execution system determines the number of unfinished battery packs based on the number of battery packs required to be completed by the workstation equipment for the current second production work order and the number of completed battery packs, and sends the number of unfinished battery packs to the workstation equipment.

12. The method of claim 11, wherein: The production execution system determines the number of battery packs completed by the workstation equipment in the second process of the battery production line according to the current second production work order, including: The workstation equipment scans the codes of the battery packs entering and leaving the station respectively to obtain the number of battery packs entering and leaving the station; The workstation equipment sends the number of the battery packs entering and leaving the station to the production execution system; The production execution system determines the number of battery packs that enter and exit the station as the number of completed battery packs.

13. The method according to any one of claims 1 to 12, wherein: When the number of unfinished battery packs is zero, the workstation equipment uses the next second production work order as the current second production work order to complete the switching of the second production work order, including: When the number of unfinished battery packs is zero, the workstation device sends a switching request for a second production work order of the workstation device to the production execution system; The production execution system obtains a next second production work order based on a switching request for the second production work order of the workstation device, and sends the next second production work order to the workstation device; The workstation equipment uses the next second production work order as the current second production work order to complete the switching of the second production work order.

14. A battery production system, comprising: The host computer, the production equipment of the first process, the workstation equipment of the second process and the production execution system include: The host computer is used to determine the first number of battery cells based on the current first production work order during the process of producing products by the production equipment of the first process of the battery production line; wherein the first number of battery cells is the number of battery cells actually required for the current first production work order; The host computer is used to determine the second number of battery cells; wherein the second number of battery cells is the number of qualified battery cells determined for the current first production work order; The host computer is used to send a control instruction to the first production equipment of the first process when the number of the second battery cells is greater than or equal to the number of the first battery cells, and use the next first production work order as the current first production work order to complete the switching of the first production work order; wherein the control instruction is used to stop the first production equipment from working; The production execution system is used to determine the number of unfinished battery packs of the workstation equipment for the current second production work order during the process of the workstation equipment of the second process of the battery production line producing products, and send the number of unfinished battery packs to the workstation equipment; The workstation equipment is used to use the next second production work order as the current second production work order when the number of unfinished battery packs is zero, so as to complete the switching of the second production work order.

15. The system of claim 14, wherein: The first production work order is a production module work order, and the second production work order is a production battery pack work order.

16. The system of claim 15, wherein: The first production equipment of the first process is the battery cell online equipment, and the second production equipment of the first process is the battery cell code scanning equipment. Correspondingly, The first number of battery cells is the number of battery cells actually required to be put into production for the current first production work order; the second number of battery cells is the number of battery cells that are qualified to be put into production after scanning the battery cell code for the current first production work order.

17. The system of claim 16, wherein: The host computer is also used for: During the process of producing products by the production equipment of the first process of the battery production line, the third number of battery cells is determined based on the current first production work order; wherein the third number of battery cells is the number of battery cells theoretically required to be put into production for the current first production work order; Obtaining a fourth number of battery cells; wherein the fourth number of battery cells is the number of battery cells that are unqualified in the process of producing products by the production equipment of the first process for the current first production work order; The sum of the third number of battery cells and the fourth number of battery cells is determined as the first number of battery cells.

18. The system of claim 17, wherein: The host computer is also used for: During the process of producing products by the production equipment of the first process of the battery production line, the product of the number of modules required in the current first production work order and the number of battery cells in a single module in the current first production work order is determined as the third number of battery cells.

19. The system of claim 17, wherein: The production equipment of the first process includes: battery cell gluing equipment and module pressurizing equipment. Correspondingly, the host computer is also used for: Receive a fifth number of battery cells sent from a programmable logic controller; wherein the fifth number of battery cells is the number of battery cells that are unqualified in the battery cell gluing process performed on the battery cell gluing equipment for the current first production order; Determine the sixth number of battery cells; wherein the sixth number of battery cells is the number of battery cells contained in the module that fails to meet the requirements during the module pressurization process of the module pressurization equipment for the current first production order; The fifth number of battery cells or the sixth number of battery cells is determined as the fourth number of battery cells.

20. The system of claim 19, wherein: The host computer is also used for: The sum of the fifth number of battery cells and the sixth number of battery cells is determined as the fourth number of battery cells.

21. The system of claim 19, wherein: The host computer is also used for: Determine the number of modules that are unqualified during the module pressurization process of the module pressurization device for the current first production work order; The sixth number of battery cells is determined by multiplying the number of unqualified modules by the number of battery cells in a single module in the current first production work order.

22. A system as claimed in any one of claims 14 to 21, wherein: The host computer is further configured to send a control instruction to the first production equipment of the first process and send a switching request for the first production work order to the production execution system when the number of the second battery cells is greater than or equal to the number of the first battery cells; The production execution system is further used to obtain the next first production work order based on the switching request of the first production work order, and send it to the host computer; The host computer is also used to use the next first production work order as the current first production work order to complete the switching of the first production work order.

23. A system as claimed in any one of claims 14 to 22, wherein: The host computer is also used for: When the second number of battery cells is greater than or equal to the first number of battery cells, a control instruction is sent to the first production equipment of the first process, and the next first production work order is used as the current first production work order to complete the switching of the first production work order. Then, the process of producing products by the production equipment of the first process of the battery production line is returned to determine the first number of battery cells based on the current first production work order.

24. The system of any one of claims 14 to 22, wherein: The production execution system is also used for: During the production process of the product by the workstation equipment of the second process of the battery production line, the current second production work order is determined The number of battery packs completed by the workstation equipment; Based on the number of battery packs that the workstation equipment needs to complete for the current second production work order and the number of completed battery packs, the number of unfinished battery packs is determined and sent to the workstation equipment.

25. The system of claim 24, wherein: include: The workstation equipment is further used to scan the codes of the battery packs entering and leaving the station, obtain the number of battery packs entering and leaving the station, and send the number of battery packs entering and leaving the station to the production execution system; The production execution system is further used to determine the number of battery packs entering and leaving the station as the number of completed battery packs.

26. The system of any one of claims 14 to 25, wherein: include: The workstation device is further configured to send a switching request for a second production work order for the workstation device to the production execution system when the number of the unfinished battery packs is zero; The production execution system is further configured to obtain a next second production work order based on a switching request for the second production work order of the workstation device, and send the next second production work order to the workstation device; The workstation equipment is also used to use the next second production work order as the current second production work order to complete the switching of the second production work order.

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