Battery cell entry and exit system and method

Abstract

The present application discloses a system and method for the entry and exit of a battery cell, which is applied to a liquid injection host computer, wherein, in response to the battery cell to be injected arriving at the front weighing station, the battery cell code of the battery cell is sent to the production execution system for verification to obtain the verification result; in response to the verification result being successful, the front weighing data of the battery cell is obtained; in response to the front weighing data being in the first weight range, the withstand voltage test result of the battery cell transported to the test station is obtained; in response to the withstand voltage test result meeting the preset withstand voltage requirement, the battery cell entry signal is sent to the production execution system; in response to the production execution system verifying that the battery cell entry signal is successful, the battery cell is continued to be transported to the injection station and the rear weighing station to complete the injection of the battery cell and obtain the rear weighing data of the battery cell; in response to the rear weighing data being in the second weight range, the entry and exit of the battery cell in the injection process is completed. In this way, the battery cell data is traced in real time to improve the stability of battery cell injection.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a system and method for entering and exiting a battery cell. Background Art

[0002] In the related technology, it is crucial to obtain the real-time production data of the battery cell when the battery cell enters the liquid injection process. If the real-time production data cannot be traced, it will affect the control of the battery cell during the liquid injection process, thereby affecting the stability and accuracy of the battery cell during the liquid injection process. Summary of the invention

[0003] The main purpose of this application is to provide an entry and exit system and method, which aims to achieve real-time tracing of battery cell data entering the liquid injection stage, thereby improving the stability and accuracy of the battery cells in the liquid injection stage.

[0004] To achieve the above purpose, the present application proposes a method for entering and exiting a battery cell, which is applied to a liquid injection host computer. The method includes:

[0005] In response to the battery cell to be injected arriving at the front weighing station, the battery cell code of the battery cell is sent to the production execution system for verification to obtain the verification result;

[0006] In response to the verification result being a successful verification, obtaining the front weighing data of the battery cell;

[0007] In response to the previous weighing data being within a first weight range, obtaining a withstand voltage test result of the battery cell transported to a test station;

[0008] In response to the withstand voltage test result meeting the preset withstand voltage requirement, sending a cell entry signal to the production execution system;

[0009] In response to the production execution system verifying that the cell entry signal is successful, continue to transport the cell to the liquid injection station and the post-weighing station to complete the liquid injection of the cell and obtain the post-weighing data of the cell;

[0010] In response to the post-weighing data being within the second weight range, the battery cell is completed in and out of the injection process.

[0011] Through the above scheme, on the one hand, with the help of the interaction between the liquid injection host computer and MES, the battery cell code, pre-weighing data and voltage test results of the battery cell to be injected can be verified; in this way, the relevant data of the battery cell entering the liquid injection link can be verified and traced in real time, so as to prevent abnormal battery cells entering the liquid injection link; on the other hand, the liquid injection host computer successfully verifies the battery cell entry signal with the help of MES on the basis of the successful verification of multiple parameters of the battery cell to be injected, and correspondingly executes the battery cell injection and the post-weighing of the battery cell after injection, so as to further improve the stability and efficiency of the battery cell in the liquid injection link.

[0012] In an embodiment of the present application, in response to the battery cell to be filled with liquid arriving at the front weighing station, the battery cell code of the battery cell is sent to the production execution system for verification to obtain the verification result, including: in response to the battery cell arriving at the front weighing station, based on the front scanning signal sent by the controller, controlling the scanning mechanism to scan the battery cell to obtain the battery cell code of the battery cell; sending the battery cell code to the production execution system so that the production execution system verifies the battery cell code to obtain the verification result.

[0013] Through the above solution, the obtained battery cell code can be verified through the interaction between multiple devices (liquid injection host computer, code scanning mechanism and MES), which can improve the accuracy and efficiency of the obtained battery cell code.

[0014] In an embodiment of the present application, before the sending of the battery cell code to the production execution system so that the production execution system verifies the battery cell code and obtains the verification result, the entry and exit method also includes: performing injection qualification verification on the battery cell code to obtain a verification result; the sending of the battery cell code to the production execution system so that the production execution system verifies the battery cell code to obtain the verification result includes: in response to the verification result being successful, sending the battery cell code to the production execution system so that the production execution system verifies the battery cell code to obtain the verification result.

[0015] Through the above scheme, the cell code is verified for liquid injection qualification with the help of the liquid injection host computer, and when the liquid injection qualification verification is passed, the cell code is verified with the help of MES. In this way, on the one hand, the accuracy of the obtained cell code can be improved so as to accurately determine the cell entering the liquid injection process; on the other hand, it provides a basis for the subsequent liquid injection host computer and MES to trace the cell data entering the liquid injection process in real time based on the cell code.

[0016] In an embodiment of the present application, the entry and exit method also includes: in response to the verification result being successful, sending the battery cell code to the controller to receive the battery cell data code sent by the controller that matches the battery cell code; writing the battery cell data code into a preset battery cell database to update the preset battery cell database.

[0017] Through the above scheme, based on the cell code of the battery cell, the relevant parameters in the preset battery cell database are updated in real time to realize the storage of real-time data of the battery cell in the injection process, thereby providing parameter support for subsequent viewing of the actual production data of the battery cell or performing related operations on the battery cell.

[0018] In an embodiment of the present application, in response to the verification result being a successful verification, obtaining the front weighing data of the battery cell includes: in response to the verification result being a successful verification, based on the front weighing signal sent by the controller, controlling the front weighing mechanism deployed on the front weighing station to weigh the battery cell and obtain the front weighing data; in response to the front weighing data being within a first weight range, obtaining the voltage withstand test result corresponding to the battery cell transported to the test station includes: in response to the front weighing data being within the first weight range, transporting the battery cell to the test station under the action of the controller; based on the test signal sent by the controller, controlling the test mechanism deployed on the test station to perform a voltage withstand test on the battery cell and obtain the voltage withstand test result.

[0019] Through the above scheme, the liquid injection host computer, under the action of the controller, successively implements pre-weighing and withstand voltage testing of the battery cells, and only when the acquired pre-weighing data meets a certain weight range, the withstand voltage test of the battery cells is performed. In this way, on the one hand, the data of each link of the battery cell entering the liquid injection link can be traced in real time, and on the other hand, the stability and accuracy of the battery cell in the liquid injection link can be improved based on the verification of the pre-weighing data, that is, whether it is within the first weight range.

[0020] In an embodiment of the present application, the battery cell is the first battery cell to enter the front weighing station in the current shift, and the entry and exit method also includes: using standard weights to perform a first-piece inspection on the front weighing mechanism to obtain the front weighing mechanism whose first-piece inspection data meets a preset error range.

[0021] Through the above scheme, with the help of standard weights, the front weighing mechanism is first inspected before weighing the first battery cell entering the front weighing station in the current shift, so as to ensure that the front weighing data obtained by weighing other battery cells that enter the injection process or enter the station later in the current shift (including the first battery cell entering the station in the current shift) are more accurate.

[0022] In an embodiment of the present application, in response to the production execution system verifying that the battery cell entry signal is successful, continuing to transport the battery cell to the liquid filling station and the post-weighing station to complete the liquid filling of the battery cell and obtain the post-weighing data of the battery cell, including: in response to the production execution system verifying that the battery cell entry signal is successful and the battery cell is transported to the liquid filling station, based on the liquid filling signal sent by the controller, controlling the liquid filling mechanism deployed at the liquid filling station to inject liquid into the battery cell to complete the liquid filling of the battery cell; in response to the completion of battery cell filling and the battery cell being transported to the post-weighing station, based on the post-weighing signal sent by the controller, controlling the post-weighing mechanism deployed at the post-weighing station to post-weigh the battery cell to obtain the post-weighing data.

[0023] Through the above scheme, after the cell entry signal is successfully verified, the injection host computer transports the cells for injection in sequence, and weighs them after the injection is completed to obtain the post-weighing data. In this way, the stability and accuracy of the cell in the injection process can be improved by obtaining each parameter in the entry and exit links.

[0024] In an embodiment of the present application, the battery cell is the first battery cell to enter the rear weighing station in the current shift, and the entry and exit method also includes: using standard weights to perform a first-piece inspection on the rear weighing mechanism to obtain the rear weighing mechanism whose first-piece inspection data meets a preset error range.

[0025] Through the above scheme, with the help of standard weights, the first battery cell entering the station in the current shift is first inspected on the post-weighing mechanism before weighing, so as to ensure the accuracy of data measurement during the post-weighing of other battery cells that enter the injection process or enter the station later in the current shift (including the first battery cell entering the station in the current shift).

[0026] In an embodiment of the present application, the entry and exit method includes: based on the cell data encoding that matches the cell code, the front weighing data, the rear weighing data, the weight difference and the voltage test result are written into a preset cell database to update the preset cell database; wherein the weight difference is the difference between the rear weighing data and the front weighing data.

[0027] Through the above scheme, the liquid injection host computer writes the acquired battery cell production data into the preset battery cell database based on the battery cell data encoding that matches the battery cell code, so as to store the real-time data of the battery cell in the liquid injection process, thereby providing parameter support for subsequent viewing of the actual production data of the battery cell or performing related operations on the battery cell.

[0028] In an embodiment of the present application, the entry and exit method also includes: based on the post-scanning signal sent by the controller, controlling the scanning mechanism to scan the battery cell at the post-weighing station to obtain the battery cell code; sending the battery cell code to the controller to obtain the injection data corresponding to the battery cell at the injection station sent by the controller, and storing the injection data in a preset battery cell database.

[0029] Through the above scheme, based on the cell code of the battery cell, the relevant parameters in the preset battery cell database are updated in real time to store the injection data of the battery cell in the injection process, thereby providing parameter support for subsequent viewing of the battery cell injection data or performing related operations on the battery cell.

[0030] In an embodiment of the present application, the injection host computer includes an entry and exit display interface, and the entry and exit display interface includes: an entry and exit data frame, and the entry and exit method includes: in response to the battery cell arriving at the front weighing station, displaying the battery cell code of the battery cell in the entry and exit data frame, and sending the battery cell code to the production execution system for verification to obtain the verification result; in response to the verification result being a successful verification, displaying the front weighing data of the battery cell in the entry and exit data frame, and in response to the front weighing data being within the first weight range, displaying the transport data in the entry and exit data frame. The voltage test result of the battery cell is input to the test station; in response to the voltage test result satisfying the preset voltage requirement, the battery cell entry signal is displayed in the entry and exit data frame, and the battery cell entry signal is sent to the production execution system; in response to the production execution system verifying that the battery cell entry signal is successful, the battery cell is continued to be transported to the liquid filling station and the post-weighing station, and the liquid filling data of the battery cell and the post-weighing data of the battery cell are displayed in sequence in the entry and exit data frame; in response to the post-weighing data being within the second weight range, the entry and exit of the battery cell in the liquid filling process is completed.

[0031] Through the above scheme, not only can the relevant data of the battery cells entering the liquid injection link be verified and traced in real time, thereby preventing abnormal battery cells entering the liquid injection link, but also it can be convenient for relevant operators to view and analyze the real-time data of the battery cells; on the one hand, the liquid injection host computer successfully verifies the battery cell entry signal with the help of MES on the basis of successful verification of multiple parameters of the battery cells to be injected and displaying them, and correspondingly executes the battery cell injection and the post-injection weighing of the battery cell, so as to further improve the stability and efficiency of the battery cell in the liquid injection link.

[0032] The embodiment of the present application also provides a cell entry and exit system, the entry and exit system comprising: a liquid injection host computer, a controller and a production execution system, wherein:

[0033] In response to the battery cell to be injected arriving at the front weighing station, the injection host computer sends the battery cell code of the battery cell to the production execution system for verification to obtain the verification result;

[0034] In response to the verification result indicating that the verification is successful, the liquid injection host computer obtains the front weighing data of the battery cell;

[0035] The liquid injection host computer obtains the withstand voltage test result of the battery cell transported to the test station in response to the previous weighing data being in the first weight range;

[0036] The liquid injection host computer sends a cell entry signal to the production execution system in response to the withstand voltage test result meeting the preset withstand voltage requirement;

[0037] The liquid injection host computer responds to the production execution system verifying that the cell entry signal is successful, and under the action of the controller, continues to transport the cell to the liquid injection station and the post-weighing station to complete the liquid injection of the cell and obtain the post-weighing data of the cell;

[0038] In response to the post-weighing data being in the second weight range, the injection host computer completes the entry and exit of the battery cell in the injection process.

[0039] The embodiment of the present application provides a system and method for the entry and exit of battery cells. The entry and exit method is applied to a liquid injection host computer, and the interaction between the liquid injection host computer and the MES is used to verify the battery cell code, pre-weighing data, and voltage test results of the battery cells to be injected. In this way, the relevant data of the battery cells entering the liquid injection link can be verified and traced in real time, so as to prevent abnormal battery cells entering the liquid injection link. In addition, the liquid injection host computer successfully verifies the battery cell entry signal with the help of MES on the basis of successful verification of multiple parameters of the battery cells to be injected, and correspondingly executes the battery cell injection and post-weighing of the battery cells after injection, so as to further improve the stability and efficiency of the battery cells in the liquid injection link.

[0040] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0042] Figure 1 Schematic diagram of the process of entering and exiting the battery cell provided in some embodiments of the present application Figure 1 ;

[0043] Figure 2 Schematic diagram of the process of entering and exiting the battery cell provided in some embodiments of the present application Figure 2 ;

[0044] Figure 3 Schematic diagram of the process of entering and exiting the battery cell provided in some embodiments of the present application Figure 3 ;

[0045] Figure 4 Schematic diagram of the process of entering and exiting the battery cell provided in some embodiments of the present application Figure 4 ;

[0046] Figure 5 Schematic diagram of the process of entering and exiting the battery cell provided in some embodiments of the present application Figure 5 ;

[0047] Figure 6 A schematic diagram of an entry and exit display interface shown in some embodiments of the present application;

[0048] Figure 7 A schematic diagram of a display interface corresponding to a liquid injection host computer provided in an embodiment of the present application Figure 1 ;

[0049] Figure 8 A schematic diagram of a display interface corresponding to a liquid injection host computer provided in an embodiment of the present application Figure 2 ;

[0050] Fig. 9 A schematic diagram of a display interface corresponding to a liquid injection host computer provided in an embodiment of the present application Figure 3 ;

[0051] Fig.10 A schematic diagram of a display interface corresponding to a liquid injection host computer provided in an embodiment of the present application Figure 4 ;

[0052] Fig.11 A schematic diagram of a display interface corresponding to a liquid injection host computer provided in an embodiment of the present application Figure 5 ;

[0053] Fig.12 A schematic diagram of a display interface corresponding to a liquid injection host computer provided in an embodiment of the present application Figure 6 ;

[0054] Fig.13 A schematic diagram of a display interface corresponding to a liquid injection host computer provided in an embodiment of the present application Figure 7 ;

[0055] Fig.14 A schematic diagram of the composition structure of a cell entry and exit system provided in some embodiments of the present application;

[0056] Fig.15 A schematic diagram of implementing code scanning and weighing entry verification for a battery cell entry and exit system provided in some embodiments of the present application;

[0057] Fig.16 A schematic diagram of implementing Hipot entry and exit of a cell entry and exit system provided in some embodiments of the present application;

[0058] Fig.17 A schematic diagram of a battery cell entry and exit system provided in some embodiments of the present application for implementing weighing behind a network port;

[0059] Fig.18 A schematic diagram of implementing exit code scanning for the entry and exit system of the battery cells provided in some embodiments of the present application. DETAILED DESCRIPTION

[0060] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the specific technical solution of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.

[0061] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this application are only for the purpose of describing this embodiment and are not intended to limit this application.

[0062] In the following description, references to “some embodiments,” “this embodiment,” “this embodiment,” and examples, etc., describe a subset of all possible embodiments, but it can be understood that “some embodiments” may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict.

[0063] If similar descriptions of "first / second" appear in the application documents, the following instructions are added. In the following description, the terms "first\second\third" involved are merely used to distinguish similar objects and do not represent a specific ordering of the objects. It can be understood that "first\second\third" can be interchanged in a specific order or sequence where permitted, so that the present embodiment described here can be implemented in an order other than that illustrated or described here.

[0064] In the embodiments of the present application, the term "and / or" is merely a description of the association relationship between associated objects, indicating that three relationships may exist. For example, object A and / or object B may represent three situations: object A exists alone, object A and object B exist at the same time, and object B exists alone.

[0065] At present, new energy batteries are more and more widely used in life and industry. New energy batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric vehicles, and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding. In the embodiment of the present application, the battery involved may be a battery cell. A battery cell refers to a basic unit that can realize the mutual conversion of chemical energy and electrical energy, which can be used to make a battery module or a battery pack, so as to supply power to an electrical device. A battery cell may be a secondary battery, which refers to a battery cell that can be used to activate 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 embodiment of the present application is not limited to this.

[0066] In the embodiment of the present application, the battery may also be a single physical module including one or more battery cells to provide higher voltage and capacity. When there are multiple battery cells, the multiple battery cells are connected in series, in parallel or in hybrid connection through a busbar component.

[0067] In the related art, liquid injection is a key process in the production process of lithium-ion batteries. The quality of the liquid injection results not only affects the battery performance, but also restricts the production efficiency of the battery. In the battery cell liquid injection process, the real-time production data of the battery cell, such as the weight of the battery cell (weight before liquid injection, weight after liquid injection), withstand voltage test results, liquid injection data, etc., will directly affect the stability and efficiency of the battery cell liquid injection. For example: if the pre-weighing data of the battery cell is not within the preset weight range, or the withstand voltage test results of the battery cell are abnormal, the battery cell liquid injection will be abnormal; at this time, the information needs to be fed back to the central control system corresponding to the battery cell liquid injection link in a timely manner to issue a corresponding alarm, so that the corresponding operator can check the cause, etc. In this way, in order to improve the stability and accuracy of the battery cell in the liquid injection link, it is crucial to trace the real-time production data of the battery cell in the liquid injection link.

[0068] Based on the above problems, the embodiment of the present application discloses a system and method for the entry and exit of battery cells. On the one hand, by means of the interaction between the liquid injection host computer and the MES, the battery cell code, pre-weighing data, and withstand voltage test results of the battery cells to be injected can be verified. In this way, the relevant data of the battery cells entering the liquid injection link can be verified and traced in real time, so as to prevent abnormal battery cells entering the liquid injection link; on the one hand, the liquid injection host computer successfully verifies the battery cell entry signal with the help of MES on the basis of the successful verification of multiple parameters of the battery cells to be injected, and correspondingly executes the battery cell injection and the post-weighing of the battery cells after injection, so as to further improve the stability and efficiency of the battery cells in the liquid injection link.

[0069] For the convenience of explanation, the following embodiments are described by taking a method for entering and exiting a battery cell according to an embodiment of the present application as an example. The method for entering and exiting a battery cell is applied to a liquid injection host computer. Please refer to Figure 1 As shown, Figure 1 Schematic diagram of the process of entering and exiting the battery cell provided in some embodiments of the present application Figure 1 , the following combination Figure 1 The following instructions are given:

[0070] Step S101: in response to a battery cell to be injected with liquid arriving at a front weighing station, a battery cell code of the battery cell is sent to a production execution system for verification to obtain a verification result.

[0071] In the embodiment of the present application, the liquid injection host computer may be an industrial computer (industrial control equipment); wherein the liquid injection host computer may include a processor and a memory. Here, the memory may be used to store relevant programs running on the processor, and at the same time, the processor may execute the entry and exit method of the battery cell when running the program.

[0072] In the embodiment of the present application, the injection host computer can exchange data with the controller; wherein the controller can be: a programmable logic controller (PLC) and the like.

[0073] In the embodiment of the present application, the manufacturing execution system (MES) is a computerized system for real-time monitoring, tracking and controlling the production process. The MES can integrate the production process, resources and data on the production line to improve production efficiency and quality and reduce production costs. Here, the injection host computer can interact with the MES, or the injection host computer can interact with the MES with the help of a controller, that is, the controller interacts with the MES.

[0074] It should be noted that in the battery cell production process, such as the liquid injection process, MES usually has the following functions: 1. Production scheduling: It can automatically calculate the production plan and scheduling according to the production order and resource status of the battery cell, so as to optimize the operation of the production line; 2. Material management: It can track the inventory status of raw materials, semi-finished products and finished products of the battery cell in real time to ensure the supply of materials required for production; 3. Quality management: By collecting quality data in the battery cell production process, real-time analysis and feedback are carried out, which helps to improve the quality of the battery cell and reduce quality costs; 4. Equipment management: It can monitor the operating status of production equipment (for example: industrial control equipment where the liquid injection host computer is located) in real time, detect faults in time and perform repairs and maintenance to ensure the normal operation of the equipment; 5. Personnel management: It can record employees' working hours, work content and work efficiency, which helps to improve employee production efficiency and reduce labor costs; 6. Data analysis: It can analyze battery cell production data in real time to provide strong support for production decisions.

[0075] In the embodiment of the present application, the battery cell to be injected with liquid may refer to a battery cell that needs to be injected with liquid once, or may refer to a battery cell that needs to be injected with liquid twice, and the embodiment of the present application does not impose any limitation on this.

[0076] It should be noted that the primary liquid injection of the battery cell is carried out during the battery cell manufacturing process, and its purpose is to ensure the stability of the battery cell capacity and provide protection for the life of the battery cell; while the secondary liquid injection is carried out during the use of the battery cell, and its purpose is to maintain the consistency of the battery cell capacity and extend the service life of the battery cell.

[0077] In the embodiments of the present application, the battery cell may refer to a battery cell of any shape, such as a square battery cell, a round battery cell, etc. And the battery cell usually refers to a battery cell (Battery Cell), which is one of the basic units that constitute the battery. The battery cell is the core component of the battery, responsible for storing and releasing electrical energy. Here, the battery cell can be: a lithium-ion battery cell (Li-ion Cell), a lithium polymer battery cell (Li-polymer Cell), a nickel-metal hydride battery cell (NiMH Cell), etc. The embodiments of the present application do not impose any restrictions on the type of battery cell, and the specific selection can be made according to the actual application scenario.

[0078] In the embodiments of the present application, the battery cell is the core component of the battery pack. A battery pack usually contains multiple battery cells, which are combined together to provide the required power capacity and voltage. Among them, the battery pack refers to a device composed of multiple battery cells, which is designed to store electrical energy and provide power supply. The components of the battery pack include at least: battery cells, battery management system (Battery Management System, BMS), housing, connecting harness, connector and interface, etc. These components work together to combine the battery cells into a fully functional battery pack for various application scenarios. For example, the battery pack can be applied to electric vehicles, energy storage systems, portable electronic devices, solar energy systems, wind energy systems, emergency backup power supplies, power tools or electric bicycles, etc. The embodiments of the present application do not make any restrictions on this, and can be selected according to the actual application scenario.

[0079] In the embodiment of the present application, the number of battery cells to be injected with liquid can be one or two or more, and the embodiment of the present application does not impose any limitation on this.

[0080] In the embodiment of the present application, when the battery cell to be injected arrives at the front weighing station, the relevant battery cell transportation mechanism may transport the tray carrying the battery cell to the front weighing station. Here, the control system (controller) corresponding to the battery cell in the injection process may control the transportation of the battery cell so that the injected battery cell arrives at the front weighing station; or the controller may control the relevant grabbing mechanism to grab the battery cell to be injected from the previous station or the previous process (the process relative to the injection process) to the front weighing station.

[0081] In the embodiment of the present application, the front weighing station can be equipped with a corresponding code scanning mechanism for reading the battery cell code of the battery cell. Here, the liquid injection host computer can control the code scanning mechanism to scan the battery cell under the action of the controller to obtain the battery cell code of the battery cell. At the same time, the front weighing station can also be equipped with a front weighing mechanism to realize the weighing of the battery cell, thereby obtaining the front weighing data of the battery cell.

[0082] In the embodiment of the present application, the battery cell code can be expressed in numbers or composed of numbers and letters; the battery cell code is the battery cell code, which is used to characterize the encoding of information such as the battery cell model, capacity, internal resistance, etc.

[0083] In the embodiment of the present application, the MES verifies the cell code of the cell, which can be to determine whether the cell is a cell that needs to enter the injection process for injection, thereby obtaining the verification result; or it can be to verify the format and length of the cell code of the cell, thereby obtaining the verification result. Here, the verification result can be expressed as verification success or verification failure, or as verification failure or verification pass, and the embodiment of the present application does not impose any restrictions on this.

[0084] It can be understood that through the above steps, the liquid injection host computer can send the battery cell code of the battery cell to the MES at the front weighing station, so that the subsequent MES can obtain the real-time production data of the battery cell entering the liquid injection process based on the battery cell code, thereby being able to analyze and process the real-time production data of the battery cell entering the liquid injection process, thereby improving the stability and efficiency of the battery cell in the liquid injection process.

[0085] Step S102: in response to the verification result being successful, obtaining the front weighing data of the battery cell.

[0086] In the embodiment of the present application, the MES may directly send the verification result to the liquid injection host computer, or the MES may forward the verification result to the liquid injection host computer through other devices, where the other devices may be controllers.

[0087] In the embodiment of the present application, when the liquid injection host computer obtains the verification result of the battery cell code of the battery cell and the verification is successful, the battery cell can be weighed at the front weighing station. Among them, the front weighing station can be deployed with a front weighing mechanism for weighing the battery cell. Here, the front weighing mechanism is usually a weighing instrument, which refers to an electronic device that can be converted into a digital display of weight and can store, count and print weight data. It is often used in automated batching and weighing in industrial and agricultural production to improve production efficiency.

[0088] It should be noted that the pre-weighing data is the weight data of the battery cell, which can be expressed in g. Here, if there are multiple battery cells to be injected, the pre-weighing mechanism can be used to weigh each battery cell to be injected in turn to obtain the pre-weighing data of each battery cell to be injected. The pre-weighing data of different battery cells to be injected can be the same or different.

[0089] It should be noted that the pre-weighing data of the battery cell to be filled with liquid may have a corresponding weight data range depending on the properties of the battery cell.

[0090] In an embodiment of the present application, if the verification result of the cell code of the battery cell is a verification failure, the MES will also send a signal corresponding to the verification failure to the liquid injection host computer, so that the liquid injection host computer can stop subsequent operations, such as stopping obtaining the previous weighing data of the battery cell, or stopping weighing the battery cell, etc., or sending an abnormal signal to the controller so that the controller can issue an abnormal alarm signal, etc.

[0091] It can be understood that through the above steps, when the injection host computer receives the verification result corresponding to the battery cell code of the battery cell and the verification is successful, it correspondingly obtains the previous weighing data of the battery cell to provide a parameter basis for the subsequent battery cell injection, thereby enabling the subsequent real-time traceability of the production data of the battery cell in the injection process, thereby improving the stability and accuracy of the battery cell injection.

[0092] Step S103: in response to the previous weighing data being within the first weight range, obtaining a withstand voltage test result of the battery cell transported to the test station.

[0093] In an embodiment of the present application, the injection host computer can compare the previous weighing data, that is, use the first weight range for comparison, so as to determine whether the previous weighing data is within the first weight range; wherein the first weight range can be associated with the property information of the battery cell to be injected; exemplarily, the first weight range is: 300g~350g.

[0094] In an embodiment of the present application, after receiving the previous weighing data that is within the first weight range, the liquid injection host computer can, under the action of the controller, transport the battery cell to a testing station; wherein the testing station can be adjacent to the previous weighing station or far away from it.

[0095] In the embodiment of the present application, a test mechanism can be deployed on the test station to perform a withstand voltage test on the battery cell on the test station, so as to obtain the withstand voltage test result of the battery cell; wherein, the withstand voltage test can be a high voltage insulation resistance test (battery cell hipot test), which is a method of detecting the insulation performance of the battery cell by applying a high voltage. Here, the battery cell hipot test is a commonly used safety test method, which can effectively detect the insulation performance of the battery cell and ensure that it will not have safety hazards such as leakage and breakdown during use.

[0096] In an embodiment of the present application, the injection host computer will stop working or send a corresponding abnormal signal or shutdown request signal to the controller in response to the previous weighing data not being within the first weight range, so that the controller controls the injection system where the injection host computer is located to stop working or send an abnormal alarm signal.

[0097] It can be understood that through the above steps, when the pre-weighing data of the battery cell is within the first weight range, the liquid injection host computer transports the battery cell to the test station and obtains the withstand voltage test results of the battery cell. In this way, not only can the production data of the battery cell entering the liquid injection process be traced in real time, but also the abnormal battery cell can be prevented by judging the relevant conditions (whether the pre-weighing data is within the first weight range), thereby improving the stability and accuracy of the battery cell in the liquid injection link.

[0098] Step S104: in response to the withstand voltage test result meeting the preset withstand voltage requirement, sending a cell entry signal to the production execution system.

[0099] In the embodiment of the present application, the liquid injection host computer confirms the pressure test result, that is, confirms whether it meets the preset pressure resistance requirement. If the preset pressure resistance requirement is met, the numerical value corresponding to the pressure test result may match the numerical value corresponding to the preset pressure resistance requirement, or the numerical value corresponding to the pressure test result may be within the numerical range corresponding to the preset pressure resistance requirement.

[0100] In the embodiment of the present application, the cell entry signal is sent to the MES by the liquid injection host computer after determining that the voltage withstand test result of the cell meets the preset voltage withstand requirement.

[0101] In an embodiment of the present application, the liquid injection host computer will stop working or send a corresponding abnormal signal or shutdown request signal to the controller in response to the pressure test result not meeting the preset pressure resistance requirement, or being significantly different from the preset pressure resistance requirement, so that the controller controls the liquid injection system where the liquid injection host computer is located to stop working or send an abnormal alarm signal.

[0102] It can be understood that through the above steps, when the liquid injection host computer determines that the voltage test result of the battery cell meets the preset voltage resistance requirement, it sends a battery cell entry signal to MES, so that MES can record the relevant data of the battery cell to be injected in real time, thereby enabling MES to prevent battery cells with abnormal injection, thereby improving the stability and accuracy of the battery cell in the injection process.

[0103] Step S105 , in response to the production execution system verifying that the cell entry signal is successful, continue to transport the cell to the liquid injection station and the post-weighing station to complete the liquid injection of the cell and obtain the post-weighing data of the cell.

[0104] In the embodiment of the present application, when the liquid injection host computer receives the signal from MES verifying that the battery cell has successfully entered the station, it transports the battery cell to the liquid injection station and the post-weighing station in sequence, that is, it completes the key operations of the battery cell in the liquid injection process in sequence, namely: liquid injection, and after the liquid injection is completed, enters the subsequent post-weighing station.

[0105] In the embodiment of the present application, the injection station can be equipped with an injection mechanism to inject liquid into the battery cell, and the post-weighing station can also be equipped with a post-weighing mechanism to weigh the battery cell after injection (battery cell after injection). Here, the relevant description of the post-weighing mechanism can refer to the description of the pre-weighing mechanism above, and the embodiment of the present application does not make any limitation on this.

[0106] In the embodiment of the present application, first, after the liquid injection host computer responds to the MES verification signal of the battery cell entering the station successfully, it can transport the battery cell to the liquid injection station under the action of the PLC, and control the liquid injection mechanism deployed at the liquid injection station based on the liquid injection signal sent by the controller to inject liquid into the battery cell to complete the liquid injection of the battery cell. Then, in response to the completion of the liquid injection of the battery cell, the liquid injection host computer can transport the battery cell to the post-weighing station under the action of the controller, and control the post-weighing mechanism deployed at the post-weighing station based on the post-weighing signal sent by the controller to post-weigh the cell to obtain post-weighing data.

[0107] It can be understood that through the above steps, the liquid injection host computer responds to the MES successfully verifying the signal of the battery cell, and sequentially implements liquid injection and post-weighing of the battery cell. In this way, the MES records the relevant data of the battery cell to be injected with liquid in real time, thereby improving the stability and accuracy of the battery cell in the liquid injection process based on the liquid injection data and post-weighing data.

[0108] Step S106: in response to the post-weighing data being within the second weight range, completing the entry and exit of the battery cell in the liquid injection process.

[0109] In an embodiment of the present application, the injection host computer can compare the post-weighing data, that is, use the second weight range for comparison, so as to determine whether the post-weighing data is within the second weight range; wherein the second weight range can be associated with the property information of the battery cell to be injected; exemplarily, the second weight range is: 500g~550g.

[0110] It should be noted that usually the front weighing data and the rear weighing data of the battery cell are different, and the rear weighing data is greater than the front weighing data; here, the rear weighing data can also be subtracted from the front weighing data to determine the actual liquid injection amount of the battery cell.

[0111] Correspondingly, the first weight range and the second weight range respectively correspond to different data endpoints.

[0112] It can be understood that through the above scheme, first, in response to the battery cell to be injected arriving at the front weighing station, the cell code of the battery cell is sent to the production execution system for verification to obtain the verification result, and in response to the verification result being a successful verification, the front weighing data of the battery cell is obtained; then, in response to the front weighing data being within the first weight range, the withstand voltage test result of the battery cell transported to the test station is obtained, and in response to the withstand voltage test result meeting the preset withstand voltage requirement, a battery cell entry signal is sent to the production execution system; finally, in response to the production execution system verifying that the battery cell entry signal is successful, the battery cell continues to be transported to the injection station and the post-weighing station to complete the injection of the battery cell and obtain the post-weighing data of the battery cell, and in response to the post-weighing data being within the second weight range, the entry and exit of the battery cell in the injection process is completed. In this way, on the one hand, with the help of the interaction between the liquid injection host computer and MES, the cell code, pre-weighing data and voltage test results of the battery cells to be injected can be verified; in this way, the relevant data of the battery cells entering the liquid injection link can be verified and traced in real time, so as to prevent abnormal battery cells entering the liquid injection link; on the other hand, the liquid injection host computer, based on the successful verification of multiple parameters of the battery cells to be injected, successfully verifies the battery cell entry signal with the help of MES, and correspondingly executes the battery cell injection and the post-weighing of the battery cell after injection, so as to further improve the stability and efficiency of the battery cell in the liquid injection link.

[0113] In some embodiments of the present application, the sending of the cell code to the MES in the above step S101 to obtain the verification result corresponding to the cell code can be implemented by the following steps S201 and S202. Figure 2 FIG. 1 is a flow chart of a method for entering and exiting a cell provided in some embodiments of the present application. Figure 2 , the following combination Figure 2 The following instructions are given:

[0114] Step S201: in response to the battery cell arriving at the front weighing station, based on the front scanning signal sent by the controller, controlling the scanning mechanism to scan the battery cell to obtain the battery cell code of the battery cell.

[0115] In the embodiment of the present application, the liquid injection host computer can receive a front code scanning signal sent by the controller in response to the battery cell arriving at the front weighing station. Here, the controller can detect that the battery cell arrives at the front weighing station and send a front code scanning signal to the liquid injection host computer, so that the liquid injection host computer controls the code scanning mechanism to scan the battery cell based on the front code scanning signal to obtain the battery cell code.

[0116] Here, the code scanning mechanism can also be deployed on the industrial computer where the injection host computer is located, and the code scanning mechanism can be a code scanning gun.

[0117] Step S202: sending the cell code to the production execution system, so that the production execution system verifies the cell code to obtain the verification result.

[0118] In the embodiment of the present application, the liquid injection host computer sends the acquired battery cell code to the MES so that the MES can verify the battery cell code, such as verifying the format of the battery cell code, thereby obtaining a verification result.

[0119] It can be understood that through the above steps, the acquired cell code can be verified through interaction between multiple devices (liquid injection host computer, code scanning mechanism and MES), which can improve the accuracy and efficiency of the acquired cell code.

[0120] In some embodiments of the present application, before executing the above step S202, the injection host computer may further execute the following step S2021:

[0121] Step S2021, verify the battery cell code for liquid injection qualification to obtain a verification result.

[0122] In the embodiment of the present application, the liquid injection host computer first performs liquid injection qualification verification on the acquired battery cell code, that is, determines whether the battery cell is a battery cell that needs to enter the liquid injection process. Correspondingly, the verification result can be expressed as verification passed or verification failed.

[0123] In the embodiment of the present application, the injection host computer can use the previously acquired battery cell code to be injected and match it with the acquired battery cell code to verify the injection qualification of the battery cell code, thereby obtaining a verification result. Here, the battery cell code to be injected can be sent to the injection host computer by the main controller of the injection system where the injection host computer is located.

[0124] Correspondingly, after the injection host computer executes step S2021, the MES verifies the battery cell code in the above step S202, which can be achieved by the following step S2022:

[0125] Step S2022: in response to the verification result being successful, sending the cell code to a production execution system, so that the production execution system verifies the cell code to obtain the verification result.

[0126] In the embodiment of the present application, the injection host computer verifies the injection qualification of the battery cell code as qualified, that is, if the verification is successful, the obtained battery cell code can be sent to the MES accordingly so that the MES can verify the battery cell code, such as: format and / or length verification.

[0127] It should be noted that, when the verification result corresponding to the verification of the liquid injection qualification of the battery cell code is a verification failure, the liquid injection host computer can perform verification again accordingly, or identify and obtain a new battery cell code again and verify again accordingly, so as to avoid the probability of verification errors or errors in the link of obtaining the battery cell code; or, when the verification result corresponding to the battery cell code is a verification failure, a verification failure signal or an alarm signal is issued accordingly. Here, the verification failure signal can also be sent to the controller so that the controller can perform relevant operations accordingly, such as: shutting down (stopping the operation of the liquid injection host computer, and / or stopping the operation of the liquid injection host computer, and / or stopping the operation of the scanning mechanism), so that relevant staff can check the cause of the abnormality, etc.

[0128] It can be understood that through the above steps, the cell code is verified for liquid injection qualification with the help of the liquid injection host computer, and when the liquid injection qualification verification is passed, the cell code is verified with the help of MES. In this way, on the one hand, the accuracy of the obtained cell code can be improved so as to accurately determine the cell entering the liquid injection process; on the other hand, it provides a basis for the subsequent liquid injection host computer and MES to trace the cell data entering the liquid injection process in real time based on the cell code.

[0129] Here, the injection host computer responds to the injection qualification verification of the obtained battery cell code, that is, after the verification is successful, the battery cell data encoding matching the battery cell code can also be sent to the local preset battery cell database, so as to realize the preset battery cell database in the injection host computer to be updated in real time based on the battery cell of the injection link, that is, the battery cell entry and exit method provided in the embodiment of the present application, and the following steps A1 and A2 can also be performed:

[0130] Step A1: in response to the verification result being successful, sending the cell code to the controller to receive the cell data code sent by the controller that matches the cell code.

[0131] In the embodiment of the present application, the injection host computer can send the battery cell code to the controller and MES synchronously in response to the battery cell injection qualification verification being successful. Here, after the controller receives the battery cell code, the battery cell data encoding matching the battery cell code can be sent to the injection host computer.

[0132] Here, the cell code corresponds to the cell data code one by one. The cell data code may be a code inside the injection host computer for managing the cells entering the injection process, and its data format and length may be determined according to actual needs.

[0133] Step A2: Encode the battery cell data and write it into a preset battery cell database to update the preset battery cell database.

[0134] In the embodiment of the present application, after receiving the battery cell data code, the liquid injection host computer can write it into a locally pre-stored preset battery cell database to update the preset battery cell database.

[0135] It should be noted that the number of battery cells included in the preset battery cell database may be determined according to actual production. Here, the data in the preset battery cell database may be displayed in a tabular form; correspondingly, the preset battery cell database may include the data of the battery cells acquired by the injection host computer within a preset time, wherein the preset time period may be one month, three months, etc., and the embodiments of the present application do not impose any limitations on this.

[0136] In the embodiment of the present application, each cell in the preset cell database corresponds to its actual injection data. Here, each cell in the preset cell database corresponds to a cell data code (read and stored at the code reading station), cell injection data (obtained at the injection station and the static station of the cell entering the injection process), weighing data (weight data corresponding to the first and last stations of the cell to be injected into the injection process), etc.

[0137] It can be understood that through the above steps, based on the battery cell code, the relevant parameters in the preset battery cell database are updated in real time to realize the storage of real-time data of the battery cell in the liquid injection process, thereby providing parameter support for subsequent viewing of the actual production data of the battery cell or performing related operations on the battery cell.

[0138] In some embodiments of the present application, obtaining the front weighing data of the battery cell in the above step S102 can be achieved by the following step S301. Figure 3 FIG. 1 is a flow chart of a method for entering and exiting a cell provided in some embodiments of the present application. Figure 3 , the following combination Figure 3 The following instructions are given:

[0139] Step S301, in response to the verification result being successful, based on the front weighing signal sent by the controller, controlling the front weighing mechanism deployed on the front weighing station to perform front weighing on the battery cell to obtain the front weighing data.

[0140] In an embodiment of the present application, after the liquid injection host computer receives the verification result of the battery cell code sent by MES and the verification is successful, it can send a signal to the controller to receive the pre-weighing signal sent by the controller, or, after MES determines that the verification result of the battery cell code is successful, it directly sends a signal to the controller to enable the controller to send the pre-weighing signal to the liquid injection host computer.

[0141] Correspondingly, obtaining the withstand voltage test result of the battery cell in the above step S103 can be achieved by following the steps S302 and S303. Figure 3 As shown:

[0142] Step S302: in response to the previous weighing data being within the first weight range, transporting the battery cell to the testing station under the control of the controller.

[0143] In an embodiment of the present application, the liquid injection host computer obtains the battery cell transported to the test station in response to the previous weighing data being within the first weight range. The battery cell can be transported to the test station under the action of the controller.

[0144] Step S303: Based on the test signal sent by the controller, control the test mechanism deployed on the test station to perform a withstand voltage test on the battery cell to obtain the withstand voltage test result.

[0145] In an embodiment of the present application, when the liquid injection host computer determines that the battery cell is in the test station, it can receive a test signal sent by the controller to control the test mechanism deployed on the test station to perform a withstand voltage test on the battery cell, thereby obtaining the withstand voltage test result.

[0146] Here, the controller may also send a test signal to the liquid injection host computer after detecting that the battery cell is in the test station.

[0147] In the embodiment of the present application, the testing mechanism can also be deployed on the industrial control equipment where the injection host computer is located. Here, the testing mechanism can be a Hipot testing mechanism of the battery cell.

[0148] It can be understood that through the above steps, the liquid injection host computer, under the action of the controller, successively implements the pre-weighing and voltage resistance test of the battery cell, and the voltage resistance test is performed on the battery cell only when the pre-weighing data obtained meets a certain weight range. In this way, on the one hand, the data of each link of the battery cell entering the liquid injection link can be traced in real time, and on the other hand, the stability and accuracy of the battery cell in the liquid injection link can be improved based on the verification of the pre-weighing data, that is, whether it is within the first weight range.

[0149] In the embodiment of the present application, if the battery cell is the first battery cell to enter the front weighing station in the current shift, the battery cell entry and exit method provided in the embodiment of the present application may further perform the following step B:

[0150] Step B: using standard weights to perform a first-piece inspection on the front weighing mechanism to obtain the front weighing mechanism whose first-piece inspection data meets a preset error range.

[0151] In the embodiment of the present application, standard weights are required to perform the first inspection of the front weighing mechanism to determine whether the measurement parameters of the front weighing mechanism meet the preset error range. Here, the battery cell to be injected is the first battery cell entering the station in the current shift, that is, the first battery cell injected by the injection host computer within a period of time.

[0152] It can be understood that through the above steps, with the help of standard weights, the front weighing mechanism is first inspected before weighing the first battery cell entering the front weighing station in the current shift, so as to ensure that the front weighing data obtained by weighing other battery cells that enter the liquid filling process or enter the station later in the current shift (including the first battery cell entering the station in the current shift) are more accurate.

[0153] It should be noted that the above-mentioned encoding of the cell data matching the cell code is written into the preset cell database. Here, after the liquid injection host computer obtains the previous weighing data of the cell, it can also write the previous weighing data into the preset cell database to achieve real-time updating of the preset cell database. Among them, the liquid injection host computer can further write the obtained previous weighing data into the preset cell database based on the cell data encoding matching the cell code when the previous weighing data is in the first weight range to update the preset cell database.

[0154] In some embodiments of the present application, the completion of the liquid injection of the battery cell in the above step S105 and the acquisition of the post-weighing data of the battery cell can be achieved by the following steps S401 and S402. Figure 4 FIG. 1 is a flow chart of a method for entering and exiting a cell provided in some embodiments of the present application. Figure 4 , the following combination Figure 4 The following instructions are given:

[0155] Step S401, in response to the production execution system verifying that the battery cell entry signal is successful and the battery cell is transported to the filling station, based on the filling signal sent by the controller, the filling mechanism deployed at the filling station is controlled to fill the battery cell to complete the filling of the battery cell.

[0156] In the embodiment of the present application, the injection host computer responds to the MES verifying that the cell entry signal is successful, and the cell is transported to the injection station. Here, the MES can check the cell entry signal, such as: checking whether the cell can enter the station. At the same time, the MES can send a corresponding transportation signal to the controller when the cell entry signal is successfully verified, so that the controller controls the relevant transportation mechanism to transport the cell to the injection station.

[0157] It should be noted that the battery cell is transported to the liquid injection station by the controller controlling the relevant grabbing mechanism to grab the battery cell to the corresponding tray for carrying the battery cell and transport the card slot to the liquid injection station. At the same time, before the battery cell enters the liquid injection station, multiple stations can be operated in sequence. Here, multiple stations can refer to multiple preparation stations before liquid injection. Such as: liquid preparation station, capping station, battery cell and tray binding station, etc.

[0158] In an embodiment of the present application, after the battery cell is transported to the liquid injection station, the controller sends an injection signal to the liquid injection host computer, so that the liquid injection host computer controls the liquid injection mechanism (such as an injection pump) deployed at the liquid injection station to inject liquid into the battery cell to complete the liquid injection of the battery cell.

[0159] Step S402, in response to the completion of the cell injection and the transportation of the cell to the post-weighing station, based on the post-weighing signal sent by the controller, control the post-weighing mechanism deployed at the post-weighing station to post-weigh the cell to obtain the post-weighing data.

[0160] In the embodiment of the present application, the completion of liquid injection can be that the controller detects that the liquid injection mechanism has completed the liquid injection of the battery cell, such as the end of the reserve liquid in the liquid injection mechanism, and can send a liquid injection completion signal to the liquid injection host computer. At the same time, the controller controls the battery cell that has completed liquid injection to be transported to the post-weighing station.

[0161] It should be noted that after the battery cell is injected, it can be transported from the injection station to the post-weighing station and then to the static station, the tray disassembly station, etc., so as to complete the injection process of the battery cell.

[0162] It can be understood that through the above steps, after the cell entry signal is successfully verified, the injection host computer transports the cells for injection in sequence, and weighs them after the injection is completed to obtain the post-weighing data. In this way, the stability and accuracy of the cell in the injection process can be improved by obtaining each parameter in the entry and exit links.

[0163] Correspondingly, if the battery cell is the first battery cell to enter the weighing station in the current shift, the battery cell entry and exit method provided in the embodiment of the present application can also perform the following steps C:

[0164] Step C: using standard weights to perform a first-piece spot inspection on the rear weighing mechanism to obtain the rear weighing mechanism whose first-piece spot inspection data meets a preset error range.

[0165] In the embodiment of the present application, a standard weight is required to perform a first-piece inspection on the rear weighing mechanism to determine whether the measurement parameters of the rear weighing mechanism meet the preset error range. Here, the battery cell to be injected is the first battery cell entering the station in the current shift, that is, the first battery cell injected by the injection host computer within a period of time.

[0166] It can be understood that through the above steps, with the help of standard weights, the first battery cell entering the station in the current shift is first inspected on the post-weighing mechanism before weighing, so as to ensure the accuracy of data measurement during the post-weighing of other battery cells that enter the liquid filling process or enter the station later in the current shift (including the first battery cell entering the station in the current shift).

[0167] In some embodiments of the present application, the injection host computer can store the above-obtained weighing data, that is, the pre-weighing data and post-weighing data of the battery cell, so as to view and analyze the data of the battery cell in the subsequent injection link, that is, the inbound and outbound method provided in the above embodiment can also perform the following step D:

[0168] Step D: Based on the cell data encoding matched with the cell code, the pre-weighing data, the post-weighing data, the weight difference and the withstand voltage test result are written into a preset cell database to update the preset cell database.

[0169] The weight difference is the difference between the post-weighing data and the pre-weighing data.

[0170] In the embodiment of the present application, the cell data encoding may be obtained from the controller as mentioned above. Correspondingly, the pre-weighing data, withstand voltage test results, post-weighing data and weight difference of the cell involved in the liquid injection process may be written into the preset cell database to update the preset cell database.

[0171] In the embodiment of the present application, the cell data encoding that matches the cell code can be used to synchronously write the acquired data that meets certain conditions, i.e., the front weighing data, the rear weighing data, the weight difference, and the withstand voltage test result, into the preset cell database; or the liquid injection host computer responds to the front weighing data being in the first weight range, and writes the front weighing data into the preset cell database based on the cell data encoding of the cell code. Similarly, the liquid injection host computer responds to the withstand voltage test result meeting the preset withstand voltage requirement, and writes the withstand voltage test result into the preset cell database based on the cell data encoding of the cell code; and so on, the same applies to the rear weighing data and the weight difference, which will not be described here.

[0172] It should be noted that the description of the preset battery cell database can be referred to the above description and will not be repeated here.

[0173] It can be understood that through the above steps, the liquid injection host computer writes the acquired battery cell production data into the preset battery cell database based on the battery cell data encoding that matches the battery cell code, so as to realize the storage of real-time data of the battery cell in the liquid injection process, thereby providing parameter support for subsequent viewing of the actual production data of the battery cell or performing related operations on the battery cell.

[0174] In some embodiments of the present application, the injection host computer can perform a corresponding post-scanning and acquisition of relevant data on the battery cells at the post-weighing station, that is, the battery cell entry and exit method provided in the embodiment of the present application can also perform the following steps E1 and E2:

[0175] Step E1: Based on the post-scanning signal sent by the controller, the scanning mechanism is controlled to scan the battery cell at the post-weighing station to obtain the battery cell code.

[0176] In the embodiment of the present application, when the battery cell is in the post-weighing station, the controller will also send a post-scanning signal to the liquid filling host computer, so that the liquid filling host computer controls the scanning mechanism to scan the battery cell and obtain the battery cell code.

[0177] Here, the code scanning mechanism may be the same as or different from the code scanning mechanism for scanning the code at the front weighing station mentioned above. Correspondingly, the battery cell code obtained may be the same as or different from the battery cell code mentioned above.

[0178] It should be noted that the liquid filling host computer can also compare the battery cell code obtained at the rear weighing station with the battery cell code obtained at the front weighing station to re-verify the battery cells entering and leaving the station, that is, whether the battery cells at the front weighing station and the rear weighing station are the same battery cells.

[0179] Step E2: sending the battery cell code to the controller to obtain the injection data corresponding to the battery cell at the injection station sent by the controller, and storing the injection data in a preset battery cell database.

[0180] In an embodiment of the present application, the injection data, which may be the injection rate, injection time, vacuuming time, standing time and voltage parameters of the battery cell, are correspondingly written into the area associated with the battery cell code (the battery cell data encoding matching the battery cell code) in the preset battery cell database to update the preset battery cell database.

[0181] It can be understood that through the above steps, based on the battery cell code, the relevant parameters in the preset battery cell database are updated in real time to store the injection data of the battery cell in the injection process, thereby providing parameter support for subsequent viewing of the battery cell injection data or performing related operations on the battery cell.

[0182] In some embodiments of the present application, the injection host computer includes an entry and exit display interface, and the entry and exit display interface includes: an entry and exit data frame. Correspondingly, the above steps S101 to S106 involved in the embodiments of the present application can be implemented by following the steps S501 to S505. Please refer to Figure 5 As shown, Figure 5 Schematic diagram of the process of entering and exiting the battery cell provided in some embodiments of the present application Figure 5 The following combination Figure 5 The following instructions are given:

[0183] Step S501, in response to the battery cell arriving at the front weighing station, displaying the battery cell code of the battery cell in the inbound and outbound data frame, and sending the battery cell code to the production execution system for verification to obtain the verification result.

[0184] Step S502, in response to the verification result being successful, displaying the previous weighing data of the battery cell in the entry and exit data frame, and in response to the previous weighing data being within the first weight range, displaying the withstand voltage test result of the battery cell transported to the test station in the entry and exit data frame.

[0185] Step S503: In response to the withstand voltage test result satisfying the preset withstand voltage requirement, the battery cell entry signal is displayed in the entry and exit data frame, and the battery cell entry signal is sent to the production execution system.

[0186] Step S504, in response to the production execution system verifying that the battery cell entry signal is successful, continue to transport the battery cell to the liquid filling station and the post-weighing station, and display the liquid filling data of the battery cell and the post-weighing data of the battery cell in the entry and exit data box in sequence.

[0187] Step S505 , in response to the post-weighing data being within the second weight range, completing the entry and exit of the battery cell in the liquid injection process.

[0188] In some embodiments of the present application, the presentation form of the entry and exit data frame included in the entry and exit display interface can be determined according to actual needs; illustratively, the entry and exit data frame is displayed in a table form or a curve form. Here, the entry and exit data frame is displayed in any area of ​​the entry and exit display interface.

[0189] It should be noted that the entry and exit display interface includes but is not limited to the above-mentioned entry and exit data frame; it can also display the schematic architecture diagram of the injection host computer in different dimensions (three-dimensional or two-dimensional).

[0190] In the embodiment of the present application, for the specific implementation instructions of the above steps S501 to S505, reference may be made to the detailed description of the above-mentioned method for entering and exiting the battery cell.

[0191] Here, see Figure 6 , which is a schematic diagram of an entry and exit display interface shown in some embodiments of the present application, wherein the entry and exit display interface 601 includes: an entry and exit data frame 6011; here, Figure 6 This is just an example. The entry and exit display interface in the actual production process of battery cells can be determined according to actual needs.

[0192] It can be understood that, through the above steps, on the basis of the liquid injection host computer presenting an entry and exit display interface including an entry and exit data frame, first, in response to the battery cell to be injected arriving at the front weighing station, the battery cell code of the battery cell is displayed in the entry and exit data frame, and the battery cell code is sent to the production execution system for verification to obtain the verification result; and in response to the verification result being a successful verification, the front weighing data of the battery cell is displayed in the entry and exit data frame; then, in response to the front weighing data being in the first weight range, the withstand voltage test result of the battery cell transported to the test station is displayed in the entry and exit data frame; and in response to the withstand voltage test result meeting the preset withstand voltage requirement, the battery cell entry signal is displayed in the entry and exit data frame and sent to the production execution system; finally, in response to the production execution system verifying that the battery cell entry signal is successful, the battery cell continues to be transported to the liquid injection station and the rear weighing station, and the liquid injection data of the battery cell and the rear weighing data of the battery cell are displayed in the entry and exit data frame in sequence; and in response to the rear weighing data being in the second weight range, the entry and exit of the battery cell in the liquid injection process is completed. In this way, on the one hand, with the help of the interaction between the liquid injection host computer and MES, the cell code, pre-weighing data and voltage test results of the battery cells to be injected can be verified and displayed; in this way, not only can the relevant data of the battery cells entering the liquid injection link be verified and traced in real time, so as to prevent abnormal battery cells entering the liquid injection link, but also it can be convenient for relevant operators to view and analyze the real-time data of the battery cells; on the one hand, the liquid injection host computer successfully verifies the battery cell entry signal with the help of MES on the basis of successfully verifying and displaying multiple parameters of the battery cells to be injected, and correspondingly executes the battery cell injection and the post-weighing of the battery cell after injection, so as to further improve the stability and efficiency of the battery cell in the liquid injection link.

[0193] In some embodiments of the present application, on the basis of the liquid injection host computer presenting the entry and exit display interface provided in the above embodiments, a corresponding display interface of the liquid injection host computer as shown below can be presented accordingly to enrich the display function of the liquid injection host computer, thereby providing a more comprehensive human-computer interaction control interface.

[0194] Here, see Figure 7 FIG. 1 is a schematic diagram of a display interface corresponding to a liquid injection host computer provided in an embodiment of the present application. Figure 1; Wherein, the display interface 700 may include: a function interface selection area 701; wherein, in the function interface selection area 701, when a trigger is received for the control corresponding to the main interface, the display interface 700 may display: a three-dimensional schematic architecture display area 702 of the injection host computer, a log menu bar display area 703 corresponding to the injection host computer, and a status display area 704. Here, the status display area 704 may display, for example: the connection status between the controller PLC communicating with the injection host computer, the scanning status of the battery cell to be injected at the front end of the injection process, the Hipot test status, etc. In addition, the display interface 700 may also present a user login area, i.e. 705, for operating the injection host computer.

[0195] In addition, the function interface selection area 701 may also involve: data display interfaces related to multiple operations corresponding to the battery cell in the injection process, such as: generating data output, Hipot process diagram, real-time display of production data, alarm query, data query, parameter configuration, electronic scale inspection involved in the weighing process, test tools, user management and authority management. Correspondingly, the above-mentioned entry and exit display interface will also be involved in the function interface selection area 701.

[0196] Correspondingly, if Figure 8 FIG. 1 is a schematic diagram of a display interface corresponding to a liquid injection host computer provided in an embodiment of the present application. Figure 2 , wherein, in the function interface selection area 701 included in the display interface 700, when a trigger corresponding to the electronic scale inspection is received, the display interface 700 can display: the parameter display area 801 corresponding to the inspection and zeroing of the weighing instrument (here, the electronic scale is represented by the weighing instrument) and the first piece production execution system verification parameter display area 802. Here, 801 is to record the inspection data in a table form and in multiple times. In addition, 801 can also include: the weighing instrument related function touch control 8011, which is used to realize manual operation to make relevant adjustments to the weighing instrument.

[0197] Also, see Fig. 9 FIG. 1 is a schematic diagram of a display interface corresponding to a liquid injection host computer provided in an embodiment of the present application. Figure 3 , wherein, in the function interface selection area 701 included in the display interface 700, when a trigger for a control corresponding to the Hipot process diagram is received, the display interface 700 may display: Hipot process data display area 901. Here, the display form of the data in the Hipot process data display area 901 may be determined according to actual needs.

[0198] Here, see Fig.10 FIG. 1 is a schematic diagram of a display interface corresponding to a liquid injection host computer provided in an embodiment of the present application. Figure 4 ,in, Fig.10 It is a display interface presented when a control corresponding to the MES log query in the data query drop-down menu is triggered in the function interface selection area 701 included in the display interface 700 .

[0199] In addition, see Figures 11 to 13 The following are schematic diagrams of a display interface corresponding to a liquid injection host computer provided in an embodiment of the present application. Figure 5 , indicate Figure 6 And hint Figure 7 ;in, Fig.11 The display interface presented when a trigger corresponding to a control of a weighing instrument in a drop-down menu of a testing tool is received in the function interface selection area 701 included in the display interface 700; Fig.12 The display interface presented when a trigger corresponding to a control of a weighing instrument in a drop-down menu of a testing tool is received in the function interface selection area 701 included in the display interface 700; Fig.13 It is the display interface presented when a trigger of a control corresponding to Hipot in the drop-down menu of the test tool is received in the function interface selection area 701 included in the display interface 700 .

[0200] here, Fig.11 The display interface 700 includes: a barcode scanner connection parameter display area 1101 and a debugging log information display area 1102; Fig.12 The display interface 700 includes: a weighing instrument connection parameter display area 1201 and a debugging log information display area 1202; Fig.13 The display interface 700 includes: a Hipot connection parameter display area 1301 and a debugging log information display area 1302.

[0201] It should be noted that the parameters displayed in the above-mentioned barcode scanner connection parameter display area 1101, weighing instrument connection parameter display area 1201 and Hipot connection parameter display area 1301 can be determined according to actual needs, and the debug log information display area 1102, debug log information display area 1202 and debug log information display area 1302 can include but are not limited to: log recording time, log type, log content and log details, etc.

[0202] Correspondingly, some embodiments of the present application also provide a battery entry and exit system, please refer to Fig.14 As shown, Fig.14A schematic diagram of the composition structure of the inbound and outbound system of the battery cell provided in some embodiments of the present application. The inbound and outbound system 1400 includes: a liquid injection host computer 1401, a controller 1402 and a production execution system 1403, wherein:

[0203] In response to the battery cell to be injected arriving at the front weighing station, the injection host computer 1401 sends the battery cell code of the battery cell to the production execution system 1403 for verification to obtain the verification result;

[0204] In response to the verification result indicating that the verification is successful, the injection host computer 1401 obtains the front weighing data of the battery cell;

[0205] The liquid injection host computer 1401 obtains the withstand voltage test result of the battery cell transported to the test station in response to the previous weighing data being in the first weight range;

[0206] In response to the withstand voltage test result meeting the preset withstand voltage requirement, the injection host computer 1401 sends a cell entry signal to the production execution system 1403;

[0207] The liquid injection host computer 1401 responds to the production execution system 1403 to verify that the battery cell entry signal is successful, and under the action of the controller 1402, continues to transport the battery cell to the liquid injection station and the post-weighing station to complete the liquid injection of the battery cell and obtain the post-weighing data of the battery cell;

[0208] In response to the post-weighing data being in the second weight range, the injection host computer 1401 completes the entry and exit of the battery cell in the injection process.

[0209] In some embodiments of the present application, the battery cell entry and exit system 1400 can be applied to the battery cell entry and exit method provided in any of the above embodiments. For detailed descriptions of the liquid injection host computer 1401, the controller 1402, and the production execution system 1403, as well as specific beneficial effects, please refer to the detailed descriptions of the above-mentioned battery cell entry and exit methods.

[0210] The battery entry and exit system provided by the present application is explained in a specific embodiment below.

[0211] After the battery cell enters the relevant workstation corresponding to the liquid injection process, the battery cell entry and exit system will correspondingly execute the following four processes: 1. Scan the code to weigh and verify entry; 2. Hipot entry; 3. Weighing behind the network port; 4. Scan the code to exit.

[0212] Among them, see Fig.15As shown in the figure, in the in-and-out system of the battery cell, the controller 151, the injection host computer 152, the barcode scanner 153, the production execution system 154 and the weighing instrument 155 work together to realize the barcode scanning and weighing in-station verification, which specifically includes:

[0213] 1501, start;

[0214] 1502 and 1503, after the battery cell to be injected enters the first station corresponding to the injection process, the injection host computer 152 reads the station scanning code trigger signal from the controller 151 accordingly;

[0215] 1504. The injection host computer 152 sends a trigger code scanning instruction to the code scanning gun 153 based on the read code scanning trigger signal;

[0216] 1505. The barcode scanner 153 scans the battery cell based on the received trigger barcode scanning instruction. Here, the corresponding image can be obtained by scanning the barcode and analyzed to obtain the battery cell code;

[0217] 1506. The barcode scanner 153 returns the scanning result, that is, sends the obtained battery cell code to the liquid injection host computer 152;

[0218] 1507. The liquid injection host computer 152 determines the received cell code, that is, determines whether the cell code is correct. Here, if the cell code is unqualified, the liquid injection host computer 152 will correspondingly send a signal to the controller 151 so that the controller 151 writes the scan result, that is, 1508; if the cell code is qualified, the liquid injection host computer 152 will read the cell code that matches it based on the cell code. Here, it can be obtained from the controller 151, that is, execute 1509;

[0219] 1510. The liquid injection host computer 152 writes the obtained battery cell code into a locally pre-stored database, that is, inserts the battery cell code into the database for data recording;

[0220] 1511. After executing the above operations, the injection host computer 152 starts to perform station inspection on the battery cell, that is, the injection host computer sends the corresponding battery cell code to the production execution system 154;

[0221] 1512. The production execution system 154 enters the station to check whether the battery cell is qualified. Here, if it is not, a signal can be directly sent to the controller 151 to make the controller 151 write the entry code scanning result 1, that is, 1513; if it is, a signal is also sent to the controller 151 to make the controller 151 write the entry code scanning result 2, that is, 1514, and correspondingly the controller 151 triggers the injection host computer 152 to perform the subsequent pre-weighing operation;

[0222] 1515, the injection host computer 152 triggers a weighing instruction to the weighing instrument 155;

[0223] 1516. The weighing instrument 155 weighs the battery cell based on the signal sent by the liquid injection host computer 152, and sends the corresponding weighing data to the liquid injection host computer 152 for weighing verification, that is, 1517. Here, the liquid injection host computer 152 verifies the weighing data. If it meets certain requirements, such as being within the preset weight range, the weight data can be saved, that is, 1518 is executed, and 1519 is ended; if it does not meet the requirements, such as not being within the preset weight range, the liquid injection station of the battery cell can be directly ended.

[0224] Correspondingly, see Fig.16 As shown, in the inbound and outbound system of the battery cell, the controller 151, the injection host computer 152, the withstand voltage tester (Hipot tester) 156 and the production execution system 154 work together to realize the Hipot inbound, which specifically includes:

[0225] 1601, start;

[0226] 1602 and 1603, after the battery cell to be injected enters the Hipot test station, the injection host computer 152 reads the withstand voltage trigger signal from the controller 151 accordingly;

[0227] 1604. The liquid injection host computer 152 sends a withstand voltage test instruction to the withstand voltage tester 156 based on the read withstand voltage trigger signal;

[0228] 1605 and 1606, the withstand voltage tester 156 reads and returns the withstand voltage data to the injection host computer 152 based on the received withstand voltage test instruction;

[0229] 1607. The injection host computer 152 judges the received pressure data based on the preset pressure requirements. Here, if the pressure data does not meet the preset pressure requirements, the judgment result can be sent to the controller 151 so that the controller 151 writes the pressure data judgment result for recording, that is, 1608; if the pressure data meets the preset pressure requirements, the judgment result can also be sent to the controller 151 so that the controller 151 writes the pressure data judgment result for recording, and at the same time triggers the entry signal to the production execution system 154, that is, execute 1609;

[0230] 1610. The production execution system 154 determines the received entry signal to determine whether the signal is correct. If it is incorrect, a signal needs to be sent to the controller 151 so that the controller 151 writes the entry verification result 1, that is, 1611; if it is correct, a signal needs to be sent to the controller 151 so that the controller 151 writes the entry verification result 2, that is, 1612, and at the same time triggers the injection host computer 152 to save the withstand voltage data, entry signal and other data obtained in this process, that is, execute 1613;

[0231] 1614. After the local data is saved and the local database is updated, the process ends.

[0232] Here, in the Hipot station entry, each process executed by the injection host computer 152 will correspondingly send a signal to the controller 151, so that the controller 151 can obtain the real-time working data of the injection host computer 152 in real time.

[0233] Correspondingly, see Fig.17 As shown, in the inlet and outlet system of the battery cell, the controller 151, the injection host computer 152 and the weighing instrument 155 work together to realize the weighing after the network port, which specifically includes:

[0234] 1701, start;

[0235] 1702 and 1703, after the battery cell to be injected enters the post-weighing station (i.e., the battery cell to be injected completes the main link in the injection process: the relevant operation station after injection), the injection host computer 152 reads the post-weighing trigger signal from the controller 151 accordingly;

[0236] 1704. The injection host computer 152 sends a trigger weighing instruction to the weighing instrument 155 based on the post-weighing trigger signal;

[0237] 1705 and 1706, the weighing instrument 155 reads the weighing data (post-weighing data) of the battery cell based on the trigger weighing instruction, and returns the result to the injection host computer 152;

[0238] 1707. The injection host computer 152 determines the acquired weighing data to determine whether it is within the preset weight range, that is, whether the post-weighing data is qualified. Here, if it is unqualified, a signal needs to be sent to the controller 151 to make the controller 151 write the post-weighing result 1, so as to realize the recording of the post-weighing data; if it is qualified, a signal also needs to be sent to the controller 151 to make the controller 151 write the post-weighing result 2, and correspondingly write the post-weighing data into the local database for storage, so as to realize the update of the local database, so as to realize the real-time tracing of the weight data of the battery cell, that is, execute 1710;

[0239] 1711. End.

[0240] Correspondingly, see Fig.18 As shown in the figure, in the inbound and outbound system of the battery cell, the controller 151, the injection host computer 152 and the barcode scanner 153 work together to realize the outbound barcode scanning, which specifically includes:

[0241] 1801, start;

[0242] 1802 and 1803, after the battery cell to be filled enters the rear weighing station, the filling host computer 152 reads the outbound scanning code trigger signal from the controller 151 accordingly;

[0243] 1804. The injection host computer 151 sends a code scanning instruction to the code scanning gun 153 based on the outbound code scanning trigger signal;

[0244] 1805 and 1806, the barcode scanner 153 reads the battery cell code (scanning data) of the battery cell based on the barcode scanning instruction and returns the result to the injection host computer 152;

[0245] 1807. The injection host computer 152 determines whether the acquired scanned data is reasonable. If it is unreasonable, a signal needs to be sent to the controller 151 to make the controller 151 write scanned result 1, so as to record the scanned data; if it is qualified, a signal needs to be sent to the controller 151 to make the controller 151 write scanned result 2, and correspondingly write the scanned data into the local database for storage, so as to update the local database, that is, execute 1810;

[0246] 1811. End.

[0247] It should be noted that, in the above-mentioned multiple processes, the injection host computer 151 will send a signal to the controller 151 corresponding to each process executed, so that the controller 151 can obtain the real-time working data of the injection host computer in real time.

[0248] Here, for further detailed implementation process, reference may be made to the detailed description of the method for entering and exiting the station of the battery cell in the above embodiment, which will not be repeated here.

[0249] It should be understood that "one embodiment" or "an embodiment" mentioned throughout the specification means that specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in various embodiments of the present application, the size of the serial number of each step / process mentioned above does not mean the order of execution, and the execution order of each step / process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application. The serial numbers of the embodiments of the present application mentioned above are for description only and do not represent the advantages and disadvantages of the embodiments.

[0250] The present application uses descriptions such as "upper", "lower", "top", "bottom", "front", "back", "inside" and "outside" to indicate directions or positional relationships. This is only for the convenience of describing the present application, and does not indicate or imply that the device referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, it should not be understood as limiting the scope of protection of the present application.

[0251] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0252] It should be noted that, in this application, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0253] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0254] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; they may be located in one place or distributed on multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. In addition, the functional units in the embodiments of the present application may be all integrated into one processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0255] The above are only implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed in the present application should be covered within the protection scope of the present application.

Claims

1. A method for entering and exiting a battery cell, characterized in that: Applied to the injection host computer, the entry and exit methods include: In response to the battery cell to be injected arriving at the front weighing station, the battery cell code of the battery cell is sent to the production execution system for verification to obtain the verification result; In response to the verification result being a successful verification, obtaining the front weighing data of the battery cell; In response to the previous weighing data being within a first weight range, obtaining a withstand voltage test result of the battery cell transported to a test station; In response to the withstand voltage test result meeting the preset withstand voltage requirement, sending a cell entry signal to the production execution system; In response to the production execution system verifying that the cell entry signal is successful, continue to transport the cell to the liquid injection station and the post-weighing station to complete the liquid injection of the cell and obtain the post-weighing data of the cell; In response to the post-weighing data being within the second weight range, the battery cell is completed in and out of the injection process.

2. The method for entering and exiting a station according to claim 1, characterized in that: In response to the battery cell to be injected arriving at the front weighing station, the battery cell code of the battery cell is sent to the production execution system for verification to obtain the verification result, including: In response to the battery cell arriving at the front weighing station, based on the front scanning signal sent by the controller, the scanning mechanism is controlled to scan the battery cell to obtain the battery cell code of the battery cell; The battery cell code is sent to the production execution system so that the production execution system verifies the battery cell code to obtain the verification result.

3. The method for entering and exiting a station according to claim 2, characterized in that: Before sending the cell code to the production execution system so that the production execution system verifies the cell code and obtains the verification result, the station entry and exit method further includes: Performing injection qualification verification on the battery cell code to obtain a verification result; The sending the cell code to the production execution system so that the production execution system verifies the cell code and obtains the verification result includes: In response to the verification result being successful, the cell code is sent to a production execution system, so that the production execution system verifies the cell code to obtain the verification result.

4. The method for entering and exiting a station according to claim 3, characterized in that: The inbound and outbound method also includes: In response to the verification result being a successful verification, sending the cell code to the controller to receive a cell data code sent by the controller that matches the cell code; The battery cell data is encoded and written into a preset battery cell database to update the preset battery cell database.

5. The method for entering and exiting a station according to any one of claims 1 to 4, characterized in that: In response to the verification result being a successful verification, obtaining the front weighing data of the battery cell includes: In response to the verification result being a successful verification, based on the front weighing signal sent by the controller, the front weighing mechanism deployed on the front weighing station is controlled to weigh the battery cell to obtain the front weighing data; In response to the previous weighing data being within the first weight range, obtaining a withstand voltage test result corresponding to the battery cell transported to the test station includes: In response to the previous weighing data being within the first weight range, transporting the battery cell to the testing station under the action of the controller; Based on the test signal sent by the controller, the test mechanism deployed on the test station is controlled to perform a withstand voltage test on the battery cell to obtain the withstand voltage test result.

6. The method for entering and exiting a station according to claim 5, characterized in that: The battery cell is the first battery cell entering the front weighing station in the current shift, and the entry and exit method further includes: The front weighing mechanism is subjected to a first-piece spot inspection using standard weights to obtain the front weighing mechanism whose first-piece spot inspection data meets a preset error range.

7. The method for entering and exiting a station according to any one of claims 1 to 4, characterized in that: In response to the production execution system verifying that the cell entry signal is successful, continuing to transport the cell to the liquid injection station and the post-weighing station to complete the liquid injection of the cell and obtain the post-weighing data of the cell, including: In response to the production execution system verifying that the cell entry signal is successful and the cell is transported to the liquid injection station, based on the liquid injection signal sent by the controller, the liquid injection mechanism deployed at the liquid injection station is controlled to inject liquid into the cell to complete the liquid injection of the cell; In response to the completion of the cell filling and the transportation of the cell to the post-weighing station, based on the post-weighing signal sent by the controller, the post-weighing mechanism deployed at the post-weighing station is controlled to post-weigh the cell to obtain the post-weighing data.

8. The station entry and exit method according to claim 7, characterized in that: The battery cell is the first battery cell to enter the post-weighing station in the current shift, and the entry and exit method further includes: The first piece spot inspection of the rear weighing mechanism is performed using standard weights to obtain the rear weighing mechanism whose first piece spot inspection data meets a preset error range.

9. The method for entering and exiting a station according to any one of claims 1 to 4, characterized in that: The entry and exit methods include: Based on the cell data encoding matched by the cell code, the pre-weighing data, the post-weighing data, the weight difference and the withstand voltage test result are written into a preset cell database to update the preset cell database; The weight difference is the difference between the post-weighing data and the pre-weighing data.

10. The method for entering and exiting a station according to claim 7, characterized in that: The inbound and outbound method also includes: Based on the post-scanning signal sent by the controller, the scanning mechanism is controlled to scan the battery cell at the post-weighing station to obtain the battery cell code; The battery cell code is sent to a controller to obtain the injection data corresponding to the battery cell at the injection station sent by the controller, and the injection data is stored in a preset battery cell database.

11. The method for entering and exiting a station according to any one of claims 1 to 4, characterized in that: The injection host computer includes an entry and exit display interface, the entry and exit display interface includes: an entry and exit data frame, and the entry and exit method includes: In response to the battery cell arriving at the front weighing station, displaying the battery cell code of the battery cell in the inbound and outbound data frame, and sending the battery cell code to the production execution system for verification to obtain the verification result; In response to the verification result being a successful verification, displaying the previous weighing data of the battery cell in the entry / exit data frame, and in response to the previous weighing data being within the first weight range, displaying the withstand voltage test result of the battery cell transported to the test station in the entry / exit data frame; In response to the withstand voltage test result meeting the preset withstand voltage requirement, displaying the cell entry signal in the entry and exit data frame, and sending the cell entry signal to the production execution system; In response to the production execution system verifying that the cell entry signal is successful, the cell is continued to be transported to the liquid injection station and the post-weighing station, and the liquid injection data of the cell and the post-weighing data of the cell are sequentially displayed in the entry and exit data frame; In response to the post-weighing data being within the second weight range, the battery cell is completed in and out of the injection process.

12. A battery cell entry and exit system, characterized in that: The in-and-out station system includes: a liquid injection host computer, a controller and a production execution system, wherein: In response to the battery cell to be injected arriving at the front weighing station, the injection host computer sends the battery cell code of the battery cell to the production execution system for verification to obtain the verification result; In response to the verification result indicating that the verification is successful, the liquid injection host computer obtains the front weighing data of the battery cell; The liquid injection host computer obtains the withstand voltage test result of the battery cell transported to the test station in response to the previous weighing data being in the first weight range; The liquid injection host computer sends a cell entry signal to the production execution system in response to the withstand voltage test result meeting the preset withstand voltage requirement; The liquid injection host computer responds to the production execution system verifying that the cell entry signal is successful, and under the action of the controller, continues to transport the cell to the liquid injection station and the post-weighing station to complete the liquid injection of the cell and obtain the post-weighing data of the cell; In response to the post-weighing data being in the second weight range, the injection host computer completes the entry and exit of the battery cell in the injection process.

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