Battery cell inbound and outbound system and method

Abstract

A battery cell inbound and outbound system and method. The battery cell inbound and outbound method is applied to an electrolyte injection upper computer, and comprises: in response to a battery cell to be subjected to electrolyte injection arriving at a pre-weighing station, sending a battery cell code of the battery cell to a manufacturing execution system for verification, so as to obtain a verification result; in response to the verification result being that the verification is successful, acquiring pre-weighing data of the battery cell; in response to the pre-weighing data being within a first weight range, acquiring a withstand voltage test result of the battery cell that is transported to a testing station; in response to the withstand voltage test result meeting a preset withstand voltage requirement, sending a battery cell inbound signal to the manufacturing execution system; in response to the manufacturing execution system successfully verifying the battery cell inbound signal, continuing to transport the battery cell to an electrolyte injection station and a post-weighing station, so as to complete the electrolyte injection of the battery cell and acquire post-weighing data of the battery cell; and in response to the post-weighing data being within a second weight range, completing the inbound and outbound of the battery cell in the electrolyte injection process.

Description

Battery cell entry and exit system and method

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure is based on Chinese patent application number 202410175859.X, application date February 7, 2024, and invention name “System and method for entry and exit of battery cells”, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into the present disclosure as a reference. Technical Field

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

[0004] In related technologies, it is crucial to obtain real-time production data of the battery cells when they enter the liquid injection process. If the real-time production data cannot be traced, it will affect the control of the battery cells during the liquid injection process, thereby affecting the stability and accuracy of the battery cells during the liquid injection process.

[0005] Summary of the Invention

[0006] The main purpose of the present disclosure 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 process, thereby improving the stability and accuracy of the battery cells in the liquid injection process.

[0007] To achieve the above objectives, the present disclosure proposes a method for entering and exiting a battery cell, which is applied to a liquid injection host computer. The method includes:

[0008] In response to the battery cell to be filled 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 a verification result;

[0009] In response to the verification result being a successful verification, obtaining front weighing data of the battery cell;

[0010] 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 the testing station;

[0011] In response to the withstand voltage test result meeting the preset withstand voltage requirement, sending a cell entry signal to the production execution system;

[0012] 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 to complete the liquid filling of the battery cell and obtain the post-weighing data of the battery cell;

[0013] 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.

[0014] Through the above scheme, on the one hand, with the help of the interaction between the liquid filling host computer and MES, the battery cell code, pre-weighing data and voltage test results of the battery cell to be filled can be verified; in this way, the relevant data of the battery cell entering the liquid filling link can be verified and traced in real time, so as to prevent abnormal battery cells entering the liquid filling link; on the other hand, based on the successful verification of multiple parameters of the battery cell to be filled, the liquid filling host computer successfully verifies the battery cell entry signal with the help of MES, and correspondingly executes the battery cell filling and post-weighing of the battery cell after filling, so as to further improve the stability and efficiency of the battery cell in the liquid filling link.

[0015] In an embodiment of the present disclosure, in response to the battery cell to be filled with liquid 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, 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 code of the battery cell; sending the battery code to the production execution system so that the production execution system verifies the battery code to obtain the verification result.

[0016] Through the above solution, the obtained 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 obtained cell code.

[0017] In the embodiment of the present disclosure, the sending of the cell code to the production execution system so that the production execution system verifies the cell code, and before obtaining the verification result, the entry and exit method further includes: performing injection qualification verification on the cell code to obtain a verification result; the sending of the cell code to the production execution system so that the production execution system verifies the cell code to obtain the verification result includes: in response to the verification result being successful, sending the cell code to the production execution system so that the production execution system verifies the cell code to obtain the verification result.

[0018] The above solution uses the injection host computer to verify the injection qualification of the cell code. If the injection qualification verification passes, the cell code is then verified by the MES. This can improve the accuracy of the obtained cell code, so as to accurately determine the cell entering the injection process. It also provides a basis for the subsequent injection host computer and MES to trace the data of the cell entering the injection process in real time based on the cell code.

[0019] In an embodiment of the present disclosure, the entry and exit method further 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.

[0020] Through the above solution, 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 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.

[0021] In an embodiment of the present disclosure, 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 the first weight range, obtaining the corresponding voltage test result of 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 test on the battery cell and obtain the voltage test result.

[0022] Through the above solution, the liquid injection host computer, under the control of the controller, sequentially performs pre-weighing and voltage testing on the battery cells. The voltage test is only performed when the pre-weighing data obtained falls within a certain weight range. This allows for real-time tracing of data from each step of the liquid injection process, while also improving the stability and accuracy of the battery cells during the liquid injection process by verifying whether the pre-weighing data falls within the first weight range.

[0023] In the embodiment of the present disclosure, 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 the preset error range.

[0024] 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 entering the filling process or entering the station later in the current shift (including the first battery cell entering the station in the current shift) are more accurate.

[0025] In an embodiment of the present disclosure, 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 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.

[0026] With this solution, after the cell entry signal is successfully verified, the injection host computer transports the cells for injection in sequence and then post-weighs them to obtain post-weighing data. This allows for improved stability and accuracy in the cell injection process by acquiring every parameter at the entry and exit stages.

[0027] In the embodiment of the present disclosure, the battery cell is the first battery cell to enter the post-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 post-weighing mechanism to obtain the post-weighing mechanism whose first-piece inspection data meets the preset error range.

[0028] 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 being weighed, so as to ensure the accuracy of data measurement during the post-weighing of other battery cells that enter the filling process or enter the station later in the current shift (including the first battery cell entering the station in the current shift).

[0029] In an embodiment of the present disclosure, the entry and exit method includes: based on the cell data encoding that matches the cell code, writing the front weighing data, the rear weighing data, the weight difference and the voltage test result 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.

[0030] Through the above solution, 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.

[0031] In an embodiment of the present disclosure, 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.

[0032] Through the above solution, 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 related operations on the battery cell.

[0033] In the embodiment of the present disclosure, 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 successful, 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 operation status 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 meeting 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 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.

[0034] The above solution can not only realize real-time verification and traceability of relevant data of battery cells entering the liquid injection link, thereby realizing foolproofing of abnormal battery cells entering the liquid injection link, but also facilitate relevant operators to view and analyze the real-time data of battery cells; on the one hand, the liquid injection host computer successfully verifies and displays multiple parameters of the battery cells to be injected, and with the help of MES, successfully verifies the battery cell entry signal, and accordingly executes the battery cell injection and 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.

[0035] The present disclosure also provides a battery cell entry and exit system, which includes: a liquid injection host computer, a controller, and a production execution system, wherein:

[0036] In response to the battery cell to be injected arriving at the front weighing station, the liquid injection host computer sends the battery cell code of the battery cell to the production execution system for verification to obtain a verification result;

[0037] 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;

[0038] 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 within the first weight range;

[0039] In response to the withstand voltage test result meeting the preset withstand voltage requirement, the liquid injection host computer sends a cell entry signal to the production execution system;

[0040] The liquid injection host computer responds to the production execution system to verify that the battery cell entry signal is successful, and under the action of the controller, 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;

[0041] In response to the post-weighing data being in the second weight range, the liquid injection host computer completes the entry and exit of the battery cell in the liquid injection process.

[0042] The embodiments of the present disclosure provide 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 simultaneously uses the interaction between the liquid injection host computer and the MES 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, thereby preventing 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 the MES based on 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.

[0043] The above description is only an overview of the technical solution of the present disclosure. In order to more clearly understand the technical means of the present disclosure, 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 disclosure more obvious and easy to understand, the specific implementation methods of the present disclosure are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0045] FIG1 is a schematic diagram of a first flow chart of a method for entering and exiting a station for battery cells according to some embodiments of the present disclosure;

[0046] FIG2 is a second flow chart of a method for entering and exiting a station for battery cells according to some embodiments of the present disclosure;

[0047] FIG3 is a third flow chart of a method for entering and exiting a battery cell according to some embodiments of the present disclosure;

[0048] FIG4 is a fourth flow chart of a method for entering and exiting a battery cell according to some embodiments of the present disclosure;

[0049] FIG5 is a fifth flow chart of a method for entering and exiting a battery cell according to some embodiments of the present disclosure;

[0050] FIG6 is a schematic diagram of an entry and exit display interface shown in some embodiments of the present disclosure;

[0051] FIG7 is a first schematic diagram of a display interface corresponding to a liquid injection host computer provided in an embodiment of the present disclosure;

[0052] FIG8 is a second schematic diagram of a display interface corresponding to a liquid injection host computer provided in an embodiment of the present disclosure;

[0053] FIG9 is a third schematic diagram of a display interface corresponding to a liquid injection host computer provided in an embodiment of the present disclosure;

[0054] FIG10 is a fourth schematic diagram of a display interface corresponding to a liquid injection host computer provided in an embodiment of the present disclosure;

[0055] FIG11 is a fifth schematic diagram of a display interface corresponding to a liquid injection host computer provided in an embodiment of the present disclosure;

[0056] FIG12 is a sixth schematic diagram of a display interface corresponding to a liquid injection host computer provided in an embodiment of the present disclosure;

[0057] FIG13 is a seventh schematic diagram of a display interface corresponding to a liquid injection host computer provided in an embodiment of the present disclosure;

[0058] FIG14 is a schematic diagram of the composition structure of a battery cell entry and exit system provided by some embodiments of the present disclosure;

[0059] FIG15 is a schematic diagram of a battery cell entry and exit system implementing code scanning, weighing and entry verification according to some embodiments of the present disclosure;

[0060] FIG16 is a schematic diagram of a cell entry and exit system implementing Hipot entry into a station according to some embodiments of the present disclosure;

[0061] FIG17 is a schematic diagram of a battery cell entry and exit system implementing post-network weighing according to some embodiments of the present disclosure;

[0062] FIG18 is a schematic diagram of an exit code scanning system for a battery cell provided in some embodiments of the present disclosure. DETAILED DESCRIPTION

[0063] To make the purpose, technical solutions and advantages of the embodiments of the present disclosure more clear, the specific technical solutions of the present disclosure will be further described in detail below in conjunction with the drawings in the embodiments of the present disclosure. The following embodiments are used to illustrate the present disclosure, but are not intended to limit the scope of the present disclosure.

[0064] Unless otherwise defined, all technical and scientific terms used in this disclosure have the same meaning as commonly understood by those skilled in the art in the art of this disclosure. The terms used in this disclosure are only for the purpose of describing the present embodiment and are not intended to limit this disclosure.

[0065] 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.

[0066] If similar descriptions of "first / second" appear in the application documents, the following explanation is added. In the following description, the terms "first\second\third" are merely used to distinguish similar objects and do not represent a specific order of the objects. It can be understood that "first\second\third" can be interchanged with the specific order or sequence where permitted, so that the embodiment described herein can be implemented in an order other than that illustrated or described herein.

[0067] In the embodiments of the present disclosure, 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.

[0068] At present, the application of new energy batteries in life and industry is becoming more and more extensive. New energy batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but are also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as in aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding. In the embodiments of the present disclosure, 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 battery pack, thereby being used to supply power to electrical devices. A battery cell may be a secondary battery, which refers to a battery cell that can continue to be used by activating the active material by charging after the battery cell is discharged. The battery cell may be a lithium-ion battery, a sodium-ion battery, a sodium-lithium-ion battery, a lithium metal battery, a sodium metal battery, a lithium-sulfur battery, a magnesium-ion battery, a nickel-hydrogen battery, a nickel-cadmium battery, a lead-acid battery, etc., and the embodiments of the present disclosure are not limited to this.

[0069] In the embodiment of the present disclosure, 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 through a busbar.

[0070] In the related art, liquid injection is a key process in the production 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), voltage test results, liquid injection data, etc., will directly affect the liquid injection stability and efficiency of the battery cell. For example, if the pre-weighing data of the battery cell is not within the preset weight range, or the 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.

[0071] Based on the above problems, the embodiments of the present disclosure disclose 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 voltage test results of the battery cells to be injected are verified. In this way, the relevant data of the battery cells entering the liquid injection link can be verified and traced in real time, thereby preventing abnormal battery cells entering the liquid injection link; on the other hand, based on the successful verification of multiple parameters of the battery cells to be injected, the liquid injection host computer successfully verifies the battery cell entry signal with the help of the MES, 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.

[0072] 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 disclosure as an example. The method for entering and exiting a battery cell according to an embodiment of the present disclosure is applied to a liquid injection host computer. Please refer to FIG1 , which is a flow chart of a method for entering and exiting a battery cell according to some embodiments of the present disclosure. The following description is made in conjunction with FIG1 :

[0073] Step S101: In response to a battery cell to be filled 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.

[0074] In the disclosed embodiment, 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 battery cell entry and exit method when running the program.

[0075] In the embodiment of the present disclosure, the injection host computer can exchange data with the controller; wherein the controller can be: a programmable logic controller (PLC) and the like.

[0076] In the disclosed embodiments, the Manufacturing Execution System (MES) is a computerized system for real-time monitoring, tracking, and controlling the production process. The MES can integrate and manage 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 controller, that is, the controller and the MES can exchange information.

[0077] It should be noted that in the battery cell production process, such as the liquid filling process, MES usually has the following functions: 1. Production scheduling: It can automatically calculate the production plan and scheduling based on the production order and resource status of the battery cell, thereby optimizing 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, conducting real-time analysis and feedback, it 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 filling 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 perform real-time analysis of battery cell production data to provide strong support for production decisions.

[0078] In the embodiment of the present disclosure, 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 disclosure does not impose any limitation on this.

[0079] 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.

[0080] In the embodiments of the present disclosure, 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 make up 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: lithium-ion battery cell (Li-ion Cell), lithium polymer battery cell (Li-polymer Cell), nickel metal hydride battery cell (NiMH Cell), etc. The embodiments of the present disclosure do not impose any restrictions on the type of battery cell, and the specific type can be selected according to the actual application scenario.

[0081] In the embodiment of the present disclosure, the battery cell is the core component of the battery pack, and 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 intended to store electrical energy and provide power supply. The components of the battery pack include at least: battery cells, battery management system (BMS), casing, connecting wiring harness, connectors and interfaces, 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 embodiment of the present disclosure does not impose any restrictions on this, and the specific selection can be made according to the actual application scenario.

[0082] In the embodiment of the present disclosure, the number of battery cells to be injected with liquid can be one, or two or more, and the embodiment of the present disclosure does not impose any limitation on this.

[0083] In the embodiment of the present disclosure, when the battery cells to be injected arrive at the front weighing station, the relevant battery cell transport mechanism may transport the tray carrying the battery cells to the front weighing station. Here, the control system (controller) corresponding to the battery cells in the injection process may control the transportation of the battery cells so that the injected battery cells arrive at the front weighing station; or the controller may control the relevant gripping mechanism to grip the battery cells to be injected from the previous station or the previous process (relative to the injection process) to the front weighing station.

[0084] In the embodiment of the present disclosure, the front weighing station can be equipped with a corresponding code scanning mechanism for reading the cell code of the battery cell. Here, the liquid injection host computer can control the code scanning mechanism under the action of the controller to scan the battery cell to obtain the 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.

[0085] In the embodiment of the present disclosure, the cell code may be a digital representation or a combination of numbers and letters; the cell code is a cell code used to represent the cell model, capacity, internal resistance and other information.

[0086] In the disclosed embodiment, the MES verifies the cell code of the cell to determine whether the cell is a cell that needs to enter the liquid injection process to obtain the verification result; or it can verify the format and length of the cell code of the cell to obtain 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 disclosed embodiment does not impose any restrictions on this.

[0087] 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.

[0088] Step S102: In response to the verification result being successful, obtaining the front weighing data of the battery cell.

[0089] In the embodiment of the present disclosure, 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.

[0090] In the embodiment of the present disclosure, when the liquid injection host computer obtains the verification result of the battery cell code and the verification is successful, the battery cell can be weighed at the front weighing station. 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. A weighing instrument 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.

[0091] It should be noted that the pre-weighing data is the weight of the battery cell and can be expressed in g. 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 sequence to obtain the pre-weighing data for each battery cell to be injected. The pre-weighing data for different battery cells to be injected can be the same or different.

[0092] 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.

[0093] In the embodiment of the present disclosure, 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 to make the controller issue an abnormal alarm signal, etc.

[0094] It can be understood that through the above steps, when the liquid 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 liquid injection, thereby enabling the subsequent real-time tracing of the production data of the battery cell in the liquid injection process, thereby improving the stability and accuracy of the battery cell liquid injection.

[0095] 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 testing station.

[0096] In the embodiment of the present disclosure, the liquid 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 attribute information of the battery cell to be injected; exemplarily, the first weight range is: 300g~350g.

[0097] In the embodiment of the present disclosure, after receiving the front weighing data in the first weight range, the liquid filling host computer can transport the battery cell to the testing station under the action of the controller; wherein the testing station can be adjacent to the front weighing station or far away.

[0098] In the disclosed embodiment, a testing mechanism can be deployed at the test station to perform a withstand voltage test on the battery cells at the test station, thereby obtaining the withstand voltage test results of the battery cells. The withstand voltage test can be a high voltage insulation resistance test (battery cell hipot test), a method of testing the insulation performance of the battery cells by applying a high voltage. Here, the battery cell hipot test, as a commonly used safety testing method, can effectively test the insulation performance of the battery cells to ensure that they will not have safety hazards such as leakage and breakdown during use.

[0099] In the embodiment of the present disclosure, 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 previous weighing data not being within the first weight range, 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.

[0100] It is understandable that through the above steps, the injection host computer transports the battery cell to the test station and obtains the voltage test results of the battery cell when the pre-weighing data of the battery cell is within the first weight range. In this way, not only can the production data of the battery cell entering the injection process be traced in real time, but also abnormal battery cells 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 injection process.

[0101] Step S104: In response to the withstand voltage test result meeting the preset withstand voltage requirement, a cell entry signal is sent to the production execution system.

[0102] In the embodiment of the present disclosure, 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, etc.

[0103] In the embodiment of the present disclosure, 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.

[0104] In the embodiment of the present disclosure, 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.

[0105] 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 the MES, so that the MES can record the relevant data of the battery cell to be injected in real time, thereby enabling the MES to prevent battery cells with abnormal injection, and thus improve the stability and accuracy of the battery cell in the injection link.

[0106] Step S105 : In response to the production execution system verifying that the cell entry signal is successful, continue transporting the cell to the liquid filling station and the post-weighing station to complete the liquid filling of the cell and obtain the post-weighing data of the cell.

[0107] In the embodiment of the present disclosure, when the liquid filling 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 filling station and the post-weighing station in sequence, that is, completing the key operations of the battery cell in the liquid filling process in sequence, namely: liquid filling, and after the liquid filling is completed, entering the subsequent post-weighing station.

[0108] In the embodiment of the present disclosure, the injection station can be equipped with an injection mechanism to inject liquid into the battery cell. At the same time, the post-weighing station can also be equipped with a post-weighing mechanism to weigh the battery cell after injection (the 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 disclosure does not impose any limitation on this.

[0109] In the disclosed embodiment, first, after the liquid injection host computer responds to the MES verification signal of the battery cell entering the station successfully, it can, under the action of the PLC, transport the battery cell to the liquid injection station, and based on the liquid injection signal sent by the controller, control the liquid injection mechanism deployed at the liquid injection station 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, under the action of the controller, transport the battery cell to the post-weighing station, and 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 battery cell to obtain post-weighing data.

[0110] It is understood that through the above steps, the injection host computer responds to the MES's successful verification of the battery cell signal and sequentially performs injection and post-weighing of the battery cell. This allows the MES to record the relevant data of the battery cell to be injected in real time, thereby improving the stability and accuracy of the battery cell during the injection process based on the injection data and post-weighing data.

[0111] Step S106 : 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.

[0112] In the embodiment of the present disclosure, the liquid 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 attribute information of the battery cell to be injected; exemplarily, the second weight range is: 500g~550g.

[0113] 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.

[0114] Correspondingly, the first weight range and the second weight range respectively correspond to different data endpoints.

[0115] It can be understood that through the above scheme, first, in response to the battery cell to be filled with liquid 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 voltage test result of the battery cell transported to the test station is obtained, and in response to the voltage test result meeting the preset voltage test requirement, the battery cell entry signal is sent to the production execution system; finally, in response to the production execution system successfully verifying the battery cell entry signal, the battery cell continues to be transported 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, and in response to the post-weighing data being within the second weight range, the battery cell is completed in and out of the liquid filling process. In this way, on the one hand, with the help of the interaction between the liquid filling host computer and MES, the battery cell code, pre-weighing data and voltage test results of the battery cell to be filled can be verified; in this way, the relevant data of the battery cell entering the liquid filling link can be verified and traced in real time, so as to prevent abnormal battery cells entering the liquid filling link; on the other hand, the liquid filling 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 filled, and accordingly executes the battery cell filling and post-weighing of the battery cell after filling, so as to further improve the stability and efficiency of the battery cell in the liquid filling link.

[0116] In some embodiments of the present disclosure, the sending of the cell code to the MES in step S101 to obtain the verification result corresponding to the cell code can be achieved by the following steps S201 and S202. Referring to FIG2 , which is a second flow diagram of the method for entering and exiting a cell provided in some embodiments of the present disclosure, the following description is made in conjunction with FIG2 :

[0117] Step S201: 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 cell code of the battery cell.

[0118] In the disclosed embodiment, the liquid filling host computer can receive a pre-scanning signal sent by the controller in response to the battery cell arriving at the pre-weighing station. Here, the controller can detect that the battery cell has arrived at the pre-weighing station and send a pre-scanning signal to the liquid filling host computer, so that the liquid filling host computer controls the scanning mechanism to scan the battery cell based on the pre-scanning signal to obtain the battery cell code.

[0119] 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.

[0120] Step S202: Send the cell code to the production execution system, so that the production execution system verifies the cell code and obtains the verification result.

[0121] In the embodiment of the present disclosure, the liquid injection host computer sends the acquired cell code to the MES so that the MES can verify the cell code, such as verifying the format of the cell code, to obtain a verification result.

[0122] It can be understood that through the above steps, the obtained 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 obtained cell code.

[0123] In some embodiments of the present disclosure, the injection host computer may further perform the following step S2021 before performing the above step S202:

[0124] Step S2021: Verify the battery cell code for liquid injection qualification and obtain a verification result.

[0125] In the disclosed embodiment, the liquid injection host computer first performs liquid injection qualification verification on the obtained 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.

[0126] In the disclosed embodiment, the liquid injection host computer can use the previously acquired cell code to be injected and match it with the acquired cell code to verify the injection qualification of the cell code, thereby obtaining a verification result. Here, the cell code to be injected can be sent to the liquid injection host computer by the main controller of the injection system in which the liquid injection host computer is located.

[0127] Correspondingly, after the liquid injection host computer completes step S2021, the MES verifies the battery cell code in the above step S202, which can be achieved by the following step S2022:

[0128] 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 and obtains the verification result.

[0129] In the embodiment of the present disclosure, the liquid injection host computer verifies that the liquid injection qualification of the battery cell code is 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.

[0130] It should be noted that, when the verification result of the liquid injection host computer for the liquid injection qualification verification of the battery cell code is a verification failure, the verification can be performed again accordingly, or the new battery cell code can be identified and obtained again and the verification can be performed again accordingly 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 can be 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.

[0131] It is understandable that through the above steps, the cell code is verified for liquid injection qualification by the liquid injection host computer, and if the liquid injection qualification verification is passed, the cell code is then verified by the MES. This, on the one hand, can improve the accuracy of the obtained cell code, 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 data of the cell entering the liquid injection process in real time based on the cell code.

[0132] Here, the liquid injection host computer performs liquid injection qualification verification in response to the liquid injection 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 that the preset battery cell database in the liquid injection host computer is updated in real time based on the battery cell in the liquid injection link, that is, the battery cell entry and exit method provided by the embodiment of the present disclosure can also perform the following steps A1 and A2:

[0133] 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.

[0134] In the embodiment of the present disclosure, the injection host computer can synchronously send the cell code to the controller and MES in response to the successful injection qualification verification of the cell. Here, after the controller receives the cell code, it can send the cell data code matching the cell code to the injection host computer.

[0135] Here, the cell code corresponds to the cell data code one by one. The cell data code can be the code inside the liquid injection host computer for managing the cells entering the liquid injection process. Its data format and length can be determined according to actual needs.

[0136] Step A2: Encode the battery cell data and write it into a preset battery cell database to update the preset battery cell database.

[0137] In the embodiment of the present disclosure, after receiving the battery cell data code, the liquid injection host computer may write the data code into a locally pre-stored preset battery cell database to update the preset battery cell database.

[0138] It should be noted that the number of battery cells included in the preset battery cell database may depend on 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 obtained by the liquid 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 disclosure do not impose any limitations on this.

[0139] In the disclosed embodiment, 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 rest station of the cell entering the injection process), and weighing data (the weight data corresponding to the first and last stations of the cell to be injected into the injection process).

[0140] It can be understood that through the above steps, the relevant parameters in the preset battery cell database are updated in real time based on 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.

[0141] In some embodiments of the present disclosure, obtaining the pre-weighing data of the battery cell in the above step S102 can be achieved by the following step S301. Referring to FIG3, which is a flow chart of the third method for entering and exiting a battery cell provided in some embodiments of the present disclosure, the following description is made in conjunction with FIG3:

[0142] 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.

[0143] In the embodiment of the present disclosure, after the liquid filling host computer receives the verification result of the battery cell code sent by the 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 the 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 filling host computer.

[0144] Correspondingly, obtaining the withstand voltage test result of the battery cell in the above step S103 can be achieved by the following steps S302 and S303.

[0145] Step S302: In response to the previous weighing data being within the first weight range, the controller is operated to transport the battery cell to the testing station.

[0146] In an embodiment of the present disclosure, 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.

[0147] 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.

[0148] In the embodiment of the present disclosure, when the liquid injection host computer determines that the battery cell is at 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 voltage withstand test on the battery cell, thereby obtaining the voltage withstand test result.

[0149] 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.

[0150] In the embodiment of the present disclosure, the testing mechanism may also be deployed on the industrial control equipment where the liquid injection host computer is located. Here, the testing mechanism may be a Hipot testing mechanism for the battery cell.

[0151] It is understood that through the above steps, the liquid injection host computer, under the control of the controller, sequentially performs pre-weighing and voltage testing on the battery cells, and only performs the voltage test on the battery cells when the pre-weighing data obtained is within a certain weight range. In this way, on the one hand, the data of each link of the battery cell entering the liquid injection process can be traced in real time, and on the other hand, based on the verification of the pre-weighing data, that is, whether it is within the first weight range, the stability and accuracy of the battery cell during the liquid injection process can be improved.

[0152] In the embodiment of the present disclosure, if the battery cell is the first battery cell to enter the pre-weighing station in the current shift, the battery cell entry and exit method provided by the embodiment of the present disclosure may further perform the following step B:

[0153] 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.

[0154] In the disclosed embodiment, standard weights are required to perform a first-piece inspection of the front weighing mechanism to ensure that 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 to enter the station during the current shift, that is, the first battery cell injected by the injection host computer within a period of time.

[0155] 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 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.

[0156] It should be noted that the aforementioned 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 within the first weight range to update the preset cell database.

[0157] In some embodiments of the present disclosure, the completion of the battery cell injection and the acquisition of the post-weighing data of the battery cell in step S105 can be achieved by the following steps S401 and S402. Referring to FIG4 , which is a fourth flow chart of the battery cell entry and exit method provided in some embodiments of the present disclosure, the following description is made in conjunction with FIG4 :

[0158] 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 liquid filling station, based on the liquid filling signal sent by the controller, the liquid filling mechanism deployed on the liquid filling station is controlled to fill the battery cell to complete the liquid filling of the battery cell.

[0159] In the disclosed embodiment, the liquid injection host computer responds to the MES verifying that the cell entry signal is successful, and the cell is transported to the liquid injection station. Here, the MES can verify the cell entry signal, such as checking whether the cell can enter the station. At the same time, if the MES successfully verifies the cell entry signal, it can send a corresponding transportation signal to the controller, so that the controller controls the relevant transportation mechanism to transport the cell to the liquid injection station.

[0160] It should be noted that the battery cells are transported to the liquid injection station by a controller controlling a related gripping mechanism to grab the battery cells onto the corresponding tray used to hold the battery cells and transport the tray to the liquid injection station. Furthermore, before the battery cells enter the liquid injection station, multiple stations can be operated in sequence. Here, multiple stations can refer to multiple preparatory stations before liquid injection, such as the liquid preparation station, the capping station, and the station for tying the battery cells to the tray.

[0161] In the embodiment of the present disclosure, 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.

[0162] Step S402: In response to the completion of the battery cell injection and the transportation of the battery 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 battery cell to obtain the post-weighing data.

[0163] In the disclosed embodiment, the completion of liquid injection can be achieved by the controller sending a liquid injection completion signal to the liquid injection host computer upon detecting that the liquid injection mechanism has completed liquid injection into the battery cell, such as when the reserve liquid in the liquid injection mechanism has been exhausted. The controller also controls the transportation of the liquid-filled battery cell to the post-weighing station.

[0164] It should be noted that after the battery cell is injected with liquid, 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 that the injection process of the battery cell is complete.

[0165] It is understood that through the above steps, after the battery cell entry signal is successfully verified, the injection host computer transports the battery cells for injection in sequence and weighs them after the injection is completed to obtain the post-weighing data. In this way, by obtaining each parameter of the entry and exit process, the stability and accuracy of the battery cell during the injection process can be improved.

[0166] 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 by the embodiment of the present disclosure can also perform the following step C:

[0167] 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.

[0168] In the disclosed embodiment, standard weights are required to perform a first-piece inspection of the rear weighing mechanism to ensure that the measured parameters of the rear weighing mechanism meet the preset error range. Here, the battery cell to be injected is the first battery cell to enter the station during the current shift, that is, the first battery cell injected by the injection host computer within a period of time.

[0169] 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 filling process or enter the station later in the current shift (including the first battery cell entering the station in the current shift).

[0170] In some embodiments of the present disclosure, the injection host computer may store the above-obtained weighing data, i.e., the pre-weighing data and post-weighing data of the battery cell, so as to facilitate the subsequent review and analysis of the data of the battery cell during the injection process. That is, the entry and exit method provided in the above embodiment may further perform the following step D:

[0171] Step D: Based on the cell data encoding matched with the cell code, the front weighing data, the rear weighing data, the weight difference and the withstand voltage test result are written into a preset cell database to update the preset cell database.

[0172] The weight difference is the difference between the post-weighing data and the pre-weighing data.

[0173] In the disclosed embodiment, the cell data encoding may be obtained from the controller as mentioned above. Accordingly, the pre-weighing data, withstand voltage test results, post-weighing data, and weight difference of the cell during the liquid injection process may be written to a preset cell database to update the preset cell database.

[0174] In the disclosed embodiment, 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 pre-weighing data, post-weighing data, weight difference, and withstand voltage test results, into a preset cell database; or the liquid injection host computer can write the pre-weighing data into the preset cell database based on the cell data encoding of the cell code in response to the pre-weighing data being within the first weight range. Similarly, the liquid injection host computer writes the withstand voltage test results into the preset cell database based on the cell data encoding of the cell code in response to the withstand voltage test results meeting the preset withstand voltage requirements; and so on and so forth, the post-weighing data and weight difference are similar and will not be described in detail here.

[0175] 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.

[0176] 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 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.

[0177] In some embodiments of the present disclosure, the liquid injection host computer can perform corresponding post-scanning and relevant data acquisition on the battery cells at the post-weighing station, that is, the battery cell entry and exit method provided by the embodiment of the present disclosure can also perform the following steps E1 and E2:

[0178] 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.

[0179] In the embodiment of the present disclosure, 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.

[0180] 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.

[0181] 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.

[0182] 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.

[0183] In the embodiment of the present disclosure, the injection data, which can 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 (battery cell data encoding matching the battery cell code) in the preset battery cell database to update the preset battery cell database.

[0184] It can be understood that through the above steps, the relevant parameters in the preset battery cell database are updated in real time based on the battery cell code, so as 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.

[0185] In some embodiments of the present disclosure, the injection host computer includes an entry and exit display interface, which includes an entry and exit data frame. Correspondingly, the above steps S101 to S106 involved in the embodiments of the present disclosure can be implemented by following the steps S501 to S505. Please refer to Figure 5, which is a flow chart of the entry and exit method of the battery cell provided in some embodiments of the present disclosure. The following is explained in conjunction with Figure 5:

[0186] Step S501: In response to the battery cell arriving at the front weighing station, the battery cell code of the battery cell is displayed in the inbound and outbound data frame, and the battery cell code is sent to the production execution system for verification to obtain the verification result.

[0187] Step S502: In response to the verification result being successful, the previous weighing data of the battery cell is displayed in the entry and exit data box, and in response to the previous weighing data being within 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 box.

[0188] Step S503 : 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 the battery cell entry signal is sent to the production execution system.

[0189] Step S504: In response to the production execution system successfully verifying the battery cell entry signal, continue to transport the battery cell to the liquid filling station and the post-weighing station, and display the battery cell's liquid filling data and the battery cell's post-weighing data in the entry and exit data boxes in sequence.

[0190] Step S505 : 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.

[0191] In some embodiments of the present disclosure, the display format of the entry and exit data box included in the entry and exit display interface can be determined according to actual needs; for example, the entry and exit data box is displayed in a table or a curve. Here, the entry and exit data box is displayed in any area of ​​the entry and exit display interface.

[0192] 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).

[0193] In the embodiment of the present disclosure, 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 station of battery cells.

[0194] Here, please refer to Figure 6, which is a schematic diagram of an entry and exit display interface shown in some embodiments of the present disclosure, wherein the entry and exit display interface 601 includes: an entry and exit data box 6011; here, Figure 6 is only an example, and the entry and exit display interface in the actual production process of battery cells can be determined according to actual needs.

[0195] It can be understood that, through the above steps, on the basis of the liquid filling 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 filled arriving at the front weighing station, the battery cell code 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 within the first weight range, the 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 voltage test result meeting the preset 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 filling station and the post-weighing station, and the battery cell's liquid filling data and post-weighing data are displayed in the entry and exit data frame in sequence; and in response to the post-weighing data being within the second weight range, the battery cell's entry and exit in the liquid filling process is completed. In this way, on the one hand, with the help of the interaction between the liquid filling host computer and MES, the cell code, pre-weighing data and voltage test results of the battery cells to be filled can be verified and displayed; in this way, not only can the relevant data of the battery cells entering the liquid filling link be verified and traced in real time, thereby preventing abnormal battery cells entering the liquid filling link, but also it can be convenient for relevant operators to view and analyze the real-time data of the battery cells; on the other hand, the liquid filling host computer successfully verifies and displays multiple parameters of the battery cells to be filled, and with the help of MES, successfully verifies the battery cell entry signal, and correspondingly executes the battery cell filling and post-weighing of the battery cell after filling, further improving the stability and efficiency of the battery cell in the liquid filling link.

[0196] In some embodiments of the present disclosure, on the basis of the entry and exit display interface provided in the above embodiments presented by the liquid injection host computer, 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.

[0197] Here, referring to FIG7 , there is shown a schematic diagram 1 of a display interface corresponding to a liquid injection host computer provided in an embodiment of the present disclosure; 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 a control corresponding to the main interface, the following may be displayed on the display interface 700: a three-dimensional schematic architecture display area 702 of the liquid injection host computer, a log menu bar display area 703 corresponding to the liquid 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 liquid injection host computer, the code 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 liquid injection host computer.

[0198] In addition, the function interface selection area 701 may also include: data display interfaces for multiple operations corresponding to the battery cell filling process, such as: generating data output, Hipot process diagrams, 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 permission management. Correspondingly, the function interface selection area 701 may also include the above-mentioned entry and exit display interfaces.

[0199] Correspondingly, as shown in FIG8 , there is a second schematic diagram of a display interface corresponding to a liquid injection host computer provided by an embodiment of the present disclosure, wherein, in the function interface selection area 701 included in the display interface 700, when a trigger is received for the control corresponding to the electronic scale inspection, the following can be displayed in the display interface 700: a 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 a first-article production execution system verification parameter display area 802. Here, 801 is a table that records the inspection data in multiple times. In addition, 801 can also include: a weighing instrument related function touch control 8011, which is used to realize manual operation to make relevant adjustments to the weighing instrument.

[0200] Similarly, referring to FIG9 , which is a schematic diagram of a display interface corresponding to a liquid injection host computer provided in an embodiment of the present disclosure, wherein, within the function interface selection area 701 included in the display interface 700, when a control corresponding to the Hipot process diagram is triggered, the display interface 700 may display: Hipot process data display area 901. Here, the display format of the data in the Hipot process data display area 901 may be determined according to actual needs.

[0201] Here, please refer to Figure 10, which is a schematic diagram of a display interface corresponding to the liquid injection host computer provided in an embodiment of the present disclosure, wherein Figure 10 is the display interface presented when the control corresponding to the MES log query in the data query drop-down menu is triggered within the function interface selection area 701 included in the display interface 700.

[0202] In addition, please refer to Figures 11 to 13, which are schematic diagrams 5, 6 and 7 of the display interface corresponding to the liquid injection host computer provided in the embodiments of the present disclosure; wherein, Figure 11 is the display interface presented when the trigger of the control corresponding to the weighing instrument in the drop-down menu of the test tool is received in the function interface selection area 701 included in the display interface 700; Figure 12 is the display interface presented when the trigger of the control corresponding to the weighing instrument in the drop-down menu of the test tool is received in the function interface selection area 701 included in the display interface 700; Figure 13 is the display interface presented when the trigger of the control corresponding to the 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.

[0203] Here, the display interface 700 in Figure 11 includes: a barcode scanner connection parameter display area 1101 and a debugging log information display area 1102; the display interface 700 in Figure 12 includes: a weighing instrument connection parameter display area 1201 and a debugging log information display area 1202; the display interface 700 in Figure 13 includes: a Hipot connection parameter display area 1301 and a debugging log information display area 1302.

[0204] It should be noted that the parameters displayed in the above-mentioned barcode scanner connection parameter display area 1101, weighing meter 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.

[0205] Correspondingly, some embodiments of the present disclosure further provide a battery cell entry and exit system, as shown in FIG14 , which is a schematic diagram of the composition structure of the battery cell entry and exit system provided in some embodiments of the present disclosure. The entry and exit system 1400 includes: a liquid injection host computer 1401, a controller 1402, and a production execution system 1403, wherein:

[0206] 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 a verification result;

[0207] In response to the verification result indicating that the verification is successful, the liquid injection host computer 1401 obtains the front weighing data of the battery cell;

[0208] 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 within the first weight range;

[0209] In response to the withstand voltage test result meeting the preset withstand voltage requirement, the liquid injection host computer 1401 sends a cell entry signal to the production execution system 1403;

[0210] 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;

[0211] In response to the post-weighing data being in the second weight range, the liquid injection host computer 1401 completes the entry and exit of the battery cell in the liquid injection process.

[0212] In some embodiments of the present disclosure, 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.

[0213] The battery cell entry and exit system provided by the present disclosure is explained below in a specific embodiment.

[0214] After the battery cell enters the relevant workstation corresponding to the liquid injection process, the battery cell entry and exit system will correspondingly perform the following four processes: 1. Scan the code and weigh for entry verification; 2. Hipot entry; 3. Weighing after the network port; 4. Scan the code for exit.

[0215] 15 shows a system for checking in and out of a battery cell. The system is based on a controller 151, a liquid injection host computer 152, a barcode scanner 153, a production execution system 154, and a weighing instrument 155. The system works together to implement barcode scanning and weighing check-in. Specifically, the system includes:

[0216] 1501, start;

[0217] 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 entry code scanning trigger signal from the controller 151;

[0218] 1504. The injection host computer 152 sends a trigger scan command to the scan gun 153 based on the scan trigger signal.

[0219] 1505. The barcode scanner 153 scans the battery cell based on the received trigger barcode scanning command. Here, the corresponding image can be obtained for the barcode scanning and analyzed to obtain the battery cell code;

[0220] 1506. The barcode scanner 153 returns the scanning result, that is, sends the obtained battery cell code to the liquid injection host computer 152;

[0221] 1507. The liquid injection host computer 152 judges the received cell code, that is, 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 to make the controller 151 write 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;

[0222] 1510. The liquid injection host computer 152 writes the obtained cell code into a locally pre-stored database, i.e., inserts the cell code into the database for data recording;

[0223] 1511. After executing the above operations, the liquid injection host computer 152 starts to perform the incoming inspection of the battery cell, that is, the liquid injection host computer sends the corresponding battery cell code to the production execution system 154;

[0224] 1512. The production execution system 154 enters the station to verify whether the battery cell is qualified. Here, if it is not qualified, 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 qualified, a signal can also be sent to the controller 151 to make the controller 151 write the entry code scanning result 2, that is, 1514. Correspondingly, the controller 151 triggers the liquid injection host computer 152 to perform the subsequent pre-weighing operation;

[0225] 1515, the liquid injection host computer 152 triggers a weighing instruction to the weighing instrument 155;

[0226] At 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, i.e., 1517. Here, the liquid injection host computer 152 verifies the weighing data. If it meets certain requirements, such as being within a preset weight range, the weight data can be saved, i.e., executing 1518, and then ending 1519. If it does not meet certain requirements, such as being outside the preset weight range, the liquid injection of the battery cell can be directly terminated.

[0227] Correspondingly, as shown in FIG16 , the cell entry and exit system is based on the cooperation of the controller 151, the injection host computer 152, the withstand voltage tester (Hipot tester) 156 and the production execution system 154 to realize the Hipot entry, which specifically includes:

[0228] 1601, start;

[0229] 1602 and 1603, after the battery cell to be filled enters the Hipot test station, the filling host computer 152 reads the withstand voltage trigger signal from the controller 151 accordingly;

[0230] 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.

[0231] 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;

[0232] 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 an entry signal to the production execution system 154, that is, execute 1609.

[0233] 1610. The production execution system 154 determines whether the received entry signal is correct. If it is incorrect, a signal is sent to the controller 151 to cause the controller 151 to write the entry verification result 1, i.e., 1611. If it is correct, a signal is also sent to the controller 151 to cause the controller 151 to write the entry verification result 2, i.e., 1612. At the same time, the injection host computer 152 is triggered to save the withstand voltage data, entry signal and other data obtained in this process, i.e., execute 1613.

[0234] 1614. After the local data is saved and the local database is updated, the process ends.

[0235] Here, during the Hipot entry, each process performed by the liquid 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 liquid injection host computer 152 in real time.

[0236] Correspondingly, referring to FIG17 , 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:

[0237] 1701, start;

[0238] 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;

[0239] 1704. The liquid injection host computer 152 sends a trigger weighing instruction to the weighing instrument 155 based on the post-weighing trigger signal.

[0240] 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 liquid injection host computer 152;

[0241] 1707. The liquid injection host computer 152 determines whether the acquired weighing data is within the preset weight range, i.e., whether the post-weighing data is qualified. If it is unqualified, a signal needs to be sent to the controller 151 to cause the controller 151 to write post-weighing result 1, thereby recording the post-weighing data. If it is qualified, a signal needs to be sent to the controller 151 to cause the controller 151 to write post-weighing result 2, and correspondingly write the post-weighing data to the local database for storage, thereby updating the local database and tracing the weight data of the battery cell in real time, i.e., executing 1710.

[0242] 1711. End.

[0243] Correspondingly, referring to FIG18 , a system for the entry and exit of a battery cell is shown, in which a controller 151 , a liquid injection host computer 152 , and a barcode scanner 153 work together to implement barcode scanning for exiting the station, which specifically includes:

[0244] 1801, start;

[0245] 1802 and 1803, after the battery cells to be filled enter the rear weighing station, the filling host computer 152 reads the outbound scanning trigger signal from the controller 151 accordingly;

[0246] 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;

[0247] 1805 and 1806, the barcode scanner 153 reads the battery cell code (scanning data) based on the barcode scanning instruction and returns the result to the liquid injection host computer 152;

[0248] 1807. The injection host computer 152 determines whether the acquired scanned data is reasonable. If it is not reasonable, a signal is sent to the controller 151 to cause the controller 151 to write scanned result 1, thereby recording the scanned data. If it is acceptable, a signal is also sent to the controller 151 to cause the controller 151 to write scanned result 2, and the scanned data is correspondingly written into the local database for storage, thereby updating the local database, i.e., executing 1810.

[0249] 1811. End.

[0250] It should be noted that, in the above-mentioned multiple processes, the liquid 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 liquid injection host computer in real time.

[0251] 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 cells in the above embodiment, which will not be repeated here.

[0252] It should be understood that “one embodiment” or “an embodiment” mentioned throughout the specification means that specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present disclosure. Therefore, “in one embodiment” or “in an embodiment” appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in the various embodiments of the present disclosure, the size of the serial numbers of the above-mentioned steps / processes does not mean the order of execution, and the execution order of each step / process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present disclosure. The serial numbers of the embodiments of the present disclosure are for description only and do not represent the advantages and disadvantages of the embodiments.

[0253] The present disclosure uses descriptions of directions or positional relationships indicated by “upper”, “lower”, “top”, “bottom”, “front”, “back”, “inside” and “outside”, etc., which are only for the convenience of describing the present disclosure, and do not indicate or imply that the device referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, it should not be understood as limiting the scope of protection of the present disclosure.

[0254] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this disclosure depending on the specific circumstances.

[0255] It should be noted that, in this disclosure, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0256] In the several embodiments provided in the present disclosure, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0257] The units described above as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; they may be located in one place or distributed across multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment. In addition, the functional units in the various embodiments of the present disclosure may all be integrated into one processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0258] The above are merely embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or replacements that can be easily conceived by any technician familiar with this technical field within the technical scope disclosed in this disclosure should be covered by the protection scope of the present disclosure.

Claims

1. A method for entering and exiting a battery cell, applied to a liquid injection host computer, comprising: In response to the battery cell to be filled 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 a verification result; In response to the verification result being a successful verification, obtaining 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 the testing 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 battery cell entry signal is successful, continue 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; 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, wherein: In response to the battery cell to be injected arriving at the front weighing station, sending the battery cell code of the battery cell to the production execution system for verification, and obtaining 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 cell code is sent to the production execution system so that the production execution system verifies the cell code and obtains the verification result.

3. The method for entering and exiting a station according to claim 2, wherein: The cell code is sent to the production execution system so that the production execution system verifies the cell code. Before obtaining the verification result, the 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, wherein: The entry and exit method further includes: In response to the verification result being a successful verification, sending the cell code to the controller to receive the 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, wherein: 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 successful, based on the front weighing signal sent by the controller, controlling the front weighing mechanism disposed on the front weighing station 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 testing 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 control 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, wherein: The battery cell is the first battery cell to enter 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 inspection using standard weights to obtain the front weighing mechanism having first-piece inspection data that meets a preset error range.

7. The method for entering and exiting a station according to any one of claims 1 to 6, wherein: In response to the production execution system successfully 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, the liquid filling mechanism deployed at the liquid filling station is controlled to fill the battery cell with liquid, so as to complete the liquid filling of the battery cell; In response to the completion of cell filling and the transport of the cell to the post-weighing station, based on the post-weighing signal sent by the controller, the post-weighing mechanism deployed on the post-weighing station is controlled to post-weigh the cell to obtain the post-weighing data.

8. The method for entering and exiting a station according to claim 7, wherein: 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 inspection of the rear weighing mechanism is performed using standard weights to obtain the rear weighing mechanism whose first piece inspection data meets a preset error range.

9. The method for entering and exiting a station according to any one of claims 1 to 8, wherein: The entry and exit methods include: 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; 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 any one of claims 7 to 9, wherein: The entry and exit method further 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 10, wherein: The injection host computer includes an entry and exit display interface, which 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 successful, 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 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 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, comprising: Liquid injection host computer, controller and production execution system, including: In response to the battery cell to be injected arriving at the front weighing station, the liquid injection host computer sends the battery cell code of the battery cell to the production execution system for verification to obtain a 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 within the first weight range; In response to the withstand voltage test result meeting the preset withstand voltage requirement, the liquid injection host computer sends a cell entry signal to the production execution system; The liquid injection host computer responds to the production execution system to verify that the battery cell entry signal is successful, and under the action of the controller, 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; In response to the post-weighing data being in the second weight range, the liquid injection host computer completes the entry and exit of the battery cell in the liquid injection process.

13. The entry and exit system according to claim 12, wherein: In response to the battery cell arriving at the front weighing station, the liquid injection host computer controls the scanning mechanism to scan the battery cell based on the front scanning signal sent by the controller to obtain the battery cell code of the battery cell; The liquid injection host computer sends 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.

14. The entry and exit system according to claim 13, wherein: The liquid injection host computer verifies the liquid injection qualification of the battery cell code and obtains a verification result; In response to the verification result indicating that the verification is successful, the liquid injection host computer sends 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.

15. The entry and exit system according to claim 14, wherein: In response to the verification result being successful, the liquid injection host computer sends the cell code to the controller to receive the cell data code sent by the controller that matches the cell code; The liquid injection host computer encodes the battery cell data and writes the encoded data into a preset battery cell database to update the preset battery cell database.

16. The entry and exit system according to any one of claims 12 to 15, wherein: The injection host computer responds to the verification result that the verification is successful, based on the previous weighing signal sent by the controller, controls the The front weighing mechanism on the front weighing station weighs the battery cell to obtain the front weighing data; In response to the previous weighing data being within the first weight range, the liquid injection host computer transports the battery cell to the testing station under the action of the controller; The liquid injection host computer controls the test mechanism deployed on the test station based on the test signal sent by the controller to perform a withstand voltage test on the battery cell to obtain the withstand voltage test result.

17. The entry and exit system according to claim 16, wherein: The liquid injection host computer uses 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.

18. The entry and exit system according to any one of claims 12 to 17, wherein: The liquid injection host computer controls the liquid injection mechanism deployed at the liquid injection station in response to the verification by the production execution system that the battery cell entry signal is successful and the battery cell is transported to the liquid injection station, based on the liquid injection signal sent by the controller, to inject liquid into the battery cell, thereby completing the liquid injection of the battery cell; In response to the completion of cell filling and the transport of the cell to the post-weighing station, the liquid injection host computer controls the post-weighing mechanism deployed on the post-weighing station based on the post-weighing signal sent by the controller, and performs post-weighing on the cell to obtain the post-weighing data.

19. The entry and exit system according to claim 18, wherein: The battery cell is the first battery cell to enter the post-weighing station in the current shift; The liquid injection host computer uses 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.

20. The entry and exit system according to any one of claims 12 to 19, wherein: The liquid injection host computer writes the pre-weighing data, the post-weighing data, the weight difference and the withstand voltage test result into a preset cell database in response to the cell data encoding based on the cell code matching, so as to update the preset cell database; The weight difference is the difference between the post-weighing data and the pre-weighing data.

Images