Electrolyte injection system and electrolyte injection method

Abstract

An electrolyte injection system (100) and an electrolyte injection method. The electrolyte injection system (100) comprises an electrolyte injection device (110), an upper computer (120), and a control device (130). The electrolyte injection device (110) is used for injecting an electrolyte into a battery cell in a battery cell electrolyte injection process. The upper computer (120) is used for: acquiring electrolyte injection data of the battery cell after battery cell electrolyte injection is completed, and locally recording the electrolyte injection data of the battery cell as historical electrolyte injection data; determining a first battery cell set placed in a battery cell tray that currently enters the electrolyte injection device (110); on the basis of the local historical electrolyte injection data, determining from among the first battery cell set a second battery cell set, electrolyte injection of which has not been completed; determining from among the second battery cell set a target battery cell set to be subjected to electrolyte injection; and sending to the control device (130) the position of each target battery cell in the target battery cell set in the battery cell tray. The control device (130) is used for controlling the electrolyte injection device (110) to perform electrolyte injection on the target battery cell set on the basis of the position corresponding to each target battery cell.

Description

Liquid injection system and liquid injection method

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure is based on Chinese patent application number 202410195263.6, application date February 22, 2024, and invention name “Injection system and injection method”, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into this disclosure as a reference. Technical Field

[0003] The present disclosure relates to, but is not limited to, the field of battery production technology, and in particular to a liquid injection system and a liquid injection method. Background Art

[0004] During the battery production process, the battery cells are filled with liquid through a liquid filling system. However, in related art liquid filling systems, it is usually impossible to determine whether the battery cells have been filled before they leave the station. This can lead to repeated liquid filling and spraying, affecting product quality and production efficiency, and causing material waste.

[0005] Summary of the Invention

[0006] In view of this, the embodiments of the present disclosure provide at least one liquid injection system and liquid injection method, which can effectively reduce the repeated liquid injection of battery cells, thereby improving product quality and production efficiency, reducing material waste, and saving production costs.

[0007] The technical solution of the embodiment of the present disclosure is implemented as follows:

[0008] The present disclosure provides a liquid injection system, comprising:

[0009] Liquid injection equipment, host computer and control equipment; among them,

[0010] The liquid injection equipment is used to inject liquid into the battery cell during the battery cell liquid injection process;

[0011] The host computer is used to collect the injection data of the battery cell after the battery cell injection is completed, and record the injection data of the battery cell as historical injection data locally;

[0012] The host computer is further configured to determine a first set of battery cells currently placed in a battery cell tray entering the liquid injection device; determine a second set of battery cells that have not yet completed liquid injection from the first set of battery cells based on local historical liquid injection data; determine a target set of battery cells to be injected from the second set of battery cells; and send the position of each target battery cell in the target set of battery cells in the battery cell tray to the control device;

[0013] The control device is used to control the liquid injection device to inject liquid into the target battery cell set based on the position corresponding to each target battery cell.

[0014] In the injection system of the embodiment of the present disclosure, on the one hand, after the battery cell injection is completed, the host computer collects and records the injection data of the battery cell locally; on the other hand, based on the local historical injection data, the host computer determines the second battery cell set that has not completed the injection from the first battery cell set placed in the battery cell tray currently entering the injection device, and determines the target battery cell set to be injected from the second battery cell set, and then sends the position of each target battery cell in the target battery cell set in the battery cell tray to the control device, so that the control device controls the injection device to inject the target battery cell set based on the corresponding position of each target battery cell. In this way, regardless of whether the battery cell has left the station, it can be determined whether the battery cell has completed the injection based on the historical injection data recorded locally by the host computer, thereby effectively reducing the situation of repeated injection of the battery cell, improving product quality and production efficiency, and reducing material waste and saving production costs. In addition, since the battery cell filling is completed, the battery cell filling data is collected and recorded locally by the host computer, the battery cell can quickly and reliably obtain the battery cell filling data from the host computer before arriving at the unloading area and preparing to leave the station, without relying on the data transmission between the control equipment of the filling station and the control equipment of the unloading area. Therefore, there is no need to consider whether there are other logistics lines between the filling station and the unloading area, and it can adapt to more filling scenarios.

[0015] In some embodiments, the historical injection data includes injection data corresponding to at least one battery cell that has completed injection; the control device is used to obtain the injection data of the battery cell during the battery cell injection process, and after determining that the injection device has completed the injection of the battery cell, send a data acquisition signal to the host computer; the host computer is used to respond to receiving the data acquisition signal, obtain the injection data of the battery cell from the control device based on the position of the battery cell in the battery cell tray, and record the injection data of the battery cell locally.

[0016] In this way, after the control device determines that the injection device has completed the injection of the battery cell, it can control the host computer to timely collect and record the injection data of the battery cell by sending a data acquisition signal to the host computer, reducing the probability of injection data loss due to abnormal conditions such as power failure of the control device, and improving the reliability of injection data acquisition and the stability of the injection system operation.

[0017] In some embodiments, the host computer has a first display interface, which includes a data deletion area; the host computer is used to obtain the tray identification and / or battery cell identification to be deleted in response to receiving a liquid injection data deletion operation performed in the data deletion area, and determine and delete the liquid injection data corresponding to at least one battery cell based on the tray identification and / or battery cell identification to be deleted.

[0018] In this way, the operator can delete the injection data corresponding to a specific pallet identification and / or battery cell identification by performing the injection data deletion operation in the data deletion area, thereby reducing the problem that the battery cells that have not actually completed the injection are mistakenly recorded with the corresponding injection data under abnormal circumstances, resulting in the inability to inject liquid.

[0019] In some embodiments, the host computer is configured to obtain a tray identification of the battery cell tray, and based on the tray identification, obtain the first battery cell set placed in the battery cell tray from a production execution system.

[0020] In this way, the first battery cell set can be quickly and accurately acquired from the production execution system according to the tray identification of the battery cell tray.

[0021] In some embodiments, the control device is used to send an identification acquisition signal to the host computer in response to detecting that the battery cell tray enters the liquid injection device; the host computer is used to obtain a first switch state in response to receiving the identification acquisition signal, and obtain the tray identification of the battery cell tray based on the first switch state; wherein, the first switch state indicates whether the identification input function is turned on.

[0022] In this way, the tray identification of the battery tray can be flexibly obtained according to the on / off status of the identification input function, thereby better meeting the needs of actual production scenarios.

[0023] In some embodiments, the host computer has a second display interface, which includes an identification input area; the host computer is used to obtain the input pallet identification in response to receiving a pallet identification input operation performed in the identification input area when the first switch state is the first state; the first state indicates that the identification input function is turned on.

[0024] In this way, by turning on the identification input function, operators can be supported to manually enter pallet identification in the identification input area, thereby better meeting the needs of actual production scenarios.

[0025] In some embodiments, the liquid injection system also includes a code scanning device; the host computer is used to send a code scanning instruction to the code scanning device when the first switch state is the second state; the code scanning device is used to scan the battery cell tray in response to the code scanning instruction, obtain a code scanning result, and return the code scanning result to the host computer; the host computer is used to determine the tray identification based on the code scanning result; the second state indicates that the identification input function is turned off.

[0026] In this way, when the identification input function is turned off, the scanning device can be automatically enabled to scan the battery tray, and the tray identification can be determined based on the scanning results of the scanning device, thereby improving the degree of automation in the filling process and improving production efficiency.

[0027] In some embodiments, the host computer is used to obtain the pallet identification obtained by scanning from the scanning result when the scanning result indicates that the pallet scanning is normal; or, the host computer is used to output a first prompt message when the scanning result indicates that the pallet scanning is abnormal, and the first prompt message is used to prompt whether to enable the identification input function.

[0028] In this way, on the one hand, when the code scanning result indicates that the pallet code scanning is normal, obtaining the pallet identification obtained by scanning from the code scanning result can make the obtained pallet identification more accurate; on the other hand, when the code scanning result indicates that the pallet code scanning is abnormal, outputting the first prompt information to prompt the operator whether to turn on the identification input function can reduce the situation where the battery cell filling process is wrong due to abnormal pallet code scanning, and enable the operator to discover the abnormality in time, thereby improving the stability of the filling system operation.

[0029] In some embodiments, the host computer includes a third display interface, and the third display interface includes a first function configuration area; the host computer is used to set the first switch state to the first state representing that the identification input function is turned on in response to receiving an operation to turn on the identification input function performed in the first function configuration area; or, the host computer is used to set the first switch state to the second state representing that the identification input function is turned off in response to receiving an operation to turn off the identification input function performed in the first function configuration area.

[0030] In this way, the identification input function can be flexibly turned on or off in the first function configuration area, thereby adapting to different application scenarios to better meet actual production needs.

[0031] In some embodiments, the host computer is configured to obtain a second switch state, and determine the target battery cell set from the second battery cell set based on the second switch state; the second switch state indicates whether an abnormality ignoring function is enabled.

[0032] In this way, the target battery cell set to be injected can be flexibly determined from the second battery cell set according to the activation state of the abnormality ignoring function, thereby better meeting the needs of actual production scenarios.

[0033] In some embodiments, the host computer is configured to determine the second battery cell set as the target battery cell set when the second switch state is a third state; wherein the third state indicates that an abnormality ignoring function is enabled.

[0034] In this way, by turning on the abnormality ignoring function, it is possible to support the injection of liquid into battery cells with abnormalities, thereby better meeting the needs of actual production scenarios.

[0035] In some embodiments, the host computer is used to send a liquid injection entry request for the second battery cell set to the production execution system, obtain an entry request result, and when the second switch state is the fourth state, based on the entry request result, determine at least one battery cell in the second battery cell set with an entry abnormality, and remove the at least one battery cell with an entry abnormality from the second battery cell set to obtain the target battery cell set; wherein, the fourth state indicates that the abnormality ignoring function is turned off.

[0036] In this way, when the abnormality ignoring function is turned off, at least one battery cell with an entry abnormality in the second battery cell set can be removed from the second battery cell set to obtain a target battery cell set to be injected, thereby improving the accuracy of battery cell injection in the scenario where the abnormality ignoring function is turned off.

[0037] In some embodiments, the host computer has a fourth display interface, and the fourth display interface includes a second function configuration area; the host computer is used to set the second switch state to a third state representing that the abnormal ignore function is turned on in response to receiving an operation to turn on the abnormal ignore function performed in the second function configuration area; or, the host computer is used to set the second switch state to a fourth state representing that the abnormal ignore function is turned off in response to receiving an operation to turn off the abnormal ignore function performed in the second function configuration area.

[0038] In this way, the exception ignoring function can be flexibly turned on or off in the second function configuration area, thereby adapting to different application scenarios to better meet actual production needs.

[0039] The present disclosure provides a liquid injection method, which is applied to a host computer and includes:

[0040] Determine a first battery cell set placed in a battery cell tray currently entering a liquid filling device;

[0041] Based on the local historical injection data of the host computer, determining a second set of battery cells that have not completed injection from the first set of battery cells; wherein the historical injection data is collected and recorded locally by the host computer after the battery cells are injected;

[0042] determining a target battery cell set to be injected from the second battery cell set;

[0043] The position of each target battery cell in the target battery cell set in the battery cell tray is sent to the control device, so that the control device controls the liquid injection device to inject liquid into the target battery cell set based on the position corresponding to each target battery cell.

[0044] In the liquid injection method of the embodiment of the present disclosure, on the one hand, after the liquid injection of the battery cell is completed, the host computer collects and records the liquid injection data of the battery cell locally; on the other hand, based on the local historical liquid injection data, the host computer determines the second set of battery cells that have not completed the liquid injection from the first set of battery cells placed in the battery tray currently entering the liquid injection device, and determines the target battery cell set to be injected from the second set of battery cells, and then sends the position of each target battery cell in the target battery cell set in the battery tray to the control device, so that the control device controls the liquid injection device to inject the target battery cell set based on the corresponding position of each target battery cell. In this way, regardless of whether the battery cell has left the station, it can be determined whether the battery cell has completed the liquid injection based on the historical liquid injection data recorded locally by the host computer, thereby effectively reducing the situation of repeated liquid injection of the battery cell, improving product quality and production efficiency, and reducing material waste and saving production costs. In addition, since the battery cell filling is completed, the battery cell filling data is collected and recorded locally by the host computer, the battery cell can quickly and reliably obtain the battery cell filling data from the host computer before arriving at the unloading area and preparing to leave the station, without relying on the data transmission between the control equipment of the filling station and the control equipment of the unloading area. Therefore, there is no need to consider whether there are other logistics lines between the filling station and the unloading area, and it can adapt to more filling scenarios.

[0045] In some embodiments, the historical injection data includes injection data corresponding to at least one battery cell that has completed injection; before determining the second battery cell set that has not completed injection from the first battery cell set based on the local historical injection data of the host computer, the method also includes: in response to receiving a data acquisition signal sent by the control device, based on the position of the battery cell in the battery cell tray, obtaining the injection data of the battery cell from the control device; wherein the injection data of the battery cell is obtained by the control device during the battery cell injection process, and the data acquisition signal is sent to the host computer by the control device after determining that the injection device has completed the injection of the battery cell; the injection data of the battery cell is recorded locally.

[0046] In this way, after the control device determines that the injection device has completed the injection of the battery cell, it can control the host computer to timely collect and record the injection data of the battery cell by sending a data acquisition signal to the host computer, reducing the probability of injection data loss due to abnormal conditions such as power failure of the control device, and improving the reliability of injection data acquisition and the stability of the injection system operation.

[0047] In some embodiments, the host computer has a first display interface, which includes a data deletion area; the method also includes: in response to receiving a liquid injection data deletion operation performed in the data deletion area, obtaining a tray identifier and / or a battery cell identifier for data deletion; based on the tray identifier and / or battery cell identifier for data deletion, determining and deleting the liquid injection data corresponding to at least one battery cell.

[0048] In this way, the operator can delete the injection data corresponding to a specific pallet identification and / or battery cell identification by performing the injection data deletion operation in the data deletion area, thereby reducing the problem that the battery cells that have not actually completed the injection are mistakenly recorded with the corresponding injection data under abnormal circumstances, resulting in the inability to inject liquid.

[0049] In some embodiments, determining the first set of battery cells placed in the battery cell tray currently entering the liquid filling device includes: obtaining a tray identification of the battery cell tray; and based on the tray identification, obtaining the first set of battery cells placed in the battery cell tray from a production execution system.

[0050] In this way, the first battery cell set can be quickly and accurately acquired from the production execution system according to the tray identification of the battery cell tray.

[0051] In some embodiments, obtaining the tray identification of the battery cell tray includes: obtaining a first switch state in response to receiving an identification acquisition signal sent by the control device, the first switch state representing whether an identification input function is turned on; wherein, the identification acquisition signal is sent by the control device when it detects that the battery cell tray enters the liquid injection device; based on the first switch state, obtaining the tray identification of the battery cell tray.

[0052] In this way, the tray identification of the battery tray can be flexibly obtained according to the on / off status of the identification input function, thereby better meeting the needs of actual production scenarios.

[0053] In some embodiments, the host computer has a second display interface, which includes an identification input area; obtaining the tray identification of the battery tray based on the first switch state includes: when the first switch state is the first state, in response to receiving a tray identification input operation performed in the identification input area, obtaining the input tray identification; the first state indicates that the identification input function is turned on.

[0054] In this way, by turning on the identification input function, operators can be supported to manually enter pallet identification in the identification input area, thereby better meeting the needs of actual production scenarios.

[0055] In some embodiments, the host computer has a second display interface, which includes an identification input area; obtaining the tray identification of the battery cell tray based on the first switch state includes: when the first switch state is the second state, sending a scanning instruction to the scanning device, and determining the tray identification based on the scanning result returned by the scanning device in response to the scanning instruction; the second state indicates that the identification input function is turned off.

[0056] In this way, when the identification input function is turned off, the scanning device can be automatically enabled to scan the battery tray, and the tray identification can be determined based on the scanning results of the scanning device, thereby improving the degree of automation in the filling process and improving production efficiency.

[0057] In some embodiments, the determining of the pallet identification based on the scanning result returned by the scanning device in response to the scanning instruction includes one of the following: when the scanning result indicates that the pallet scanning is normal, obtaining the pallet identification obtained by scanning from the scanning result; when the scanning result indicates that the pallet scanning is abnormal, outputting a first prompt message, the first prompt message being used to prompt whether to enable the identification input function.

[0058] In this way, on the one hand, when the code scanning result indicates that the pallet code scanning is normal, obtaining the pallet identification obtained by scanning from the code scanning result can make the obtained pallet identification more accurate; on the other hand, when the code scanning result indicates that the pallet code scanning is abnormal, outputting the first prompt information to prompt the operator whether to turn on the identification input function can reduce the situation where the battery cell filling process is wrong due to abnormal pallet code scanning, and enable the operator to discover the abnormality in time, thereby improving the stability of the filling system operation.

[0059] In some embodiments, determining the target battery cell set to be injected from the second battery cell set includes: obtaining a second switch state, the second switch state indicating whether an abnormality ignoring function is turned on; and determining the target battery cell set from the second battery cell set based on the second switch state.

[0060] In this way, the target battery cell set to be injected can be flexibly determined from the second battery cell set according to the activation state of the abnormality ignoring function, thereby better meeting the needs of actual production scenarios.

[0061] In some embodiments, determining the target battery cell set from the second battery cell set based on the second switch state includes one of the following:

[0062] When the second switch state is a third state, determining the second battery cell set as the target battery cell set; wherein the third state indicates that an abnormality ignoring function is enabled;

[0063] Send a liquid injection entry request for the second battery cell set to the production execution system to obtain an entry request result; when the second switch state is the fourth state, determine at least one battery cell in the second battery cell set with an entry abnormality based on the entry request result; remove the at least one battery cell with an entry abnormality from the second battery cell set to obtain the target battery cell set; wherein, the fourth state indicates that the abnormality ignoring function is turned off.

[0064] In this way, on the one hand, by turning on the abnormality ignoring function, it is possible to support the injection of abnormal battery cells, thereby better meeting the needs of actual production scenarios. On the other hand, when the abnormality ignoring function is turned off, at least one battery cell with an abnormality in the second battery cell set can be removed from the second battery cell set to obtain the target battery cell set to be injected, thereby improving the accuracy of battery cell injection in the scenario where the abnormality ignoring function is turned off.

[0065] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and are not intended to limit the technical solutions of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] The accompanying drawings herein are incorporated into and constitute a part of the specification. These drawings illustrate embodiments consistent with the present disclosure and, together with the specification, are used to explain the technical solutions of the present disclosure.

[0067] FIG1 is a schematic diagram of the structure of a liquid injection system according to an embodiment of the present disclosure;

[0068] FIG2 is a schematic diagram of a first display interface provided by an embodiment of the present disclosure;

[0069] FIG3 is a schematic diagram of a second display interface provided by an embodiment of the present disclosure;

[0070] FIG4 is a second schematic diagram of the structure of a liquid injection system provided in an embodiment of the present disclosure;

[0071] FIG5 is a schematic diagram of a third display interface provided by an embodiment of the present disclosure;

[0072] FIG6 is a schematic diagram of a fourth display interface provided by an embodiment of the present disclosure;

[0073] FIG7 is a schematic diagram of a flow chart of an implementation of a liquid injection method provided in an embodiment of the present disclosure;

[0074] FIG8 is a schematic diagram of an implementation of a two-injection liquid injection data collection process provided by an embodiment of the present disclosure;

[0075] FIG9 is a schematic diagram illustrating an implementation process of a pallet code scanning entry process provided by an embodiment of the present disclosure;

[0076] FIG10 is a schematic diagram illustrating an implementation of obtaining a tray identification in a liquid injection method provided by an embodiment of the present disclosure;

[0077] FIG11 is a schematic diagram illustrating an implementation of determining a target set of battery cells to be injected in an injection method provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0078] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the technical solutions of the present disclosure are further elaborated in detail below with reference to the accompanying drawings and embodiments. The described embodiments should not be regarded as limiting the present disclosure. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0079] In the following description, reference is made to “some embodiments”, which describes a subset of all possible embodiments, but it will 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.

[0080] The terms "first / second / third" involved are merely used to distinguish similar objects and do not represent a specific ordering of the objects. It is understandable that "first / second / third" can be interchanged with a specific order or sequence where permitted so that the embodiments of the present disclosure described herein can be implemented in an order other than that illustrated or described herein.

[0081] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present disclosure pertains. The terms used herein are for the purpose of describing the present disclosure only and are not intended to limit the present disclosure.

[0082] The following describes the embodiments of the present disclosure in detail.

[0083] Currently, new energy batteries are increasingly being used in everyday life and industry. They are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but are also widely used in electric vehicles like electric bicycles, electric motorcycles, and electric cars, as well as in a variety of fields such as aerospace. As the application of power batteries continues to expand, market demand is also growing.

[0084] In the embodiment of the present disclosure, the battery cell may be a battery cell. A battery cell refers to a basic unit that can realize the mutual conversion between chemical energy and electrical energy, and can be used to make a battery module or battery pack, thereby being used to supply power to an electrical device. The 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 embodiment of the present disclosure is not limited to this. 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 mixed connection through a busbar component.

[0085] In the related art liquid filling system, it is usually impossible to determine whether the battery cell has been filled before it leaves the station. In the scenario where the battery cell is filled using a tray-type liquid filling method, the battery tray containing the battery cells is usually a mechanism for recycling and reuse, and the same battery tray will be used multiple times a day. If the battery cell in the battery tray that has been filled is not properly removed, it may re-enter the liquid filling equipment with the battery tray for repeated filling, resulting in liquid spray problems, affecting product quality and production efficiency, and causing material waste.

[0086] In addition, when the battery cell is finished filling and ready to be shipped out, a request for liquid filling outbound can be sent to the Manufacturing Execution System (MES) to upload the liquid filling data of the battery cell to the MES system, so as to facilitate the subsequent traceability of production data. In the related art, after the control equipment of the liquid filling station collects the liquid filling data of the battery cell, the liquid filling data can be transferred to the control equipment of the unloading area, thereby facilitating the upload of the liquid filling data in the battery cell outbound process. However, for some liquid filling scenarios (such as tray-type liquid filling scenarios, etc.), there may be other logistics lines from different suppliers between the liquid filling station and the unloading area, making it impossible to transfer data between the control equipment of the liquid filling station and the control equipment of the unloading area, resulting in the inability to upload the battery cell liquid filling data during the battery cell outbound process.

[0087] In view of this, an embodiment of the present disclosure provides a liquid injection system. As shown in FIG1 , the liquid injection system 100 includes a liquid injection device 110 , a host computer 120 , and a control device 130 ; wherein:

[0088] The liquid injection device 110 is used to inject liquid into the battery cell during the battery cell injection process;

[0089] The host computer 120 is used to collect the injection data of the battery cell after the battery cell injection is completed, and record the injection data of the battery cell as historical injection data locally;

[0090] The host computer 120 is further configured to determine a first set of cells placed in a cell tray currently entering the liquid injection device 110; determine a second set of cells that have not yet been injected from the first set of cells based on local historical liquid injection data; determine a target set of cells to be injected from the second set of cells; and send the position of each target cell in the target set of cells in the cell tray to the control device 130;

[0091] The control device 130 is used to control the liquid injection device 110 to inject liquid into the target battery cell set based on the corresponding position of each target battery cell.

[0092] It is understandable that the liquid injection system 100 can be applied to, but is not limited to, the first liquid injection process, the second liquid injection process and / or the liquid replenishment process of the battery cell.

[0093] In some embodiments, the liquid injection device 110 can use a tray-type liquid injection method to inject liquid into the battery cells. During implementation, the battery cells to be injected can be loaded onto a battery tray and brought into the liquid injection device 110. The at least one liquid injection pump in the liquid injection device 110 then injects liquid into the battery cells placed at at least one position in the battery tray. During implementation, the liquid injection device 110 can be located at a liquid injection station in a liquid injection station.

[0094] The host computer 120 can be used to control the injection process. During implementation, the host computer 120 can be at least one of a server, a laptop, a tablet computer, a desktop computer, a smart phone, etc.

[0095] After the battery cell is injected, the host computer 120 can directly collect the injection data of the battery cell from the injection equipment based on the position of the battery cell in the tray, or collect the injection data of the battery cell from the control equipment of the injection station based on the position of the battery cell in the tray.

[0096] After all the cells in the cell tray are filled with liquid, the host computer 120 can collect and record the liquid injection data of each cell locally based on the position of each cell in the cell tray. After a cell in the cell tray is filled with liquid, the host computer 120 can also collect and record the liquid injection data of the cell locally based on the position of the cell in the tray immediately after the liquid injection of the cell is completed, without waiting for all the cells in the cell set to be filled with liquid. The liquid injection data of the cell may include the liquid injection process data of the cell, for example, at least one of the liquid injection amount, liquid injection time, liquid injection amount, and weighing result before liquid injection.

[0097] When determining that a cell tray has entered the liquid injection device 110, the host computer 120 can use any suitable method to determine the first cell set placed in the cell tray, which is not limited in the present embodiment. In practice, each cell in the first cell set can be identified by a cell barcode or by the cell's position in the cell tray.

[0098] In some embodiments, the battery cell sets placed in at least one battery cell tray on the logistics line can be pre-stored in the host computer 120 locally and / or in the production execution system; the host computer 120 can query the first battery cell set placed in the battery cell tray from the host computer locally and / or the production execution system based on the tray identification of the battery cell tray currently entering the liquid injection equipment.

[0099] In some embodiments, the host computer 120 may use a barcode scanning device to scan the battery cells placed in the battery cell tray currently entering the liquid injection device to obtain a first battery cell set placed in the battery cell tray.

[0100] After determining the first battery cell set, the host computer 120 can determine whether each battery cell in the first battery cell set has completed the injection by querying the local historical injection data, thereby determining the second battery cell set that has not completed the injection. In some embodiments, the host computer 120 can record the injection data of the battery cell locally on the host computer 120 using the battery cell identification of the battery cell as an index; the host computer 120 can search for the injection data of each battery cell in the first battery cell set locally based on the battery cell identification of the battery cell, and determine that the battery cell has completed the injection if the injection data of the battery cell is found, and determine that the battery cell has not completed the injection if the injection data of the battery cell is not found. The battery cell identification may include but is not limited to at least one of the battery cell barcode, the tray code of the battery cell tray carrying the battery cell, and the position of the battery cell in the battery cell tray.

[0101] In some embodiments, the host computer 120 may determine each battery cell in the second battery cell set as a target battery cell to be injected with liquid, that is, directly use the second battery cell set as the target battery cell set.

[0102] In some embodiments, the host computer 120 can send a battery cell entry request to the production execution system based on the second battery cell set, and receive the entry request result returned by the production execution system in response to the battery cell entry request; based on the entry request result, the host computer 120 can determine at least one battery cell in the second battery cell set that has an entry abnormality; the host computer 120 can remove each battery cell in the second battery cell set that has an entry abnormality to obtain a target battery cell set.

[0103] The control device 130 can be used to control the operation of various mechanisms in the liquid injection station. In practice, the control device 130 can be, for example, an industrial computer, a programmable logic controller (PLC), etc. For example, the control device 130 can be a PLC used to control the operation of the liquid injection device 110.

[0104] In the injection system of the embodiment of the present disclosure, on the one hand, after the battery cell injection is completed, the host computer collects and records the injection data of the battery cell locally; on the other hand, based on the local historical injection data, the host computer determines the second battery cell set that has not completed the injection from the first battery cell set placed in the battery cell tray currently entering the injection device, and determines the target battery cell set to be injected from the second battery cell set, and then sends the position of each target battery cell in the target battery cell set in the battery cell tray to the control device, so that the control device controls the injection device to inject the target battery cell set based on the corresponding position of each target battery cell. In this way, regardless of whether the battery cell has left the station, it can be determined whether the battery cell has completed the injection based on the historical injection data recorded locally by the host computer, thereby effectively reducing the situation of repeated injection of the battery cell, improving product quality and production efficiency, and reducing material waste and saving production costs. In addition, since the battery cell filling is completed, the battery cell filling data is collected and recorded locally by the host computer, the battery cell can quickly and reliably obtain the battery cell filling data from the host computer before arriving at the unloading area and preparing to leave the station, without relying on the data transmission between the control equipment of the filling station and the control equipment of the unloading area. Therefore, there is no need to consider whether there are other logistics lines between the filling station and the unloading area, and it can adapt to more filling scenarios.

[0105] In some embodiments, the historical injection data includes injection data corresponding to at least one battery cell that has completed injection;

[0106] The control device 130 is used to obtain the injection data of the battery cell during the battery cell injection process and send a data acquisition signal to the host computer 120 after determining that the injection device 110 has completed the injection of the battery cell;

[0107] The host computer 120 is configured to obtain the liquid injection data of the battery cell from the control device 130 in response to receiving the data acquisition signal based on the position of the battery cell in the battery cell tray, and record the liquid injection data of the battery cell locally.

[0108] In some embodiments, the control device 130 can obtain the injection data of the battery cell during the battery cell injection process and store the injection data of the battery cell using the position of the battery cell in the battery cell tray as an index. After receiving the data acquisition signal, the host computer 120 can obtain the injection data of the battery cell corresponding to the position of the battery cell in the battery cell tray from the control device 130 based on the position of the battery cell.

[0109] In some embodiments, the control device 130 can obtain the injection data of the battery cell during the battery cell injection process and store the injection data of the battery cell using the battery cell identifier of the battery cell as an index. The host computer 120 can pre-store the correspondence between the position of each battery cell placed in the battery cell tray and the battery cell identifier. When receiving the data acquisition signal, the host computer 120 can query the correspondence based on the position of the battery cell in the tray to obtain the battery cell identifier of the battery cell, and obtain the injection data of the battery cell corresponding to the battery cell identifier from the control device 130.

[0110] In the above embodiment, after the control device determines that the injection device has completed the injection of the battery cell, it can control the host computer to timely collect and record the injection data of the battery cell by sending a data acquisition signal to the host computer, thereby reducing the probability of injection data loss due to abnormal conditions such as power failure of the control device, and improving the reliability of injection data acquisition and the stability of the injection system operation.

[0111] In some embodiments, the host computer 120 has a first display interface, the first display interface including a data deletion area. The host computer 120 is configured to, in response to receiving a liquid filling data deletion operation performed in the data deletion area, obtain a tray identifier and / or a battery cell identifier for which data is to be deleted, and determine and locally delete the liquid filling data corresponding to at least one battery cell based on the tray identifier and / or battery cell identifier for which data is to be deleted.

[0112] Here, the tray identifier for data to be deleted may be the tray identifier of the battery tray to which the battery cell whose injection data is to be deleted belongs. The battery cell identifier for data to be deleted may be the battery cell identifier of the battery cell whose injection data is to be deleted.

[0113] In some embodiments, the injection data deletion operation performed in the data deletion area may be an operation to delete the injection data of all battery cells in a battery cell tray. In response to the injection data deletion operation, the host computer 120 may obtain the tray identifier of the battery cell tray to be deleted, identify at least one battery cell in the battery cell tray based on the tray identifier, and delete the injection data corresponding to the at least one battery cell from the host computer 120 locally.

[0114] In some embodiments, the injection data deletion operation performed in the data deletion area may be an operation to delete the injection data of a certain battery cell, and the battery cell identification may include the battery cell barcode of the battery cell. In response to the injection data deletion operation, the host computer 120 may obtain the battery cell barcode of the battery cell to be deleted and, based on the battery cell barcode, delete the injection data of the battery cell from the host computer 120 locally.

[0115] In some embodiments, the injection data deletion operation performed in the data deletion area may be an operation to delete the injection data of a battery cell located at a certain position in a certain battery cell tray, and the battery cell identifier may include the position of the battery cell in the battery cell tray. In response to the injection data deletion operation, the host computer 120 may obtain the tray identifier of the battery cell tray where the battery cell to be deleted is located, as well as the position of the battery cell in the battery cell tray, and based on the tray identifier and the position, determine and delete the injection data of the battery cell locally from the host computer 120.

[0116] During implementation, the interface layout of the data deletion area and the operation method of the injection data deletion operation can be determined by those skilled in the art according to actual conditions, and the embodiments of the present disclosure are not limited thereto.

[0117] In some embodiments, the data deletion area may include a battery cell list, which may include at least one battery cell for which injection data is locally recorded on the host computer 120. Each battery cell in the battery cell list may correspond to a data deletion control. The injection data deletion operation may include triggering the data deletion control corresponding to at least one battery cell. An operator can delete the injection data for a battery cell from the host computer 120 by triggering the data deletion control corresponding to the battery cell in the data deletion area.

[0118] In some embodiments, the data deletion area may include a pallet identification input control and / or a cell identification input control, and the operator can input the pallet identification through the pallet identification input control and / or the cell identification through the cell identification input control to trigger the injection data deletion operation.

[0119] For example, referring to FIG2 , the first display interface 210 may include a data deletion area 211, which may include a tray identifier input control 211a, a tray data deletion control 211b, a cell identifier input control 211c, and a cell data deletion control 211d. An operator may use the tray identifier input control 211a to input the identifier of the tray to be deleted and trigger the tray data deletion control 211b to delete the injection data. In response to the injection data deletion operation, the host computer may identify at least one cell in the cell tray based on the tray identifier and delete the injection data corresponding to the at least one cell from the host computer. The operator can use the cell identification input control 211c to input the cell identification of the cell to be deleted, and perform the injection data deletion operation by triggering the cell data deletion control 211d. The upper computer can respond to the injection data deletion operation, obtain the input cell barcode, and based on the cell barcode, determine the cell to be deleted, and delete the injection data of the cell from the upper computer locally.

[0120] In this way, the operator can delete the injection data corresponding to a specific pallet identification and / or battery cell identification by performing the injection data deletion operation in the data deletion area, thereby reducing the problem that the battery cells that have not actually completed the injection are mistakenly recorded with the corresponding injection data under abnormal circumstances, resulting in the inability to inject liquid.

[0121] In some embodiments, the host computer 120 is configured to obtain a tray identifier of the battery cell tray, and based on the tray identifier, obtain a first battery cell set placed in the battery cell tray from a production execution system.

[0122] Here, the production execution system can record in advance the battery cells placed in each battery tray on the logistics line, and the host computer 120 can obtain the first battery cell set placed in the battery tray from the production execution system through the tray identifier of the battery tray currently entering the liquid injection equipment 110.

[0123] During implementation, the host computer 120 may obtain the tray identification of the battery tray using any suitable method, and the presently disclosed embodiments are not limited thereto. For example, the host computer 120 may control a barcode scanning device to scan the battery tray currently entering the injection device 110 to obtain the tray identification of the battery tray. In another example, the host computer 120 may obtain the tray identification of the input battery tray in response to a tray identification input operation performed on a display interface.

[0124] In this way, the first battery cell set can be quickly and accurately acquired from the production execution system according to the tray identification of the battery cell tray.

[0125] In some embodiments, the control device 130 is configured to send an identification acquisition signal to the host computer 120 in response to detecting that the battery cell tray enters the liquid injection device 110;

[0126] The host computer 120 is configured to obtain a first switch state in response to receiving the identification acquisition signal, and obtain a tray identification of the battery tray based on the first switch state; wherein the first switch state indicates whether the identification input function is enabled.

[0127] Here, the control device 130 may send the identification acquisition signal to the host computer 120 in any appropriate manner, and the embodiment of the present disclosure is not limited to this.

[0128] In some embodiments, a trigger point for identification acquisition can be pre-set in the control device 130. Upon detecting that a battery cell tray has entered the liquid injection device 110, the control device 130 can write a preset trigger point value to the identification acquisition trigger point to transmit an identification acquisition signal. The host computer 120 can determine that the identification acquisition signal has been received upon reading the preset trigger point value from the identification acquisition point.

[0129] The identification input function refers to the function of host computer 120 receiving manually input pallet identification. The first switch state indicates whether this identification input function is enabled. In implementation, the first switch state can be pre-set by the operator based on actual conditions, or automatically determined by host computer 120 based on the current production scenario, without limitation here.

[0130] It is understandable that, since the first switch state can be used to indicate whether the identification input function is turned on, the host computer 120 can determine whether to receive the tray identification manually input by the operator based on the first switch state, and thereby obtain the tray identification of the battery cell tray in a corresponding manner. In some embodiments, when the identification input function is turned on, the host computer 120 can obtain the tray identification manually input by the operator. In some embodiments, when the identification input function is turned on, the host computer 120 does not receive the tray identification manually input by the operator, but obtains the tray identification of the battery cell tray currently entering the injection device 110 by other means, for example, automatically obtaining it by scanning a code.

[0131] In the above embodiment, the tray identification of the battery cell tray can be flexibly obtained according to the on / off state of the identification input function, thereby better meeting the needs of actual production scenarios.

[0132] In some embodiments, the host computer 120 has a second display interface, and the second display interface includes an identification input area.

[0133] The host computer 120 is configured to obtain the input pallet identification in response to receiving a pallet identification input operation in the identification input area when the first switch state is the first state; the first state indicates that the identification input function is enabled.

[0134] During implementation, the interface layout of the identification input area and the operation mode of the tray identification input operation may be determined by those skilled in the art according to actual conditions, and the embodiments of the present disclosure are not limited thereto.

[0135] For example, referring to FIG. 3 , the second display interface 220 may include an identification input area 221 , and an operator may perform a pallet identification input operation in the identification input area 221 .

[0136] It is understandable that in actual production scenarios, there may be situations where the host computer cannot automatically obtain the tray identification of the battery cell tray currently entering the liquid injection device 110, for example, when the barcode scanning of the battery cell tray fails, when the identification barcode of the battery cell tray falls off and no barcode can be scanned, etc. According to the embodiments of the present disclosure, by enabling the identification input function, the operator can be supported to manually enter the tray identification in the identification input area, thereby better meeting the needs of actual production scenarios.

[0137] In some embodiments, referring to FIG. 4 , the injection system 100 further includes a code scanning device 140 .

[0138] The host computer 120 is configured to send a code scanning instruction to the code scanning device 140 when the first switch state is the second state;

[0139] The code scanning device 140 is used to scan the battery tray in response to the code scanning instruction, obtain the code scanning result, and return the code scanning result to the host computer 120;

[0140] The host computer 120 is used to determine the pallet identification based on the code scanning result; the second state represents that the identification input function is closed.

[0141] It is understandable that an identification barcode for identifying the battery tray is usually provided on the battery tray. The host computer 120 can send a scanning instruction to the scanning device 140 to control the scanning device 140 to scan the identification barcode at a preset position on the battery tray to obtain a scanning result.

[0142] In the above embodiment, when the identification input function is turned off, the scanning device can be automatically enabled to scan the battery tray, and the tray identification can be determined based on the scanning result of the scanning device, thereby improving the degree of automation in the liquid filling process and improving production efficiency.

[0143] In some embodiments, the host computer 120 is configured to obtain a pallet identifier obtained by scanning the barcode from the scanning result when the barcode scanning result indicates that the pallet is scanned normally;

[0144] Alternatively, the host computer 120 is configured to output a first prompt message when the code scanning result indicates that the pallet code scanning is abnormal, and the first prompt message is used to prompt whether to enable the identification input function.

[0145] It can be understood that normal pallet code scanning means that the pallet identification of the current battery cell pallet is successfully obtained through the code scanning process; abnormal pallet code scanning means that the pallet identification of the current battery cell pallet cannot be successfully obtained through the code scanning process, for example, the identification barcode of the battery cell pallet falls off, the scanning device 140 is abnormal, etc., resulting in the inability to obtain the pallet identification.

[0146] In this way, on the one hand, when the code scanning result indicates that the pallet code scanning is normal, obtaining the pallet identification obtained by scanning from the code scanning result can make the obtained pallet identification more accurate; on the other hand, when the code scanning result indicates that the pallet code scanning is abnormal, outputting the first prompt information to prompt the operator whether to turn on the identification input function can reduce the situation where the battery cell filling process is wrong due to abnormal pallet code scanning, and enable the operator to discover the abnormality in time, thereby improving the stability of the filling system operation.

[0147] In some embodiments, the host computer 120 includes a third display interface, and the third display interface includes a first function configuration area;

[0148] The host computer 120 is configured to, in response to receiving an activation operation of the identification input function in the first function configuration area, set the first switch state to a first state indicating activation of the identification input function;

[0149] Alternatively, the host computer 120 is configured to, in response to receiving a closing operation of the identification input function in the first function configuration area, set the first switch state to a second state indicating that the identification input function is closed.

[0150] During implementation, the interface layout of the first function configuration area and the operation mode of turning on / off the identification input function can be determined by those skilled in the art according to actual conditions, and the embodiments of the present disclosure are not limited thereto.

[0151] For example, referring to FIG. 5 , the third display interface 230 may include a first function configuration area 231 , and the operator may enable or disable the identification input function by triggering a first switch control 231 a in the first function configuration area 231 .

[0152] It should be noted that the third display interface and the second display interface can be implemented as the same display interface, or can be implemented as two different display interfaces.

[0153] In this way, the identification input function can be flexibly turned on or off in the first function configuration area, thereby adapting to different application scenarios to better meet actual production needs.

[0154] In some embodiments, the host computer 120 is configured to obtain a second switch state and determine a target battery cell set from the second battery cell set based on the second switch state; the second switch state indicates whether the abnormality ignoring function is enabled.

[0155] Here, the "abnormal ignore" function refers to the process of injecting liquid into the battery cell tray regardless of whether the battery cell is in an abnormal state. The second switch state indicates whether the abnormal ignore function is enabled. During implementation, the second switch state can be pre-set by the operator based on actual conditions, or automatically determined by the host computer 120 based on the current production scenario, and is not limited here.

[0156] It can be understood that since the second switch state can be used to indicate whether the abnormality ignoring function is turned on, the host computer 120 can determine whether to inject liquid into the battery cell in the abnormal state based on the second switch state, thereby determining the corresponding target battery cell set from the second battery cell set.

[0157] In this way, the target battery cell set to be injected can be flexibly determined from the second battery cell set according to the activation state of the abnormality ignoring function, thereby better meeting the needs of actual production scenarios.

[0158] In some embodiments, the host computer 120 is configured to determine the second battery cell set as the target battery cell set when the second switch state is a third state; wherein the third state indicates that the abnormality ignoring function is enabled.

[0159] In this way, by turning on the abnormality ignoring function, it is possible to support the injection of liquid into battery cells with abnormalities, thereby better meeting the needs of actual production scenarios.

[0160] In some embodiments, the host computer 120 is used to send a liquid injection entry request for the second battery cell set to the production execution system, obtain the entry request result, and when the second switch state is the fourth state, based on the entry request result, determine at least one battery cell with an entry abnormality in the second battery cell set, and remove the at least one battery cell with an entry abnormality from the second battery cell set to obtain the target battery cell set; wherein, the fourth state indicates that the abnormality ignoring function is turned off.

[0161] Here, the production execution system can determine whether each battery cell in the second battery cell set meets the conditions for entering the station for injection based on the injection entry request of the second battery cell set sent by the host computer 120, and return the corresponding entry request result. It can be understood that the entry request result returned by the production execution system can include request result information corresponding to each battery cell in the second battery cell set, and the request result information can indicate whether the corresponding battery cell has entered the station abnormally. If the battery cell meets the conditions for entering the station for injection, the request result information corresponding to the battery cell indicates that the battery cell has entered the station normally; if the battery cell does not meet the conditions for entering the station for injection, the request result information corresponding to the battery cell indicates that the battery cell has entered the station abnormally.

[0162] In this way, when the abnormality ignoring function is turned off, at least one battery cell with an entry abnormality in the second battery cell set can be removed from the second battery cell set to obtain a target battery cell set to be injected, thereby improving the accuracy of battery cell injection in the scenario where the abnormality ignoring function is turned off.

[0163] In some embodiments, the host computer 120 has a fourth display interface, and the fourth display interface includes a second function configuration area;

[0164] The host computer 120 is configured to, in response to receiving an operation to enable the abnormality ignoring function in the second function configuration area, set the second switch state to a third state indicating that the abnormality ignoring function is enabled;

[0165] Alternatively, the host computer 120 is configured to, in response to receiving a turning-off operation of the abnormality ignoring function in the second function configuration area, set the second switch state to a fourth state representing that the abnormality ignoring function is turned off.

[0166] The operator can enable or disable the exception ignore function in the second function configuration area of ​​the fourth display interface. During implementation, the interface layout of the second function configuration area and the operation method for enabling / disabling the exception ignore function can be determined by those skilled in the art based on actual circumstances and are not limited in the present embodiment.

[0167] For example, referring to FIG. 6 , the fourth display interface 240 may include a second function configuration area 241 , and the operator may enable or disable the abnormality ignore function by triggering a second switch control 241 a in the second function configuration area 241 .

[0168] In this way, the exception ignoring function can be flexibly turned on or off in the second function configuration area, thereby adapting to different application scenarios to better meet actual production needs.

[0169] The present disclosure provides a method for liquid injection, which can be executed by a host computer. FIG7 is a schematic diagram of a flow chart of an implementation of a liquid injection method provided by the present disclosure. As shown in FIG7 , the method can include the following steps S101 to S104:

[0170] Step S101 : determining a first battery cell set placed in a battery cell tray currently entering a liquid injection device.

[0171] Step S102 : determining a second set of cells that have not yet been filled from the first set of cells based on the local historical filling data of the host computer; wherein the historical filling data is collected and recorded locally by the host computer after the cell filling is completed.

[0172] Step S103 : determining a target battery cell set to be injected from the second battery cell set.

[0173] Step S104 : sending the position of each target battery cell in the target battery cell set in the battery cell tray to a control device, so that the control device controls the liquid injection device to inject liquid into the target battery cell set based on the position of each target battery cell.

[0174] In the liquid injection method of the embodiment of the present disclosure, on the one hand, after the liquid injection of the battery cell is completed, the host computer collects and records the liquid injection data of the battery cell locally; on the other hand, based on the local historical liquid injection data, the host computer determines the second set of battery cells that have not completed the liquid injection from the first set of battery cells placed in the battery tray currently entering the liquid injection device, and determines the target battery cell set to be injected from the second set of battery cells, and then sends the position of each target battery cell in the target battery cell set in the battery tray to the control device, so that the control device controls the liquid injection device to inject the target battery cell set based on the corresponding position of each target battery cell. In this way, regardless of whether the battery cell has left the station, it can be determined whether the battery cell has completed the liquid injection based on the historical liquid injection data recorded locally by the host computer, thereby effectively reducing the situation of repeated liquid injection of the battery cell, improving product quality and production efficiency, and reducing material waste and saving production costs. In addition, since the battery cell filling is completed, the battery cell filling data is collected and recorded locally by the host computer, the battery cell can quickly and reliably obtain the battery cell filling data from the host computer before arriving at the unloading area and preparing to leave the station, without relying on the data transmission between the control equipment of the filling station and the control equipment of the unloading area. Therefore, there is no need to consider whether there are other logistics lines between the filling station and the unloading area, and it can adapt to more filling scenarios.

[0175] In some embodiments, the historical injection data includes injection data corresponding to at least one battery cell that has completed injection. Before the above step S102, the above method further includes the following steps S111 to S112:

[0176] Step S111, in response to receiving a data acquisition signal sent by the control device, obtaining the battery cell's injection data from the control device based on the position of the battery cell in the battery cell tray; wherein the battery cell's injection data is obtained by the control device during the battery cell injection process, and the data acquisition signal is sent by the control device to the host computer after determining that the injection device has completed the injection of the battery cell;

[0177] Step S112: Record the liquid injection data of the battery cell locally.

[0178] In this way, after the control device determines that the injection device has completed the injection of the battery cell, it can control the host computer to timely collect and record the injection data of the battery cell by sending a data acquisition signal to the host computer, reducing the probability of injection data loss due to abnormal conditions such as power failure of the control device, and improving the reliability of injection data acquisition and the stability of the injection system operation.

[0179] In some embodiments, the host computer has a first display interface, and the first display interface includes a data deletion area. The above method further includes the following steps S121 to S122:

[0180] Step S121, in response to receiving a liquid injection data deletion operation performed in the data deletion area, obtaining a tray identifier and / or a cell identifier for which data is to be deleted;

[0181] Step S122 : determining and deleting the liquid injection data corresponding to at least one battery cell based on the tray identification and / or battery cell identification for which data is to be deleted.

[0182] In this way, the operator can delete the injection data corresponding to a specific pallet identification and / or battery cell identification by performing the injection data deletion operation in the data deletion area, thereby reducing the problem that the battery cells that have not actually completed the injection are mistakenly recorded with the corresponding injection data under abnormal circumstances, resulting in the inability to inject liquid.

[0183] In some embodiments, the above step S102 may include: determining the injection completion status of each battery cell in the first battery cell set based on the historical injection data; and removing the battery cells in the first battery cell set that have completed injection based on the injection completion status to obtain a second battery cell set.

[0184] In some embodiments, when the injection data of the battery cell is included in the historical injection data, the injection completion status of the battery cell can be determined as completed injection; when the injection data of the battery cell is not included in the historical injection data, the injection completion status of the battery cell can be determined as uncompleted injection.

[0185] In this way, it is possible to quickly and accurately determine whether each battery cell in the first battery cell set has completed the liquid injection, thereby obtaining an accurate second battery cell set.

[0186] In some embodiments, the above step S101 may include the following steps S131 to S132:

[0187] Step S131, obtaining a tray identification of the battery cell tray;

[0188] Step S132: Based on the tray identifier, obtain the first battery cell set placed in the battery cell tray from a production execution system.

[0189] In this way, the first battery cell set can be quickly and accurately acquired from the production execution system according to the tray identification of the battery cell tray.

[0190] In some embodiments, the above step S131 may include the following steps S141 to S142:

[0191] Step S141, in response to receiving an identification acquisition signal sent by the control device, acquiring a first switch state, the first switch state indicating whether an identification input function is enabled; wherein the identification acquisition signal is sent by the control device when detecting that the battery cell tray enters the liquid injection device;

[0192] Step S142: acquiring a tray identifier of the battery cell tray based on the first switch state.

[0193] In this way, the tray identification of the battery tray can be flexibly obtained according to the on / off status of the identification input function, thereby better meeting the needs of actual production scenarios.

[0194] In some embodiments, the host computer has a second display interface, and the second display interface includes an identification input area. The above step S142 may include: when the first switch state is the first state, in response to receiving a tray identification input operation in the identification input area, obtaining the input tray identification; the first state indicates that the identification input function is enabled.

[0195] In this way, by turning on the identification input function, operators can be supported to manually enter pallet identification in the identification input area, thereby better meeting the needs of actual production scenarios.

[0196] In some embodiments, the host computer has a second display interface, and the second display interface includes an identification input area. Step S142 may include: when the first switch state is the second state, sending a code scanning instruction to the code scanning device, and determining the tray identification based on the code scanning result returned by the code scanning device in response to the code scanning instruction; the second state indicates that the identification input function is disabled.

[0197] In this way, when the identification input function is turned off, the scanning device can be automatically enabled to scan the battery tray, and the tray identification can be determined based on the scanning results of the scanning device, thereby improving the degree of automation in the filling process and improving production efficiency.

[0198] In some embodiments, determining the pallet identifier based on the scanning result returned by the scanning device in response to the scanning instruction in step S142 may include the following steps S151 or S152:

[0199] Step S151, when the scanning result indicates that the pallet scanning is normal, obtaining the pallet identification obtained by scanning from the scanning result;

[0200] Step S152: When the code scanning result indicates that the pallet code scanning is abnormal, a first prompt message is output, where the first prompt message is used to prompt whether to enable the identification input function.

[0201] In this way, on the one hand, when the code scanning result indicates that the pallet code scanning is normal, obtaining the pallet identification obtained by scanning from the code scanning result can make the obtained pallet identification more accurate; on the other hand, when the code scanning result indicates that the pallet code scanning is abnormal, outputting the first prompt information to prompt the operator whether to turn on the identification input function can reduce the situation where the battery cell filling process is wrong due to abnormal pallet code scanning, and enable the operator to discover the abnormality in time, thereby improving the stability of the filling system operation.

[0202] In some embodiments, the host computer includes a third display interface, and the third display interface includes a first function configuration area. The above method further includes the following steps S161 or S162:

[0203] Step S161, in response to receiving an activation operation of the identification input function in the first function configuration area, setting the first switch state to a first state indicating activation of the identification input function;

[0204] Step S162 : in response to receiving a deactivation operation of the identification input function in the first function configuration area, setting the first switch state to a second state indicating deactivation of the identification input function.

[0205] In this way, the identification input function can be flexibly turned on or off in the first function configuration area, thereby adapting to different application scenarios to better meet actual production needs.

[0206] In some embodiments, the above step S103 may include the following steps S171 to S172:

[0207] Step S171, obtaining a second switch state, where the second switch state indicates whether the abnormality ignoring function is enabled;

[0208] Step S172: determining the target battery cell set from the second battery cell set based on the second switch state.

[0209] In this way, the target battery cell set to be injected can be flexibly determined from the second battery cell set according to the activation state of the abnormality ignoring function, thereby better meeting the needs of actual production scenarios.

[0210] In some embodiments, the above step S172 may include: when the second switch state is a third state, determining the second battery cell set as the target battery cell set; wherein the third state indicates that an abnormality ignoring function is enabled.

[0211] In this way, by turning on the abnormality ignoring function, it is possible to support the injection of liquid into battery cells with abnormalities, thereby better meeting the needs of actual production scenarios.

[0212] In some embodiments, the above-mentioned step S172 may include: sending a liquid injection entry request for the second battery cell set to the production execution system to obtain an entry request result; when the second switch state is the fourth state, determining at least one battery cell with an entry abnormality in the second battery cell set based on the entry request result; removing the at least one battery cell with an entry abnormality from the second battery cell set to obtain the target battery cell set; wherein, the fourth state indicates that the abnormality ignoring function is turned off.

[0213] In this way, when the abnormality ignoring function is turned off, at least one battery cell with an entry abnormality in the second battery cell set can be removed from the second battery cell set to obtain a target battery cell set to be injected, thereby improving the accuracy of battery cell injection in the scenario where the abnormality ignoring function is turned off.

[0214] In some embodiments, the host computer has a fourth display interface, and the fourth display interface includes a second function configuration area. The above method may further include the following steps S181 or S182:

[0215] Step S181, in response to receiving an operation to enable the abnormality ignoring function in the second function configuration area, setting the second switch state to a third state indicating that the abnormality ignoring function is enabled;

[0216] Step S182 : in response to receiving a turning-off operation of the abnormality ignoring function in the second function configuration area, setting the second switch state to a fourth state indicating that the abnormality ignoring function is turned off.

[0217] In this way, the exception ignoring function can be flexibly turned on or off in the second function configuration area, thereby adapting to different application scenarios to better meet actual production needs.

[0218] The following uses the battery cell entry scenario in the secondary battery cell injection process as an example to illustrate the injection method provided by the embodiment of the present disclosure.

[0219] In the related art, in the secondary liquid injection process using the tray-type liquid injection method, there are at least the following problems:

[0220] 1) The cell trays that hold the cells are designed for reuse and recirculation. The same cell tray is used multiple times a day. Since it is usually impossible to determine whether the cells have been filled before they leave the station, if the cells in the cell tray are not properly removed, they may be refilled with the tray and then refilled, which may cause the cells to spray liquid.

[0221] 2) The cell trays entering the liquid filling equipment may contain cells that were abnormal in the previous process but were not picked out, or there may be vacancies in the cell trays. Therefore, it is necessary to know whether each filling position in the liquid filling equipment needs to be filled and the corresponding filling amount;

[0222] 3) Since the battery tray is reusable, the identification barcode attached to the battery tray may fall off during the recycling process due to high temperature, vibration, etc. This will cause the barcode scanning device to be unable to know the tray identification, and then the host computer and / or control equipment will be unable to identify the material, and ultimately the battery cells in the battery tray cannot be injected;

[0223] 4) During the production process, in order to reduce costs and increase efficiency, experimental materials are usually required. The state of the experimental materials is usually abnormal and cannot flow into the injection equipment to complete the injection process, thus failing to meet the experimental needs.

[0224] In addition, when the battery cell is finished filling and ready to be shipped out, the filling data of the battery cell can be uploaded to the MES system by sending a filling out request to the MES, which facilitates the subsequent production data traceability. In the related art, after the control equipment of the filling station collects the filling data of the battery cell, the filling data can be transferred to the control equipment of the unloading area, thereby facilitating the uploading of the filling data in the battery cell outbound process. However, in the pallet-type filling scenario, there may be other logistics lines from different suppliers between the filling station and the unloading area, making it impossible to transfer data between the control equipment of the filling station and the control equipment of the unloading area, resulting in the inability to upload the battery cell filling data during the battery cell outbound process.

[0225] On this basis, an embodiment of the present disclosure provides a liquid injection method, which includes a second liquid injection data collection process and a pallet scanning code entry process.

[0226] FIG8 is a schematic diagram of a two-shot injection data collection process according to an embodiment of the present disclosure. As shown in FIG8 , the two-shot injection data collection process according to an embodiment of the present disclosure includes the following steps S201 to S209:

[0227] Step S201: After the host computer software is initialized and the connection to the PLC of the injection station is successful, the second injection data collection process is started;

[0228] In step S202 , after the PLC determines that the liquid injection device has completed the liquid injection into each battery cell in the battery cell tray, the PLC sets the signal value of the data acquisition signal point in the PLC to True.

[0229] Step S203: The host computer reads the signal value of the data acquisition signal point;

[0230] Step S204: When the host computer reads the signal value of the data acquisition signal point as True, it obtains the liquid injection data of each battery cell in the battery cell tray from the PLC and sets the signal value of the data acquisition signal point to False;

[0231] Step S205: The host computer records the collected battery cell injection data into a local database;

[0232] In some embodiments, after recording the liquid injection data of the battery cell into the local database, the host computer may further set the liquid injection completion status of the battery cell to liquid injection completed.

[0233] Step S206: The host computer determines whether the collection of the liquid injection data of each battery cell in the battery cell tray is completed;

[0234] If so, go to step S207; if not, go to step S208.

[0235] Step S207: The host computer writes the first acquisition result value to the data acquisition result point in the PLC.

[0236] The first collection result value may indicate that the injection data of each battery cell in the battery cell tray is successfully collected and recorded.

[0237] Step S208: The host computer writes the second acquisition result value to the data acquisition result point in the PLC.

[0238] The second collection result value may indicate that the liquid injection data of at least one battery cell in the battery cell tray was not collected and recorded successfully.

[0239] In step S209, the host computer determines whether the value of the data acquisition result point is zero.

[0240] Here, the PLC can return the value of the data collection result point to 0 before the next two-shot filling data collection process. If it is determined that the value of the data collection result point has returned to 0, the current two-shot filling data collection process is terminated.

[0241] FIG9 is a schematic diagram of a pallet code scanning process for entering a station provided by an embodiment of the present disclosure. As shown in FIG9 , the pallet code scanning process for entering a station includes the following steps S301 to S317:

[0242] Step S301: The host computer software is initialized and the connection between the PLC and the barcode scanning device of the filling station is successful, and the pallet barcode scanning and entry process is started;

[0243] In step S302 , in response to detecting that the battery cell tray enters the liquid injection device, the PLC sets the signal value of the trigger point in the PLC to True.

[0244] Step S303: When the host computer reads the signal value of the trigger point and finds that it is True, it sends a code scanning instruction to the code scanning device;

[0245] In some embodiments, before sending a scan command to the scanner, the host computer may first determine whether a dry run branch is currently enabled. If the dry run branch is not enabled, the host computer may send a scan command to the scanner. It is understood that if the dry run branch is enabled, the host computer may block peripherals such as the scanner, interfaces provided by the MES system, and the like, thereby performing a dry run test on the host computer software.

[0246] Step S304: The scanning device scans the battery tray in response to the scanning instruction, obtains a scanning result, and returns the scanning result to the host computer;

[0247] Step S305: The host computer determines whether there is any abnormality in the code scanning based on the code scanning result;

[0248] If so, go to step S306; if not, go to step S307.

[0249] Step S306: The host computer writes the first scan result value to the scan result point in the PLC;

[0250] The first scanning result value indicates that there is an abnormality in the scanning device.

[0251] In some embodiments, when the PLC reads the first scan result value from the scan result point, it can enter the exception handling process.

[0252] Step S307: The host computer sends a request for obtaining battery cell information to the MES based on the pallet identifier of the battery cell pallet, and receives the battery cell information result returned by the MES;

[0253] Here, the battery cell information acquisition request may be used to request acquisition of information of each battery cell placed in the battery cell tray from the MES.

[0254] In some embodiments, before sending a cell information acquisition request to the MES, the host computer may first determine whether the idle run branch is currently enabled. If the idle run branch is not enabled, the host computer may send a cell information acquisition request to the MES based on the pallet identification of the cell pallet.

[0255] Step S308: The host computer determines whether the cell information result is obtained successfully;

[0256] If so, go to step S310; if not, go to step S309.

[0257] Step S309: The host computer writes the first request result value to the cell information acquisition result point in the PLC;

[0258] The first request result value indicates that the cell information result acquisition is abnormal. In addition, the host computer can also print a log of abnormal cell information result acquisition.

[0259] Step S310: The host computer obtains a first set of battery cells placed in the battery tray from the battery cell information result, and determines a second set of battery cells that have not completed liquid filling from the first set of battery cells based on local historical liquid filling data;

[0260] Step S311: The host computer obtains the position of each battery cell in the second battery cell set in the battery cell tray from the MES, and records the obtained position of each battery cell in the battery cell tray to the local computer;

[0261] Step S312: The host computer sends a liquid injection entry request for the second battery cell set to the MES, and obtains an entry request result;

[0262] Step S313: The host computer determines whether the second battery cell set enters the station successfully based on the station entry request result;

[0263] If all cells in the second cell set have successfully entered the station, proceed to step S314;

[0264] If all cells in the second cell set fail to enter the station, proceed to step S315;

[0265] If some of the cells in the second cell set enter the station successfully, the process goes to step S316 .

[0266] Step S314: The host computer sends the position of each battery cell in the second battery cell set in the battery cell tray to the PLC, and writes the first entry result value into the entry result point in the PLC;

[0267] The first entry result value indicates that each battery cell in the second battery cell set has successfully entered the station.

[0268] After receiving the position of each battery cell in the second battery cell set in the battery cell tray, the PLC may control the liquid injection device to inject liquid into each battery cell based on the position corresponding to each battery cell.

[0269] Step S315, the host computer writes the second entry result value at the entry result point;

[0270] The second station entry result value indicates that each battery cell in the second battery cell set has an abnormality in entering the station.

[0271] Step S316: The host computer removes the battery cells with abnormal entry from the second battery cell set;

[0272] Step S317: confirm that the pallet scanning code entry process is completed.

[0273] The liquid injection method provided by the embodiment of the present disclosure is based on the above-mentioned two-injection liquid injection data collection process and the pallet scanning code entry process. It can quickly identify the liquid injection completion status of each battery cell in the battery cell pallet at the liquid injection station, thereby determining which positions in the battery cell pallet need to be injected with liquid, reducing the situation of incorrect liquid injection, and after the battery cell injection is completed, the liquid injection data is saved to the local database of the host computer. At this time, even if the equipment is powered off when the battery cells are piled up on the logistics line, the liquid injection data will not disappear due to the power outage, which can reduce the problem of no data in batches of battery cells caused by the loss of liquid injection data.

[0274] In some embodiments, the pallet identification of the battery cell pallet can be manually input by the operator or obtained by the host computer using a code scanning device. In the process of obtaining the pallet identification by scanning the code scanning device in the above steps S303 to S306, if the host computer reads the signal value of the identification acquisition trigger point and the value is True, as shown in Figure 10, the following steps S401 to S406 can be executed:

[0275] Step S401, determining whether the identification input function is enabled;

[0276] If so, go to step S402; if not, go to step S403.

[0277] Step S402 , in response to receiving a pallet identification input operation in the identification input area, obtaining the input pallet identification;

[0278] Step S403: Send a code scanning instruction to the code scanning device;

[0279] Step S404, determining whether the pallet code scanning is normal;

[0280] If so, go to step S405; if not, go to step S406.

[0281] Step S405: Obtain the pallet identification obtained by scanning from the scanning result returned by the scanning device;

[0282] Step S406: output the first prompt information.

[0283] The first prompt information may be used to prompt the operator whether to enable the identification input function.

[0284] In this way, in the event of an abnormality in pallet code scanning, the operator can turn on the identification input function and manually enter the pallet identification in the identification input area, thereby saving time in troubleshooting problems in the event of an abnormality in pallet code scanning and improving production efficiency.

[0285] In some embodiments, it is considered that the following specialized cells may exist during the process of completing the cell process:

[0286] 1) Experimental materials introduced by cell process engineers during the process of optimizing the cell process may be judged by MES as not meeting the injection conditions, resulting in abnormal entry and failure to enter the station for injection;

[0287] 2) There are abnormal problems in the previous process and the battery cells cannot enter the station normally.

[0288] Therefore, the above steps S312 to S316 can be further improved. As shown in FIG11 , in the improved solution, the host computer can determine the target battery cell set to be injected using the following method described in steps S501 to S505:

[0289] Step S501, sending a filling station entry request for the second battery cell set to the MES, and obtaining the station entry request result;

[0290] Step S502, determining whether the exception ignoring function is enabled;

[0291] If so, go to step S503; if not, go to step S504.

[0292] Step S503, determining the second battery cell set as the target battery cell set;

[0293] Step S504: Based on the station entry request result, remove the cells with abnormal station entry in the second cell set to obtain a target cell set;

[0294] Step S505 : sending the position of each battery cell in the target battery cell set in the battery cell tray to the PLC.

[0295] In this way, operators can flexibly turn on or off the abnormality ignore function according to actual production needs. When the abnormality ignore function is turned on, the abnormality of the battery cell entering the station can be ignored, and the second battery cell set can be directly determined as the target battery cell set to be injected. This can greatly reduce the time it takes to complete the process of the battery cell with abnormality entering the station and reduce the situation of material expiration. At the same time, it can also meet the needs of battery cell process engineers to test new processes, greatly reduce the testing time of experimental materials, and reduce the time for changing materials caused by human or environmental factors, thereby greatly improving production efficiency.

[0296] It should be pointed out here that the above description of the various embodiments tends to emphasize the differences between the various embodiments, and the same or similar aspects can be referenced to each other.

[0297] 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.

[0298] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or 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.

[0299] In the several embodiments provided in the present disclosure, it should be understood that the disclosed controller and method can be implemented in other ways. The controller embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the controller or unit can be electrical, mechanical or other forms.

[0300] 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.

[0301] The above is only an embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or replacements that can be easily conceived by any technician familiar with this technical field within the technical scope disclosed in this disclosure should be covered by the protection scope of the present disclosure. Industrial Applicability

[0302] The disclosed embodiment provides a liquid injection system and liquid injection method, wherein the liquid injection system includes a liquid injection device, a host computer, and a control device; the liquid injection device is used to inject liquid into the battery cell during the battery cell injection process; the host computer is used to: collect the liquid injection data of the battery cell after the battery cell injection is completed, and record the liquid injection data of the battery cell locally as historical liquid injection data; determine the first battery cell set placed in the battery cell tray currently entering the liquid injection device; determine the second battery cell set that has not completed liquid injection from the first battery cell set based on the local historical liquid injection data; determine the target battery cell set to be injected from the second battery cell set; send the position of each target battery cell in the target battery cell set in the battery cell tray to the control device; the control device is used to control the liquid injection device to inject liquid into the target battery cell set based on the corresponding position of each target battery cell. In this way, the situation of repeated liquid injection of battery cells can be reduced, product quality and production efficiency can be improved, and costs can be saved.

Claims

1. A liquid injection system comprising: Liquid injection equipment, host computer and control equipment; among them, The liquid injection equipment is used to inject liquid into the battery cell during the battery cell liquid injection process; The host computer is used to collect the injection data of the battery cell after the battery cell injection is completed, and record the injection data of the battery cell as historical injection data locally; The host computer is further configured to determine a first set of battery cells currently placed in a battery cell tray entering the liquid injection device; determine a second set of battery cells that have not yet completed liquid injection from the first set of battery cells based on local historical liquid injection data; determine a target set of battery cells to be injected from the second set of battery cells; and send the position of each target battery cell in the target set of battery cells in the battery cell tray to the control device; The control device is used to control the liquid injection device to inject liquid into the target battery cell set based on the position corresponding to each target battery cell.

2. The liquid injection system according to claim 1, wherein: The historical liquid injection data includes liquid injection data corresponding to at least one battery cell that has completed liquid injection; The control device is used to obtain the injection data of the battery cell during the battery cell injection process, and after determining that the injection device has completed the injection of the battery cell, send a data acquisition signal to the host computer; The host computer is configured to obtain the liquid injection data of the battery cell from the control device in response to receiving the data acquisition signal based on the position of the battery cell in the battery cell tray, and record the liquid injection data of the battery cell locally.

3. The liquid injection system according to claim 2, wherein: The host computer has a first display interface, and the first display interface includes a data deletion area; The host computer is used to obtain the tray identification and / or battery cell identification to be deleted in response to receiving the liquid injection data deletion operation performed in the data deletion area, and based on the tray identification and / or battery cell identification to be deleted, determine and delete the liquid injection data corresponding to at least one battery cell locally.

4. The liquid injection system according to any one of claims 1 to 3, wherein: The host computer is configured to obtain a tray identifier of the battery cell tray, and based on the tray identifier, obtain the first battery cell set placed in the battery cell tray from a production execution system.

5. The liquid injection system according to claim 4, wherein: The control device is configured to send an identification acquisition signal to the host computer in response to detecting that the battery cell tray enters the liquid injection device; The host computer is configured to obtain a first switch state in response to receiving the identification acquisition signal, and obtain the tray identification of the battery tray based on the first switch state; wherein the first switch state indicates whether an identification input function is enabled.

6. The liquid injection system according to claim 5, wherein: The host computer has a second display interface, and the second display interface includes an identification input area; The host computer is configured to obtain the input pallet identification in response to receiving a pallet identification input operation in the identification input area when the first switch state is a first state; the first state indicates that the identification input function is enabled.

7. The liquid injection system according to claim 5 or 6, wherein: The liquid injection system also includes a code scanning device; The host computer is configured to send a code scanning instruction to the code scanning device when the first switch state is the second state; The code scanning device is used to scan the battery tray in response to the code scanning instruction, obtain a code scanning result, and return the code scanning result to the host computer; The host computer is used to determine the pallet identification based on the code scanning result; the second state represents that the identification input function is turned off.

8. The liquid injection system according to claim 7, wherein: The host computer is configured to obtain the pallet identification obtained by scanning from the scanning result when the scanning result indicates that the pallet scanning is normal; Alternatively, the host computer is configured to output a first prompt message when the code scanning result indicates that the pallet code scanning is abnormal, wherein the first prompt message is used to prompt whether to enable the identification input function.

9. The liquid injection system according to any one of claims 5 to 8, wherein: The host computer includes a third display interface, and the third display interface includes a first function configuration area; The host computer is configured to, in response to receiving an activation operation of the identification input function performed in the first function configuration area, set the first switch state to a first state indicating activation of the identification input function; Alternatively, the host computer is configured to, in response to receiving a deactivation operation of the identification input function in the first function configuration area, set the first switch state to a second state indicating that the identification input function is deactivated.

10. The liquid injection system according to any one of claims 1 to 9, wherein: The host computer is configured to obtain a second switch state, and determine the target battery cell set from the second battery cell set based on the second switch state; The second switch state indicates whether the abnormality ignoring function is enabled.

11. The liquid injection system according to claim 10, wherein: The host computer is configured to determine the second battery cell set as the target battery cell set when the second switch state is a third state; wherein the third state indicates that an abnormality ignoring function is enabled.

12. The liquid injection system according to claim 10 or 11, wherein: The host computer is used to send a liquid injection entry request for the second battery cell set to the production execution system, obtain an entry request result, and when the second switch state is the fourth state, based on the entry request result, determine at least one battery cell in the second battery cell set with an entry abnormality, and remove the at least one battery cell with an entry abnormality from the second battery cell set to obtain the target battery cell set; wherein, the fourth state indicates that the abnormality ignoring function is turned off.

13. The liquid injection system according to any one of claims 10 to 12, wherein: The host computer has a fourth display interface, and the fourth display interface includes a second function configuration area; The host computer is configured to, in response to receiving an operation to enable the abnormality ignoring function in the second function configuration area, set the second switch state to a third state indicating that the abnormality ignoring function is enabled; Alternatively, the host computer is configured to, in response to receiving a turning-off operation of the abnormality ignoring function performed in the second function configuration area, set the second switch state to a fourth state indicating that the abnormality ignoring function is turned off.

14. A liquid injection method, applied to a host computer, comprising: Determine a first battery cell set placed in a battery cell tray currently entering a liquid filling device; Based on the local historical injection data of the host computer, determining a second set of battery cells that have not completed injection from the first set of battery cells; wherein the historical injection data is collected and recorded locally by the host computer after the battery cells are injected; determining a target battery cell set to be injected from the second battery cell set; The position of each target battery cell in the target battery cell set in the battery cell tray is sent to the control device, so that the control device controls the liquid injection device to inject liquid into the target battery cell set based on the position corresponding to each target battery cell.

15. The liquid injection method according to claim 14, wherein: The historical liquid injection data includes liquid injection data corresponding to at least one battery cell that has completed liquid injection; Before determining the second battery cell set that has not completed liquid injection from the first battery cell set based on the local historical liquid injection data of the host computer, the method further includes: In response to receiving a data acquisition signal sent by the control device, based on the position of the battery cell in the battery cell tray, obtaining the battery cell injection data from the control device; wherein the battery cell injection data is obtained by the control device during the battery cell injection process, and the data acquisition signal is sent to the host computer by the control device after determining that the injection device has completed the injection of the battery cell; The injection data of the battery cell is recorded locally.

16. The liquid injection method according to claim 15, wherein: The host computer has a first display interface, and the first display interface includes a data deletion area; the method further includes: In response to receiving a liquid injection data deletion operation performed in the data deletion area, obtaining a tray identifier and / or a cell identifier for which data deletion is to be performed; Based on the tray identification and / or battery cell identification for which data is to be deleted, the liquid injection data corresponding to at least one battery cell is determined and deleted.

17. The liquid injection method according to any one of claims 14 to 16, wherein: The determining of the first battery cell set placed in the battery cell tray currently entering the liquid injection device includes: Obtaining a tray identifier of the battery cell tray; Based on the tray identifier, the first battery cell set placed in the battery cell tray is obtained from a production execution system.

18. The liquid injection method according to claim 17, wherein: The obtaining of the tray identifier of the battery cell tray includes: In response to receiving an identification acquisition signal sent by the control device, acquiring a first switch state, the first switch state indicating whether an identification input function is enabled; wherein the identification acquisition signal is sent by the control device when detecting that the battery cell tray enters the liquid injection device; Based on the first switch state, a tray identifier of the battery cell tray is obtained.

19. The liquid injection method according to claim 18, wherein: The host computer has a second display interface, and the second display interface includes an identification input area; The acquiring, based on the first switch state, a tray identifier of the battery cell tray, includes one of the following: When the first switch state is the first state, in response to receiving a tray identification input operation in the identification input area, the input tray identification is acquired; the first state indicates that the identification input function is enabled; When the first switch state is the second state, a scanning instruction is sent to the scanning device, and the tray identification is determined based on the scanning result returned by the scanning device in response to the scanning instruction; the second state indicates that the identification input function is turned off.

20. The liquid injection method according to claim 19, wherein: Determining the pallet identifier based on the scanning result returned by the scanning device in response to the scanning instruction includes one of the following: When the scanning result indicates that the pallet scanning is normal, obtaining the pallet identification obtained by scanning from the scanning result; When the code scanning result indicates that the pallet code scanning is abnormal, a first prompt message is output, where the first prompt message is used to prompt whether to enable the identification input function.

21. The liquid injection method according to any one of claims 14 to 20, wherein: The determining of a target battery cell set to be injected from the second battery cell set includes: Acquire a second switch state, where the second switch state indicates whether an abnormality ignoring function is enabled; The target battery cell set is determined from the second battery cell set based on the second switch state.

22. The liquid injection method according to claim 21, wherein: The determining the target battery cell set from the second battery cell set based on the second switch state includes one of the following: When the second switch state is a third state, determining the second battery cell set as the target battery cell set; wherein the third state indicates that an abnormality ignoring function is enabled; Send a liquid injection entry request for the second battery cell set to the production execution system to obtain an entry request result; when the second switch state is the fourth state, determine at least one battery cell in the second battery cell set with an entry abnormality based on the entry request result; remove the at least one battery cell with an entry abnormality from the second battery cell set to obtain the target battery cell set; wherein, the fourth state indicates that the abnormality ignoring function is turned off.

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