A soft package battery liquid injection production system and control method

Abstract

The application discloses a soft package battery liquid injection production system and a control method. The control method comprises generating a material demand sequence based on material demand signals of multiple liquid injection production lines and generating an identification sequence based on identification information of an identification area where the multiple liquid injection production lines are connected with a logistics line. When responding to a certain material demand signal in the material demand sequence, the identification sequence is queried and a response target is determined. The previous information is identification information before an identification area corresponding to the material demand signal. The response target is a material box loaded with empty battery cores or an empty material box. When the response target runs to the identification area corresponding to the material demand signal, secondary identification is performed, and the response target is transported to the liquid injection production line corresponding to the material demand signal.

Description

Technical Field

[0001] This application relates to the field of battery cell liquid injection technology, and more specifically, to a soft-pack battery liquid injection production system and control method. Background Technology

[0002] With the rapid development of the battery industry and the increase in market demand, battery manufacturers are increasingly demanding production capacity. Currently, the production capacity of pouch battery production lines is stabilizing, and it is difficult to increase the capacity of a single production line, especially in the electrolyte filling stage. Often, the empty cells without electrolyte filling and the finished cells after electrolyte filling are manually transferred. Establishing more production lines can effectively solve the capacity problem, but it also increases labor costs and transfer time. It is necessary to overcome site limitations and implement the layout of multiple production lines to improve capacity. At the same time, a compatible control strategy is urgently needed for the established production lines to achieve automated operation of the entire system. Summary of the Invention

[0003] To address the aforementioned issues, this application provides a soft-pack battery liquid injection production system and control method. Based on multiple production lines, a double-circulation logistics line is built to automate the feeding and unloading operations on multiple production lines, effectively increasing production capacity.

[0004] In a first aspect, embodiments of this application provide a basic soft-pack battery liquid injection production system, including multiple liquid injection production lines and a circulating logistics line located at both ends of the multiple liquid injection production lines. Each end of the liquid injection production line is provided with a transition chamber that is connected to the logistics line at both ends. The logistics line is equipped with a material box for loading battery cells. The transition chamber includes an infeed channel and an outfeed channel that are connected to the logistics line, so that the material box located on the logistics line enters from the infeed channel and returns to the logistics line from the outfeed channel. The liquid injection production line includes, in sequence, a lower battery position, an empty package weighing module, a cell clamping module, a vacuum liquid injection module, a vacuum settling module, a vacuum packaging module, a cell lower clamping module, a liquid injection weighing module, an NG buffer module, a battery boxing position, and a central control module for generating material demand signals. An identification area is provided at the docking position between the logistics line and the liquid injection production line. The identification area is equipped with an identification module for generating identification information. The identification module includes a feeding identification unit and a discharging identification unit. The feeding identification unit is located at the docking position between the feeding channel and the logistics line and is used for feeding identification in the feeding area and box entry identification in the discharging area. The discharging identification unit is located at the docking position between the discharging channel and the logistics line.

[0005] Preferably, the lower battery position is the feed end of the liquid injection production line, and the battery packaging position is the discharge end of the liquid injection production line; the logistics line includes logistics line one and logistics line two, with logistics line one located at the feed end of the liquid injection production line and logistics line two located at the discharge end of the liquid injection production line. The logistics line is equipped with a first branch and a second branch, which operate independently, corresponding to the feeding channel and the discharging channel, respectively. The first branch is set up between the logistics line and the feeding channel to transfer the material box loaded with empty battery cells or an empty material box on the logistics line to the feeding channel. The second branch is set up between the logistics line and the discharging channel to transfer the material box loaded with liquid-filled battery cells or an empty material box on the discharging channel to the logistics line.

[0006] Preferably, the lower battery compartment is equipped with a first robotic arm that grips and transfers empty battery cells, gripping and transferring the empty battery cells in the material box to the battery cell clamping module; the battery box compartment is equipped with a second robotic arm that grips and transfers liquid-filled battery cells, gripping and transferring the liquid-filled battery cells on the lower battery cell clamping module to the material box.

[0007] Preferably, both the first and second robotic arms are equipped with a weighing sensor and a trigger sensor, and both the first and second robotic arms have a barcode scanner on the side of their running path facing the battery cell. The barcode scanner is used to identify the battery cell being grasped.

[0008] Furthermore, it also includes a passageway, one end of which passes over or under the logistics line and is located between two adjacent liquid injection production lines, while the other end of the passageway is located outside the logistics line.

[0009] Furthermore, the lower battery compartment is equipped with a first robotic arm that grips and transfers empty battery cells, gripping and transferring the empty battery cells in the material box to the battery cell clamping module; the empty package weighing module includes a barcode scanner and a weighing sensor, the barcode scanner is located on one side of the running path of the first robotic arm, the weighing sensor is located on the first robotic arm, the weighing sensor is electrically connected to the barcode scanner, and the empty package weighing module is electrically connected to the vacuum liquid injection module.

[0010] Furthermore, the battery packaging position is equipped with a second robotic arm that grips and transfers the liquid-filled battery cells, gripping and transferring the liquid-filled battery cells from the battery cell clamping module to the material box; the liquid-filled weighing module includes a barcode scanner and a weighing sensor, the barcode scanner is located on one side of the running path of the second robotic arm, the weighing sensor is located on the second robotic arm, and the weighing sensor is electrically connected to the barcode scanner.

[0011] Furthermore, the NG buffer module is electrically connected to the liquid injection weighing module and the empty package weighing module, and the liquid injection weighing module and the empty package weighing module are electrically connected to the second robotic arm.

[0012] Furthermore, an empty package NG buffer module is provided between the lower battery position and the cell clamping module. The empty package weighing module is electrically connected to the empty package NG buffer module and is connected to the first robotic arm. The liquid filling weighing module is electrically connected to the NG buffer module and is connected to the second robotic arm.

[0013] Furthermore, the transition chamber also includes a transfer channel, which is installed between the feeding channel and the discharging channel to transfer the material box from the feeding channel to the discharging channel.

[0014] Furthermore, the feeding channel, the discharging channel, and the transfer channel can all operate independently.

[0015] Furthermore, the feeding channel and the discharging channel operate independently, the feeding channel extends into a docking channel, the docking channel operates synchronously with the discharging channel, and the front end of the docking channel docks with the discharging channel, thereby transferring the material box to the discharging channel.

[0016] Embodiments of this application also provide a control method for a soft-pack battery electrolyte filling production system, applicable to the aforementioned soft-pack battery electrolyte filling production system, the control method comprising: A material request sequence is generated based on the material request signals from multiple liquid injection production lines, and an identification sequence is generated based on the identification information of the identification area where the multiple liquid injection production lines are connected to the logistics line. When responding to a material request signal in the material request sequence, the preceding information of the identification sequence is queried and the response target is determined; the preceding information is the identification information before the identification area corresponding to the material request signal; the response target is a material box loaded with empty battery cells or an empty material box; When the response target moves to the identification area corresponding to the material demand signal, a second identification is performed, and the identified response target is transferred to the liquid injection production line corresponding to the material demand signal.

[0017] Preferably, the identification area is provided at both ends of the liquid injection production line, and the material demand signal corresponds to the identification information in the identification area; The material request signals include the feeding signal for empty battery cells and the feeding signal for liquid-filled battery cells; the material request sequence includes the feeding sequence and the feeding sequence. The identification area includes a feeding area and a discharging area; the identification information includes feeding identification in the feeding area and box entry identification in the discharging area; the identification sequence includes a feeding identification sequence and a box entry identification sequence. The target of the response to the feeding signal, feeding sequence, and feeding identification sequence is the material box loaded with empty battery cells; The target of the response to the box feeding signal, box feeding sequence, and box feeding identification sequence is an empty box.

[0018] Preferably, the step of "generating a material request sequence based on the material request signals of multiple liquid injection production lines, and generating an identification sequence based on the identification information of the identification area where the multiple liquid injection production lines are connected to the logistics line" specifically includes: The multiple liquid injection production lines are sequentially sorted, and the material demand signal on each liquid injection production line is associated with the sorted sequence number to generate the material demand sequence; Multiple liquid injection production lines are connected to the logistics line to form multiple identification areas. The identification information of the multiple identification areas is associated with the corresponding sorted sequence number to generate the identification sequence. The identification sequence includes only the most up-to-date identification information for the response target.

[0019] Preferably, the step of "when responding to a certain material signal in the material sequence, querying the preceding information in the identification sequence and determining the response target" specifically includes: When the material demand signal is detected, the serial number of the liquid injection production line corresponding to the material demand signal is traced. Based on the serial number, all identification information preceding the serial number in the identification sequence is attributed to the preceding information; the preceding information is queried to determine the response target that satisfies the material signal; The conditions for satisfying the response target of the material demand signal include: the identification information of the response target is an empty material box or the identification information of the response target is a material box with a full load of empty battery cells.

[0020] Preferably, it also includes an overload of the response target: The operating position of the response target is calculated based on the operation data of the logistics line and the identification time of the response target; When the response target reaches any of the identification areas, the identification information and serial number of that identification area are associated with the response target. Obtain the associated identification information and / or serial number of the response target; When the number of associated data matches the preset number of overloads, the associated data of the response target is cleared. The associated data includes identification information and serial number; the heavy load data is consistent with the number of identification zones set on the logistics line or the number of liquid injection production lines managed by the logistics line.

[0021] Preferably, the step of "when the response target runs to the identification area corresponding to the material demand signal, a second identification is performed, and the identified response target is transferred to the liquid injection production line corresponding to the material demand signal" specifically includes: The identification information of the response target in the preceding information is obtained and defined as the response parameter; The running position of the response target on the logistics line is calculated based on the operation data of the logistics line and the identification time of the response target. When the response target moves to the identification area corresponding to the material signal, the response target is identified a second time; The identification information obtained from the secondary identification is defined as verification parameters; Determine whether the response parameters match the verification parameters: If there is no match, the next response target is determined by querying the preceding information of the identified sequence; If a match is found, a transfer signal is sent, and the liquid is transferred to the corresponding injection production line via the identified response target.

[0022] Secondly, embodiments of this application provide a control device for a soft-pack battery electrolyte injection production system, the control device comprising: Sequence generation module: Generates a material request sequence based on the material request signals from multiple liquid injection production lines, and generates an identification sequence based on the identification information of the identification area where multiple liquid injection production lines are connected to the logistics line; Target determination module: When responding to a material demand signal in the material demand sequence, it queries the preceding information of the identification sequence to determine the response target; the preceding information is the identification information before the identification area corresponding to the material demand signal; the response target is a material box loaded with empty battery cells or an empty material box; Response execution module: When the response target runs to the identification area corresponding to the material demand signal, it performs secondary identification and transfers the identified response target to the liquid injection production line corresponding to the material demand signal.

[0023] Thirdly, embodiments of this application provide an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the method provided as in the first aspect or any possible implementation of the first aspect.

[0024] Fourthly, embodiments of this application provide a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the method provided as in the first aspect or any possible implementation thereof.

[0025] The beneficial effects of this invention are as follows: This invention relates to a soft-pack battery electrolyte injection production system and control method. It establishes a double-sided circulating logistics line based on multiple electrolyte injection production lines, and loads battery cells through material boxes to realize automated loading and unloading operations of the electrolyte injection production line, thereby increasing production capacity.

[0026] Intelligent identification of material demand signals on the liquid injection production line includes the feeding operation of empty battery cells and the discharging operation of liquid-injected battery cells. The system also identifies and transfers target material boxes on the logistics lines at both ends of the production line, completing the feeding and discharging of the production line and effectively improving production capacity. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A schematic diagram of the layout of a soft-pack battery liquid injection production system provided in this application embodiment; Figure 2 A schematic diagram of the configuration of a liquid injection production line provided in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application; Figure 4 A schematic flowchart of a control method for a soft-pack battery liquid injection production system provided in the embodiments of the application; Figure 5 This is a schematic diagram of the control device for a soft-pack battery liquid injection production system provided in an embodiment of this application. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0030] In the following description, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The following description provides multiple embodiments of this application, which can be substituted or combined with each other. Therefore, this application can also be considered to include all possible combinations of the same and / or different embodiments described. Thus, if one embodiment includes features A, B, and C, and another embodiment includes features B and D, then this application should also be considered to include embodiments containing one or more other possible combinations of A, B, C, and D, even if such embodiments are not explicitly described in the following text.

[0031] The following description provides examples and does not limit the scope, applicability, or examples set forth in the claims. Changes may be made to the function and arrangement of the described elements without departing from the scope of this application. Various processes or components may be appropriately omitted, substituted, or added to the examples. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Furthermore, features described with respect to some examples may be combined into other examples.

[0032] See Figure 1 , Figure 2 This application provides a soft-pack battery production system, including multiple liquid injection production lines and a circulating logistics line located at both ends of the multiple liquid injection production lines. Each end of the liquid injection production line is provided with a transition chamber that is connected to the logistics line at both ends. The logistics line is equipped with a material box for loading battery cells. The transition chamber includes a feeding channel and a discharging channel that are connected to the logistics line, so that the material box located on the logistics line enters from the feeding channel and returns to the logistics line from the discharging channel.

[0033] In this application, multiple liquid injection production lines can be set up in parallel, with their functional ends aligned, i.e., the inlet end is on the right and the outlet end is on the left. Figure 1 As shown, a transition chamber is provided at both the inlet and outlet ends to establish a transfer channel for the material box with the logistics line; the logistics line includes logistics line one and logistics line two. For example, logistics line one is located at the inlet end of the liquid injection production line, and logistics line two is located at the outlet end of the liquid injection production line.

[0034] Understandably, multiple liquid injection production lines can also be arranged in other ways, as long as their functional ends are connected to the logistics lines.

[0035] As a preferred embodiment, this application uses the right logistics line for loading empty battery cells and the left logistics line for downloading liquid-filled battery cells as an example for illustration and explanation. This layout reduces the utilization rate of the material box on each logistics line, but has a high fault tolerance rate and a low temporary downtime rate, which is conducive to improving production capacity.

[0036] In one feasible embodiment, if it is possible to identify whether the material box contains empty battery cells and liquid-filled battery cells, the functional ends of the liquid-filled production line can be alternately set, and do not need to be all on the same side. The material boxes on the two logistics lines are the same and have no substantial distinction, which can realize that the material box in three states on the same logistics line is an empty material box, a material box containing empty battery cells, and a material box containing liquid-filled battery cells. The loading of material boxes and empty battery cells and the unloading of liquid-filled battery cells can be carried out manually or mechanically, just to ensure the proportion of material boxes in each state on each logistics line. However, this layout will increase the complexity of material box use, have a low fault tolerance rate, and a high rate of short-term temporary downtime. More accurate identification and reasonable planning strategies for material box arrangement are needed to achieve better material box utilization.

[0037] In the embodiments of this application, identification areas are divided along the logistics line, such as... Figure 1 As shown, the status of the material box within the identification area can be identified through visual methods, weighing, etc., that is, whether the material box is empty or full. After the identification is completed, it can be determined whether the material box should enter the liquid injection production line. On logistics line one, cassettes fully loaded with empty battery cells enter the liquid injection production line through the feed channel of the transition chamber, where the empty battery cells are removed from the shelves. After all the battery cells in the cassettes have been removed, the empty cassettes are transferred from the feed channel to the discharge channel and then returned to logistics line one. During this process, the cassettes serve as carriers for transfer between equipment, carrying a batch and a certain number of empty battery cells.

[0038] On logistics line two, empty material boxes enter the liquid injection production line through the feed channel of the transition chamber to be boxed for liquid injection of battery cells. After the material box is full, it is transferred from the feed channel to the discharge channel and then returned to logistics line two. During this process, the material box serves as a carrier for transfer between equipment, and the carrier carries a batch and a certain number of liquid injection battery cells.

[0039] In the embodiments of this application, an identification area is set at the docking position between the logistics line and the liquid injection production line. The identification area is equipped with an identification module for generating identification information. The identification module can be divided into a feeding identification unit and a discharging identification unit according to functional requirements. The feeding identification unit is set at the docking position between the feeding channel and the logistics line and is used for feeding identification in the feeding area and box entry identification in the discharging area. The discharging identification unit is set at the docking position between the discharging channel and the logistics line.

[0040] In one specific embodiment, the identification module can be located above the identification area, specifically as an identification camera, which uses image recognition to confirm whether the material box is fully loaded with battery cells. It can specifically include two units, serving the infeed channel and the discharge channel respectively. More precisely, image recognition can be performed based on the differences between liquid-filled and empty battery cells to determine whether the battery cells in the material box are liquid-filled. It is understood that liquid-filled battery cells, after vacuum sealing, have a more "compact" shape than empty battery cells and possess certain identifiable characteristics.

[0041] In another specific embodiment, the identification module can be located below the identification area or embedded in the logistics line. Specifically, it is a weighing sensor or weighing scale, which uses weighing to confirm whether the material box is fully loaded with battery cells. It can specifically include two units, serving the infeed channel and the outfeed channel respectively. More precisely, identification can be based on the weight difference between liquid-filled and empty battery cells, thereby determining whether the battery cells in the material box are liquid-filled. It is possible that liquid-filled battery cells, after being filled, are heavier than empty battery cells. With multiple liquid-filled battery cells in the material box, the accumulated weight allows for the measurement of sufficient difference data.

[0042] The two implementation methods described above can be selected based on specific parameters. If there is no need to identify whether liquid is being injected, but only a need to identify whether the system is fully loaded, a relatively coarse identification method is sufficient. If there is a need to identify whether liquid is being injected, a more precise and accurate identification method is required. Under the guidance described above, those skilled in the art can easily obtain a solution based on existing technologies, so it will not be described in detail here.

[0043] In the embodiments of this application, the logistics line and the transition compartment need to interact to realize the transfer of the material box. After the status of the material box is identified, the material box can be transferred in real time or the status of the material box can be detected to see if it meets the normal operation standards, so as to avoid safety hazards or waste of resources.

[0044] In the embodiments of this application, the logistics line can be a circulating conveying structure with multiple power rollers arranged on the conveying surface to realize the conveying of the material box; or it can be a circulating conveyor belt.

[0045] In one feasible embodiment, the logistics line is provided with a first branch and a second branch, which operate independently, corresponding to the feeding channel and the discharging channel, respectively. The first branch is set up between the logistics line and the feeding channel to transfer the material box loaded with empty battery cells or the empty material box on the logistics line to the feeding channel. The second branch is set up between the logistics line and the discharging channel to transfer the material box loaded with liquid-filled battery cells or the empty material box on the discharging channel to the logistics line.

[0046] For example, a branch plate is installed between the first branch and the material line. When a material box to be entered into the production line reaches the first branch, the branch plate opens, bringing the material box into the first branch for transport towards the feeding channel. When the branch plate closes, it can seal the first branch, and the connection point can be located on the upstream side wall. During this process, the turning adjustment of the material box is also completed. The second branch and the material line can be set up in the same way.

[0047] In another feasible embodiment, the feeding channel and the discharging channel can be directly connected to the logistics line to implement the functions of the first branch and the second branch. In this process, the operation of the feeding channel and the discharging channel are independently controlled, but the problem of the material box posture still needs to be solved. This problem can be solved by setting a steering roller surface in the logistics line. Specifically, the feeding channel and the discharging channel are connected to the steering roller surface. When the material box to be entered into the production line runs to the steering roller surface, the steering roller surface turns the material box and outputs it in the direction of the feeding channel, and then the feeding channel carries it for subsequent transportation.

[0048] For example, a steering roller surface can be set at the docking position (identification area). The steering roller surface includes at least two sets of power rollers, one set of power rollers in the normal operating direction and the other set of steering rollers. When a turn is required, the power rollers and steering rollers work together to drive the material box, thereby realizing the turning and conveying of the material box. Alternatively, multiple sets of power rollers that can synchronously adjust the conveying direction can be set in the steering roller surface. When operating normally, they are driven in the transport direction. When a turn is required, they are conveyed in the direction of the feeding channel, thereby completing the turn while conveying the material box to the feeding channel.

[0049] In the embodiments of this application, the transition chamber is connected to the liquid injection production line, and the transition chamber and the production line have a certain overlap area, thereby realizing the transfer of battery cells between the two. The material box, as a carrier, is also transferred in the transition chamber and returned to the logistics line.

[0050] In one specific embodiment, the transition chamber further includes a transfer channel for transferring the material box from the inlet channel to the outlet channel. The transfer channel is positioned between the inlet and outlet channels, forming a horizontal "U"-shaped layout. (See also...) Figure 1 Taking logistics line one as an example, the feeding channel is horizontally located on the lower side, and the discharging channel is horizontally located on the upper side. The outer ends of both are connected to logistics line one, while the transfer channel is vertically located on the inner ends of both. The three are connected in sequence to realize the transfer of the material box.

[0051] For example, the feeding channel, discharging channel, and transfer channel can all operate independently. The feeding channel is used to transport the material boxes to the transfer channel, where empty battery cells are removed from the shelves. At this time, the feeding channel can still receive material boxes fully loaded with empty battery cells and wait for the empty battery cells in the material boxes on the transfer channel to be removed. The empty material boxes are transferred to the discharging channel and finally returned to the logistics line. The packaging of liquid-filled battery cells is done in the same way.

[0052] In one feasible embodiment, the feeding channel extends into a docking channel, which operates synchronously with the discharging channel. The front end of the docking channel docks with the discharging channel, thereby transferring the material box onto the discharging channel.

[0053] For example, the feeding channel and the discharging channel operate independently, and multiple feasible battery unloading positions can be set on the docking channel, thereby allowing for the pre-storage of multiple fully loaded empty battery cell boxes; the empty boxes are transferred to the discharging channel and eventually returned to the logistics line. The packaging of liquid-filled battery cells follows the same principle.

[0054] In this application, the liquid injection production line sequentially includes a lower battery position, an empty package weighing module, a cell clamping module, a vacuum liquid injection module, a vacuum settling module, a vacuum packaging module, a cell lower clamping module, a liquid injection weighing module, an NG buffer module, a battery boxing position, the lower battery position being the feed end of the liquid injection production line, the battery boxing position being the discharge end of the liquid injection production line, and a central control module for generating material demand signals.

[0055] In the embodiments of this application, a first robotic arm is mounted in the lower battery compartment to grasp and transfer empty battery cells. The robotic arm grasps the empty battery cells in the material box and transfers them to the battery cell clamping module. The empty package weighing module includes a barcode scanner and a weighing sensor. The barcode scanner is located on one side of the running path of the first robotic arm, and the weighing sensor is located on the first robotic arm. The weighing sensor is electrically connected to the barcode scanner. The empty package weighing module is electrically connected to the vacuum liquid injection module. During vacuum liquid injection, the battery cells can be identified based on the empty package weighing data. Unqualified products are not vacuum liquid injectioned or packaged, but are only transferred along with the process.

[0056] In the embodiments of this application, a second robotic arm is mounted in the battery packaging position to grasp and transfer the liquid-filled battery cells, which grasps and transfers the liquid-filled battery cells on the battery cell clamping module to the material box; the liquid-filled weighing module includes a barcode scanner and a weighing sensor. The barcode scanner is located on one side of the running path of the second robotic arm, and the weighing sensor is located on the second robotic arm. The weighing sensor is electrically connected to the barcode scanner.

[0057] Please see Figure 2Based on the layout of the electrolyte injection production line of this application, empty battery cells are picked up from the material box by a first robotic arm at the lower battery position and transferred to the cell clamping module. During this process, barcode scanning and weight detection are performed. If the weight detection fails, electrolyte injection is not performed; only empty battery cells that pass the weight detection are injected. At the battery boxing position, electrolyte-injected battery cells are picked up from the cell clamping module by a second robotic arm and transferred to the material box. During this process, barcode scanning and weight detection are performed. If the weight detection fails, the unqualified battery cells are transferred to the NG buffer module; if the weight detection passes, the battery cells are boxed.

[0058] In this application, the NG cache module is used to temporarily store unqualified battery cells, which may specifically include empty-packed battery cells and liquid-filled battery cells. Since the screening of the two types of battery cells is at different stages, for the sake of convenience and timeliness, the following two implementation methods can be adopted: One approach involves using only one NG (Not From a Battery) buffer module for final cell screening and rejection. In this embodiment, the NG buffer module can be located at the cell packaging position, where cell screening and rejection are performed during barcode scanning. The NG buffer module can be electrically connected to both the liquid-filled weighing module and the empty-pack weighing module, thereby determining whether the cell is qualified through weight detection, regardless of whether it is an empty-pack cell or a liquid-filled cell. The liquid-filled weighing module and the empty-pack weighing module are electrically connected to a second robotic arm at the battery packaging position, allowing the barcode scanner to determine whether the cell's weight is qualified after scanning. The second robotic arm can then directly reject unqualified cells or package qualified cells.

[0059] Secondly, an additional empty-pack NG (Not From Good) buffer module is added to work in conjunction with the back-end NG buffer module to remove defective cells. Specifically, an empty-pack NG buffer module is installed between the lower battery compartment and the cell clamping module. The empty-pack weighing module is electrically connected to the empty-pack NG buffer module and to the first robotic arm at the lower battery compartment. The liquid filling weighing module is electrically connected to the NG buffer module and to the second robotic arm at the battery boxing compartment. In this configuration, the weight detection of empty-pack cells does not need to be synchronized to the back end of the production line and can be directly rejected without occupying the clamping positions of the cell clamping module, effectively improving the liquid filling ratio of the cells. At the same time, with buffer modules at both the front and back ends, and the cells in the buffer modules being of a single type, manual identification is not required, reducing safety hazards and increasing the buffer processing cycle of the production line.

[0060] It is understandable that the gripping position of the empty battery cell and the empty NG buffer module should both be within the operating range of the first robotic arm in the lower battery position; the gripping position of the liquid-filled battery cell and the NG buffer module should be evenly within the operating range of the second robotic arm in the battery box.

[0061] In the embodiments of this application, multiple liquid injection production lines are provided between the two logistics lines. A passageway can be set above or below the logistics lines to allow personnel to enter the liquid injection production lines for inspection, maintenance, or production visual inspection. Specifically, the passageway can be a downward stepped structure or an upward climbing ladder structure. For example, one end of the passageway passes over or under the logistics lines and is located between two adjacent liquid injection production lines; while the other end of the passageway is located outside the logistics lines, connecting the inside and outside of the logistics lines.

[0062] Based on the aforementioned pouch battery production system, this application also proposes a control strategy applicable to the system, enabling automated feeding and discharging operations between the material flow line and the liquid injection production line. Taking the liquid injection production line with a single attribute at both ends as an example, i.e., the right side is the feeding material flow line and the left side is the discharging material flow line. Of course, the material flow lines at both ends of the liquid injection production line can also have dual attributes, i.e., the attributes at both ends of multiple liquid injection production lines are not fixed, and the material flow lines on both sides undertake both feeding and discharging operations; in this case, a response attribute can be added to the response target, and the response attribute can be determined based on the weight of the material box and / or the shape characteristics of the battery cell.

[0063] See Figure 4 , Figure 4 This is a flowchart illustrating a control method for a pouch battery production system provided in an embodiment of this application. In this embodiment, the method includes: S101. Generate a material request sequence based on the material request signals from multiple liquid injection production lines, and generate an identification sequence based on the identification information of the identification area where multiple liquid injection production lines and logistics lines are connected.

[0064] The implementing entity of this application can be a logistics line and an identification device located in the identification area. Furthermore, it can cooperate with the central control module of the liquid injection production line or the production plan of the main control system of the liquid injection production line to issue material request signals. Specifically, the central control module of the liquid injection production line can monitor the material request progress or the material output progress and then trigger the material request signal; or the production plan of the main control system can issue material request signals to the liquid injection production line.

[0065] In this application, a separate processor can be set up to process the associated data of the material sequence, the identification sequence and the response target to meet the processing requirements of the response target in this application; or, it can be directly implemented by the host computer (main control system) of the logistics line or the liquid injection production line.

[0066] The control method proposed in this application is applicable to the above-mentioned soft-pack battery liquid injection production system, and the control method of this application is implemented based on its layout structure.

[0067] In this application, the liquid injection production line has feeding and discharging requirements. Feeding requires a material box fully loaded with empty battery cells to provide the liquid injection production line with unfilled battery cells. Discharging requires an empty material box to transfer the battery cells that have completed liquid injection out of the liquid injection production line.

[0068] In this application, both ends of the liquid injection production line are equipped with identification areas. The material demand signal of each liquid injection production line corresponds to the identification information of the corresponding identification area in sequence. Specifically, the material feeding identification unit corresponds to the identification information of the feeding identification unit, while the material discharging identification unit is used to detect whether the material discharging meets the requirements, such as whether the material box is empty or full. If an abnormality occurs, an abnormality alarm can be sent, and the staff can carry out maintenance.

[0069] Based on the coordination between the liquid injection production line and the logistics lines at both ends, the material request signal can specifically include the feeding signal of the empty packaged battery cell and the box entry signal of the liquid-injected battery cell. Correspondingly, the material request sequence includes the feeding sequence and the box entry sequence. Correspondingly, the identification area includes the feeding area and the discharging area, and the identification information includes the feeding identification in the feeding area and the box entry identification in the discharging area. Correspondingly, the identification sequence includes the feeding identification sequence and the box entry identification sequence.

[0070] It is understandable that the feeding signal, feeding sequence, and feeding identification sequence are all detection data on the right-side logistics line, and their response target is the material box loaded with empty battery cells. During implementation, they do not interfere with the left-side logistics line and can operate independently. Similarly, the box entry signal, box entry sequence, and box entry identification sequence are all detection data on the left-side logistics line, and their response target is the empty material box. During implementation, they do not interfere with the right-side logistics line and can operate independently.

[0071] When the two ends of the liquid injection production line have different attributes—that is, both the left and right logistics lines handle both feeding and discharging operations—a response attribute can be added to the response target. This attribute can be determined based on the weight of the material box and / or the shape characteristics of the battery cell. The corresponding sequence can then be assigned to specific objects.

[0072] In this application, the concept of a material demand signal is used as an example. When it is refined to the feeding and discharging, it can be implemented according to the above classification of parameters. Of course, the corresponding implementation methods will also be appropriately mentioned in the following examples.

[0073] In the embodiments of this application, step S101 specifically includes: The multiple liquid injection production lines are sequentially sorted, and the material demand signal on each liquid injection production line is associated with the sorted sequence number to generate the material demand sequence; Multiple liquid injection production lines are connected to the logistics line to form multiple identification areas. The identification information of the multiple identification areas is associated with the corresponding sorted sequence number to generate the identification sequence. The identification sequence includes only the most up-to-date identification information for the response target.

[0074] In this application, the sequence number of the material request signal in the material request sequence corresponds to the sequence number of the identification information in the identification sequence, which is based on the consistent layout structure. When it is necessary to respond to a material request signal on a certain liquid injection production line, the identification area before the sequence number corresponding to the material request signal can be used as the identification unit of the response target to determine the response target. However, since the response target needs to pass through multiple identification areas in sequence to reach the target liquid injection production line, in this case, in order to avoid repeated confirmation and identification, the identification information can be stored in the identification sequence in an overlay manner, storing only the latest identification information of the response target. This allows the nearest response target to be obtained according to the proximity principle when responding to the demand, instead of determining multiple response targets and causing confusion.

[0075] In the embodiments of this application, the generation of sequences is the same for both the infeed and outfeed material flow lines, and the two cyclical material flow lines have relatively independent sequences. When the two ends of the liquid injection production line have different attributes, the sequence numbers can be distinguished by attribute during sorting, namely the infeed sequence number and the outfeed sequence number, which can be responded to separately; the two can appear alternately in a regular manner or in an irregular manner, without affecting the attribute distinction, which is reflected in the layout structure as the spacing of the same attribute.

[0076] S102. When responding to a material signal in the material sequence, query the preceding information of the identification sequence and determine the response target.

[0077] In this application, the preceding information is the identification information before the identification area corresponding to the material request signal. Based on the sequence number of the material request signal, the identification information before the sequence number is queried in the identification sequence. The response target is a material box loaded with empty battery cells or an empty material box, corresponding to the feeding end and the discharging end, respectively.

[0078] In this embodiment of the application, multiple material boxes are circulated on the logistics line. The material boxes have multiple states. Taking the fixed attributes at both ends as an example, the material boxes on the right logistics line include empty and fully loaded empty battery cells, and its feeding target is the material box fully loaded with empty battery cells; the material boxes on the left logistics line include empty and fully loaded liquid-filled battery cells, and its feeding target is the empty material box.

[0079] In one possible implementation, step S102 specifically includes: When the material demand signal is detected, the serial number of the liquid injection production line corresponding to the material demand signal is traced. Based on the serial number, all identification information preceding the serial number in the identification sequence is attributed to the preceding information; the preceding information is queried to determine the response target that satisfies the material signal; The conditions for satisfying the response target of the material demand signal include: the identification information of the response target is an empty material box or the identification information of the response target is a material box with a full load of empty battery cells.

[0080] In this application, the generation of the material demand signal should be associated with the corresponding liquid injection production line to obtain basic sequence information. Based on the layout of the identification area, after determining the serial number of the production line, the corresponding identification area can be called as a secondary verification unit.

[0081] After tracing the serial number of the liquid injection production line based on the material demand signal, the serial number of the identification area in the identification sequence can be determined based on the serial number. The two are consistent or related. Since all the material boxes before this serial number will pass through the identification area corresponding to this serial number, the identification information before this serial number can be used as optional targets. These optional targets may be multiple or one. They may be empty material boxes or full empty battery cells. Taking the feeding end as an example, the response target is the material box full of empty battery cells.

[0082] During the query, multiple targets can be screened globally; when determining, the target can be selected based on the relative position between the identification area and the liquid injection production line according to the principle of proximity, and the target closest to the liquid injection production line will be used as the response target.

[0083] In this application, the logistics line is a single-line loop, and there are no multiple parallel processes; the identification area is also set in an orderly manner with fixed intervals, and the distance between it and the liquid injection production line is fixed; the position of the response target can be calculated based on the identification time and the operation data of the logistics line, thereby determining whether the response target has reached the corresponding liquid injection production line and the corresponding identification area.

[0084] It is understandable that, since the logistics line is in operation, the generation time of the material request signal is uncertain. When the material request signal is generated, it is not possible to accurately determine the location of the response target on the logistics line. Therefore, the principle of proximity should be subject to the restriction that the response target is before the identification area corresponding to the material request signal, so as to ensure that the response target has been determined and that the phenomenon of "missing the mark" has been avoided.

[0085] Because the logistics line is cyclical, but the liquid injection production line is only located on one side of the logistics line, after a response target is selected, there is a phenomenon of looping or a response target being repeatedly not selected. In this case, this application also proposes overloading for the response target, specifically including: The operating position of the response target is calculated based on the operation data of the logistics line and the identification time of the response target; When the response target reaches any of the identification areas, the identification information and serial number of that identification area are associated with the response target. Obtain the associated identification information and / or serial number of the response target; When the number of associated data matches the preset number of overloads, the associated data of the response target is cleared. The associated data includes identification information and serial number; the heavy load data is consistent with the number of identification zones set on the logistics line or the number of liquid injection production lines managed by the logistics line.

[0086] In this application, the working half-zone of the logistics line is equipped with an identification zone and connects to the liquid injection production line; the circulating half-zone does not connect to the liquid injection production line, but only carries the cyclical transport of material boxes. Under this premise, the determination of the response target can be calculated on a half-circle basis, that is, only the material boxes in the working half-zone are responded to, while the material boxes in the circulating half-zone are not responded to.

[0087] Since each material box will pass through various identification areas, the identification information of each identification area is associated with the material box. When the number of associations reaches the preset load quantity, it means that the material box has passed through the working half area. Before it has passed through the cycle half area, it does not have the corresponding preferred conditions to be determined. In this case, the association data of the material box can be cleared and it can be entered into the working half area as a new response target. The association data of the response target can be reloaded.

[0088] Implementing the overload measure for the response target can effectively record the identification information of the material box in multiple identification areas. Under normal circumstances, excluding possible fluctuation errors, multiple identification information should be the same. When the identification information of a certain identification area is different, it indicates that there is a problem with the identification device of the response target or the identification area. At this time, an alarm message can be issued, and the response target can be isolated and not participate in the response operation of the liquid injection production line.

[0089] Furthermore, verification can be performed based on the identification information of the next identification zone. If the next identification information is the same as the previous one, it indicates that the previous identification zone is faulty; otherwise, it indicates that there is a problem with the target being responded to. This is implemented under the premise that there are still a certain number (at least one) of identification zones available. If there are no subsequent identification zones, an alarm can be generated directly.

[0090] S103. When the response target runs to the identification area corresponding to the material demand signal, a second identification is performed, and the identified response target is transferred to the liquid injection production line corresponding to the material demand signal.

[0091] In the embodiments of this application, after the response target is determined, the system can wait for the response target to arrive. At this time, the system can use the identification area corresponding to the liquid injection production line that issued the material request signal to perform secondary identification and verify the response target. Once the verification is completed, the response target can be transferred to the liquid injection production line.

[0092] In one possible implementation, step S103 specifically includes: The identification information of the response target in the preceding information is obtained and defined as the response parameter; The running position of the response target on the logistics line is calculated based on the operation data of the logistics line and the identification time of the response target. When the response target moves to the identification area corresponding to the material signal, the response target is identified a second time; The identification information obtained from the secondary identification is defined as verification parameters; Determine whether the response parameters match the verification parameters: If there is no match, the next response target is determined by querying the preceding information of the identified sequence; If a match is found, a transfer signal is sent, and the liquid is transferred to the corresponding injection production line via the identified response target.

[0093] In this application, the identified response targets can be re-identified to prevent them from being replaced or developing defects during operation. When the result of the re-identification is consistent with the previous one, the identified response target can be directly transferred to the corresponding injection production line.

[0094] As a feasible embodiment, an inspection station can be added to the logistics line, and an initial identification area can be set up on the logistics line corresponding to the station, equipped with the same or different identification device as the identification area corresponding to the liquid injection production line, so as to calculate the initial position and subsequent running position of the response target.

[0095] Specifically, the testing station on the infeed logistics line can perform load testing, that is, to detect the weight or image features of the fully loaded empty battery cells in the box for subsequent identification and detection, and its serial number is the first order of the infeed identification sequence; the testing station on the outfeed logistics line can perform download testing, that is, to detect the empty box, and its serial number is the first order of the box entry identification sequence; if feasible, download testing can also be used to detect the box fully loaded with liquid-filled battery cells.

[0096] In this case, when overloading is implemented, the target already has the identification information of the initial identification area before entering the identification area corresponding to the liquid injection production line. Valid identification data can be found in the preceding information and secondary identification can be performed.

[0097] The following will be combined with the appendix Figure 5This application provides a detailed description of the control device for a pouch battery production system provided in its embodiments. It should be noted that the appendix... Figure 5 The control device of the pouch battery production system shown is used to execute the present application. Figure 1 The methods shown in the embodiments are for illustrative purposes only, illustrating the parts relevant to the embodiments of this application. For specific technical details not disclosed, please refer to this application. Figure 1 The example shown.

[0098] Please see Figure 2 , Figure 2 This is a schematic diagram of the structure of a control device for a pouch battery production system provided in an embodiment of this application. Figure 2 As shown, the device includes: Sequence generation module 201: Generates a material request sequence based on the material request signals from multiple liquid injection production lines, and generates an identification sequence based on the identification information of the identification area where multiple liquid injection production lines are connected to the logistics line; Target determination module 202: When responding to a material demand signal in the material demand sequence, it queries the preceding information of the identification sequence and determines the response target; the preceding information is the identification information before the identification area corresponding to the material demand signal; the response target is a material box loaded with empty battery cells or an empty material box; Response execution module 203: When the response target runs to the identification area corresponding to the material demand signal, it performs secondary identification and transfers the identified response target to the liquid injection production line corresponding to the material demand signal.

[0099] Those skilled in the art will clearly understand that the technical solutions of the embodiments of this application can be implemented by means of software and / or hardware. In this specification, "unit" and "module" refer to software and / or hardware that can independently complete or cooperate with other components to complete a specific function, wherein the hardware may be, for example, a field-programmable gate array (FPGA), an integrated circuit (IC), etc.

[0100] Each processing unit and / or module in the embodiments of this application can be implemented by an analog circuit that implements the functions described in the embodiments of this application, or by software that executes the functions described in the embodiments of this application.

[0101] See Figure 3 It shows a schematic diagram of the structure of an electronic device according to an embodiment of this application, which can be used to implement... Figure 1 The method in the illustrated embodiment. (As shown) Figure 3As shown, the electronic device 300 may include: at least one central processing unit 301, at least one network interface 304, user interface 303, memory 305, and at least one communication bus 302.

[0102] The communication bus 302 is used to enable communication between these components.

[0103] The user interface 303 may include a display screen and a camera. Optionally, the user interface 303 may also include a standard wired interface and a wireless interface.

[0104] The network interface 304 may optionally include a standard wired interface or a wireless interface (such as a Wi-Fi interface).

[0105] The central processing unit 301 may include one or more processing cores. The central processing unit 301 connects to various parts within the electronic device 300 using various interfaces and lines. It executes various functions of the terminal 300 and processes data by running or executing instructions, programs, code sets, or instruction sets stored in the memory 305, and by calling data stored in the memory 305. Optionally, the central processing unit 301 may be implemented using at least one hardware form of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), or Programmable Logic Array (PLA). The central processing unit 301 may integrate one or more of the following: a central processing unit (CPU), a graphics processing unit (GPU), and a modem. The CPU primarily handles the operating system, user interface, and applications; the GPU is responsible for rendering and drawing the content required for display; and the modem handles wireless communication. It is understood that the modem may also be implemented as a separate chip without being integrated into the central processing unit 301.

[0106] The memory 305 may include random access memory (RAM) or read-only memory. Optionally, the memory 305 may include a non-transitory computer-readable storage medium. The memory 305 can be used to store instructions, programs, code, code sets, or instruction sets. The memory 305 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as touch function, sound playback function, image playback function, etc.), instructions for implementing the above-described method embodiments, etc.; the data storage area may store data involved in the above-described method embodiments, etc. Optionally, the memory 305 may also be at least one storage device located remotely from the aforementioned central processing unit 301. Figure 3 As shown, the memory 305, which serves as a computer storage medium, may include an operating system, a network communication module, a user interface module, and program instructions.

[0107] exist Figure 3 In the illustrated electronic device 300, the user interface 303 is mainly used to provide an input interface for the user and to acquire user input data; while the central processing unit 301 can be used to call the system control application of the soft-pack battery production system stored in the memory 305, and specifically perform the following operations: A material request sequence is generated based on the material request signals from multiple liquid injection production lines, and an identification sequence is generated based on the identification information of the identification area where multiple liquid injection production lines and logistics lines are connected. When responding to a material request signal in the material request sequence, the preceding information of the identification sequence is queried to determine the response target; the preceding information is the identification information before the identification area corresponding to the material request signal; the response target is a material box loaded with empty battery cells or an empty material box; When the response target moves to the identification area corresponding to the material demand signal, a second identification is performed, and the identified response target is transferred to the liquid injection production line corresponding to the material demand signal.

[0108] This application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the above-described method. The computer-readable storage medium may include, but is not limited to, any type of disk, including floppy disks, optical disks, DVDs, CD-ROMs, microdrives, as well as magneto-optical disks, ROMs, RAMs, EPROMs, EEPROMs, DRAMs, VRAMs, flash memory devices, magnetic cards or optical cards, nanosystems (including molecular memory ICs), or any type of medium or device suitable for storing instructions and / or data.

[0109] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0110] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0111] In the several embodiments provided in this application, it should be understood that the disclosed apparatus can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some service interface; the indirect coupling or communication connection between devices or units may be electrical or other forms.

[0112] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0113] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0114] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage device (CMD). Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a memory and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned memory includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0115] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, which may include: a flash drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, etc.

[0116] The foregoing description is merely an exemplary embodiment of this disclosure and should not be construed as limiting the scope of this disclosure. Any equivalent changes and modifications made in accordance with the teachings of this disclosure shall still fall within the scope of this disclosure. Those skilled in the art will readily conceive of embodiments of this disclosure upon considering the specification and practicing the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not described herein. The specification and embodiments are to be considered exemplary only, and the scope and spirit of this disclosure are defined by the claims.

Claims

1. A liquid injection production system for soft-pack batteries, characterized in that, The system includes multiple liquid injection production lines and circulating logistics lines located at both ends of the multiple liquid injection production lines. Each end of the liquid injection production line is equipped with a transition chamber that is connected to the logistics lines at both ends. The logistics lines are equipped with material boxes for loading battery cells. The transition chamber includes a feeding channel and a discharging channel that are connected to the logistics lines, so that the material boxes located on the logistics lines enter from the feeding channel and return to the logistics lines from the discharging channel. The liquid injection production line includes, in sequence, a lower battery position, an empty package weighing module, a cell clamping module, a vacuum liquid injection module, a vacuum settling module, a vacuum packaging module, a cell lower clamping module, a liquid injection weighing module, an NG buffer module, a battery boxing position, and a central control module for generating material demand signals. An identification area is provided at the docking position between the logistics line and the liquid injection production line. An identification module for generating identification information is provided in the identification area. The identification module includes a feeding identification unit and a discharging identification unit. The feeding identification unit is located at the docking position between the feeding channel and the logistics line and is used for feeding identification of the feeding channel and discharging identification of the box entering the discharging channel. The discharge identification unit is located at the junction of the discharge channel and the logistics line.

2. The soft-pack battery electrolyte injection production system according to claim 1, characterized in that, The lower battery position is the feed end of the liquid injection production line, and the battery box position is the discharge end of the liquid injection production line; the logistics line includes logistics line one and logistics line two, logistics line one is located at the feed end of the liquid injection production line, and logistics line two is located at the discharge end of the liquid injection production line. The logistics line is equipped with a first branch and a second branch, which operate independently, corresponding to the feeding channel and the discharging channel, respectively. The first branch is set up between the logistics line and the feeding channel to transfer the material box loaded with empty battery cells or an empty material box on the logistics line to the feeding channel. The second branch is set up between the logistics line and the discharging channel to transfer the material box loaded with liquid-filled battery cells or an empty material box on the discharging channel to the logistics line.

3. The soft-pack battery electrolyte injection production system according to claim 1, characterized in that, The lower battery compartment is equipped with a first robotic arm that grips and transfers empty battery cells, which grips and transfers the empty battery cells in the material box to the battery cell clamping module; the battery box compartment is equipped with a second robotic arm that grips and transfers liquid-filled battery cells, which grips and transfers the liquid-filled battery cells on the lower battery cell clamping module to the material box.

4. The soft-pack battery electrolyte injection production system according to claim 3, characterized in that, Both the first and second robotic arms are equipped with weighing sensors and trigger sensors, and both the first and second robotic arms have barcode scanners on the side of their running paths facing the battery cell. The barcode scanners are used to identify the battery cell being grasped.

5. A control method for a soft-pack battery electrolyte injection production system, characterized in that, The control method, applied to the soft-pack battery electrolyte filling production system as described in claim 1, includes: A material request sequence is generated based on the material request signals from multiple liquid injection production lines, and an identification sequence is generated based on the identification information of the identification area where the multiple liquid injection production lines are connected to the logistics line. When responding to a material request signal in the material request sequence, the preceding information of the identification sequence is queried and the response target is determined; the preceding information is the identification information before the identification area corresponding to the material request signal; the response target is a material box loaded with empty battery cells or an empty material box; When the response target moves to the identification area corresponding to the material demand signal, a second identification is performed, and the identified response target is transferred to the liquid injection production line corresponding to the material demand signal.

6. The control method according to claim 5, characterized in that, The identification area is provided at both ends of the liquid injection production line, and the material demand signal corresponds to the identification information in sequence; The material request signals include the feeding signal for empty battery cells and the feeding signal for liquid-filled battery cells; the material request sequence includes the feeding sequence and the feeding sequence. The identification area includes a feeding area and a discharging area; the identification information includes feeding identification in the feeding area and box entry identification in the discharging area; the identification sequence includes a feeding identification sequence and a box entry identification sequence. The target of the response to the feeding signal, feeding sequence, and feeding identification sequence is the material box loaded with empty battery cells; The target of the response to the box feeding signal, box feeding sequence, and box feeding identification sequence is an empty box.

7. The control method according to claim 5, characterized in that, The phrase "generating a material request sequence based on material request signals from multiple liquid injection production lines, and generating an identification sequence based on identification information from the identification area where the multiple liquid injection production lines intersect with the logistics line" specifically includes: The multiple liquid injection production lines are sequentially sorted, and the material demand signal on each liquid injection production line is associated with the sorted sequence number to generate the material demand sequence; Multiple liquid injection production lines are connected to the logistics line to form multiple identification areas. The identification information of the multiple identification areas is associated with the corresponding sorted sequence number to generate the identification sequence. The identification sequence includes only the most up-to-date identification information for the response target.

8. The control method according to claim 7, characterized in that, The phrase "when responding to a material signal in the material sequence, querying the preceding information in the identification sequence and determining the response target" specifically includes: When the material demand signal is detected, the serial number of the liquid injection production line corresponding to the material demand signal is traced. Based on the serial number, all identification information preceding the serial number in the identification sequence is attributed to the preceding information; the preceding information is queried to determine the response target that satisfies the material signal; The conditions for satisfying the response target of the material demand signal include: the identification information of the response target is an empty material box or the identification information of the response target is a material box with a full load of empty battery cells.

9. The control method according to claim 7, characterized in that, It also includes the oversign overload of the response target: The operating position of the response target is calculated based on the operation data of the logistics line and the identification time of the response target; When the response target reaches any of the identification areas, the identification information and serial number of that identification area are associated with the response target. Obtain the associated identification information and / or serial number of the response target; When the number of associated data matches the preset number of overloads, the associated data of the response target is cleared. The associated data includes identification information and serial number; the number of heavy loads is consistent with the number of identification zones set on the logistics line or the number of liquid injection production lines under the jurisdiction of the logistics line.

10. The control method according to claim 5, characterized in that, The phrase "when the response target reaches the identification area corresponding to the material demand signal, a second identification is performed, and the identified response target is transferred to the liquid injection production line corresponding to the material demand signal" specifically includes: The identification information of the response target in the preceding information is obtained and defined as the response parameter; The running position of the response target on the logistics line is calculated based on the operation data of the logistics line and the identification time of the response target. When the response target moves to the identification area corresponding to the material signal, the response target is identified a second time; The identification information obtained from the secondary identification is defined as verification parameters; Determine whether the response parameters match the verification parameters: If there is no match, the next response target is determined by querying the preceding information of the identified sequence; If a match is found, a transfer signal is sent, and the liquid is transferred to the corresponding injection production line via the identified response target.

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