A cell impregnation device and a lithium battery manufacturing system

Abstract

This utility model provides a cell impregnation device and a lithium battery manufacturing system, relating to the field of lithium battery technology. The cell impregnation device includes a storage tank, an impregnation mesh frame, a lifting assembly, and a stirring assembly. An opening is provided on one side of the storage tank, which is filled with electrolyte. The impregnation mesh frame faces the opening of the storage tank. A movable part is movably connected to a fixed part, and the movable part reciprocates relative to the fixed part in a first direction. The end of the movable part away from the fixed part is connected to the impregnation mesh frame. The stirring assembly is located at the bottom of the storage tank. The cell impregnation device of this utility model injects electrolyte into the storage tank to achieve the purpose of impregnating the cell. Stirring the electrolyte in the storage tank accelerates the flow rate and improves the impregnation effect. After impregnation, the movable part moves the impregnation mesh frame in the height direction to remove the cell from the storage tank, facilitating removal and resting, thereby improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery technology, and more specifically, to a cell impregnation device and a lithium battery manufacturing system. Background Technology

[0002] During the manufacturing process of lithium batteries, the cells need to be immersed in an electrolyte to ensure that the electrolyte penetrates evenly and fully into the electrode materials inside the cell (such as the active materials of the positive and negative electrodes and the separator), forming a stable solid electrolyte interface film. This improves the initial efficiency of the battery, reduces irreversible capacity loss, and extends the battery's cycle life. However, common methods of immersing cells often result in low efficiency, and after immersion, it is inconvenient to retrieve and allow the cells to settle, leading to multiple handling operations and impacting operational efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a cell impregnation device and a lithium battery manufacturing system to improve the impregnation effect of the cells. After the cells are impregnated, they can be easily removed and left to stand, avoiding the inconvenience of manually handling the cells and thus improving work efficiency.

[0004] The first aspect of this utility model provides a battery cell wetting device, which includes:

[0005] A liquid storage tank, with an opening on one side, is used to fill the liquid storage tank with electrolyte;

[0006] An impregnated wire mesh frame is disposed facing the opening of the liquid storage tank;

[0007] A lifting assembly includes a fixed component and a movable component. The movable component is movably connected to the fixed component. The movable component reciprocates relative to the fixed component along a first direction. The end of the movable component away from the fixed component is connected to the impregnation mesh frame, so that the movable component drives the impregnation mesh frame to move into the liquid storage tank, or the impregnation mesh frame moves out of the liquid storage tank. The first direction is the height direction of the battery cell impregnation device.

[0008] A stirring assembly is disposed at the bottom of the liquid storage tank.

[0009] In one possible embodiment of this utility model, the movable part is provided with a first bending portion and a second bending portion, the first bending portion corresponds to the fixed part, the second bending portion corresponds to the impregnated mesh frame, and the first bending portion is located at the end of the second bending portion away from the impregnated mesh frame.

[0010] In one possible embodiment of this utility model, the fixing member includes a first transmission rod and a guide rail. The guide rail is arranged parallel to the first transmission rod along a first direction. The end of the movable member away from the impregnated mesh frame is slidably connected to the guide rail, and the movable member is sleeved on the first transmission rod. The movable member is threadedly connected to the first transmission rod.

[0011] In one possible embodiment of this utility model, there are two movable parts, which are respectively connected to the opposite sides of the impregnation frame. Correspondingly, there are two fixed parts, with each fixed part corresponding to one movable part.

[0012] In one possible embodiment of the present invention, the lifting assembly further includes a first driving member, which is connected to the first transmission rod in a driving connection.

[0013] In one possible embodiment of the present invention, the stirring assembly includes a second driving member, a transmission member, and a stirring member. The input end of the transmission member is drivenly connected to the second driving member, and the output end of the transmission member is drivenly connected to the stirring member.

[0014] In one possible embodiment of this utility model, the transmission component includes a second transmission rod, a turbine, and a worm. One end of the second transmission rod is connected to the second driving component, and the end of the second transmission rod away from the second driving component is fixedly connected to the worm. The second transmission rod and the worm rotate coaxially. The worm is meshed with the turbine, and the end of the turbine away from the worm is fixedly connected to the stirring component.

[0015] In one possible embodiment of this utility model, the axis of rotation of the stirring element is perpendicular to the axis of rotation of the second transmission rod.

[0016] In one possible embodiment of this utility model, a liquid level indicator is provided on the side wall of the liquid storage tank, which is used to monitor the liquid level height of the electrolyte.

[0017] A second aspect of this invention provides a lithium battery manufacturing system, including the cell impregnation device described in any of the above embodiments.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a cell immersion device and a lithium battery manufacturing system. Electrolyte is injected into the storage tank of the cell immersion device. A immersion mesh frame is used to place the cell. The movable part of the lifting assembly moves up and down relative to the fixed part, so that the movable part can move the immersion mesh frame through the opening into the storage tank, immersing the cell placed in the immersion mesh frame in the electrolyte in the storage tank, thus achieving the purpose of immersion. The stirring assembly is used to stir the electrolyte in the storage tank to accelerate the flow rate and improve the immersion effect of the cell. After the cell is immersed, the movable part moves the immersion mesh frame along the height direction to remove the cell from the storage tank, facilitating the removal and settling of the cell, avoiding the inconvenience of manual handling, and thus improving work efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the battery cell wetting device provided in some embodiments of this utility model;

[0021] Figure 2 It shows Figure 1 Schematic diagram of the structure of part A in the middle;

[0022] Figure 3 This is a schematic diagram of the lifting assembly of the battery cell wetting device provided in some embodiments of the present invention;

[0023] Figure 4 This is a schematic diagram of the transmission component of the battery cell wetting device provided in some embodiments of the present invention;

[0024] Figure 5 This is a schematic diagram of the liquid level component of the battery cell immersion device provided in some embodiments of this utility model.

[0025] Explanation of key component symbols;

[0026] 100-Cell immersion device; 110-Reservoir tank; 111-Opening; 120-Immersion mesh frame; 130-Lifting assembly; 131-Fixing component; 1311-First transmission rod; 1312-Guide rail; 132-Moving component; 1321-First bending part; 1322-Second bending part; 1323-Sleeve part; 133-First driving component; 140-Stirring assembly; 141-Second driving component; 142-Transmission component; 1421-Second transmission rod; 1422-Worm gear; 1423-Turbine; 1424-Housing; 143-Stirring component; 150-Leveling component; 151-Positioning component; X-First direction; Y-Second direction. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0034] refer to Figure 1 As shown, an embodiment of this application provides a battery cell wetting device 100, which includes a liquid storage tank 110, a wetting mesh frame 120, a lifting assembly 130, and a stirring assembly 140.

[0035] Specifically, in combination Figure 1 and Figure 2 As shown, an opening 111 is provided on one side of the liquid storage tank 110, and the liquid storage tank 110 is used to fill the electrolyte. The wetting mesh frame 120 is arranged facing the opening 111 of the liquid storage tank 110. The wetting mesh frame 120 has a mesh structure to facilitate the entry and exit of the electrolyte. The liquid storage tank 110 of the cell wetting device 100 is filled with electrolyte, and the wetting mesh frame 120 is used to place the cell.

[0036] In this embodiment, the lifting assembly 130 includes a fixed member 131 and a movable member 132. The movable member 132 is movably connected to the fixed member 131. The movable member 132 reciprocates relative to the fixed member 131 along a first direction X. One end of the movable member 132 away from the fixed member 131 is connected to the impregnation mesh frame 120, so that the movable member 132 drives the impregnation mesh frame 120 to move into the liquid storage tank 110, or the impregnation mesh frame 120 moves out of the liquid storage tank 110. The first direction X is the height direction of the battery cell impregnation device 100. The stirring assembly 140 is located at the bottom of the liquid storage tank 110. Correspondingly, the movable part 132 of the lifting assembly 130 moves up and down relative to the fixed part 131, so that the movable part 132 can drive the wetting mesh frame 120 to move through the opening 111 into the liquid storage tank 110, so that the battery cell placed in the wetting mesh frame 120 is immersed in the electrolyte in the liquid storage tank 110, thereby achieving the purpose of wetting the battery cell. The stirring assembly 140 is used to stir the electrolyte in the liquid storage tank 110 to accelerate the flow rate of the electrolyte and improve the wetting effect of the battery cell. After the battery cell is immersed, the movable part 132 drives the wetting mesh frame 120 to move along the height direction to remove the battery cell from the liquid storage tank 110, so as to facilitate the removal and standing of the battery cell, avoiding the inconvenience of manual handling of the battery cell, and thus improving the work efficiency.

[0037] In this invention, the battery cell is placed within a wetting mesh frame, which is then immersed in the electrolyte in a storage tank. This ensures that the electrolyte penetrates evenly and fully into the electrode materials (such as the active materials of the positive and negative electrodes and the separator) inside the battery cell, thereby forming a solid electrolyte interface film. However, removing the battery cell involves multiple attempts, making it inconvenient to handle after wetting. In this application, the wetting mesh frame 120 moves along its height, allowing the battery cell to be moved out of or placed inside the storage tank 110 without manual handling, facilitating easy removal and resting. Furthermore, the electrolyte flow rate can be low during resting, affecting the wetting effect on the battery cell. For example, at a specific temperature (such as 60°C), the battery cell needs to be immersed in the electrolyte for several hours to tens of hours to allow the electrolyte to diffuse into the pores inside the electrodes. This application incorporates a stirring assembly 140 to agitate the electrolyte in the storage tank 110, accelerating the electrolyte flow rate and improving the wetting effect on the battery cell.

[0038] like Figure 1 As shown, the battery cell immersion device 100 has a first direction X and a second direction Y, wherein the first direction X and the second direction Y are perpendicular to each other. For example, the first direction X refers to the length direction of the battery cell immersion device 100, and the second direction Y refers to the height direction of the battery cell immersion device 100. It is understood that the above definitions are only for ease of understanding the relative positional relationships of the various parts in the battery cell immersion device 100 and should not be construed as limiting this application.

[0039] In one embodiment, alternatively, such as Figure 1 and Figure 2 As shown, the fixing member 131 includes a first transmission rod 1311 and a guide rail 1312. The guide rail 1312 is arranged parallel to the first transmission rod 1311 along the first direction X. The movable member 132, at one end away from the impregnating mesh frame 120, is slidably connected to the guide rail 1312. The movable member 132 is sleeved on the first transmission rod 1311, and the movable member 132 is threadedly connected to the first transmission rod 1311. In other words, the first transmission rod 1311 carries... The movable component 132 reciprocates along the first direction X, so that the movable component 132 can drive the wetting mesh frame 120 into the liquid storage tank 110, or the movable component 132 can drive the wetting mesh frame 120 out of the liquid storage tank 110. During the movement of the movable component 132, the guide rail 1312 plays a supporting role for the movable component 132 and regulates the movement trajectory of the movable component 132. During the cell wetting process, the height of the wetting mesh frame 120 is adjusted by the movable component 132 to control the electrolyte penetration.

[0040] Optionally, such as Figure 3 As shown, the lifting assembly 130 also includes a first driving member 133, which is connected to the first transmission rod 1311. The first driving member 133 drives the first transmission rod 1311 to rotate, causing the movable member 132 to rise or fall along the first transmission rod 1311.

[0041] In one embodiment, alternatively, referencing Figure 1 and Figure 4 As shown, the stirring assembly 140 includes a second driving member 141, a transmission member 142, and a stirring member 143. The input end of the transmission member 142 is connected to the second driving member 141, and the output end of the transmission member 142 is connected to the stirring member 143. The second driving member 141 drives the stirring member 143 to rotate and stir the electrolyte through the transmission member 142, ensuring that the electrolyte has a certain flow rate.

[0042] In summary, the electrolyte is injected into the storage tank 110 of the battery cell immersion device 100, and the battery cell is placed in the immersion mesh frame 120. The movable part 132 of the lifting assembly 130 moves up and down relative to the fixed part 131, so that the movable part 132 can move the immersion mesh frame 120 through the opening 111 into the storage tank 110, so that the battery cell placed in the immersion mesh frame 120 is immersed in the electrolyte in the storage tank 110, thereby achieving the purpose of immersing the battery cell. The stirring assembly 140 is used to stir the electrolyte in the storage tank 110 to accelerate the flow rate and improve the immersion effect of the battery cell. After the battery cell is immersed, the movable part 132 moves the immersion mesh frame 120 along the height direction to remove the battery cell from the storage tank 110, so that the battery cell can be taken out and left to stand, avoiding the inconvenience of manually handling the battery cell, thereby improving the work efficiency.

[0043] refer to Figures 1 to 3 As shown, an embodiment of this application provides another battery cell wetting device 100, which includes a liquid storage tank 110, a wetting mesh frame 120, a lifting assembly 130, and a stirring assembly 140.

[0044] Specifically, in combination Figure 1 and Figure 2 As shown, an opening 111 is provided on one side of the liquid storage tank 110, and the liquid storage tank 110 is used to fill the electrolyte. The wetting mesh frame 120 is arranged facing the opening 111 of the liquid storage tank 110. The lifting assembly 130 includes a fixed member 131 and a movable member 132. The movable member 132 is movably connected to the fixed member 131. The movable member 132 reciprocates relative to the fixed member 131 along a first direction X. The end of the movable member 132 away from the fixed member 131 is connected to the wetting mesh frame 120, so that the movable member 132 drives the wetting mesh frame 120 to move into the liquid storage tank 110, or the wetting mesh frame 120 moves out of the liquid storage tank 110. The first direction X is the height direction of the cell wetting device 100. The stirring assembly 140 is located at the bottom of the storage tank 110. Correspondingly, electrolyte is injected into the storage tank 110 of the cell immersion device 100. The immersion mesh frame 120 is used to place the cell. The movable part 132 of the lifting assembly 130 moves up and down relative to the fixed part 131, so that the movable part 132 can drive the immersion mesh frame 120 to move through the opening 111 into the storage tank 110, so that the cell placed in the immersion mesh frame 120 is immersed in the electrolyte in the storage tank 110, thereby achieving the purpose of immersing the cell. The stirring assembly 140 is used to stir the electrolyte in the storage tank 110 to accelerate the electrolyte flow rate and improve the immersion effect of the cell. After the cell is immersed, the movable part 132 drives the immersion mesh frame 120 to move along the height direction to remove the cell from the storage tank 110, so that the cell can be taken out and left to stand, avoiding the inconvenience of manually handling the cell and thus improving work efficiency.

[0045] In one embodiment, alternatively, referencing Figure 1 As shown, the movable member 132 is provided with a first bending portion 1321 and a second bending portion 1322. The first bending portion 1321 corresponds to the fixed member 131, and the second bending portion 1322 corresponds to the impregnation mesh frame 120. The first bending portion 1321 is located at the end of the second bending portion 1322 away from the impregnation mesh frame 120. The first bending portion 1321 and the second bending portion 1322 formed by the movable member 132 cause the movable member 132 to drive the impregnation mesh frame 120 to move. The movable member 132 moves up and down relative to the fixed member 131. When the movable member 132 moves into position, the first bending portion 1321 and the second bending portion 1322 of the movable member 132 facilitate the impregnation mesh frame 120 to be fully immersed in the liquid storage tank 110, ensuring the impregnation effect of the battery cells in the impregnation mesh frame 120. The first bending portion 1321 and the second bending portion 1322 serve to drive the impregnation mesh frame 120 to move up and down. Furthermore, when the impregnating wire mesh frame 120 is immersed in the liquid storage tank 110, the first bending portion 1321 is located outside the liquid storage tank 110, and the second bending portion 1322 extends into the liquid storage tank 110. The second bending portion 1322 ensures that the shape of the movable part 132 can be adapted to the liquid storage tank 110, and will not affect or hinder the movement of the impregnating wire mesh frame 120, thus achieving better technical results.

[0046] In one embodiment, alternatively, such as Figure 1 and Figure 2 As shown, the fixing member 131 includes a first transmission rod 1311 and a guide rail 1312. The guide rail 1312 is arranged parallel to the first transmission rod 1311 along the first direction X. The end of the movable member 132 away from the impregnation mesh frame 120 is slidably connected to the guide rail 1312, and the movable member 132 is sleeved on the first transmission rod 1311. The movable member 132 is threadedly connected to the first transmission rod 1311. In other words, the first transmission rod 1311 drives the movable member 132 to reciprocate along the first direction X, so that the movable member 132 can drive the impregnation mesh frame 120 to be immersed into the liquid storage tank 110, or the movable member 132 can drive the impregnation mesh frame 120 to be moved out of the liquid storage tank 110. During the movement of the movable member 132, the guide rail 1312 plays a supporting role for the movable member 132 and plays a role in regulating the movement trajectory of the movable member 132. During the cell impregnation process, the height of the impregnation mesh frame 120 is adjusted by the movable member 132 to control the electrolyte penetration.

[0047] Furthermore, the movable part 132 includes a sleeve portion 1323, which is sleeved on the first transmission rod 1311 and threadedly connected to the first transmission rod 1311. When the first transmission rod 1311 rotates, the sleeve portion 1323 and the first transmission rod 1311 move relative to each other, so that the first transmission rod 1311 can drive the sleeve portion 1323 to move up and down.

[0048] Optionally, combined Figure 1 and Figure 3 As shown, there are two movable parts 132, which are respectively connected to the opposite sides of the impregnation frame 120. Correspondingly, there are two fixed parts 131, each of which corresponds to one movable part 132. That is, the two movable parts 132 work together to drive the impregnation frame 120 to move up and down, share the weight of the impregnation frame 120, ensure the synchronicity of the movement of the impregnation frame 120, and avoid the impregnation frame 120 from tilting or getting stuck when moving due to a movable part 132 on one side. Each movable part 132 cooperates with the fixed part 131 for transmission to ensure the stability of the movement.

[0049] Optionally, such as Figure 3 As shown, the lifting assembly 130 also includes a first driving member 133, which is connected to the first transmission rod 1311. The first driving member 133 drives the first transmission rod 1311 to rotate, causing the movable member 132 to rise or fall along the first transmission rod 1311. For example, the first transmission rod 1311 is a lead screw or a lead screw, and the first driving member 133 can be a drive motor, a drive cylinder, or a servo motor. It is understood that there can be two first driving members 133, each driving the movable members 132 on both sides to move relative to each other. A control system is used to ensure synchronous transmission of the first driving members 133 on both sides. For example, a Hall sensor or a grating ruler can be integrated on the movable member 132 to monitor displacement differences in real time and dynamically adjust the drive current through a PID algorithm. Of course, there can also be only one first driving member 133, where one first driving member 133 drives one movable member 132 to move relative to each other through the first transmission rod 1311, and the movable member 132 on the other side only slides relative to each other through the guide rail 1312. Further details are omitted here.

[0050] In one embodiment, alternatively, referencing Figure 1 and Figure 4 As shown, the stirring assembly 140 includes a second driving member 141, a transmission member 142, and a stirring member 143. The input end of the transmission member 142 is connected to the second driving member 141, and the output end of the transmission member 142 is connected to the stirring member 143. The second driving member 141 drives the stirring member 143 to rotate and stir the electrolyte through the transmission member 142, ensuring that the electrolyte has a certain flow rate. For example, the second driving member 141 can be a servo motor, a stepper motor, or a geared motor.

[0051] Optionally, such as Figure 4As shown, the transmission component 142 includes a second transmission rod 1421, a turbine 1423, and a worm gear 1422. One end of the second transmission rod 1421 is connected to the second driving component 141, and the end of the second transmission rod 1421 away from the second driving component 141 is fixedly connected to the worm gear 1422. The second transmission rod 1421 and the worm gear 1422 rotate coaxially. The worm gear 1422 is meshed with the turbine 1423, and the end of the turbine 1423 away from the worm gear 1422 is fixedly connected to the stirring component 143. In other words, the second transmission rod 1421 drives the stirring component 143 to rotate through the worm gear 1422-turbine gear 1423 structure. The worm gear 1422 and the turbine gear 1423 have a large transmission ratio, which can significantly reduce the rotational speed and increase the output torque. It is suitable for stirring electrolytes. In reverse transmission, it is difficult to drive due to high frictional resistance, which can avoid the uncontrolled rotation of the stirring component 143 caused by the weight of the material or the reverse torque. Furthermore, the transmission component 142 also includes a housing 1424, with the turbine 1423 and worm gear 1422 both disposed within the housing 1424. One end of the second transmission rod 1421 passes through the housing 1424 and is fixedly connected to the worm gear 1422. The stirring component 143 passes through the housing 1424 and is fixedly connected to the end of the turbine 1423 away from the worm gear 1422. For example, the stirring component 143 passes through the liquid storage tank 110 and extends into the liquid storage tank 110.

[0052] Furthermore, the axis of rotation of the stirring element 143 is perpendicular to the axis of rotation of the second transmission rod 1421, and the worm gear 1422 and the turbine 1423 achieve spatial rotation, so that the axis of rotation of the stirring element 143 is perpendicular to the axis of rotation of the second transmission rod 1421.

[0053] In one embodiment, alternatively, referencing Figure 5 As shown, a liquid level indicator 150 is provided on the side wall of the storage tank 110. The liquid level indicator 150 is used to monitor the liquid level of the electrolyte so as to add electrolyte as required. For example, the liquid level indicator 150 is provided with a positioning element 151. The liquid level indicator 150 is fixedly installed on the side wall of the storage tank 110 by the positioning element 151, which facilitates disassembly and maintenance.

[0054] An embodiment of this utility model also provides a lithium battery manufacturing system, which includes the cell immersion device 100 in the above embodiment. The lithium battery manufacturing system including the cell immersion device 100 has all the beneficial effects of the cell immersion device 100, which will not be described in detail here.

[0055] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limitations; therefore, other examples of exemplary embodiments may have different values.

[0056] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A battery cell wetting device, characterized in that, include: A liquid storage tank, with an opening on one side, is used to fill the liquid storage tank with electrolyte; An impregnated wire mesh frame is disposed facing the opening of the liquid storage tank; A lifting assembly includes a fixed component and a movable component. The movable component is movably connected to the fixed component. The movable component reciprocates relative to the fixed component along a first direction. The end of the movable component away from the fixed component is connected to the impregnation mesh frame, so that the movable component drives the impregnation mesh frame to move into the liquid storage tank, or the impregnation mesh frame moves out of the liquid storage tank. The first direction is the height direction of the battery cell impregnation device. A stirring assembly is disposed at the bottom of the liquid storage tank.

2. The cell wetting apparatus according to claim 1, characterized in that, The movable part is provided with a first bending part and a second bending part. The first bending part corresponds to the fixed part, and the second bending part corresponds to the impregnated mesh frame. The first bending part is located at the end of the second bending part away from the impregnated mesh frame.

3. The cell wetting apparatus according to claim 1, characterized in that, The fixing component includes a first transmission rod and a guide rail. The guide rail is arranged parallel to the first transmission rod along a first direction. The end of the movable component away from the impregnated mesh frame is slidably connected to the guide rail, and the movable component is sleeved on the first transmission rod. The movable component is threadedly connected to the first transmission rod.

4. The cell wetting apparatus according to claim 3, characterized in that, The number of movable parts is two, and the two movable parts are respectively connected to the opposite sides of the impregnated mesh frame. The number of corresponding fixed parts is two, and each fixed part corresponds to one movable part.

5. The cell wetting apparatus according to claim 3, characterized in that, The lifting assembly further includes a first driving component, which is connected to the first transmission rod.

6. The cell wetting apparatus according to any one of claims 1 to 5, characterized in that, The stirring assembly includes a second driving component, a transmission component, and a stirring component. The input end of the transmission component is connected to the second driving component, and the output end of the transmission component is connected to the stirring component.

7. The cell wetting apparatus according to claim 6, characterized in that, The transmission component includes a second transmission rod, a turbine, and a worm. One end of the second transmission rod is connected to the second driving component, and the end of the second transmission rod away from the second driving component is fixedly connected to the worm. The second transmission rod and the worm rotate coaxially. The worm meshes with the turbine, and the end of the turbine away from the worm is fixedly connected to the stirring component.

8. The cell wetting apparatus according to claim 7, characterized in that, The axis of rotation of the stirring component is perpendicular to the axis of rotation of the second transmission rod.

9. The cell wetting apparatus according to any one of claims 1 to 5, characterized in that, A liquid level indicator is provided on the side wall of the storage tank, which is used to monitor the liquid level of the electrolyte.

10. A lithium battery manufacturing system, characterized in that, Includes the cell wetting apparatus according to any one of claims 1 to 9.

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