Battery slurry transfer device and battery production system

Abstract

The utility model discloses a battery slurry transfer device and a battery production system, the battery slurry transfer device is used for transferring battery slurry between a stirring station and a coating machine in battery production, the battery slurry transfer device comprises a transfer tank, a moving device and a power supply device, and a containing cavity for containing the battery slurry is formed in the transfer tank; a stirring device is arranged on the transfer tank, the stirring device is used for stirring the battery slurry in the containing cavity, a slurry inlet and a slurry outlet are formed in the transfer tank, the slurry inlet is used for receiving the battery slurry from a stirring station, and the slurry outlet is used for conveying the battery slurry in the containing cavity to the coating machine; the moving device is used for bearing the transfer tank to move between the mixing plant and the coating machine, and the power supply device synchronously moves along with the transfer tank and supplies power to the mixing plant. By means of the battery slurry transfer device, the production changing risk can be reduced, slurry waste is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to a battery slurry transfer device and a battery production system. Background Art

[0002] The lithium battery production system includes a mixing station and a coating machine, and a battery slurry delivery pipeline is built between the mixing station and the coating machine. When production needs to be changed (for example, lithium carbonate materials are replaced with ternary lithium materials) or the pipeline is blocked, the battery slurry in the pipeline needs to be cleaned. Production needs to be stopped during the cleaning process, and the cleaned slurry cannot be used again, resulting in a waste of material costs, labor costs and time costs. In addition, if the battery slurry in the pipeline is not cleaned up, it will cause contamination of new slurry, resulting in greater waste.

[0003] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, therefore, it may include information that does not constitute the prior art known to ordinary technicians in this field. Summary of the invention

[0004] In view of the problems pointed out in the background technology, the utility model proposes a battery slurry transfer device and a battery production system to reduce the risk of production change, reduce slurry waste, and improve production efficiency.

[0005] In order to achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions:

[0006] In some embodiments, a battery slurry transfer device is provided for transferring battery slurry between a mixing station and a coating machine in battery production, comprising:

[0007] A transfer tank having a holding cavity for holding battery slurry formed therein, a stirring device disposed on the transfer tank, the stirring device being configured to stir the battery slurry in the holding cavity, a slurry inlet and a slurry outlet disposed on the transfer tank, the slurry inlet being configured to receive the battery slurry from the stirring station, and the slurry outlet being configured to transport the battery slurry in the holding cavity to the coating machine;

[0008] A moving device, which is configured to carry the transfer tank and move between the mixing station and the coating machine;

[0009] A power supply device is configured to move synchronously with the transfer tank to supply power to the stirring device.

[0010] In some embodiments, a support frame is further included, the support frame serving as a support carrier of the transfer tank, and the transfer tank is detachably connected to the support frame;

[0011] The moving device is configured to carry the support frame and the transfer tank and move between the mixing station and the coating machine;

[0012] The power supply device is arranged on the supporting frame.

[0013] In some embodiments, the mobile device is a latent AGV, an identification code is set at the bottom of the support frame, the AGV carries the support frame to move, and the AGV can identify the identification code.

[0014] In some embodiments, a control box is further included, wherein the control box is disposed on the support frame, and the control box includes a wireless communication module, and the wireless communication module communicates with the AGV.

[0015] In some embodiments, a fixed cover and a movable cover are provided on the top of the transfer tank, the fixed cover is fixedly connected to the top of the transfer tank, the fixed cover is rotatably connected to the movable cover, a locking piece is provided between the movable cover and the transfer tank, and the stirring device and the slurry inlet are provided on the fixed cover.

[0016] In some embodiments, a liquid level sensor is disposed on the fixed cover, and the liquid level sensor is used to detect the liquid level of the battery slurry in the containing cavity.

[0017] In some embodiments, an observation window is provided on the fixed cover.

[0018] In some embodiments, an extension portion is provided on the tank body of the transfer tank, the extension portion is detachably connected to the support frame, and casters are provided at the bottom of the tank body.

[0019] In some embodiments, the support frame includes a lower support frame and an upper support frame, a first support column is arranged at the bottom of the lower support frame, and a second support column is arranged between the lower support frame and the upper support frame;

[0020] The transfer tank is detachably arranged on the upper support frame, and the moving device carries the lower support frame.

[0021] In some embodiments, a mounting platform is provided on the lower support frame, and a power pump is provided on the mounting platform. The power pump is used to provide power for the slurry transportation between the slurry inlet and the mixing station, and the power pump is used to provide power for the slurry transportation between the slurry outlet and the coating machine.

[0022] In some embodiments, a battery production system is provided, including a stirring area, a coating area and a storage area, wherein a plurality of the stirring stations are arranged in the stirring area, the coating area is arranged in the coating machine, and the battery slurry transfer device as described above is placed in the storage area.

[0023] Compared with the prior art, the advantages and positive effects of the utility model are:

[0024] The battery production system disclosed in the present application utilizes a battery slurry transfer device to realize the transfer of battery slurry between a mixing station and a coating machine. The transfer tank is used to replace the traditional delivery pipeline, which does not generate the risk of pipeline blockage and reduces the risk of production change; the transfer tank is cleaned during production change to reduce slurry waste. During the transfer process, the battery slurry in the transfer tank is stirred by a stirring device to prevent the battery slurry from being left still for a long time during the transfer process and causing precipitation.

[0025] The power supply device is provided so that the battery slurry transfer device is self-powered and does not require an external power supply, which facilitates the movement of the transfer tank. In addition, during the movement of the transfer tank, the power supply device supplies power to the stirring device to achieve non-stop stirring during the transfer process.

[0026] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0028] Figure 1 is a schematic diagram of a battery production system according to some embodiments;

[0029] Figure 2 is a schematic diagram of a battery slurry transport device according to some embodiments;

[0030] Figure 3 is a schematic diagram of a transfer tank according to some embodiments;

[0031] Figure 4 is a schematic diagram of a support frame according to some embodiments;

[0032] Reference numerals:

[0033] 10. Mixing area; 11. Mixing station;

[0034] 20. Coating area; 21. Coating machine;

[0035] 30. Storage area; 31. First storage area; 32. Second storage area;

[0036] 40. Transfer components;

[0037] 100, transfer tank; 110, tank body; 121, fixed cover; 122, movable cover; 123, handle; 124, hinge; 125, locking piece; 130, extension; 140, support foot; 141, caster; 150, stirring device; 160, liquid level sensor; 170, observation window; 180, breathing valve; 191, slurry inlet; 192, slurry outlet;

[0038] 200, support frame; 210, upper support frame; 220, lower support frame; 230, first support column; 240, second support column; 250, mounting platform;

[0039] 300, control box;

[0040] 400. Mobile device;

[0041] 500. Power pump. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0043] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0044] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0045] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0047] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0048] The present application provides a battery production system, referring to Figure 1 , including a stirring area 10, in which a plurality of stirring stations 11 are arranged. The stirring stations 11 are used to stir the battery slurry.

[0049] The battery production system includes a coating area 20 in which a coater 21 is disposed.

[0050] The battery slurry needs to be transferred between the mixing station 11 and the coating machine 21 , and the battery slurry stirred in the mixing station 11 is transported to the coating machine 21 by a transfer device.

[0051] In the prior art, a delivery pipeline is built between the mixing station 11 and the coating machine 21, and the battery slurry is transported from the mixing station 11 to the coating machine 21 through the delivery pipeline. When production needs to be changed or the pipeline is blocked, the battery slurry in the delivery pipeline needs to be cleaned. The production needs to be stopped during the cleaning process, and the cleaned slurry cannot be used again, resulting in a waste of material costs, labor costs and time costs.

[0052] In order to solve this technical problem, the present application proposes a battery slurry transfer device for transferring battery slurry between a mixing station 11 and a coating machine 21 .

[0053] The battery slurry transfer device includes a transfer tank 100, such as Figure 3 As shown, the transfer tank 100 includes a tank body 110, and a containing cavity for containing battery slurry is formed in the tank body 110. A cover is provided on the top of the tank body 110, and the cover is used to close or open the containing cavity.

[0054] The transfer tank 100 includes a stirring device 150, which is used to stir the battery slurry in the containing cavity. During the process of transferring the battery slurry using the transfer tank 100, the stirring device 150 stirs the battery slurry in the containing cavity to prevent the battery slurry from being left still for a long time during the transfer process and causing precipitation.

[0055] The transfer tank 100 is provided with a slurry inlet 191 , and the slurry inlet 191 is used to receive the battery slurry from the mixing station 11 .

[0056] The transfer tank 100 is provided with a slurry outlet 192 , and the slurry outlet 192 is used to transport the battery slurry in the containing cavity to the coating machine 21 .

[0057] In other words, the transfer tank 100 is moved to a position close to the mixing station 11, and the slurry outlet 192 of the mixing station 11 is connected to the slurry inlet 191 on the transfer tank 100 through a pipeline. A power pump 500 is connected to this section of the pipeline. Under the power of the power pump 500, the battery slurry in the mixing station 11 is injected into the transfer tank 100 through the slurry inlet 191.

[0058] The transfer tank 100 is moved to a position close to the coater 21 , and the slurry inlet 191 of the coater 21 is connected to the slurry outlet 192 on the transfer tank 100 through a pipeline. A power pump 500 is connected to this section of the pipeline. Under the power of the power pump 500 , the battery slurry in the transfer tank 100 is injected into the coater 21 .

[0059] The battery slurry transfer device includes a moving device 400 , which is used to carry the transfer tank 100 and move between the mixing station 11 and the coating machine 21 .

[0060] Specifically, when the battery slurry in the mixing station 11 needs to be transferred to the coating machine 21, the mobile device 400 carries the support frame 200 and the transfer tank 100 and moves to the mixing station 11;

[0061] The slurry outlet of the mixing station 11 is connected to the slurry inlet 191 on the transfer tank 100 through a pipeline, and a power pump 500 is connected to the pipeline. Under the power of the power pump 500, the battery slurry in the mixing station 11 is injected into the transfer tank 100 through the slurry inlet 191;

[0062] The moving device 400 carries the transfer tank 100 filled with battery slurry and moves to the coating machine 21. During the movement, the stirring device 150 stirs the battery slurry in the transfer tank 100 to prevent the battery slurry from settling.

[0063] The slurry inlet of the coating machine 21 is connected to the slurry outlet 192 on the transfer tank 100 through a pipeline, and a power pump 500 is connected to the pipeline. Under the power of the power pump 500, the battery slurry in the transfer tank 100 is injected into the coating machine 21;

[0064] The mobile device 400 carries the empty transfer tank 100 back to the waiting area to prepare for the next transfer task.

[0065] When it is necessary to change the production, the interior of the transfer tank 100 will be cleaned.

[0066] The battery slurry transfer device includes a power supply device, which moves synchronously with the transfer tank 100 and is used to supply power to the stirring device 150 .

[0067] The battery production system uses a battery slurry transfer device to transfer the battery slurry between the mixing station 11 and the coating machine 21. The transfer tank 100 is used to replace the traditional delivery pipeline, which does not cause the risk of pipeline blockage and reduces the risk of production change. The transfer tank 100 is cleaned during production change to reduce slurry waste. During the transfer process, the stirring device 150 is used to stir the battery slurry in the transfer tank 100 to prevent the battery slurry from being left still for a long time during the transfer process and causing precipitation.

[0068] The power supply device is provided so that the battery slurry transfer device is self-powered and does not require an external power supply, which facilitates the movement of the transfer tank 100. In addition, during the movement of the transfer tank 100, the power supply device supplies power to the stirring device 150 to achieve non-stop stirring during the transfer process.

[0069] In some embodiments, the battery slurry transfer device includes a support frame 200, such as Figure 2 As shown, the support frame 200 serves as a supporting carrier of the transfer tank 100 , and the transfer tank 100 and the support frame 200 are detachably connected.

[0070] The moving device 400 is configured to carry the support frame 200 and the transfer tank 100 to move between the mixing station 11 and the coating machine 21. The power supply device is arranged on the support frame 200 to achieve synchronous movement of the power supply device and the transfer tank 100.

[0071] When the battery slurry in the mixing station 11 needs to be transferred to the coating machine 21, the transfer tank 100 is placed on the support frame 200, and the two are fixed to maintain the stability of the transfer tank 100 on the support frame 200, and then the transfer tank 100 and the support frame 200 are transferred by the moving device 400.

[0072] When it is necessary to change the product, the transfer tank 100 is removed from the support frame 200 to facilitate cleaning of the transfer tank 100.

[0073] In some embodiments, the battery production system includes a storage area 30 in which a battery slurry transfer device is placed.

[0074] Specifically, a first storage area 31 and a second storage area 32 are provided in the storage area 30 . The transfer tank 100 and the support frame 200 are placed in the first storage area 31 , and the moving device 400 is placed in the second storage area 32 .

[0075] In some embodiments, the transfer tank 100 and the support frame 200 constitute a transfer assembly 40, and a plurality of transfer assemblies 40 are placed in the first storage area 31. Multiple transfer tanks 100 are used for the transfer of battery slurries with different formulations, which helps to achieve rapid production change.

[0076] In some embodiments, the mobile device 400 is a latent AGV, an identification code is set at the bottom of the support frame 200, and the AGV carries the support frame 200 to move, and the AGV can identify the identification code.

[0077] A charging area is provided in the second storage area 32, and the charging area is used to charge the AGV.

[0078] When the battery slurry in the mixing station 11 needs to be transferred to the coating machine 21, the latent AGV starts from the charging area and moves to the bottom of the support frame 200 according to the set trajectory route, identifies the identification code at the bottom of the support frame 200, and binds the information of the transfer tank 100;

[0079] Then the AGV carries the support frame 200 and the transfer tank 100 and moves to the mixing station 11 according to the set trajectory, and the battery slurry in the mixing station 11 is injected into the transfer tank 100;

[0080] After receiving the full material, the AGV carries the support frame 200 and the fully loaded transfer tank 100 and moves to the coating machine 21 according to the set trajectory, and the battery slurry in the transfer tank 100 is injected into the coating machine 21;

[0081] Then the AGV moves to the first storage area 31 along the set trajectory, carrying the support frame 200 and the empty transfer tank 100, puts down the support frame 200 and the transfer tank 100, and the AGV executes the next transfer command or returns to the charging area according to the instructions.

[0082] In some embodiments, the battery slurry transfer device includes a control box 300, which is fixed to the support frame 200 by screws and other fasteners. The control box 300 includes a wireless communication module, which communicates with the AGV and can transmit position information, liquid level information, stirring motor information, etc. to the AGV, so as to facilitate information exchange between the two.

[0083] In some embodiments, the stirring device 150 includes a stirring motor, a reducer, a bearing box, a stirring paddle and other components.

[0084] In some embodiments, a liquid level sensor 160 is disposed on the transfer tank 100 , and the liquid level sensor 160 is used to detect the liquid level of the battery slurry in the containing cavity.

[0085] When it is detected that the battery slurry in the transfer tank 100 is insufficient or full, the system issues an alarm.

[0086] In some embodiments, the control box 300 includes a power battery, which is used to supply power to electrical components such as the stirring motor and the liquid level sensor 160. The power battery is the power supply device mentioned above.

[0087] The control box 300 includes a charging port, which is used to charge the power battery.

[0088] In some embodiments, a fixed cover 121 and a movable cover 122 are provided on the top of the transfer tank 100. The fixed cover 121 is fixedly connected to the top of the transfer tank 100, the fixed cover 121 and the movable cover 122 are rotatably connected via a hinge 124, and a locking member 125 is provided between the movable cover 122 and the transfer tank 100.

[0089] When the movable cover 122 is closed, the movable cover 122 is fixed to the transfer tank 100 by the locking member 125 , and the fixed cover 121 and the movable cover 122 together close the top opening of the transfer tank 100 .

[0090] Unlock the locking piece 125, flip the movable cover 122 upward, and a portion of the top of the transfer tank 100 is opened.

[0091] In some embodiments, a handle 123 is provided on the movable cover 122 to facilitate the opening operation.

[0092] In some embodiments, the area of ​​the fixed cover 121 is larger than the area of ​​the movable cover 122 , and the fixed cover 121 is provided with a stirring device 150 , a liquid level sensor 160 , and a breathing valve 180 .

[0093] An observation window 170 is provided on the fixed cover 121 to facilitate observation of the battery slurry in the tank.

[0094] In some embodiments, extension portions 130 are disposed on the left and right sides of the tank body 110 of the transfer tank 100 , the extension portions 130 are detachably connected to the support frame 200 , and casters 141 are disposed at the bottom of the tank body 110 .

[0095] The transfer tank 100 is placed on the support frame 200 , the extension portion 130 is against the support frame 200 , and then the extension portion 130 is fixed to the support frame 200 by fasteners such as screws, so as to improve the stability of the transfer tank 100 placed on the support frame 200 .

[0096] By releasing the fasteners between the extension portion 130 and the support frame 200 , the transfer tank 100 can be directly lifted off the support frame 200 .

[0097] A plurality of supporting feet 140 are provided at the bottom of the tank body 110, and casters 141 are provided on the supporting feet 140. When the transfer tank 100 needs to be cleaned, the transfer tank 100 is removed from the support frame 200, and the casters 141 are placed on the ground, so that the transfer tank 100 can be moved to the cleaning station.

[0098] When the transfer tank 100 is being cleaned, it is away from the support frame 200 , that is, the transfer tank 100 is away from the control box 300 to prevent water from damaging the control box 300 .

[0099] When the transfer tank 100 is being cleaned, the power battery inside the control box 300 can be charged at the same time, that is, the cleaning of the transfer tank 100 and the charging of the power battery are carried out at the same time.

[0100] In some embodiments, a slurry inlet 191 is disposed on the fixed cover 121 , and the battery slurry is poured into the tank body 110 from top to bottom through the slurry inlet 191 .

[0101] A slurry outlet 192 is provided at the lower portion of the tank body 110 to facilitate the outflow of the battery slurry in the tank.

[0102] In some embodiments, the transfer tank 100 and the control box 300 are connected by an aviation quick-connect connector to facilitate the disassembly of the tank body 110 .

[0103] In some embodiments, reference Figure 4The support frame 200 includes a lower support frame 220 and an upper support frame 210 . A first support column 230 is disposed at the bottom of the lower support frame 220 , and a second support column 240 is disposed between the lower support frame 220 and the upper support frame 210 .

[0104] The transfer tank 100 is detachably mounted on the upper support frame 210 , that is, the extension portion 130 is placed on the upper support frame 210 .

[0105] An identification code is set at the bottom of the lower support frame 220 , and the mobile device 400 carries the lower support frame 220 .

[0106] The double-layer support frame 200 can raise the placement position of the transfer tank 100 to prevent the bottom of the tank body 110 from touching the ground during the transfer process.

[0107] One side of the lower support frame 220 extends out of a portion of the upper support frame 210 , and the control box 300 is fixedly disposed on the extended portion. The control box 300 is located next to the transfer tank 100 .

[0108] The slurry outlet 192 extends from the gap between the lower support frame 220 and the upper support frame 210 to facilitate external piping.

[0109] In some embodiments, a mounting platform 250 is provided on the lower support frame 220, and a power pump 500, specifically a pneumatic diaphragm pump, is provided on the mounting platform 250. The power pump 500 is used to provide power for the slurry transportation between the slurry inlet 191 and the mixing station 11. The power pump 500 is used to provide power for the slurry transportation between the slurry outlet 192 and the coating machine 21.

[0110] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0111] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited to this. Any changes or substitutions that can be easily thought of by technicians familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A battery slurry transfer device, characterized in that: Used for the transfer of battery slurry between the mixing station and the coating machine in battery production, including: A transfer tank having a holding cavity for holding battery slurry formed therein, a stirring device disposed on the transfer tank, the stirring device being configured to stir the battery slurry in the holding cavity, a slurry inlet and a slurry outlet disposed on the transfer tank, the slurry inlet being configured to receive the battery slurry from the stirring station, and the slurry outlet being configured to transport the battery slurry in the holding cavity to the coating machine; A moving device, which is configured to carry the transfer tank and move between the mixing station and the coating machine; A power supply device is configured to move synchronously with the transfer tank to supply power to the stirring device.

2. The battery slurry transfer device according to claim 1, characterized in that: It also includes a support frame, which serves as a support carrier for the transfer tank, and the transfer tank is detachably connected to the support frame; The moving device is configured to carry the support frame and the transfer tank and move between the mixing station and the coating machine; The power supply device is arranged on the supporting frame.

3. The battery slurry transfer device according to claim 2, characterized in that: The mobile device is a latent AGV, an identification code is set at the bottom of the support frame, the AGV carries the support frame to move, and the AGV can identify the identification code.

4. The battery slurry transfer device according to claim 3, characterized in that: It also includes a control box, which is arranged on the support frame. The control box includes a wireless communication module, and the wireless communication module communicates with the AGV.

5. The battery slurry transfer device according to claim 2, characterized in that: A fixed cover and a movable cover are arranged on the top of the transfer tank, the fixed cover is fixedly connected to the top of the transfer tank, the fixed cover is rotatably connected to the movable cover, a locking piece is arranged between the movable cover and the transfer tank, and the stirring device and the slurry inlet are arranged on the fixed cover.

6. The battery slurry transfer device according to claim 5, characterized in that: A liquid level sensor is arranged on the fixed cover body, and the liquid level sensor is used to detect the liquid level of the battery slurry in the containing cavity.

7. The battery slurry transfer device according to claim 5, characterized in that: An observation window is arranged on the fixed cover body.

8. The battery slurry transfer device according to any one of claims 2 to 7, characterized in that: An extension portion is arranged on the tank body of the transfer tank, the extension portion is detachably connected to the support frame, and casters are arranged at the bottom of the tank body.

9. The battery slurry transfer device according to any one of claims 2 to 7, characterized in that: The support frame comprises a lower support frame and an upper support frame, a first support column is arranged at the bottom of the lower support frame, and a second support column is arranged between the lower support frame and the upper support frame; The transfer tank is detachably arranged on the upper support frame, and the moving device carries the lower support frame.

10. A battery production system, characterized in that: It comprises a stirring area, a coating area and a storage area, wherein a plurality of stirring stations are arranged in the stirring area, the coating area is arranged with the coating machine, and the battery slurry transfer device as claimed in any one of claims 1 to 9 is placed in the storage area.

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