Uniform permeation and diversion device for lithium cell electrolyte

Abstract

The utility model relates to the technical field of lithium ion battery production devices, in particular to a lithium battery cell electrolyte uniform permeating and guiding device which comprises an operation panel, a cross beam plate is arranged above the operation panel, a permeating and guiding assembly is arranged on the cross beam plate, and the permeating and guiding assembly comprises an air cylinder fixedly installed on the cross beam plate. A plugging plate is arranged at the tail end of a telescopic shaft of the air cylinder, a left hollow flow guide plate and a right hollow flow guide plate are detachably connected to the bottom face of the plugging plate, a plurality of flow guide holes communicated with the outside are formed in the bottom walls of the hollow flow guide plates, and a left vacuum suction nozzle and a right vacuum suction nozzle are fixedly installed on the bottom face of the plugging plate. A left electrolyte storage barrel and a right electrolyte storage barrel which are symmetrical are arranged on one side of the plugging plate, electrolyte is conveyed between the electrolyte storage barrels and the corresponding hollow flow guide plates through metering pumps, a vacuum pump is arranged on one side of the plugging plate, and the vacuum suction nozzles are connected with the vacuum pump through pipelines. The utility model has a better permeation diversion effect, and is beneficial to improving the quality of the battery cell.

Description

Technical Field

[0001] This utility model relates to the technical field of lithium-ion battery production equipment, and more specifically, to a lithium battery cell electrolyte uniform permeation and diversion device. Background Technology

[0002] Lithium batteries are widely used in portable electronic devices, electric vehicles, and energy storage systems due to their advantages such as high energy density, long cycle life, and low self-discharge rate. In the lithium battery production process, electrolyte needs to be added to the positive and negative electrodes of the lithium battery. The uniform penetration of the electrolyte plays a decisive role in the performance and quality of the cell.

[0003] Currently, traditional lithium-ion battery cell electrolyte injection and permeation processes have many drawbacks. On the one hand, the common immersion injection method allows the electrolyte to slowly permeate from the cell surface into the interior, resulting in low production efficiency due to the slow permeation rate. Moreover, due to the complexity of the internal structure of the battery cell, uneven electrolyte distribution is prone to occur, with some areas having excessive electrolyte and others insufficient, affecting the consistency and overall performance of the cell. On the other hand, while spray injection can accelerate the injection speed to some extent, it is still difficult to ensure uniform electrolyte permeation within the cell and easily leads to electrolyte waste, affecting the injection and uniform permeation effect. Therefore, we propose a lithium-ion battery cell electrolyte uniform permeation and diversion device. Utility Model Content

[0004] The purpose of this invention is to provide a lithium battery cell electrolyte uniform permeation and diversion device to solve the defects mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A lithium battery cell electrolyte uniform permeation and diversion device includes an operation panel. A crossbeam is positioned above the operation panel, and a permeation and diversion assembly is mounted on the crossbeam. The permeation and diversion assembly includes a cylinder fixedly mounted on the crossbeam. A sealing plate is mounted at the end of the cylinder's telescopic shaft. Two symmetrical hollow diversion plates are detachably connected to the bottom surface of the sealing plate. Multiple diversion holes communicating with the outside are provided on the bottom wall of the hollow diversion plates. Two symmetrical vacuum nozzles are fixedly mounted on the bottom surface of the sealing plate. Two symmetrical electrolyte storage cylinders are located on one side of the sealing plate. Electrolyte is supplied between the electrolyte storage cylinders and the corresponding hollow diversion plates via a metering pump. A vacuum pump is located on one side of the sealing plate, and the vacuum nozzles are connected to the vacuum pump via pipes.

[0007] Preferably, a positioning frame is fixedly installed on the upper surface of the operation panel. The positioning frame has a U-shaped cross-section, and the front side of the positioning frame is connected to the outside.

[0008] Preferably, an electric push rod is fixedly installed on one side plate of the positioning frame, and a clamping plate is fixedly installed at the end of the telescopic shaft of the electric push rod, and the electric push rod is arranged horizontally.

[0009] Preferably, a rectangular plate is fixedly installed at the end of the telescopic shaft of the cylinder, and the sealing plate is fixedly installed on the bottom surface of the rectangular plate.

[0010] Preferably, a protrusion is fixedly installed on the side of the hollow guide plate, and the protrusion is fixedly installed on the bottom surface of the sealing plate by fastening screws.

[0011] Preferably, a connector pipe connected to the interior of the hollow guide plate is fixedly installed on the side of the hollow guide plate, the inlet end of the metering pump is connected to the electrolyte storage cylinder through a liquid pipe, and an injection pipe is fixedly installed on the outlet end of the metering pump. The injection pipe is flange-connected to the connector pipe.

[0012] Preferably, a sealing gasket is provided on the bottom surface of the sealing plate, a vacuum tube is fixedly installed on the suction end of the vacuum pump, two symmetrical suction tubes are fixedly installed on the vacuum tube, and the vacuum nozzle is connected to the corresponding suction tube.

[0013] Preferably, a top cover is hinged to the top surface of the electrolyte storage cylinder, and a handle is fixedly installed on the back of the top cover.

[0014] Preferably, two symmetrical guide posts are fixedly installed on the upper surface of the sealing plate, and two symmetrical guide sleeves are fixedly installed on the bottom surface of the crossbeam plate. The guide sleeves are fitted onto the guide posts and are slidably connected to the guide posts.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model, by setting up a permeation and guiding component, uses a cylinder to drive the sealing plate and hollow guiding plate to descend, and a metering pump to transport the electrolyte in the electrolyte storage cylinder to the hollow guiding plate, and then permeates into the lithium battery cell through the guiding holes. The vacuum nozzle and vacuum pump work together to extract air, thereby achieving uniform permeation and guiding of the electrolyte in the lithium battery cell, thus improving the quality of the battery cell.

[0017] 2. This utility model, by setting a positioning frame, an electric push rod, and a clamping plate, provides positioning for the lithium battery cell, and the electric push rod pushes the clamping plate to clamp and fix the lithium battery cell, thereby achieving stable placement of the battery cell during operation and facilitating precise operation.

[0018] 3. This utility model, by setting guide posts and guide sleeves, with the guide posts and guide sleeves slidably connected, guides the lifting and lowering of the sealing plate. At the same time, the sealing gasket enhances the sealing between the sealing plate and the battery cell. The protrusion on the side of the hollow guide plate cooperates with the fastening screw to achieve a detachable connection, which facilitates the replacement of different hollow guide plates. This achieves the stability of the device operation and the convenience of component replacement, thereby reducing maintenance costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a partial structural schematic diagram of the present invention;

[0021] Figure 3 This is one of the partial structural schematic diagrams of the permeation guiding component of this utility model;

[0022] Figure 4 This is a second schematic diagram of a partial structure of the permeation guiding component of this utility model;

[0023] The meanings of the labels in the diagram are as follows:

[0024] 1. Control panel; 10. Positioning frame; 11. Electric push rod; 12. Clamping plate; 13. Crossbeam plate;

[0025] 2. Permeation guiding assembly; 20. Cylinder; 201. Rectangular plate; 21. Sealing plate; 22. Hollow guide plate; 221. Protrusion; 222. Guide hole; 223. Connector pipe; 24. Sealing gasket; 25. Vacuum nozzle; 26. Vacuum tube; 261. Suction tube; 262. Vacuum pump; 27. Electrolyte storage cylinder; 271. Top cover; 272. Handle; 28. Metering pump; 281. Liquid tube; 282. Injection tube; 29. ​​Guide post; 291. Guide sleeve. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-4This utility model provides a technical solution: a lithium battery cell electrolyte uniform penetration and diversion device, including an operation panel 1. A positioning frame 10 is fixedly installed on the upper surface of the operation panel 1. The positioning frame 10 has a U-shaped cross-section and its front side is connected to the outside. The operation panel 1 provides a support platform for the entire device. The positioning frame 10 can position the lithium battery cell, which facilitates the subsequent electrolyte penetration and diversion operation and effectively improves the accuracy of the operation. An electric push rod 11 is fixedly installed on one side plate of the positioning frame 10. A clamping plate 12 is fixedly installed at the end of the telescopic shaft of the electric push rod 11. The electric push rod 11 is horizontally arranged. The electric push rod 11 pushes the clamping plate 12 to move and clamp and fix the lithium battery cell placed in the positioning frame 10, so as to prevent the battery cell from shifting during the operation and ensure the stability of the operation.

[0028] Specifically, a crossbeam plate 13 is provided above the operation panel 1, and a permeation guiding component 2 is provided on the crossbeam plate 13. The permeation guiding component 2 includes a cylinder 20 fixedly installed on the crossbeam plate 13. A sealing plate 21 is provided at the end of the telescopic shaft of the cylinder 20. Two symmetrical hollow guiding plates 22 are detachably connected to the bottom surface of the sealing plate 21. Multiple guiding holes 222 communicating with the outside are provided on the bottom wall of the hollow guiding plate 22. Two symmetrical vacuum nozzles 25 are fixedly installed on the bottom surface of the sealing plate 21. Two symmetrical electrolyte storage cylinders 27 are provided on one side of the sealing plate 21. Electrolyte is supplied between the electrolyte storage cylinders 27 and the corresponding hollow guiding plates 22 through a metering pump 28. A vacuum pump 262 is provided on one side of the sealing plate 21. The vacuum nozzles 25 are connected to the vacuum pump 262 through a pipe. A hollow guiding plate 22 is fixedly installed on the side of the hollow guiding plate 22. The connector pipe 223 inside plate 22 is connected to the inlet end of metering pump 28, which is connected to electrolyte storage cylinder 27 via liquid pipe 281. The outlet end of metering pump 28 is fixedly installed with injection pipe 282, which is flanged to connector pipe 223. Vacuum pump 262 is fixedly installed with vacuum pipe 26, and two symmetrical suction pipes 261 are fixedly installed on vacuum pipe 26. Vacuum nozzle 25 is connected to the corresponding suction pipe 261. Vacuum pump 262 draws air around lithium battery cell through vacuum pipe 26 and suction pipe 261, and vacuum nozzle 25 to form a negative pressure environment, which accelerates electrolyte penetration and improves penetration efficiency. Metering pump 28 delivers electrolyte in electrolyte storage cylinder 27 to hollow guide plate 22 through liquid pipe 281, injection pipe 282 and connector pipe 223, which can accurately control the electrolyte delivery volume and ensure the accuracy of electrolyte supply.

[0029] In this embodiment, a rectangular plate 201 is fixedly installed at the end of the telescopic shaft of the cylinder 20, and the sealing plate 21 is fixedly installed on the bottom surface of the rectangular plate 201 by multiple fastening bolts, which facilitates the fixed installation operation.

[0030] Specifically, a protrusion 221 is fixedly installed on the side of the hollow guide plate 22. The protrusion 221 is fixedly installed on the bottom surface of the sealing plate 21 by fastening screws, which facilitates maintenance and replacement.

[0031] Furthermore, a sealing gasket 24 is provided on the bottom surface of the sealing plate 21, which enhances the sealing between the sealing plate 21 and the lithium battery cell, prevents electrolyte leakage, and ensures operational safety.

[0032] In addition, a top cover 271 is hinged to the top surface of the electrolyte storage cylinder 27, and a handle 272 is fixedly installed on the back of the top cover 271. The top cover 271 can be easily opened or closed with the help of the handle 272, making it convenient to add or replace electrolyte in the storage cylinder.

[0033] It is worth noting that two symmetrical guide posts 29 are fixedly installed on the upper surface of the sealing plate 21, and two symmetrical guide sleeves 291 are fixedly installed on the bottom surface of the crossbeam plate 13. The guide sleeves 291 are fitted on the guide posts 29 and are slidably connected to the guide posts 29, providing guidance for the lifting and lowering of the sealing plate 21, ensuring the smoothness of the movement of the sealing plate 21, and improving the reliability of the device operation.

[0034] Finally, it should be noted that the electric push rod 11, vacuum pump 262, cylinder 20 and metering pump 28 involved in this utility model are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components and the matching controller and power supply, are connected by wires. The specific connection method should refer to the working principle of this utility model. The electrical connection between each electrical component is completed in the order of operation. The detailed connection method is a technology known in the art.

[0035] When using the lithium battery cell electrolyte uniform permeation and diversion device of this utility model, firstly, the lithium battery cell is placed in the front of the positioning frame 10, and the positioning frame 10 initially positions it. Then, the electric push rod 11 is activated, and the electric push rod 11 extends and retracts horizontally, pushing the clamping plate 12 to firmly fix the lithium battery cell in the positioning frame 10. At this time, the lithium battery cell is located directly below the sealing plate 21.

[0036] Subsequently, cylinder 20 is activated. The telescopic shaft of cylinder 20 drives rectangular plate 201 and sealing plate 21 to descend. When the sealing gasket 24 on the bottom surface of sealing plate 21 is tightly attached to the lithium battery cell, vacuum pump 262 is activated. Vacuum pump 262 draws air around the lithium battery cell through vacuum tube 26 and suction tube 261 and vacuum nozzle 25 to form negative pressure and accelerate electrolyte penetration.

[0037] Next, the metering pump 28 is started. The metering pump 28 delivers the electrolyte in the electrolyte storage cylinder 27 through the liquid pipe 281, the liquid injection pipe 282 and the connector pipe 223 to the hollow guide plate 22. The electrolyte then flows evenly to the lithium battery cell through the guide hole 222, so that the electrolyte penetrates more thoroughly.

[0038] After use, the cylinder 20 drives the sealing plate 21 to rise and reset. If maintenance or replacement of the hollow guide plate 22 is required, the fastening screws on the protrusion 221 can be unscrewed.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lithium battery cell electrolyte uniform penetration and conduction device, comprising an operation panel (1), characterized in that: A crossbeam plate (13) is provided above the operation panel (1), and a permeation guide assembly (2) is provided on the crossbeam plate (13). The permeation guide assembly (2) includes a cylinder (20) fixedly installed on the crossbeam plate (13). A sealing plate (21) is provided at the end of the telescopic shaft of the cylinder (20). Two hollow guide plates (22) that are symmetrical to each other are detachably connected to the bottom surface of the sealing plate (21). Multiple guides that communicate with the outside are provided on the bottom wall of the hollow guide plate (22). Hole (222), two symmetrical vacuum nozzles (25) are fixedly installed on the bottom surface of the sealing plate (21), and two symmetrical electrolyte storage cylinders (27) are provided on one side of the sealing plate (21). Electrolyte is transported between the electrolyte storage cylinder (27) and the corresponding hollow guide plate (22) through a metering pump (28). A vacuum pump (262) is provided on one side of the sealing plate (21), and the vacuum nozzles (25) and the vacuum pump (262) are connected through pipes.

2. The lithium battery cell electrolyte uniform penetration flow guide device according to claim 1, characterized in that: A positioning frame (10) is fixedly installed on the upper surface of the operation panel (1). The positioning frame (10) has a U-shaped cross section and the front side of the positioning frame (10) is connected to the outside.

3. The lithium battery cell electrolyte uniform penetration flow guide device of claim 2, wherein: An electric push rod (11) is fixedly installed on one side plate of the positioning frame (10), and a clamping plate (12) is fixedly installed at the end of the telescopic shaft of the electric push rod (11). The electric push rod (11) is arranged horizontally.

4. The lithium battery cell electrolyte uniform penetration flow guide device of claim 1, wherein: A rectangular plate (201) is fixedly installed at the end of the telescopic shaft of the cylinder (20), and the sealing plate (21) is fixedly installed on the bottom surface of the rectangular plate (201).

5. The lithium cell electrolyte uniform penetration flow guide device according to claim 1, characterized in that: A protrusion (221) is fixedly installed on the side of the hollow guide plate (22), and the protrusion (221) is fixedly installed on the bottom surface of the sealing plate (21) by fastening screws.

6. The lithium battery cell electrolyte uniform penetration flow guide device of claim 5, wherein: A connector pipe (223) communicating with the interior of the hollow guide plate (22) is fixedly installed on the side of the hollow guide plate (22). The liquid inlet end of the metering pump (28) is connected to the electrolyte storage cylinder (27) through a liquid pipe (281). An injection pipe (282) is fixedly installed at the liquid outlet end of the metering pump (28). The injection pipe (282) is flange-connected to the connector pipe (223).

7. The lithium cell electrolyte uniform penetration flow guide device according to claim 1, characterized in that: A sealing gasket (24) is provided on the bottom surface of the sealing plate (21). A vacuum tube (26) is fixedly installed on the suction end of the vacuum pump (262). Two symmetrical suction tubes (261) are fixedly installed on the vacuum tube (26). The vacuum nozzle (25) is connected to the corresponding suction tube (261).

8. The lithium cell electrolyte uniform penetration flow guide device according to claim 1, characterized in that: The top surface of the electrolyte storage cylinder (27) is hinged to a top cover (271), and a handle (272) is fixedly installed on the back of the top cover (271).

9. The lithium cell electrolyte uniform penetration flow guide device according to claim 1, characterized in that: The upper surface of the blocking plate (21) is fixedly provided with two mutually symmetrical guide columns (29), and the bottom surface of the cross beam plate (13) is fixedly provided with two mutually symmetrical guide sleeves (291) which are sleeved on the guide columns (29) and are in sliding connection with the guide columns (29).

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