Lithium battery diaphragm testing device

Abstract

The utility model discloses a lithium battery diaphragm testing device which comprises an anode plate, a testing box, a testing control box, a lithium battery diaphragm frame, a cathode plate and a clamp, the anode plate and the cathode plate are respectively arranged on two sides of the testing box, and a limiting frame is arranged in the middle of the testing box. A lithium battery diaphragm frame is arranged in the middle of the limiting frame in a sliding inlaying mode, a test control box is arranged at the bottom of the test box, and wire wheels are arranged on the two sides of the test control box. The clamps are arranged on one sides of the tops of the anode plate and the cathode plate, the anode plate and the cathode plate can be clamped and fixed with the side edge of the test box through the clamps, the anode plate is greatly convenient to mount and dismount, the use is more flexible, the limiting frame is arranged in the middle of the test box, and the lithium battery diaphragm frame can be conveniently connected in a sliding and embedding manner through the limiting frame, so that the test efficiency is improved. The clamping plate is arranged in the middle of the lithium battery diaphragm frame, the lithium battery diaphragm can be conveniently clamped and fixed through the clamping plate, and the use is relatively flexible.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery separator testing devices, specifically a lithium battery separator testing device. Background Technology

[0002] Lithium-ion battery separator testing equipment is used to test lithium-ion battery separators, which are one of the key internal components in the structure of a lithium-ion battery. The performance of the separator determines the battery's interface structure, internal resistance, and other characteristics, directly affecting the battery's capacity, cycle life, and safety performance. A high-performance separator plays an important role in improving the overall performance of the battery. The main function of the separator is to separate the positive and negative electrodes of the battery, preventing short circuits caused by contact between the electrodes. In addition, it also allows electrolyte ions to pass through.

[0003] For example, the authorized patent CN207366455U (Lithium Battery Separator Testing Device) includes: an image acquisition module composed of a first surface light source, a first photodetector, a second surface light source, a second photodetector, a third photodetector, and a fourth photodetector; a multi-functional testing module composed of an air permeability testing unit, an upper heating unit, a lower heating unit, an upper electrode, and a lower electrode; and a tensile testing unit. The multi-functional testing module in this invention can simulate the performance of lithium battery separators under the combined effects of high temperature, pressure, and voltage puncture; the image acquisition module uses a surface light source and a photodetector module to obtain surface images of the lithium battery separator; the tensile testing unit is placed within the image acquisition module, facilitating the detection of thickness changes and potential defects such as punctures in the lithium battery separator. This invention can achieve comprehensive performance testing of lithium battery separators, fully reflecting their performance under various testing conditions.

[0004] The existing technology described above is not convenient for installing and fixing the anode and cathode plates, and the lithium battery separator cannot be protected during installation, making it inconvenient for testing and replacement. Furthermore, it is impossible to control the pulling and stretching of the lithium battery separator, making it unable to be flexibly adjusted, and the test data is not convenient for real-time observation. Utility Model Content

[0005] The purpose of this invention is to provide a lithium battery separator testing device to solve the problems mentioned in the background art, such as the inconvenience of installing and fixing the anode plate and cathode plate, the inability to protect the lithium battery separator during installation, the inconvenience of testing and replacement, the inability to control the pulling of the lithium battery separator, the inability to make it flexible and flexible, and the inconvenience of real-time observation of test data.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a lithium battery separator testing device, comprising an anode plate, a test box, a test control box, a lithium battery separator frame, a cathode plate, and a fixture. The test box has an anode plate and a cathode plate on its two sides, a limiting frame in the middle of the test box, and a lithium battery separator frame in the middle of the limiting frame via a sliding embedding method. The test control box is located at the bottom of the test box, and wheel spools are provided on both sides of the test control box.

[0007] In a further embodiment, a clamp is provided on one side of both the anode plate and the cathode plate, an adjusting rod is provided in the middle of one side of the clamp, and a chuck is provided at the end of the adjusting rod.

[0008] In a further embodiment, the lithium battery separator frame has a handle at its top, clamps on both sides of the center of the lithium battery separator frame, and torsion springs at the hinges of the clamps, and the lithium battery separator is positioned in the center of the lithium battery separator frame through the clamps.

[0009] In a further embodiment, the lithium battery separator frame has grooves on both sides, and the grooves are slidably embedded in the grooves of the inner layer of the limiting frame.

[0010] In a further embodiment, the test control box has a control panel on the front and support feet on the bottom.

[0011] In a further embodiment, a power cable is wound on the reel, and the end of the power cable is provided with a power connector for engaging with pins on the top of the anode plate and the cathode plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The anode plate and cathode plate of this utility model are equipped with clamps on one side of their top, which can be clamped and fixed to the side of the test box, greatly facilitating the installation and disassembly of the anode plate and making it more flexible to use. In addition, a limiting frame is provided in the middle of the test box, which facilitates the sliding and embedding connection of the lithium battery separator frame. A clamping plate is provided in the middle of the lithium battery separator frame, which facilitates the clamping and fixing of the lithium battery separator, making it more flexible to use.

[0014] 2. The test box of this utility model is equipped with a test control box at the bottom. The test control box can analyze the test data in real time. It is easy to use and does not require external equipment. There are reels on both sides of the test control box, which facilitate the winding and installation of the power cable. There is a power plug at the end of the power cable, which facilitates the connection to the cathode plate and anode plate. It is quite flexible in use. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the structure of a lithium battery separator testing device according to the present invention;

[0016] Figure 2 This is a top view of the test control box of this utility model;

[0017] Figure 3 This is a front view of the lithium battery separator frame of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the anode plate of this utility model.

[0019] In the diagram: 1. Anode plate; 2. Test box; 3. Limiting frame; 4. Wire wheel; 5. Power cable; 6. Power plug; 7. Test control box; 8. Support feet; 9. Lithium battery separator frame; 10. Cathode plate; 11. Clamping plate; 12. Handle; 13. Fixture; 14. Adjusting rod; 15. Clamp. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Please see Figure 1-4 This utility model provides an embodiment of a lithium battery separator testing device, comprising an anode plate 1, a test chamber 2, a test control box 7, a lithium battery separator frame 9, a cathode plate 10, and a clamp 13. The test chamber 2 has an anode plate 1 and a cathode plate 10 on its two sides respectively. A limiting frame 3 is provided in the middle of the test chamber 2, and the lithium battery separator frame 9 is slidably embedded in the middle of the limiting frame 3. The test control box 7 is located at the bottom of the test chamber 2. Both sides of the test control box 7 are provided with reels 4, on which power cables 5 are wound. The ends of the power cables 5 are provided with power connectors 6, which are used to connect to the anode plate 1 and the cathode plate 10. The top pin docking allows for easy connection to the anode plate 1 and cathode plate 10 via the power connector 6. The test control box 7 has a control panel on the front and support feet 8 on the bottom. The control panel facilitates intelligent control of the test control box 7. The anode plate 1 and cathode plate 10 are used to connect to the circuit. The limiting bracket 3 facilitates the sliding and embedding installation of the lithium battery separator frame 9. The lithium battery separator frame 9 is used to install and replace different lithium battery separators. The test control box 7 facilitates the analysis of test data from the test box 2. The reel 4 allows for the winding of the power cable 5 connected to the circuit for easy use.

[0022] A clamp 13 is provided on one side of both the anode plate 1 and the cathode plate 10. An adjusting rod 14 is provided in the middle of one side of the clamp 13, and a chuck 15 is provided at the end of the adjusting rod 14. The clamp 13 can be used to clamp and fix the clamp to the side of the top of the test box 2.

[0023] The lithium battery separator frame 9 has a handle 12 at its top. The lithium battery separator frame 9 has clamps 11 on both sides of its center. The clamps 11 have torsion springs at their hinges. The lithium battery separator is placed in the center of the lithium battery separator frame 9 through the clamps 11. The handle 12 allows for easy lifting and control of the lithium battery separator frame 9. The clamps 11 can clamp and fix the lithium battery separator on both sides. The lithium battery separator frame 9 has grooves on both sides. The grooves are slidably embedded in the grooves of the inner layer of the limiting frame 3. The grooves can be slidably embedded in the grooves of the limiting frame 3.

[0024] Working principle: In use, the anode plate 1 and cathode plate 10 are respectively placed on both sides of the test chamber 2 and clamped and fixed to the top sides of the test chamber 2 by the clamp 13. The adjustment rod 14 is manually controlled to rotate, so that the adjustment rod 14 controls the clamp 15 to clamp. The lithium battery separator is installed by the lithium battery separator frame 9 and clamped on both sides by the clamp plate 11. Then, the lithium battery separator frame 9 is set in the middle of the limiting frame 3 by sliding embedding. The wire wheel 4 connects to the power cable 5 for winding and installation. The power connector 6 at the end of the power cable 5 is used to connect with the pins at the top of the anode plate 1 and cathode plate 10 to control the anode plate 1 and cathode plate 10 to be connected to the circuit. The charging and discharging quantities are analyzed by the test control box 7. Then, different lithium battery separators are replaced for testing.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A lithium battery separator testing device, comprising an anode plate (1), a test chamber (2), a test control box (7), a lithium battery separator holder (9), a cathode plate (10), and a fixture (13), characterized in that: The test box (2) is provided with an anode plate (1) and a cathode plate (10) on both sides respectively. The test box (2) is provided with a limiting frame (3) in the middle. The limiting frame (3) is provided with a lithium battery separator frame (9) in the middle by sliding embedding. The test box (2) is provided with a test control box (7) at the bottom. The test control box (7) is provided with a reel (4) on both sides.

2. The lithium battery separator testing device according to claim 1, characterized in that: A clamp (13) is provided on one side of both the anode plate (1) and the cathode plate (10). An adjusting rod (14) is provided in the middle of one side of the clamp (13), and a chuck (15) is provided at the end of the adjusting rod (14).

3. The lithium battery separator testing device according to claim 1, characterized in that: The top of the lithium battery separator frame (9) is provided with a handle (12), and the two sides of the lithium battery separator frame (9) are provided with clamps (11), and the hinge of the clamps (11) is provided with a torsion spring, and the lithium battery separator is located in the center of the lithium battery separator frame (9) through the clamps (11).

4. The lithium battery separator testing device according to claim 1, characterized in that: The lithium battery separator frame (9) has grooves on both sides, and the grooves are slidably embedded in the grooves of the inner layer of the limiting frame (3).

5. A lithium battery separator testing device according to claim 1, characterized in that: The test control box (7) has a control panel on the front and a support foot pad (8) on the bottom.

6. The lithium battery separator testing device according to claim 1, characterized in that: The reel (4) has a power cable (5) wound on it. The end of the power cable (5) is provided with a power plug (6), which is used to connect with the pins on the top of the anode plate (1) and the cathode plate (10).

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