Formation and capacity grading negative pressure device

Abstract

The utility model discloses a formation and capacity grading negative pressure device which comprises an argon bottle, a vacuum generator and a gas washing bottle, the argon bottle is communicated with the vacuum generator through a first pipeline, and the vacuum generator is communicated with the gas washing bottle through a second pipeline. And the vacuum generator is used for converting gas in the argon bottle from positive pressure to negative pressure. And a second gas valve is mounted on the first pipeline between the argon bottle and the vacuum generator. And an air filter is arranged on the second pipeline between the vacuum generator and the gas washing bottle. The argon bottle provides a gas source, the gas source is converted into negative pressure through the vacuum generator, and waste gas generated during formation and capacity grading of the sodium-ion battery is pumped out. Meanwhile, argon is used as protective gas to effectively prevent waste gas of the battery cell from polluting an interface, so that various properties of the battery cell are improved. And the whole module is simple in structure, modular operation can be realized, and the cost is relatively low while the production efficiency of the battery cell is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of chemical composition, capacity and negative pressure device, and specifically to a chemical composition, capacity and negative pressure device. Background Technology

[0002] During the formation and capacity testing stages of sodium-ion battery cell manufacturing, waste gas is generated. To effectively remove this waste gas, a negative pressure method is generally used for extraction. However, traditional capacity testing equipment does not have a negative pressure module, and integrating a negative pressure module later is difficult and costly. Utility Model Content

[0003] The purpose of this invention is to solve the problems mentioned above in the background technology and to propose a fractionation negative pressure device.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A gas separation and negative pressure device includes an argon cylinder, a vacuum generator, and a gas washing bottle. The argon cylinder is connected to the vacuum generator through a first pipe, and the vacuum generator is connected to the gas washing bottle through a second pipe. The vacuum generator is used to convert the gas in the argon cylinder from positive pressure to negative pressure.

[0006] As a further embodiment of this utility model: a second gas valve is installed on the first pipe between the argon cylinder and the vacuum generator.

[0007] As a further embodiment of this utility model: an air filter is provided on the second pipe connecting the vacuum generator and the gas washing bottle, and the air filter is used to filter moisture in the air.

[0008] As a further embodiment of this invention, a pressure gauge is also installed on the vacuum generator, which is used to check the negative pressure vacuum level.

[0009] As a further aspect of this utility model: the vacuum generator is also equipped with an exhaust gas discharge pipe, which is used to discharge the exhaust gas extracted by the vacuum.

[0010] As a further embodiment of this invention: the gas washing bottle is connected to the battery's liquid filling port via a third pipe.

[0011] As a further embodiment of this utility model: a first air valve is installed on the third pipe.

[0012] As a further aspect of this invention: the argon cylinder provides high-purity argon gas as a protective gas and provides a pressure source.

[0013] The beneficial effects of this invention are as follows: The argon cylinder provides the gas source, which is converted into negative pressure by a vacuum generator to extract the waste gas generated during the formation and capacity testing of sodium-ion batteries. Simultaneously, argon acts as a protective gas, effectively preventing waste gas from contaminating the battery cell interface, thereby improving the various performance characteristics of the battery cell. Furthermore, the entire module has a simple structure, enabling modular operation, which improves battery cell production efficiency while maintaining relatively low cost. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1 This is a connection diagram of this utility model.

[0016] In the diagram: 1. Battery; 2. Three-way valve; 3. First gas valve; 4. Gas washing bottle; 5. Vacuum generator; 6. Pressure gauge; 7. Air filter; 8. Exhaust gas discharge pipe; 9. Second gas valve; 10. Argon cylinder. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1, please refer to Figure 1 As shown, this utility model is a gas separation and negative pressure device, including an argon cylinder 10, a vacuum generator 5, and a gas washing bottle 4. The argon cylinder 10 is connected to the vacuum generator 5 through a first pipe, and the vacuum generator 5 is connected to the gas washing bottle 4 through a second pipe. The vacuum generator 5 is used to convert the gas in the argon cylinder 10 from positive pressure to negative pressure.

[0019] Example 2, please refer to Figure 1 As shown, this utility model is a gas separation and negative pressure device, including an argon cylinder 10, a vacuum generator 5, and a gas washing bottle 4. The argon cylinder 10 is connected to the vacuum generator 5 through a first pipe, and the vacuum generator 5 is connected to the gas washing bottle 4 through a second pipe. The vacuum generator 5 is used to convert the gas in the argon cylinder 10 from positive pressure to negative pressure. A second gas valve 9 is installed on the first pipe between the argon cylinder 10 and the vacuum generator 5.

[0020] Example 3, please refer to Figure 1As shown, this utility model is a negative pressure device for gas separation and concentration, comprising an argon cylinder 10, a vacuum generator 5, and a gas washing bottle 4. The argon cylinder 10 is connected to the vacuum generator 5 via a first pipe, and the vacuum generator 5 is connected to the gas washing bottle 4 via a second pipe. The vacuum generator 5 is used to convert the gas in the argon cylinder 10 from positive pressure to negative pressure. A second gas valve 9 is installed on the first pipe between the argon cylinder 10 and the vacuum generator 5. An air filter 7 is provided on the second pipe between the vacuum generator 5 and the gas washing bottle 4, and the air filter 7 is used to filter moisture from the air.

[0021] Example 4, please refer to Figure 1 As shown, this utility model is a negative pressure device for gas separation and concentration, including an argon cylinder 10, a vacuum generator 5, and a gas washing bottle 4. The argon cylinder 10 is connected to the vacuum generator 5 through a first pipe, and the vacuum generator 5 is connected to the gas washing bottle 4 through a second pipe. The vacuum generator 5 is used to convert the gas in the argon cylinder 10 from positive pressure to negative pressure. A second gas valve 9 is installed on the first pipe between the argon cylinder 10 and the vacuum generator 5. An air filter 7 is installed on the second pipe between the vacuum generator 5 and the gas washing bottle 4, and the air filter 7 is used to filter moisture in the air. A pressure gauge 6 is also installed on the vacuum generator 5, and the pressure gauge 6 is used to check the negative pressure vacuum degree.

[0022] Example 5, please refer to Figure 1 As shown, this utility model is a negative pressure device for gas separation and concentration, including an argon cylinder 10, a vacuum generator 5, and a gas washing bottle 4. The argon cylinder 10 is connected to the vacuum generator 5 through a first pipe, and the vacuum generator 5 is connected to the gas washing bottle 4 through a second pipe. The vacuum generator 5 is used to convert the gas in the argon cylinder 10 from positive pressure to negative pressure. A second gas valve 9 is installed on the first pipe between the argon cylinder 10 and the vacuum generator 5. An air filter 7 is installed on the second pipe between the vacuum generator 5 and the gas washing bottle 4, and the air filter 7 is used to filter moisture in the air. A pressure gauge 6 is also installed on the vacuum generator 5, and the pressure gauge 6 is used to check the negative pressure vacuum degree. An exhaust gas discharge pipe 8 is also installed on the vacuum generator 5, and the exhaust gas discharge pipe 8 is used to discharge the exhaust gas extracted by vacuum.

[0023] Example 6, please refer to Figure 1As shown, this utility model is a negative pressure device for gas separation and concentration, including an argon cylinder 10, a vacuum generator 5, and a gas washing bottle 4. The argon cylinder 10 is connected to the vacuum generator 5 through a first pipe, and the vacuum generator 5 is connected to the gas washing bottle 4 through a second pipe. The vacuum generator 5 is used to convert the gas in the argon cylinder 10 from positive pressure to negative pressure. A second gas valve 9 is installed on the first pipe between the argon cylinder 10 and the vacuum generator 5. An air filter 7 is installed on the second pipe between the vacuum generator 5 and the gas washing bottle 4, and the air filter 7 is used to filter moisture in the air. A pressure gauge 6 is also installed on the vacuum generator 5, and the pressure gauge 6 is used to check the negative pressure vacuum degree. An exhaust gas discharge pipe 8 is also installed on the vacuum generator 5, and the exhaust gas discharge pipe 8 is used to discharge the exhaust gas extracted by vacuum.

[0024] The gas washing bottle 4 is connected to the liquid filling port of the battery 1 via a third pipe. A first gas valve 3 is installed on the third pipe.

[0025] Example 7, please refer to Figure 1 As shown, this utility model is a negative pressure device for gas separation and concentration, including an argon cylinder 10, a vacuum generator 5, and a gas washing bottle 4. The argon cylinder 10 is connected to the vacuum generator 5 through a first pipe, and the vacuum generator 5 is connected to the gas washing bottle 4 through a second pipe. The vacuum generator 5 is used to convert the gas in the argon cylinder 10 from positive pressure to negative pressure. A second gas valve 9 is installed on the first pipe between the argon cylinder 10 and the vacuum generator 5. An air filter 7 is installed on the second pipe between the vacuum generator 5 and the gas washing bottle 4, and the air filter 7 is used to filter moisture in the air. A pressure gauge 6 is also installed on the vacuum generator 5, and the pressure gauge 6 is used to check the negative pressure vacuum degree. An exhaust gas discharge pipe 8 is also installed on the vacuum generator 5, and the exhaust gas discharge pipe 8 is used to discharge the exhaust gas extracted by vacuum.

[0026] The gas washing bottle 4 is connected to the liquid filling port of the battery 1 via a third pipe. A first gas valve 3 is installed on the third pipe.

[0027] The argon cylinder 10 provides high-purity argon as a protective gas and provides a pressure source.

[0028] The device mainly consists of a vacuum generator 5, an argon cylinder 10 (99.999% purity), an air filter 7, and a gas washing bottle 4.

[0029] Argon cylinder 10 is connected to vacuum generator 5 via gas valve 9. Argon cylinder 10 provides high-purity argon as a protective gas and provides a pressure source. Vacuum generator 5 converts the positive pressure of argon cylinder into negative pressure.

[0030] The vacuum generator 5 is connected to a pressure gauge 6, an air filter 7, and an exhaust pipe 8. The pressure gauge 6 is used to check the negative pressure vacuum level, the air filter 7 is used to filter moisture in the air, and the exhaust pipe 8 is used to discharge the exhaust gas extracted by the vacuum.

[0031] The vacuum pipeline connects from the air filter 7 to the gas washing bottle 4, then through the gas valve 3 to three three-way valves 2, converting it into four vacuum pipelines, and finally connects to the battery filling port. The gas washing bottle 4 is provided to prevent electrolyte backflow.

[0032] The foregoing has provided a detailed description of one embodiment of the present invention, but the description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the coverage of the claims of the present invention.

Claims

1. A formation and dispensing negative pressure device comprising an argon gas cylinder (10), a vacuum generator (5) and a gas washing cylinder (4), characterized in that, The argon cylinder (10) is connected to the vacuum generator (5) through a first pipe, and the vacuum generator (5) is connected to the gas washing bottle (4) through a second pipe. The vacuum generator (5) is used to convert the gas in the argon cylinder (10) from positive pressure to negative pressure.

2. The formation and dispensing negative pressure device according to claim 1, characterized in that, A second gas valve (9) is installed on the first pipe between the argon cylinder (10) and the vacuum generator (5). 3.The formation and dispensing negative pressure device according to claim 1, characterized in that, An air filter (7) is provided on the second pipe between the vacuum generator (5) and the gas washing bottle (4), and the air filter (7) is used to filter moisture in the air.

4. The formation and dispensing negative pressure device according to claim 1, characterized in that, The vacuum generator (5) is also equipped with a pressure gauge (6), which is used to check the negative pressure vacuum level.

5. The formation and dispensing negative pressure device according to claim 1, characterized in that, The vacuum generator (5) is also equipped with an exhaust gas discharge pipe (8), which is used to discharge the exhaust gas extracted by the vacuum. 6.The formation and dispensing negative pressure device according to claim 1, characterized in that, The gas washing bottle (4) is connected to the liquid injection port of the battery (1) through a third pipe.

7. The formation and dispensing negative pressure device according to claim 6, characterized in that, The third pipeline is equipped with a first air valve (3).

8. The chemical mixing and dispensing negative pressure device according to any one of claims 1 to 7, characterized in that, The argon cylinder (10) provides high-purity argon as a protective gas and provides a pressure source.

9. A negative pressure device for batching and filling according to claim 1, characterized in that, Both the first pipe and the second pipe are vacuum pipes.

10. The formation and dispensing negative pressure device according to claim 6, characterized in that, The third pipe is also a vacuum pipe.

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