CN213184393U

CN213184393U - Vertical air-extracting formation device for lithium ion power battery

Info

Publication number: CN213184393U
Application number: CN202022367016.XU
Authority: CN
Inventors: 肖洋; 李凯; 张亮; 郭俊杰
Original assignee: Tangshan Aerospace Wanyuan Technology Co ltd
Current assignee: Tangshan Aerospace Wanyuan Technology Co ltd
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-05-11
Anticipated expiration: 2030-10-22

Abstract

The utility model discloses a vertical air extraction formation device of a lithium ion power battery, which comprises a battery body, an injector, a water tank and a reaction box, wherein an air bag is sleeved on the upper surface of the battery body, one end of the injector is fixedly connected with a connecting air pipe, and the end of the connecting air pipe, which is far away from the injector, extends to the inside of the air bag; the lateral wall fixedly connected with check valve of water tank, the one end fixedly connected with second blast pipe of check valve, the inside fixedly connected with suction fan of reaction box, the one end that the check valve was just kept away from to the second blast pipe extends to the inside of reaction box and the output fixed connection of suction fan, the top fixedly connected with ozone generator of reaction box. The utility model can generate a plurality of gases (ethylene, hydrogen, carbon monoxide, etc.) during the formation of the battery; the battery is pumped in the formation stage, so that the efficiency can be greatly improved, and the gas is prevented from damaging an SEI film formed by the battery.

Description

Vertical air-extracting formation device for lithium ion power battery

Technical Field

The utility model relates to a lithium ion battery technical field especially relates to a vertical formation device of bleeding of lithium ion power battery.

Background

The lithium ion battery is internally in a spiral structure, the positive electrode and the negative electrode are separated by a layer of thin film paper with a plurality of fine pores, the lithium ion core is a novel battery energy source and does not contain metal lithium, only lithium ions move back and forth between the positive electrode and the negative electrode in the charging and discharging process, the electrodes and electrolyte do not participate in the reaction, the energy capacity density of the lithium ion core can reach 300Wh/L, the weight capacity density can reach 125Wh/L, the reaction mechanism of the lithium ion core is that the lithium ions are inserted and extracted between the positive electrode and the negative electrode along with the charging and discharging, and the lithium ions shuttle back and forth inside the battery core without the existence of the metal lithium, so the lithium ion core is safer and more stable, the positive electrode of the lithium ion battery adopts lithium cobaltate, and; the negative electrode adopts carbon, the negative electrode current collector is copper foil, and the electrolyte of the lithium ion battery is an organism in which LiPF6 is dissolved.

However, when the battery is formed (during first charging), the battery reacts with lithium ions to form (CH2OCO2Li)2, LiCH2CH2OCO2Li, CH3OCO2Li, LiOH, Li2CO3, LiF and the like, which cover the surface of the negative electrode to form an SEI film, and gases such as ethylene, hydrogen, carbon monoxide and the like generated at the same time are easy to damage the SEI film, and the gases are not extracted in time to be purified, which easily causes potential safety hazards to the body of workers.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art, and providing a vertical air-extracting formation device for a lithium ion power battery.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a vertical air extraction formation device for a lithium ion power battery comprises a battery body, an injector, a water tank and a reaction box, wherein an air bag is sleeved on the upper surface of the battery body, one end of the injector is fixedly connected with a connecting air pipe, and one end of the connecting air pipe, which is far away from the injector, extends into the air bag;

the lateral wall fixedly connected with check valve of water tank, the one end fixedly connected with second blast pipe of check valve, the inside fixedly connected with suction fan of reaction box, the one end that the check valve was just kept away from to the second blast pipe extends to the inside of reaction box and the output fixed connection of suction fan, the top fixedly connected with ozone generator of reaction box.

As a further description of the above technical solution:

the front of syringe is provided with first exhaust port, the surface cover of first exhaust port is equipped with first exhaust pipe, the one end that first exhaust pipe just kept away from the syringe extends to the inside of water tank.

As a further description of the above technical solution:

the surface of the air bag is provided with a high-temperature adhesive tape, and the air bag and the connecting air pipe are fixed through the high-temperature adhesive tape.

As a further description of the above technical solution:

the front of the water tank is provided with a glass window.

As a further description of the above technical solution:

the output end of the ozone generator is fixedly connected with a through pipe, and one end of the through pipe extends into the reaction box.

As a further description of the above technical solution:

the lateral wall of water tank and the lateral wall of keeping away from the check valve are provided with the outlet, the lateral wall of water tank and the top side that is located the outlet are provided with the water inlet.

As a further description of the above technical solution:

the lateral wall of reaction box just keeps away from the one end of second blast pipe and is provided with the second gas vent, the inside of second gas vent and water inlet and outlet all is provided with the valve.

As a further description of the above technical solution:

the front of the reaction box is fixedly connected with a control box, and the suction fan and the ozone generator are both electrically connected with the control box.

The utility model discloses following beneficial effect has:

1. compared with the prior art, the vertical type air extraction formation device for the lithium ion power battery has the advantages that the injector and the air bag are arranged, so that a lot of gases (ethylene, hydrogen, carbon monoxide and the like) can be generated in the formation of the battery; the battery is pumped in the formation stage, so that the efficiency can be greatly improved, and the gas is prevented from damaging an SEI film formed by the battery.

2. Compared with the prior art, this lithium ion power battery is vertical to be bled and becomes device, through being provided with the water tank, can pour organic solvent into in the inside of water tank and purify ethylene, prevent to reveal that the discharge causes harm to staff's health.

3. Compared with the prior art, the vertical type air-exhaust formation device for the lithium ion power battery is provided with the reaction box and the ozone generator, so that hydrogen and ozone generated by the same carbon generator and the ozone generator can be generated to generate carbon dioxide and oxygen which are harmless to human bodies, and the hidden danger that toxic gas harms the bodies of workers is effectively solved.

4. Compared with the prior art, this vertical air extraction of lithium ion power battery becomes device through being provided with the suction fan, can let in the reaction box with toxic gas fast and take place the reaction, convenient to use.

Drawings

Fig. 1 is a schematic view of the overall structure of a vertical air-extracting formation device for a lithium ion power battery provided by the present invention;

fig. 2 is a schematic structural view of an injector of a vertical type air-extraction formation device for a lithium ion power battery according to the present invention;

fig. 3 is a schematic diagram of an internal structure of a reaction box of the vertical type air-extraction formation device for the lithium ion power battery of the present invention;

fig. 4 is a partial enlarged view of a in fig. 1 according to the present invention.

Illustration of the drawings:

1. a battery body; 2. an air bag; 3. a high temperature adhesive tape; 4. connecting an air pipe; 5. an injector; 6. a first exhaust port; 7. a first exhaust pipe; 8. a water tank; 9. a glass window; 10. a water outlet; 11. a water inlet; 12. a reaction box; 13. an ozone generator; 14. a suction fan; 15. a one-way valve; 16. a second exhaust pipe; 17. a second exhaust port; 18. a valve; 19. pipe passing; 20. and a control box.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but 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 thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the utility model provides a pair of lithium ion power battery is vertical to be bled into device: the battery comprises a battery body 1, an injector 5, a water tank 8 and a reaction box 12, wherein an air bag 2 is sleeved on the upper surface of the battery body 1, one end of the injector 5 is fixedly connected with a connecting air pipe 4, and one end of the connecting air pipe 4, which is far away from the injector 5, extends into the air bag 2, so that the efficiency can be greatly improved, and the SEI film formed by the battery is prevented from being damaged by generated gas;

the lateral wall fixedly connected with check valve 15 of water tank 8, can prevent that ozone from letting in the inside of water tank 8, the one end fixedly connected with second blast pipe 16 of check valve 15, the inside fixedly connected with suction fan 14 of reaction box 12, accelerate the inside that residual gas got into reaction box 12, the one end that second blast pipe 16 and kept away from check valve 15 extends to the inside of reaction box 12 and the output fixed connection of suction fan 14, the top fixedly connected with ozone generator 13 of reaction box 12, produce ozone and toxic gas and react, ozone generator 13's output fixedly connected with siphunculus 19, the one end of siphunculus 19 extends to the inside of reaction box 12, the convenience lets in the inside of reaction box 12 with the ozone that produces.

The front of the injector 5 is provided with a first exhaust port 6, the surface of the first exhaust port 6 is sleeved with a first exhaust pipe 7, one end of the first exhaust pipe 7, which is far away from the injector 5, extends into the water tank 8, the surface of the air bag 2 is provided with a high-temperature adhesive tape 3, which facilitates the fixed connection of the air bag 4, the air bag 2 and the connection air pipe 4 are fixed through the high-temperature adhesive tape 3, the front of the water tank 8 is provided with a glass window 9, which facilitates the observation of the adding amount of the organic solvent, the side wall of the water tank 8, which is far away from the one-way valve 15, is provided with a water outlet 10, the side wall of the water tank 8, which is located at the top side of the water outlet 10, is provided with a water inlet 11 for controlling the adding and discharging of the organic solution, the side wall of the reaction box 12, which is far away from the end of, the suction fan 14 and the ozone generator 13 are both electrically connected with the control box 20.

The working principle is as follows: when the device is used, the connecting air pipe 4 is inserted into the air bag 2 and is fixed through the high-temperature adhesive tape 3, the first exhaust pipe 7 is connected with the first exhaust port 6, the organic solvent is added into the water tank 8 through the water inlet 11, the device can be used after the addition is finished, when the device is used, the suction fan 14 and the ozone generator 13 are opened through the control box 20, the gas in the air bag 2 is pumped out through the injector 5 and the connecting air pipe 4, the injector 5 enters the water tank 8 through the first exhaust pipe 7 after reaching a specified position and purifies ethylene, the suction fan 14 sucks residual gas into the reaction box 12 through the second exhaust pipe 16, oxygen and carbon dioxide are generated through the reaction of generated ozone, carbon monoxide and hydrogen, and then the valve 18 is opened and is exhausted through the second exhaust port 17.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a vertical formation device that bleeds of lithium ion power battery, includes battery body (1) and syringe (5) and water tank (8) and reaction box (12), its characterized in that: the upper surface of the battery body (1) is sleeved with an air bag (2), one end of the injector (5) is fixedly connected with a connecting air pipe (4), and one end of the connecting air pipe (4) far away from the injector (5) extends into the air bag (2);

the utility model discloses a reaction box, including the lateral wall fixedly connected with check valve (15) of water tank (8), the one end fixedly connected with second blast pipe (16) of check valve (15), the inside fixedly connected with suction fan (14) of reaction box (12), the one end that second blast pipe (16) and kept away from check valve (15) extends to the inside of reaction box (12) and the output fixed connection of suction fan (14), the top fixedly connected with ozone generator (13) of reaction box (12).

2. The vertical type air extraction formation device for the lithium ion power battery according to claim 1, which is characterized in that: the front of syringe (5) is provided with first exhaust port (6), the surface cover of first exhaust port (6) is equipped with first exhaust pipe (7), first exhaust pipe (7) and the one end of keeping away from syringe (5) extend to the inside of water tank (8).

3. The vertical type air extraction formation device for the lithium ion power battery according to claim 1, which is characterized in that: the surface of the air bag (2) is provided with a high-temperature adhesive tape (3), and the air bag (2) and the connecting air pipe (4) are fixed through the high-temperature adhesive tape (3).

4. The vertical type air extraction formation device for the lithium ion power battery according to claim 1, which is characterized in that: the front surface of the water tank (8) is provided with a glass window (9).

5. The vertical type air extraction formation device for the lithium ion power battery according to claim 1, which is characterized in that: the output end of the ozone generator (13) is fixedly connected with a through pipe (19), and one end of the through pipe (19) extends into the reaction box (12).

6. The vertical type air extraction formation device for the lithium ion power battery according to claim 1, which is characterized in that: the side wall of the water tank (8) and the side wall far away from the one-way valve (15) are provided with a water outlet (10), and the side wall of the water tank (8) and the top side of the water outlet (10) are provided with a water inlet (11).

7. The vertical type air extraction formation device for the lithium ion power battery according to claim 1, which is characterized in that: the side wall of the reaction box (12) and one end far away from the second exhaust pipe (16) are provided with a second exhaust port (17), and valves (18) are arranged in the second exhaust port (17), the water inlet (11) and the water outlet (10).

8. The vertical type air extraction formation device for the lithium ion power battery according to claim 1, which is characterized in that: the front surface of the reaction box (12) is fixedly connected with a control box (20), and the suction fan (14) and the ozone generator (13) are both electrically connected with the control box (20).