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Flexibly packaged lithium battery evacuation apparatus and use method thereof

A soft-pack lithium battery and evacuation device technology, which is applied in the manufacture of electrolyte batteries, non-aqueous electrolyte batteries, climate sustainability, etc., can solve the problems of electrolyte overflow and long vacuuming time, so as to reduce overflow, avoid pollution, The effect of reducing the evacuation time

Active Publication Date: 2016-05-04
WANXIANG 123 CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is mainly to provide an evacuation device for a soft-packed lithium battery, which is provided with a Combined suction cup, through the combined suction cup, vacuumize the soft-packed lithium battery twice, reducing the vacuuming time and reducing the electrolyte overflow caused by negative pressure

Method used

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  • Flexibly packaged lithium battery evacuation apparatus and use method thereof
  • Flexibly packaged lithium battery evacuation apparatus and use method thereof
  • Flexibly packaged lithium battery evacuation apparatus and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Adopt the present invention to carry out evacuation treatment to the soft pack lithium battery that has been filled with electrolyte, the steps are as follows:

[0030] (1) Fix the soft-packed lithium battery 3 filled with electrolyte in the vacuum chamber 5, clamp and position it through the splint 4, seal the vacuum chamber 5, switch the valve 10, turn on the vacuum pump, and perform the first vacuuming, the vacuum chamber After the vacuum degree inside reaches -0.07MPa, switch the valve 10 and stop vacuuming;

[0031] (2) Fix the battery airbag 1 by fixing the suction cup 11 and driving the suction cup 12, then drive the bayonet 14 to pierce the battery airbag 1, and start exhausting, the exhausting time is 30s, and one combined suction cup is set;

[0032] (3) After the exhaust is completed, switch the valve 10 and carry out the second vacuuming. After the vacuum degree reaches -0.093MPa, maintain it for 20s to fully exhaust the gas inside the soft-pack lithium batt...

Embodiment 2

[0035] Adopt the present invention to carry out evacuation treatment to the soft pack lithium battery that has been filled with electrolyte, the steps are as follows:

[0036] (1) Fix the soft-packed lithium battery 3 filled with electrolyte in the vacuum chamber 5, clamp and position it through the splint 4, seal the vacuum chamber 5, switch the valve 10, turn on the vacuum pump, and perform the first vacuuming, the vacuum chamber After the vacuum inside reaches -0.08MPa, switch the valve 10 and stop vacuuming;

[0037] (2) Fix the battery airbag 1 by fixing the suction cup 11 and driving the suction cup 12, then drive the bayonet 14 to pierce the battery airbag 1, and start exhausting, the exhausting time is 20s, and the combined suction cups are set to 3;

[0038] (3) After the exhaust is completed, switch the valve 10 and carry out the second vacuuming. After the vacuum degree reaches -0.094MPa, maintain it for 12 seconds to fully exhaust the gas inside the soft-pack lithi...

Embodiment 3

[0041] Adopt the present invention to carry out evacuation treatment to the soft pack lithium battery that has been filled with electrolyte, the steps are as follows:

[0042] (1) Fix the soft-packed lithium battery 3 filled with electrolyte in the vacuum chamber 5, clamp and position it through the splint 4, seal the vacuum chamber 5, switch the valve 10, turn on the vacuum pump, and perform the first vacuuming, the vacuum chamber After the vacuum inside reaches -0.09MPa, switch valve 10 and stop vacuuming;

[0043] (2) Fix the battery airbag 1 by fixing the suction cup 11 and driving the suction cup 12, then drive the bayonet 14 to pierce the battery airbag 1, and start to exhaust, the exhaust time is 10s, and the number of combined suction cups is set to 6;

[0044] (3) After the exhaust is completed, switch the valve 10 and carry out the second vacuuming. After the vacuum degree reaches -0.095MPa, keep it for 5s to fully exhaust the gas inside the soft-pack lithium battery...

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Abstract

The invention discloses a flexibly packaged lithium battery evacuation apparatus and a use method thereof. The purpose of the invention is to solve the problems of long vacuum pumping time and electrolyte overflow in the vacuum pumping and dwelling process of present flexibly packaged lithium batteries. The flexibly packaged lithium battery evacuation apparatus comprises a vacuum chamber and a vacuum pipeline, a vacuum adsorption port is arranged in the vacuum chamber, the vacuum pipeline is connected with the vacuum adsorption port, a combined sucker is arranged in the vacuum chamber, the combined sucker comprises a fixed sucker and a telescopic driving sucker, the fixed sucker is fixedly arranged on the inner wall of the vacuum chamber, the driving sucker is arranged facing to the fixed sucker and is connected with the vacuum adsorption port in the vacuum chamber, and a telescopic bayonet is arranged in the driving sucker. Two-stage vacuum pumping of a flexibly packaged lithium battery is carried out through the combined sucker, so the vacuum pumping time is shortened, electrolyte overflow is reduced, and pollution of the electrolyte gasified at a negative pressure to the surface of the battery is avoided.

Description

technical field [0001] The invention relates to the field of lithium battery production, in particular to an evacuation device for a soft-pack lithium battery and a method for using the same. Background technique [0002] Soft pack lithium battery is the third generation of power lithium battery developed on the basis of the original steel case, aluminum case and plastic case battery. It is lighter, thinner, long cycle life, good safety performance, high energy density, and discharge With the advantages of stable platform, excellent power performance, environmental protection and no pollution, it is widely used in electronic equipment and devices such as electric bicycles, electric motorcycles, electric vehicles, mobile phones, and notebook computers. [0003] In the production process of the soft-pack lithium battery, after the liquid injection is completed, the lithium battery needs to be vacuumed, and the gas in the battery is discharged through vacuum negative pressure, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/058
CPCH01M10/058Y02E60/10Y02P70/50
Inventor 董峰沈利江任基峰徐奕鑫徐炜东
Owner WANXIANG 123 CO LTD
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