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Lithium battery liquid injection device and liquid injection method thereof

A lithium battery injection and electrolyte technology, applied in the direction of battery pack parts, circuits, electrical components, etc., can solve the problems of large surface tension, difficulty in liquid electrolyte, etc., and achieve the effect of solving surface tension

Active Publication Date: 2019-01-29
宁波亿纬创能锂电池有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Generally, lithium-ion batteries generally use the required amount of electrolyte to be injected all at once, and the electrolyte will generate a large surface tension with the gap between the diaphragm and pole piece of the battery cell, which will cause difficulty in the electrolyte.

Method used

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  • Lithium battery liquid injection device and liquid injection method thereof
  • Lithium battery liquid injection device and liquid injection method thereof

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Embodiment Construction

[0021] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0022] Such as figure 1 and figure 2 As shown, a lithium battery liquid injection device in this embodiment includes a steel case 1, a sealing ring 2 matching with the port of the steel case 1, and an electrolyte spraying device 3 matching with the sealing ring 2 , the electrolyte spraying device 3 includes a pressure chamber 31 , a vacuum channel 32 , and atomizing nozzles 33 uniformly distributed on the bottom surface of the pressure chamber 31 .

[0023] Specifically, in this embodiment, the side wall around the port of the steel shell 1 protrudes inwardly with a flange 11 , and the sealing ring 2 is erected on the upper surface of the flange 11 . This flange 11 is the sealing roll groove when the steel shell is sealed.

[0024] In this embodiment, the middle part of the sealing ring 2 is pro...

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PUM

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Abstract

The invention discloses a lithium battery liquid injection device and a liquid injection method thereof, comprising a steel shell, a sealing ring matched with the port of the steel shell, and an electrolyte spraying device matched with the sealing ring. The electrolyte spraying device includes a pressure chamber, a vacuum channel, and atomizing nozzles uniformly distributed on the bottom surface of the pressure chamber. The lithium battery liquid injection device designed with this structure can make the electrolyte liquid injection smoothly, and effectively solve the problem of difficulty in the electrolyte solution caused by the surface tension generated between the electrolyte solution and the gap between the diaphragm and the pole piece.

Description

technical field [0001] The invention relates to the technical field of power batteries, in particular to a lithium battery liquid injection device and a liquid injection method thereof. Background technique [0002] Generally, lithium-ion batteries generally use the required amount of electrolyte to be injected all at once, and the electrolyte will generate a large surface tension with the gap between the diaphragm and pole piece of the battery cell, which will cause difficulty in the electrolyte. Contents of the invention [0003] The object of the present invention is to provide a lithium battery liquid injection device and a liquid injection method thereof capable of smooth electrolyte injection. [0004] For reaching this purpose, the present invention adopts following technical scheme: [0005] A liquid injection device for a lithium battery, comprising a steel case, a seal ring matched with the port of the steel case, and an electrolyte spray device matched with the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/36H01M50/60
CPCH01M50/60Y02E60/10
Inventor 徐悦斌何巍方荣主宋志新吕正中刘金成
Owner 宁波亿纬创能锂电池有限公司