Title:
LITHIUM BATTERY AND METHOD FOR TESTING AIRTIGHTNESS OF LITHIUM BATTERY
Document Type and Number:
WIPO Patent Application WO/2021/057763
Kind Code:
A1
Abstract:
The present invention relates to a lithium battery and a method for testing the airtightness of a lithium battery. The lithium battery comprises: a battery body, the battery body being provided with a liquid injection hole and a liquid injection port in communication with the liquid injection hole; a sealing plug forming a sealing fit with the liquid injection hole; a repair welding sheet in welding seal with the liquid injection port; and a gas bag which contains a gas to be tested and is provided between the sealing plug and the repair welding sheet. When the repair welding sheet is in welding seal with the liquid injection port, the gas bag can be fused broken, so that said gas is released between the sealing plug and the repair welding sheet.
Inventors:
HU ZHONGHAN (CN)
Application Number:
PCT/CN2020/116997
Publication Date:
April 01, 2021
Filing Date:
September 23, 2020
Export Citation:
Assignee:
HUNAN HONGYI TECH CO LTD (CN)
International Classes:
H01M2/36
Foreign References:
| CN210837928U | 2020-06-23 | |||
| CN210837928U | 2020-06-23 | |||
| CN210837981U | 2020-06-23 | |||
| CN206893707U | 2018-01-16 | |||
| CN106654354A | 2017-05-10 | |||
| CN2833901Y | 2006-11-01 | |||
| JP2016081826A | 2016-05-16 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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