Title:
CELL AND ELECTRICAL APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/066024
Kind Code:
A1
Abstract:
The embodiments of the present application relate to the technical field of batteries. Disclosed are a cell and an electrical apparatus. The cell comprises a cell body and a housing, the housing having an accommodation cavity, the cell body being accommodated in the accommodation cavity, and the housing has a liquid injection hole in communication with the accommodation cavity. The cell also comprises: a sealing nail vertically installed at the liquid injection hole and fixed to the casing, the sealing nail having a first through hole in communication with the accommodation cavity; a thermal deformation portion disposed in the first through hole and fixed with the sealing nail; and an elastic member having a second through hole, the elastic member being sleeved on the sealing nail by means of the second through hole and fixed with the liquid injection hole. The thermal deformation portion is configured to undergo deformation when the temperature is above a preset threshold, so as to cause a pressure relief passage in communication with each of two ends of the first through hole to be formed in the first through hole, making it possible to discharge gas in the cell and reduce the safety hazard of the cell exploding. In addition, providing an elastic member can improve sealing of the liquid injection hole.
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Inventors:
LIU YA (CN)
Application Number:
PCT/CN2022/123488
Publication Date:
April 27, 2023
Filing Date:
September 30, 2022
Export Citation:
Assignee:
NINGDE AMPEREX TECHNOLOGY LTD (CN)
International Classes:
H01M50/627; H01M50/183; H01M50/325
Foreign References:
| CN114039175A | 2022-02-11 | |||
| CN205376589U | 2016-07-06 | |||
| CN211980653U | 2020-11-20 | |||
| CN113131083A | 2021-07-16 | |||
| CN212277320U | 2021-01-01 | |||
| CN208706763U | 2019-04-05 | |||
| CN205790092U | 2016-12-07 | |||
| JP2013101789A | 2013-05-23 | |||
| CN202111211612A | 2021-10-18 |
Attorney, Agent or Firm:
LIUJIA CHINA IP LAW OFFICE (CN)
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