The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 02, 2024
Filed:
Jul. 14, 2020
Applicant:
Contemporary Amperex Technology Co., Limited, Ningde, CN;
Inventors:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED, Ningde, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 50/325 (2021.01); H01M 50/147 (2021.01); H01M 50/155 (2021.01); H01M 50/183 (2021.01); H01M 50/184 (2021.01); H01M 50/30 (2021.01); H01M 50/358 (2021.01); H01M 50/383 (2021.01);
U.S. Cl.
CPC ...
H01M 50/325 (2021.01); H01M 50/147 (2021.01); H01M 50/155 (2021.01); H01M 50/183 (2021.01); H01M 50/184 (2021.01); H01M 50/358 (2021.01); H01M 50/383 (2021.01); H01M 50/394 (2021.01);
Abstract
A cover assembly of a secondary battery and a secondary battery. The cover assembly includes: a cover plate including a gas vent; a gas exhaust valve configured to seal the gas vent and deform in response to an increase in temperature to get out of a state of sealing the gas vent; and a protective part at least partially covering the gas vent and having a gas permeability coefficient smaller than a gas permeability coefficient of the gas exhaust valve.