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:
Sep. 15, 2026
Filed:
Mar. 21, 2023
Contemporary Amperex Technology (Hong Kong) Limited, Hong Kong, CN;
Mingguang Gu, Ningde, CN;
Xiaobo Chen, Ningde, CN;
Yao Li, Ningde, CN;
Xuehui Wang, Ningde, CN;
Yucang Hao, Ningde, CN;
CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong, CN;
Abstract
A pressure relief apparatus includes a pressure relief body and a plurality of score grooves. The pressure relief body includes a pressure relief portion, and the pressure relief portion has a first surface and a second surface opposite to each other in a thickness direction of the pressure relief portion. A plurality of score grooves are sequentially arranged at the pressure relief portion in a direction from the first surface to the second surface. In two adjacent score grooves in the thickness direction, a maximum width of a score groove farther away from the first surface is less than a minimum width of a score groove closer to the first surface.