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:
Jul. 21, 2026
Filed:
Jun. 12, 2023
Contemporary Amperex Technology (Hong Kong) Limited, Hong Kong, CN;
Wenlin Zhou, Ningde, CN;
Kaihuan Yang, Ningde, CN;
Ting Zheng, Ningde, CN;
Quankun Li, Ningde, CN;
Peng Wang, Ningde, CN;
Mingguang Gu, Ningde, CN;
CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong, CN;
Abstract
A pressure relief apparatus includes a pressure relief part having a first surface and a second surface opposite to each other in a thickness direction of the pressure relief part, and a plurality of stages of score grooves sequentially arranged on the pressure relief part in a direction from the first surface to the second surface. Of two adjacent stages of score grooves in the thickness direction, one stage of score groove that is farther from the first surface is arranged on a bottom surface of another stage of score groove that is closer to the first surface.