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:
Jun. 07, 2022
Filed:
Jan. 23, 2019
Lg Chem, Ltd., Seoul, KR;
Yong Su Choi, Daejeon, KR;
Sang Hun Kim, Daejeon, KR;
Na Yoon Kim, Daejeon, KR;
Hyung Kyun Yu, Daejeon, KR;
Abstract
A venting device inserted into a sealing part of a pouch of a secondary battery according to an embodiment of the present invention includes: a housing inserted between confronting surfaces of the sealing part so as to be sealed together with the sealing part, the housing being made from a metal plate; a gasket made of a polymer and disposed in the housing and through which a passage is defined providing gas communication between an inside and an outside of the pouch; and a plate spring made of a metal, the plate spring being disposed in the housing and assembled with the gasket, the plate spring being configured to open and close the passage in response to a change in an internal pressure of the pouch, wherein the housing includes a crimping part crimped together with the gasket on an upper end of the housing.