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:
Nov. 30, 2021
Filed:
Jul. 09, 2018
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Hyun Gyu Han, Daejeon, KR;
Dae Sik Choi, Daejeon, KR;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
H01M 50/342 (2021.01); H01M 10/04 (2006.01); H01M 10/052 (2010.01); H01M 50/10 (2021.01);
U.S. Cl.
CPC ...
H01M 50/3425 (2021.01); H01M 10/0436 (2013.01); H01M 10/052 (2013.01); H01M 50/10 (2021.01); H01M 2220/30 (2013.01);
Abstract
Disclosed herein is a pouch-shaped secondary battery comprising a pouch-shaped battery case, an electrode assembly having a positive electrode, a separator, and a negative electrode that are sequentially stacked, the electrode assembly being received in the pouch-shaped battery case, and a venting guidance device located in the pouch-shaped battery case, the venting guidance device being configured to form a through-hole for gas discharge in the pouch-shaped battery case using an elastic member, the elastic member being configured to be actuated when a pressure in the pouch-shaped battery case reaches or exceeds a predetermined limit pressure.