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. 22, 2020
Filed:
Nov. 20, 2017
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Assignee:
LG Chem, Ltd., , KR;
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/34 (2006.01); H01M 2/12 (2006.01);
U.S. Cl.
CPC ...
H01M 2/345 (2013.01); H01M 2/34 (2013.01); H01M 2200/20 (2013.01);
Abstract
Disclosed is a secondary battery including a current blocking device. According to the present invention, the secondary battery in which when the secondary battery increases in volume due to overcharging, current flowing to the secondary battery is interrupted by using expansion force due to the increase in volume to improve safety and reliability may be manufactured.