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. 01, 2021
Filed:
Aug. 22, 2017
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Jooyong Song, Daejeon, KR;
Myung Ki Lee, Daejeon, KR;
Hee Seok Jeong, Daejeon, KR;
Ji Hee Ahn, Daejeon, KR;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
H01M 50/124 (2021.01); H01M 10/0525 (2010.01); H01M 50/116 (2021.01); H01M 50/126 (2021.01);
U.S. Cl.
CPC ...
H01M 50/124 (2021.01); H01M 10/0525 (2013.01); H01M 50/116 (2021.01); H01M 50/126 (2021.01); H01M 2200/00 (2013.01);
Abstract
The present invention relates to a secondary battery that is capable of preventing short circuit from occurring when a nail test is performed. Also, the secondary battery includes a case accommodating an electrolyte and an electrode assembly therein, and the case includes an external layer exposed to the outside, an internal layer disposed in the case, and a short-circuit prevention layer provided in a liquid phase between the external layer and the internal layer.