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. 30, 2025
Filed:
Jul. 27, 2021
Applicant:
SK Innovation Co., Ltd., Seoul, KR;
Inventors:
Jong Hyuk Lee, Daejeon, KR;
Su Hee Han, Daejeon, KR;
Assignee:
SK ON CO., LTD., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 50/227 (2021.01); H01M 10/0525 (2010.01); H01M 50/211 (2021.01);
U.S. Cl.
CPC ...
H01M 50/227 (2021.01); H01M 10/0525 (2013.01); H01M 50/211 (2021.01);
Abstract
A lithium secondary battery according to an embodiment of the present invention includes a stack structure including a plurality of pouch cells and an elastic foam layer formed on an outer surface of at least one of the plurality of pouch cells. A uniform pressure may be provided by the elastic foam layer to prevent deformation of the battery due to contraction and expansion of the electrode.