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:
Dec. 10, 2024
Filed:
Oct. 22, 2020
Applicant:
Lg Energy Solution, Ltd., Seoul, KR;
Inventors:
Jin-Woo Heo, Daejeon, KR;
Hye-Jin Kwon, Daejeon, KR;
Jong-Heon Kwak, Daejeon, KR;
Sang-Ha Son, Daejeon, KR;
Assignee:
LG ENERGY SOLUTION, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 50/426 (2021.01); C08F 293/00 (2006.01); H01M 10/0525 (2010.01); H01M 50/403 (2021.01); H01M 50/446 (2021.01); H01M 50/449 (2021.01);
U.S. Cl.
CPC ...
H01M 50/426 (2021.01); C08F 293/005 (2013.01); H01M 10/0525 (2013.01); H01M 50/403 (2021.01); H01M 50/446 (2021.01); H01M 50/449 (2021.01); C08F 2438/01 (2013.01);
Abstract
A separator for a lithium secondary battery, including: a porous polymer substrate; and a crosslinked porous coating layer on at least one surface of the porous polymer substrate. The crosslinked porous coating layer includes inorganic particles and a crosslinkable binder polymer crosslinked through urethane crosslinking. The separator has improved heat resistance as compared to the conventional separators and maintains adhesion to an electrode. A lithium secondary battery including the separator is also disclosed.