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. 10, 2024
Filed:
Oct. 25, 2019
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Assignee:
LG ENERGY SOLUTION, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 50/431 (2021.01); H01M 10/0525 (2010.01); H01M 50/403 (2021.01); H01M 50/443 (2021.01); H01M 50/449 (2021.01);
U.S. Cl.
CPC ...
H01M 50/431 (2021.01); H01M 10/0525 (2013.01); H01M 50/403 (2021.01); H01M 50/443 (2021.01); H01M 50/449 (2021.01);
Abstract
A functional separator capable of improving the capacity and lifetime of a battery by coating a material capable of reducing lithium polysulfide on a separator surface in order to resolve the problems caused by leaching of lithium polysulfide, a preparation method thereof and a lithium secondary battery including the same. The functional separator includes a base separator; a conductive carbon layer on the surface of the base separator; and a metal oxide formed on at least one of an interior and the surface of the conductive carbon layer.