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. 23, 2025
Filed:
Mar. 31, 2021
Applicant:
Lg Energy Solution, Ltd., Seoul, KR;
Inventors:
Assignee:
LG ENERGY SOLUTION, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 50/449 (2021.01); H01M 10/052 (2010.01); H01M 10/42 (2006.01); H01M 50/403 (2021.01); H01M 50/417 (2021.01);
U.S. Cl.
CPC ...
H01M 50/449 (2021.01); H01M 10/052 (2013.01); H01M 10/4235 (2013.01); H01M 50/403 (2021.01); H01M 50/417 (2021.01); H01M 2200/00 (2013.01);
Abstract
A separator for a lithium secondary battery, a method for manufacturing the same and a lithium secondary battery comprising the same, where the separator includes a porous polymer substrate having a plurality of pores and a polymer coating layer on at least one surface of the porous polymer substrate. The polymer coating layer comprises a thermosetting phenol-containing resin having at least one hydroxyl group and at least one aromatic ring. A coating amount of the thermosetting phenol-containing resin is 0.01 g/mto 3 g/mof the porous polymer substrate based on one polymer coating layer.