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:
Mar. 29, 2022
Filed:
Feb. 19, 2019
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Sunjin Kim, Daejeon, KR;
Doo Kyung Yang, Daejeon, KR;
Assignee:
LG ENERGY SOLUTION, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 50/44 (2021.01); H01M 10/0525 (2010.01); H01M 50/411 (2021.01); H01M 50/46 (2021.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 50/44 (2021.01); H01M 10/0525 (2013.01); H01M 50/411 (2021.01); H01M 50/46 (2021.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01);
Abstract
A separator for a lithium-sulfur battery including a separator base; and a coating layer present on one or more surface of the separator base, wherein the coating layer includes a structural unit (A) derived from one or more compound including (i) one or more group selected from the group consisting of a catechol group and a pyrogallol group, and (ii) one or more sulfonic acid group; and a structural unit (B) derived from dopamine, and wherein the coating layer includes a sulfonic acid anion group. Also, a lithium-sulfur battery manufactured using the same, and a method for preparing the separator.