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. 31, 2026
Filed:
Aug. 10, 2021
Applicants:
Lg Energy Solution, Ltd., Seoul, KR;
Seoul National University R&db Foundation, Seoul, KR;
Inventors:
Soohyun Kim, Daejeon, KR;
Jong-Chan Lee, Seoul, KR;
Kihyun Kim, Daejeon, KR;
Kwonnam Sohn, Daejeon, KR;
Daun Jeong, Seoul, KR;
Assignees:
LG Energy Solution, Ltd., Seoul, KR;
Seoul National University R&DB Foundation, Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/62 (2006.01); C01B 32/198 (2017.01); H01M 4/133 (2010.01); H01M 10/052 (2010.01);
U.S. Cl.
CPC ...
H01M 4/625 (2013.01); C01B 32/198 (2017.08); H01M 4/133 (2013.01); H01M 10/052 (2013.01);
Abstract
Disclosed are a positive electrode coating material for a lithium secondary battery including graphene oxide surface-modified with cationic functional groups, a preparation method thereof, and a positive electrode and a lithium secondary battery comprising the coating material. The positive electrode coating material prevents the leaching of lithium polysulfide, thereby improving battery performance.