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:
Apr. 01, 2025
Filed:
Aug. 04, 2021
Lg Energy Solution, Ltd., Seoul, KR;
Seoul National University R&db Foundation, Seoul, KR;
Soohyun Kim, Daejeon, KR;
Jong-Chan Lee, Seoul, KR;
Kihyun Kim, Daejeon, KR;
Kwonnam Sohn, Daejeon, KR;
Daun Jeong, Seoul, KR;
Chan Yeong Koong, Seoul, KR;
LG Energy Solution, Ltd., Seoul, KR;
Seoul National University R&DB Foundation, Seoul, KR;
Abstract
The present disclosure relates to a positive electrode active material, a preparation method thereof, and a lithium-sulfur battery including the same, more particularly to a positive electrode active material including a particulate structure of a core-shell structure which comprises a core part and a shell part covering the whole surface or a part of the surface of the core part, wherein the core part comprises a sulfur compound, and the shell part comprises a polythiophene acetic acid-polyethylene glycol graft copolymer. The positive electrode active material of the present disclosure has excellent electrochemical reactivity and adsorbs lithium polysulfide to improve capacity and lifetime characteristics of the lithium-sulfur battery.