Positive electrode active material for lithium-sulfur battery, preparation method thereof and lithium-sulfur battery comprising same

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United States of America

PATENT NO 12266789
APP PUB NO 20220393157A1
SERIAL NO

17776508

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION1 GWANAK-RO GWANAK-GU SEOUL 08826
LG ENERGY SOLUTION LTDPARC 1 TOWER ONE 108 YEOUI-DAERO YEONGDEUNGPO-GU SEOUL 07335

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jeong, Daun Seoul, KR 22 11
Kim, Kihyun Daejeon, KR 229 2074
Kim, Soohyun Daejeon, KR 98 218
Koong, Chan Yeong Seoul, KR 1 0
Lee, Jong-Chan Seoul, KR 58 300
Sohn, Kwonnam Daejeon, KR 66 71

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