Lithium-sulfur battery separation film having composite coating layer including polydopamine, manufacturing method therefor, and lithium-sulfur battery comprising same폴리도파민을 포함하는 복합 코팅층이 형성된 리튬-황 전지용 분리막, 이의 제조방법 및 이를 포함하는 리튬-황 전지

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The present invention relates to a lithium-sulfur battery separation film having a composite coating layer including polydopamine, and a manufacturing method therefor and, more specifically, to a lithium-sulfur battery for suppressing elution of lithium polysulfide by applying a composite coating layer including polydopamine and a conductive material to one surface of a separation film. The lithium-sulfur battery according to the present invention prevents elution and diffusion by adsorbing, through a porous structure of the polydopamine, the lithium polysulfide eluted from a cathode, and alsoprovides a reaction site of a cathode active material by providing additional electrical conductivity, thereby improving capacity and lifespan characteristics of the battery.
Assignee
KAIST, LG CHEM, Ltd.
Country
CC (Cocos Islands)
Application Date
2017-01-16
Application Number
201780002678.5
Registration Date
2020-10-20
Registration Number
107925042
URI
http://hdl.handle.net/10203/278191
Appears in Collection
CH-Patent(특허)
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