Carbon-coated Li2S synthesized by poly(vinylpyrrolidone) and acetylene black for lithium ion battery cathodes

Jun Liu; Hiroki Nara; Tokihiko Yokoshima; Toshiyuki Momma; Tetsuya Osaka

doi:10.1246/cl.140116

Carbon-coated Li₂S synthesized by poly(vinylpyrrolidone) and acetylene black for lithium ion battery cathodes

Jun Liu, Hiroki Nara, Tokihiko Yokoshima, Toshiyuki Momma, Tetsuya Osaka^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

A carbon-coated Li₂S was prepared through an adsorption and successive annealing process by using poly(vinylpyrrolidone) (PVP) and acetylene black (AB) as carbon source with Li₂S powder. The coating layer was composed of amorphous carbon and embedded AB particles. The carbon coating was found to effectively alleviate the dissolution of polysulfide and the discharge capacity at the first 15 cycles was 800mAh g^-1 with gradual fading afterward.

Original language	English
Pages (from-to)	901-903
Number of pages	3
Journal	Chemistry Letters
Volume	43
Issue number	6
DOIs	https://doi.org/10.1246/cl.140116
Publication status	Published - 2014

ASJC Scopus subject areas

Chemistry(all)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1246/cl.140116

Cite this

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abstract = "A carbon-coated Li2S was prepared through an adsorption and successive annealing process by using poly(vinylpyrrolidone) (PVP) and acetylene black (AB) as carbon source with Li2S powder. The coating layer was composed of amorphous carbon and embedded AB particles. The carbon coating was found to effectively alleviate the dissolution of polysulfide and the discharge capacity at the first 15 cycles was 800mAh g-1 with gradual fading afterward.",

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AU - Liu, Jun

AU - Nara, Hiroki

AU - Yokoshima, Tokihiko

AU - Momma, Toshiyuki

AU - Osaka, Tetsuya

PY - 2014

Y1 - 2014

N2 - A carbon-coated Li2S was prepared through an adsorption and successive annealing process by using poly(vinylpyrrolidone) (PVP) and acetylene black (AB) as carbon source with Li2S powder. The coating layer was composed of amorphous carbon and embedded AB particles. The carbon coating was found to effectively alleviate the dissolution of polysulfide and the discharge capacity at the first 15 cycles was 800mAh g-1 with gradual fading afterward.

AB - A carbon-coated Li2S was prepared through an adsorption and successive annealing process by using poly(vinylpyrrolidone) (PVP) and acetylene black (AB) as carbon source with Li2S powder. The coating layer was composed of amorphous carbon and embedded AB particles. The carbon coating was found to effectively alleviate the dissolution of polysulfide and the discharge capacity at the first 15 cycles was 800mAh g-1 with gradual fading afterward.

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