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

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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.

Original languageEnglish
Pages (from-to)901-903
Number of pages3
JournalChemistry Letters
Volume43
Issue number6
DOIs
Publication statusPublished - 2014

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Acetylene
Cathodes
Carbon
Coatings
Amorphous carbon
Powders
Dissolution
Annealing
Adsorption
Lithium-ion batteries

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

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title = "Carbon-coated Li2S synthesized by poly(vinylpyrrolidone) and acetylene black for lithium ion battery cathodes",
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.",
author = "Jun Liu and Hiroki Nara and Tokihiko Yokoshima and Toshiyuki Momma and Tetsuya Osaka",
year = "2014",
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pages = "901--903",
journal = "Chemistry Letters",
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publisher = "Chemical Society of Japan",
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T1 - Carbon-coated Li2S synthesized by poly(vinylpyrrolidone) and acetylene black for lithium ion battery cathodes

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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U2 - 10.1246/cl.140116

DO - 10.1246/cl.140116

M3 - Article

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EP - 903

JO - Chemistry Letters

JF - Chemistry Letters

SN - 0366-7022

IS - 6

ER -