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Cited by 226

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Electrochemical (De)Lithiation of 1D Sulfur Chains in Li–S Batteries: A Model System Study

Yang, Chun-Peng, Yin, Ya-Xia, Guo, Yu-Guo, Wan, Li-Jun·2015·Journal of the American Chemical Society

Abstract

In contrast to the extensive studies of the electrochemical behavior of conventional cyclic S8 molecules in Li-S batteries, there has been hardly any investigation of the electrochemistry of S chains. Here we use S chains encapsulated in single- and double-walled carbon nanotubes as a model system and report the electrochemical behavior of 1D S chains in Li-S batteries. An electrochemical test shows that S chains have high electrochemical activity during lithiation and extinctive electrochemistry compared with conventional S8. The confined steric effect provides Li(+) solid-phase diffusion access to insert/egress reactions with S chains. During lithiation, the long S chains spontaneously become short chains, which show higher discharge plateaus and better kinetics. The unique electrochemistry of S chains supplements the existing knowledge of the S cathode mechanism and provides avenues for rational design of S cathode materials in Li-S batteries.

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Metadata

Authors
Yang, C.-P., Yin, Y.-X., Guo, Y.-G., & Wan, L.-J.
Venue
Journal of the American Chemical Society
Published
2015-02-09
Volume
137
Issue
6
Pages
2215-2218
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W1976453341
Cited by
226
References
1
FWCI
16.04
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Electrochemical (De)Lithiation of 1D Sulfur Chains in Li–S Batteries: A Model System Study. https://app.cochat.ai/papers/10.1021/ja513009v
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Yang, C.-P., Yin, Y.-X., Guo, Y.-G., & Wan, L.-J. (2015). Electrochemical (De)Lithiation of 1D Sulfur Chains in Li–S Batteries: A Model System Study. Journal of the American Chemical Society. https://doi.org/10.1021/ja513009v

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