Functional Organosulfide Electrolyte Promotes an Alternate Reaction Pathway to Achieve High Performance in Lithium-Sulfur Batteries

Shuru Chen, Fang Dai, Mikhail L. Gordin, Zhaoxin Yu, Yue Gao, Jiangxuan Song, Donghai Wang

Research output: Contribution to journalArticle

74 Citations (Scopus)

Abstract

Lithium-sulfur (Li-S) batteries have recently received great attention because they promise to provide energy density far beyond current lithium ion batteries. Typically, Li-S batteries operate by conversion of sulfur to reversibly form different soluble lithium polysulfide intermediates and insoluble lithium sulfides through multistep redox reactions. Herein, we report a functional electrolyte system incorporating dimethyl disulfide as a co-solvent that enables a new electrochemical reduction pathway for sulfur cathodes. This pathway uses soluble dimethyl polysulfides and lithium organosulfides as intermediates and products, which can boost cell capacity and lead to improved discharge-charge reversibility and cycling performance of sulfur cathodes. This electrolyte system can potentially enable Li-S batteries to achieve high energy density.

Original languageEnglish (US)
Pages (from-to)4231-4235
Number of pages5
JournalAngewandte Chemie - International Edition
Volume55
Issue number13
DOIs
StatePublished - Mar 18 2016

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Sulfur
Electrolytes
Polysulfides
Lithium
Cathodes
Redox reactions
Lithium sulfur batteries
polysulfide

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

Cite this

Chen, Shuru ; Dai, Fang ; Gordin, Mikhail L. ; Yu, Zhaoxin ; Gao, Yue ; Song, Jiangxuan ; Wang, Donghai. / Functional Organosulfide Electrolyte Promotes an Alternate Reaction Pathway to Achieve High Performance in Lithium-Sulfur Batteries. In: Angewandte Chemie - International Edition. 2016 ; Vol. 55, No. 13. pp. 4231-4235.
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Functional Organosulfide Electrolyte Promotes an Alternate Reaction Pathway to Achieve High Performance in Lithium-Sulfur Batteries. / Chen, Shuru; Dai, Fang; Gordin, Mikhail L.; Yu, Zhaoxin; Gao, Yue; Song, Jiangxuan; Wang, Donghai.

In: Angewandte Chemie - International Edition, Vol. 55, No. 13, 18.03.2016, p. 4231-4235.

Research output: Contribution to journalArticle

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