Lithium silicon sulfide as an anode material in all-solid-state lithium batteries

Bui Thi Hang, Tsuyoshi Ohnishi, Minoru Osada, Xiaoxiong Xu, Kazunori Takada, Takayoshi Sasaki

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

The electrochemical properties of Li2SiS3 were investigated in a solid electrolyte. Li2SiS3 was converted to elemental Si, and the resultant Si was formed into Si-Li alloy in the reduction process; however, the reverse reaction was not completed due to the loss of electronic conduction upon reoxidation. FeS was dispersed as a conductive additive in Li2SiS3 films by pulsed laser deposition (PLD). The addition allowed successive reactions to proceed at a large capacity with small capacity-fading during the cycling process in spite of the small FeS fraction. This result indicates that Li2SiS3 + FeS thin film is a promising anode for solid-state lithium batteries.

Original languageEnglish
Pages (from-to)3323-3327
Number of pages5
JournalJournal of Power Sources
Volume195
Issue number10
DOIs
Publication statusPublished - 2010 May 15
Externally publishedYes

Keywords

  • Anode material
  • Iron sulfide
  • Lithium silicon sulfide
  • Pulsed laser deposition
  • Solid-state lithium battery

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Physical and Theoretical Chemistry

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