Amorphous TiS4 positive electrode for lithium-sulfur secondary batteries

Atsushi Sakuda, Noboru Taguchi, Tomonari Takeuchi, Hironori Kobayashi, Hikari Sakaebe, Kuniaki Tatsumi, Zempachi Ogumi

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)

Abstract

Composite electrodes based on amorphous titanium polysulfide and acetylene black were mechanically prepared, and their performance was investigated. The amorphous TiS4 and acetylene black composites were discharged and charged with a high reversible capacity of 563 mAh g- 1 in the 1.9-3.0 voltage range. The Coulombic efficiency of the composite was higher than that of a sulfur electrode because the dissolution of the polysulfide into electrolytes was suppressed. Amorphization and dispersion of carbon inside the particles were effective in improving the performance of the titanium polysulfide electrodes.

Original languageEnglish
Pages (from-to)71-75
Number of pages5
JournalElectrochemistry Communications
Volume31
DOIs
Publication statusPublished - Jun 2013
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electrochemistry

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