Structure analyses of Fe-substituted Li2S-based positive electrode materials for Li-S batteries

Tomonari Takeuchi, Hiroyuki Kageyama, Noboru Taguchi, Koji Nakanishi, Tomoya Kawaguchi, Koji Ohara, Katsutoshi Fukuda, Atsushi Sakuda, Toshiaki Ohta, Toshiharu Fukunaga, Hikari Sakaebe, Hironori Kobayashi, Eiichiro Matsubara

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


The structure of Fe-substituted Li2S-based positive electrode material Li8FeS5 was analyzed using high-energy X-ray total scattering measurements. Pair distribution function (PDF) analyses indicated that the mechanically milled Li8FeS5 sample could best be described as having an anti-fluorite structure in which Fe ions partially occupy Li sites in the Fm3¯m unit cell. The electrochemical properties of a cell utilizing Li8FeS5 as the positive electrode were also consistent with this structural model.

Original languageEnglish
Pages (from-to)387-391
Number of pages5
JournalSolid State Ionics
Publication statusPublished - 2018 Jul
Externally publishedYes


  • Fe-substituted lithium sulfide
  • High capacity
  • Lithium sulfur battery
  • Low crystalline material
  • Pair distribution function analysis

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics


Dive into the research topics of 'Structure analyses of Fe-substituted Li2S-based positive electrode materials for Li-S batteries'. Together they form a unique fingerprint.

Cite this