Ultrathin nanosheets of Li 2MSiO 4 (M = Fe, Mn) as high-capacity Li-ion battery electrode

Dinesh Rangappa, Kempaiah Devaraju Murukanahally, Takaaki Tomai, Atsushi Unemoto, Itaru Honma

Research output: Contribution to journalArticlepeer-review

289 Citations (Scopus)

Abstract

Novel ultrathin Li 2MnSiO 4 nanosheets have been prepared in a rapid one pot supercritical fluid synthesis method. Nanosheets structured cathode material exhibits a discharge capacity of ∼340 mAh/g at 45 ± 5 °C. This result shows two lithium extraction/insertion performances with good cycle ability without any structural instability up to 20 cycles. The two-dimensional nanosheets structure enables us to overcome structural instability problem in the lithium metal silicate based cathode materials and allows successful insertion/extraction of two complete lithium ions.

Original languageEnglish
Pages (from-to)1146-1151
Number of pages6
JournalNano Letters
Volume12
Issue number3
DOIs
Publication statusPublished - 2012 Mar 14

Keywords

  • Li MnSiO
  • cathode
  • high capacity
  • nanosheets
  • supercritical fluids

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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