Cathode characteristics of layered rocksalt oxide, Li2PtO3

Shigeto Okada, Jun Ichi Yamaki, Kaoru Asakura, Hideaki Ohtsuka, Hajime Arai, Shin Ichi Tobishima, Yoji Sakurai

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

The layered rocksalt-type oxide, Li2PtO3, is the first full 4 V class cathode material among 5d metal compounds. We investigated the electrochemical, structural and kinetic characteristics of the 4 V region. The volumetric capacity of the 4 V plateau on discharge was comparable to that of LiCoO2. Moreover, the volume change during cycling was less than that of LiCoO2. We measured the total conductivity and Li diffusivity in Li2PtO3 by the ac impedance and current-pulse relaxation techniques, respectively.

Original languageEnglish
Pages (from-to)329-334
Number of pages6
JournalElectrochimica Acta
Volume45
Issue number1
DOIs
Publication statusPublished - Sep 30 1999

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Electrochemistry

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