リチウム電池電極材料Li_2RuO_3の多電子反応  [in Japanese] Multiple Electron Reaction of Li_2RuO_3 Electrode for Lithium Batteries  [in Japanese]

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Author(s)

    • 田港 聡 TAMINATO Sou
    • 東京工業大学大学院総合理工学研究科 Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology
    • 平山 雅章 HIRAYAMA Masaaki
    • 東京工業大学大学院総合理工学研究科 Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology
    • 鄭 月明 ZHENG Yueming
    • 東京工業大学大学院総合理工学研究科 Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology
    • 菅野 了次 KANNO Ryoji
    • 東京工業大学大学院総合理工学研究科 Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology

Abstract

Lithium excess layered rocksalt material Li<sub>2</sub>RuO<sub>3</sub> was synthesized by a solid-state reaction, and intercalation properties were characterized by electrochemical and structural investigations. The first discharge capacities of the Li<sub>2</sub>RuO<sub>3</sub> electrode operated in charge/discharge ranges of 3.0−4.5 V, 1.0−4.5 V and 0.5−4.5 V were 165 mAh g<sup>−1</sup>, 450 mAh g<sup>−1</sup>, and 845 mAh g<sup>−1</sup>, respectively. X-ray absorption near edge structure spectra indicated that the valence states of Ru ions reversibly changed between 5+ and 0 at the range of 1.0−4.5 V. The Li<sub>2</sub>RuO<sub>3</sub> electrode reversibly delivered a five-electron reaction in the charge/discharge ranges of 1.0−4.5 V.

Journal

  • Journal of the Japan Society of Powder and Powder Metallurgy

    Journal of the Japan Society of Powder and Powder Metallurgy 60(1), 24-28, 2013-01-15

    Japan Society of Powder and Powder Metallurgy

References:  20

Codes

  • NII Article ID (NAID)
    10031148169
  • NII NACSIS-CAT ID (NCID)
    AN00222724
  • Text Lang
    JPN
  • Article Type
    ART
  • ISSN
    05328799
  • NDL Article ID
    024245657
  • NDL Call No.
    Z17-274
  • Data Source
    CJP  NDL  J-STAGE 
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