3次元的格子骨格を有するMP_2O_7(M=Mo, W)に対するアルカリメタルの電気化学的挿入反応 Electrochemical Alkali Metal Intercalation into the 3D-framework of MP_2O_7 (M=Mo, W)

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Abstract

<p>Lithium and sodium insertions into pyrophosphates MP<sub>2</sub>O<sub>7</sub> (M = Mo, W) were investigated electrochemically as possible cathodes for ion-transfer batteries. Lithium and sodium were reversibly incorporated in the 3D-framework of pyrophosphates MP<sub>2</sub>O<sub>7</sub> (M = Mo, W) with liquid organic electrolytes at room temperature. The first discharge capacities were 95 mAhg<sup>−1</sup> for A<sub>1.0</sub>MoP<sub>2</sub>O<sub>7</sub> (A = Li, Na) and 295 mAhg<sup>−1</sup> for A<sub>4.0</sub>WP<sub>2</sub>O<sub>7</sub> (A = Li, Na), respectively. The guest (Li or Na) insertion into WP<sub>2</sub>O<sub>7</sub> induced a transition to the amorphous phase, whereas the insertion into MoP<sub>2</sub>O<sub>7</sub> proceeded topotactically with a smooth single phase reaction.</p>

Journal

  • Electrochemistry

    Electrochemistry 71(5), 308-312, 2003-05-05

    The Electrochemical Society of Japan

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Codes

  • NII Article ID (NAID)
    10010294199
  • NII NACSIS-CAT ID (NCID)
    AN00151637
  • Text Lang
    ENG
  • Article Type
    ART
  • ISSN
    13443542
  • NDL Article ID
    6575737
  • NDL Source Classification
    ZP1(科学技術--化学・化学工業)
  • NDL Call No.
    Z17-14
  • Data Source
    CJP  NDL  J-STAGE 
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