酢酸マンガンとペルオキソ二硫酸アンモニウムからのリチウム一次電池用二酸化マンガンの合成  [in Japanese] Synthesis of Manganese Dioxide from Manganese Acetate and Ammonium Peroxiodisulfate for Lithium Primary Cells  [in Japanese]

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Author(s)

    • 宮本 信明 MIYAMOTO Nobuaki
    • 有明工業高等専門学校物質工学科 Department of Chemical Science and Engineering, Ariake National College of Technology
    • 高田 祐一 TAKADA Yuichi
    • 有明工業高等専門学校物質工学科 Department of Chemical Science and Engineering, Ariake National College of Technology
    • 三浦 志穂 MIURA Shiho
    • 有明工業高等専門学校物質工学科 Department of Chemical Science and Engineering, Ariake National College of Technology

Abstract

<p>Manganese dioxides were prepared from heating manganese(II) acetate and ammonium peroxiodisulfate at 80-200°C for 1 h. The yield of manganese dioxide decreased with the heating temperature (>100°C). After heating at 375°C for 5 h in air, the formation of <i>α</i>-MnO<sub>2</sub> and <i>β</i>-MnO<sub>2</sub> phases was confirmed by X-ray diffraction. The specific surface areas of the products heated at 375°C were 160-180 m<sup>2</sup> g<sup>−1</sup>. When the products were used as the cathode materials of lithium / manganese oxide cells, the discharge capacities of these cells were 281-287 mAh g<sup>−1</sup>, which were higher than that of the cell using electrolytic manganese dioxide (210 mAh g<sup>−1</sup>). It was found that the product obtained by heating at 100°C is hopeful to be used as a cathode material.</p>

Journal

  • Electrochemistry

    Electrochemistry 70(5), 308-310, 2002-05-05

    The Electrochemical Society of Japan

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Codes

  • NII Article ID (NAID)
    10008223490
  • NII NACSIS-CAT ID (NCID)
    AN00151637
  • Text Lang
    JPN
  • Article Type
    ART
  • ISSN
    13443542
  • NDL Article ID
    6128396
  • 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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