超音波噴霧熱分解法により合成したマンガン酸リチウムの粒子形態および電池特性 Particle Morphology and Battery Property of Lithium Manganate Synthesized by Ultrasonic Spray Pyrolysis

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Spherical LiMn_2O_4 fine powders with two different morphologies were prepared by ultrasonic spray pyrolysis. SEM and TEM observation showed tbat the type of starting solution influenced particle morphology. The particle structure derived from nitrate precursor solution was porous, while the powders derived from acetate precursor solution consisted mainly of hollow particles. XRD revealed that as-prepared powders were well crystallized into spinel structure with Fd3^^-m space group. Atomic absorption spectrometer analysis showed that the chemical composition of LiMn_2O_4 was in agreement with that of the starting solution. The first charge/discharge capacity of LiMn_2O_4 obtained from metal nitrate and acetate was 120-130 mAh/g. The discharge capacity of LiMn_2O_4 decreased with increasing cycle number. The cycle performance of LiMn_2O_4 obtained from metal nitrate was superior to that of LiMn_2O_4 obtained from metal acetate. It was found that the cycle perfomance was influenced by the morphology and microstructure of LiMn_2O_4 particles.

収録刊行物

  • 粉体工学会誌

    粉体工学会誌 38(6), 396-400, 2001-06-10

    粉体工学会

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各種コード

  • NII論文ID(NAID)
    10010065270
  • NII書誌ID(NCID)
    AN00222757
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03866157
  • NDL 記事登録ID
    5807027
  • NDL 雑誌分類
    ZP5(科学技術--化学・化学工業--化学工学)
  • NDL 請求記号
    Z17-38
  • データ提供元
    CJP書誌  NDL  IR 
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