Cobalt-free Materials for Nickel-metal Hydride Battery: Self-discharge Suppression and Overdischarge-resistance Improvement

DOI Web Site Web Site 参考文献42件
  • TAKASAKI Tomoaki
    Research Institute for Ubiquitous Energy Devices, National Institute of Advanced Industrial Science and Technology (AIST)
  • NISHIMURA Kazuya
    GIGACELL Battery Center, Rolling Stock Company, Kawasaki Heavy Industries, Ltd.
  • SAITO Makoto
    Research Institute for Ubiquitous Energy Devices, National Institute of Advanced Industrial Science and Technology (AIST)
  • IWAKI Tsutomu
    Research Institute for Ubiquitous Energy Devices, National Institute of Advanced Industrial Science and Technology (AIST)
  • SAKAI Tetsuo
    Research Institute for Ubiquitous Energy Devices, National Institute of Advanced Industrial Science and Technology (AIST)

この論文をさがす

抄録

For use of the large-sized Ni-MH battery in the social-infrastructure, it is important to improve its self-discharge suppression and overdischarge resistance as well as its high-power and long cycle-life performances. The use of the RE0.9Mg0.1Ni3.9Al0.2 alloy as the negative electrode of a Ni-MH battery effectively suppressed the self-discharge compared to the use of the conventional AB5-type alloy. Meanwhile, a carbon-coated Ni(OH)2 prepared using a fluid-bed coating method exhibited a better overdischarge resistance than that using the conventional CoOOH-coated one. The Co, which is an expensive rare metal, is completely removed from the Ni-MH battery using these Co-free electrodes. The Co-free Ni-MH battery combines several good battery characteristics, such as a low self-discharge and overdischarge resistance.

収録刊行物

  • Electrochemistry

    Electrochemistry 81 (7), 553-558, 2013

    公益社団法人　電気化学会

参考文献 (42)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ