中华医学超声杂志

应用化学 ›› 1997, Vol. 0 ›› Issue (4): 29-32.

• 研究论文 • 上一篇    下一篇

MH-Ni电池封口化成及其性能

陈卫祥1, 唐致远2, 刘昭林2, 郭鹤桐2, 陈长聘1   

  1. 1. 浙江大学材料科学与工程学系, 杭州 310027;
    2. 天津大学应用化学系, 天津
  • 收稿日期:1996-12-31 修回日期:1997-05-05 出版日期:1997-08-10 发布日期:1997-08-10
  • 基金资助:
    国家科委863计划资助

The Sealed Formation and Performances of MH-Ni Batteries

Chen Weixiang1, Tang Zhiyuan2, Liu Zhaolin2, Guo Hetong2, Chen Changpin1   

  1. 1. Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027;
    2. Department of Applied Chemistry, Tianjin University, Tianjin
  • Received:1996-12-31 Revised:1997-05-05 Published:1997-08-10 Online:1997-08-10

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451

被引次数

1

摘要： 在硼氢化钾碱性溶液中对金属氢化物(MH)电极的表面进行化学还原处理，提高了MH电极的放电容量、活化性能和电催化活性。用其为负极组装的AA型MH-Ni电池进行了封口化成，电池放电容量达到1150mAh,5C下电池的放电容量达到0.2C下容量的80%以上，电池在1C100%DOD(放电深度)充放电条件下，循环寿命由原来的100次左右提高到200次以上

关键词: 金属氢化物电极, 化学还原, MH－Ni电池, 化成, 性能

Abstract: The performances such as the discharge capacity, activation, electrocatalytic activity and high-rate dischargeability of MH electrodes were improved by the chemical reduction in an alkaline solution containing a reductant KBH4. MH-Ni batteries assembled with KBH4-treated MH electrodes as negative electrodes were sealed formated. The performances of the batteries by sealed formation were superior to that of the batteries by open formation. The capacity approached 1150.mAh. High rate dischargeability (at 5 C) was above 80% and the capacity at -18℃ (0.2 C) was 90% of that at room tempearture (0.2 C). The cyclic life of the MH-Ni battery at 1 C (100% DOD) increased from 100.cycles to 200.cycles and more.

Key words: metal hydride electrode, chemical reduction, MH-Ni battery, formation, performance

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