Paper Title:
The Effect of Electrodes’ Making Methods on the Electrochemical Performance of Nano-Ni(OH)2
  Abstract

Nano-Ni(OH)2 doped with special elements were prepared by supersonic co-precipitation method. Complex electrodes were prepared by immersion method and handwork method by mixing 8wt.% nickel hydroxides with commercial micro-size spherical nickel as the positive material of Ni-MH battery. The electrochemical performance and cyclic character affected by different electrodes’ making methods were characterized in this article. The result indicates that the discharge capacities of IM electrodes (IM electrodes mean electrodes made by handwork method) are higher than that of HM electrodes (HM electrodes mean electrodes made by handwork method). Furthermore, IM electrodes have better reversibility and higher charge efficiency than HM electrode, and lower charge potential and higher discharge plateau were also observed for IM electrodes. It's worth noting that the phenomenon is more obvious at high charge/discharge rate. When the discharge rate is 0.5C,the discharge capacity of IM electrode is higher 67.1 mAh•g -1 than that of HM electrode.

  Info
Periodical
Edited by
Yiyi Zhouzhou and Qi Luo
Pages
123-127
DOI
10.4028/www.scientific.net/AMM.79.123
Citation
H. Z. Zheng, Y. J. Zhu, Z. J. Zhang, X. R. Lin, Z. J. Zhou, X. C. Ye, S. G. Wu, "The Effect of Electrodes’ Making Methods on the Electrochemical Performance of Nano-Ni(OH)2", Applied Mechanics and Materials, Vol. 79, pp. 123-127, 2011
Online since
July 2011
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