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电化学(中英文) ›› 1996, Vol. 2 ›› Issue (3): 319-326. 

• 研究论文 • 上一篇    下一篇

Co对Ni(OH)_2电极中质子扩散行为的研究

曹晓燕,周作祥,袁华堂,张允什   

  1. 南开大学新能源材料化学研究所
  • 收稿日期:1996-08-28 修回日期:1996-08-28 出版日期:1996-08-28 发布日期:1996-08-28

The Effect of Co on the Proton Diffusion Coefficient for the Ni(OH)2 Electrodes

Cao Xiaoyan;Zhou Zuoxiang;Yuan Huatang;Zhang Yunshi   

  1. (Institute of New Energy Material Chemistry,Nankai University,Tianjin 300071
  • Received:1996-08-28 Revised:1996-08-28 Published:1996-08-28 Online:1996-08-28

摘要: 本文采用恒电位阶跃、循环伏安及恒电流放电法,考察含Co量0%~53%的Ni(oH)_2电极充放电过程中质子的扩散系数:充电过程该值为10-9~10-10cm2/s,放电过程则为10(-11)cm2/s.数据处理时对文献中有关公式进行了修正.

关键词: Co, Ni(OH)_2电极, 扩散系数

Abstract: The diffusion coefficients of protons moving in the Ni(OH)2 electrodes have being investigated by constant current,cyclic voltammetry and potential step technineques.The electrodes were prepared by cathodic deposition and their active material contained 0~53% cobalt.It was found that the diffusion coefficients are about 10(-9)~10(-10) cm2/s during charging and about 10(-11) cm2/s during discharging.Moreover the value increases with the increacing content of Co in the electrodes.During the calculation,the relevant fomulars were modified especially the wrong fomular for constant current methode.

Key words: Co, Ni(OH)2 electrode, Diffusion coefficient

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