The Effects of Metallic Cobalt Abbition on the Performance of Pasted Nickel Electrodes

Authors

An-bao YUAN, Dept. of Chem., Zhejiang Univ., Hangzhou 310027
Jian-qing ZHANG, Dept. of Chem., Zhejiang Univ., Hangzhou 310027
Wan-chun DING, Dept. of Chem., Zhejiang Univ., Hangzhou 310027
Shao-an CHENG, Dept. of Chem., Zhejiang Univ., Hangzhou 310027
Chu-nan CAO, Dept. of Chem., Zhejiang Univ., Hangzhou 310027

Corresponding Author

Jian-qing ZHANG

Abstract

The Ni-foam pasted nickel electrodes prepared by coprecipitated Ni_1-XZn_X(OH)₂ with and without cobalt power addition have been studied. The electrode with addition of metallic cobalt showed a higher performance both in discharge capacity and cycle life. It is known from the experiment results that the addition of Co can remarkably increase the active material utilization which is suggested to be improvement of discharge depth due to the conducting CoOOH formed in the first activation charging. The superior capacity during cycling could be attributed to the synergistic action of zinc and cobalt addition ,especially to the coprecipitatation of zinc hydroxide which is suggested to be the inhibition of γ-NiOOH formation.

Keywords

Nickel electrode, Metallic cobalt, Coprecipitated zinc hydroxide, Performance, Effect

DOI Link

https://doi.org/10.61558/2993-074X.2719

Publication Date

1999-08-28

Online Available Date

1999-08-28

Revised Date

1999-03-10

Received Date

1998-12-18

Recommended Citation

An-bao YUAN, Jian-qing ZHANG, Wan-chun DING, Shao-an CHENG, Chu-nan CAO. The Effects of Metallic Cobalt Abbition on the Performance of Pasted Nickel Electrodes[J]. Journal of Electrochemistry, 1999 , 5(3): 281-287.
DOI: 10.61558/2993-074X.2719
Available at: https://jelectrochem.xmu.edu.cn/journal/vol5/iss3/1