金属钴对泡沫型镍电极及Ni/MH电池性能的影响

电化学（中英文） ›› 1999, Vol. 5 ›› Issue (3): 281-287.

金属钴对泡沫型镍电极及Ni/MH电池性能的影响

袁安保,张鉴清,丁万春,成少安,曹楚南

浙江大学化学系!杭州310027,浙江大学化学系!杭州310027,浙江大学化学系!杭州310027,浙江大学化学系!杭州310027,浙江大学化学系!杭州310027

收稿日期:1999-08-28 修回日期:1999-08-28 出版日期:1999-08-28 发布日期:1999-08-28

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

Yuan Anbao Zhang Jianqing Ding Wanchun Cheng Shaoan Cao Chunan

(Dept.of Chem.,Zhejiang Univ.,Hangzhou 310027

Received:1999-08-28 Revised:1999-08-28 Published:1999-08-28 Online:1999-08-28

摘要/Abstract

摘要： 活性物质为化学共沉积锌的Ｎｉ（ＯＨ）２，并物理掺杂钴粉的泡沫镍涂膏式镍电极表现出高的放电比容量和循环稳定性，其中钴可以显著提高镍电极活性物质利用率，这是由于第一次活化充电时由Ｃｏ形成导电性能良好的ＣｏＯＯＨ提高了放电深度，循环过程中的容量稳定性是锌和钴协同作用的结果，特别是共沉积锌，它可以抑制 γ＿ＮｉＯＯＨ的形成从而缓解镍电极的膨胀．

Abstract: The Ni_foam pasted nickel electrodes prepared by coprecipitated Ni 1_X Zn 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.

中图分类号:

TM911

袁安保, 张鉴清, 丁万春, 成少安, 曹楚南. 金属钴对泡沫型镍电极及Ni/MH电池性能的影响[J]. 电化学（中英文）, 1999, 5(3): 281-287.

Yuan Anbao Zhang Jianqing Ding Wanchun Cheng Shaoan Cao Chunan . The Effects of Metallic Cobalt Abbition on the Performance of Pasted Nickel Electrodes[J]. Journal of Electrochemistry, 1999, 5(3): 281-287.

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https://electrochem.xmu.edu.cn/CN/Y1999/V5/I3/281

参考文献

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