Properties and application of lead-calcium-tin-aluminium-bismuth alloys for positive grids

被引:5
|
作者
Liang, J. Z.
Chen, H. Y. [1 ]
Tang, M. C.
Wu, Y. M.
Xiao, G. M.
Zhou, H. W.
Li, W. S.
Jiang, X.
机构
[1] S China Normal Univ, Sch Chem & Environm, Guangzhou 510631, Peoples R China
[2] Zhuzhou Smelter Grp Co Ltd, Hunan 412004, Peoples R China
关键词
lead alloy; bismuth; calcium; lead-acid batteries;
D O I
10.1016/j.jpowsour.2005.11.020
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The effects of bismuth addition less than 0.05 wt% on the electrochemical properties of lead-calcium-tin-aluminum alloys were investigated in detail. Passivation and corrosion phenomena were investigated by cyclic voltammetry, electrochemical impedance spectra, linear sweep voltammetry. The effect of bismuth on oxygen evolution and hydrogen evolution were also discussed. The experimental results show that the addition of bismuth leads to the decreases of the hydrogen overpotential and increase of the hydrogen evolution rate. Oxygen evolution rate increases with the increase of content of bismuth. The measurements of cyclic voltarnmetry suggested that bismuth may promote the formation of lead dioxide. A key result was that the presence of bismuth might have beneficial effect on the formation of Pb(II). (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:908 / 913
页数:6
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