以泡沫镍为集流体的锌电极腐蚀性能  

Corrosion behavior of zinc electrode on the nickel foam current collector

作　　者：冀惊涛[1] 杨化滨[1] 孙华[1] 杨恩东[1] 袁华堂[1] 周作祥[1] 

机构地区：[1]南开大学新能源材料化学研究所,天津300071

出　　处：《电源技术》2001年第6期389-393,共5页Chinese Journal of Power Sources

基　　金：国家自然科学基金资助项目 (5990 1 0 0 5;天津市自然科学基金重点基金资助项目 (0 1 380 2 61 1 )

摘　　要：采用动电位极化曲线法研究了在镀铅及未镀铅的泡沫镍集流体上电沉积锌的析氢过程和腐蚀性能。结果表明 :在泡沫镍集流体上镀铅不仅可以提高电极的析氢过电位 ,还能使其腐蚀电位正移 ,减小腐蚀程度 ;同时还能在一定程度上解决锌电极的钝化问题。此外 ,还研究了在泡沫镍上电沉积锌的条件。结果表明 :在镀铅及未镀铅的泡沫镍上 ,沉积条件对电极的腐蚀性能有很大影响。The corrosion behavior and hydrogen evolution of zinc electrode on the Pb coated and uncoated nickel foam as the current collectors were studied by a potentiodynamic polarization curve method. The results indicate that the coated Pb not only can increase the overpotential of hydrogen evolution, but also can shift the corrosion potential of zinc electrode to the more positive position, so as to decrease the corrosion rate. Moreover, it can also improve the passivation behavior of zinc electrode to some extent. The conditions of zinc electrodeposition on the nickel foam had been investigated. The results show that the electrodeposition conditions on the Pb coated and uncoated nickel foam can affect the corrosion behavior of the zinc electrode.

关 键 词：锌电极 集流体 腐蚀 电沉积 泡沫镍 碱性电池 化学电源 

分 类 号：TM911.14[电气工程—电力电子与电力传动]