银的迁移对铅酸电池负极性能的影响

Influence of silver migration on negative electrode performances of lead acid battery

为了研究含银板栅中银的溶解和迁移对铅酸电池负极性能的影响,测试了锑含量不同的铅锑合金电解后银的迁移量,发现锑含量升高抑制了银在阴极的析出。利用循环伏安方法测试了银阳极氧化后负极的析氢性能,发现银使电极的析氢电位发生了正移,析氢电流增加,同时发现银使电极的还原电位发生了负移。

In order to study the influence of silver dissolution and migration on the negative electrode performance of lead-acid battery, the silver migration of lead-antimony alloy with different antimony content was tested after electrolysis. It was found that the silver precipitation at the cathode was inhibited with the increasing of antimony content. The hydrogen evolution of the anode after silver anodization was tested by cyclic voltammetry. The hydrogen evolution potential of the electrode was positively shifted by silver and the hydrogen evolution current was increased. Also the reduction potential of the electrode was negatively shifted by silver.