应用CoO、Zn粉对镍电极进行固相掺杂,电极经若干次充放电循环,Co、Zn元素在Ni(OH)2颗粒表层以固溶体的形式富集,可优化活性物质表面的组成和结构,提高活性物质表层的快速反应能力,从而使镍电极更适用于C/Ni(OH)2非对称电容器体系.实验结果表叨:在高倍率充放电条件下,掺杂10%CoO的镍电极,其容量为未掺杂电极的2倍;用5%的Zn粉替代部分导电剂Ni粉,镍电极大电流条件下的循环性能和容量性质将明显改善.
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