在LaMgNi3.7Co0.3储氢合金粉末表面进行化学镀镍处理.镀覆镍的合金粉末与镍粉混合后涂于泡沫镍上制成电极.当镀液中Ni2+为40 g/L、温度为50℃、镀液pH为8.0、反应时间为30 min时,合金电极在6 mol/L KOH电解液中的最大放电容量和循环稳定性都有显著提高,合金电极的交换电流密度增大,极化电阻降低,其动力学性能增强.
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