采用室温下缓冲溶液的浸渍处理方法对Mm(NiCoMnAl)5合金进行表面改性，研究了缓冲溶液pH值和浸渍处理时间对合金电化学性能的影响。试验结果表明：采用pH值为4.5的缓冲溶液浸渍处理2h可以改善Mm(NiCoMnAl)5合金的活化性能、初始放电容量和循环稳定性，但对高倍率放电性能的改善作用并不明显。
Mm(NiCoMnAl)5 alloy has been treated by buffer solution at roomtemperature, and the electrochemical performances of the alloy have been investigated. The results show that the activation behavior, initial di scharge capacity and cycling stability of the alloy treated by buffer solution (pH=4.5) for 2 h are improved.
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