研究了热处理对Ml(NiCoMnAl)4.76合金电化学性能的影响.结果表明:在1 173K～1 373K下适当的热处理可以显著提高贮氢合金电极的放电容量和高倍率放电性能;铸态合金的放电容量为310Ah/kg,放电电流密度id=300A/kg时,高倍率放电率HRD300=91%,id=1 200A/kg时,HRD1 200=35%;经1 173K,10h热处理的合金容量提高到327Ah/kg,HRD300提高到97%;经1 173K,3h热处理的合金容量为299Ah/kg,HRD300提高到98%,HRD1 200提高到65%;随热处理温度的升高和时间的延长,导致合金电极的放电容量和高倍率放电性能下降.
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