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研究了Ｌａｘ Ｍｍ１－ ｘ （ＮｉＣｏＭｎＡｌ）５ 合金的放氢ＰＣＴ曲线和ＭＨ 电极的电化学性能． 随Ｌａ 含量增加，该合金平台压Ｐ和平台斜率ｆｓ 降低，平台斜率随温度的变化率ｋ 和氢在合金和氢化物中的活度系数γ增加． 氢化物形成焓ΔＨ随Ｌａ 含量增加而增加，电化学容量随之增加，同时，大电流放电性能提高．
The electrochemical properties of the hydrogen evolution PCT curve and the MH electrode of Lax Mm1-x (NiCoMnAl) 5 alloy were studied. With the increase of La content, the pressure P of the alloy platform and the slope of the platform decrease, and the rate of change of the slope of the platform with temperature k and the activity coefficient γ of hydrogen in the alloy and hydride increase. Hydride formation enthalpy ΔH increases with increasing La content, electrochemical capacity increases, while high-current discharge performance.