用感应熔炼法制备了(La1-xNdx)0.8Mg0.2Ni3.4Al0.1(x=0～0.4)储氢合金.采用XRD、恒电流充放电技术研究了Nd部分替代La对合金结构和电化学性能的影响.XRD分析表明该合金为多相结构,合金主相由(La,Mg)2Ni7相变成(La,Mg)5Ni19.电化学性能研究表明,随着Nd的加入,合金电极放电容量先增加后减小.当x=0.1时,放电容量达到最大值365.0 mAh·g-1.同时Nd的加入导致合金电极电化学循环性能和高倍率放电性能下降.
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