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根据AB5型稀土基合金的活化性能优良及对氢化和氢化物分解过程具有催化作用的特点, 将Zr0.9Ti0.1(Mn0.35Ni0.65)2 AB2型Laves相合金与AB5型混合稀土合金进行机械球磨处理, 制备了AB5-AB2复合合金. 研究了复合合金的微观结构和电化学性能, 结果表明: 在AB5-AB2复合合金中, AB5粒子与AB2粒子在表面处相互镶嵌在一起, 并仍保持原来的晶体结构. 复合合金电极的活化周期从AB2合金的11周减少到4周, 最大放电容量从141 mAh*g-1增加到218 mAh*g-1, 而且在活化初期表现出协同效应.

参考文献

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