用球磨法制备具有非晶纳米晶结构的CeMg12+100wt％Ni+Ywt％TiF3(Y=0、3、5)电极合金,研究在球磨过程中加入不同含量的TiF3对合金的微观结构及电化学性能影响.主要从电化学放电容量、循环稳定性以及电化学动力学方面对制备的合金电化学性能进行探讨,并运用电化学PCT(压力-组成-温度)法从热力学角度进一步研究制备合金电化学性能变化的内在原因.结果表明:TiF3有助于增强球磨CeMg12+ 100wt％Ni+Ywt％TiF3(Y=0、3、5)储氢合金玻璃化形成能力,改善合金的电化学与动力学性能.另外,球磨过程中加入TiF3可以在一定程度上降低合金氢化物的热稳定性,有利于电化学释氢反应的进行.
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