通过氢化和高能球磨的方法制备出TiH2和V0.6Ti0.23Cr0.05Fe0.12H2复合金属氢化物,并利用XRD、SEM、BET、拉曼和充放电测试等技术对其结构、形貌、比表面积、导电剂电导率和电化学性能进行了研究.结果表明,金属氢化物经高能球磨未改变其初始的FCC结构;在电流密度为10 mA/g条件下,添加导电剂乙炔黑和石墨烯时复合金属氢化物的首次放电比容量分别为248.2 和580.6 mAh/g.
The TiH2 and V0.6Ti0.23Cr0.05Fe0.12H2 composite is prepared by hydrogenation and high energy ball milling.The structure, morphology, specific surface area, conductivities of conductive additives and electrochemical properties of the composite are studied by means of XRD, SEM, BET, Raman and charge and discharge tests.The results indicate that the initial FCC structure of metal hydride has not been changed after high energy ball milling.At a current density of 10 mA/g,the first discharge specific capacity of the composite with conductive additives acetylene black and graphene is 248.2 and 580.6 mAh/g, respectively.
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