论文部分内容阅读
针对混合稀土金属中含有不定量的硅杂质及贮氢电极合金在熔炼过程中容易混入硅杂质的特点，通过在Ｍｌ（Ｎｉ，Ｃｏ，Ｍｎ，Ｔｉ）５合金中人为地添加不同量硅的方法，系统地研究了硅掺杂对贮氢电极合金Ｍｌ（Ｎｉ，Ｃｏ，Ｍｎ，Ｔｉ）５电化学性能的影响。结果表明，硅掺杂量增加，会降低合金的放电容量；随着硅掺杂量的增加，合金的活化性能降低；当硅掺杂量从０增至０．１５时，合金的循环稳定性逐渐提高，但当硅掺杂量进一步增加时，循环稳定性逐渐降低。
In view of the fact that mixed rare earth metals contain an indefinite amount of silicon impurities and hydrogen storage electrode alloys are easily mixed with silicon impurities in the melting process, a method of artificially adding different amounts of silicon to Ml (Ni, Co, Mn, Ti) 5 alloys , Systematically studied the silicon doping on the electrochemical properties of hydrogen storage electrode alloy Ml (Ni, Co, Mn, Ti) 5. The results show that the increase of silicon doping will decrease the discharge capacity of the alloy. With the increase of the doping amount of silicon, the activation performance of the alloy decreases. When the doping amount of silicon increases from 0 to 0.15, the cycling stability of the alloy Gradually increased, but when the amount of silicon doping further increased, the cycle stability gradually decreased.