Ni/Co比例對LiCoxNi1-xO2電化學性能的影響
Influence of Ni/Co Ratio for LiCoxNi1-xO2 on Electrochemical Performance
-
摘要: 采用固相反應法合成了一系列LiCoxNi1-xO2（0≤x≤1）材料,用XRD和電化學實驗方法研究了Co3+取代Ni3+對LiNiO2材料電化學性能的影響.結果表明,當Ni/Co比例為8:2時材料具有最好電化學性能,比容量可以達到170～180mAh/g,并且具有好的抗過充性能.Abstract: A series of LiNi1-xCoxO2 (0<x< 1) were synthesized by solid state reaction. The effect of Co3+ substitution on Ni3+ content was investigated by XRD and electrochemical techniques. It is shown that LiNi0.8C0.2O2 has the best electrochemical performance, delivering specific capacities of 170-180 mAh/g and good over-charge resistance compared with LiNiO2.
下載: