Synthesis and Characterization of LiNi_(0.5-x)Co_(2x)Mn_(0.5-x)O_2(x=0.1) as Cathode Material for Lithium-ion battery

LiNi0.5-xCo2xMn0.5-xO2(x=0.1)is prepared by the simultaneous substitution of Ni2+ and Mn4+(1:1)for Co3+ in LiCoO2.It is prepared by the mix hydroxide method using LiOH solution.X-ray diffraction pattern show that the material has a layer α-NaFeO2-type structure.The results show that LiNi0.4Co0.2Mn0.4O2 has about specific discharge capacity of 136 mAh/g after 25 cycle at 2.5-4.3 V,which would be a potential cathode.