The research on layer cathode material Li[Li_(0.2)Ni_(0.2)Mn_(0.6)]O_2

Layered Li[Li_(0.2)Ni_(0.2)Mn_(0.6)]O_2 which used as cathode material for Li-ion battery was synthesized by LiAc·H_2O,(Ni(Ac)_2·4H_2O) and Mn(Ac)_2·4H_2O as raw materials. XRD analysis showed that the material could be indexed by a hexagonal (α-NaFeO_2) layer structure. The initial capacity of the material was higher than 220 mAh/g and more than 210 mAh/g after 100 cycles and it exhibited high discharge capacity and good cycle performance.