0.5Li_2MnO_3·0.5LiCo_(l/3)Ni_(l/3)Mn_(l/3)O_2 cathode material of lithium ion battery is really competitive in the application of new generation of rechargeable lithium ion batteries since it possesses higher capacity and potential of discharging.However,this material also suffer from some intrinsic problems,such as severe capacity loss during initial cycle,poor structure stability,active material eroded easily by electrolyte,and poor cycle stability and so on.In this work,the preparation and modification o...