The cathode material 0.5Li(2)MnO(3)-LiNi0.5Mn0.5O2 had been synthesized via low temperature combustion process followed by an annealing treatment. The microstructure and morphology characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) showed that the synthesized product had high crystallinity, alpha-NaFeO2-like layered structure, and sphere-like morphology. Its 0.1 C discharge capacity rapidly increased with cycle number before 6th cycle and reached the highest value 217 mAh/g at 14th cycle. After 50 cycles its 0.1, 0.2 and 0.5 C discharge capacities still retained 191.6, 187.8 and 156.2 mAh/g, respectively, showing that the synthesized product had excellent electrochemical performance. (C) 2011 Elsevier B.V. All rights reserved.