Synthesis and Characterization of Composite Cathode Material a xLiFePOa4 ¤yLi3V2(PO4)3

5LiFePO4 ¤Li3V2(PO4)3 was synthesized a viaa calcining amorphous 5LiFePO4 ¤Li3V2(PO4)3 obtained through lithiation of FePO4 ¤xH2O and V2O5 by using oxalic acid as a novel reducing agent at room temperature. The crystal structure, morphology and electrochemical properties of the products were investigated. The results show that the sample synthesized at 650 or 12h has fine particle sizes of 100-200nm with homogenous sizes distribution. Electrochemical measurement results indicate that the material exhibites high rate characteristic and high discharge capacity of 158mAh/g (theoretic capacity a 156.8mAh/gaa) and 114mAh/g at 1Ca and 10Ca rate, respectively. There is no obvious capacity fade observed after 100 cycles at 10Ca rate. The electrochemical performance of composite cathode material 5LiFePO4 ¤Li3V2(PO4)a3 is better than that of individual cathode material, such as LiFePO4 and Lia3V2(PO4)3.a¤