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Reducing the particle size and coating conductive materials are both effective ways to improve the performance of LFP(LiFePO4).In this paper,we synthesized LFP/C/CPO(LiFePO4/C/CePO4)composites and investigated the effects of CePO4 modification on the morphologies and electrochemical properties of LFP/C composites.The results demonstrated that CePO4 surface modification could reduce the particle size significantly and improve the electrochemical properties of LFP/C.