LiFePO4 (LFP) and Li3V2(PO4)3 (LVP) as lithium ion battery (LIB) cathode materials have been investigated due to their advantages, such as low cost, nontoxicity and high theoretical capacity.[1,2] However, the specific capacity and lithium ion diffusion coefficient (D) could be further improved.Therefore, the controlled synthesis and modifications of LFP and LVP cathode materials are the key to improve the electrochemical performance of LIBs.The biomimetic synthesis processes are much more competent at the molecular control of the structure, size, aggregation, morphology and crystallographic orientation of inorganic materials.Yeast (Y) and Na2ATP (ATP) as characteristic biotemplates have important influences on the compositions, structures and electrochemical performances of cathode materials.[3] In this paper, we synthesized and modified the composites of LFP and LVP by using Y and ATP biotemplates, respectively.The compositions of synthetic samples are shown in Fig.1a and Table 1.The investigation of structures indicates that the Y and ATP templates are able to form the spherical (Fig.1b) and nanosheet (Fig.1c) structures with typical pore structure, respectively.The discharge specific capacity at 0.1 C rate is shown in Fig.1 d and Table 1.We found that the Na2ATP-LiFePO4/NaFe3V9O19 cathode material has the best electrochemical performances by the comparison,its specific capacity is 202.8 mAh g-1 at 0.1 C.