Effects of synthetic route on structure and electrochemical performance of Li3V2(PO4)3/C cathode materials

摘要: Abstract Three different synthetic routes, including solid-state reaction, sol–gel and hydrothermal methods are successfully used for preparation of Li 3 V 2 (PO 4 ) /C. Ascorbic acid is as a reducing agent and/or chelating agent. The /C synthesized by method with fine particles exhibits lower impedance smaller potential difference values between oxidation reduction peaks than those reaction methods. Thus cathode material Li-ion batteries, the shows higher discharge capacity, better rate capability cyclic performance. Even at high charge–discharge 10 C, it still can deliver capacity 101.4 mAh g −1 106.6 mAh g in range 3.0–4.3 V 3.0–4.8 V, respectively. synthesis has been considered to be competitive process prepare materials excellent electrochemical performances.