Synthesized Fe-doping Li3V2(PO4)3/C cathode material from combustion synthesis precursors with enhanced electrochemical performance

Fe-doping Li3V2(PO4)(3)/C material was successfully synthesized from combustion synthesis precursors. The Li3V2(PO4)(3) is layered by amorphous carbon with a porous structure and doped with Fe, which can improve the Li+ transfer rate and conductivity. The 1% Fe-doped products used as cathode electrode for lithium-ion batteries exhibit enhanced electrochemical performance. In 3.0~4.8 V, it has a specific discharge capacity of 180 mAh g(-1) after 20 cycles at 0.1 C, 142.5 mAh g(-1) after 500 cycles at 1 C, and 132.5 mAh g(-1) after 500 cycles at 10 C. Moreover, it shows stabilized specific discharge capacity of 65.9 mAh g(-1) after 500 cycles at a rate of 20 C, and the capacity retention is 98%. Thus, it could infer the Fe-doping Li3V2(PO4)(3)/C material is a permission candidated material for application in lithium-ion batteries with high performance.