A novel method with low-cost Fe2O3 to synthesize small size LiFePO4 by carbothermal reduction method

The phase-pure LiFePO 4 /C cathode materials have been successfully fabricated by precursor containing Fe 2 O 3 coated with polyaniline through carbothermal reduction method. The polyaniline coating at Fe 2 O 3 could restrict the growth of crystal and subsequently become electric carbon at higher synthesis temperature. Compared with conventional carbothermal reduction method, the sample showed a better capacity and less than 3% capacity fading after 30 cycles at various charge and discharge rate.