Preparation of LiFePO_4/C in a reductive atmosphere generated by windward aerobic decomposition of glucose

摘要

We report the preparation of LiFePO_4/C electrode materials by thermal treating the hydrothermal LiFePO_4/C precursors in a reductive atmosphere from windward aerobic decomposition of glucose. XRD and ESEM characterization indicate that the procedure produces well carbon coated single-phase orthorhombic LiFePO_4 with small and evenly distributed particle-sizes. Comparing with the typical Ar/H_2 reductive atmosphere, samples from this procedure host larger initial discharge capacity (147.9 vs. 129.8mAhg~(-1)) and excellent reversibility with a capacity reservation of 96.9% after 50 cycles at 0.1 C.