Preparation of LiFePO 4/C in a reductive atmosphere generated by windward aerobic decomposition of glucose
Abstract
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. 129.8 mAh g -1) and excellent reversibility with a capacity reservation of 96.9% after 50 cycles at 0.1 C.
- Publication:
-
Journal of Power Sources
- Pub Date:
- 2011
- DOI:
- 10.1016/j.jpowsour.2011.01.100
- Bibcode:
- 2011JPS...196.5143W
- Keywords:
-
- Lithium iron phosphate;
- Carbon coating;
- Glucose;
- Windward aerobic decomposition