Porous LiFePO4/NiP Composite nanospheres as the cathode materials in rechargeable lithium-ion batteries
- First Online:
- 916 Downloads
We report the synthesis of porous LiFePO4/NiP composite nanospheres and their application in rechargeable lithium-ion batteries. A simple one-step spraying technique was developed to prepare LiFePO4/NiP composite nanospheres with an electrical conductivity 103–104 times that of bulk particles of LiFePO4. Electrochemical measurements show that LiFePO4 nanospheres with a uniform loading of 0.86 wt%–1.50 wt% NiP exhibit high discharge capacity, good cycling reversibility, and low apparent activation energies. The superior electrode performance of the as-prepared composite nanospheres results from the greatly enhanced electrical conductivity and porous structure of the materials.
KeywordsNanospheres LiFePO4/NiP spraying electrical conductivity rechargeable lithium-ion batteries
- Whittingham, M. S. Materials challenges facing electrical energy storage. MRS Bull. 2008, 33, 411–s419.Google Scholar
- Cheng, F. Y.; Zhang, S. Y.; Tao, Z. T.; Liang, J.; Chen, J. LiFePO4/NiP composite microspheres as the cathode materials of rechargeable lithium-ion batteries. In IMLB 2008 Abstract 395; The 14th Int. Meeting on Lithium Batteries Tianjin, China, June 22–28, 2008.Google Scholar