1. Solvothermal synthesis and electrochemical performance of hollow LiFePO4 nanoparticles.
- Author
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Zheng, Zhenmiao, Pang, Wei Kong, Tang, Xincun, Jia, Dianzeng, Huang, Yudai, and Guo, Zaiping
- Subjects
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LITHIUM-ion batteries , *ELECTROCHEMICAL analysis , *NANOPARTICLE synthesis , *PARTICLE size distribution , *LATTICE constants , *TARTRATES - Abstract
Hollow LiFePO 4 nanoparticles were synthesized via a solvothermal technique, using ammonium tartrate as additive and carbon source, and ethylene glycol/water as solvent. The as-prepared samples were characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, Raman spectroscopy, scanning and transmission electron microscopies, and Brunauer–Emmett–Teller specific surface area measurements. The electrochemical properties of the LiFePO 4 cathode were examined in coin-type cell configuration and the cathode exhibited excellent rate capability (i.e., discharge capacity of 120.9 mA h g −1 at 10 C) and cycling performance (i.e., >98% of capacity retention rate after 50 cycles). It is believed that the enhanced performance is correlated to the hollow structure, small crystallite and particle sizes, and relatively shorter lattice parameter b . [ABSTRACT FROM AUTHOR]
- Published
- 2015
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