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- Title
Improvement of electrochemical properties of LiFePO<sub>4</sub>/C cathode materials by chlorine doping.
- Authors
Lin Yang; Lifang Jiao; Yanli Miao; Huatang Yuan
- Abstract
Abstract The olivine-type cathode materials of LiFePO4 were prepared via solid-state reaction under argon atmosphere and doped by chlorine to improve their electrochemical performances. The crystal structure, morphology, and electrochemical properties of the prepared samples were investigated using thermogravimetry–differential scanning calorimetry, X-ray diffraction, Fourier transform infrared, scanning electron microscopy, cyclic voltammetry, and charge–discharge cycle measurements. The result showed that the electrochemical performance of LiFePO4 had been improved by chlorine doping, and the effect of chlorine in lattice was discussed. The heavily doped samples show better electrochemical performance in relative high rates.
- Subjects
SOLID state electronics; ELECTROCHEMICAL analysis; CHLORINE; CATHODES; ARGON; LITHIUM compounds; SCANNING electron microscopy; FOURIER transform infrared spectroscopy; CRYSTALLOGRAPHY
- Publication
Journal of Solid State Electrochemistry, 2009, Vol 13, Issue 10, p1541
- ISSN
1432-8488
- Publication type
Article
- DOI
10.1007/s10008-008-0721-1