Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 614, Issue -, Pages 13-19Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2014.06.072
Keywords
LiFePO4; Hydrothermal synthesis; Microstructure; Electrochemical properties
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Funding
- University Grants Commission, New Delhi
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LiFePO4 is one of the most promising cathode materials as it offers low cost, high abundance, appropriate theoretical capacity and environmental friendly. In the present investigation, nano-crystalline LiFePO4 has been synthesized by hydrothermal method and studied spectroscopic and microscopic properties. The XRD and TEM studies exhibited the formation of orthorhombic structure with Pnma space group. The X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), and Raman spectroscopy studies confirm the phase purity of the LiFePO4 powder. The electrochemical characteristics of LiFePO4 are measured in non-aqueous region. It exhibited a good reversible cyclic voltammogram on sweeping the potential upward and downward. The chronopotentiometric measurements performed at various C-rates and the cell exhibited a discharge capacity of 143 mA h/g at 0.1 C with good cycling stability. (C) 2014 Elsevier B.V. All rights reserved.
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