Synthesis of LiFePO4 with fine particle by co-precipitation method |
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Authors: | KS Park KT Kang GY Kim HG Kim |
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Affiliation: | a Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA b Department of Materials Science and Engineering, KAIST, Daejeon 305-701, South Korea c Battery Technology Team, ETRI, Daejon 305-350, South Korea |
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Abstract: | LiFePO4 is a potential candidate for the cathode material of the lithium secondary batteries. A co-precipitation method was adopted to prepare LiFePO4 because it is simple and cheap. Nitrogen gas was needed to prevent oxidation of Fe2+ in the aqueous solution. The co-precipitated precursor shows the high reactivity with the reductive gas, and the single phase of LiFePO4 is successfully synthesized with the aid of carbon under less reductive conditions. LiFePO4 fine powder prepared by co-precipitation method shows high rate capability, impressive specific capacity and cycle property. |
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Keywords: | A inorganic compounds B electrochemical measurements C X-ray diffraction D XAFS (EXAFS and XANES) |
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