Improving Electrochemical Performance of LiFePO<sub>4</sub> as a Cathode Material

HU Huanyu; CHOU Weihua; LI Faxi; ZHAO Hailei; WANG Biyan

doi:10.13374/j.issn1001-053x.2003.06.015

HU Huanyu, CHOU Weihua, LI Faxi, ZHAO Hailei, WANG Biyan. Improving Electrochemical Performance of LiFePO4 as a Cathode MaterialJ. Chinese Journal of Engineering, 2003, 25(6): 549-552. DOI: 10.13374/j.issn1001-053x.2003.06.015

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Improving Electrochemical Performance of LiFePO₄ as a Cathode Material

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LiFePO₄ was synthesized by solid state reaction. A reversible capacity of 125-138 mAh/g was achieved under a low current density of 20 mA/g at room temperature. In order to improve the electrochemical performance of the material, Li(Fe_0.8Mn_0.2)PO₄ and LiFePO₄/C were prepared, respectively. The charge-discharge experiment of the samples showed that the capacities were 145 mAh/g and 144 mAh/g, respectively. They both had a good voltage plateau and exhibited wonderful high current properties.

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Improving Electrochemical Performance of LiFePO4 as a Cathode Material

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Improving Electrochemical Performance of LiFePO₄ as a Cathode Material