Fei Gao, Zhiyuan Tang, and Jianjun Xue, Effects of different iron sources on the performance of LiFePO4/C composite cathode materials, J. Univ. Sci. Technol. Beijing, 15(2008), No. 6, pp. 802-807. https://doi.org/10.1016/S1005-8850(08)60291-1
Cite this article as:
Fei Gao, Zhiyuan Tang, and Jianjun Xue, Effects of different iron sources on the performance of LiFePO4/C composite cathode materials, J. Univ. Sci. Technol. Beijing, 15(2008), No. 6, pp. 802-807. https://doi.org/10.1016/S1005-8850(08)60291-1
Fei Gao, Zhiyuan Tang, and Jianjun Xue, Effects of different iron sources on the performance of LiFePO4/C composite cathode materials, J. Univ. Sci. Technol. Beijing, 15(2008), No. 6, pp. 802-807. https://doi.org/10.1016/S1005-8850(08)60291-1
Citation:
Fei Gao, Zhiyuan Tang, and Jianjun Xue, Effects of different iron sources on the performance of LiFePO4/C composite cathode materials, J. Univ. Sci. Technol. Beijing, 15(2008), No. 6, pp. 802-807. https://doi.org/10.1016/S1005-8850(08)60291-1
Olivine LiFePO4/C composite cathode materials were synthesized by a solid state method in N2 + 5vol% H2 atmosphere. The effects of different iron sources, including Fe(OH)3 and FeC2O4·2H2O, on the performance of as-synthesized cathode materials were investigated and the causes were also analyzed. The crystal structure, the morphology, and the electrochemical performance of the prepared samples were characterized by X-ray diffractometry (XRD), scanning electron microscopy (SEM), laser particle-size distribution measurement, and other electrochemical techniques. The results demonstrate that the LiFePO4/C materials obtained from Fe(OH)3 at 800℃ and FeC2O4·2H2O at 700℃ have the similar electrochemical performances. The initial discharge capacities of LiFePO4/C synthesized from Fe(OH)3 and FeC2O4·2H2O are 134.5 mAh.g-1 and 137.4 mAh.g-1 at the C/5 rate, respectively. However, the tap density of the LiFePO4/C materials obtained from Fe(OH)3 are higher, which is significant for the improvement of the capacity of the battery.
Olivine LiFePO4/C composite cathode materials were synthesized by a solid state method in N2 + 5vol% H2 atmosphere. The effects of different iron sources, including Fe(OH)3 and FeC2O4·2H2O, on the performance of as-synthesized cathode materials were investigated and the causes were also analyzed. The crystal structure, the morphology, and the electrochemical performance of the prepared samples were characterized by X-ray diffractometry (XRD), scanning electron microscopy (SEM), laser particle-size distribution measurement, and other electrochemical techniques. The results demonstrate that the LiFePO4/C materials obtained from Fe(OH)3 at 800℃ and FeC2O4·2H2O at 700℃ have the similar electrochemical performances. The initial discharge capacities of LiFePO4/C synthesized from Fe(OH)3 and FeC2O4·2H2O are 134.5 mAh.g-1 and 137.4 mAh.g-1 at the C/5 rate, respectively. However, the tap density of the LiFePO4/C materials obtained from Fe(OH)3 are higher, which is significant for the improvement of the capacity of the battery.
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