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Effect of different sources of iron on the properties of LiFePO4/C for lithium-ion batteries

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Abstract

According to the performance tests of LiFePO4 prepared by different iron sources, the product of Fe(NO3)3 had a pure phase and good electrochemical performances, while the raw material is cheaper, so Fe(NO3)3 was choosen as the iron source. The best determination of the experiment was that the lithium:iron ratio was 1, the carbon source content was 10 %, the sintering temperature was 700 °C for 6 h, and the sintering process was undertaken in a nitrogen atmosphere. The results showed that the initial discharge capacity of LiFePO4 synthesized in such conditions was 118 mAh/g in 2.5–4.2 V and at 0.1 C rate, and the capacity experienced almost no loss after 20 circulations.

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Authors and Affiliations

  1. College of Environmental and Chemical Engineering, Shenyang Ligong University, Shenyang, 110159, China

    Zhong-Cai Shao, Yue-Xiu Zhang, Yong-Xin Zhao & Suai Tong

  2. College of Material and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, 014010, Inner Mongolia, China

    Yu Zhang

  3. School of Environmental and Chemical Engineering, Shenyang Ligong University, Shenyang, 110159, China

    Yu Zhang

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  1. Zhong-Cai Shao
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  2. Yu Zhang
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  3. Yue-Xiu Zhang
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  4. Yong-Xin Zhao
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  5. Suai Tong
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Correspondence to Yu Zhang.

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Shao, ZC., Zhang, Y., Zhang, YX. et al. Effect of different sources of iron on the properties of LiFePO4/C for lithium-ion batteries. Res Chem Intermed 41, 3213–3222 (2015). https://doi.org/10.1007/s11164-013-1426-3

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  • DOI: https://doi.org/10.1007/s11164-013-1426-3

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