A Yolk–Shell Fe3O4@C Composite as an Anode Material for High-Rate Lithium Batteries

Authors

  • Yi Zhao,

    1. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, YangQiao West Road 155, Fuzhou, Fujian 350002 (P. R. China)
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  • Jiaxin Li,

    1. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, YangQiao West Road 155, Fuzhou, Fujian 350002 (P. R. China)
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  • Chuxin Wu,

    1. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, YangQiao West Road 155, Fuzhou, Fujian 350002 (P. R. China)
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  • Yunhai Ding,

    1. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, YangQiao West Road 155, Fuzhou, Fujian 350002 (P. R. China)
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  • Prof. Lunhui Guan

    Corresponding author
    1. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, YangQiao West Road 155, Fuzhou, Fujian 350002 (P. R. China)
    • State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, YangQiao West Road 155, Fuzhou, Fujian 350002 (P. R. China)
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Abstract

original image

Good egg: A unique yolk–shell Fe3O4@C composite with high loading ratio of 90 wt % has been prepared (see figure). As an anode material for lithium-ion batteries, this composite exhibits a high capacity of 680 mAh g−1 even at a large current density of 5 A g−1, and makes it a promising anode material for next-generation lithium-ion batteries.

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