Advanced Materials

LiFePO4 Nanoparticles Embedded in a Nanoporous Carbon Matrix: Superior Cathode Material for Electrochemical Energy-Storage Devices

Authors

  • Xing-Long Wu,

    1. Key Laboratory of Molecular Nanostructure and Nanotechnology and Beijing National Laboratory for Molecular Sciences (BNLMS) Center for Molecular Sciences Institute of Chemistry Chinese Academy of Sciences (CAS) Beijing 100190 (P.R. China)
    2. Graduate School of CAS Beijing 100064 (P.R. China)
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  • Ling-Yan Jiang,

    1. Key Laboratory of Molecular Nanostructure and Nanotechnology and Beijing National Laboratory for Molecular Sciences (BNLMS) Center for Molecular Sciences Institute of Chemistry Chinese Academy of Sciences (CAS) Beijing 100190 (P.R. China)
    2. Graduate School of CAS Beijing 100064 (P.R. China)
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  • Fei-Fei Cao,

    1. Key Laboratory of Molecular Nanostructure and Nanotechnology and Beijing National Laboratory for Molecular Sciences (BNLMS) Center for Molecular Sciences Institute of Chemistry Chinese Academy of Sciences (CAS) Beijing 100190 (P.R. China)
    2. Graduate School of CAS Beijing 100064 (P.R. China)
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  • Yu-Guo Guo,

    Corresponding author
    1. Key Laboratory of Molecular Nanostructure and Nanotechnology and Beijing National Laboratory for Molecular Sciences (BNLMS) Center for Molecular Sciences Institute of Chemistry Chinese Academy of Sciences (CAS) Beijing 100190 (P.R. China)
    • Key Laboratory of Molecular Nanostructure and Nanotechnology and Beijing National Laboratory for Molecular Sciences (BNLMS) Center for Molecular Sciences Institute of Chemistry Chinese Academy of Sciences (CAS) Beijing 100190 (P.R. China).
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  • Li-Jun Wan

    Corresponding author
    1. Key Laboratory of Molecular Nanostructure and Nanotechnology and Beijing National Laboratory for Molecular Sciences (BNLMS) Center for Molecular Sciences Institute of Chemistry Chinese Academy of Sciences (CAS) Beijing 100190 (P.R. China)
    • Key Laboratory of Molecular Nanostructure and Nanotechnology and Beijing National Laboratory for Molecular Sciences (BNLMS) Center for Molecular Sciences Institute of Chemistry Chinese Academy of Sciences (CAS) Beijing 100190 (P.R. China).
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Abstract

An optimized nanostructure design for high-power, high-energy lithium-ion batteries and supercapacitors is realized by fabricating a nanocomposite with highly dispersed nanoparticles of active materials in a nanoporous carbon matrix. A nano-LiFePO4/nanoporous carbon matrix nanocomposite forms a bridge between a supercapacitor and a battery electrode and offers a reasonable compromise between rate and capacity.

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