Advanced Materials

Binder-Free LiCoO2/Carbon Nanotube Cathodes for High-Performance Lithium Ion Batteries

Authors

  • Shu Luo,

    1. Department of Physics and Tsinghua-Foxconn, Nanotechnology Research Center, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
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  • Ke Wang,

    1. Department of Physics and Tsinghua-Foxconn, Nanotechnology Research Center, Tsinghua University, Beijing 100084, People's Republic of China
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  • Jiaping Wang,

    Corresponding author
    1. Department of Physics and Tsinghua-Foxconn, Nanotechnology Research Center, Tsinghua University, Beijing 100084, People's Republic of China
    • Department of Physics and Tsinghua-Foxconn, Nanotechnology Research Center, Tsinghua University, Beijing 100084, People's Republic of China.
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  • Kaili Jiang,

    1. Department of Physics and Tsinghua-Foxconn, Nanotechnology Research Center, Tsinghua University, Beijing 100084, People's Republic of China
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  • Qunqing Li,

    1. Department of Physics and Tsinghua-Foxconn, Nanotechnology Research Center, Tsinghua University, Beijing 100084, People's Republic of China
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  • Shoushan Fan

    1. Department of Physics and Tsinghua-Foxconn, Nanotechnology Research Center, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
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Abstract

Binder-free LiCoO2-SACNT cathodes with excellent flexibility and conductivity are obtained by constructing a continuous three-dimensional super-aligned carbon nanotube (SACNT) framework with embedded LiCoO2 particles. These binder-free cathodes display much better cycling stability, greater rate performance, and higher energy density than classical cathodes with binder. Various functional binder-free SACNT composites can be mass produced by the ultrasonication and co-deposition method described in this paper.

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