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Advanced Materials

Cross-Stacked Carbon Nanotube Sheets Uniformly Loaded with SnO2 Nanoparticles: A Novel Binder-Free and High-Capacity Anode Material for Lithium-Ion Batteries

Authors

  • Hao-Xu Zhang,

    Corresponding author
    1. Department of Physics, Tsinghua University Beijing, 100084 (PR China)
    2. Tsinghua-Foxconn Nanotechnology Research Center Tsinghua University, Beijing, 100084 (PR China)
    • Department of Physics, Tsinghua University Beijing, 100084 (PR China).
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  • Chen Feng,

    1. Department of Physics, Tsinghua University Beijing, 100084 (PR China)
    2. Tsinghua-Foxconn Nanotechnology Research Center Tsinghua University, Beijing, 100084 (PR China)
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  • Yong-Chao Zhai,

    1. Department of Physics, Tsinghua University Beijing, 100084 (PR China)
    2. Tsinghua-Foxconn Nanotechnology Research Center Tsinghua University, Beijing, 100084 (PR China)
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  • Kai-Li Jiang,

    1. Department of Physics, Tsinghua University Beijing, 100084 (PR China)
    2. Tsinghua-Foxconn Nanotechnology Research Center Tsinghua University, Beijing, 100084 (PR China)
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  • Qun-Qing Li,

    1. Department of Physics, Tsinghua University Beijing, 100084 (PR China)
    2. Tsinghua-Foxconn Nanotechnology Research Center Tsinghua University, Beijing, 100084 (PR China)
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  • Shou-Shan Fan

    1. Department of Physics, Tsinghua University Beijing, 100084 (PR China)
    2. Tsinghua-Foxconn Nanotechnology Research Center Tsinghua University, Beijing, 100084 (PR China)
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Abstract

SnO2–carbon nanotube (CNT) composite sheets are synthesized using poly(vinylpyrrolidone) to uniformly load a monolayer of SnO2 nanoparticles onto the surfaces of CNTs and CNT bundles within cross-stacked CNT sheets. When they are used as high-capacity (over 850 mA h g–1) and binder-free anodes in rechargeable lithium-ion batteries, they exhibit good cycle performance, as shown in the lower portion of the figure.

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