Hollow Carbon Nanospheres with a High Rate Capability for Lithium-Based Batteries

Authors

  • Dr. Kun Tang,

    Corresponding author
    1. Max Planck Institute for Solid State Research, Heisenbergstr. 1, 70569 Stuttgart (Germany), Fax: +49 (0)711 689 - 1722
    • Max Planck Institute for Solid State Research, Heisenbergstr. 1, 70569 Stuttgart (Germany), Fax: +49 (0)711 689 - 1722
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  • Dr. Robin J. White,

    Corresponding author
    1. Max Planck Institute for Colloids and Interfaces, Am Muehlenberg, 14476 Golm (Germany), Fax: +49 331 567 9502
    • Max Planck Institute for Colloids and Interfaces, Am Muehlenberg, 14476 Golm (Germany), Fax: +49 331 567 9502
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  • Xiaoke Mu,

    1. Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, 70569 Stuttgart (Germany)
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  • Dr. Maria-Magdalena Titirici,

    1. Max Planck Institute for Colloids and Interfaces, Am Muehlenberg, 14476 Golm (Germany), Fax: +49 331 567 9502
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  • Prof.Dr. Peter A. van Aken,

    1. Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, 70569 Stuttgart (Germany)
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  • Prof.Dr. Joachim Maier

    1. Max Planck Institute for Solid State Research, Heisenbergstr. 1, 70569 Stuttgart (Germany), Fax: +49 (0)711 689 - 1722
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Abstract

original image

Higher spheres: Hollow carbon nanospheres are prepared from glucose through a facile, sustainable hydrothermal method. Their morphology provides fast electron and lithium ion transport, which is reflected in a superior rate capability (100 mAh g−1 at 50 C) and good cycle stability. Nevertheless, these results provide direct evidence that not only lithium-ion insertion/extraction to the carbon layers occurs, but also that a surface reaction contributes to the high rate performance.

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