Naturally Rolled-Up C/Si/C Trilayer Nanomembranes as Stable Anodes for Lithium-Ion Batteries with Remarkable Cycling Performance

Authors

  • Junwen Deng,

    1. Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstrasse 20, 01069 Dresden (Germany)
    2. Material Systems for Nanoelectronics, Chemnitz University of Technology, Reichenhainer Strasse 70, 09107 Chemnitz (Germany)
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  • Dr. Hengxing Ji,

    1. Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230036 (P. R. China)
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  • Dr. Chenglin Yan,

    Corresponding author
    1. Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstrasse 20, 01069 Dresden (Germany)
    • Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstrasse 20, 01069 Dresden (Germany)===

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  • Jiaxiang Zhang,

    1. Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstrasse 20, 01069 Dresden (Germany)
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  • Wenping Si,

    1. Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstrasse 20, 01069 Dresden (Germany)
    2. Material Systems for Nanoelectronics, Chemnitz University of Technology, Reichenhainer Strasse 70, 09107 Chemnitz (Germany)
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  • Dr. Stefan Baunack,

    1. Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstrasse 20, 01069 Dresden (Germany)
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  • Dr. Steffen Oswald,

    1. Institute for Complex Materials, IFW Dresden, Helmholtzstrasse 20, 01069 Dresden (Germany)
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  • Prof. Yongfeng Mei,

    1. Department of Materials Science, Fudan University, Shanghai, 200433 (P. R. China)
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  • Prof. Oliver G. Schmidt

    1. Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstrasse 20, 01069 Dresden (Germany)
    2. Material Systems for Nanoelectronics, Chemnitz University of Technology, Reichenhainer Strasse 70, 09107 Chemnitz (Germany)
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  • This work is financed by the International Research Training Group (IRTG) project and PAKT project “Electrochemical energy storage in autonomous systems, No. 49004401”.

Abstract

original image

Rolling their own: Naturally rolled-up C/Si/C trilayer nanomembranes (see scheme) exhibit a high reversible capacity of about 2000 mAh g−1 at 50 mA g−1, and 100 % capacity retention at 500 mA g−1 after 300 cycles. This technique is general and could be applied to the fabrication of other battery materials that undergo large volume changes.

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