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Reversible Lithium-Ion Storage in Silver-Treated Nanoscale Hollow Porous Silicon Particles

Authors

  • Dongyun Chen,

    1. College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123 (China)
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  • Xiao Mei,

    1. College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123 (China)
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  • Ge Ji,

    1. Department of Chemical & Biomolecular Engineering, Faculty of Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore, 119260 (Singapore)
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  • Meihua Lu,

    1. Department of Chemical & Biomolecular Engineering, Faculty of Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore, 119260 (Singapore)
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  • Prof. Jianping Xie,

    Corresponding author
    1. Department of Chemical & Biomolecular Engineering, Faculty of Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore, 119260 (Singapore)
    • Department of Chemical & Biomolecular Engineering, Faculty of Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore, 119260 (Singapore)
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  • Prof. Jianmei Lu,

    Corresponding author
    1. College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123 (China)
    • College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123 (China)
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  • Prof. Jim Yang Lee

    Corresponding author
    1. Department of Chemical & Biomolecular Engineering, Faculty of Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore, 119260 (Singapore)
    • Department of Chemical & Biomolecular Engineering, Faculty of Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore, 119260 (Singapore)
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  • The attachment of D.C. to the National University of Singapore is partially financially supported by the China Scholarship Council (CSC).

Abstract

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Easy to hollow: A hollow porous Si nanocomposite with Ag nanoparticles (NPs) is prepared (see scheme; PS=polystyrene, HP=hollow porous). The free volume in the HPSi structure effectively cushioned the volume change in Li–Si alloying and de-alloying reactions, giving an impressive performance as a high-capacity anode for lithium-ion batteries.

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