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A Patterned 3D Silicon Anode Fabricated by Electrodeposition on a Virus-Structured Current Collector

Authors

  • Xilin Chen,

    1. Department of Chemical and Biomolecular Engineering, University of Maryland College Park, MD 20742, USA
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  • Konstantinos Gerasopoulos,

    1. Department of Materials Science and Engineering, Institute for Systems Research, Department of Electrical and Computer Engineering, University of Maryland College Park, MD 20742, USA
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  • Juchen Guo,

    1. Department of Chemical and Biomolecular Engineering, University of Maryland College Park, MD 20742, USA
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  • Adam Brown,

    1. Institute for Bioscience and Biotechology Research, Department of Plant Science and Landscape Architecture, University of Maryland College Park, MD 20742, USA
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  • Chunsheng Wang,

    Corresponding author
    1. Department of Chemical and Biomolecular Engineering, University of Maryland College Park, MD 20742, USA
    • Department of Chemical and Biomolecular Engineering, University of Maryland College Park, MD 20742, USA.
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  • Reza Ghodssi,

    1. Department of Materials Science and Engineering, Institute for Systems Research, Department of Electrical and Computer Engineering, University of Maryland College Park, MD 20742, USA
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  • James N. Culver

    1. Institute for Bioscience and Biotechology Research, Department of Plant Science and Landscape Architecture, University of Maryland College Park, MD 20742, USA
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Abstract

Electrochemical methods were developed for the deposition of nanosilicon onto a 3D virus-structured nickel current collector. This nickel current collector is composed of self-assembled nanowire-like rods of genetically modified tobacco mosaic virus (TMV1cys), chemically coated in nickel to create a complex high surface area conductive substrate. The electrochemically depo­sited 3D silicon anodes demonstrate outstanding rate performance, cycling stability, and rate capability. Electrodeposition thus provides a unique means of fabricating silicon anode materials on complex substrates at low cost.

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