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Si-Composite Anode for Lithium-Ion Batteries with High Initial Coulombic Efficiency

Authors

  • Dr. Xingkang Huang,

    1. Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 3200 N Cramer Street, Milwaukee, WI 53211 (USA)
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  • Haejune Kim,

    1. Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 3200 N Cramer Street, Milwaukee, WI 53211 (USA)
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  • Shumao Cui,

    1. Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 3200 N Cramer Street, Milwaukee, WI 53211 (USA)
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  • Patrick T. Hurley,

    1. Global Technology & Innovation, Power Solutions, Johnson Controls, 5757 N Green Bay Avenue, Milwaukee, WI 53209 (USA)
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  • Prof. Junhong Chen

    Corresponding author
    1. Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 3200 N Cramer Street, Milwaukee, WI 53211 (USA)
    • Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 3200 N Cramer Street, Milwaukee, WI 53211 (USA)
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Abstract

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An ode to anodes: Si–Fe–Al composite materials are synthesized by high-energy ball-milling as anodes for lithium-ion batteries. The as-prepared Si composite anodes deliver high capacity values, high Coulombic efficiencies, and good cycle performance. The performance is mainly attributed to the unique structure of elemental Si uniformly distributed amongst inactive intermetallic phases.

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