Electrodes: Advanced Extremely Durable 3D Bifunctional Air Electrodes for Rechargeable Zinc-Air Batteries (Adv. Energy Mater. 6/2014)

Authors

  • Dong Un Lee,

    1. Department of Chemical Engineering, Waterloo Institute for Nanotechnology, Waterloo Institute for Sustainable Energy, University of Waterloo, Waterloo, ON, Canada
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  • Ja-Yeon Choi,

    1. Department of Chemical Engineering, Waterloo Institute for Nanotechnology, Waterloo Institute for Sustainable Energy, University of Waterloo, Waterloo, ON, Canada
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  • Kun Feng,

    1. Department of Chemical Engineering, Waterloo Institute for Nanotechnology, Waterloo Institute for Sustainable Energy, University of Waterloo, Waterloo, ON, Canada
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  • Hey Woong Park,

    1. Department of Chemical Engineering, Waterloo Institute for Nanotechnology, Waterloo Institute for Sustainable Energy, University of Waterloo, Waterloo, ON, Canada
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  • Zhongwei Chen

    Corresponding author
    1. Department of Chemical Engineering, Waterloo Institute for Nanotechnology, Waterloo Institute for Sustainable Energy, University of Waterloo, Waterloo, ON, Canada
    • Department of Chemical Engineering, Waterloo Institute for Nanotechnology, Waterloo Institute for Sustainable Energy, University of Waterloo, 200 University Ave. West, Waterloo ON Canada N2L 3G1

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Abstract

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Advanced air electrodes composed of cobalt oxide nanowire arrays grown directly onto stainless steel mesh current collectors, reported by Zhongwei Chen and co-workers in article number 1301389, show remarkable rechargeable zinc-air battery performance. Specifically, the electrode shows bifunctional activity towards both the oxygen reduction and evolution reactions, demonstrating up to 600 h of cycling stability utilizing air under ambient conditions. This paves the way for the application of this promising battery technology in electric vehicles, smart-grid scale energy storage, and portable electronics.

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