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High-Performance, Layered, 3D-LiCoO2 Cathodes with a Nanoscale Co3O4 Coating via Chemical Etching

Authors

  • Sookyung Jeong,

    1. Converging Research Center for Innovative Battery Technologies and Interdisciplinary School of Green Energy, lsan National Institute of Science and Technology (UNIST), Ulsan 689-798, South Korea
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  • Soojin Park,

    Corresponding author
    1. Converging Research Center for Innovative Battery Technologies and Interdisciplinary School of Green Energy, lsan National Institute of Science and Technology (UNIST), Ulsan 689-798, South Korea
    • Converging Research Center for Innovative Battery Technologies and Interdisciplinary School of Green Energy, lsan National Institute of Science and Technology (UNIST), Ulsan 689-798, South Korea
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  • Jaephil Cho

    Corresponding author
    1. Converging Research Center for Innovative Battery Technologies and Interdisciplinary School of Green Energy, lsan National Institute of Science and Technology (UNIST), Ulsan 689-798, South Korea
    • Converging Research Center for Innovative Battery Technologies and Interdisciplinary School of Green Energy, lsan National Institute of Science and Technology (UNIST), Ulsan 689-798, South Korea.
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Abstract

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Chemical etching concurrently modifies pristine to layer-by-layer 3D-LiCoO2 with a Co3O4 coating. Not only can the layered morphology affect the high electrochemical performance, but also the coating effect reduces the structure instability of the LiCoO2 during cycling. This process can be applied to design other compounds to enhance their performance in Li-ion batteries.

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