Advanced Materials

Hydrogenated Li4Ti5O12 Nanowire Arrays for High Rate Lithium Ion Batteries

Authors

  • Laifa Shen,

    1. College of Material Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
    2. Department of Materials Science and Engineering, University of Washington, Seattle, WA 98195, USA
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  • Evan Uchaker,

    1. Department of Materials Science and Engineering, University of Washington, Seattle, WA 98195, USA
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  • Xiaogang Zhang,

    Corresponding author
    1. College of Material Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
    • College of Material Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
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  • Guozhong Cao

    Corresponding author
    1. Department of Materials Science and Engineering, University of Washington, Seattle, WA 98195, USA
    • Department of Materials Science and Engineering, University of Washington, Seattle, WA 98195, USA.
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Abstract

Self-supported Li4Ti5O12 nanowire arrays with high conductivity architectures are designed and fabricated for application in a Li-ion battery. The Li4Ti5O12 nanowire arrays grow directly on Ti foil by a facile solution-based method, further enhancing Li-ion storage properties by creating Ti3+ sites through hydrogenation. This configuration ensures that every Li4Ti5O12 nanowire participates in the fast electrochemical reaction, enabling remarkable rate performance and a long cycle life.

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