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Highly Reversible Lithium/Dissolved Polysulfide Batteries with Carbon Nanotube Electrodes

Authors

  • Dr. Yongzhu Fu,

    1. Materials Science and Engineering Program, Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712 (USA)
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  • Yu-Sheng Su,

    1. Materials Science and Engineering Program, Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712 (USA)
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  • Prof. Arumugam Manthiram

    Corresponding author
    1. Materials Science and Engineering Program, Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712 (USA)
    • Materials Science and Engineering Program, Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712 (USA)

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  • This work was supported by Seven One Limited. We thank Thomas Cochell for his assistance with the XPS measurements and Karin M. Keller for the liquid chromatography analysis.

Abstract

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On paper: A lithium/dissolved polysulfide cell is developed utilizing a self-weaving, free-standing multiwalled carbon nanotube (MWCNT) “paper” as a host for the dissolved polysulfide active material and the reaction products. Exceptionally high capacities of 1600 mAh g−1 initially and 1411 mAh g−1 after 50 cycles (based on the mass of sulfur) are obtained at a rate of C/10.

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