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An Advanced Lithium-Sulfur Battery

Authors

  • Junghoon Kim,

    1. Department of WCU Energy Engineering, Hanyang University, Seoul 133-791, Republic of Korea
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  • Dong-Ju Lee,

    1. Department of WCU Energy Engineering, Hanyang University, Seoul 133-791, Republic of Korea
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  • Hun-Gi Jung,

    1. Department of WCU Energy Engineering, Hanyang University, Seoul 133-791, Republic of Korea
    2. Department of Chemical Engineering, Hanyang University, Seoul 133-791, Republic of Korea
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  • Yang-Kook Sun,

    Corresponding author
    1. Department of WCU Energy Engineering, Department of Chemical Engineering, Hanyang University, Seoul 133-791, Republic of Korea
    • Department of WCU Energy Engineering, Department of Chemical Engineering, Hanyang University, Seoul 133-791, Republic of Korea
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  • Jusef Hassoun,

    Corresponding author
    1. Department of Chemistry, University of Rome Sapienza, Rome, 00185 (Italy), Department of WCU Energy Engineering, Hanyang University, Seoul 133-791, Republic of Korea
    • Department of Chemistry, University of Rome Sapienza, Rome, 00185 (Italy), Department of WCU Energy Engineering, Hanyang University, Seoul 133-791, Republic of Korea.
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  • Bruno Scrosati

    Corresponding author
    1. Department of Chemistry, University of Rome Sapienza, Rome, 00185 (Italy), Department of WCU Energy Engineering, Hanyang University, Seoul 133-791, Republic of Korea
    • Department of Chemistry, University of Rome Sapienza, Rome, 00185 (Italy), Department of WCU Energy Engineering, Hanyang University, Seoul 133-791, Republic of Korea.
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Abstract

A lithium-sulfur battery employing a high performances mesoporous hard carbon spherules-sulfur cathode and a stable, highly conducting electrolyte is reported. The results demonstrate that the battery cycles with very high capacity, i.e., of the order of 750 mAh g−1 with excellent retention during cycling. In addition, by exploiting the high conductivity of our selected electrolyte, the battery performs very well also at low temperature, i.e., delivering a capacity of 500 mAh g−1(S) at 0 °C for over 170 charge-discharge cycles. We believe that these results may substantially contribute to the progress of the lithium-sulfur battery technology.

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