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A strategic approach to recharging lithium-sulphur batteries for long cycle life

Author

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  • Yu-Sheng Su

    (Materials Science and Engineering Program, The University of Texas at Austin)

  • Yongzhu Fu

    (Materials Science and Engineering Program, The University of Texas at Austin)

  • Thomas Cochell

    (Materials Science and Engineering Program, The University of Texas at Austin)

  • Arumugam Manthiram

    (Materials Science and Engineering Program, The University of Texas at Austin)

Abstract

The success of rechargeable lithium-ion batteries has brought indisputable convenience to human society for the past two decades. However, unlike commercialized intercalation cathodes, high-energy-density sulphur cathodes are still in the stage of research because of the unsatisfactory capacity retention and long-term cyclability. The capacity degradation over extended cycles originates from the soluble polysulphides gradually diffusing out of the cathode region. Here we report an applicable way to recharge lithium-sulphur cells by a simple charge operation control that offers tremendous improvement with various lithium-sulphur battery systems. Adjusting the charging condition leads to long cycle life (over 500 cycles) with excellent capacity retention (>99%) by inhibiting electrochemical reactions along with severe polysulphide dissolution. This charging strategy and understanding of the reactions in different discharge steps will advance progress in the development of lithium-sulphur batteries.

Suggested Citation

  • Yu-Sheng Su & Yongzhu Fu & Thomas Cochell & Arumugam Manthiram, 2013. "A strategic approach to recharging lithium-sulphur batteries for long cycle life," Nature Communications, Nature, vol. 4(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms3985
    DOI: 10.1038/ncomms3985
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    Cited by:

    1. Jung Tae Kim & Adwitiya Rao & Heng-Yong Nie & Yang Hu & Weihan Li & Feipeng Zhao & Sixu Deng & Xiaoge Hao & Jiamin Fu & Jing Luo & Hui Duan & Changhong Wang & Chandra Veer Singh & Xueliang Sun, 2023. "Manipulating Li2S2/Li2S mixed discharge products of all-solid-state lithium sulfur batteries for improved cycle life," Nature Communications, Nature, vol. 14(1), pages 1-10, December.

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