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Carbon-Based Anodes for Lithium Sulfur Full Cells with High Cycle Stability

机译：具有高循环稳定性的锂硫全电池的碳基阳极

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摘要

The lithium sulfur battery system has been studied since the late 1970s and has seen renewed interest in recent years. However, even after three decades of intensive research, prolonged cycling can only be achieved when a large excess of electrolyte and lithium is used. Here, for the first time, a balanced and stable lithium sulfur full cell is demonstrated with silicon-carbon as well as all-carbon anodes. More than 1000 cycles, a specific capacity up to 1470 mAh g~(-1sulfur), (720 mAh g~(-1cathode),and a high coulombic efficiency of over 99% even with a low amount of electrolyte are achieved. The alternative anodes do not suffer from electrolyte depletion, which is found to be the main cause of cell failure when using metallic lithium anodes.
机译：自1970年代末以来一直在研究锂硫电池系统，并在最近几年引起了新的兴趣。然而，即使经过三十年的深入研究，也只有在使用大量过量的电解质和锂时才能实现延长的循环。在这里，首次展示了平衡，稳定的锂硫全电池以及硅碳阳极和全碳阳极。超过1000个循环，实现了高达1470 mAh g〜（-1硫），（720 mAh g〜（-1阴极））的比容量，即使在电解质用量较低的情况下，库仑效率也高达99％以上。阳极不会遭受电解质的消耗，这是使用金属锂阳极时导致电池故障的主要原因。

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  • 来源
    《Advanced Functional Materials》 |2014年第9期|1284-1289|共6页
  • 作者

    Jan Brueckner; Soeren Thieme; Falko Boettger-Hiller; Ingolf Bauer; Hannah Tamara Crossmann; Patrick Strubel; Holger Althues; Stefan Spange; Stefan Kaskel;

  • 作者单位

    Fraunhofer Institute for Material and Beam Technology (IWS) Winterbergstrafsse 28, 01277, Dresden, Germany;

    Fraunhofer Institute for Material and Beam Technology (IWS) Winterbergstrafsse 28, 01277, Dresden, Germany;

    Chair Polymer Chemistry Chemnitz University of Technology Strasse der Nationen 62, 09111, Chemnitz, Germany;

    Fraunhofer Institute for Material and Beam Technology (IWS) Winterbergstrafsse 28, 01277, Dresden, Germany;

    Fraunhofer Institute for Material and Beam Technology (IWS) Winterbergstrafsse 28, 01277, Dresden, Germany;

    Fraunhofer Institute for Material and Beam Technology (IWS) Winterbergstrafsse 28, 01277, Dresden, Germany;

    Fraunhofer Institute for Material and Beam Technology (IWS) Winterbergstrafsse 28, 01277, Dresden, Germany;

    Chair Polymer Chemistry Chemnitz University of Technology Strasse der Nationen 62, 09111, Chemnitz, Germany;

    Fraunhofer Institute for Material and Beam Technology (IWS) Winterbergstrafsse 28, 01277, Dresden, Germany,Chair Inorganic Chemistry I Dresden University of Technology Bergstraeee 66, D-01062, Dresden, Germany;

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