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A thin TiO2 NTs/GO hybrid membrane applied as an interlayer for lithium-sulfur batteries

机译：薄的TiO2 NTS / GO杂化膜作为锂 - 硫电池的中间层施用

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摘要

Lithium-sulfur batteries hold great promise for serving as next generation high energy density batteries. However, the shuttle of polysulfide induces rapid poor cycling stability of lithium-sulfur cells. Using an interlayer inserted between the sulfur cathode and the separator to capture these soluble intermediates can diminish this effect effectively. Herein, a ultrathin TiO2 nanotubes/graphene oxide (TiO2 NTs/GO) hybrid membrane (the thickness is less than 10 mm) used as an interlayer in lithium sulfur battery can effectively improve the cycle performance by trapping the soluble polysulfides. As a result, the sulfur cathode with TiO2 NTs/GO hybrid membrane as interlayer exhibits an initial discharge capacity of 1431.5 mA h g(-1) and maintains the reversible capacity of 845.8 mA h g(-1) at 0.1C after 100 cycles.
机译：锂 - 硫磺电池占据了下一代高能量密度电池的良好承担。 然而，聚硫化物的梭终止锂 - 硫细胞的循环稳定性快速差。 使用插入硫阴极和分离器之间的层间捕获这些可溶性中间体可以有效地减少这种效果。 这里，用作锂硫电池中间夹层的超薄TiO 2纳米管/石墨烯（TiO 2 NTS / GO）杂化膜（厚度小于10mm）可以通过捕获可溶性多硫化物来有效地改善循环性能。 结果，具有TiO2 NTS / GO杂化膜作为中间层的硫阴极表现出1431.5mA H（-1）的初始放电容量，并在100次循环后在0.1℃下保持845.8mA H（-1）的可逆容量。

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  • 来源
    《RSC Advances》 |2018年第1期|共6页
  • 作者

    Song Haimei; Zuo Chen; Xu Xiaoqian; Wan Yuanxin; Wang Lijie; Zhou Dongshan; Chen Zhijun;

  • 作者单位

    Zhengzhou Univ Light Ind Sch Mat &

    Chem Engn Henan Prov Key Lab Surface &

    Interface Sci Zhengzhou 450002 Henan Peoples R China;

    Nanjing Univ Dept Polymer Sci &

    Engn Sch Chem &

    Chem Engn State Key Lab Coordinat Chem Nanjing Natl Lab Mic Nanjing 210093 Jiangsu Peoples R China;

    Nanjing Univ Dept Polymer Sci &

    Engn Sch Chem &

    Chem Engn State Key Lab Coordinat Chem Nanjing Natl Lab Mic Nanjing 210093 Jiangsu Peoples R China;

    Peking Univ Shenzhen Grad Sch Sch Adv Mat Shenzhen 518055 Peoples R China;

    Zhengzhou Univ Light Ind Sch Mat &

    Chem Engn Henan Prov Key Lab Surface &

    Interface Sci Zhengzhou 450002 Henan Peoples R China;

    Nanjing Univ Dept Polymer Sci &

    Engn Sch Chem &

    Chem Engn State Key Lab Coordinat Chem Nanjing Natl Lab Mic Nanjing 210093 Jiangsu Peoples R China;

    Zhengzhou Univ Light Ind Sch Mat &

    Chem Engn Henan Prov Key Lab Surface &

    Interface Sci Zhengzhou 450002 Henan Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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