Volume 36 Issue 1
Feb.  2021
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SHAO Zhi-tao, WU Li-li, YANG Yue, MA Xin-zhi, LI Lu, YE Hong-feng, ZHANG Xi-tian. Carbon nanotube-supported MoSe2 nanoflakes as an interlayer for lithium-sulfur batteries[J]. NEW CARBOM MATERIALS, 2021, 36(1): 219-226. doi: 10.1016/S1872-5805(21)60015-X
Citation: SHAO Zhi-tao, WU Li-li, YANG Yue, MA Xin-zhi, LI Lu, YE Hong-feng, ZHANG Xi-tian. Carbon nanotube-supported MoSe2 nanoflakes as an interlayer for lithium-sulfur batteries[J]. NEW CARBOM MATERIALS, 2021, 36(1): 219-226. doi: 10.1016/S1872-5805(21)60015-X

Carbon nanotube-supported MoSe2 nanoflakes as an interlayer for lithium-sulfur batteries

doi: 10.1016/S1872-5805(21)60015-X
Funds:  This work was partially supported by National Natural Science Foundation of China (11504097, 51772069), and Fundamental Research Funds for the Provincial Universities of Heilongjiang
More Information
  • Author Bio:

    SHAO Zhi-tao , Master student. E-mail: sztstudy@163.com

  • Corresponding author: WU Li-li, Ph.D, Professor. E-mail: wll790107@hotmail.com; ZHANG Xi-tian , Ph.D, Professor. E-mail: xtzhangzhang@hotmail.com
  • Received Date: 2020-11-08
  • Rev Recd Date: 2020-12-18
  • Available Online: 2021-02-03
  • Publish Date: 2021-02-02
  • Intrinsic polysulfide shuttling is the most fatal problem with Li-S batteries but it can be suppressed by functionalizing the separators with strong lithium polysulfide absorbents. Carbon nanotube (CNT)-supported MoSe2 nanoflakes with a large interlayer spacing were coated on a commercial polypropylene separator to build an efficient barrier (M/C-PP) to polysulfide shuttling for Li-S batteries. The battery with the separator had initial specific capacities of 1 485 and 880 mAh g−1 at 0.1 and 2 C, respectively, and an excellent long-term cycling stability with a low decay rate of 0.093% per cycle at 0.5 C after 300 cycles. This excellent performance was attributed to the strong adsorption of polysulfides by MoSe2 and the fast charge transport channels provided by the CNTs.
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