Inhibiting polysulfide shuttling using dual-functional nanowire/nanotube modified layers for highly stable lithium-sulfur batteries

Yizhou Wang, Wenhui Liu, Ruiqing Liu*, Peifeng Pan, Liyao Suo, Jun Chen, Xiaomiao Feng, Xizhang Wang, Yanwen Ma, Wei Huang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


The shuttle effect of dissolvable polysulfides (PSs) severely deteriorates the cycling performances of lithium-sulfur (Li-S) batteries and consequently hampers their practical application. To inhibit the PS shuttle effect, here we designed a modified separator by directly coating a thin layer of ultralong one-dimensional MnO2 nanowires (NWs) interlaced with carbon nanotubes (CNTs) on a commercial polypropylene (PP) separator. Such a MnO2/CNT modified layer exhibits dual functions to effectively trap and reutilize the dissolved PSs, where the MnO2 NWs allow the chemical adsorption of the PSs while the CNTs form a conductive network for electron transfer to accelerate the PS redox reaction. Meanwhile, the migration of lithium ions will not be influenced due to the porous structure formed by these NWs and nanotubes. This MnO2/CNT/PP separator can significantly inhibit PS shuttling in comparison with neat MnO2 NW or CNT modified separators. Using the optimal separator, we demonstrate a highly stable Li-S battery with an initial capacity of 843.7 mA h g-1 at 1C, and a capacity retention of 68.03% over 500 cycles. This study shows a comprehensive design strategy for a modified separator to inhibit the PS shuttle effect for highly stable Li-S batteries.

Original languageEnglish (US)
Pages (from-to)14708-14713
Number of pages6
JournalNew Journal of Chemistry
Issue number37
StatePublished - 2019

Bibliographical note

Funding Information:
This work was jointly supported by the NSFC (51772157 and 21805140), the NSF of Jiangsu Province (BK20160890), the Priority Academic Program Development of Jiangsu Higher Education Institutions (YX03001), the China Postdoctoral Science Foundation (2018M642287), the Jiangsu Province Postdoctoral Research Grant Program (2018K156C), the Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), the Synergistic Innovation Center for Organic Electronics and Information Displays, Jiangsu Province ‘‘Six Talent Peak’’ (2015-JY-015), and the Qing Lan Project of Jiangsu Province, and Scientific Research Foundation of NUPT (NY217004, NY215014, and NY215152).

Publisher Copyright:
© 2019 The Royal Society of Chemistry and the Centre National de la Recherche Scientifique.

ASJC Scopus subject areas

  • Catalysis
  • General Chemistry
  • Materials Chemistry


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