4.6 Article

Electrostatic trapping of polysulfides enabled by imidazolium-based ionic polymers for high-energy-density lithium-sulfur batteries

Journal

JOURNAL OF MATERIALS CHEMISTRY A
Volume 6, Issue 17, Pages 7375-7381

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ta01298a

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Funding

  1. National Natural Science Foundation of China [21673241, 21671039, 21471151]
  2. Natural Science Foundation of Fujian Province [2015J01038]
  3. Strategic Priority Research Program of the Chinese Academy of Sciences [XDB20000000]

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An electrostatic attraction strategy based on main-chain imidazolium-based ionic polymer (ImIP) has been presented to suppress the shuttle effect of polysulfides in lithium-sulfur batteries. The resultant electrodes show much higher reversible capacity, cycling stability, rate performance and structural integrity during cycling than their counterpart without ImIP.

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