Issue 40, 2019

MXene-engineered lithium–sulfur batteries

Abstract

Lithium–sulfur (Li–S) batteries are one of the promising next-generation energy storage systems. Tremendous efforts have been devoted to developing conductive nanoarchitectures for improving sulfur utilization and cycling stability. MXenes, a family of 2D transition metal carbides, nitrides and carbonitrides, have recently captured considerable attention in energy storage and conversion. Herein, we have summarized recent advances of MXene-based materials in the cathodes, anodes and separators of Li–S batteries and highlighted the theoretical and experimental importance of high polarity and rich surface chemistry in polysulfide trapping. Their superiority for suppressing polysulfide shuttling and improving sulfur utilization has been demonstrated. We have also concluded the perspectives and challenges that need to be addressed for MXene-based Li–S batteries and some new strategies have been proposed to improve the electrochemical performance, which shed light on future development of MXene-based materials in high-energy-density Li–S batteries.

Graphical abstract: MXene-engineered lithium–sulfur batteries

Article information

Article type
Review Article
Submitted
06 Aug. 2019
Accepted
10 Sept. 2019
First published
11 Sept. 2019

J. Mater. Chem. A, 2019,7, 22730-22743

MXene-engineered lithium–sulfur batteries

Z. Xiao, Z. Li, X. Meng and R. Wang, J. Mater. Chem. A, 2019, 7, 22730 DOI: 10.1039/C9TA08600E

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