Issue 29, 2022

Advanced cathodic free-standing interlayers for lithium–sulfur batteries: understanding, fabrication, and modification

Abstract

In the past decades, lithium–sulfur batteries (LSBs) have demonstrated huge practical potential due to their ultrahigh theoretical specific capacity, low price, and environmental friendliness. However, LSBs are still faced with the problems of volumetric expansion, slow reaction kinetics, and short working life due to the shuttling of polysulfides. The introduction of a free-standing interlayer is a good way to solve the problems because of the physical confinement, chemical entrapment, and conversion. This review summarizes the common fabrication methods of free-standing interlayers, including the power-originated and film-originated methods. The modification of the as-prepared free-standing interlayers is also accomplished into physical treatment, atomic doping, and compound introduction. Finally, we conclude and compare the different fabrication methods of free-standing interlayers and their modifications and put forward the outlook of the high-performance free-standing interlayers.

Graphical abstract: Advanced cathodic free-standing interlayers for lithium–sulfur batteries: understanding, fabrication, and modification

Article information

Article type
Perspective
Submitted
09 5 2022
Accepted
29 6 2022
First published
05 7 2022

Phys. Chem. Chem. Phys., 2022,24, 17383-17396

Advanced cathodic free-standing interlayers for lithium–sulfur batteries: understanding, fabrication, and modification

J. Zhou, T. Wu, X. Zhou and J. Xi, Phys. Chem. Chem. Phys., 2022, 24, 17383 DOI: 10.1039/D2CP02097A

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