Issue 45, 2021

Two-dimensional materials towards separator functionalization in advanced Li–S batteries

Abstract

Functional separators have played important roles in improving the electrochemical performance of lithium–sulfur (Li–S) batteries by addressing the key issues of both the sulfur cathode and lithium anode. Compared with other materials that are used for separator functionalization, two-dimensional (2D) materials with atomic layer thickness and infinite lateral dimensions feature several advantages of ultra-thin laminate structure, remarkable physical properties and tunable surface chemistry, which show potential applications in separator functionalization towards addressing the issues of both the shuttle effect and formation of Li dendrites in Li–S batteries. In this review, the unique advantages of 2D materials for separator functionalization in Li–S batteries and their common construction methods are introduced. Then, recent progress and advances in the construction of 2D materials functional separators are summarized in detail towards inhibiting the shuttle effect of polysulfides and suppressing Li dendrite growth in Li–S batteries. Finally, some opportunities and challenges of 2D materials for constructing high-performance functional separators are proposed. We anticipate that this review will provide new insights into separator functionalization for developing advanced Li–S batteries.

Graphical abstract: Two-dimensional materials towards separator functionalization in advanced Li–S batteries

Article information

Article type
Review Article
Submitted
20 ago 2021
Accepted
28 out 2021
First published
28 out 2021

Nanoscale, 2021,13, 18883-18911

Two-dimensional materials towards separator functionalization in advanced Li–S batteries

J. Tang, Q. Zhao, F. Li, Z. Hao, X. Xu, Q. Zhang, J. Liu, Y. Jin and H. Wang, Nanoscale, 2021, 13, 18883 DOI: 10.1039/D1NR05489A

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