Issue 37, 2022

Advances in understanding and regulation of sulfur conversion processes in metal–sulfur batteries

Abstract

Lithium–sulfur batteries (LSBs) have attracted intensive attention as promising next-generation energy storage systems, due to the high energy density and low cost of sulfur cathodes. Despite the substantial progress in improving LSBs’ performance, their wide implementation still suffers from great challenges, including the difficulties in achieving practically high energy density with long cycle life and the concerns about the limited lithium resources. The former issue mainly arises from the insufficient understanding of the mechanics of the complex lithium–sulfur redox reactions, while the latter trigger the exploration of a range of new metal–sulfur systems, such as sodium–sulfur, potassium–sulfur, magnesium–sulfur, calcium–sulfur, and aluminum–sulfur batteries. These lithium-free metal–sulfur batteries (MSBs) have the potential to offer higher energy density or/and lower battery costs. The fundamental understanding and rational regulation of effective metal–sulfur conversion reactions are crucial for developing advanced and emerging MSBs. Herein, this work aims to overview the state-of-the-art progress in circumventing these issues of MSBs, in terms of working mechanisms, key factors determining the electrochemical behavior and battery performance. Advanced in situ characterization techniques used to disclose the sulfur conversion mechanisms are also elaborately discussed. Conclusions and perspectives for the future research direction in MSBs are proposed.

Graphical abstract: Advances in understanding and regulation of sulfur conversion processes in metal–sulfur batteries

Article information

Article type
Review Article
Submitted
21 3月 2022
Accepted
04 7月 2022
First published
06 7月 2022

J. Mater. Chem. A, 2022,10, 19412-19443

Advances in understanding and regulation of sulfur conversion processes in metal–sulfur batteries

F. Shi, J. Yu, C. Chen, S. P. Lau, W. Lv and Z. Xu, J. Mater. Chem. A, 2022, 10, 19412 DOI: 10.1039/D2TA02217F

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements