Strategies to suppress polysulfide dissolution and its effects on lithium–sulfur batteries
File(s)
Published version
Author(s)
Cheung, Grace
Huang, Chun
Type
Journal Article
Abstract
Lithium–sulfur batteries (LSBs), with a high energy density (2600 W h kg−1) and theoretical specific capacity (1672 mA h g−1), are considered the most promising next-generation rechargeable energy storage devices. However, polysulfide dissolution and the shuttle effect cause severe capacity fading and the rapid loss of the active material; hence, these must be addressed first. This review provides an overview of various strategies employed to immobilise polysulfides via polysulfide trapping and physical and chemical adsorption using porous cathode designs, heterostructures, functionalised separators, and polymer binders. The working mechanism of each strategy is reviewed and discussed, highlighting their advantages and disadvantages, and they are analysed through comparisons of the battery performance and limitations in terms of practical applications. Finally, the future prospects for the design and synthesis of LSBs to limit polysulfide dissolution are discussed.
Date Issued
2025-04-03
Date Acceptance
2025-03-31
Citation
Batteries, 2025, 11 (4)
ISSN
2313-0105
Publisher
MDPI AG
Journal / Book Title
Batteries
Volume
11
Issue
4
Copyright Statement
© 2025 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/ licenses/by/4.0/).
License URL
Identifier
10.3390/batteries11040139
Subjects
lithium-sulfur battery
polysulfide dissolution
shuttle effect
Publication Status
Published
Article Number
139
Date Publish Online
2025-04-03