Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/155660
Title: The importance of the dissolution of polysulfides in lithium-sulfur batteries and a perspective on high-energy electrolyte/cathode design
Authors: Yu, Linghui
Ong, Samuel Jun Hoong
Liu, Xianhu
Mandler, Daniel
Xu, Jason Zhichuan
Keywords: Engineering::Materials
Issue Date: 2021
Source: Yu, L., Ong, S. J. H., Liu, X., Mandler, D. & Xu, J. Z. (2021). The importance of the dissolution of polysulfides in lithium-sulfur batteries and a perspective on high-energy electrolyte/cathode design. Electrochimica Acta, 392, 139013-. https://dx.doi.org/10.1016/j.electacta.2021.139013
Project: 2019-T1-002- 125
Journal: Electrochimica Acta
Abstract: The dissolution of polysulfides is widely considered to be a major obstacle for developing lithium-sulfur batteries (LSBs) because it results in a shuttle effect. A popular strategy to address this issue is preventing polysulfide dissolution, e.g., trapping/confining polysulfides in porous carbons. However, this conflicts with the advantage of commonly used ether-based electrolytes, i.e., the dissolution of polysulfides in such electrolytes is beneficial for delivering Li+ to sulfur-based species compared to sluggish solid-state transport. Thus, a question is raised on the feasibility of the strategy to prevent polysulfide dissolution. Here, it is shown that the dissolution of polysulfides in ether-based electrolytes is necessary for a high capacity, suggesting that it might not be right to prevent the dissolution of polysulfides in such electrolytes. Thus, other approaches should be developed. A perspective is hence provided for designing electrolyte/cathode for high-energy LSBs.
URI: https://hdl.handle.net/10356/155660
ISSN: 0013-4686
DOI: 10.1016/j.electacta.2021.139013
Rights: © 2021 Elsevier Ltd. All rights reserved. This paper was published in Electrochimica Acta and is made available with permission of Elsevier Ltd.
Fulltext Permission: embargo_20231008
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

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