Review—The Importance of Chemical Interactions between Sulfur Host Materials and Lithium Polysulfides for Advanced Lithium-Sulfur Batteries
By Q. Pang, Xiao Liang, C. Y. Kwok, L. Nazar. 2015
288 citations recorded by the source corpus.
This overview details the recently recognized importance of strong chemical interactions between sulfur host materials and lithium polysulfides/sulfide to improve the performance of Li-S batteries, especially with respect to cycle life. Sulfur hosts consisting of: functionally modified surfaces, metal oxides and carbides that rely on either polar interactions or the thiosulfate mechanism for sulfide binding, metal-organic frameworks that exhibit Lewis-acid behavior, and functional polymers are reviewed. We summarize a variety of studies that explore the nature and strength of the interaction of these materials with polysulfides and its effect on cycle life, showing that capacity fading is reduced to as low as 0.03% per cycle with effective functional cathode host surfaces. © The Author(s) 2015. Published by ECS. This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 License (CC BY, http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse of the work in any medium, provided the original work is properly cited. [DOI: 10.1149/2.0171514jes] All rights reserved.
Subfields: Electrical and Electronic Engineering, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/6c468d9c36c7215c2966d328ec2dfbacaa21b4c0
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