Lithium-Sulfur Batteries

Lithium-Sulfur Batteries

Materials, Challenges and Applications
2022, Pages 289-314
Lithium-Sulfur Batteries

14 - Graphene–sulfur nanocomposites as cathode materials and separators for lithium–sulfur batteries

https://doi.org/10.1016/B978-0-323-91934-0.00020-XGet rights and content

Abstract

Lithium–sulfur (Li–S) batteries are among the most promising energy-storage systems with high energy density; however, the poor conductivity of sulfur and the shuttle effect of polysulfides hamper their further practical application. As an emerging 2-D single-atom-thick carbon, graphene has addressed most concerns about 3-D conductivity enhancement, volume change tolerance, and polysulfide shuttling suppression. Therefore, graphene may advance Li–S battery development into a wide range of practical applications. This chapter considers the related roles of graphene in cathodes and separators, the mechanisms and varied design of nanostructured graphene/sulfur composite materials, and the fabrication of electrodes and batteries. Challenges and perspectives in the development of promising Li–S batteries are also discussed.

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