reviewACS NanoOct 12, 2022Closed access

Understanding the Catalytic Kinetics of Polysulfide Redox Reactions on Transition Metal Compounds in Li–S Batteries

JWJiao WuTYTong YeYWYuchao WangPYPeiyao YangQWQichen Wang

Central South University of Forestry and Technology · Central South University · +2 more institutions

PubMed
Indexed incrossrefpubmed

Abstract

Because of their high energy density, low cost, and environmental friendliness, lithium–sulfur (Li–S) batteries are one of the potential candidates for the next-generation energy-storage devices. However, they have been troubled by sluggish reaction kinetics for the insoluble Li2S product and capacity degradation because of the severe shuttle effect of polysulfides. These problems have been overcome by introducing transition metal compounds (TMCs) as catalysts into the interlayer of modified separator or sulfur host. This review first introduces the mechanism of sulfur redox reactions. The methods for studying TMC catalysts in Li–S batteries are provided. Then, the recent advances of TMCs (such as metal…

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340
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FWCI
28.07
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100%
References
193
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Authors

12

Topics & keywords

Topics
Keywords
  • Polysulfide
  • Catalysis
  • Redox
  • Transition metal
  • Materials science
  • Metal
  • Sulfur
  • Energy storage
UN Sustainable Development Goals
  • Affordable and clean energy
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