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Single-atom site catalysis in Li-S batteries.

Kun WangSheng LiuZhenghao ShuQingyi ZhengMing-Sen ZhengQuan Feng Dong
Published in: Physical chemistry chemical physics : PCCP (2023)
With their high theoretical energy density, Li-S batteries are regarded as the ideal battery system for next generation electrochemical energy storage. In the last 15 years, Li-S batteries have made outstanding academic progress. Recently, research studies have placed more emphasis on their practical application aspects, which puts forward strict requirements for the loading of S cathodes and the amount of electrolytes. To meet the above requirements, electrode catalysis design is of crucial significance. Among all the catalysts, single-atom site catalysts (SASCs) are considered to be ideal catalyst materials for the commercialization of Li-S batteries due to their high activity and highest utilization of catalytic sites. This perspective introduces the kinetic mechanism of S cathodes, the basic concept and synthesis strategy of SASCs, and then systematically summarizes the research progress of SASCs for S cathodes and, the related functional interlayers/separators in recent years. Finally, the opportunities and challenges of SASCs in Li-S batteries are summarized and prospected.
Keyphrases
  • solid state
  • ion batteries
  • highly efficient
  • ionic liquid
  • molecular dynamics
  • metal organic framework
  • mass spectrometry
  • electron transfer
  • room temperature
  • label free