Nanomaterials (Dec 2022)

Advanced Nanostructured Materials for Electrocatalysis in Lithium–Sulfur Batteries

  • Zihui Song,
  • Wanyuan Jiang,
  • Xigao Jian,
  • Fangyuan Hu

DOI
https://doi.org/10.3390/nano12234341
Journal volume & issue
Vol. 12, no. 23
p. 4341

Abstract

Read online

Lithium–sulfur (Li-S) batteries are considered as among the most promising electrochemical energy storage devices due to their high theoretical energy density and low cost. However, the inherently complex electrochemical mechanism in Li-S batteries leads to problems such as slow internal reaction kinetics and a severe shuttle effect, which seriously affect the practical application of batteries. Therefore, accelerating the internal electrochemical reactions of Li-S batteries is the key to realize their large-scale applications. This article reviews significant efforts to address the above problems, mainly the catalysis of electrochemical reactions by specific nanostructured materials. Through the rational design of homogeneous and heterogeneous catalysts (including but not limited to strategies such as single atoms, heterostructures, metal compounds, and small-molecule solvents), the chemical reactivity of Li-S batteries has been effectively improved. Here, the application of nanomaterials in the field of electrocatalysis for Li-S batteries is introduced in detail, and the advancement of nanostructures in Li-S batteries is emphasized.

Keywords