A Review on Engineering Transition Metal Compound Catalysts to Accelerate the Redox Kinetics of Sulfur Cathodes for Lithium–Sulfur Batteries

Abstract

Highlights The representatively engineering strategies of cations/anions doping, bimetallic/bi-anionic transition metal compounds and heterostructure composites catalysts for lithium sulfur batteries are comprehensively reviewed. The promoted mechanism of catalytic performance by regulating electronic structure is focused on, including energy band, electron filling, d/p-band center, valence state. The superiority of the modified transition metal compounds is comprehensively summarized.

Keywords

• Lithium–sulfur battery
• Redox kinetic
• Transition metal compounds catalyst
• Multiple metals/anions