Dual-Function Perovskite Catalytic Layer for High-Performance Lithium Sulfur Batteries

In order to solve the shuttle effect problem of energy storage devices, especially lithium–sulfur batteries, and achieve the goal of producing safe, reliable, and excellent lithium–sulfur batteries, this study uses lanthanide perovskite materials (LaCoO3) to modify the surface of sulfur electrodes and form an isolated catalytic layer. Through the coordination of chemisorption and catalytic conversion, lithium–sulfur batteries with a dual-function catalytic layer show excellent electrochemical capabilities, including high reversible capacity, excellent rate capacity, good cycle stability, and a long cycle life.