Design of graded porous carbon and study in lithium-sulfur batteries

• 1、University of Science and Technology Beijing,School of Metallurgy and Ecological Engineering, Beijing 100083

Abstract：Graded porous carbon materials, with their unique microporous, mesoporous and macroporous structures, show great potential in fields such as energy storage and catalysis.Especially as anode materials, graded porous carbon materials can effectively solve the shuttle effect of lithium-sulfur batteries and improve the cycle stability and capacity retention of the batteries.This paper reviews the design of graded porous carbon materials and their applications in lithium-sulfur batteries, elaborates on the common methods of preparing graded porous carbon materials such as hard template method, soft template method and self-template method, and demonstrates the application effects of these methods in enhancing the performance of lithium-sulfur batteries through specific examples.The future research directions of graded porous carbon materials are envisioned, including the development of low-cost and scalable preparation methods, and the in-depth study of the reaction state of sulfur within the multistage pores, etc., which will provide an important pathway for the commercialization of high-energy-density lithium-sulfur batteries.

Keywords： Porous carbon Template method Graded porous carbon Lithium-sulfur batteries