抑制多硫化物穿梭的锂硫电池改性隔膜研究进展

Lithium-sulfur (Li-S) batteries have become a focal point for next-generation energy storage technologies due to their high theoretical specific capacity and energy density. However, their practical application is limited by challenges such as volume expansion of sulfur cathodes, the shuttle effect of lithium polysulfides, and lithium dendrite growth. As conventional polyolefin separators struggle to suppress the dissolution and diffusion of LiPSs, leading to active material loss and capacity degradation, researchers have focused on modifying separators to address these issues. This review summarizes the challenges faced by separators in Li-S batteries and recent research progress in modified separators. It emphasizes the design and preparation of modified separators through physical adsorption, chemical adsorption, and catalytic conversion mechanisms to enhance the electrochemical performance of Li-S batteries, providing references and insights for the future development of high-performance Li-S batteries.