The surface binding and energy issues in rational design of the separation membrane of Li||S batteries

TL;DR

This paper reviews recent advances in designing separation membranes for lithium-sulfur batteries, focusing on surface binding and energy issues to improve stability and performance for practical energy storage applications.

Contribution

It provides a comprehensive analysis of surface interaction strategies in membrane design to enhance lithium-sulfur battery stability and efficiency.

Findings

Functionalization improves membrane stability.

Optimized surface energy reduces polysulfide dissolution.

Design strategies enhance battery lifespan.

Abstract

Lithium-sulfur batteries (LSBs) represent one of the most promising next-generation energy storage technologies, offering exceptionally high energy densities. However, their widespread adoption remains hindered by challenges such as sluggish conversion reactions and the dissolution of lithium polysulfides, which lead to poor cycling stability and reduced performance. While significant efforts have been made to address these limitations, the energy storage capabilities of LSBs in practical devices remain far from achieving their full potential. This report delves into recent advancements in the rational design of separation membranes for LSBs, focusing on addressing fundamental issues related to surface binding and surface energy interactions within materials science. By examining the functionalization and optimization of separation membranes, we aim to highlight strategies that can guide the development of more robust and efficient LSBs, bringing them closer to practical implementation.