Although lithium-sulfur batteries are considered one of the most potential next-generation energy storage systems owing to their high-energy density, the dissolution and shuttle of intermediate lithium polysulfides primarily limit their commercial applications. Currently, the search for new materials for high-performance lithium-sulfur batteries has become a global research hotspot. MXenes, two dimensional inorganic compound comprising several layers of transition metal carbide, nitride, or car-bonitride, are actively investigated owing to their large specific surface area, good conductivity, and excellent cycle and rate performance. This article firstly reviews the breakthrough of MXenes in lithium-sulfur batteries, introduces the preparation methods and structural characteristics, and summarizes the specific applications and modification mechanisms in lithium-sulfur batteries. Then, the characteristics and advantages of MXenes as a composite electrode material for lithium-sulfur batteries are highlighted. Finally, the potential in future commercial applications is summarized.

尽管锂硫电池因其高能量密度被认为是最具潜力的下一代储能系统之一，但中间多硫化锂的溶解和穿梭主要限制了其商业应用。目前，寻找高性能锂硫电池新材料已成为全球研究热点。MXenes 是一种二维无机化合物，包含几层过渡金属碳化物、氮化物或碳氮化物，由于其大的比表面积、良好的导电性以及优异的循环和倍率性能而受到积极研究。本文首先回顾了MXenes在锂硫电池方面的突破，介绍了制备方法和结构特点，并总结了在锂硫电池中的具体应用和改性机理。然后，重点介绍了 MXenes 作为锂硫电池复合电极材料的特点和优势。最后，总结了未来商业应用的潜力。