Two-Dimensional MoS2 for Li-S Batteries: Structural Design and Electronic Modulation.

Two-dimensional molybdenum disulfide (MoS2 ) nanosheets attract great interest for applications in lithium-sulfur (Li-S) batteries, due to their unique physical and chemical properties, which originate from diverse chemical compositions and unique electronic structures. In recent years, many efforts have been devoted to employing MoS2 as a polysulfide immobilizer and catalyst, functional separator, and Li-metal protection for Li-S batteries through structural design and electronic modulation. A fundamental understanding of the interplay between structural features, electronic properties, and advanced electrochemical performance is crucial for providing valuable insights for the development of Li-S batteries. In this regard, recent advances in Li-S batteries with 2D MoS2 materials are summarized from the perspective of structural design and electronic modulation. Finally, future prospects and remaining challenges of MoS2 for Li-S batteries are highlighted.