In Situ Anchoring Ultrafine ZnS Nanodots on 2D MXene Nanosheets for Accelerating Polysulfide Redox and Regulating Li Plating

Abstract Lithium−sulfur (Li−S) battery is a promising energy storage system due to its cost effectiveness and high energy density. However, formation of Li dendrites from Li metal anode and shuttle effect of lithium polysulfides (LiPSs) from S cathode impede its practical application. Herein, ultrafine ZnS nanodots are uniformly grown on 2D MXene nanosheets by a low‐temperature (60 °C) hydrothermal method for the first time. Distinctively, the ZnS nanodot‐decorated MXene nanosheets (ZnS/MXene) can be easily filtered to be a flexible and freestanding film in several minutes. The ZnS/MXene film can be used as a current collector for Li‐metal anode to promote uniform Li deposition due to the superior…

• NN
  National Natural Science Foundation of China

  Awards: 51972198, U21A2077, 21971145
• CP
  China Postdoctoral Science Foundation

  Award: 2022M721913
• NS
  Natural Science Foundation of Shandong Province

  Awards: ZR2021ZD05, ZR2022JQ08, ZR2020JQ19
• SF
  Shenzhen Fundamental Research Program

  Award: JCYJ20190807093405503