Affiliation:
1. State Key Laboratory of Low−Carbon Smart Coal−Fired Power Generation and Ultra−Clean Emission China Energy and Technology Research Institute Co., Ltd Nanjing 210023 China
2. School of Advanced Technology Xi'an Jiaotong-Liverpool University Suzhou 215123 China
3. Department of Chemistry School of Science Xi'an Jiaotong-Liverpool University Suzhou 215123 China
Abstract
AbstractThe lithium‐sulfur (Li−S) batteries have a high theoretical specific capacity of 1675 mAh ⋅ g−1 and have become the most promising high‐energy storage system for the next generation batteries technology. However, their applications are hindered by insulated feature and volume expansion of sulfur, as well as the “shuttle effect” of polysulfides. MXenes own metallic conductivity and strong ability of polysulfides adsorption. Besides, their unique two‐dimensional (2D) structure, large specific surface area, abundant functional groups, and adjustability are beneficial to overcome the drawbacks of the sulfur cathode. In this review, different mainstream preparation methods and excellent properties of MXenes are summarized. Significant achievements and recent progress of MXene‐based cathodes and interlayers applied to Li−S cathodes are concluded later. Finally, the challenges, possible solutions and potential applications of MXenes for Li−S batteries are also presented.
Subject
General Chemistry,Catalysis,Organic Chemistry