Lithium-sulfur batteries(LSBs)are considered promising new energy storage systems given their outstanding theoretical energy densities.Nevertheless,issues such as low electrical conductivity and severe volume expansio...Lithium-sulfur batteries(LSBs)are considered promising new energy storage systems given their outstanding theoretical energy densities.Nevertheless,issues such as low electrical conductivity and severe volume expansion,along with the formation of polysulfides during cycling,restrict their practical applications.To overcome these issues,it is necessary to find suitable and effective sulfur host materials.Metal-organic frameworks(MOFs),which are porous crystalline materials in the bourgeoning developmental stages,have demonstrated enormous potential in LSBs owing to their high porosity and tunable porous structure.Herein,we provide a comprehensive overview of MOF-based sulfur-loaded materials and discuss the charge/discharge mechanisms,strategies of enhancing battery performance,sulfur loading methods,and applications in LSBs.An outlook on future directions,prospects,and possible obstacles for the development of these materials is also provided.展开更多
基金supported by the National Natural Science Foundation of China (NSFC-U1904215, and 21671170)Changjiang scholars program of the Ministry of Education (Q2018270)+3 种基金the Top-notch Academic Programs Project of Jiangsu Higher Education Institutions (TAPP)Program for New Century Excel ent Talents of the University in China (NCET-13-0645)the Six Talent Plan (2015-XCL-030)Qinglan Project of Jiangsu and Program for Colleges Natural Science Research in Jiangsu Province (18KJB150036)
文摘Lithium-sulfur batteries(LSBs)are considered promising new energy storage systems given their outstanding theoretical energy densities.Nevertheless,issues such as low electrical conductivity and severe volume expansion,along with the formation of polysulfides during cycling,restrict their practical applications.To overcome these issues,it is necessary to find suitable and effective sulfur host materials.Metal-organic frameworks(MOFs),which are porous crystalline materials in the bourgeoning developmental stages,have demonstrated enormous potential in LSBs owing to their high porosity and tunable porous structure.Herein,we provide a comprehensive overview of MOF-based sulfur-loaded materials and discuss the charge/discharge mechanisms,strategies of enhancing battery performance,sulfur loading methods,and applications in LSBs.An outlook on future directions,prospects,and possible obstacles for the development of these materials is also provided.
