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硫基复合材料的制备与电化学性能研究 Abstract: Sulfur-basedcompositematerialshavebeenwidelyutilizedinvariousenergystoragedevicessuchaslithium-sulfurbatteriesandsupercapacitorsduetotheirhighspecificcapacity,lowcost,andenvironmentalfriendliness.Inthispaper,wereviewtherecentadvancesinthepreparationmethodsandelectrochemicalperformancesofsulfur-basedcompositematerials,includingsulfur-carboncomposites,sulfur-metalcomposites,andsulfur-polymercomposites.Thestructure,morphology,andelectrochemicalpropertiesofthesecompositesarediscussedindetail,providinginsightsintothedesignandoptimizationofsulfur-basedcompositematerialsforfutureenergystorageapplications. Introduction: Withtheincreasingdemandforrenewableenergyandgreentransportation,high-performanceenergystoragedeviceshaveattractedwideattention.Lithium-ionbatteries(LIBs)havebeenwidelyusedinportableelectronicdevicesandelectricvehiclesduetotheirhighenergydensityandlongcyclelife.However,thelimitedresourceoflithiumandthesafetyissuescausedbytheflammabilityoftheorganicelectrolytehavehinderedthefurtherdevelopmentofLIBs.Asanalternative,lithium-sulfurbatteries(LSBs),whichutilizesulfurasthecathodematerial,havereceivedgreatattentionduetotheirhightheoreticalspecificcapacity(1675mAhg-1),lowcost,andenvironmentalfriendliness. However,thepracticalapplicationofLSBsisstillhinderedbysomeissuessuchaslowconductivityofsulfur,poorcyclestability,andthedissolutionofpolysulfides.Toovercometheseissues,variousstrategieshavebeendeveloped,oneofwhichisthepreparationofsulfur-basedcompositematerials.Theincorporationofsulfurintoaconductivematrixcanenhanceitsconductivity,inhibitthedissolutionofpolysulfides,andimprovetheoverallelectrochemicalperformanceofLSBs. Thispaperprovidesanoverviewoftherecentadvancesinthepreparationmethodsandelectrochemicalperformancesofsulfur-basedcompositematerialsforenergystoragedevices. Preparationofsulfur-basedcompositematerials: Sulfur-carboncomposites: Carbonmaterialshavebeenwidelyusedasaconductivematrixforsulfur-basedcompositematerialsduetotheirhighco