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1、CHEMSUSCHEMFULLPAPERSDOI:10.1002/cssc.201402862SynthesisofOne-DimensionalCopperSulfideNanorodsasHigh-PerformanceAnodeinLithiumIonBatteries[a][a][a][a][a][b][b]XueLi,XinyiHe,ChunmeiShi,BoLiu,YiyongZhang,ShunqingWu,ZizongZhu,[a]andJinbaoZhao*1Nanorod-likeCuSandCu2Shavebeenfabricated
2、byahydro-fortheCuSelectrodeand260mAhgfortheCu2Selectrode1thermalapproachwithoutusinganysurfactantandtemplate.atthehighcurrentrate.After100cyclesat100mAg,theob-TheelectrochemicalbehaviorofCuSandCu2SnanorodanodestainedCuSandCu2Selectrodesshowdischargecapacitiesof1forlithium-ionbatt
3、eriesrevealthattheyexhibitstablelithium-472and313mAhgwithretentionsof92%and96%,respec-ioninsertion/extractionreversibilityandoutstandingratecapa-tively.Togetherwiththesimplicityoffabricationandgoodbility.Bothoftheelectrodesexhibitexcellentcapacityreten-electrochemicalproperties,CuS
4、andCu2Snanorodsarepromis-tionsirrespectiveoftherateused,evenatahighcurrentden-inganodematerialsforpracticalusethenext-generationlithi-11sityof3200mAg.Morethan370mAhgcanberetainedum-ionbatteries.IntroductionLithiumionbatteries(LIBs)arecurrentlythedominantpowerOne-dimensional(1D)na
5、nostructureshaveattractedacon-sourceforarangeofportableelectronicdevicesduetoitssiderableattentionasitallowsforbetteraccommodationof[1–3]longcyclelifeandhighenergydensity.However,thede-volumechangeduringrepeatedcharge–discharge.Althoughploymentoflarge-scaleLIBsforapplicationinhybri
6、delectricawiderangeofmaterialswithvarioustypesof1Dnanostruc-[14–19]vehicles(HEVs)issignificantlyhinderedbyseveralmajortech-tureshavebeenpreparedbyusingdifferentstrategies,itnologicalbarriers,includinginsufficientcyclelife,poorcharge–remainsachallengetosynthesize1Dnanostructuresofme
7、taldischargeratecapability,andintrinsicallypoorsafetycharacter-sulfideswithisotropiccrystalstructure.[4,5]istics.Therefore,thesearchforelectrodematerialstomeetHerein,nanorod-likeCuSandCu2Shierarchicalstructurestheserequirementsiscriticalforlarge-scalebatterydevelop-havebeenfabricat
8、edbyahydrothermalapproachw
