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时间:2019-07-09
《Double-shelled hollow microspheres of LiMn2O4》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、ViewOnline/JournalHomepage/TableofContentsforthisissueJournalofDynamicArticleLinksC2、oCao,Tie-JunZhu,Hong-MingYuandCheng-YueSunReceived3rdMarch2011,Accepted28thApril2011DOI:10.1039/c1jm10924cDouble-shelledhollowmicrospheresofLiMnOwerepreparedbycapability.17Moreover,thestructuralstrainresultedfromrepeated24Li+ionsinsertion/extractionprocessescouldbebufferedbytheafacileself-t3、emplatemethod.Theinnerandoutershellsoftheinteriorvoidspace,henceimprovingcyclingstability.Louetal.18obtainedmicrospheresarecomposedofnanoparticleswithdiametersrangingbetween200–400nm.Galvanostaticcharge/dischargehavereportedSnO2hollownanospheres,exhibitingahighreversiblechargecapacityof11404、mAhg1andimprovedcyclingperformance.cyclingshowsthatthismaterialdeliversadischargecapacityof19127mAhg1atC/10rateandacapacityretainabilityof80%afterSihollownanospheresreportedbyMaandco-workersalso800cyclesat5Crate,revealingahighreversiblecapacity,superiorexhibitedmuchimprovedcyclinglifeandr5、atecapability.Comparedtothesehollowstructureswithsingleshells,double-shelledcounter-ratecapabilityandexcellentcyclingstabilityunderhighrates.The+partshavesomeparticularadvantages,suchasmorerobustshells,improvedperformanceisattributedtotheshortLiiondiffusionpresentingthesynergisticeffectofth6、etwoshellsintougheningthelengthsinthenanobuildingblocksandthevoidcoreandspacewalls.20Inaddition,ithasbeendemonstratedthattheshell-in-shellbetweentheinnerandoutershellstoaccommodatethevolumestructureexhibitsanenhancedmechanicalstrengthandpreservedexpansion/contractionduringLi+ionsinsertion/e7、xtractionprocesses.permeability.21Double-shellednanocapsulesofVO-based25compositesreportedbyXueandco-workers22exhibittheimprovedratecapabilityandcyclingperformanceasbothcathodeandanodeforLIBs.Maetal.23alsoreportedthatdouble-shelledhollowstruc-Introductio
2、oCao,Tie-JunZhu,Hong-MingYuandCheng-YueSunReceived3rdMarch2011,Accepted28thApril2011DOI:10.1039/c1jm10924cDouble-shelledhollowmicrospheresofLiMnOwerepreparedbycapability.17Moreover,thestructuralstrainresultedfromrepeated24Li+ionsinsertion/extractionprocessescouldbebufferedbytheafacileself-t
3、emplatemethod.Theinnerandoutershellsoftheinteriorvoidspace,henceimprovingcyclingstability.Louetal.18obtainedmicrospheresarecomposedofnanoparticleswithdiametersrangingbetween200–400nm.Galvanostaticcharge/dischargehavereportedSnO2hollownanospheres,exhibitingahighreversiblechargecapacityof1140
4、mAhg1andimprovedcyclingperformance.cyclingshowsthatthismaterialdeliversadischargecapacityof19127mAhg1atC/10rateandacapacityretainabilityof80%afterSihollownanospheresreportedbyMaandco-workersalso800cyclesat5Crate,revealingahighreversiblecapacity,superiorexhibitedmuchimprovedcyclinglifeandr
5、atecapability.Comparedtothesehollowstructureswithsingleshells,double-shelledcounter-ratecapabilityandexcellentcyclingstabilityunderhighrates.The+partshavesomeparticularadvantages,suchasmorerobustshells,improvedperformanceisattributedtotheshortLiiondiffusionpresentingthesynergisticeffectofth
6、etwoshellsintougheningthelengthsinthenanobuildingblocksandthevoidcoreandspacewalls.20Inaddition,ithasbeendemonstratedthattheshell-in-shellbetweentheinnerandoutershellstoaccommodatethevolumestructureexhibitsanenhancedmechanicalstrengthandpreservedexpansion/contractionduringLi+ionsinsertion/e
7、xtractionprocesses.permeability.21Double-shellednanocapsulesofVO-based25compositesreportedbyXueandco-workers22exhibittheimprovedratecapabilityandcyclingperformanceasbothcathodeandanodeforLIBs.Maetal.23alsoreportedthatdouble-shelledhollowstruc-Introductio
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