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High Ion Conducting Composite Polymer Electrolyte Using Polymer Ionic Liquid-functionalized Graphene Molecular Brushes

資料類型：

PDF文件

關(guān)鍵詞：

Polymer ionic liquid Composite polymer electrolyte Graphene

資料大小：

71K

所屬學(xué)科：

分子表征

來(lái)源：

第六屆亞歐研討會(huì)上處理和性能增強(qiáng)聚合物會(huì)議文集（2013.6.2-6 武漢）

簡(jiǎn)介：

Solidpolymerelectrolytes(SPEs)arepotentialsaferalternativestoliquidelectrolytesinLi-ionbatteries,becauseSPEsaresafety,flexibility,andmanufacturabilitythanliquid.Despitetheiradvantagesinsafetyandstabilityofbatteries,SPEsarechallengedbytheirlowconductivity.Theadditionofnano-scalefillersareknowntoimprovenotonlytheionconductivity,butalsothemechanicalstabilityandstrength.Althoughgraphenenanosheetshavebeenusedasfillersforpolymersinpolymerapplications,theyhavenotyetbeenusedinpolymerelectrolytesinLi-ionbatteries.Inthisstudy,weshowhowtofindproperstructuredesignandmorphologytailoringofthepolymer-functionalizedgraphenetooptimizedcompositepolymerelectrolytes(CPEs).TheionictransferconditionsincludingdissociationofLisalt,amorphouscontentandsegmentalmobilityinCPEswereimprovedbyincorporatingpolymerFGandespecialinpolymer-FGcombiningionicliquid(IL)structureandpolymerbrusharchitecture.Suchpolymer-FGhavingPILbrushsignificantlyincreasestheLiionconductivityofPEO/Li+polymerelectrolytemorethan20rdermagnitudeandalmost20timesat300Cand600Cinionconductivity,respectively.Webelievethatembeddingminimalamountofthepolymer-FGnano-fillerswithproperstructureandmorphologycouldleadtothedevelopmentofanewgenerationofCPEswithhighionicconductivityandhighperformanceLi-ionbatteries.

作者：

Y. S. Ye X. L. Xie , John Rick, F. C. Chang, B. J. Hwang

上傳時(shí)間：

2013-07-01 15:14:51

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