(PhMgCl)2-AlCl3在混合醚溶剂中的电化学性能研究

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(PhMgCl)2-AlCl3在混合醚溶剂中的电化学性能研究

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References):[1] BesenhardJO,WinterM.Advancesinbatterytechnolo

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[2] GregoryTD,HoffmanRJ,WintertonRC.Development

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depositionfromGrignardsolutions[J].JournalofAppliedElectrochemistry,1997,27(2):221225.[7] LiebenowC,YangZ,LobitzP.Theelectrodepositionof

magnesiumusingsolutionsoforganomagnesiumhalides,amidomagnesiumhalidesandmagnesiumorganoborates[J].ElectrochemistryCommunications,2000,2(9):641645.

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effectofGrignardreagentsontheirelectrochemicalbehavior[J].ElectrochemistryCommunications,2010,12

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(PhMgCl)2-AlCl3在混合醚溶剂中的电化学性能研究

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ElectrochemicalCharacterizationof(PhMgCl)AlClMixed23/

EtherElectrolytes

WANGFeifei,GUOYongsheng,YANGJun,NULIYanna,WANGJiulin

(SchoolofChemistryandChemicalEngineering,ShanghaiJiaoTongUniversity,Shanghai200240,China)

Abstract:The(PhMgCl)AlClaltswerepreparedandtheelectrochemicalpropertiesof(PhMgCl)AlCl23s23

electrolytescontainingdimethoxyethane(DME)+THF,Diglyme(DG)+THFandTetraglyme(TG)+THFsolventswithdifferentproportionsonvariousmetalelectrodeswerestudied.Comparedwith(PhMgCl)AlCl23/

-3:THF,the(PhMgCl)AlClDG+THF(32)solventsshowedhighionicconductivityof1.605×10S·23/

cm-1,goodreversibleMgdepositionbehaviorandanodicantioxidationperformancewithanelectrochemicalwindowwiderthan2.8V.Inaddition,theDG+THFmixedsolventcouldgreatlylowerthesaturatedvaporpressurebyreducingfrom23.46kPato9.41kPa,whichsuppressesvolatilizationoftheelectrolyteandimprovestheoverallsafetyofrechargeablebattery.AmongPt,Ni,CuandAlelectrodes,Ptoffersthebestelectrochemicalproperties,whileAltheworst.

Keywords:electrolytesolution;vaporpressure;reversibleMgdeposition;rechargeablemagnesiumbattery

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