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SEITM911.3A1671-0460201109-0928-03ResearchProgressofElectrolyteandFunctionalAdditivesforLi-ionBatteriesHEZheng-zhen，YANGMing-ming（CollegeofMaterialsandChemistry&ChemicalEngineering,ChengduUniversityofTechnology,SichuanChengdu610059,China）Abstract:Fromtwoaspectsincludingthecompositionofelectrolytesandthesafetyperformance,researchprogressofelectrolytesfortheLi-ionbatterieswasintroduced.Fromcompositionaspectoftheelectrolytes,organicsolventsthathavehighdielectricconstantandcanformeffectiveSEIonthegraphiteelectrodesurfacewerefoundout.Atthesametime,electrolytesthathavegoodconductivityandstableelectrochemicalcharacteristicswerealsofoundout.Aimingattheelectrolytefunctionaladditives,thekeyresearchwastofindoutsuitableadditiveswhichcanimprovesafetyperformanceoftheLi-ionbatteries.Keywords:Li-ionbatter;Electrolyte;Safetyperformance;Additivenn[12][15]/[18][19]︰︰···Table1ThecycleperformanceoftheMCMBelectrodeindifferentelectrolytes······FusajiK,HideoS,AkiraK,etal.Electronicstructuresandelectro-chemicalpropertiesofLiPF6-n(CF3)n[J].JPowerSources,2001,97-98:581-583.SchmidtM,HeiderU,KuehnerA,etal.Lithiumfluoroalkylphos-phates:anewclassofconductingsaltsforelectrolytesforhighener-gylithium-ionbatteries[J].JPowerSources,2001,97-98:557-560.Fusijikita,AkiraKawakami,JinNie,etal.Onthecharacteristicofelectrolyteswithnewlithiumimidesalts[J].JpowerSources,2000,68:307-310.MasashiI,ShiQW,YoshiharuM.Ionicassociationoflithiumsaltsinpropylenecarbonate/1,2-dimethoxyethanemixedsystemsforlithiumbatteries[J].JPowerSources,1993,45(2):229-236.ShinJS,HanCH,JungUH,etal.[J].J.PowerSources,2002,109:47-52.Y.Ein-Eli,S.R.Thomas,V.R.Koch.TheroleofSO2asanadditivetoorganicLi-ionbatteryelectrolytes[J].JournalofTheElectrochemicalSociety,1997,144(4):1159-1165.HerlernG.FashB.k·n-butylamineassolventforlithiumsaltelec-trolytes,structureandpropertiesofconcentratedsolutions[J].ElectrochimicaActa,1996,4(17)1:2753-2759.H.Horiuchi,M.Tsutsumi,WatanabeI.Nonaqueouselectrolyteforlithiumsecondarybattery:JP,10064584A[P].1998.Aral,JuichiHigashiibaraki–gun,Ibaraki–ken.Lithiumsecondarybatteryandliquidelectrolyteforthebattery:EP,0938151A2[P].1999.FengJK,CaoYL,AiXP,etal.·Tri-(4-methoxythphenyl)phos-phate:anewelectrolyteadditivewithbothfire-retardancyandoverchargeprotectionforLi-ionbatteries[J].ElectrochimActa,2008,53(28):8265-8268.