Determination of Transport Number of the Modified LiClO_4- (PEO)_(20) Polymer Electrolyte

Authors

Ruqi Zhou, University of Science and Technology Beijing, Bijing, 100083)Yang Leiling (Beijing Research Institute of Chemical Industry, Bijing, 100013 ;
Qngguo Liu, University of Science and Technology Beijing, Bijing, 100083)Yang Leiling (Beijing Research Institute of Chemical Industry, Bijing, 100013 ;
Weihua Qiu, University of Science and Technology Beijing, Bijing, 100083)Yang Leiling (Beijing Research Institute of Chemical Industry, Bijing, 100013 ;
Yun Zhang, University of Science and Technology Beijing, Bijing, 100083)Yang Leiling (Beijing Research Institute of Chemical Industry, Bijing, 100013 ;
Yuee Zhao, University of Science and Technology Beijing, Bijing, 100083)Yang Leiling (Beijing Research Institute of Chemical Industry, Bijing, 100013 ;

Abstract

In this work a combination method of A. C. Impedance and chronoamperometry was used to determine the lithium ion transport number of LiClO_4·(PEO)_(20)·(PC)_(12)·(EC)_(12) polymer electrolyte. It is known that lithium is thermodynamically unstable in non-aqueous or polymer electrolytes, leading to the formtion of a film on lithium surface, called as solid electrolyte interphase (SEI). The presence of SEI layer will greatly influence the experimental result of lithium ion transport number. The new method avoid the effect of SEI layer, and can give correct transport number of lithium ion in the electrolyte of DCIO_4·(PED)_(20)·(PC)_(12)·(EC)_(12). The exporimental result indicates that the conducrivity of the electrolyte is 0. 8 ×10￣(-3)s/cm, Li￣+ transport number is 0. 30 at 25℃.

Keywords

Polymer electrolyte, Lithium ion transport numbet

DOI Link

https://doi.org/10.61558/2993-074X.3052

Publication Date

1996-02-28

Online Available Date

1996-02-28

Revised Date

1996-02-28

Received Date

1996-02-28

Recommended Citation

Ruqi Zhou, Qngguo Liu, Weihua Qiu, Yun Zhang, Yuee Zhao. Determination of Transport Number of the Modified LiClO_4- (PEO)_(20) Polymer Electrolyte[J]. Journal of Electrochemistry, 1996 , 2(1): Article 11.
DOI: 10.61558/2993-074X.3052
Available at: https://jelectrochem.xmu.edu.cn/journal/vol2/iss1/11

References

1GauthierM，FauteuxD，VassortG，Be＇langerA，DuvalM，PicouxP，ChabagnoJ－M，MullerD，RigaudP，ArmandMB，DerooD．Assessmentofpolymer－electrolytebetteriesforEVandambienttemperatureapplications．J．Electrochem．Sor．，1985，132：13332HooperAlan．solie－staterechargeablelithiumbatteries．ChemistryandIndustry，1986，17：1983Yangheiling，liuQingguo，FarringtonGregoryC．Solidpolymerelectrolytesforlithiumbatteries．Proceedingsofthe5thInternationalMeetingonLithiumBatteries，Beijing，China，Miy27～June1，1990，1254WatanabeM，NaganoS，SanuiK，OgataN．EstimationofLi￣＋transportnumberinpolymerelectrolytesbythecomibinationofcompleximpedanceandpotentiostaticpolarizationmeasurements．SolidStateIonics，Ionics，1988，91：28～305ArakawaM，YamakiJ．Thecathodicdecompositionofpropylenecarbenateinlithiumbatteries．J．Electroanal．Chem．，1987，219：273