Lithium transference number measurements and complex abilities in anion trapping triphenyloborane-poly(ethylene oxide) dimethyl ether-lithium trifluoromethanesulfonate composite electrolyte

被引：17

作者：

Ciosek, M. ^{[1
]}

Marcinek, M. ^{[1
]}

Zukowska, G. ^{[1
]}

Wieczorek, W. ^{[1
]}

机构：

[1] Warsaw Univ Technol, Fac Chem Technol, PL-00664 Warsaw, Poland

来源：

ELECTROCHIMICA ACTA | 2009年 / 54卷 / 19期

关键词：

Composite polymer electrolyte; Anion trapping; Transference numbers; MICROWAVE DIELECTRIC-RELAXATION; ION-PAIR DISSOCIATION; POLYMER ELECTROLYTES; ELECTRICAL CONDUCTANCE; ULTRASONIC RELAXATION; NONAQUEOUS SOLUTIONS; INFRARED-SPECTRA; SALTS; RAMAN; CONDUCTIVITY;

D O I：

10.1016/j.electacta.2009.03.028

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In this paper we report the combined, positive effect of triphenyloborane (BPh3) additive on conductivity and lithium cation transference numbers in poly(ethylene oxide) dimethyl ether (PEODME)-lithium trifluoromethanesulfonate(LiCF3SO3, LiTf electrolytes. The transport mechanism is discussed on the basis of impedance measurements, restricted diffusion t(+) measurements. ionic association semi-empirical quantitative estimation and spectroscopic studies. A substantial increase in the lithium transference number values in triphenylborane enriched composite electrolytes was observed in comparison with the pure PEODME-LiCF3SO3 electrolyte. This effect is assisted by ionic conductivity enhancement. (C) 2009 Published by Elsevier Ltd.

引用

页码：4487 / 4493

页数：7

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