Mixtures of Azepanium Based Ionic Liquids and Propylene Carbonate as High Voltage Electrolytes for Supercapacitors

被引：47

作者：

Pohlmann, S. ^{[1
,2
]}

Olyschlaeger, T. ^{[1
,2
]}

Goodrich, P. ^{[3
]}

Vicente, J. Alvarez ^{[3
]}

Jacquemin, J. ^{[3
]}

Balducci, A. ^{[1
,2
]}

机构：

[1] Univ Munster, MEET Battery Res Ctr, D-48149 Munster, Germany

[2] Univ Munster, Inst Phys Chem, D-48149 Munster, Germany

[3] Queens Univ Belfast, Sch Chem & Chem Engn, QUILL Res Ctr, Belfast BT9 5AG, Antrim, North Ireland

来源：

ELECTROCHIMICA ACTA | 2015年 / 153卷

基金：

英国工程与自然科学研究理事会;

关键词：

Ionic liquids; supercapacitors; mixtures; organic carbonates; electrolyte; DOUBLE-LAYER CAPACITORS; ACTIVATED CARBONS; PERFORMANCE; ENERGY; STORAGE;

D O I：

10.1016/j.electacta.2014.11.189

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

This work provides a study of mixtures of the azepanium-based ionic liquid (IL) N-methyl, N-butyl-azepanium bis[(trifluoromethane) sulfonyl] imide (Azp(14)TFSI) and propylene carbonate (PC) as electrolyte components in electrochemical double layer capacitors (EDLCs). The considered mixtures' properties were then compared to the properties of mixtures of N-butyl, N-methylpyrrolidinium bis [(trifluoromethane) sulfonyl] imide (Pyr(14)TFSI) and PC in terms of viscosity, conductivity and electrochemical behavior. The mixtures' operative potentials were found to be comparable to each other, leading to operative voltages as high as 3.5 V, while retaining the low viscosities and high conductivities of PC based EDLC electrolytes. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：426 / 432

页数：7

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