1,3-Dioxolane, tetrahydrofuran, acetylacetone and dimethyl sulfoxide as solvents for non-aqueous vanadium acetylacetonate redox-flow-batteries

被引：51

作者：

Herr, T. ^{[1
]}

Noack, J. ^{[1
]}

Fischer, P. ^{[1
]}

Tuebke, J. ^{[1
]}

机构：

[1] Fraunhofer Inst Chem Technol, DE-76327 Pfinztal, Germany

来源：

ELECTROCHIMICA ACTA | 2013年 / 113卷

关键词：

Vanadium acetylacetonate; Single-metal redox flow battery; Non-aqueous electrolyte; Energy-storage; Electrochemistry; STATIONARY ELECTRODE POLAROGRAPHY; RESEARCH-AND-DEVELOPMENT; PROGRESS; DIMETHYLSULFOXIDE; COMPLEXES; KINETICS;

D O I：

10.1016/j.electacta.2013.09.055

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

070208 [无线电物理];

摘要：

A non-aqueous vanadium acetylacetonate redox flow battery with different organic solvents and tetrabutylammonium hexafluorophosphate has been investigated. Cyclic voltammograms show three redox couples in 1,3-dioxolane, tetrahydrofuran, acetylacetone and two redox couples in dimethyl sulfoxide. Cell potentials between 2.21 and 2.61V are measured, depending on the solvent used. Impedance Spectroscopy has been used to determine rate limiting step in the non-aqueous redox flow battery. Experiments in a charge-discharge test cell yielded coulombic and energy efficiencies of 85.9-98.5% and 26.6-43.6%, respectively. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：127 / 133

页数：7

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