Ionic liquid-mediated aqueous redox flow batteries for high voltage applications

被引：45

作者：

Chen, Ruiyong ^{[1
]}

Hempelmann, Rolf ^{[1
]}

机构：

[1] Univ Saarland, Joint Electrochem Lab, KIST Europe, D-66123 Saarbrucken, Germany

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2016年 / 70卷

关键词：

Aqueous electrolyte; Electrochemical window; 1-Butyl-3-methylimidazolium chloride; Ionic liquid; Redox flow batteries; ENERGY-STORAGE; ELECTROLYTE; WATER; ACID;

D O I：

10.1016/j.elecom.2016.07.003

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：

Aqueous redox flow batteries with high cell voltages represent a promising approach for low-cost, high safety and high energy density applications. However, water breakdown is a major concern because it limits cell voltage. For the first time, we report the use of a highly concentrated aqueous ionic liquid electrolyte, 1-butyl-3-methylimidazolium chloride (BMImCl)-H2O, in an aqueous flow battery operating with a broad electrochemical stability window of 3 V. The proof-of-concept was demonstrated using 2 V redox couples of metal acetylacetonates and a hybrid Zn/Ce flow battery. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：56 / 59

页数：4

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