A polyelectrolyte membrane-based vanadium/air redox flow battery

被引：43

作者：

Hosseiny, S. S. ^{[1
]}

Saakes, M.

Wessling, M. ^{[1
]}

机构：

[1] Univ Twente, Enschede, Netherlands

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2011年 / 13卷 / 08期

关键词：

Metal-air battery; Vanadium-air battery; Redox flow battery; Reversible air electrode; Membrane electrode assembly; ENERGY; SYSTEM; OXYGEN; PERMEATION; UTILITY; CELLS;

D O I：

10.1016/j.elecom.2010.11.025

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A vanadium/air redox flow battery (VARFB) was developed using on one side 2 M V(2+)7V(3+) solution in 3 M H(2)SO(4) and H(2)O/O(2) on the other side as redox couples. The vanadium side is identical to the already available all vanadium redox flow battery. Air is used as the second redox couple in order to decrease the weight and increase the weight specific power output. In the VARFB cell, a membrane electrode assembly (MEA) with a new reversible air electrode is applied. In this short communication, we show that the VARFB operated at 80 degrees C has a voltage efficiency of 46% and an energy efficiency of 45.7%. Although somewhat lower than for other redox flow batteries like all vanadium, having 81% voltage efficiency and 73% energy efficiency, the weight specific storage capacity is almost doubled here since in our system only one liquid redox couple has to be stored. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：751 / 754

页数：4

共 18 条

[1] Oxygen and hydrogen permeation properties and water uptake of Nafion(R) 117 membrane and recast film for PEM fuel cell [J].