A New Fe/V Redox Flow Battery Using a Sulfuric/Chloric Mixed-Acid Supporting Electrolyte

被引：113

作者：

Wang, Wei ^{[1
]}

Nie, Zimin ^{[1
]}

Chen, Baowei ^{[1
]}

Chen, Feng ^{[1
]}

Luo, Qingtao ^{[1
]}

Wei, Xiaoliang ^{[1
]}

Xia, Guan-Guang ^{[1
]}

Skyllas-Kazacos, Maria ^{[2
]}

Li, Liyu ^{[1
]}

Yang, Zhenguo ^{[1
]}

机构：

[1] Pacific NW Natl Lab, Richland, WA 99354 USA

[2] Univ New S Wales, Sch Chem Engn, Sydney, NSW 2052, Australia

来源：

ADVANCED ENERGY MATERIALS | 2012年 / 2卷 / 04期

关键词：

redox flow batteries; hydrochloric acid; sulfuric acid; Fe; V; energy storage; SCALE ENERGY-STORAGE; POSITIVE HALF-CELL; PERFORMANCE; MEMBRANE; COUPLE; SYSTEM;

D O I：

10.1002/aenm.201100527

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A redox flow battery using Fe2+/Fe3+ and V2+/V3+ redox couples in chloric/sulfuric mixed-acid supporting electrolyte is investigated for potential stationary energy storage applications. The Fe/V redox flow cell using mixed reactant solutions operates within a voltage window of 0.51.35 V with a nearly 100% utilization ratio and demonstrates stable cycling over 100 cycles with energy efficiency >80% and no capacity fading at room temperature. A 25% improvement in the discharge energy density of the Fe/V cell is achieved compared with a previously reported Fe/V cell using a pure chloride acid supporting electrolyte. Stable performance is achieved in the temperature range between 0 and 50 degrees C as well as when using a microporous separator as the membrane. The improved electrochemical performance makes the Fe/V redox flow battery a promising option as a stationary energy storage device to enable renewable integration and stabilization of the electric grid.

引用

页码：487 / 493

页数：7

共 32 条

[1] PROPERTIES OF MODIFIED ELECTROLYTE FOR ZINC-BROMINE CELLS [J].