期刊
JOURNAL OF POWER SOURCES
卷 330, 期 -, 页码 55-60出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2016.08.107
关键词
Iron-cadmium redox flow battery; Cross-contamination; Cyclic stability; Capital cost; Energy storage
资金
- Research Grants Council of the Hong Kong Special Administrative Region, China [623313]
The redox flow battery (RFB) is one of the most promising large-scale energy storage technologies that offer a potential solution to the intermittency of renewable sources such as wind and solar. The prerequisite for widespread utilization of RFBs is low capital cost. In this work, an iron-cadmium redox flow battery (Fe/Cd RFB) with a premixed iron and cadmium solution is developed and tested. It is demonstrated that the coulombic efficiency and energy efficiency of the Fe/Cd RFB reach 98.7% and 80.2% at 120 mA cm(-2), respectively. The Fe/Cd RFB exhibits stable efficiencies with capacity retention of 99.87% per cycle during the cycle test. Moreover, the Fe/Cd RFB is estimated to have a low capital cost of $108 kWh(-1) for 8-h energy storage. Intrinsically low-cost active materials, high cell performance and excellent capacity retention equip the Fe/Cd RFB to be a promising solution for large-scale energy storage systems. (C) 2016 Elsevier B.V. All rights reserved.
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