期刊
NATURE ENERGY
卷 6, 期 6, 页码 582-588出版社
NATURE RESEARCH
DOI: 10.1038/s41560-020-00772-8
关键词
-
资金
- Research Grant Council (RGC) of the Hong Kong Special Administrative Region, China [T23-601/17-R]
Redox flow batteries have great potential for large-scale energy storage, but the lack of consistency in testing methods and assessment metrics makes it challenging to compare their performance. This article discusses RFB assessment methods, performance metrics, decay mechanisms, and proposes testing protocols, reporting practices, and comparison criteria under a general framework of symmetric and asymmetric full RFBs.
Redox flow batteries (RFBs) are a promising technology for large-scale energy storage. Rapid research developments in RFB chemistries, materials and devices have laid critical foundations for cost-effective and long-lasting RFB systems. However, the lack of consistency in testing methods and assessment metrics makes it challenging to compare reported RFBs and evaluate their potential for practical applications. Here we discuss RFB assessment methods and performance metrics in direct relation to their working principles and degradation mechanisms. We first introduce basic cell attributes and performance metrics and describe common misconceptions in testing and performance comparison. We discuss major RFB decay mechanisms and highlight bottlenecks in organic, inorganic and solid-hybrid RFBs. Testing protocols, reporting practices and comparison criteria are proposed under a general framework of symmetric and asymmetric full RFBs. These recommendations can be broadly applied to a wide range of flow battery chemistries to facilitate future benchmarking and RFB development.
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