Unraveling the viscosity impact on volumetric transfer in redox flow batteries

doi:10.1016/j.jpowsour.2020.228004

IMR OpenIR

	Unraveling the viscosity impact on volumetric transfer in redox flow batteries
	Song, Yuxi 1,2,3; Li, Xiangrong 1; Yan, Chuanwei 1,2; Tang, Ao 1,2
通讯作者	Li, Xiangrong(xrli@imr.ac.cn) ; Tang, Ao(a.tang@imr.ac.cn)
	2020-04-30
发表期刊	JOURNAL OF POWER SOURCES
ISSN	0378-7753
卷号	456 页码:10
摘要	Flow batteries are being increasingly deployed in grid-scale energy storage applications. However, long-term operation of flow batteries still suffers from a different extent of capacity decay. While the effects of ion diffusion and side reactions on capacity degradation have been identified and further minimized by improvement in materials, the mechanism of volumetric transfer and its influence in capacity still receive insufficient attentions that impedes further capacity optimizations for flow batteries. In order to gain an in-depth understanding of volumetric transfer mechanism in flow batteries, six different types of flow batteries are adopted in this study and further classified in accordance with electrolyte viscosities for investigations. Experimental results show that a net volumetric transfer in a conventional flow battery highly depends on viscosity values of the two half-cell electrolytes and is virtually towards the half-cell possessing a smaller electrolyte viscosity. For flow batteries with a mixed electrolyte in both half-cells, moreover, cycling tests further demonstrate a zero net transfer under similar viscosity measurements of both half-cell electrolytes. Unraveling the viscosity impact on volumetric transfer is greatly beneficial to facilitate deeper understandings of transport phenomena in flow batteries, which can contribute to realize long-term flow battery operation with a superior capacity retention.
关键词	Flow batteries Volumetric transfer Electrolyte viscosity Capacity decay
资助者	National Natural Science Foundation of China ; Institute of Metal Research, Chinese Academy of Sciences
DOI	10.1016/j.jpowsour.2020.228004
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[21706266] ; National Natural Science Foundation of China[21805290] ; National Natural Science Foundation of China[21975267] ; Institute of Metal Research, Chinese Academy of Sciences
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science
WOS类目	Chemistry, Physical ; Electrochemistry ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS记录号	WOS:000523640600017
出版者	ELSEVIER
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/138045
专题	中国科学院金属研究所
通讯作者	Li, Xiangrong; Tang, Ao
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang, Peoples R China 3.Univ Sci & Technol China, Nano Sci & Technol Inst, Suzhou, Peoples R China
推荐引用方式 GB/T 7714	Song, Yuxi,Li, Xiangrong,Yan, Chuanwei,et al. Unraveling the viscosity impact on volumetric transfer in redox flow batteries[J]. JOURNAL OF POWER SOURCES,2020,456:10.
APA	Song, Yuxi,Li, Xiangrong,Yan, Chuanwei,&Tang, Ao.(2020).Unraveling the viscosity impact on volumetric transfer in redox flow batteries.JOURNAL OF POWER SOURCES,456,10.
MLA	Song, Yuxi,et al."Unraveling the viscosity impact on volumetric transfer in redox flow batteries".JOURNAL OF POWER SOURCES 456(2020):10.