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Unraveling the viscosity impact on volumetric transfer in redox flow batteries
Song, Yuxi1,2,3; Li, Xiangrong1; Yan, Chuanwei1,2; Tang, Ao1,2
Corresponding AuthorLi, Xiangrong(xrli@imr.ac.cn) ; Tang, Ao(a.tang@imr.ac.cn)
2020-04-30
Source PublicationJOURNAL OF POWER SOURCES
ISSN0378-7753
Volume456Pages:10
AbstractFlow 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.
KeywordFlow batteries Volumetric transfer Electrolyte viscosity Capacity decay
Funding OrganizationNational Natural Science Foundation of China ; Institute of Metal Research, Chinese Academy of Sciences
DOI10.1016/j.jpowsour.2020.228004
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaChemistry ; Electrochemistry ; Energy & Fuels ; Materials Science
WOS SubjectChemistry, Physical ; Electrochemistry ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS IDWOS:000523640600017
PublisherELSEVIER
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/138042
Collection中国科学院金属研究所
Corresponding AuthorLi, Xiangrong; Tang, Ao
Affiliation1.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
Recommended Citation
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.
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