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A non-aqueous all-copper redox flow battery with highly soluble active species
Li, Yun1; Sniekers, Jeroen2; Malaquias, Joao3; Li, Xianfeng4; Schaltin, Stijn3; Stappers, Linda3; Binnemans, Koen2; Fransaer, Jan3; Vankelecom, Ivo F. J.1
KeywordEnergy Storage Redox Flow Battery Copper Ionic Liquids Liquid Metal Salts
Source PublicationELECTROCHIMICA ACTA
2017-05-10
DOI10.1016/j.electacta.2017.03.039
Volume236Pages:116-121
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectElectrochemistry
WOS Research AreaElectrochemistry
WOS KeywordDEEP EUTECTIC SOLVENTS ; RESEARCH-AND-DEVELOPMENT ; ENERGY-STORAGE ; IONIC LIQUIDS ; SUPPORTING ELECTROLYTES ; MEMBRANES ; PROGRESS ; ELECTRODEPOSITION ; CHALLENGES ; PROSPECTS
AbstractA metal-based redox pair with acetonitrile as ligand [Cu(MeCN)(4)][ Tf2N] is described for use in non-aqueous redox flow battery (RFB). The electrode kinetics of the anode and cathode are studied using cyclic voltammetry. The Cu2+/Cu+ and Cu+/Cu couples in this system yield a cell potential of 1.24V. The diffusion coefficient for [ Cu(MeCN)(4)][Tf2N] in acetonitrile is estimated to be 6.8 x 10(-6) cm(2) s(-1) at room temperature. The copper-acetonitrile complex has a very high solubility of 1.68M in acetonitrile, the most widely used organic solvent for non-aqueous electrochemical applications. Hence, a maximum theoretical energy density around 28 Wh L-1 can be reached with the reported system. The RFB with this electrolyte shows a promising performance, with coulombic efficiencies of 87% and energy efficiencies of 44% (5 mA cm(-2)). (C) 2017 Elsevier Ltd. All rights reserved.
Language英语
WOS IDWOS:000401110200013
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/152290
Collection中国科学院大连化学物理研究所
Affiliation1.Katholieke Univ Leuven, Ctr Surface Chem & Catalysis, Celestijnenlaan 200E,POB 2461, B-3001 Heverlee, Belgium
2.Katholieke Univ Leuven, Dept Chem, Celestijnenlaan 200F,POB 2404, B-3001 Heverlee, Belgium
3.Katholieke Univ Leuven, Dept Mat Engn, Kasteelpk Arenberg 44,POB 2450, B-3001 Heverlee, Belgium
4.Chinese Acad Sci, Div Energy Storage, Dalian Inst Chem Phys, Zhongshan Rd 457, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Li, Yun,Sniekers, Jeroen,Malaquias, Joao,et al. A non-aqueous all-copper redox flow battery with highly soluble active species[J]. ELECTROCHIMICA ACTA,2017,236:116-121.
APA Li, Yun.,Sniekers, Jeroen.,Malaquias, Joao.,Li, Xianfeng.,Schaltin, Stijn.,...&Vankelecom, Ivo F. J..(2017).A non-aqueous all-copper redox flow battery with highly soluble active species.ELECTROCHIMICA ACTA,236,116-121.
MLA Li, Yun,et al."A non-aqueous all-copper redox flow battery with highly soluble active species".ELECTROCHIMICA ACTA 236(2017):116-121.
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