Solvents and supporting electrolytes for vanadium acetylacetonate flow batteries

被引:66
作者
Shinkle, Aaron A. [1 ,3 ]
Pomaville, Timothy J. [1 ]
Sleightholme, Alice E. S. [1 ]
Thompson, Levi T. [1 ,2 ,3 ]
Monroe, Charles W. [1 ]
机构
[1] Univ Michigan, Dept Chem Engn, Ann Arbor, MI 48109 USA
[2] Univ Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA
[3] Univ Michigan, Hydrogen Energy Technol Lab, Ann Arbor, MI 48109 USA
基金
美国国家科学基金会;
关键词
Single-metal redox flow battery; Non-aqueous electrolytes; Organic solvents; Inorganic coordination complex electrochemistry; Partial molar volume; Energy-storage; LIQUID ELECTROLYTES; LITHIUM-SALTS; IONIC LIQUIDS;
D O I
10.1016/j.jpowsour.2013.10.034
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Properties of supporting electrolytes and solvents were examined for use with vanadium acetylacetonate - a member of the class of metal(beta-diketonate) active species - in non-aqueous redox flow batteries. Twenty supporting-electrolyte/solvent combinations were screened for ionic conductivity and supporting-electrolyte solubility. Hexane, tetrahydrofuran, and dimethylcarbonate solvents did not meet minimal conductivity and solubility criteria for any of the electrolytes used, which included tetraethylammonium tetrafluoroborate, tetrabutylammonium tetrafluoroborate, tetrabutylammonium hexafluorophosphate, and (1-butyl, 3-methyl)imidazolium bis(trifluoromethanesulfonyl)imide. Ionic conductivities and solubilities for solutions of these electrolytes passed screening criteria in acetonitrile and dimethylformamide solvents, in which maximum supporting-electrolyte and active-species solubilities were determined. Active-species electrochemistry was found to be reversible in several solvent/support systems; for some systems the voltammetric signatures of unwanted side reactions were suppressed. Correlations between supporting-solution properties and performance metrics suggest that an optimal solvent for a vanadium acetylacetonate RFB should have a low solvent molar volume for active-species solubility, and a high Hansen polarity for conductivity. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:1299 / 1305
页数:7
相关论文
共 33 条
[21]  
Riddick J.A., 1971, ORGANIC SOLVENTS, V3rd
[23]   Electrode kinetics in non-aqueous vanadium acetylacetonate redox flow batteries [J].
Shinkle, Aaron A. ;
Sleightholme, Alice E. S. ;
Thompson, Levi T. ;
Monroe, Charles W. .
JOURNAL OF APPLIED ELECTROCHEMISTRY, 2011, 41 (10) :1191-1199
[24]   NEW ALL-VANADIUM REDOX FLOW CELL [J].
SKYLLAS-KAZACOS, M ;
RYCHCIK, M ;
ROBINS, RG ;
FANE, AG ;
GREEN, MA .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1986, 133 (05) :1057-1058
[25]   Non-aqueous manganese acetylacetonate electrolyte for redox flow batteries [J].
Sleightholme, Alice E. S. ;
Shinkle, Aaron A. ;
Liu, Qinghua ;
Li, Yongdan ;
Monroe, Charles W. ;
Thompson, Levi T. .
JOURNAL OF POWER SOURCES, 2011, 196 (13) :5742-5745
[26]   MOBILITY AND IONIC ASSOCIATION OF LITHIUM-SALTS IN A PROPYLENE CARBONATE-ETHYL METHYL CARBONATE MIXED-SOLVENT [J].
UE, M ;
MORI, S .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1995, 142 (08) :2577-2581
[27]   ELECTROCHEMICAL PROPERTIES OF ORGANIC LIQUID ELECTROLYTES BASED ON QUATERNARY ONIUM SALTS FOR ELECTRICAL DOUBLE-LAYER CAPACITORS [J].
UE, M ;
IDA, K ;
MORI, S .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1994, 141 (11) :2989-2996
[28]   Nonaqueous liquid electrolytes for lithium-based rechargeable batteries [J].
Xu, K .
CHEMICAL REVIEWS, 2004, 104 (10) :4303-4417
[29]   Characterization of tetraketone ligands for active materials of all-uranium redox flow battery [J].
Yamamura, T ;
Shirasaki, K ;
Shiokawa, Y ;
Nakamura, Y ;
Kim, SY .
JOURNAL OF ALLOYS AND COMPOUNDS, 2004, 374 (1-2) :349-353
[30]   Electrochemical investigation of uranium β-diketonates for all-uranium redox flow battery [J].
Yamamura, T ;
Shiokawa, Y ;
Yamana, H ;
Moriyama, H .
ELECTROCHIMICA ACTA, 2002, 48 (01) :43-50