Vanadium Oxygen Fuel Cell Utilising High Concentration Electrolyte
Copyright policy )Vanadium Oxygen Fuel Cell Utilising High Concentration Electrolyte
A vanadium oxygen fuel cell is a modified form of a conventional vanadium redox flow battery (VRFB) where the positive electrolyte (VO2+/VO2+ couple) is replaced by the oxygen reduction (ORR) process. This potentially allows for a significant improvement in energy density and has the added benefit of overcoming the solubility limits of V (V) at elevated temperatures, while also allowing the vanadium negative electrolyte concentration to increase above 3 M. In this paper, a vanadium oxygen fuel cell with vanadium electrolytes with a concentration of up to 3.6 M is reported with preliminary results presented for different electrodes over a range of current densities. Using precipitation inhibitors, the concentration of vanadium can be increased considerably above the commonly used 2 M limit, leading to improved energy density.
- UNSW Sydney Australia
- Fraunhofer Institute for Chemical Technology Germany
- Fraunhofer Society Germany
anzsrc-for: 4016 Materials Engineering, TK1001-1841, high energy density, anzsrc-for: 4008 Electrical engineering, vanadium-oxygen fuel cell, 540, anzsrc-for: 4014 Manufacturing engineering, 4016 Materials Engineering, 620, oxygen reduction, TP250-261, anzsrc-for: 40 Engineering, Production of electric energy or power. Powerplants. Central stations, Industrial electrochemistry, 7 Affordable and Clean Energy, high concentration vanadium electrolyte, 40 Engineering
anzsrc-for: 4016 Materials Engineering, TK1001-1841, high energy density, anzsrc-for: 4008 Electrical engineering, vanadium-oxygen fuel cell, 540, anzsrc-for: 4014 Manufacturing engineering, 4016 Materials Engineering, 620, oxygen reduction, TP250-261, anzsrc-for: 40 Engineering, Production of electric energy or power. Powerplants. Central stations, Industrial electrochemistry, 7 Affordable and Clean Energy, high concentration vanadium electrolyte, 40 Engineering
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