Vanadium redox flow battery

The redox flow batteries appear as an appropriate method for safe local stationary storage of electric energy. The function of vanadium redox battery (VRB) is based on reversible oxidation and reduction of vanadium ions that occur in two different electrolytes separated by an ion-exchange membrane.

The main advantage of the VRB system is its independent scalability:

  • Variable capacity (tank volume, ion concentration)
  • Scalable power (number of cells, membrane surface)


The principle of the VRB is depicted on Figure 1.


In our research group we focus on the several aspects of VRB development:

  • Construction of the lab- and pilot-scale units
  • Electrolyte focused studies
  • Bipolar plates modifications
  • Morphology evolution of the bipolar plates during cycling.


Responsible persons:


Related topics:


Juraj Kosek
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+420 220 443 296

University of Chemistry and Technology Prague
Department of Chemical Engineering
Technicka 5
166 28 Prague 6
Czech Republic

University of West Bohemia
New Technologies Research Centre (NTC)
Univerzitní 8
306 14 Pilsen
Czech Republic