Vrb Energy
The VRB Energy Storage System (VRB-ESS) is an electrical energy storage system based on the patented vanadium-based redox regenerative fuel cell that converts chemical energy into electrical energy. Energy is stored chemically in different ionic forms of vanadium in a dilute sulphuric acid electrolyte. The electrolyte is pumped from separate plastic storage tanks into flow cells across a proton exchange membrane (PEM) where one form of electrolyte is electrochemically oxidized and the other is electrochemically reduced. This creates a current that is collected by electrodes and made available to an external circuit. The reaction is reversible allowing the battery to be charged, discharged and recharged.
The principle of the VRB is shown in more detail in Figure 1 - it consists of two electrolyte tanks, containing active vanadium species in different oxidation states (catholyte: V(IV)/V(V) redox couple, anolyte: V(II)/(III) redox couple). These energy-bearing liquids are......
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Vrb Energy
VRB Energy. The VRB Energy Storage System (VRB-ESS) is an electrical energy
storage system based on the patented vanadium-based redox ...
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