▣ Redox Flow battery(RFB) As one kind of ESS(Energy Storage System) technologies -
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Independent from its energy capacity, which is only determined by species concentration and volume of electrolyte tank
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Completely discharged for long periods without ill effects
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Safety : Accidentally mixed situation, Easy thermal management, No possible to explode.
▣ Component of RFB Cell
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Electrode : Electrochemical reaction occurs (Red-ox)
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Membrane : Only transport protons
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Manifold : Connect external tank and electrochemical cell
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Bipolar plate : Where the electrolyte flows in cell (Recently)
▣ RFB System
FB component => 10 ~ 20 cell (each 0.1kW/0.1kWh)
=> More than 100 Stack(each 1kW/1kWh) => FB system(MW/MWh)
▣ Governing Equations
Electrochemistry
Fluid Dynamics
- Brinkman Equation
- Nernst-Plank Equation
- Butler-Volmer's Law
- Ohm's Law
- Overpotential
▣ Simulation Results
▲ Velocity Field of RFB Battery Cell
▲ Concentration of Vanadium ion(V3,V5) at RFB Battery Cell