Pore-scale analysis of effects of electrode morphology and electrolyte flow conditions on performance of vanadium redox flow batteries

► We perform pore-scale simulations for different XCT-reconstructed electrode morphologies. ► We predict cell performance for different flow rates. ► Cell voltage saturates at high flow rates when concentration approaches uniformity. ► Fuel starvation is found to have a negative impact on cell voltage. ► We report statistical distributions of local parameters across the 3D porous electrode.