To increase the cost-competitiveness of electrochemical cell technologies, one strategy is to design electrochemical reactors with higher power density. In this perspective, the optimization of the cell components (e.g. electrodes, flow fields, membranes) is essential. In redox flow cells, porous electrodes are performance-defining components affecting the thermodynamics, kinetics, and transport, so improving their efficiency with respect to decreasing pumping power and electrochemical losses across various operating conditions yields to an increase in the overall performance of the redox system .