An Analysis of a Back Fed Porous Electrode for the Br2 / Br − Redox Reaction

An experimental analysis of the Formula redox reaction in a porous back fed ruthenium‐coated titanium electrode is described. A mathematical model of the steady‐state process is presented. Nonlinear regression of the model against the experimental data gives physically meaningful parameter estimates; these parameters and the model provide a design equation for the porous electrode current as a function of specific surface area, bulk Formula concentration, average total overpotential, and the Reynolds number. The design equation shows that the back fed electrode could reduce the loss of Formula across the separator and the ohmic loss in a Formula battery.