It is therefore fundamental to develop a reliable way to obtain the CBD porosity value. This is exactly the goal of the presented work: we propose a strategy for determining the CBD porosity combining simulation and experimental efforts. We also consider different electrode formulations and compression degrees to explore the effects of the CBD porosity on the 𝜏 -𝜀 relationship and use it to compare it with the experimental counterparts. It is important to notice that the CBD structure might depend on the manufacturing method and components. Therefore, the reported values along the paper must be carefully used only in comparable systems and it is encouraged the use of the proposed methodology when attempting to apply it to other electrode chemistries or manufacturing conditions.