Chouchane et al. later explored computationally how different CBD arrangements influenced the performance at different electrode porosities, demonstrating a non-negligible influence in the ionic and electronic response. Moreover, Kroll et al. experimentally demonstrated that the CBD phase tends to form aggregates that have a major role in the porous network arrangement and for the first time highlighted the importance that the CBD internal structure may have in the ion transport along the electrode. This CBD internal structure affects both how much space the CBD occupies, and thus how much of the void space it takes from the electrode, and how permeable it is to ion diffusion. Though the importance of the inner structure of the CBD network (specifically the CBD porosity) has been acknowledged, in all works it is still assigned an arbitrary value that is usually between 10 % and 50 % , based more on educated guesses rather than experimental determinations. This hinders the fidelity of the electrochemistry simulations, as the CBD porosity can have a substantial impact on the electrode tortuosity factor, which in turn is very decisive on the mass transport processes in the porous network. Throughout this paper, the tortuosity factor, herein denoted 𝜏, will be used as the link between CBD porosity and experimental observables. It should be noted that there is no clear standard in the literature regarding its notation, with some authors using 𝜏 for the geometric tortuosity and others using 𝜏 for the tortuosity factor. Note that the tortuosity factor is the square of the geometric tortuosity.