Fig. 2: Illustration of different types of pores that can be present within porous electrodes and their effects on the tortuosity factor τ and McMullin number NM determination.

The simulated steady-state scalar distributions are shown as well as the normalized flux maps. Case A: microstructure with five different pores types: gray—through pores; blue—dead-end pores for eRDM, that may or may not be available for eSCM, depending on the orientation of the CV; purple—dead-end pores for eRDM that branch from the through pores; green—dead-end pores like Blue but could become through pores if the CV was larger as it extends out the side of the CV; and red—small corner regions having low flux. Case B: microstructure with only through-pores (gray) based on low flux threshold. The microstructure size is 256 × 56 pixels.