Each voxel represents a 2 µm x 2 µm x 2 µm domain and is assigned to either LPSCl or NCM83, leading to a total microstructure edge length of 600 µm (Figure To complement the impedance results, DC polarization experiments were conducted in which the current response to changing applied potentials is evaluated. Depending on whether ionor electron-blocking contacts are employed, the resulting current can be assigned exclusively to the transport of electrons or ions, respectively. As current and the applied potential difference are linked via Ohm's law (Eq. 2), the effective electronic or ionic conductivity can be determined accordingly. An exemplary dataset for 𝜑 NCM = 40 % is shown in Figure . . This simplification does not significantly influence the obtained effective conductivities given that 𝜎 ion,NCM and 𝜎 e,LPSCl are orders of magnitude below 𝜎 ion,LPSCl and 𝜎 e,NCM measured in this work.