fig4

Figure 4. Representative 3D microstructures within the 250 dataset with phase fractions labeled. (A) A nonideal microstructure where the SE phase fraction is too low and the particles of both phases are isolated; (B) An ideal highly dense microstructure close to the predicted SE percolation threshold; (C) A microstructure with phase fractions and porosity closest to the experiments. SE: Solid electrolyte; CAM: cathode active material.