Fig. 2: Crystal structures of promising solid-state potassium electrolytes.
From: Solid-state inorganic electrolytes for next generation potassium batteries
a K-β”-Al2O3, b K2Fe4O7, c K3SbS4, d KSi2P3 with K+ diffusion along the ab-plane for K-β”-Al2O3, along channels for K2Fe4O7 (along the b-axis) and K3SbS4 (along the c-axis) and the 3D ionic conductor KSi2P3. This figure was drawn using the program Diamond Version 5.0.0.
