where σ 0 = H R q 2 a 2 N c(1-c)ν0 exp( ∆Sm For cations, the key attributes include a uniform coordination environment, the presence of three-dimensional ion-conducting channels, a high concentration of mobile ions, and a vacancy-rich structure. Additionally, for anions, the ideal features encompass a highly frustrated structure, anion modifications generating new conduction sites, and rotational anions facilitating enhanced cationic diffusion through a paddle-wheel mechanism. These properties collectively contribute to efficient and rapid ion conduction within the material.