Hereby, the porous LPSCl can be considered as a two-phase system consisting of Argon filled pores and solid electrolyte. Assuming 𝜅 LPSCl = 0.66 W m -1 K -1 for the electrolyte and 0.017 W m -1 K -1 as thermal conductivity of argon filled pores as inputs for the resistor network model, effective thermal conductivities of porous LPSCl were simulated and are shown in.