Electrochemical impedance spectroscopy (EIS) was employed to characterize the ionic conductivity of pristine, redissolved, and recycled Li3InCl6 and electrode materials. Pellets composed of 100 mg powdered material were uniaxially pressed within a die of 7 mm diameter using a pressure of 2 ton for 10 minutes. The pellets were sputter-coated with a thin layer of gold on both sides to ensure uniform electrical contact over the whole pellet surface.