How do I measure the ionic conductivity of cathode composite with solid electrolyte?
I know I need to measure it using EIS, with the cathode composite, solid electrolyte separator and Li metal as anode under fixed temperature and pressure.
Once I get the impedance results, how do I separate the ionic conductivity of cathode composite from the conductivity of the separator?
Do I need to measure the ionic conductivity of the separator first?
Thank you.