Figure presents the impedance data of the electrodes prepared with AM1 and AM2 PSDs derived from different SC slurries (48 %, 50 %, and 52 %) in an ionic blocking symmetric cell setup. The corresponding transmission line model (TLM) presented in Equation 1 enables the extraction of the effective electronic transport properties of the composites. The total cell impedance Z of the ionic blocking cell is influenced by the impedance of the electron-conducting phase ze, the ion-conducting phase zion and the interface impedance between these two phases zint. L represents the thickness of the slurry-based electrode . The electronic impedance ze comprises the electronic bulk resistance re and the in-series and the electronic interfacial impedance zint of the AM particles and the CBD. This interfacial impedance arises from electronic charge transfer across the AM-CBD interface and is modeled by a parallel constant phase element cpedl. The ionic impedance zion is characterized by an ohmic resistance rion. In this system, non-faradaic behavior is assumed since there is no charge transfer between the ionconducting and electron-conducting phases in the symmetric cell. A comparison between the electronic resistance values obtained from impedance analysis and those determined through DC polarization measurements (Figure , SI) confirms the validity of both methodologies.