Fig. 3: Electrical transport in composite electrodes.
From: Using resistor network models to predict the transport properties of solid-state battery composites
a Schematic setups used to ensure ion-blocking and electron-blocking measurement conditions respectively together with transmission line models (TLM) used to evaluate impedance data. b Electrochemical impedance spectroscopy data (circles) measured under ion- and electron-blocking conditions are exemplary shown for a NCM83-LPSCl composite with a NCM volume fraction of 40 %. Data colored in grey are not considered during the fit (line). c Direct current (DC) polarization data measured under ion-blocking (circles) and electron-blocking (diamonds) conditions respectively, as well as the corresponding fits (line) are exemplary shown for a NCM83-LPSCl composite with a NCM volume fraction of 40 %. d Resulting effective ionic- and electronic conductivities as a function of NCM volume fraction. Effective electronic conductivities measured via DC polarization (circles) and EIS (squares) are shown in purple, whereas effective ionic conductivities are depicted in green. Each data point corresponds to a single measurement. Effective conductivities from simulations with the resistor network model are shown as dots connected with straight dashed lines as guide to the eye.
