This work investigates the electrochemical behavior of an electrolyte-supported SOEC short stack under electrolysis conditions using Electrochemical Impedance Spectroscopy in which four equivalent circuit models were simulated in MATLAB to identify the one that best fits the experimental data. After IV characterization and stabilization, EIS measurements are performed and validated. Results shown best fit was obtained with a circuit composed of a series resistance, two R–CPE branches for anodic and cathodic processes, and a Warburg diffusion element on the cathode side.
Electrochemical Impedance-Based Modeling of an Electrolyte-Supported SOEC Short Stack
Luca Riccio
;Francesca Santoni;Giuseppina Roviello;
2025-01-01
Abstract
This work investigates the electrochemical behavior of an electrolyte-supported SOEC short stack under electrolysis conditions using Electrochemical Impedance Spectroscopy in which four equivalent circuit models were simulated in MATLAB to identify the one that best fits the experimental data. After IV characterization and stabilization, EIS measurements are performed and validated. Results shown best fit was obtained with a circuit composed of a series resistance, two R–CPE branches for anodic and cathodic processes, and a Warburg diffusion element on the cathode side.File in questo prodotto:
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