Tubular SOFC under Redox Cycling Degradation

This dataset contains experimental measurements collected from solid oxide fuel cells (SOFCs) undergoing Redox cycling degradation tests. We fabricated eight cells with nearly identical initial performance and generated eight corresponding Redox cycling datasets, covering the entire operational lifespan—from the beginning to the end of life—of each cell. The cell designs, formulations, and experimental setups were fully developed by the University of Alberta. Each dataset corresponds to an individual SOFC tested under varying Redox cycling severity and operating conditions, as detailed in the paper: "State-of-Health Forecasting of Solid Oxide Fuel Cells Using Physics-informed Temporal Graph Convolutional Network". Each dataset includes: (1) Electrochemical Impedance Spectroscopy (EIS): Frequency-dependent impedance measurements captured at intervals throughout the cell lifetime (labeled as EIS1, EIS2, ...). (2) Current-Voltage (IV) Curves: Performance characterization curves recorded concurrently with each EIS measurement (labeled as IV1, IV2, ...). (3) Transient Dynamics Data (Dyn): Time-series data reflecting current density variations during Redox cycles occurring between successive EIS and IV measurements (labeled as Dyn1, Dyn2, ...). Each SOFC dataset begins with initial EIS and IV curves (EIS1, IV1) to establish baseline performance. Subsequently, the cell undergoes Redox cycling, and after each cycle, performance is reassessed via additional EIS and IV measurements. For each dataset containing m performance assessments (EIS and IV), there are (m–1) corresponding transient operation data files.