| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Materials for Energy Conversion and Storage 2025
|
| Presentation Title |
Analysis of Long-term RSOC Electrochemical Performance |
| Author(s) |
Jhon-In Lee, Emily Ghosh, Soumendra N Basu, Srikanth Gopalan, Uday Bhanu Pal |
| On-Site Speaker (Planned) |
Uday Bhanu Pal |
| Abstract Scope |
Reversible solid oxide cells (RSOCs) are known for their ability to convert fuel to energy and vice versa. It is important to identify and mitigate the factors contributing to performance degradation during operation. In this research, Ni-cermet supported RSOCs were electrochemically evaluated employing Potentio/Galvanostat and Electrochemical Impedance Spectroscopy (EIS) under different gas compositions, fuel (H2/H2O) and air (O2/N2), and operating conditions. After analyzing all the overpotential losses as a function of time, it was observed that the parameter which most impacted long-term performance degradation was the fuel electrode exchange current density. Furthermore, gadolinium doped ceria (GDC) was infiltrated into the fuel electrode and the long-term performance stability was correlated with the stability of the exchange current density. The cell microstructure was evaluated using Scanning Electron Microscopy (SEM) to confirm these conclusions. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Energy Conversion and Storage, Characterization, High-Temperature Materials |