The reversible solid oxide cell (rSOC) can operate both SOFC and SOEC modes reversibly. It is necessary for developing the rSOC to clear the reversible operation problems by evaluating cell performance of SOFC and SOEC modes. Based on our original performance evaluation method of SOFC which was previously developed, a new performance evaluation method of SOEC which can be adapted under various temperature conditions has been developed in this report. The cell, which was developed as SOFC, performance before and after the CO2 direct electrolysis test (CO2+2e-→CO+O2-) was compared by using the performance evaluation methods of SOEC and SOFC. As a result, the IR loss and the cathode overvoltage increased after the CO2 direct electrolysis test in both SOEC and SOFC modes.
Central Research Institute of electric Power Industry (CRCIEPI) has developed original SOFC performance evaluation method and applied to a wide variety of cells. Based on the SOFC performance evaluation method, a new SOEC performance evaluation method has been developed this time. By this evaluation method, the difference between the open circuit voltage and the cell voltage can be expressed by the internal resistance loss (measured value), the fuel electrode overvoltage, the oxygen electrode overvoltage, and the Nernst loss. In this study, cell performance before and after the CO2 direct electrolysis test was compared by SOFC and SOEC evaluation methods and clarification of cell degradation factor by CO2 direct electrolysis.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.