Effect of Cathode Contacting on Anode Su

The contact geometry effect on anode-supported cells (ASC) has been evaluated comparing the use of platinum meshes and Crofer 22 APU bipolar plates as current collectors. This study aims to assess the enhancement of current distribution at the cathode through the application of a La0.6Sr0.4Co0.2Fe0.8O3 (LSCF) paste between the electrode and the current collector. To investigate the polarization effects on cell performances, cells were electrically loaded for 100 hours, employing current-voltage curves and electrochemical impedance spectroscopy as primary methodologies. Post-experiment analyses were also conducted to corroborate the electrochemical observations. The findings indicate that the contacting layer plays a significant role in reducing ohmic losses at the interface between the electrode and interconnect, thereby influencing overall system performance in terms of power output. Furthermore, it was shown that varying the contacting solutions directly affects the polarization losses, which are vital for optimizing cell performance under operational conditions. These results stress the importance of structural solutions in mitigating contact-related issues, fostering better current distribution over electrodes. The results provide insights crucial for the advancement of efficient stacked solid oxide fuel cells in energy applications.