INVESTIGATION ON THE PERFORMANCE TESTING RELIABILITY BY INTRODUCING CURRENT COLLECTION MODIFICATION FOR THE SOLID OXIDE FUEL CELL.

This paper presents the work on the improvement of modified current collector in a fuel cell testing device with a solid oxide fuel cell (SOFC) consisting of a NiO-YSZ anode as the cell substrate, an 8 µm thick YSZ electrolyte, a screen-printed LSM cathode, and a Pt current collector. The cell exhibits gas-tight structure and the electrode layers are well adhered to the electrolyte. The effects of the current collector setup, operation temperature, and feed flow rates of air and hydrogen on cell performance are investigated. The experimental results demonstrate that the modification of a current collector setup can efficiently improve the contact between the current collector and the electrode, so as to elevate the measurement reliability for the performance data. The maximum output power density (P_max) reaches 206 mW/cm² for the temperature of 800 °C via the modified current collection setup. Compare to the cell without current collection treatment, the power density increases to three times of the measured values. This patented testing apparatus can thus enhance the cell testing reliability and provides identical measurement accuracy. [ABSTRACT FROM AUTHOR]