This study presents a cathode-supported planar solid oxide fuel cell (SOFC) fabrication made via a single step co-sintering method and investigation of its performance. The materials used are NiO-CGO, CGO and CGO-LSCF for anode, cathode, electrolyte, respectively. Our study shows that increasing the cell size has a detrimental effect on cell single step co-sinterability. Increasing cathode thickness and reducing electrolyte thickness led to curvature decrease at the edges, however these adjustments were not enough to achieve a curvature-free cathode-supported cell. Thus, three porous alumina cover plates (total mass of 49.35 g) placed on the top of the cell during sintering were utilized to suppress curvature formation, and as a result, a nearly curvature- free cathode-supported cell was obtained. Performance of the cells were investigated. The results showed that increasing cathode thickness and decreasing electrolyte thickness had negative effects on cell performance despite enhanced single step co-sinterability of the cell. The maximum power density and OCV of the final planar cell (thickness 60-40-800 µm, anode-electrolyte-cathode) were found to be 1.71 mW cm-2 and 0.2 V, respectively, in a fuel rich condition (R:1.6). Additionally, the maximum OCV and power density among the all cells were measured from the cell (thickness 60-40-400 µm, anode-electrolyte-cathode) as 0.56 V and 24.79 mW cm-2, respectively, in a fuel rich condition (R:2.4).
Solid oxide fuel cell (SOFC) Co-sintering Cell manufacturing Cell performance Cell microstructure
Primary Language | English |
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Subjects | Energy, Energy Generation, Conversion and Storage (Excl. Chemical and Electrical) |
Journal Section | Araştırma Makalesi |
Authors | |
Early Pub Date | March 21, 2024 |
Publication Date | March 24, 2024 |
Submission Date | October 31, 2023 |
Acceptance Date | January 15, 2024 |
Published in Issue | Year 2024 |