Publication date: 10th April 2024
The current collector is a crucial component in Solid Oxide Fuel Cells (SOFC) and Solid Oxide Electrolysis Cells (SOEC) stacks, serving to transfer the electricity generated within the cells through interconnects. Its role significantly influences the overall performance of the stack. CuMn oxide, utilized for the current collector, possesses a spinel structure known for its robust electrical conductivity and exceptional durability, attributes that stem from its stable structural composition.To optimize the performance of the current collector, we engaged in a comprehensive selection process for the Cu:Mn composition ratio. This involved analyzing various sets of Area Specific Resistance (ASR) data, each corresponding to different composition ratios of CuMn oxides. Subsequently, we chose the optimal Cu:Mn composition ratio based on the analysis and proceeded to manufacture CuMn foam with this specific ratio.Upon the manufacturing of CuMn foam, we conducted thorough observations and assessments of the ASR data associated with the foam possessing the optimal composition ratio. The results were promising, indicating favorable performance in terms of electrical conductivity and durability. Encouraged by these findings, we moved forward to implement the CuMn foam as a current collector within the SOFC and SOEC stacks. In doing so, we integrated the CuMn foam current collector into the stacks and rigorously evaluated the overall performance of the stacks.
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