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Development of High-Performance Current Collectors via Novel Metal Coating for Micro-Tubular Cells

The Ni-cermet anode-supported micro-tubular SOFC based on La0.6Sr0.4Co0.2Fe0.8O3-δ cathode shows high power density below 650°C. Current collection appears to be a major obstacle toward the integration of these single cells in a cube-shaped cell bundle, which can finally lead to a higher volumetric power density. This study aims to develop and modify high-performance current collectors for compact and high-power SOFC bundles. Feasibility of La0.6Sr0.4Co0.2Fe0.8O3-δ based oxides was investigated. The welldispersed Ag particles were introduced to give an enhanced electron path and a lower interfacial resistance.