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CORE-SHELL POWDER OF SOLID OXIDE FUEL CELL AND FABRICATION PROCESS THEREOF AND CELL-STACK OF SEGMENTED-IN-SERIES SOLID OXIDE FUEL CELL BY USING THEREOF
CORE-SHELL POWDER OF SOLID OXIDE FUEL CELL AND FABRICATION PROCESS THEREOF AND CELL-STACK OF SEGMENTED-IN-SERIES SOLID OXIDE FUEL CELL BY USING THEREOF
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机译:固体氧化物燃料电池堆芯粉末及其制备方法及分段串联固体氧化物燃料电池堆的制备
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摘要
The present invention relates to a core-shell fuel electrode for a solid oxide fuel cell, a method for manufacturing the same, and a cell-stack for a segmented-in-series solid oxide fuel cell by using the same. The present invention is to manufacture a nano-sized core-shell fuel electrode by using nickel (Ni)-metal (Fe, Co, Cu, etc.) alloy powder as a core and using yttria-stabilized zirconia (YSZ) powders as a shell, with a hydrazine reducing agent and a surface active agent, so as to be used as a fuel electrode for a solid oxide fuel cell (SOFC). The prepared powders have uniform nano-size, form a nanocomposite structure having a continuous network between each other, and suppress volume shrinkage and carbon deposition under the reducing atmosphere, thus the long-term stability, thermal cycle stability, and oxidation-reduction stability are greatly improved. In addition, if liquid slurry is used when coating nano-sized powders, the uniform distribution or thickness formation is impossible due to agglomeration between particles. Therefore, the present invention relates to a method for manufacturing a cell-stack for a segmented-in-series solid oxide fuel cell having a uniform thickness by producing and layering solid core-shell fuel electrodes.
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