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STACK STRUCTURE FOR SOLID EXIDE FUEL CELL STACK, SOLID OXIDE FUEL CELL STACK, AND PRODUCTION METHOD FOR THE SAME
STACK STRUCTURE FOR SOLID EXIDE FUEL CELL STACK, SOLID OXIDE FUEL CELL STACK, AND PRODUCTION METHOD FOR THE SAME
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机译:固体燃料电池堆的堆垛结构,固体氧化物燃料电池堆的堆垛结构及其生产方法
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摘要
Provided is an SOFC stack having a stack structure which ensures the mechanical strength of the whole SOFCs without depending on the mechanical strength of each unit cell. The stack structure includes unit cells, separators, and seal portions. The unit cells are stacked. Each unit cell has a fuel electrode layer having a fuel electrode and an air electrode layer having an air electrode. The fuel electrodes of each unit cell are so disposed as to face each other across the sold electrolyte. The separators are disposed between the unit cells and separate the unit cells. The seal portions are provided in the fuel electrode layers and the air electrode layers, are equivalent to the separators or the solid electrolyte at least in the thermal expansion/contraction characteristic, and have nonporous parts integrated with the peripheries of the fuel electrode or the periphery of the air electrode and with the adjacent separator and solid electrolyte. A stream of fuel gas and a stream of air gas are supplied to the fuel electrode and the air electrode respectively.
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