SEPARATION PLATE OF SOLID OXIDE FUEL CELL STACK USING BONDING PROCESS

摘要

The present invention pertains to a separation plate of a stack of solid oxide fuel cells using a bonding process, wherein, when manufacturing a separation plate of a solid oxide fuel cell stack, instead of using a method of respectively processing a fuel path and an air path on both sides of a metal plate surface by mechanical processing, a plurality of thin metal plates are penetrated and formed in a shape of a manifold and a path using an etching or a press processing method and then the processed metal plates are just bonded together in sequence so as to prepare the separation plate, which has the manifold and the path, for the stack of planar solid oxide fuel cells. By this, it is possible to reduce the time and cost required for machining both surfaces of the metal separation plate and improve the electrical contact and the sealing performance of the planar stack separation plate by reducing deformation of the separation plate that is generated by residual stress. In addition, it is easy to obtain uniform processing quality compared to known separation plate manufacturing methods. Also, the present invention is appropriate for large area separation plate production and mass-production of the separation plates.