Internal reforming tubular solid oxide fuel cell stack and manufacturing method therefor

摘要

The present invention provides a large-scale solid oxide fuel cell stack and a method of manufacturing the stack. In the present invention, a segmented cell tube (103a, 103b) is formed in such a way that unit cells connected to each other are formed on a cylindrical or flat tubular porous support (101). A reformer tube (102) is configured such that reforming catalyst (3) is provided in a support (101). The cell tube and the reformer tube are disposed at positions spaced apart from each other such that an air passage is formed on the outer surface of the reformer tube. A cell module (105) is formed by arranging the tubes such that a fuel gas flow passage is formed between the tubes. The solid oxide fuel cell stack is formed by integrating cell modules with each other.

主权项

1. An internal reforming solid oxide fuel cell stack, comprising cell modules integrated with each other, each of the cell modules comprising: a tubular reformer having at least one first opening formed in an outer surface of the tubular reformer, the first opening communicating with an internal channel; and at least one tubular reactor having at least one second opening formed in an outer surface of the tubular reactor, the second opening communicating with an internal channel, with a reaction part formed in the tubular reactor, the reaction part comprising unit cells connected in series to each other, wherein an air passage is formed in an outer surface of the tubular reactor, and the first opening and the second opening are connected to each other so that gas that is reformed by the tubular reformer is drawn into the reactor.