Fuel cell device

摘要

A fuel cell device comprises at least one fuel cell unit. The fuel cell unit includes a cell plate, a separator plate and fixing part. The cell plate includes a metal base and a fuel cell supported on the metal base. The separator plate faces the cell plate, the separator plate includes a flat body and an extension at least partly extending from a peripheral edge of the body. The extension includes a side wall extending from the edge of the body toward the cell plate and a joint extending from a tip of the side wall in a diametrical direction and joined to the metal base. The fixing part fixes a central part of the cell plate to a central part of the separator plate. An interior angle formed at the edge of the body of the separator plate of a unit is dependent on a position of the unit in the stack.