Patent ID: 7435500

Claim:
A fuel cell casing comprising: a plurality of fuel cell casing units stacked together, each of the fuel cell casing units including, a base body made of ceramics that has a concavity formed on one surface thereof, the concavity accommodates therein a membrane electrode assembly, the membrane electrode assembly having an ionically conductive membrane, a first electrode formed on one principal surface of the ionically conducting membrane and a second electrode formed on another principal surface of the ionically conducting membrane; a first fluid channel formed so as to extend from a bottom surface of the concavity facing the first electrode of the membrane electrode assembly to an outer surface of the base body; a plurality of first wiring conductors each having its one end disposed on a bottom surface of the concavity facing the first electrode of the membrane electrode assembly, and its another end led to the outer surface of the base body; a lid body mounted on the one surface of the base body near the concavity so as to cover the concavity, for sealing the concavity hermetically; a second fluid channel formed so as to extend from one surface of the lid body facing the second electrode of the membrane electrode assembly to an outer surface of the lid body; and a plurality of second wiring conductors each having its one end disposed on one surface of the lid body facing the second electrode of the membrane electrode assembly, and its another end led to the outer surface of the lid body; and one conducting member disposed between the plurality of first wiring conductors of one fuel cell casing unit and the plurality of second wiring conductors of another fuel cell casing unit, the plurality of first wiring conductors of one fuel cell casing unit being commonly connected to the one conducting member, and the plurality of second wiring conductors of another fuel cell casing unit being commonly connected to the one conducting member, wherein each of the fuel cell casing units has a convexity which is formed on an end portion of a side surface thereof which end portion is on an adjacent cell casing unit side, and the fuel cell casing units adjacent to each other are bonded to each other at their convexities.