Patent ID: 6770395
Filing Date: 2004-08-03
Classification: H01M,Y02E

Abstract:
An interconnect for series connecting an anode surface of a planar fuel cell to a cathode surface of an adjacent planar fuel cell, the interconnect comprising:a first and second border piece, each border piece comprising metal and being generally flat and shaped with an internal cutout shaped such that there is an internal cavity with wide margins on opposing sides of the cavity, within each margin being holes, the holes for the first border piece for the passage of reducing gas, and the holes for the second border piece for the passage of oxidizing gas; an interconnect foil comprising an electrically conducting material with holes for reducing gas passage and holes for oxidizing gas passage, the interconnect foil constructed and disposed between the first and second border pieces, such that reducing gas passage holes of the interconnect foil are in registration with the reducing gas passage holes of the first border piece and the oxidizing gas passage holes of the interconnect foil are in registration with the oxidizing gas passage holes of the second border piece, such that the reducing gas passage holes of the interconnect foil allow passage of reducing gas into and out of the cavity of the second border piece, and the oxidizing gas passage holes of the interconnect foil allow passage of oxidizing gas into and out of the cavity of the first border piece a first and a second metallic wire gauze disposed respectively in the cavities of the first and second border pieces such that the first wire gauze provides electrical continuity between an anode cell surface and the surface of the interconnect foil and the second wire gauze provides electrical continuity between an cathode cell surface and the surface of the interconnect foil when the interconnect is in a connecting relationship between the fuel cells.