Abstract: An electrochemical cell structure comprises a conductive base defining a plurality of holes passing through the conductive base and a microporous cellular substrate disposed on the conductive base. In another embodiment, an electrochemical cell structure comprises a conductive base defining a plurality of holes passing through the conductive base, a coarse microporous cellular substrate disposed on the conductive base and a fine microporous cellular substrate disposed on the coarse microporous cellular substrate.

Abstract: A fuel cell stack comprises multiple fuel cell assemblies, wherein each fuel cell assembly includes a fuel cell comprising an anode layer and a cathode layer, and an electrolyte interposed between the anode layer and the cathode layer. The fuel cell assembly further comprises an anode interconnect and a cathode interconnect, wherein the anode interconnect may be firmly attached to the anode layer by means of a bonding agent and a sealing agent used to seal passages on the anode layer of each fuel cell.

Abstract: A fuel cell, comprising a first electrode layer, a second electrode layer and an electrolyte interposed therebetween. The fuel cell further comprises a first electrode interconnect for supporting the first electrode layer. The first electrode interconnect is in intimate contact with the first electrode layer. The fuel cell also comprises a separator plate incorporating a second electrode interconnect for supporting the second electrode layer, which second electrode interconnect is in intimate contact with the second electrode layer, and at least one compliant structure disposed between the first electrode interconnect and the separator plate. In operation, the compliant structure deforms to accommodate motion in the fuel cell.