A metal-supported, SOEC or SOFC fuel cell unit (10) comprising a separator plate (12) and metal support plate (14) with chemistry layers (50) overlie one another to form a repeat unit, at least one plate having flanged perimeter features (18) formed by pressing the plate, the plates being directly adjoined at the flanged perimeter features to form a fluid volume (20) between them and each having at least one fluid port (22), wherein the ports are aligned and communicate with the fluid volume, and at least one of the plates has pressed shaped port features (24) formed around its port extending towards the other plate and including elements spaced from one another to define fluid pathways to enable passage of fluid from the port to the fluid volume. Raised members (120) may receive a gasket (34), act as a hard stop or act as a seal bearing surface.

A metal porous material according to an aspect of the present disclosure is a metal porous material in sheet form that includes a frame having a three-dimensional network configuration, wherein the frame includes an alloy including at least nickel (Ni) and chromium (Cr), the frame 11 is a solid solution with iron (Fe), the frame includes a chromium oxide (Cr.sub.2O.sub.3) layer as an outermost layer and includes a chromium carbide layer located under the chromium oxide layer, the chromium oxide layer has a thickness not less than 0.1 μm and not more than 3 μm, and the chromium carbide layer has a thickness not less than 0.1 μm and not more than 1 μm.

A metal porous material according to an aspect of the present disclosure is a metal porous material in sheet form that includes a frame having a three-dimensional network configuration, wherein the frame includes an alloy including at least nickel (Ni) and chromium (Cr), the frame 11 is a solid solution with iron (Fe), the frame includes a chromium oxide (Cr.sub.2O.sub.3) layer as an outermost layer and includes a chromium carbide layer located under the chromium oxide layer, the chromium oxide layer has a thickness not less than 0.1 μm and not more than 3 μm, and the chromium carbide layer has a thickness not less than 0.1 μm and not more than 1 μm.

A fuel cell system has a cell 1, generating power, with a fuel electrode 1a, an air electrode 1b, and an electrolyte 1c. A water vapor retention member 11 is disposed on a communication path for the fuel gas supplied to the fuel electrode 1a. The retention member 11 retains water vapor, generated by the fuel electrode 1a along with power generation by using the cell 1 and mixes the water vapor with the fuel gas. The retention member 11 has a reforming catalyst that enables the hydrogen, generated by reacting the fuel gas, to be supplied. Exhaust ports 13a exhaust fuel gas toward positions on a surface of the water vapor retention member 11.

The invention relates to an energy supply device with at least one fuel cell and to a method for operating at least one energy supply device with at least one fuel cell, which has at least one anode that can be supplied with a fuel and at least one cathode that can be supplied with ambient air for generating electrical energy. The proposed energy supply device has a converter device.

The invention relates to an energy supply device with at least one fuel cell and to a method for operating at least one energy supply device with at least one fuel cell, which has at least one anode that can be supplied with a fuel and at least one cathode that can be supplied with ambient air for generating electrical energy. The proposed energy supply device has a converter device.

There is disclose a fuel cell system including at least one fuel cell and a duct to supply oxidant to the cathode of the at least one fuel cell. The duct includes at least one sorbent getter adapted to extract volatile species from the oxidant. The sorbent getter includes at least one member of the group consisting of magnesium oxide, calcium oxide and manganese oxide. The sorbent getter provides the advantage of extracting volatile species from the oxidant stream.

There is disclose a fuel cell system including at least one fuel cell and a duct to supply oxidant to the cathode of the at least one fuel cell. The duct includes at least one sorbent getter adapted to extract volatile species from the oxidant. The sorbent getter includes at least one member of the group consisting of magnesium oxide, calcium oxide and manganese oxide. The sorbent getter provides the advantage of extracting volatile species from the oxidant stream.

An electrochemical cell stack having a plurality of electrochemical cells stacked along a longitudinal axis. The electrochemical cells include a membrane electrode assembly having an anode plate and a cathode plate with the membrane electrode assembly interposed therebetween. The electrochemical cells also include an anode plate and a cathode plate with the membrane electrode assembly interposed therebetween, and the anode plate defines a plurality of channels that form an anode flow field facing the anode catalyst layer. The electrochemical cells further include a cathode flow field positioned between the cathode plate and the cathode catalyst layer, wherein the cathode flow field comprises a porous structure.

An electrochemical cell stack having a plurality of electrochemical cells stacked along a longitudinal axis. The electrochemical cells include a membrane electrode assembly having an anode plate and a cathode plate with the membrane electrode assembly interposed therebetween. The electrochemical cells also include an anode plate and a cathode plate with the membrane electrode assembly interposed therebetween, and the anode plate defines a plurality of channels that form an anode flow field facing the anode catalyst layer. The electrochemical cells further include a cathode flow field positioned between the cathode plate and the cathode catalyst layer, wherein the cathode flow field comprises a porous structure.