Abstract: A fuel cell stack and a manufacturing method thereof are disclosed. In one embodiment, the fuel cell stack includes: i) a membrane electrode assembly configured of an anode electrode, a cathode electrode, and a polymer electrolyte membrane positioned therebetween, ii) a first plate including a fuel flow channel facing the anode electrode and contacting the anode electrode and iii) a second plate including an oxidant flow channel facing the cathode electrode and contacting the cathode electrode, wherein the membrane electrode assembly, the first bipolar plate, and the second bipolar plate each includes a stack direction display parts, which are arranged in a line. At least one embodiment of the invention is capable of preventing an anode surface and a cathode surface of a part from being reversely stacked in manufacturing a stack type fuel cell.

Abstract: A fuel cell catalyst includes a platinum-iron (Pt—Fe) alloy having an ordered or disordered face-centered cubic structure or face-centered tetragonal structure. The face-centered cubic structure has a lattice constant ranging from about 3.820 ? to about 3.899 ? (or from about 3.862 ? to about 3.880 ?), and the face-centered tetragonal structure has a first lattice constant ranging from about 3.800 ? to about 3.880 ? (or from about 3.810 ? to about 3.870 ?) and a second lattice constant ranging from about 3.700 ? to about 3.810 ? (or from about 3.710 ? to about 3.800 ?). A membrane-electrode assembly can improve cell performance by including the above catalyst having the relatively high activity and selectivity for an oxidant reduction in at least one of an anode or a cathode, and can increase lifespan by inhibiting catalyst poisoning.

Abstract: A fuel cell stack comprises: an electricity generating assembly including electricity generators based on a unit cell; a pair of pressing plates that respectively come in close contact with the outermost surfaces of the electricity generators so as to press the electricity generators; a plurality of connection rods connecting the pressing plates; a fastening member that is screwed to each of the connection rods so as to fasten the pressing plates; and a spacer that is disposed at each of the connection rods between the pressing plates so as to control a fastening pressure exerted by the fastening member.

Abstract: The present invention relates to a catalyst for a fuel cell, a method of preparing the same, and a membrane-electrode assembly for a fuel cell including the same. The catalyst includes a platinum (Pt) nanowire and a carbon-based material supporting the Pt nanowire.

Abstract: The catalyst for a fuel cell of the present invention includes a compound including at least one element selected from the group consisting of silicon, aluminum, and titanium, and a catalytic metal.

Abstract: The present invention includes a catalyst for a fuel cell which contains a transition element core, and a surface layer that contains at least one selected from the group including platinum, a platinum-transition element alloy, and a combination thereof, and that exists on the surface of the core. The catalyst being prepared without a surfactant.