| Patent application number | Description | Published |
|---|
| 20080248372 | FUEL CELL CATALYST, METHOD OF PREPARING SAME, AND MEMBRANE-ELECTRODE ASSEMBLY FOR FUEL CELL AND FUEL CELL SYSTEM INCLUDING SAME - 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 Å to about 3.899 Å (or from about 3.862 Å to about 3.880 Å), and the face-centered tetragonal structure has a first lattice constant ranging from about 3.800 Å to about 3.880 Å (or from about 3.810 Å to about 3.870 Å) and a second lattice constant ranging from about 3.700 Å to about 3.810 Å (or from about 3.710 Å to about 3.800 Å). 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. | 10-09-2008 |
| 20100261090 | Cathode catalyst for fuel cell, and membrane-electrode assembly for fuel cell and fuel cell system comprising same - A cathode catalyst for a fuel cell includes Ru, Fe, and A, where A is Se or S. A cathode catalyst may also include a carbon-based material and crystalline M | 10-14-2010 |
| 20100330453 | POLYMER ELECTROLYTE MEMBRANE FOR FUEL CELL SYSTEM AND MANUFACTURING METHOD THEREOF - A polymer electrolyte membrane for a fuel cell has a crystalline fusion enthalpy measured by differential scanning calorimetry (DSC) of about 67.3 J/g or more. Such crystallinity improves dimensional stability, mechanical characteristics, and ion conductivity of the polymer electrolyte membrane. | 12-30-2010 |
| 20110053029 | MEMBRANE ELECTRODE ASSEMBLY FOR FUEL CELL AND FUEL CELL STACK - A membrane electrode assembly for a fuel cell that secures a flow path of a separator while preventing generation of a pin-hole. The membrane electrode assembly includes an electrolyte membrane for a fuel cell, a microporous layer that is disposed at both surfaces of the electrolyte membrane, a backing layer that is disposed on the microporous layer, and a circumferential edge protective layer that is disposed at an circumferential edge of the electrolyte membrane. An end portion of the microporous layer is positioned further inside of the membrane electrode assembly than an end portion of the backing layer. The circumferential edge protective layer is inserted between the backing layer and the electrolyte membrane. | 03-03-2011 |
| 20110195331 | FUEL CELL STACK - A fuel cell stack includes membrane-electrode assemblies and separators that are closely disposed to both sides of the membrane-electrode assembly. Each membrane-electrode assembly includes an electrolyte membrane, an anode electrode that is formed on one surface of the electrolyte membrane, a cathode electrode that is formed on the other surface of the electrolyte membrane, and a protective layer formed at an oxidant inlet region where oxidant is first injected into the respective cathode electrode. | 08-11-2011 |
| 20110223515 | MEMBRANE-ELECTRODE ASSEMBLY FOR FUEL CELL, METHOD OF MANUFACTURING MEMBRANE-ELECTRODE ASSEMBLY FOR FUEL CELL, AND FUEL CELL SYSTEM - A membrane-electrode assembly for a fuel cell is disclosed. The membrane-electrode assembly may include a polymer electrolyte membrane, an adhesive layer disposed on the polymer electrolyte membrane and a catalyst layer formed, as part of the adhesive layer. The polymer electrolyte membrane, the adhesive layer and the catalyst layer may be positioned between a cathode substrate and an anode substrate. The cathode may include a cathode substrate and the anode may include an anode substrate. A method for manufacturing a membrane-electrode assembly and a system incorporating a membrane-electrode assembly are also disclosed. | 09-15-2011 |
| 20110229785 | FUEL CELL STACK AND FUEL CELL SYSTEM HAVING THE SAME - A fuel cell stack includes a plurality of membrane electrode assemblies, each of the membrane electrode assemblies having an electrolyte membrane; an anode on a first side of the electrolyte membrane; and a cathode on a second side of the electrolyte membrane opposite to the first side, wherein the anode and the cathode each comprise a gas diffusion layer divided into at least two areas such that a first area and a second area have different area densities; and a separator between adjacent membrane electrode assemblies. | 09-22-2011 |
| 20110244362 | CATALYST FOR FUEL CELL, MEMBRANE-ELECTRODE ASSEMBLY INCLUDING SAME, AND FUEL CELL SYSTEM INCLUDING SAME - A catalyst for a fuel cell including a carrier and an active metal dispersion that is supported in the carrier is disclosed. The catalyst may have a dispersity (Dp) represented by General Formula 1 and that ranges from between about 0.01 to about 1.0. | 10-06-2011 |
| 20110244363 | ELECTRODE CATALYST FOR FUEL CELL, MEMBRANE-ELECTRODE ASSEMBLY FOR FUEL CELL INCLUDING SAME, AND FUEL CELL SYSTEM INCLUDING SAME - An electrode catalyst for a fuel cell including a carbon-based carrier and an active metal supported in the carrier, for example, an electrode catalyst for a fuel cell includes a carrier and an active metal supported in the carrier, wherein the electrode catalyst has an X value of 95 to 100% in Equation 1. | 10-06-2011 |
