| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 429041000 | Having electrolyte matrix or barrier layer | 19 |
| 20080199762 | Platinum Alloy Catalyst - A platinum alloy catalyst can be used as a fuel cell catalyst. The platinum alloy is a PtAuX alloy wherein X is one or more metals chosen from the group consisting of transition metals, and wherein the alloy contains 40-97% Pt, 1-40% Au and 2-20% X. Electrodes, catalysed membranes and membrane electrode assemblies comprising the catalyst are also disclosed. | 08-21-2008 |
| 20080233465 | CATALYST, METHOD FOR PRODUCING CATALYST, MEMBRANE ELECTRODE ASSEMBLY, AND FUEL CELL - A catalyst is provided and includes fine catalyst particles of a composition represented by formula (1): Pt | 09-25-2008 |
| 20080274392 | Method and Apparatus for Producing Catalyst Layer for Fuel Cell - A method for manufacturing a catalyst layer for a fuel cell support for a catalyst layer comprises the steps of vapor-growing a carbonaceous porous material having a nano-size structure, such as carbon nanowalls (CNWs), and supporting and dispersing a catalyst component and/or an electrolyte component on the support for a catalyst layer. The method simplifies the process for manufacturing an electrode layer for fuel cells and improves the dispersibility of the catalyst component and the electrolyte, whereby the generation efficiency of a fuel cell can be improved. | 11-06-2008 |
| 20080274393 | HYDROGEL BARRIER FOR FUEL CELLS - A fuel cell includes an anode including an anode catalyst, a cathode, a channel that is contiguous with the anode, and a liquid electrolyte in the channel. The cathode includes a gas diffusion electrode, a cathode catalyst on the gas diffusion electrode, and a hydrogel on the cathode catalyst. The hydrogel is between the anode and the cathode, and includes an aqueous liquid and a polymer. The polymer has an acid capacity less than 0.8 meq/g and/or has no sulfonic acid groups covalently bound to the polymer. A method of generating electricity includes flowing a liquid electrolyte through the channel, oxidizing a fuel at the anode, and reducing a gaseous oxidant at the cathode. | 11-06-2008 |
| 20080292943 | Polymer Dispersion and Electrocatalyst Ink - A polymer dispersion comprising one or more proton-conducting polymer materials in a liquid medium, and an electrocatalyst ink comprising one or more electrocatalyst materials and one or more proton-conducting polymer materials in a liquid medium are disclosed. The polymer dispersion and the electrocatalyst ink further comprise a protic acid. Electrocatalyst layers, gas diffusion electrodes, catalysed membranes and membrane electrode assemblies prepared using the dispersion and/or the ink are also disclosed. | 11-27-2008 |
| 20080311462 | Membrane Electrode Assembly, Method for Producing the Same and Polymer Electrolyte Fuel Cell - In a conventional polymer membrane electrode assembly, particularly when operated for a long period of time, a portion of the polymer electrolyte membrane to be in contact with the gas diffusion layer has suffered significant degradation. In order to address this, in a membrane electrode assembly including a hydrogen ion conductive polymer electrolyte membrane, a pair of catalyst layers arranged on both surfaces of the polymer electrolyte membrane, and a pair of gas diffusion layers, each including a fibrous substrate, arranged on the outer surfaces of the catalyst layers, a thickness T | 12-18-2008 |
| 20080311463 | MEMBRANE ELECTRODE ASSEMBLY WITH MULTILAYERED CATHODE ELECTRODE FOR USING IN FUEL CELL SYSTEM - A membrane electrode assembly in a fuel cell system includes a cathode electrode that includes a support layer; a catalyst layer; and a first carbon layer and second carbon layer between the support layer and the catalyst layer, the first carbon layer having a relatively higher porosity and the second carbon layer having a relatively lower porosity. Therefore, the membrane electrode assembly maintains good ion conductivity in the polymer electrolyte membrane by suppressing the movement of water molecules from the polymer electrolyte membrane to the cathode electrode using a water pressure between two carbon layers having different porosity. Also, a flooding phenomenon in the cathode electrode is prevented, thereby maintaining the smooth movement of the oxidizing agent in the cathode. | 12-18-2008 |
| 20090011323 | Solid Oxide Electrochemical Devices Having an Improved Electrode - An electrode with improved resistance to Cr poisoning comprising A | 01-08-2009 |
| 20090042091 | Supported catalyst layers for direct oxidation fuel cells - A method of fabricating a supported catalyst layer for use in a fuel cell electrode, comprises sequential steps of: combining a fluid ink including a supported catalyst comprising at least one precious metal or alloy supported on particles of a support material, and a solution of at least one ionomeric polymer material, with at least one pore-forming material; forming a layer of the combined ink on a surface of a sheet of support material; hot pressing the layer; and treating the hot-pressed layer to remove pore-forming material to form a supported catalyst layer. | 02-12-2009 |
| 20090042092 | Electrode for Alkali Fuel Cell and Method for Making a Fuel Cell Including at Least One Step of Making Such an Electrode - An electrode for an alkali fuel cell comprises an active layer formed by a bilayer or by a stack of a plurality of bilayers. Each bilayer is composed of a catalytic layer comprising catalyst particles of nanometric size and of a porous layer comprising two opposite faces one of which is in contact with the catalytic layer. The porous layer is made from a porous composite material comprising a hydroxide ion conducting polymer matrix in which a metallic lattice is formed constituting a plurality of electronically conducting paths connecting the two opposite faces of the porous layer. Advantageously, fabrication of such an electrode is obtained by successively performing vacuum deposition of the catalyst particles and vacuum co-deposition of the hydroxide ion conducting polymer and of the metal on a free surface of a support. | 02-12-2009 |
| 20090104509 | Carrier for fuel cell, and catalyst, membrane-electrode assembly, and fuel cell system including the same - The present invention provides a carrier for a fuel cell including a cryogel-type carbon. A catalyst of the fuel cell includes the cryogel-type carbon and an active material. One of an anode and cathode of the fuel cell has the catalyst including cryogel-type carbon. The carrier for a fuel cell has excellent porosity, specific surface area, and density characteristics, and thus is capable of improving catalyst activity due to excellent catalyst-supporting efficiency, and thereby cell performance. | 04-23-2009 |
| 20090117449 | Mixed Feed Direct Methanol Fuel Cell Modified By Semipermeable Membrane For Catalyst Layer - Electrodes are used in fuel cells for generating electricity from a mixed feed, where the mixed feed comprises a fuel portion and an oxidation portion. Fuel cells incorporating the electrodes and a method of fabricating the fuel cells are described. In some embodiments, the electrodes comprise a barrier layer ( | 05-07-2009 |
| 20090142648 | Thin film glass composite catalyst electrode - The present disclosure relates to a glass composite catalyst electrode comprising a glass matrix and metal particles incorporated into the glass matrix. The present disclosure also relates to a method for composing a glass composite catalyst electrode. A glass composite catalyst electrode is a porous homogeneous structure with an approximately uniform distribution of metal particles. The metal particles are operable to catalyze reactions in the fuel cell. Conductive material, which may also be operable to catalyze reactions in the fuel cell, may be deposited on the glass composite catalyst electrode in order to increase the electrical conductivity of the glass composite catalyst electrode and to increase the electrochemically active area of the glass composite catalyst electrode. | 06-04-2009 |
| 20090148752 | DIRECT OXIDATION FUEL CELL - A direct oxidation fuel cell of the invention includes at least one unit cell, the unit cell including a membrane-electrode assembly including an electrolyte membrane and an anode and a cathode sandwiching the electrolyte membrane, an anode-side separator being in contact with the anode, and a cathode-side separator being in contact with the cathode. The anode includes an anode catalyst layer and an anode diffusion layer, the anode catalyst layer containing an anode catalyst. The cathode includes a cathode catalyst layer and a cathode diffusion layer, the cathode catalyst layer containing a cathode catalyst. The anode-side separator has a fuel flow channel for supplying fuel to the anode. A portion of the cathode catalyst layer facing the upstream of the fuel flow channel has an effective reaction area per unit area larger than that of a portion of the cathode catalyst layer facing the downstream of the fuel flow channel. | 06-11-2009 |
| 20090280393 | Membrane electrode assembly for fuel cell and manufacturing method thereof - A membrane electrode assembly for fuel cell comprises an electrolyte layer and a first electrode structure. The electrolyte layer has a first surface and a second surface. The first electrode structure disposed on the first surface of the electrolyte layer has a patterned microstructure. The patterned microstructure can be applied for widely increasing a contacting area between fuel or oxidant and the reaction layer, thereby not only enhancing efficiency of fuel cell but also greatly lowering usage of catalyst capable of saving manufacturing cost. | 11-12-2009 |
| 20090297923 | SOL-GEL DERIVED HIGH PERFORMANCE CATALYST THIN FILMS FOR SENSORS, OXYGEN SEPARATION DEVICES, AND SOLID OXIDE FUEL CELLS - A method of forming a sol-gel derived catalyst thin film on an electrolyte substrate includes forming a cathode precursor sol and/or composite cathode slurry, depositing the cathode precursor sol or slurry on the electrolyte and drying the deposited film to form a green film, and heating the green film to form a sol-gel derived catalyst thin film. An electrochemical cell such as a solid oxide fuel cell can include the sol-gel derived catalyst thin film. | 12-03-2009 |
| 20100040936 | Zinc/Air Cell - A zinc/air depolarized cell wherein the anode comprises zinc particles, aqueous alkaline electrolyte, and pyrophosphate based (P | 02-18-2010 |
| 20100086830 | Electrolytic Membrane Structure For Fuel Cell and Fuel Cell - A catalyst layer | 04-08-2010 |
| 20100104925 | ELECTRODE STRUCTURE - An electrode structure of a fuel cell for power generation comprises an anodic structure, a cathodic structure, and an ionic exchange membrane disposed between the anodic and cathodic structures. The anodic and cathodic structures respectively are formed by multi-layer structures, to reduce the fuel crossover from the anodic structure to the cathodic structure, to reduce the catalysts applied amount, and to increase an output electrical energy of the fuel cell. The multi-layer structure of the anodic structure comprises a thin platinum alloy black layer, a Pt alloy layer disposed on the carbon material, and a substrate. | 04-29-2010 |
