| Entries |
| Document | Title | Date |
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| 20080199761 | Gas Diffusion Layers with Integrated Seals Having Interlocking Features - A membrane electrode assembly (MEA) is provided for a fuel cell and includes gas diffusion layers with integrated seals having interlocking features. The interlocking features of the gas diffusion layers allow the MEA to be constructed with a catalyst coated membrane between two gas diffusion layers with the integrated seals of the gas diffusion layers interlocking the gas diffusion layers together to complete the MEA. | 08-21-2008 |
| 20080206623 | ELECTROCHEMICAL CELL APPARATUS - An electrochemical cell apparatus is disclosed. The electrochemical cell apparatus includes a membrane-electrode assembly (MEA) having a membrane with a first side and a second side opposite the first side, a first electrode in contact with the first side, and a second electrode in contact with the second side. The apparatus further includes a flow field member and a protector member having a boundary partially defined by a first surface facing toward a center of the MEA. The second electrode has a boundary partially defined by a second surface facing away from the center of the MEA. A first distance from the center of the MEA to the first surface is greater than a correspondingly oriented second distance from the center of the MEA to the second surface, thereby defining a gap between the first surface and the second surface. | 08-28-2008 |
| 20080213650 | Microstructures and Methods of Fabrication Thereof - Fuel cells, fuel cell membranes, micro-fuel cells, and methods of fabricating each, are disclosed. One exemplary fuel cell, among others, includes a membrane including a material such as organic conducting materials and inorganic conducting materials, and combinations thereof. The membrane has a thickness of about 0.01 to 10 μm, and has an area resistivity of about 0.1 to 1000 ohms cm | 09-04-2008 |
| 20080220314 | Catalyst layer for fuel cells and fuel cell using the same - A general purpose of the present invention is to improve the ion conductivity of a catalyst layer used in a fuel cell. The catalyst layer includes a catalytic metal, a carbon particle, and an ion exchanger. The catalytic metal is carried on the carbon particle. The ion exchanger includes a first functional group capable of being adsorbed or bound to the catalytic metal, and a second functional group providing the ion conductivity. The ion exchanger is adsorbed or bound to the catalytic metal via the first functional group. The bond between the catalytic metal and the ion exchanger includes a covalent bond, a coordinate bond or an ion bond, etc. | 09-11-2008 |
| 20080241639 | CATALYST FOR POLYMER SOLID ELECTROLYTE FUEL CELL, MEMBRANE ELECTRODE ASSEMBLY, AND FUEL CELL - There is provided a catalyst for a fuel cell, which simultaneously realizes excellent catalytic activity and catalytic stability. The catalyst for a fuel cell comprises a fine particle of a metal represented by formula: | 10-02-2008 |
| 20080241640 | Photocatalytic Deposition of Metals and Compositions Comprising the Same - A photocatalytic metal deposition process and a resulting nanocomposite are described. The nanocomposite includes an electrically conducting carbonaceous material, a photoactive metal oxide and a metal. Metals for deposition include noble metals, metal alloys and other transition metals in which the metal is laid down precisely and in a predetermined fashion on one or more surfaces of a composite. Deposition provides a high performance electrocatalyst for a number of suitable applications. | 10-02-2008 |
| 20080241641 | Membrane electrode assembly for fuel cell and process for manufacturing the same - A membrane electrode assembly for fuel cell includes a membrane, a cathode electrode layer, a cathode gas diffusion layer, an anode electrode layer, and an anode gas diffusion layer. At least one of the cathode electrode layer and the anode electrode layer includes a catalytic layer, and a water-repellent layer. The catalytic layer contains first electrically-conductive fibers and a catalyst, and is disposed on a side of the membrane in the thickness-wise direction of the membrane electrode assembly. The water-repellent layer contains second electrically-conductive fibers and a water repellent, and is disposed more away from the membrane than the catalytic layer is disposed in the thickness-wise direction of the membrane electrode assembly. The first electrically-conductive fibers exhibit a first fibrous average length. The second electrically-conductive fibers exhibit a second fibrous average length. The first average fibrous length is longer than the second average fibrous length. | 10-02-2008 |
| 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 |
| 20080268326 | CATALYST LAYER, MEMBRANE ELECTRODE ASSEMBLY, FUEL CELL HAVING MEMBRANE ELECTRODE ASSEMBLY, METHOD OF PRODUCING CATALYST LAYER, AND METHOD OF PRODUCING MEMBRANE ELECTRODE ASSEMBLY - There are provided a catalyst layer that improves power generation efficiency, a membrane electrode assembly, a fuel cell using the membrane electrode assembly, and a method of producing the membrane electrode assembly. Specifically, there are provided a catalyst layer including at least a first catalyst material and a second catalyst material which is different from the first catalyst material, in which the first catalyst material includes a polyacid having a thiol group, and the first catalyst material and the second catalyst material are bound to each other through a thiol bond; a membrane electrode assembly having the catalyst layer; a fuel cell having the membrane electrode assembly; a method of producing the catalyst layer; and a method of producing the membrane electrode assembly. | 10-30-2008 |
| 20080274391 | Multifunctional tunable metal-phosphate composite electrocatalyst for efficient oxygen reduction and methanol oxidation for applications in fuel cells and electrolysis - A thin-film electrocatalyst of a platinum phosphate composite surface, the platinum surface being entirely oxygen reductive. A tunable platinum phosphate composite surface, the platinum phosphate composite surface being entirely oxygen reductive. A substrate including deposited thereon the thin-film electrocatalyst. A fuel cell including at least one substrate. | 11-06-2008 |
| 20080280189 | Fabrication of Electrode Structures by Thermal Spraying - A method for the rapid production of electrode structures such as Cu-SDC anodes for use in direct oxidation solid oxide fuel cells involves co-depositing a copper-containing material and a ceramic by plasma spraying to form a coating on a substrate. Layers of CuO-SDC have been co-deposited by air plasma spraying, followed by in-situ reduction of the CuO to Cu in the anodes. Materials having catalytic properties, such as cobalt, may also be incorporated in the structures. Controlled compositional or microstructural gradients may be applied to optimize the microstructure and composition of the coatings. | 11-13-2008 |
| 20080286632 | Membrane Electrode Assemblies for Polymer Electrolyte Hydrogen and Direct Methanol Fuel Cells and Methods for Their Production - Membrane Electrode Assemblies for Polymer Electrolyte Hydrogen and Direct Methanol Fuel Cells and Methods for Their Production Electrodes and membrane electrode assemblies for use in fuel cells are provided containing a plurality of layers of catalyst and binder, wherein the first layer ( | 11-20-2008 |
| 20080292942 | MEMBRANE ELECTRODE ASSEMBLY INCLUDING POROUS CATALYST LAYER AND METHOD OF MANUFACTURING THE SAME - A membrane electrode assembly for a fuel cell including a porous catalyst layer, and a method of manufacturing the same in which an electrode includes a catalyst layer formed adjacent to a surface of an electrolyte membrane, and the catalyst layer has a uniform porosity as pluralities of pores are uniformly distributed on the catalyst layer. | 11-27-2008 |
| 20080318116 | GAS DIFFUSION ELECTRODE SUBSTRATE, GAS DIFFUSION ELECTRODE AND PROCESS FOR ITS PROCUTION, AND FUEL CELL - There is provided a gas diffusion electrode substrate comprising a glass nonwoven fabric obtained by adhering a binder containing an acrylic resin and/or vinyl acetate resin to glass fibers. | 12-25-2008 |
| 20090004548 | Electrolyte Membrane, Method for Producing Membrane Electrode Assembly, and Fuel Cell - To eliminate problems such as insufficient adhesion of an electrode and flooding being easily caused in a fuel cell electrolyte membrane having a structure in which a porous substrate is filled with an electrolyte polymer, and to provide a fuel cell electrolyte membrane for which the productivity is high, which is inexpensive, and for which permeation of fuel is suppressed. | 01-01-2009 |
| 20090004549 | HIGH POWER FUEL CELL - A device for highly efficient fuel cell reactions is described. The device comprises a porous electrode and a plurality of suspended nanoparticles diffused within the void volume of the electrode when used within an electrolyte, wherein each chamber contains an electrode and electrolyte with suspended nanoparticles therein. When reactive metal particles are diffused into the electrode structure and suspended in electrolyte by gasses, a fluidized bed is established, allowing for improved power generation. Ideally, this device and system can be used to produce high power output. | 01-01-2009 |
| 20090004550 | In situ fabricated electrochemical device - An electrochemical device, such as a fuel cell, and method of forming it, in which electrodes, such as anode and cathode, are disposed on a semipermeable or permeable membrane having ion conduction channels. Electrocatalyst is deposited on locations on the electrodes limited to and corresponding to the ion conduction channels. In a first embodiment, anode and cathode electrodes sandwich the membrane, a counter electrode is connected to one of the electrodes, electrolyte containing an electrochemical precursor to the electrocatalyst is applied to the other electrode whereby, upon applying current to the counter electrode, electrocatalyst is deposited on locations on the first electrode corresponding to the ion conduction channels. The process is repeated with the counter electrode connected on the other electrode of the cell. In a second embodiment, a combination of a first electrode and a first membrane is assembled as is a combination of a second electrode and a second membrane. A counter electrode and electrolyte containing an electrochemical precursor to the electrocatalyst are separately applied to the first combination, then the second combination whereby, upon applying current to the counter electrodes, electrocatalyst is deposited on locations on the first and second electrodes corresponding to the ion conduction channels. The surfaces of the first and second membranes are joined opposite their respective electrodes to a porous coupling layer to form the electrochemical device. | 01-01-2009 |
| 20090004551 | Sealant Integrated Fuel Cell Components and Methods and Systems for Producing the Same - A fuel cell, having improved sealing against leakage, includes a sealant disposed over the peripheral portions a membrane electrode assembly such that the cured sealant penetrates a gas diffusion layer of the membrane electrode assembly. The sealant is applied through liquid injection molding techniques to form cured sealant composition at the peripheral portions of the membrane electrode assembly. The sealant may be thermally cured at low temperatures, for example 130° C. or less, or may be cured at room temperature through the application of actinic radiation. | 01-01-2009 |
| 20090011319 | Electrode and Membrane Electrode Assembly of Fuel Cell - A fuel cell system according to the present invention allows the fuel cell system to realize the higher output. | 01-08-2009 |
| 20090011320 | CATALYST-SUPPORTING POWDER AND METHOD FOR PRODUCING SAME - The catalyst-supporting powder is in form of an agglomerate formed by agglomeration of a fluorine atom-containing polymer material, a catalyst metal, a cation exchange resin, and a carbon material and the polymer material is contained in the inside of the agglomerate. | 01-08-2009 |
| 20090011321 | FUEL CELL - A fuel cell comprising a cathode catalyst layer, an anode catalyst layer including a conductive perfluoro-binder having a micellar structure formed by outwardly orienting hydrophobic (lipophilic) groups and inwardly orienting hydrophilic groups, and a proton conductive membrane provided between the cathode catalyst layer and the anode catalyst layer. | 01-08-2009 |
| 20090011322 | Catalyst-Coated Membrane, Membrane-Electrode Assembly and Polymer Electrolyte Fuel Cell - A catalyst-coated membrane includes: a first catalyst layer ( | 01-08-2009 |
| 20090029234 | Method of manufacturing membrane electrode assembly, and membrane electrode assembly - A method of manufacturing a membrane electrode assembly for a fuel cell includes: producing a gas diffusion layer powder that is used to form a gas diffusion layer; forming a catalyst layer on an electrolyte membrane; and forming the gas diffusion layer on the catalyst layer by depositing the gas diffusion layer powder on the catalyst layer. | 01-29-2009 |
| 20090035644 | Microfluidic Fuel Cell Electrode System - A fuel cell includes an anode including an anode catalyst, a cathode including a gas diffusion electrode and a cathode catalyst on the gas diffusion electrode, a channel that is contiguous with the anode, and a liquid including a fuel in the channel. The anode is in convective contact with the fuel, and the fuel cell has a fuel efficiency of at least 50%. | 02-05-2009 |
| 20090042089 | Supported Catalyst For Fuel Cell, Method Of Preparing The Same, Electrode For Fuel Cell Including The Supported Catalyst, Membrane Electrode Assembly Including The Electrode, And Fuel Cell Including The Membrane Electrode Assembly - Provided are a supported catalyst for a fuel cell, a method of preparing the same, an electrode for a fuel cell including the supported catalyst, a membrane electrode assembly including the electrode, and a fuel cell including the membrane electrode assembly. Specifically, the supported catalyst for a fuel cell has a layered structure obtained by sequentially depositing a carbonaceous support, metal oxide particles, and catalyst metal. The supported catalyst has excellent electrical activity, excellent durability, and can be easily mass-produced at low cost. The membrane electrode assembly including the supported catalyst and a fuel cell including the membrane electrode assembly each show excellent output density and high performance. | 02-12-2009 |
| 20090042090 | FUEL CELL - The present invention provides a fuel cell comprising: a cathode catalyst layer | 02-12-2009 |
| 20090061284 | CERIA AND STRONTIUM TITANATE BASED ELECTRODES - A ceramic anode structure obtainable by a process comprising the steps of: (a) providing a slurry by dispersing a powder of an electronically conductive phase and by adding a binder to the dispersion, in which said powder is selected from the group consisting of niobium-doped strontium titanate, vanadium-doped strontium titanate, tantalum-doped strontium titanate, and mixtures thereof, (b) sintering the slurry of step (a), (c) providing a precursor solution of ceria, said solution containing a solvent and a surfactant, (d) impregnating the resulting sintered structure of step (b) with the precursor solution of step (c), (e) subjecting the resulting structure of step (d) to calcination, and (f) conducting steps (d)-(e) at least once. | 03-05-2009 |
| 20090061285 | COMPOSITE ELECTRODES - Electrode material obtainable according to a process comprising the steps of: (a) providing a precursor solution or suspension of a first component, said solution or suspension containing a solvent; (b) forming particles of the first component and entrapping said particles within the pore structure of a second component by mixing and subsequently heating, drying or centrifuging a solution or suspension or powder of the second component with the precursor solution or suspension of said first component, in which said second component has a porous structure with average pore diameter of 2 to 1000 nm. | 03-05-2009 |
| 20090061286 | Cathode catalyst for fuel cell, method for preparing the same, membrane-electrode assembly comprising the same, and fuel cell system including the same - The cathode catalyst for a fuel cell includes PdM where M is a metal selected from the group consisting of Mn, Fe, Co, Cu, and combinations thereof. The average distance between the Pd atoms ranges from 2.72 to 2.73 Å, the average distance between the Pd and M atoms ranges from 2.63 to 2.67 Å, and the average distance between the M atoms ranges from 2.63 to 2.67 Å. The cathode catalyst is relatively cheaper but has excellent activity compared with a Pt catalyst. | 03-05-2009 |
| 20090068541 | ELECTRODES CONTAINING OXYGEN EVOLUTION REACTION CATALYSTS - One embodiment of the invention includes a method including providing a cathode catalyst ink comprising a first catalyst, an oxygen evolution reaction catalyst, and a solvent; and depositing the cathode catalyst ink on one of a polymer electrolyte membrane, a gas diffusion medium layer, or a decal backing. | 03-12-2009 |
| 20090068542 | IONIC POLYMER PARTICLE DISPERSION LIQUID AND METHOD FOR PRODUCING THE SAME - Disclosed is an ionic polymer particle dispersion liquid prepared by continuously mixing a poor solvent in which an ionic polymer is poorly soluble, and an ionic polymer solution comprising the ionic polymer dissolved in a good solvent having miscibility with the poor solvent and having readily-solubility to the ionic polymer, to form an ionic polymer particle, the ionic polymer being an aromatic hydrocarbon based polymer. | 03-12-2009 |
| 20090075155 | MEMBRANE ELECTRODE ASSEMBLY FOR FUEL CELL, AND FUEL CELL SYSTEM INCLUDING THE SAME - A membrane-electrode assembly for a fuel cell, which includes an anode and a cathode facing each other; and a polymer electrolyte membrane disposed between the anode and cathode. The cathode includes a first catalyst layer that includes catalyst particles, and a second catalyst layer that includes the catalyst particles and a pore-forming agent. The membrane-electrode assembly efficiently performs mass transfer and release, due to pores in the second catalyst layer. | 03-19-2009 |
| 20090075156 | Porous Electrolessly Deposited Coatings - A new electroless plating approach to generate a porous metallic coating is described in which a metal is electrolessly deposited on a surface. Microparticles in the metal are removed to leave pores in the metal coating. Another method of forming electroless coatings is described in which a blocking ligand is attached to the surface, followed by a second coating step. The invention includes coatings and coated apparatus formed by methods of the invention. The invention also includes catalyst structures comprising a dense substrate and a porous metal adhered to the dense substrate, which is further characterized by one or more of the specified features. | 03-19-2009 |
| 20090081526 | ELECTRODE FOR FUEL CELL AND FUEL CELL SYSTEM INCLUDING SAME - An electrode for a fuel cell and a fuel cell system including the electrode. The electrode includes an electrode substrate including carbon fiber and a hydrophobic polymer fiber, and a catalyst layer on the electrode substrate. As such, the electrode uniformly includes the hydrophobic polymer fiber thereon, and therefore can uniformly release and maintain water generated during operation of the fuel cell, thereby improving fuel cell characteristics. | 03-26-2009 |
| 20090092887 | NANOPARTICLE COATED ELECTRODE AND METHOD OF MANUFACTURE - An electrode comprising a primary and secondary metal nanoparticle coating on a metallic substrate is prepared by dispersing nanoparticles in a solvent and layering them onto the substrate, followed by heating. The enhanced surface area of the electrode due to the catalytic nanoparticles is dramatically enhanced, allowing for increased reaction efficiency. The electrode can be used in one of many different applications; for example, as an electrode in an electrolysis device to generate hydrogen and oxygen, or a fuel cell. | 04-09-2009 |
| 20090098440 | MICROPOROUS LAYER - A component for use in assembling a membrane electrode assembly comprises a microporous layer supported on a transfer substrate, wherein the microporous layer comprises carbon particles and a hydrophobic polymer, and a polymer layer is present on the microporous layer. A process for preparing a component for use in assembling a membrane electrode assembly includes forming the microporous layer on the transfer substrate and applying a polymer layer on the microporous layer. The microporous layer may also be deposited onto a gas diffusion substrate for use in the membrane electrode assembly. | 04-16-2009 |
| 20090104508 | Membrane electrode assembly for fuel cell, preparing method for same, and fuel cell system including same - The membrane-electrode assembly for a fuel cell according to an embodiment includes an anode and a cathode facing each other, and a polymer electrolyte membrane interposed therebetween. At least one of the anode and cathode includes an electrode substrate, a microporous layer disposed on the electrode substrate, and a catalyst layer disposed on the microporous layer. The catalyst layer includes a catalyst and a binder resin, and the binder resin has an average chain length ranging from about 5 to about 30 nm. According to the embodiment, a membrane-electrode assembly can be easily prepared without firing and can be prevented from distorting, improving cell characteristics. | 04-23-2009 |
| 20090111002 | ELECTRODE ASSEMBLY AND METHOD OF MAKING SAME - An assembly and associated method of manufacture are provided in which electrostatic deposition is used to directly apply and/or apply without solvents an electrode to one of an ion-conducting member, a member adapted to hold an ion-conducting member and a gas diffusion layer of the assembly. | 04-30-2009 |
| 20090117447 | PALLADIUM ALLOY CATALYSTS FOR FUEL CELL CATHODES - For the oxygen reduction reaction at the cathode of proton exchange membrane fuel cells, a metal alloy catalyst contains the metals Pd, M1 and M2 where M1 and M2 are different metals selected from Co, Fe, Au, Cr and W (but excluding the combination PdCoAu). Preferred ternary alloys for use as catalysts may be selected from PdCoCr, PdCoW, PdFeCr, PdFeW, PdCrW, PdWAu, PdCrAu, PdCoFe and PdFeAu. Compositional ranges that are specially effective are assessed by a high throughput physical vapour deposition method. Catalysts especially suitable for use in direct methanol fuel cells are identified. | 05-07-2009 |
| 20090117448 | Fuel Cell Electrode Catalyst with Reduced Noble Metal Amount and Solid Polymer Fuel Cell Comprising the Same - An object of the present invention is to reduce the amount of catalytic metal such as Pt in a fuel cell. The present invention provides a fuel cell electrode catalyst comprising a conductive carrier and catalytic metal particles, wherein the CO adsorption amount of the electrode catalyst is at least 30 mL/g·Pt. | 05-07-2009 |
| 20090136826 | SOLID CATALYSTS AND FUEL CELL EMPLOYING THE SOLID CATALYSTS - A solid catalyst having a close-packed structure has basic structural units present in the surface of the solid catalyst, the basic structural units including (i) a triangular lattice constituted of atoms of platinum, ruthenium, and at least one additional element which are disposed at the vertexes in the triangular lattice so that each atom of one of the elements adjoins atoms of the other elements or (ii) a rhombic lattice constituted of atoms of platinum, ruthenium, and at least one additional element which are disposed at the vertexes in the rhombic lattice in an atomic ratio of 1:2:1 so that each ruthenium atom directly adjoins a platinum atom and an atom of the additional element; and a fuel cell includes either of the solid catalyst as an anode-side electrode catalyst. | 05-28-2009 |
| 20090142647 | CARBON FIBER, POROUS SUPPORT-CARBON FIBER COMPOSITE AND METHOD FOR PRODUCING THE SAME AS WELL AS CATALYST STRUCTURE, ELECTRODE FOR SOLID POLYMER FUEL CELL AND SOLID POLYMER FUEL CELL - This invention relates to a method for producing carbon fibers having a sufficiently small fiber diameter, and more particularly to (1) a method for producing carbon fibers, which comprising the steps of jetting a polymer material-containing solution by an electrospinning method to form a deposit layer of a fibrous substance comprising the polymer material and firing the deposit layer of the fibrous substance comprising the polymer material to produce carbon fibers, and (2) a method for producing carbon fibers, which comprising the steps of jetting a carbon black-dispersed and polymer material-containing solution by an electrospinning method to form a deposit layer of a fibrous substance comprising the carbon black-dispersed polymer material and irradiating microwaves to the deposit layer of the fibrous substance to produce carbon fibers. | 06-04-2009 |
| 20090148751 | MEMBRANE ELECTRODE ASSEMBLY FOR FUEL CELL, AND METHOD OF MANUFACTURING THE SAME - A membrane electrode assembly (MEA) for a fuel cell, and a method of making the same, the MEA including: an electrolyte membrane; binder layers including a sulfonated polysulfone-clay nanocomposite, and a tackifier, disposed on opposing sides of the membrane; and electrodes including electrode catalytic layers, disposed on the binder layers. | 06-11-2009 |
| 20090162734 | MANUFACTURING OF FUEL CELL MEMBRANE ELECTRODE ASSEMBLIES INCORPORATING PHOTOCURABLE CATIONIC CROSSLINKABLE RESIN GASKET - A first transport system moves a web comprising a subgasketed CCM layer and an application system applies a crosslinkable resin to at least a subgasketed portion of the subgasketed CCM layer. The crosslinkable resin preferably comprises a photocurable cationic crosslinkable resin. A first curing apparatus subjects an exposed surface of the crosslinkable resin to a photo curing process to initiate curing of the crosslinkable resin. A second transport system moves a GDL into adhering contact with a partially cured exposed surface of the crosslinkable resin of the CCM layer so as to form an MEA layer. A second curing apparatus subjects the GDL, partially cured crosslinkable resin, and CCM layer structure to a thermal curing process to substantially complete curing of the crosslinkable resin. A converting system is configured to receive the MEA layer and produce a plurality of discrete MEAs from the MEA layer. | 06-25-2009 |
| 20090233155 | USING IONIC LIQUIDS - Carbon dioxide or other gases can be separated from gas streams using ionic liquid, such as in an electrochemical cell. For example, a membrane can contain sufficient ionic liquid to reduce ionic current density of at least one of protons and hydroxyl ions, relative to carbon-containing ionic current density. A gas stream containing carbon dioxide can be introduced on a cathode side, while a source of hydrogen gas can be introduced on the anode side of the membrane. Operation of an electrochemical cell with such a membrane can separate the carbon dioxide from the gas stream and provide it at a separate outlet. | 09-17-2009 |
| 20090246600 | Fuel electrode catalyst for fuel cell, electrode/membrane assembly, and fuel cell and fuel cell system provided with the electrode/membrane assembly - A fuel electrode catalyst for fuel cell excellent in CO poisoning resistance, an electrode/membrane assembly using the fuel electrode catalyst for fuel cell, and a fuel cell and a fuel cell system including the electrode/membrane assembly are provided. The fuel electrode catalyst for fuel cell comprises a platinum-ruthenium first alloy catalyst and a second alloy catalyst obtained by partially substituting ruthenium of the platinum-ruthenium first alloy catalyst by a metal lower dissolving potential than ruthenium. The electrode/membrane assembly | 10-01-2009 |
| 20090246601 | PROCESS FOR PREPARING CATALYST MATERIAL - The present invention is intended to provide a catalyst material that supports active species densely, thereby having higher catalytic performance and serviceability as, for example, an electrode for fuel cells. To achieve the above object, the present invention provides a process for preparing a catalyst material, including: an electrochemical polymerization step of electrochemically polymerizing a heteromonocyclic compound so that the surface of a conductive material is coated with polynuclear complex molecules derived from the heteromonocyclic compound; and a metallation step of coordinating a catalytic metal to the coating layer of the polynuclear complex molecules, characterized in that the potential applied in the electrochemical polymerization is 0.8 to 1.5 V. | 10-01-2009 |
| 20090269653 | FUEL CELL - A fuel cell comprising a cathode catalyst layer ( | 10-29-2009 |
| 20090291351 | APPARATUS AND METHOD FOR COATING A PASTE CONTAINING A WATER-REPELLENT SUBSTANCE, AND METHOD FOR MANUFACTURING A FUEL CELL - Making use of the feature that a high polymer is difficult to fiberize when used at below the glass transition point, a pressure-feed device ( | 11-26-2009 |
| 20090325038 | FUEL CELL AND PROCES FOR MANUFACTURING A FUEL CELL - The present invention pertains to a fuel cell with a storage unit ( | 12-31-2009 |
| 20100009240 | STRUCTURAL REINFORCEMENT OF MEMBRANE ELECTRODES - A catalyst ink composition for a fuel cell electrode is provided. The catalyst ink composition includes a plurality of electrically conductive support particles; a catalyst formed from a finely divided precious metal, the catalyst supported by the conductive support particles; an ionomer; at least one solvent; and a reinforcing material configured to bridge and distribute stresses across the electrically conductive support particles of the ink composition upon a drying thereof. An electrode for a fuel cell and a method of fabricating the electrode with the catalyst ink composition are also provided. | 01-14-2010 |
| 20100028755 | Fuel Cell Catalyst Layer, Membrane Electrode Assembly Using the Same and Fuel Cell - One embodiment of the present invention is a fuel cell catalyst layer including sulfonated amorphous carbons, wherein the sulfonated amorphous carbons have a chemical shifts signal indicating carbons of a condensed aromatic 6-membered ring to which sulfonic groups are attached and are not attached respectively in a spectrum of the | 02-04-2010 |
| 20100028756 | Fuel Cell and Catalyst Layer Therefor, and Membrane Electrode Assembly Using the Same - This invention discloses a catalyst layer which is formed at first incorporating sulfonated amorphous carbons and later the sulfonated amorphous carbons are removed. In addition, said sulfonated amorphous carbons show | 02-04-2010 |
| 20100028757 | CERAMIC MATERIAL COMBINATION FOR AN ANODE OF A HIGH-TEMPERATURE FUEL CELL - The invention relates to an anode for a high-temperature fuel cell having an anode substrate and/or a functional anode layer, comprising a porous ceramic structure having a first predominantly electron-conducting phase with the general empirical formula Sr | 02-04-2010 |
| 20100035123 | Low Pt content direct methanol fuel cell anode catalyst: nanophase PtRuNiZr - A method for the preparation of a metallic material having catalytic activity that includes synthesizing a material composition comprising a metal content with a lower Pt content than a binary alloy containing Pt but that displays at least a comparable catalytic activity on a per mole Pt basis as the binary alloy containing Pt; and evaluating a representative sample of the material composition to ensure that the material composition displays a property of at least a comparable catalytic activity on a per mole Pt basis as a representative binary alloy containing Pt. Furthermore, metallic compositions are disclosed that possess substantial resistance to corrosive acids. | 02-11-2010 |
| 20100035124 | HYBRID PARTICLE AND CORE-SHELL ELECTRODE STRUCTURE - A catalyst ink composition for a fuel cell electrode is provided. The catalyst ink composition includes: an ionomer; at least one solvent; a quantity of nanostructured thin film support cores; a catalyst formed from a precious metal, the catalyst coated onto the nanostructured thin film support cores; and a quantity of particles. The particles are configured to provide an electrode porosity that militates against excess water accumulation in the electrode formed from the ink composition upon a drying thereof. An electrode for a fuel cell and a method of fabricating the electrode with the catalyst ink composition are also provided. | 02-11-2010 |
| 20100040935 | FUEL CELL ELEMENT ELECTRODE - An electrode for a fuel cell element including a hydrophobic graphite support layer; a semi-hydrophobic electro-catalyst layer including an electro-catalytically active material in a carbon substrate and a polytretrofluorethylene (PTFE) content having a first concentration; and a hydrophilic electro-catalyst layer including an electro-catalytically active material in a carbon substrate and having a PTFE content having a second concentration that is less than the first concentration. | 02-18-2010 |
| 20100047667 | Gas Diffusion Electrodes, Membrane-Electrode Assemblies and Method for the Production Thereof - A method for forming a mixed metal coating on a gas diffusion medium substantially free of ionomeric components which includes the steps of subjecting an electrically conductive web to a first ion beam having an energy not higher than 500 eV, then to a second beam having an energy of at least 500 eV containing the ions of a first metal, and to at least a third beam having an energy of at least 500 eV containing the ions of a noble metal. The invention also relates to gas diffusion electrodes. | 02-25-2010 |
| 20100047668 | FUEL CELL NANOCATALYST WITH VOLTAGE REVERSAL TOLERANCE - In some embodiments, the present disclosure provides a fuel cell catalyst having a catalyst surface bearing a non-occluding layer of iridium. In some embodiments, the present disclosure provides a fuel cell catalyst comprising a catalyst surface bearing a sub-monolayer of iridium. In some embodiments, the present disclosure provides a fuel cell catalyst comprising a catalyst surface bearing a layer of iridium having a planar equivalent thickness of between 1 and 100 Angstroms. In some embodiments, the fuel cell catalyst comprises nanostructured elements comprising microstructured support whiskers bearing a thin film of nanoscopic catalyst particles. The layer of iridium typically has a planar equivalent thickness of between 1 and 100 Angstroms and more typically between 5 and 60 Angstroms. The fuel cell catalyst typically comprises no electrically conductive carbon material and typically comprises at least a portion of the iridium in the zero oxidation state. | 02-25-2010 |
| 20100047669 | Multilayer electrolyte membrane - The present invention relates to a proton-conducting multilayer electrolyte membrane with a barrier layer, a process for producing it and a fuel cell containing such a membrane. | 02-25-2010 |
| 20100055542 | FUEL CELL - A fuel cell is provided which can enhance the CO resistance to thereby improve the voltage characteristics thereof. A fuel cell includes an electrolyte layer, a first electrode provided on one surface of the electrolyte layer, and a second electrode provided on the other surface of the electrolyte layer. In this fuel cell, a reaction fluid to be supplied to the first electrode contains carbon monoxide or carbon monoxide is generated from a reaction fluid having been supplied to the first electrode. The first electrode of the fuel cell includes a first catalyst material (Pt) having a function of extracting an electron from the reaction fluid, a second catalyst material (WAu) having a function of reducing the activation energy for conversion of carbon monoxide to carbon dioxide, and an oxygen-supplying material (Ru) supplying oxygen. | 03-04-2010 |
| 20100075201 | FUEL CELL WITH ELECTRODE HAVING AN ELECTRICALLY CONDUCTIVE NANO-COLUMN AND PRODUCTION METHOD THEREOF - In a fuel cell including an electrolyte membrane and a pair of electrodes disposed on both sides of the electrolyte membrane, at least one of the electrodes has an electrically conductive nanocolumn that is oriented with an inclination of 60° or less with respect to a planar direction of the electrolyte membrane, a catalyst supported on the electrically conductive nanocolumn, and an electrolyte resin coating the electrically conductive nanocolumn. | 03-25-2010 |
| 20100075202 | MEMBRANE-ELECTRODE ASSEMBLY INCLUDING GUARD GASKET - Disclosed is a membrane-electrode assembly (MEA) that prevents an electrolyte membrane from being damaged upon the fabrication of a single cell or a stack of fuel cells. The MEA further includes a guard gasket interposed between conventional gaskets, wherein the guard gasket has a thickness corresponding to 70%-95% of the thickness of the electrolyte membrane. The MEA ensures mechanical protection of the electrolyte membrane, and thus prevents the electrolyte membrane from being damaged by an excessive binding pressure upon the fabrication of a single cell or a stack of fuel cells. Furthermore, the contact resistance between the electrolyte membrane and the catalyst layer and the contact resistance between the gas diffusion layer and the catalyst layer can be minimized, thereby improving the quality of a fuel cell. | 03-25-2010 |
| 20100075203 | MEMBRANE-ELECTRODE UNIT COMPRISING A BARRIER JUNCTION - The present invention relates to a membrane-electrode assembly comprising at least one membrane, at least two electrode layers and at least one barrier layer, wherein the at least one barrier layer comprises at least one catalytically active species and/or at least one adsorbent material and the barrier layer is electronically nonconductive when a catalytically active species is present, the use of such a barrier layer in a membrane-electrode assembly and in a fuel cell, and also a gas-diffusion electrode and a fuel cell comprising such a membrane-electrode assembly. | 03-25-2010 |
| 20100075204 | ANODE CATALYST LAYER AND MEMBRANE-ELECTRODE ASSEMBLY OF DIRECT LIQUID FEED FUEL CELL AND DIRECT LIQUID FEED FUEL CELL - An anode catalyst layer of a direct liquid feed fuel cell includes a Pt—Ru or Pt—Pd black catalyst; and a supported Pt—Ru or Pt—Pd catalyst having Pt—Ru or Pt—Pd supported on a carbon-based support. A membrane-electrode assembly of a direct liquid feed fuel cell includes an electrolyte membrane; and anode and cathode electrodes positioned to face each other with the electrolyte membrane being positioned therebetween, wherein the anode and cathode electrodes respectively include a gas diffusion layer and a catalyst layer. The anode catalyst layer of a direct liquid feed fuel cell shows excellent activity for an oxidation reaction of fuel and good catalyst stability and durability together with minimizing a dose of catalyst since a black catalyst and a supported catalyst are used together at an optimized ratio. | 03-25-2010 |
| 20100092840 | ELECTRODE BINDER, ELECTRODE, MEMBRANE-ELECTRODE ASSEMBLY AND POLYMER ELECTROLYTE FUEL CELL - An electrode which can be used in a fuel cell having improved power generation performance and high durability, and a fuel cell having such an electrode, are provided. An electrode having catalyst layers arranged on both surfaces of an electrolyte membrane, wherein the electrode is characterized in that an electrode binder used for constituting the catalyst layers contains a cross-linked compound (X) having a silicon-oxygen bond, a polymer material (Y) containing an acid group, and an aqueous dispersion (Z) containing a thermoplastic resin. | 04-15-2010 |
| 20100099010 | ELECTROCHEMICAL ENERGY SOURCE AND ELECTRONIC DEVICE - The invention relates to an electrochemical energy source, comprising a substrate, and at least one cell deposited onto said substrate. The invention also relates to an electronic device, said device comprising at least one electrochemical energy source according to invention, and at least one electronic component electrically connected to said electrochemical energy source. | 04-22-2010 |
| 20100104924 | 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 |
| 20100129698 | ELECTRODE CATALYST FOR FUEL CELL - An electrode catalyst for fuel cell, containing a multinuclear complex, in which the multinuclear complex contains 2 to 4 transition metal atoms coordinated with a ligand having 5 to 15 coordination atoms in its molecule; and an electrode catalyst for fuel cell, comprising a mononuclear metal complex containing, as a ligand, an organic compound containing two or more phenol rings and three or more aromatic heterocycles. | 05-27-2010 |
| 20100136383 | NOVEL PRINTED FUEL CELL WITH INTEGRATED GAS CHANNELS - A method of manufacturing a fuel cell includes applying a sacrificial material periodically to a surface of an anode substrate, wherein at least some areas of the anode substrate have no sacrificial material. A first gas diffusion layer is applied to the sacrificial material, and a first catalyst material is applied to the first gas diffusion layer. An electrolyte material is applied to the anode substrate and the first gas diffusion layer, with the catalyst material, wherein a first surface of the electrolyte material is in operative association with the anode substrate, and the first gas diffusion layer. A second catalyst material is applied to the second surface of the electrolyte material. A second gas diffusion layer is applied to the electrolyte material on a second surface of the electrolyte material, with the catalyst material, wherein a first surface of the second gas diffusion layer is in contact with the second surface of the electrolyte material with the catalyst material. A cathode is applied to the second gas diffusion layer with the second catalyst material, and the sacrificial material is then removed from the surface of the anode substrate to create integrated gas channels for the manufactured fuel cell. | 06-03-2010 |
| 20100143767 | BINDER COMPOSITIONS AND MEMBRANE ELECTRODE ASSEMBLIES EMPLOYING THE SAME - Binder composites for membrane electrode assemblies and membrane electrode assemblies employing the same are provided. The binder composition includes a solvent, a hyper-branched polymer and a polymer with high ion conductivity, wherein the hyper-branched polymer and the polymer with high conductivity of hydronium are distributed uniformly over the solvent, and the hyper-branched polymer has a DB (degree of branching) of more than 0.5. | 06-10-2010 |
| 20100151297 | Membrane electrode assembly and fuel cell using the same - A membrane electrode assembly includes a proton exchange membrane, a first electrode and a second electrode. The proton exchange membrane has two opposite surfaces, a first surface and a second surface. The first electrode is located adjacent to the first surface of the proton exchange membrane, and the first electrode includes a first diffusion layer and a first catalyst layer. The second electrode is located adjacent to the second surface of the proton exchange membrane, and the second electrode includes a second diffusion layer and a second catalyst layer. At least one of the first diffusion layer and the second diffusion layer includes a carbon nanotube structure. A fuel cell using the membrane electrode assembly is also provided. | 06-17-2010 |
| 20100151298 | PROTON CONDUCTOR FOR FUEL CELL, ELECTRODE FOR FUEL CELL INCLUDING THE PROTON CONDUCTOR, AND FUEL CELL INCLUDING THE ELECTRODE - A proton conductor for a fuel cell, an electrode for a fuel cell that includes the proton conductor, and a fuel cell including the electrode of which the proton conductor includes a phosphoric acid-based material, and a C1-C20 ammonium perfluoroalkylsulfonate dissolved in the phosphoric acid-based material. | 06-17-2010 |
