Entries |
Document | Title | Date |
20080199753 | Fluorine Treatment of Polyelectrolyte Membranes - A method for providing a polymer electrolyte membrane for a fuel cell that includes treating a hydrocarbon polymer membrane with fluorine to increase its acidity and acid content. Fluorine gas is mixed with an inert gas to dilute the fluorine so that it does not burn the hydrocarbon membrane. The mixed gas is introduced into a container in which the hydrocarbon membrane is mounted so that fluorine is deposited on the membrane. The gas is introduced into the container at a slow enough rate so that the fluorine does not burn the membrane. | 08-21-2008 |
20080199754 | Method for Preparing a Radiation Grafted Fuel Cell Membrane with Enhanced Chemical Stability and a Membrane Electrode Assembly - In a method for preparing a membrane to be assembled in a membrane electrode assembly, such as a polymer electrolyte membrane fuel cell, a base polymer film is irradiated with at least one of electromagnetic and particle radiation in order to form reactive centers within the polymer film. The irradiated film is exposed to a mixture of monomers amenable to radical polymerization to form a graft copolymer in the irradiated film. The mixture includes α-methylstyrene and methacrylonitrile. The grafted film is sulfonated to introduce sulfonic acid sites providing ionic conductivity of the material. | 08-21-2008 |
20080199755 | CONDUCTIVE POLYMERS - There is provided a solid ionically conductive polymer having repeat units of a quaternary ammonium and including a plasticiser in an amount sufficient to render the polymer non-crystalline thereby increasing conductivity. | 08-21-2008 |
20080199756 | Polymer electrolyte membranes comprising alkyl graft chains and a process for producing the same - Polymer electrolyte membranes for use in fuel cells are produced by first graft polymerizing acrylic acid derivatives or vinylketone derivatives as monomers on polymer substrates and by then performing selective conversion to a sulfonic acid group of hydrogen atoms on the carbon atom adjacent to the carbonyl in the ketone or carboxyl group on the graft chains. | 08-21-2008 |
20080199757 | POLYMER COMPRISING TERMINAL SULFONIC ACID GROUP, AND POLYMER ELECTROLYTE AND FUEL CELL USING THE SAME - The present invention is related to a polymer comprising terminal sulfonic acid groups, which has a high ionic conductivity and good structural stability, does not decompose even under low humidity conditions, and is inexpensive to produce. Furthermore, the present invention is related to a polymer electrolyte and a fuel cell using the same. The polymer of the present invention has a substituent comprising a terminal sulfonic acid group comprising Formula (1) at a side chain: | 08-21-2008 |
20080213645 | Composite porous membrane and method for producing the same - A composite porous membrane comprises a porous matrix and a polymer. The porous matrix contains a fiber woven fabric, a fiber nonwoven fabric, a porous metal material, or a porous inorganic material, and the polymer forms a three-dimensional network structure in the porous matrix. The composite porous membrane may be obtained by impregnating the porous matrix with a solution of the polymer, and by solidifying while stretching the polymer. Preferred examples of the porous matrix include glass fiber nonwoven fabrics, and preferred examples of the polymer include polybenzimidazoles. | 09-04-2008 |
20080213646 | Proton-conductive composite electrolyte membrane and producing method thereof - A composite electrolyte membrane of the present invention includes a porous body composed of an inorganic substance and an electrolyte material. The porous body includes therein plural spherical pores in which a diameter is substantially equal, and communicating ports each allowing the spherical pores adjacent to each other to communicate with each other. The electrolyte material is provided on the spherical pores and the communicating ports, has proton conductivity, and is composed of a hydrocarbon polymer. The proton-conductive composite electrolyte membrane has excellent ion conductivity, high heat resistance, and restricted swelling when being hydrous, and is capable of being produced at low cost. | 09-04-2008 |
20080220309 | NANOCOMPOSITE, NANOCOMPOSITE ELECTROLYTE MEMBRANE INCLUDING THE SAME AND FUEL CELL INCLUDING THE NANOCOMPOSITE ELECTROLYTE MEMBRANE - A nanocomposite includes metal-carbon nanotubes and a sulfonated polysulfone. In the nanocomposite, the sulfonated polysulfone and the metal-carbon nanotubes have strong attraction therebetween due to π-π interactions or van der Waals interactions, and thus the nanocomposite has excellent ionic conductivity and mechanical properties. In addition, the nanocomposite includes a metal that can be used as a catalyst for an anode, and thus the reduction in power generation caused by methanol crossover can be minimized. Therefore, a nanocomposite electrolyte membrane prepared using the nanocomposite can minimize the reduction in power generation caused by the crossover of a polar organic fuel such as methanol. In a fuel cell employing the nanocomposite electrolyte membrane, when an aqueous methanol solution is used as a fuel, crossover of the methanol is more suppressed, and accordingly, the fuel cell has an improved operating efficiency and a longer lifetime. | 09-11-2008 |
20080220310 | Protection for Anode-Supported High-Temperature Fuel Cells Against Reoxidation of the Anode - Anode-supported high-temperature fuel cells with a substrate and an anode of stabilised zirconium dioxide and metallic nickel can be destroyed by air penetrating on the fuel gas side. Reoxidation causes the volume of the nickel in the anode to change. The resultant mechanical stresses may destroy the gas-impermeable electrolyte. The invention provides oxygen scavengers that can be produced at low cost for the anode, which more effectively bind the oxygen that penetrates on the fuel gas side than oxygen scavengers according to the prior art. | 09-11-2008 |
20080226960 | Separation Membrane for Fuel Battery and Process for Producing the Same - There are disclosed a membrane for a fuel cell in which voids in a porous membrane are filled with a crosslinking type ion exchange resin having both cation-exchange group and anion-exchange group via a covalent bond, wherein the ion exchange resin has ion-exchange groups with either polarity more than ion-exchange groups with the opposite polarity and at least 40% of the ion-exchange groups of the opposite polarity form ion complexes with the ion-exchange groups of the major polarity, as well as a producing process therefor. | 09-18-2008 |
20080226961 | Electrolyte/membrane assembly for fuel cell, and fuel cell incorporating that assembly - An electrolyte membrane assembly for use in a fuel cell or other electrochemical device includes an ion exchange membrane, a base electrolyte reservoir configured and operable to maintain a volume of a basic electrolyte solution in contact with at least some of the first face of the membrane, and an acid electrolyte reservoir configured and operable to maintain a volume of an acidic electrolyte in contact with at least a portion of the second face of the membrane. The membrane may be a cation exchange membrane or an anion exchange membrane. Also disclosed are fuel cells which incorporate the electrolyte membrane assembly. | 09-18-2008 |
20080233451 | Proton-exchange composite containing nanoparticles having outer oligomeric ionomer, and methods of forming - A proton-exchange composite includes a polymer matrix formed from a proton-exchange polymer and ionomer particles distributed therein. The polymer has side chains with ionic groups. The particles have an average particle size of less than 20 nm and include an oligomeric ionomer that interacts with the polymer and attracts the ionic groups on its side chains. The composite may be formed by a method in which an initiator is bonded to silica particulates. The initiator is used to initiate polymerization of a precursor monomer to form a salt form of the oligomeric ionomer bonded to the silica particulates, which is then reacted with an acid to produce the oligomeric ionomer, thus forming the ionomer particles. The ionomer particles are dispersed in a solution containing a solvent and the polymer dissolved therein. The solvent is removed. The residue is cured to form the composite. | 09-25-2008 |
20080233452 | POLYELECTROLYTE MATERIAL, METHOD FOR PRODUCING POLYELECTROLYTE MATERIAL, POLYELECTROLYTE COMPONENT, FUEL CELL, AND METHOD FOR PRODUCING FUEL CELL - A polyelectrolyte material includes as a main chain: a benzene ring; an ether; and a carbonyl group. A part of the benzene ring is sulfonated. A method for manufacturing a polyelectrolyte material includes: synthesizing disulfonyl difluorobenzophenone; and polymerizing the disulfonyl difluorobenzophenone, 4,4′-difluorobenzophenone, and phenolphthalein with a crown ether as a catalyst. The synthesizing is performed by reacting 4,4′-difluorobenzophenone with fuming sulfuric acid, performing salting-out the reaction product, and recrystallizing the salting-out product. | 09-25-2008 |
20080233453 | PROTON CONDUCTOR - A proton conductor is formed of a porous body as a substrate and proton-conducting polymer covalently bonded to inner surfaces of pores of the porous body. The proton-conducting polymer comprises a main chain and a plurality of branched side chains extending radially therefrom. The branched side chains are each bonded to a proton-conducting salt at the end. The proton-conducting polymer has a substantially cylindrical structure in which the salts can be circumscribed by a virtual circle having a center on the cross-sectional center of the main chain such that a radial direction of the virtual circle is perpendicular to a longitudinal direction of the main chain. The salts are located on the peripheral wall of the substantially cylindrical structure. Protons are transferred between the adjacent salts, so that a conduction channel is formed on the peripheral wall of the cylindrical structure. | 09-25-2008 |
20080233454 | Ion/Electron-Conducting Composite Polymer Membrane, Manufacturing Processes Thereof and Planar Fuel Cell Core Comprising It - The invention relates to an ion/electron-conducting composite polymer membrane ( | 09-25-2008 |
20080233455 | Proton conductors based on aromatic polyethers and their use as electolytes in high temperature pem fuel cells - Polymer electrolyte membranes with polyethylene oxide and phophonic acid moieties tethered on the main polyether backbone are provided as single phase proton conductors. Preferred polymers can exhibit good mechanical properties, high thermal and oxidative stability. The membrane-electrode assembly (MEA) is also provided. | 09-25-2008 |
20080241626 | Polymer blend membranes for fuel cells and fuel cells comprising the same - The present invention relates to polymer blend membranes of sulfonated and nonsulfonated polysulfones, methods for the preparation the membrane, and fuel cells comprising the same. The blend membranes can be obtained by varying drying condition and concentration of casting solution. The membranes have improved methanol barrier property, proton conductivity and membrane selectivity. | 10-02-2008 |
20080241627 | Partially sulfonated polybenzimidazole based polymer, method for preparing the same, MEA for fuel cell using the polybenzimidazole based polymer and method for preparing the same - A partially sulfonated polybenzimidazole based polymer for fuel cell membrane is prepared by copolymerizing monomers of 3,3′-diaminobenzidine, isophthalic acid and 5-sulfoisophthalic acid to obtain a partially sulfonated polybenzimidazole, and doping the partially sulfonated polybenzimidazole with inorganic acid. | 10-02-2008 |
20080241628 | MEMBRANE-ELECTRODE ASSEMBLY FOR SOLID POLYMER ELECTROLYTE FUEL CELL - An object of the present invention is to provide a membrane-electrode assembly for solid polymer electrolyte fuel cells, which can impart high electrical properties by increasing the introduction amount of the sulfonic acid group, has excellent swell suppression effect even under the humidified condition of high-temperature, and which has excellent electrical properties even under the condition of high-temperature and low-humidity. By using sulfonated polyarylene having specific constitutional units as a proton conductive membrane, a membrane-electrode assembly for solid polymer electrolyte fuel cells can be provided which has excellent swell suppression effect even under the humidified condition of high-temperature, and which has excellent proton conductivity even under the condition of high-temperature and low-humidity. | 10-02-2008 |
20080241629 | Fuel cell with proton conducting membrane - The present invention provides improved, low-cost fuel cells having reduced fuel crossover, reduced sensitivity to metal ion impurities and ability to operate under a broad range of temperatures. The invention further provides improved methods for catalyst preparation and a new integrated flow field system for use in H | 10-02-2008 |
20080241630 | BLEND OF IONIC (CO)POLYMER RESINS AND MATRIX (CO) POLYMERS - The invention relates to polymeric resin blends containing polyelectrolyte resins blended into a polymer or copolymer matrix. Specifically, the polyelectrolyte resins are (co)polymers without hydrolyzable groups. The matrix polymer is a tough, and highly chemical-resistant (co)polymer, preferably a fluoropolymer. The polymeric resin blend is useful for forming films, and especially films useful for MEAs for use in fuel cells. | 10-02-2008 |
20080248362 | Solution Based Enhancements of Fuel Cell Components and Other Electrochemical Systems and Devices - This invention relates in general to components of electrochemical devices, and to methods of preparing the components. The components and methods include the use of a composition comprising an ionically conductive polymer and at least one solvent, where the polymer and the solvent are selected based on the thermodynamics of the combination. In one embodiment, the invention relates to a component for an electrochemical device which is prepared from a composition comprising a true solution of an ionically conductive polymer and at least one solvent, the polymer and the at least one solvent being selected such that |δ solvent−δ solute|<1, where δ solvent is the Hildebrand solubility parameter of the at least one solvent and where δ solute is the Hildebrand solubility parameter of the polymer. In another embodiment, the invention relates to a method of improving at least one property of a component for an electrochemical device or at least one property of the electrochemical device, the method comprising preparing the component from a composition comprising a true solution of an ionically conductive polymer and at least one solvent, the polymer and the at least one solvent being selected such that |δ solvent−δ solute|<1, where δ solvent is the Hildebrand solubility parameter of the at least one solvent and where δ solute is the Hildebrand solubility parameter of the polymer. | 10-09-2008 |
20080248363 | Composite electrolyte material having high ionic conductivity and depleted electronic conductivity and method for producing same - A composite electrolyte material having increased ionic conductivity and suppressed electronic conductivity is provided. The composite electrolyte includes a first material exhibiting both ionic conductivity and electronic conductivity and a second material having electron trapping sites on the outer surface thereof. The first material is coated on the second material, or the second material is dispersed within the first material, and an electron depletion zone is created at interfaces between the first and second materials. The electrons trapped in the electron depletion zone do not contribute to the electronic conductivity of the composite electrolyte, and the ratio of ionic conductivity to electronic conductivity of the composite electrolyte is higher than that of the first material alone. | 10-09-2008 |
20080248364 | Proton conducting aromatic polyether type copolymers bearing main and side chain pyridine groups for use in proton exchange membrane fuel cells - New aromatic polyether type copolymers bearing main chain pyridine and side chain pyridine or pyrimidine units, which exhibit good mechanical properties, high thermal and oxidative stability, high doping ability and high conductivity values. The polymers are useful in the preparation and application of MEA on PEMFC type single cells. The polymers are, further, particularly suitable for use in high temperature PEM fuel cells. | 10-09-2008 |
20080254336 | Composite anode showing low performance loss with time - A solid oxide fuel cell includes cathode electrode, a solid oxide electrolyte, and an anode electrode including a first sublayer and a second sublayer. The first sublayer is located between the electrolyte and the second sublayer. The first sublayer is composed of a doped ceria and the second sublayer is composed of a nickel containing phase and a ceramic phase including a doped ceria and scandia stabilized zirconia, such as scandia ceria stabilized zirconia. | 10-16-2008 |
20080254337 | Solid electrolyte type fuel cell and air electrode current collector used for the same - A solid electrolyte type fuel cell which incorporates a metal separator comprising a base material of a metal other than silver or a silver alloy which is plated with silver or a silver alloy. The fuel cell can achieve improved efficiency for electricity generation with no increase of the resistance of the metal separator, even when it is operated at a low temperature. | 10-16-2008 |
20080254338 | Ion-conducting membrane and preparing method of same - In an ion-conducting membrane, a polystyrene portion having ion conductivity and a polyethylene portion that forms a membrane skeleton together form a microphase-separated structure. | 10-16-2008 |
20080261098 | PROTON-CONDUCTING MEMBRANES FOR ELECTROCHEMICAL DEVICES, AND RELATED ARTICLES AND PROCESSES - A method for making a proton-conducting membrane is described. The method includes the steps of combining a protonated, layered inorganic material with a proton-conducting organic polymer in a liquid medium; exfoliating the layered inorganic material, so that individual layers of the inorganic material are suspended in the liquid medium and spaced from each other; and the polymer is absorbed onto the surface of the individual layers. In this manner, a polymer-inorganic composite is formed. The liquid can then be removed, to recover the resulting membrane. Related electrolysis and fuel cell devices are also described, which incorporate the proton-conducting membrane. | 10-23-2008 |
20080261099 | Heterogeneous ceramic composite SOFC electrolyte - A solid oxide fuel cell (SOFC) includes a cathode electrode, a solid oxide electrolyte, and an anode electrode. The electrolyte includes yttria stabilized zirconia and scandia stabilized zirconia, such as scandia ceria stabilized zirconia. | 10-23-2008 |
20080261100 | Polymer electrolyte membrane and membrane electrode assembly - It is the objective to provide an electrolyte membrane with low cost, high ion conductivity, and low swelling. | 10-23-2008 |
20080261101 | POLYMER ELECTROLYTE MEMBRANE COMPRISING COORDINATION POLYMER - A polymer electrolyte membrane is made from a polymer electrolyte and a coordination polymer, and finds use in a fuel cell. The polymer electrolyte membrane may be made by dissolving a polymer electrolyte in a solvent to provide a first solution, adding a coordination polymer to the first solution to yield a second solution, and forming the second solution into a film. | 10-23-2008 |
20080261102 | SULFONATED-PERFLUOROCYCLOBUTANE POLYELECTROLYTE MEMBRANES FOR FUEL CELLS - A process for preparing a polymer comprising sulfonating a perfluorocyclobutane polymer with a sulfonating agent to form a sulfonated perfluorocyclobutane polymer, wherein the sulfonating agent comprises oleum, SO | 10-23-2008 |
20080280182 | POLYMER MEMBRANE, METHOD FOR THE PRODUCTION AND USE THEREOF - The present invention relates to an acid-doped polymer membrane based on polyazoles. The acid-doped polymer membrane can be used in a variety of applications because of its excellent mechanical properties and is useful as polymer electrolyte membrane (PEM) in PEM fuel cells. A doped polymer membrane based on polyazoles is obtained by a process comprising the steps of: A) casting a film using a solution of polymers based on polyazoles in a polar, aprotic organic solvent; B) drying the film formed in step A) until it is self-supporting; C) treating the film obtained in step B) with a treatment liquid at a temperature in the range from room temperature to the boiling point of the treatment liquid; D) drying and/or dabbing the film treated according to step C) to remove the treatment liquid from step C); and E) doping the film treated according to step D) with a doping agent. | 11-13-2008 |
20080286627 | Electrolyte Membrane and Fuel Cell Employing Said Electrolyte Membrane - To provide an inexpensive electrolyte membrane that can be used in electrochemical device applications such as a solid polymer type fuel cell, has high proton conductivity, has excellent performance in preventing permeation of methanol when used in a DMFC, and has excellent durability when operated as a fuel cell. | 11-20-2008 |
20080286628 | Particles Comprising Zwitterionic Structural Elements - Solid particles bearing zwitterionic functional groups exhibit properties unlike other functionalized particles, and are particularly useful as proton-conductive fillers in membranes for fuel cells, where they increase physical properties as well as charge conducting properties. The particles are prepared by reacting functionalized particles with zwitterionic group-containing silanes or siloxanes. | 11-20-2008 |
20080286629 | CHEMICALLY CROSS LINKED IONOMER MEMBRANE - The invention provides cross-linked polymer electrolyte membranes (PEM's), catalyst coated proton exchange membranes (CCM's) and membrane electrode assemblies (MEA's) that are useful in fuel cells and their application in electronic devices, power sources and vehicles. | 11-20-2008 |
20080292935 | Methods to Prepare Chemically Stabilized Ionomers Containing Inorganic Fillers - Ionomeric polymers that are chemically stabilized and contain inorganic fillers are prepared and show reduced degradation. The ionomeric polymers are useful in electrochemical and fuel cells. | 11-27-2008 |
20080299436 | COMPOSITE CERAMIC ELECTROLYTE STRUCTURE AND METHOD OF FORMING; AND RELATED ARTICLES - A composite ceramic electrolyte is provided. The composite ceramic electrolyte has a microstructure, which comprises a first ceramic composition comprising a plurality of nano-dimensional microcracks, and a second ceramic composition substantially embedded within at least a portion of the plurality of nano-dimensional microcracks. The first and the second compositions are different. A solid oxide fuel cell comprising a composite ceramic electrolyte having such a microstructure is provided. A method of making a composite ceramic electrolyte is also described. The method includes the steps of: providing a first ceramic composition comprising a plurality of nano-dimensional microcracks; and closing a number of the nano-dimensional microcracks with a second ceramic composition, wherein the first and the second compositions are different, so as to form a composite ceramic electrolyte having a microstructure which comprises a first ceramic composition comprising a plurality of nano-dimensional microcracks and a second ceramic composition substantially embedded within at least a portion of the plurality of nano-dimensional microcracks. | 12-04-2008 |
20080299437 | POLYELECTROLYTE MEMBRANE FOR ELECTROCHEMICAL APPLICATIONS, IN PARTICULAR FOR FUEL CELLS - A polyelectrolyte membrane may include at least one styrene polymer or copolymer having a syndiotactic configuration and having sulfonic groups. The at least one styrene polymer or copolymer may be made in the form of a film in clathrate form. The film may include less than about 0.1% sulfonate groups of —SO | 12-04-2008 |
20080305378 | Proton exchange membrane fuel cell - A proton exchange membrane fuel cell is described and which includes a proton exchange membrane having at least one gas diffusion layer which is juxtaposed relative thereto, and which is fabricated, at least in part, of a porous, electrically conductive, inorganic material which is selected from the group comprising metal diborides, metal disilicides, metal nitrides, metal carbides, and composites, laminates and solid solutions thereof. | 12-11-2008 |
20080305379 | Polymer Electrolyte Membrane for Fuel Cell and Membrane-Electrode Assembly and Fuel Cell Including the Same - Disclosed is a polymer electrolyte membrane for a fuel cell that has a high ionic conductivity even at a high temperature without humidification. The polymer electrolyte membrane comprises a film composed of a polyimide copolymer containing phenylbenzimidazole, and an acid impregnated within the polyimide copolymer film. Also disclosed is another polymer electrolyte membrane for a fuel cell that has good chemical resistance and improved physical properties when compared to those of the previous polymer electrolyte membrane. | 12-11-2008 |
20080318108 | Solid Electrolyte, Membrane and Electrode Assembly, and Fuel Cell - A solid electrolyte having an aromatic ring, wherein a sulfonic acid group represented by the following formula (1) bonds to the aromatic ring. | 12-25-2008 |
20080318109 | Method for the production of a sulfonated poly (1, 3, 4-oxadiazole) polymer - A sulfonated poly(1,3,4-oxadiazole) polymer is produced by producing of a solution of hydrazine sulfate salt and a non-sulfonated dicarboxylic acid or derivative thereof in polyphosphoric acid; heating the solution under an inert gas atmosphere; and precipitating sulfonated poly(1,3,4-oxadiazole) polymer in a basic solution. | 12-25-2008 |
20090004525 | Ion-Dissociative Functional Compound, Method for Production Thereof, Ionic Conductor, and Electrochemical Device - Disclosed herein are an ion-dissociative functional compound, a method for production thereof, an ionic conductor, and an electrochemical device, the ion-dissociative functional compound being thermally and chemically stable under the condition required of fuel cells and being suitable for use as a material such as protonic conductor in fuel cells. | 01-01-2009 |
20090004526 | PROTON EXCHANGE MEMBRANE FOR FUEL CELL - A proton exchange membrane (PEM) with an ion exchange capacity of not less than 1 molar equivalent per kilogram and less than 20% water swelling is provided. The PEM includes a polymer having a polyphosphazene backbone with a polyaromatic functional group linked to the polyphosphazene as a polyaromatic side chain, a non-polyaromatic functional group linked to the polyphosphazene as a non-polyaromatic side chain, and an acidic functional group linked to the non-polyaromatic side chain. The polyaromatic functional group linked to the polyphosphazene provides for increased thermal and chemical stability, excellent ionic conductivities and low water swelling. The mole fraction of polyaromatic functional groups linked to the polyphosphazene backbone is between 0.05 and 0.60. | 01-01-2009 |
20090004527 | POLYMER, POLYMER ELECTROLYTE MEMBRANE FOR POLYMER ELECTROLYTE FUEL CELL, AND MEMBRANE/ELECTRODE ASSEMBLY - A polymer electrolyte membrane made of a polymer has a low electrical resistance, high heat resistance and is strong against repeats of swelling and shrinkage. Thus, a membrane/electrode assembly for polymer electrolyte fuel cells having high power generation performance and excellent in durability can be provided. | 01-01-2009 |
20090004528 | PROTON-CONDUCTING POLYMER MEMBRANE - A polymer electrolyte membrane includes a membrane polymer made of monomer units that have aromatic polyarylenes groups with proton-conducting functional groups bound to the aromatic polyarylene groups. The polymer electrolyte membrane can be used as a proton-conducting polymer membrane between the electrodes in a fuel cell. | 01-01-2009 |
20090004529 | Integrated dry gasification fuel cell system for conversion of soild carbonaceous fuels - An integrated dry gas fuel cell (IDG-FC) is provided. The IDG-FC includes at least one solid oxide fuel cell having an anode, a cathode and an electrolyte membrane disposed between the anode and the cathode. The IDG-FC further includes a conversion bed, where carbon dioxide gas is provided to the conversion bed to convert carbon monoxide gas from the carbon dioxide gas. Solid carbonaceous fuel is provided to the conversion bed to promote the gas conversion. The carbon monoxide is provided as fuel to the anode, and air is supplied to the cathode to provide oxygen for oxidation of the carbon monoxide at the anode to generate electric power. This new process does not require water, and supplies the oxygen required for the oxidation reaction through an ionically selective solid oxide electrolyte membrane. | 01-01-2009 |
20090011315 | Thin-Film Composite and a Glass Ceramic Substrate Used in a Miniaturized Electrochemical Device - A composite element comprising a thin film that consists of at least two layers of an oxide-ceramic and metallic material, or a metallic material and an essentially flat substrate that supports the thin film. Said substrate is composed of a ceramicizable glass, a glass ceramic, a hybrid form or an intermediate product. To produce the substrate, selected regions are dissolved out of the photostructurable glass substrate. The composite element can be successfully used in a miniaturised electrochemical device, in particular in a solid oxide fuel cell SOFC, a sensor or as a gas separation membrane. | 01-08-2009 |
20090017358 | SOLID POLYELECTROLYTE FILM, PROCESS FOR PRODUCING THE SAME, AND FUEL CELL - A high-performance solid polyelectrolyte film is provided which is produced by the radiation-induced graft polymerization method without causing solution gelation and which is excellent in mechanical strength, chemical stability, and dimensional stability and reduced in methanol permeability. According to the present invention, the solid polyelectrolyte film is produced by graft-polymerizing either a polymerizable monomer having an alkoxysilyl group alone or the polymerizable monomer having an alkoxysilyl group and another polymerizable monomer with a resin film which has been irradiated with a radiation, followed by hydrolyzing the alkoxysilyl groups to conduct dehydrating condensation. In addition, this solid polyelectrolyte film is disposed between a fuel electrode and an air electrode to fabricate a fuel cell. | 01-15-2009 |
20090017359 | Method for Manufacturing Membrane Electrode Assembly and Reinforced Electrolyte Membrane in Polymer Electrolyte Fuel Cell, and Mebrane Electrode Assembly and Reinforced Electrolyte Membrane Obtained by the Manufacturing Method - A membrane electrode assembly A in a polymer electrolyte fuel cell is manufactured in a state in which no boundary is present between an electrolyte membrane | 01-15-2009 |
20090017360 | OLIGOMERIC AND POLYMERIC AROMATIC PHOSPHONIC ACIDS, THEIR BLENDS, PROCESSES FOR PREPARING THEM AND USES AS POLYELECTROLYTES - The present invention relates to halogen-free, oligomeric or polymeric phosphonic acids made up of units of the general formula (I) | 01-15-2009 |
20090023036 | LIQUID-LIQUID FUEL CELL SYSTEMS HAVING FLOW-THROUGH ANODES AND FLOW-BY CATHODES - The invention disclosed herein relates to fuel cell electrode pair assemblies, not having interposing proton exchange membranes, configured to receive and react with liquid anolyte and liquid catholyte microfluidic flowstreams. In one embodiment, the present invention is directed to a fuel cell electrode pair assembly, not having an interposing proton exchange membrane, configured to receive and react with a liquid microfluidic anolyte flowstream (e.g., laminarly flowing methanol solution) and a liquid microfluidic catholyte flowstream (e.g., laminarly flowing nitric acid solution), wherein the fuel cell electrode pair assembly comprises: a porous flow-through anode; a porous flow-by cathode confronting and spaced apart from the anode; and a central plenum interposed between and connected to the anode and the cathode. | 01-22-2009 |
20090023037 | Ionic Conductor - A material which conducts protons or oxide ions with high ionic conductivity and is excellent in moisture resistance and reduction resistance is provided. A perovskite oxide represented by the formula (1): | 01-22-2009 |
20090023038 | LIQUID MATERIALS FOR USE IN ELECTROCHEMICAL CELLS - Disclosed is the use of liquid precursor materials to prepare a processible polymeric electrolyte, which can be used to form a proton exchange membrane for use in an electrochemical cell. Also disclosed is the use of liquid precursor materials to prepare a processible catalyst ink composition, which can be conformally applied to a proton exchange membrane and a electrode material for use in an electrochemical cell. Also disclosed is the use of a photocurable perfluoropolyether (PFPE) material to form a microfluidic electrochemical cell. | 01-22-2009 |
20090029223 | PROTON CONDUCTING ELECTROLYTE - A cationic conductive polymer is described herein which generally comprises a proton donating polymer and an oxocarbonic acid. The cationic conductive polymer exhibits a high conductivity in low humidity environments. | 01-29-2009 |
20090042078 | Surface-treated hydrocarbon-based polymer electrolyte membranes for direct oxidation fuel cells - A proton (H | 02-12-2009 |
20090042079 | CATALYST FOR FUEL CELLS - To provide a catalyst for a fuel cell that has a high oxygen reduction activity and is manufactured at low cost and a fuel cell that has a high power generation efficiency and is manufactured at low cost. As a catalyst for a fuel cell that reduces an oxidizing gas, a catalyst for a fuel cell that contains palladium at least partially oxidized is used. In a fuel cell having an anode that oxidizes a fuel, a cathode that reduces an oxidizing gas and a solid polymer electrolyte membrane disposed between the anode and the cathode, a palladium oxide is used as a cathode catalyst. | 02-12-2009 |
20090042080 | Porous Body and Production Method - A porous body which has a density of from 40 to 70%, is formed from an Fe-based alloy and contains from 0.01 to 2% by weight of mixed oxide with at least one oxidic compound of one or more metals from the group consisting of Y, Sc, rare earth metals and at least one further oxidic compound of one or more metals from the group consisting of Ti, Al, Cr. The porous body displays no after-shrinkage even at operating temperatures of 900° C., it has very good corrosion resistance and it is particularly suitable as a support substrate for use in high-temperature fuel cells. | 02-12-2009 |
20090047562 | Method for Producing Solid Electrolyte Sheet and Solid Electrolyte Sheet - The method of the present invention for producing a solid electrolyte sheet for a solid oxide fuel cells is characterized in comprising steps of obtaining a large-sized thin zirconia green sheet by molding and drying a slurry containing zirconia particles, a binder, a plasticizer and a dispersion medium; pressing the zirconia green sheet in the thickness direction with a pressure of not less than 10 MPa and not more than 40 MPa; firing the pressed zirconia green sheet at 1200 to 1500° C.; and controlling a time period when a temperature is within the range of from 500° C. to 200° C. to not less than 100 minutes and not more than 400 minutes when cooling the sheet after firing. | 02-19-2009 |
20090047563 | VINYL POLYMER OF SULFONATED MONOMER, PRODUCTION METHOD THEREOF, POLYMER ELECTROLYTE, POLYMER ELECTROLYTE MEMBRANE AND FUEL CELL - Provided is a vinyl polymer of a sulfonated monomer having a basic skeleton represented by the following formula (1), | 02-19-2009 |
20090053576 | Fluorochloro Ionomers - This invention discloses novel fluorochloro ionomers and processes of making them. The first preferred body of invention is perfluorochloro ionomers having (1) equivalent weight between 600 and 1500, preferably between 800 and 1200, and most preferably between 900 and 1100; (2) chlorine content between 8% and 30% by weight. These ionomers are breathable and excellent barrier materials, capable of being processed into thin films or membranes and are well suited for low humidity or high temperature fuel cell applications and for chemical protective covering materials. The second preferred body of invention is partially fluorochloro ionomers having (1) moisture vapor permeability rate >3000 gram H | 02-26-2009 |
20090053577 | Membrane Electrode Assembly and Fuel Cell Using the Same - A membrane electrode assembly for a fuel cell of the present invention includes an electrolyte membrane ( | 02-26-2009 |
20090053578 | Separation Membrane for Direct Liquid Fuel Cell - The present invention provides a membrane for direct liquid fuel cell, composed of a cation exchange membrane having a water content of 1 to 5% at a relative humidity of 20% RH (25° C.), a water content of 5 to 15% at a relative humidity of 80% RH (25° C.) and a water content of 20 to 40% at a relative humidity of 100% RH (25° C.). The membrane is suitable as a membrane for fuel cell in which the air is taken in and is supplied into an oxidant chamber with no substantial humidity control, is high in non-permeability of liquid fuel, and has good proton conductivity. | 02-26-2009 |
20090061277 | Ionically conductive polymers for use in fuel cells - An ionically conductive polymer is a copolymer including first and second polymer segments. The first polymer segments have a hydrophobic character and a high oxygen permeability. The second polymer segments have a hydrophilic character and a low oxygen permeability. The copolymer has an ionic conductivity of at least about 1×10 | 03-05-2009 |
20090061278 | POLYMERIZED INORGANIC-ORGANIC PRECURSOR SOLUTIONS AND SINTERED MEMBRANES - Polymerised inorganic-organic precursor solution obtainable according to a process comprising the steps of | 03-05-2009 |
20090061279 | METAL SUPPORTED SOLID OXIDE FUEL CELL - A reversible solid oxide fuel cell obtainable by a method comprising the steps of:
| 03-05-2009 |
20090061280 | METHOD FOR PRODUCING -SO3H GROUP-CONTAINING FLUOROPOLYMER AND -SO3H GROUP-CONTAINING FLUOROPOLYMER - The present invention provides a novel production process by which unstable terminal groups can be sufficiently stabilized under mild conditions. The present invention is related to a method for producing an —SO | 03-05-2009 |
20090068528 | HEAT TREATMENT OF PERFLUORINATED IONOMERIC MEMBRANES - A process for the conditioning of fully hydrated fluorinated membranes. The hydrated membrane is heated while under pressure, and allowed to cool before the pressure is released. | 03-12-2009 |
20090068529 | SILICIFIED ELECTROLYTE MATERIAL FOR FUEL CELL, METHOD FOR ITS PREPARATION AND FUEL CELL USING SAME - This material suitable for constituting an electrolyte for a fuel cell has a hydrophobic matrix comprising carbon, fluorine, oxygen and hydrogen, and silicon. | 03-12-2009 |
20090068530 | Membrane electrode assembly and direct liquid fuel cell - To provide a membrane electrode assembly suitable for a fuel cell or an electrochemical device, and a direct methanol fuel cell employing the membrane electrode assembly. | 03-12-2009 |
20090068531 | SOLID ELECTROLYTE WITH HIGH ION-CONDUCTIVITY AND METHOD FOR MANUFACTURING THE SAME, AND ELECTROCHEMICAL SYSTEM USING SOLID ELECTROLYTE - The present invention provides a solid electrolyte with high ion-conductivity which is cheap and exhibits high conductivity in an alkaline form, and stably keeps high conductivity because of a small amount of the leak of a compound bearing conductivity even in a wet state. The invention is useful in an electrochemical system using the solid electrolyte, such as a fuel cell. | 03-12-2009 |
20090068532 | SOLID OXIDE TYPE FUEL CELL AND METHOD FOR MANUFACTURING THE SAME - The fuel cell uses a solid oxide as an electrolyte and includes a cell main body. The cell main body, which includes an anode layer, an electrolyte layer and a cathode layer, is formed on a mesh conductor according to a plasma spraying method. Atmospheres respectively in contact with the anode and cathode layers are operated according a method in which they are isolated from each other. The method for manufacturing the solid type fuel cell is characterized in that an anode composition, an electrolyte composition and a cathode composition are plasma sprayed onto the mesh conductor sequentially in this order. | 03-12-2009 |
20090068533 | FUEL ELECTRODES FOR SOLID OXIDE ELECTROCHEMICAL CELL, PROCESSES FOR PRODUCING THE SAME, AND SOLID OXIDE ELECTROCHEMICAL CELLS - A fuel electrode for a solid oxide electrochemical cell includes: an electrode layer including a mixed phase constituted of zirconia stabilized with yttrium oxide, ytterbium oxide, or scandium oxide and of an oxide selected from the group including an aluminum-based oxide and a magnesium-based composite oxide, said oxide having, supported on a surface part thereof, particles of at least one member selected from nickel, cobalt, and nickel-cobalt alloys; a meshy wiring formed on a surface layer part of the electrode layer and made of a material having higher electronic conductivity than the electrode layer; and a current collector which overlies the electrode layer and is in contact with at least the wiring. | 03-12-2009 |
20090068534 | Highly proton-conductive polymer electrolyte membranes that excel in mechanical strength and a process for producing the same - A vinyl monomer is graft polymerized on an aromatic hydrocarbon-based polymer film substrate to introduce graft chains into the substrate and thereafter a functional monomer represented by the following formula and having sulfonic acid groups or functional groups capable of conversion to sulfonic acid groups is graft polymerized to introduce the sulfonic acid groups or the functional groups capable of conversion to sulfonic acid groups: | 03-12-2009 |
20090075146 | METHOD OF PROCESSING A CERAMIC LAYER AND RELATED ARTICLES - A method of processing a ceramic layer is provided. The method comprises the steps of providing a ceramic layer comprising a plurality of microcracks; infiltrating at least some of the plurality of microcracks with a liquid precursor comprising at least one oxidizable metal ion; and exposing the ceramic layer to a base having a pH value of at least about 9, so as to chemically convert the oxidizable metal ion into an oxide, thereby decreasing the porosity of the ceramic layer. A solid oxide fuel cell is provided. The solid oxide fuel cell comprises an anode; a cathode; and a ceramic electrolyte disposed between the anode and the cathode. The ceramic electrolyte is processed by the method comprising the steps of providing a ceramic electrolyte comprising a plurality of microcracks; infiltrating at least some of the plurality of microcracks with a liquid precursor comprising at least one oxidizable metal ion; and exposing the ceramic electrolyte to a base having a pH value of at least about 9, so as to chemically convert the oxidizable metal ion into an oxide, thereby decreasing the porosity of the ceramic electrolyte. | 03-19-2009 |
20090075147 | Sulfonic acid group-containing polymer, method for producing the same, resin composition containing such sulfonic acid group-containing polymer, polymer electrolyte membrane, polymer electrolyte membrane/electrode assembly, and fuel cell - The present invention relates to a sulfonic acid group-containing polymer excellent in ion conductivity and durability, a method for producing the same, a resin composition containing the sulfonic acid group-containing polymer, a polymer electrolyte membrane, a polymer electrolyte membrane/electrode assembly, and a fuel cell. The sulfonic acid group-containing polymer of the present invention, in a first embodiment, includes a constituent represented by the following chemical formula 1: | 03-19-2009 |
20090075148 | BENZOXAZINE-BASED MONOMER, POLYMER THEREOF, ELECTRODE FOR FUEL CELL INCLUDING THE SAME, ELECTROLYTE MEMBRANE FOR FUEL CELL INCLUDING THE SAME, AND FUEL CELL USING THE SAME - A benzoxazine-based monomer, a polymer thereof, an electrode for a fuel cell including the same, an electrolyte membrane for a fuel cell including the same, and a fuel cell using the same. The aromatic ring may contain up to 2 nitrogens within the ring. Single ring and fused ring substituents are attached to the pendent nitrogen. The ring substituents may be heterocyclic. | 03-19-2009 |
20090075149 | SOLID ACID ELECTROLYTES FOR ELECTROCHEMICAL DEVICES - Improved solid acid electrolyte materials, methods of synthesizing such materials, and electrochemical devices incorporating such materials are provided. The stable electrolyte material comprises a solid acid capable undergoing rotational disorder of oxyanion groups and capable of extended operation at elevated temperatures, that is, solid acids having hydrogen bonded anion groups; a superprotonic, trigonal, tetragonal, or cubic, disordered phase; and capable of being operating at temperatures of ˜100° C. and higher. | 03-19-2009 |
20090075150 | MATERIAL FOR SOLID POLYELECTROLYTE SUITABLE FOR USE IN FUEL CELL - A material for solid polyelectrolytes which comprises a polymer comprising two or more fluoropolymer segments differing in monomer composition, wherein at least one of the fluoropolymer segments has sulfonic acid type functional groups. | 03-19-2009 |
20090081517 | Solid Oxide Fuel Cell Generator Including a Glass Sealant - A solid oxide fuel cell generator is provided for electrochemically reacting a fuel gas with a flowing oxidant gas at an elevated temperature to produce power. The generator includes a generator section receiving a fuel gas and a plurality of elongated fuel cells extending through the generator section and having opposing open fuel cell ends for directing an oxidant gas between opposing plena in the generator. A sealant defines a seal on the fuel cells adjacent at least one of the fuel cell ends. The sealant is a modified lanthanum borate aluminosilicate glass composition having a minimal amount of boron oxide and silica, and in which the sealant maintains substantially constant physical characteristics throughout multiple thermal cycles. | 03-26-2009 |
20090081518 | SOLID ELECTROLYTE MEMBRANE, METHOD AND APPARATUS OF PRODUCING THE SAME, MEMBRANE ELECTRODE ASSEMBLY, AND FUEL CELL | 03-26-2009 |
20090087715 | Polymer electrolyte membrane and membrane-electrode assembly for fuel cell and fuel cell system including same - A polymer electrolyte membrane is provided with a cation exchange resin and a mineral additive including an exfoliated layered silicic acid-based clay. The polymer electrolyte membrane includes the nano-sized exfoliated mineral additive dispersed in the polymer electrolyte membrane, and thereby fuel cross-over can be effectively suppressed by the small amount of mineral additive while maintaining excellent ion conductivity and mechanical properties. | 04-02-2009 |
20090092880 | METHOD FOR PREPARING HOMOGENEOUSLY SULFONATED POLY (ETHER ETHER KETONE) MEMBRANES BY THE CASTING METHOD USING ORGANIC SOLVENTS - The present invention relates to a method for preparing PEEK electrolyte membrane which is sulfonated homogeneously by employing organic solvent casting method. The method of preparing PEEK according to the present invention consists of steps of: dissolving the dried PEEK in methyl sulfonic acid solution; diluting the prepared solution with sulfuric acid for sulfonation; precipitating, filtering and washing the obtained material; dissolving the obtained material in organic solvents; and solidifying the obtained material. The methanol permeability of the membrane is lowered by 1/10 to that of Nafion, and the Young's modulus of the membrane is increased by about 10 times while the ion conductivity is maintained at a constant state by employing the present method. Further, the properties of the electrolyte membrane are affected by the type of organic solvent selected. | 04-09-2009 |
20090092881 | PROTON CONDUCTING ELECTROLYTE AND ELECTROCHEMICAL CELL USING SAME - A proton conductive electrolyte ( | 04-09-2009 |
20090098436 | POWER GENERATION CELL FOR SOLID ELECTROLYTE FUEL CELL - Provided is a power generation cell for a solid electrolyte fuel cell, in which a lanthanum gallate-based electrolyte is used as a solid electrolyte. Use of alternative energy for replacing petroleum can be promoted and it is possible to use waste heat using the solid electrolyte fuel cell, thus the solid electrolyte fuel cell is watched in views of resource nursing and the environment. The power generation cell is typically operated at 800 to 1000° C. However, currently, the power generation cell, which is operated at 600 to 800° C. by using the lanthanum gallate-based electrolyte, is suggested. Since a current power generation cell has a large size and has an insufficient output, there are demands for size reduction and high output. In the power generation cell, Sm-doped ceria particles are separately attached to a surface of porous nickel having a network frame structure. The demands are satisfied by using the anode. | 04-16-2009 |
20090098437 | POLYBENZIMIDAZOLE-BASE COMPLEX, CROSSLINKED MATERIAL OF POLYBENZOXAZINES FORMED THEREOF, AND FUEL CELL USING THE SAME - A polybenzimidazole-base complex includes a polybenzimidazole-based material and a base, wherein a peak corresponding to NH of an imidazole ring of the polybenzimidazole-based material does not appear at a chemical shift of 12 to 15 ppm in a | 04-16-2009 |
20090098438 | ION CONDUCTIVE MATERIAL, CONDUCTIVE FILM FOR FUEL CELL, FILM ELECTRODE BONDED BODY AND FUEL CELL - A novel ion conductive material is provided. The ion conductive material composed of an amorphous material is employed. | 04-16-2009 |
20090104500 | Proton Conductors - Proton conductivity has been shown in acceptor-doped rare earth orthoniobates and tantalates (LnNbO | 04-23-2009 |
20090110994 | POLYMER HAVING OXOCARBON GROUP, AND USE THEREOF - The present invention provides a novel polymer composed of polyarylene in the main chain and having oxocarbon groups which is particularly useful in battery and fuel cell applications. | 04-30-2009 |
20090110995 | POLYMER HAVING OXYCARBON GROUP, AND USE THEREOF - The present invention provides a novel polymer having oxocarbon groups which is particularly useful in battery and fuel cell applications. | 04-30-2009 |
20090110996 | METHOD OF PREPARING FUEL CELL COMPRISING PROTON CONDUCTING SOLID PEROVSKITE ELECTROLYTE MEMBRANE WITH IMPROVED LOW TEMPERATURE ION CONDUCTIVITY, AND MEMBRANE ELECTRODE ASSEMBLY OF FUEL CELL PREPARED BY THE METHOD - Provided are a method of preparing a fuel cell and a membrane electrode assembly prepared by the method. The method includes preparing a substrate, forming a buffer layer having a single crystalline structure on the substrate, forming a proton conducting solid perovskite electrolyte membrane on the buffer layer, forming a first electrode on one surface of the proton conducting solid perovskite electrolyte membrane, etching the substrate, and forming a second electrode on the opposite surface of the one surface of the electrolyte membrane. Thus, the method of preparing a fuel cell can improve ion conductivity of an electrolyte membrane at a low temperature and a membrane electrode assembly of a fuel cell prepared by the method can improve ion conductivity at a low temperature. | 04-30-2009 |
20090110997 | Ion-conductive material, solid polymer electrolyte membrane and fuel cell - An ion-conductive material characterized by comprising an ion-conductive main component polymer and a polymer with a lower glass transition temperature (Tg) than the main component polymer, added to the main component polymer, and a solid polymer fuel cell using the ion-conductive material. As a result, the ion conductivity of a solid polymer electrolyte can be improved from the viewpoint of molecular motion. | 04-30-2009 |
20090110998 | SOLID ELECTROLYTE MEMBRANE, METHOD AND APPARATUS FOR PRODUCING THE SAME, MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELL - In a casting membrane forming process ( | 04-30-2009 |
20090117436 | ELECTROLYTE MEMBRANE FOR FUEL CELL AND FUEL CELL USING THE SAME - A fuel cell including an electrolyte membrane and/or an electrode which includes a crosslinked polybenzoxazine-based compound formed of a polymerized product of at least one selected from a first benzoxazine-based monomer and second benzoxazine-based monomer, the first benzoxazine-based monomer and second benzoxazine-based monomer having a halogen atom or a halogen atom-containing functional group, crosslinked with a cross-linkable compound. | 05-07-2009 |
20090117437 | Membrane electrode assembly and method for making the same - The present invention relates to a membrane electrode assembly. The proton exchange membrane includes two opposite surfaces. The two electrodes are separately disposed on two the opposite surfaces of the proton exchange membrane. The two electrodes are separately disposed on two opposite surfaces of the proton exchange membrane. Further, each electrode includes a catalyst layer and a gas diffusion layer. The catalyst layer is configured for being sandwiched between the gas diffusion layer and the proton exchange membrane. The gas diffusion layer includes a carbon nanotube film. The carbon nanotube film includes a plurality of carbon nanotubes tangled with each other. And a method for making the membrane electrode assembly is also included. | 05-07-2009 |
20090117438 | POLYMER ELECTROLYTE, AND POLYMER ELECTROLYTE MEMBRANE, MEMBRANE-ELECTRODE ASSEMBLY AND FUEL CELL THAT ARE USING THE POLYMER ELECTROLYTE - The present invention provides polymer electrolyte that has the ion-exchange capacity of 1.7 meq/g or more and has the reduced viscosity of 160 mL/g or more at 40° C. when being made to be 1% by weight solution with at least one kind of solvent selected from the group consisting of N,N-dimethylformamide, N-methyl-2-pyrrolidone, dimethyl sulfoxide, N,N-dimethylacetamide, sulfolane, and γ-butyrolactone, and polymer electrolyte that has the ion-exchange capacity of 1.7 meq/g or more and the reduced viscosity of 160 mL/g or more at 40° C. when being made to be 1% by weight solution with at least one kind of solvent selected from the group consisting of N,N-dimethylformamide, N-methyl-2-pyrrolidone, and dimethyl sulfoxide. | 05-07-2009 |
20090117439 | ELECTROLYTE MEMBRANE FOR FUEL CELL - An electrolyte membrane for a fuel cell includes: a proton conductive material in which hollow inorganic fine particles having through-holes on the surface of the hollow inorganic fine particles, are filled with an electrolyte resin; and a non-proton conductive polymer. | 05-07-2009 |
20090117440 | BENZOXAZINE-BASED MONOMER, POLYMER THEREOF, ELECTRODE FOR FUEL CELL INCLUDING THE POLYMER, ELECTROLYTE MEMBRANE FOR FUEL CELL INCLUDING THE POLYMER, AND FUEL CELL USING THE ELECTRODE - A benzoxazine-based monomer includes a halogen atom-containing functional group and a nitrogen-containing heterocyclic group. A polymer formed from the benzoxazine-based monomer may be used in an electrode for a fuel cell and electrolyte membrane for a fuel cell. | 05-07-2009 |
20090123804 | Polymer Electrolyte Membrane For Solid Polymer Fuel Cell, Membrane-Electrode Assembly And Fuel Cell - This invention relates to a polymer electrolyte membrane for polymer electrolyte fuel cells, comprising a block copolymer which comprises, as its constituents, a polymer block (A) having as a main unit an aromatic vinyl compound unit whose α-carbon is quaternary carbon, and a flexible polymer block (B), and has ion-conducting groups on the polymer block (A). | 05-14-2009 |
20090123805 | NAPHTHOXAZINE BENZOXAZINE-BASED MONOMER, POLYMER THEREOF, ELECTRODE FOR FUEL CELL INCLUDING THE POLYMER, ELECTROLYTE MEMBRANE FOR FUEL CELL INCLUDING THE POLYMER, AND FUEL CELL USING THE ELECTRODE - A naphthoxazine benzoxazine-based monomer is represented by Formula 1 below: | 05-14-2009 |
20090130525 | SOLID ELECTROLYTE MULTILAYER MEMBRANE, METHOD AND APPARATUS FOR PRODUCING THE SAME, MEMBRANE ELECTRODE ASSEMBLY, AND FUEL CELL - First, second and third dopes | 05-21-2009 |
20090130526 | ELECTRODE ELECTROLYTE FOR USE IN SOLID POLYMER FUEL CELL - This invention provides an electrode electrolyte for a solid polymer-type fuel cell, in which a cost problem and a problem related to recovery of catalyst metals are solved, having excellent proton conductivity, dimensional stability and heat resistance. | 05-21-2009 |
20090130527 | PLANAR FUEL CELL HAVING CATALYST LAYER WITH IMPROVED CONDUCTIVITY - The performance of solid polymer electrolyte fuel cells having planar architecture is improved by increasing the electrical conductivity in at least one of the catalyst layers. The conductivity is increased by incorporating a highly electrically conductive additive selected from the group consisting of graphite, carbon nanotubes, and corrosion tolerant metals. | 05-21-2009 |
20090136817 | ARYLENE FLUORINATED SULFONIMIDE POLYMERS AND MEMBRANES - Aromatic sulfonimide ionene polymers useful as membranes in electrochemical cells are prepared. | 05-28-2009 |
20090136818 | Proton Conducting Polymer membrane, Method for Production Thereof and Fuel Cell Therewith - There are provided a novel proton-conducting polymer membrane that shows good workability in a fuel cell assembling process and good proton conductivity and durability even under high-temperature, non-humidified conditions, a method for production thereof, and a fuel cell therewith. The proton-conducting polymer membrane includes: a polymer membrane containing a polybenzimidazole compound having a sulfonic acid group and/or a phosphonic acid group; and vinylphosphonic acid contained in the polymer membrane. The fuel cell uses the proton-conducting polymer membrane. The polybenzimidazole compound preferably includes a sulfonic and/or phosphonic acid group-containing component represented by Structural Formula (1): | 05-28-2009 |
20090136819 | Fuel Cell-Purpose Electrolyte Material and Production Method Therefor - A fuel cell-purpose electrolyte material having a structural unit represented by a general formula (1): | 05-28-2009 |
20090136820 | PROTON EXCHANGE MEMBRANE AND MEMBRANE-ELECTRODE ASSEMBLY (MEA), METHOD FOR THEIR PRODUCTION AND FUEL CELL USING SAID MEMBRANE OR ASSEMBLY - A proton exchange membrane for electrolyte cells includes a polyelectrolyte polymer membrane comprising a sulfonated copolymer based on the following formula (I): | 05-28-2009 |
20090136821 | Electrolyte supported cell designed for longer life and higher power - A solid oxide fuel cell (SOFC) includes a cathode electrode, an anode electrode, and a solid oxide electrolyte located between the anode electrode and the cathode electrode. The cathode electrode is a porous ceramic layer infiltrated with a cathode catalyst material, and the anode electrode is a porous ceramic layer infiltrated with an anode catalyst material, and the electrolyte is a ceramic layer having a lower porosity than the anode and the cathode electrodes. A ceramic reinforcing region may be located adjacent to the riser opening in the electrolyte. | 05-28-2009 |
20090142642 | Cathode structures for solid oxide fuel cells - Cathode structures for low temperature solid oxide fuel cells are provided. The cathode structures include thin dense mixed ionic electronic conducting (MIEC) films. MIEC materials include materials with perovskite structures, such as LSCF. The thickness of the MIEC film is determined by minimizing the sum of the electronic and ionic resistances. Specific functions for the electronic and ionic resistances in terms of device and physical parameters are also provided. Pulsed laser deposition is used for the fabrication of the MIEC film and the electrolyte layer. | 06-04-2009 |
20090148742 | High performance multilayer electrodes for use in reducing gases - Electrode materials systems for planar solid oxide fuel cells with high electrochemical performance including anode materials that provide exceptional long-term durability when used in reducing gases and cathode materials that provide exceptional long-term durability when used in oxygen-containing gases. The anode materials may comprise a cermet in which the metal component is a cobalt-nickel alloy. These anode materials provide exceptional long-term durability when used in reducing gases, e.g., in SOFCs with sulfur contaminated fuels. The cermet also may comprise a mixed-conducting ceria-based electrolyte material. The anode may have a bi-layer structure. A cerium oxide-based interfacial layer with mixed electronic and ionic conduction may be provided at the electrolyte/anode interface. | 06-11-2009 |
20090148743 | High performance multilayer electrodes for use in oxygen-containing gases - Electrode materials systems for planar solid oxide fuel cells with high electrochemical performance including anode materials that provide exceptional long-term durability when used in reducing gases and cathode materials that provide exceptional long-term durability when used in oxygen-containing gases. The cathode materials comprise zinc-doped lanthanum strontium ferrite (LSZF) or an alternative ferrite, cobaltite or nickelate ceramic electrode material. The cathode material also may comprise a mixed-conducting ceria-based electrolyte material, a palladium dopant, or a combination of these. The cathode may have a bi-layer structure. A ceramic-based interfacial layer may be provided at the electrolyte/cathode interface. The multilayer cathode system and its palladium doped cathode material exhibit a high degree of tolerance to chromium contamination during operation with metallic interconnect materials. | 06-11-2009 |
20090148744 | Fuel cell polymer electrolyte membrane - Crosslinked sulfonated triblock copolymers exhibit lower methanol permeability and good physical strength relative to the perfluorinated proton conductive membranes typically used in Direct Methanol Fuel Cells. Examples of triblock copolymers that can be used as fuel cell membranes include SEBS, SIBS, and SEPS. The chemically cross-linked and sulfonated SIBS, SEBS, and SEPS exhibit lower swelling and tolerate higher sulfonation levels than the un-cross-linked counterparts. These copolymers are easily sulfonated using known procedures and can be manufactured at a fraction of the cost of the typical perfluorinated proton conductive membranes. | 06-11-2009 |
20090155662 | Highly Stable Fuel Cell Membranes and Methods of Making Them - A solid polymer electrolyte membrane having (a) an ion exchange material and (b) dispersed in said ion exchange material, a hydrogen peroxide decomposition catalyst bound to a carbon particle support, wherein the hydrogen peroxide decomposition catalyst comprises (i) polyvinylphosphonic acid and (ii) cerium. | 06-18-2009 |
20090162723 | Integrated Single-Chamber Solid Oxide Fuel Cells - A single-chamber solid oxide fuel cell (SC-SOFC) system includes an electrolyte having a first surface and a second surface, a plurality of cell units on the first surface of the electrolyte, and a plurality of interconnects electrically connecting the plurality of the cell units. Each of the cell units includes an elongate anode current collector, a plurality of spaced apart anodes connected to a side of the anode current collector, an elongate cathode current collector, a plurality of spaced apart cathodes connected to a side of the cathode current collector. The plurality of cathodes and anodes are substantially in parallel and are interdigitated, forming a plurality of anode-cathode pairs. A plurality of barriers are positioned between adjacent anodes and cathodes. A method of producing the SC-SOFC system is also provided. | 06-25-2009 |
20090162724 | ION CONDUCTING COPOLYMERS WITH ELASTOMERIC AND POLYARYLENE SEGMENTS - Ion conducting polymers containing polyarylene ion conducting segments and elastomeric segments covalently linked to each other are used to make polymer electrolyte membranes that can be used in fuel cells such as direct methanol fuel cells. | 06-25-2009 |
20090162725 | MEMBRANE/ELECTRODE ASSEMBLY FOR POLYMER ELECTROLYTE FUEL CELL AND PROCESS FOR PRODUCING MEMBRANE/ELECTRODE ASSEMBLY FOR POLYMER ELECTROLYTE FUEL CELL - To provide a membrane/electrode assembly for a polymer electrolyte fuel cell which has a high power generation performance in an environment ranging from a low humidity to a high humidity and is scarcely susceptible to deterioration in the performance of the electrode even when fuel becomes deficient. | 06-25-2009 |
20090169952 | Direct organic fuel cell proton exchange membrane and method of manufacturing the same - A proton exchange membrane well-suited for use in a direct methanol fuel cell. According to one embodiment, the proton exchange membrane is prepared by a process comprising the steps of (a) providing a perfluorocarbon membrane, the perfluorocarbon membrane being non-permeable to water; (b) imbibing the perfluorocarbon membrane with a solution containing a styrene monomer, a divinyl benzene cross-linker, and a benzoyl peroxide activator; (c) heating the imbibed membrane to yield a cross-linked polymer within the membrane; (d) repeating the combination of steps (b) and (c) at least once; and (e) then, sulfonating the cross-linked polymer. According to another embodiment, the membrane is irradiated prior to the imbibing step, thereby rendering the membrane receptive to imbibing, polymerization, crosslinking, and grafting and obviating the need for more than one cycle of steps (b) and (c), as well as permitting step (c) to be performed at a lower temperature. | 07-02-2009 |
20090169953 | Electrochemical Cell and Method for Producing Electrochemical Cell - An electrochemical cell including a proton conductor as an electrolyte with superior stability, particularly against gases containing carbon dioxide, is provided. | 07-02-2009 |
20090169954 | Electrolyte Membrane and Fuel Cell Using the Same - Provided is an electrolyte membrane that exhibits a high ion conductivity even under high-temperature and non-humidified conditions. This electrolyte membrane includes: a composite oxoacid solid including at least two kinds of oxoacid groups, hydrogen, and at least one element selected from the group consisting of Mg, Ca, Sr and Ba; and a reinforcing material that is included in the solid and improves the mechanical property of the solid. The reinforcing material is made of a polymer material or an inorganic material. | 07-02-2009 |
20090169955 | MEMBRANE FOR FUEL CELLS, CONTAINING POLYMERS COMPRISING PHOSPHONIC ACID GROUPS AND/OR SULFONIC ACID GROUPS, MEMBRANE UNITS AND THE USE THEREOF IN FUEL CELLS - Membrane for fuel cells, containing polymers comprising phosphonic acid and/or sulphonic acid groups, membrane electrode assemblies and the use thereof in fuel cells | 07-02-2009 |
20090169956 | SOLID PROTON CONDUCTOR AND FUEL CELL INCLUDING THE SAME - Provided are a solid proton conductor and a fuel cell including the solid proton conductor. The solid proton conductor includes a polymer providing a proton source, and a polymer solvent providing a proton path. | 07-02-2009 |
20090169957 | POROUS MATERIAL FOR FUEL CELL ELECTROLYTE MEMBRANE, METHOD FOR PRODUCING THE SAME, ELECTROLYTE MEMBRANE FOR SOLID POLYMER FUEL CELL, MEMBRANE ELECTRODE ASSEMBLY (MEA), AND FUEL CELL - According to the present invention, a porous material for a fuel cell electrolyte membrane, wherein at least one strength auxiliary layer is provided inside and/or on the surface of a high porosity layer, the high porosity layer and the strength auxiliary layer constitute a multilayer structure, and the average diameter of pores of the high porosity layer is different from the average diameter of pores of the strength auxiliary layer, is provided. Also, a porous material having high porosity and high strength, which is suitable as a base material for an electrolyte membrane of a solid polymer fuel cell, is provided and a high-performance fuel cell using such material is realized. | 07-02-2009 |
20090169958 | Ceramic interconnect for fuel cell stacks - A fuel cell comprises a plurality of sub-cells, each sub-cell including a first electrode in fluid communication with a source of oxygen gas, a second electrode in fluid communication with a source of a fuel gas, and a solid electrolyte between the first electrode and the second electrode. The sub-cells are connected with each other with an interconnect. The interconnect includes a first layer in contact with the first electrode of each cell, and a second layer in contact with the second electrode of each cell. The first layer includes a (La,Mn)Sr-titanate based perovskite represented by the empirical formula of La | 07-02-2009 |
20090169959 | DURABLE FUEL CELL MEMBRANE ELECTRODE ASSEMBLY WITH COMBINED ADDITIVES - A fuel cell membrane electrode assembly is provided comprising a polymer electrolyte membrane comprising a first polymer electrolyte and at least one manganese compound; and one or more electrode layers comprising a catalyst and at least one cerium compound. The membrane electrode assembly demonstrates an unexpected combination of durability and performance. | 07-02-2009 |
20090176141 | Multilayered composite proton exchange membrane and a process for manufacturing the same - A multilayered membrane for use with fuel cells and related applications. The multilayered membrane includes a carrier film, at least one layer of an undoped conductive polymer electrolyte material applied onto the carrier film, and at least one layer of a conductive polymer electrolyte material applied onto the adjacent layer of polymer electrolyte material. Each layer of conductive polymer electrolyte material is doped with a plurality of nanoparticles. Each layer of undoped electrolyte material and doped electrolyte material may be applied in an alternating configuration, or alternatively, adjacent layers of doped conductive polymer electrolyte material is employed. The process for producing a multilayered composite membrane includes providing a carrier substrate and solution casting a layer of undoped conductive polymer electrolyte material and a layer of conductive polymer electrolyte material doped with nanoparticles in an alternating arrangement or in an arrangement where doped layers are adjacent to one another. | 07-09-2009 |
20090186249 | Titanate and metal interconnects for solid oxide fuels cells - A solid oxide fuel cell (SOFC) includes a plurality of sub-cells. Each sub-cell includes a first electrode in fluid communication with a source of oxygen gas, a second electrode in fluid communication with a source of a fuel gas, and a solid electrolyte between the first electrode and the second electrode. The SOFC further includes an interconnect between the sub-cells. In one embodiment, the SOFC has a first surface in contact with the first electrode of each sub-cell and a second surface that is in contact with the second electrode of each sub-cell; and the interconnect consists essentially of a doped M-titanate based perovskite, wherein M is an alkaline earth metal. In another embodiment, the interconnect includes a first layer in contact with the first electrode of each sub-cell, and a second layer in contact with the second electrode of each sub-cell. The first layer includes an electrically conductive material selected from the group consisting of an metal, a metal alloy and a mixture thereof. The second layer includes a doped M-titanate based perovskite, wherein M is an alkaline earth metal. A solid oxide fuel cell described above is formed by connecting each of the sub-cells with an interconnect described above. | 07-23-2009 |
20090186250 | Bilayer interconnects for solid oxide fuel cells - A solid oxide fuel cell (SOFC) includes a plurality of sub-cells. Each sub-cell includes a first electrode in fluid communication with a source of oxygen gas, a second electrode in fluid communication with a source of a fuel gas, and a solid electrolyte between the first electrode and the second electrode. The SOFC further includes an interconnect between the sub-cells. The interconnect includes a first layer in contact with the first electrode of each sub-cell, and a second layer in contact with the second electrode of each sub-cell. The first layer includes at least one material selected from the group consisting of a doped M-ferrite based perovskite, a doped M′-ferrite based perovskite, a doped MM′-ferrite based perovskite and a doped M′-chromite based perovskite, wherein M is an alkaline earth metal and M′ is a rare earth metal. The second layer includes a doped M″-titanate based perovskite, wherein M″ is an alkaline earth metal. A solid oxide fuel cell having a plurality of cells as described above is formed by connecting each of a plurality of sub-cells with an interconnect as described above. | 07-23-2009 |
20090186251 | MEMBRANE ELECTRODE ASSEMBLY HAVING LOW SURFACE IONOMER CONCENTRATION - A membrane electrode assembly (MEA) comprises a polymer electrolyte membrane having at least one electrode layer on each of the opposing sides of the membrane. The electrode layer comprises a catalyst, an electrically conductive particulate material and an ionomer binder. The ionomer binder concentration on the exterior surface of the MEA is lower than the ionomer binder concentration near the electrode membrane interface. The electrode layer is formed by casting and drying a solvent ink layer between a nonporous release surface and a porous releasable decal. | 07-23-2009 |
20090186252 | ORGANIC-INORGANIC COMPOSITE POLYMER ELECTROLYTE MEMBRANE FOR FUEL CELLS AND ITS PREPARATION METHOD - The present invention relates to a preparing process an organic-inorganic composite polymer membrane for fuel cell by using sol-gel process. At this time, it is characterized in that when a sulfonated hydrocarbons polymer having ion conductivity is cast with film shape, sol-gel process which enables to distribute an inorganic matter having an excellent cation exchange and moisture holding capacity homogeneously is used. With homogeneous introduction of an inorganic matter into a polymer matrix by sol-gel process according to the present invention, it is possible to improve a phenomenon that an inorganic matter is partially concentrated at some position, thereby enabling to obtain an ion conducting organic-inorganic composite polymer membrane having an excellent ion conductivity. | 07-23-2009 |
20090191442 | Electrolyte, production process therefor, electrolyte membrane, production process therefor, catalyst layer and fuel cell - An electrolyte having a structure where a fluorinated hydrophilic segment A represented by -E | 07-30-2009 |
20090197137 | MEMBRANE ELECTRODE ASSEMBLY FOR FUEL CELL, METHOD OF MANUFACTURING THE SAME, AND FUEL CELL INCLUDING THE MEMBRANE ELECTRODE ASSEMBLY - A membrane electrode assembly for a fuel cell, includes: an electrolyte membrane, and cathode and anode that are respectively disposed on opposing surfaces of the electrolyte membrane, wherein the anode comprises an anode catalyst layer, an anode micro-porous layer and an anode diffusion support that are sequentially disposed on one surface of the electrolyte membrane, wherein the thickness ratio of the anode catalyst layer to the anode micro-porous layer is in a range of 1:0.82 to 1:3.28, and the thickness ratio of the anode catalyst layer to the anode diffusion support is in a range of 1:5 to 1:7.05. | 08-06-2009 |
20090197138 | Highly Conducting Solid State Ionics for Electrochemical Systems and Methods of Fabricating Them Using Layer-by-Layer Technology - Herein are disclosed methods, and compositions produced using them, to assemble highly conducting, hydrolytically stable polymer electrolyte films from commercially-available, water-soluble polymers using layer-by-layer assembly technology. In certain embodiments, these films can be used for electrochemical device applications which require an ion-conducting material to operate. For example, the power efficiency of any electrochemical device with a solid polymer electrolyte layer can be increased by this technology by virtue of the low ionic resistance of these layer-by-layer assembled thin film electrolytes. Specifically, direct-methanol operated fuel cells (DMFCs) should benefit remarkably, as the described technology offers very high conductivity values at fully hydrated conditions with low fuel (methanol) crossover. | 08-06-2009 |
20090197139 | ION CONDUCTIVE FILM AND FUEL CELL USING THE SAME - Disclosed is an ion conductive film containing a composite body between an ion conductive polymer and a nitrogen-containing compound. The nitrogen-containing compound has an immobilized portion to the ion conductive polymer and exhibits an enantiomeric isomer structure when protonated. Alternatively, the nitrogen-containing compound is capable of assuming a chemical structure in which the multiple bond represented by the double bound is moved, with the atoms constituting the molecule not changing their positions. | 08-06-2009 |
20090202888 | Polymer electrolyte emulsion and use thereof - A polymer electrolyte emulsion wherein a polymer electrolyte particle is dispersed in a dispersing medium, wherein a polymer electrolyte contained in the polymer electrolyte particle is a block copolymer consisting of a segment having an acidic group and a segment without substantially ion exchange group, is provided. | 08-13-2009 |
20090208806 | METHOD FOR PRODUCING POLYMER ELECTROLYTE MOLDED ARTICLE, POLYMER ELECTROLYTE MATERIAL, POLYMER ELECTROLYTE MEMBRANE, AND POLYMER ELECTROLYTE FUEL CELL - The present invention relates to a method for producing a polymer electrolyte molded article, which comprises forming a polymer electrolyte precursor having a protective group and an ionic group, and deprotecting at least a portion of protective groups contained in the resulting molded article to obtain a polymer electrolyte molded article. According to the present invention, it is possible to obtain a polymer electrolyte material and a polymer electrolyte molded article, which are excellent in proton conductivity and are also excellent in fuel barrier properties, mechanical strength, physical durability, resistance to hot water, resistance to hot methanol, processability and chemical stability. A polymer electrolyte fuel cell using a polymer electrolyte membrane, polymer electrolyte parts or a membrane electrode assembly can achieve high output, high energy density and long-term durability. | 08-20-2009 |
20090208807 | SOLID ELECTROLYTE MEMBRANE, METHOD AND APPARATUS FOR PRODUCING THE SAME, MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELL | 08-20-2009 |
20090208808 | Diaphragm for Direct-Liquid Fuel Cell and Process for Producing the Same - The present invention discloses a membrane for direct-liquid fuel cell, comprised of a layered cation-exchange membrane whose one side is constituted by A) a cation-exchange membrane layer of low water content type having a water content of 1 to 15% by mass at a relative humidity of 50% RH (25° C.) and whose other side is constituted by B) a cation-exchange membrane layer of high water content type having, at a relative humidity of 100% RH (25° C.), a water content which is higher, by 3% by mass ore more, than the water content of the cation-exchange membrane layer of low water content type at a relative humidity of 100% RH (25° C.), the layered cation-exchange membrane having an electrical resistance of 0.5 to 0.01 Ω·cm | 08-20-2009 |
20090208809 | POLYMER ELECTROLYTES INCLUDING HETEROPOLYACIDS - This disclosure provides polymer electrolytes, polymer electrolyte membranes (PEM's) and membrane electrode assemblies (MEA's) such as may be useful in fuel cells which contain or comprise polyoxometalates (POM's) or heteropolyacids (HPA's). In some embodiments the polyoxometalate, it's counterions or both may comprise Mn and/or Ce. In some embodiments the polymer electrolyte is fluorinated. In some embodiments the polymer electrolyte comprises a second acidic functional group other than a polyoxometalate. In another aspect, the present disclosure provides methods of making polymer electrolytes including methods which comprising a step of copolymerizing monomers comprising a covalently bound polyoxometalates and methods which comprise a step of covalently attaching a polyoxometalate to the polymer. | 08-20-2009 |
20090208810 | Process for producing polymer electrolyte emulsion - A process for producing a polymer electrolyte emulsion having the following steps (1) and (2) is provided.
| 08-20-2009 |
20090214920 | Proton-conducting membrane and use thereof - The present invention relates to a novel proton-conducting polymer membrane based on polyazoles which can, owing to its excellent chemical and thermal properties, be used for a variety of purposes and is particularly suitable as a polymer-electrolyte membrane (PEM) for the production of membrane electrode units for so-called PEM fuel cells. | 08-27-2009 |
20090214921 | Proton-conducting membrane and use thereof - The present invention relates to a novel proton-conducting polymer membrane based on polyazoles which can, owing to its excellent chemical and thermal properties, be used for a variety of purposes and is particularly suitable as a polymer-electrolyte membrane (PEM) for the production of membrane electrode units for so-called PEM fuel cells. | 08-27-2009 |
20090214922 | FUEL CELL - A solid state fuel cell comprising a non-polymeric electrolyte, the fuel cell comprising a member having a porous region, the member comprising metallic titanium or an alloy thereof. Preferably, the fuel cell is a solid oxide fuel cell or a protonic ceramic fuel cell. The porous region may be bounded by a non-porous region. The titanium-containing member may be coated with layers of ceramic materials. | 08-27-2009 |
20090214923 | CERAMIC PRODUCT AND CERAMIC MEMBER BONDING METHOD - The ceramic product provided by the present invention is provided with at least two ceramic members bonded to each other, and the bond parts between these ceramic members bonded to each other are formed from glass having leucite crystals precipitated within the glass matrix. | 08-27-2009 |
20090214924 | ELECTROLYTE MEMBRANE, PROCESS FOR ITS PRODUCTION AND MEMBRANE-ELECTRODE ASSEMBLY FOR POLYMER ELECTROLYTE FUEL CELLS - To provide an electrolyte membrane having high strength even if it is thin in the thickness, excellent dimensional stability even upon absorption of water and a low electrical resistance; a process for producing the electrolyte membrane; and a membrane-electrode assembly for polymer electrolyte fuel cells having a high output and excellent durability, having the electrolyte membrane. | 08-27-2009 |
20090220839 | Proton conductor - The present invention provides a proton conductor, which can be used as a electrolyte of fuel cells and the like, and is a compatibilized material made of an ionic liquid and a polymer. The present invention is a proton conductor consisting of a compatibilized material made of a salt of Brönsted base and Brönsted acid, wherein said salt has at least one heteroatom accompanied with protons, and a polymer, wherein said polymer is produced by copolymerizing a vinyl compound, a divinyl compound and a maleimide compound and said maleimide compound is represented by the chemical formula 1 below: | 09-03-2009 |
20090220840 | PROTON CONDUCTIVE HYBRID MATERIAL, AND CATALYST LAYER FOR FUEL CELL USING THE SAME - This invention provides an organic-inorganic hybrid material, which can exhibit high proton conductivity in a wide temperature range of a low temperature to a high temperature, a proton conductive material, which has a small particle diameter, that is, has a particle diameter capable of reaching pores of primary particles of carbon powder or the like, and has controlled particle diameters, a catalyst layer containing these materials for a fuel cell and an electrolyte film containing these materials for a fuel cell, and a fuel cell. The proton conductive hybrid material comprises proton conductive inorganic nanoparticles and a proton conductive polymer, wherein the Stokes particle diameter of the proton conductive hybrid material by dynamic light scattering is not more than 20 nm. | 09-03-2009 |
20090220841 | Membrane ELectrode Assembly Having Layer for Trapping Catalyst and Fuel Cell Employed With The Same - Disclosed herein are a membrane electrode assembly (MEA) for fuel cells, wherein the membrane electrode assembly has a porous membrane (a catalyst trapping layer) disposed at the opposite surface of a catalyst layer facing a polymer electrolyte membrane for preventing the loss of a catalyst, and a fuel cell including the same. The membrane electrode assembly has the effect of restraining the loss of the catalyst due to a liquid component, such as methanol, thereby improving the operating efficiency of the fuel cell. Especially, the membrane electrode assembly has the effect of minimizing the reduction in performance of the fuel cell due to the loss of the catalyst during the long-term operation. | 09-03-2009 |
20090220842 | Fuel Cell and Polymer Electrolyte Membrane - A fuel cell includes: (a) an anode; (b) a cathode; and (c) a polymer electrolyte membrane including at least one polyolefin, the polyolefin being obtained by grafting side chains containing proton conductive functional groups onto a polyolefin having a crystallinity of 41% to 48%, preferably 42% to 46%. According to one preferred embodiment, the fuel cell is a direct methanol fuel cell. | 09-03-2009 |
20090220843 | PHOSPHONIC ACID-CONTAINING BLENDS AND PHOSPHONIC ACID-CONTAINING POLYMERS - The invention relates to blends and blend membranes from low-molecular hydroxymethylene-oligo-phosphonic acids R—C(PO | 09-03-2009 |
20090220844 | Electrolyte Membrane and Solid Polymer Fuel Cell - An electrolyte membrane for a solid polymer fuel cell according to the present invention is a laminated body of ( | 09-03-2009 |
20090220845 | Electrochemical device comprising composite bipolar plate and method of using the same - An electrochemical device and methods of using the same. In one embodiment, the electrochemical device may be used as a fuel cell and/or as an electrolyzer and includes a membrane electrode assembly (MEA), an anodic gas diffusion medium in contact with the anode of the MEA, a cathodic gas diffusion medium in contact with the cathode, a first bipolar plate in contact with the anodic gas diffusion medium, and a second bipolar plate in contact with the cathodic gas diffusion medium. Each of the bipolar plates includes an electrically-conductive, chemically-inert, non-porous, liquid-permeable, substantially gas-impermeable membrane in contact with its respective gas diffusion medium, as well as a fluid chamber and a non-porous an electrically-conductive plate. | 09-03-2009 |
20090220846 | PROTON CONDUCTOR, AND FUEL CELL AND FUEL CELL SYSTEM INCLUDING PROTON CONDUCTOR - A proton conductor includes a water-soluble electrolyte membrane with proton conductivity and a proton-conductive ceramic that is provided on at least one surface of the water-soluble electrolyte membrane. | 09-03-2009 |
20090233142 | POLYMER HAVING OXOCARBON GROUP, AND USE THEREOF - Disclosed is a polymer having an oxocarbon group represented by the general formula (1). This polymer having an oxocarbon group is useful as a polymer electrolyte as the material for proton conductive membranes in solid polymer fuel cells which use a gas fuel such as a hydrogen gas or a liquid fuel such as methanol or dimethyl ether. | 09-17-2009 |
20090233143 | Membrane Electrode Assembly, Process for Producing Same, and Direct Methanol Fuel Cell - To provide an inexpensive fuel cell membrane electrode assembly that is suitable for a direct methanol fuel cell, and for which the adhesion between an electrode and a fuel cell electrolyte membrane formed from a non-fluorine polymer material is improved, a polymer electrolyte added to the electrode can cope sufficiently with a high concentration of methanol, the advantages of the electrolyte membrane can be sufficiently exhibited, peeling apart of the electrode and the membrane does not occur while running as a fuel cell, and the productivity is high. | 09-17-2009 |
20090233144 | Polymer Electrolyte membrane with coating layer of anion binding agent and fuel cell using same - The present invention relates to a multi-layered polymer electrolyte membrane for a fuel cell, which is prepared by introducing an anion binding substance as a coating layer to a non-aqueous polymer electrolyte membrane for preventing the elution of acid, and a fuel cell comprising the membrane. In particular, the present invention discloses a multi-layered polymer electrolyte membrane prepared by coating an anion binding substance on a non-aqueous polymer electrolyte membrane, and a fuel cell comprising the membrane, thereby preventing the elution of acid and maintaining the performance of a fuel cell to economic and environmental profit. | 09-17-2009 |
20090233145 | Manufacturing Method for Electrolyte Membrane, Electrolyte Membrane, and Fuel Cell - This manufacturing method for an electrolyte membrane includes a mixing step of obtaining a resin composition by mixing a polyvinylsulfonic acid resin, a polyethylene resin, and an amine-based surfactant in a solvent, and a formation step of forming the resin composition as the electrolyte membrane. | 09-17-2009 |
20090233146 | SULFONATED POLY(ARYLENE ETHER) HAVING CROSSLINKABLE MOIETY COMBINED IN CHAIN OF POLYMER, SULFONATED POLY(ARYLENE ETHER) HAVING CROSSLINKABLE MOIETIES COMBINED IN POLYMER AND AT POLYMER END GROUP, AND POLYMER ELECTROLYTE MEMBRANE USING SULFONATED POLY(ARYLENE ETHER) - A sulfonated poly(arylene ether) copolymer that has a crosslinking structure in a chain of a polymer, a sulfonated poly(arylene ether) copolymer that has a crosslinking structure in and at an end of a chain of a polymer, and a polymer electrolyte film that is formed by using them are disclosed. According to the polycondensation reaction of the sulfonated dihydroxy monomer (HO—SAr1-OH), the none sulfonated dihydroxy monomer (HO—Ar—OH), the crosslinkable dihalide monomer (X—CM-X) and the none sulfonated dihalide monomer (X—Ar—X), the poly(arylene ether) copolymer in which the sulfonic acid is included is synthesized. The formed poly(arylene ether) copolymer has the crosslinkable structure in the chain of the polymer. In addition, by carrying out the polycondensation reaction in respects to the crosslinkable monohydroxy monomer or the crosslinkable monohalide monomer, the crosslinking can be formed at the end of the polymer. Through this, the thermal stability, the mechanical stability, the chemical stability, the film formation ability and the like is the same as or better than those of the Nafion film that is currently commercialized and is used as the polymer electrolyte film, and the proton conductivity and the cell performance are excessively improved. In addition, even though it is exposed to the moisture over a long period of time, since there is no change in the property of the electrolyte film, the dimensional stability is high. | 09-17-2009 |
20090233147 | FUEL CELL STACK - A fuel cell stack in which at least one of a plurality of fuel cell units constituting a fuel cell stack includes a water absorbing member with a surface exposed to the atmosphere in a portion where an oxidizer flow path forming member and a separator are in contact with each other, and an area of a surface exposed to the atmosphere of the water absorbing member of the fuel cell unit the temperature of which becomes relatively lower is larger than an area of a surface exposed to the atmosphere of the water absorbing member of the fuel cell unit the temperature of which becomes relatively higher. | 09-17-2009 |
20090233148 | METHOD FOR PREPARING MEMBRANE ELECTRODE ASSEMBLY USING LOW-TEMPERATURE TRANSFER METHOD, MEMBRANE ELECTRODE ASSEMBLY PREPARED THEREBY, AND FUEL CELL USING THE SAME - A membrane-electrode assembly (MEA) is prepared by a low-temperature transfer method. A binder-free carbon layer is formed on a transfer substrate so as to avoid decreased performance due to the formation of a skin layer caused by the interfacial segregation of the ionomer or binder. | 09-17-2009 |
20090239122 | GLASS AND GLASS-CERAMIC SEALANT COMPOSITIONS - A glass ceramic material sealed fuel cell device, including a first fuel cell portion and a sealant layer bonded to the first cell portion. The sealant layer includes at least three metal oxides RO-M | 09-24-2009 |
20090239123 | ELECTROLYTE MEMBRANE FOR POLYMER ELECTROLYTE FUEL CELLS, PROCESS FOR ITS PRODUCTION AND MEMBRANE-ELECTRODE ASSEMBLY FOR POLYMER ELECTROLYTE FUEL CELLS - To provide an electrolyte membrane having excellent dimensional stability even upon absorption of water, a high proton conductance and high power generation performance; and a process for producing the electrolyte membrane with a high productivity. | 09-24-2009 |
20090239124 | Polyelectrolyte, Membrane Electrode Assembly, Fuel Cell, and Method for Producing Polyelectrolyte - The present invention readily provides an electrolyte which is capable of suppressing elution of a radical-quenching material from the electrolyte and has high proton conductivity and excellent durability. | 09-24-2009 |
20090239125 | SULFONATED POLYMER COMPOSITION FOR FORMING FUEL CELL ELECTRODES - A membrane electrode assembly for a fuel cell is described. The materials for the membrane electrode assembly are formed from sulfonated polymers. A polymer dispersion ink containing the sulfonated polymer and a mixture of solvents is used to form the electrodes on the exchange membrane. The dispersion ink allows for the electrodes to be formed directly on the exchange membrane without significantly dissolving the exchange membrane. | 09-24-2009 |
20090246591 | Chemically Stabilized Ionomers Containing Inorganic Fillers - Ionomeric polymers that are chemically stabilized and contain inorganic fillers are prepared, and show reduced degradation. The ionomers care useful in membranes and electrochemical cells. | 10-01-2009 |
20090246592 | MEMBRANE/ELECTRODE ASSEMBLY FOR POLYMER ELECTROLYTE FUEL CELLS AND POLYMER ELECTROLYTE FUEL CELL - To provide a membrane/electrode assembly for polymer electrolyte fuel cells, which is capable of providing high power generation performance even under a low humidity condition and has sufficient mechanical strength and dimensional stability, and which has an excellent durability even in an environment where moistening and drying are repeated, and a polymer electrolyte fuel cell which is capable of providing high power generation performance even under a low humidity condition. | 10-01-2009 |
20090246593 | MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELL - A membrane electrode assembly includes an electrolyte membrane, anode catalyst layers, and cathode catalyst layers provided counter to the anode catalyst layers, respectively. An insulating layer is provided on the electrolyte membrane between adjacent anode catalyst layers. An insulating layer is provided on the electrolyte membrane between adjacent cathode catalyst layers. The resistivity of the insulating layer is preferably identical to or higher than that of the electrolyte membrane. | 10-01-2009 |
20090253015 | POLYARYLENE BLOCK COPOLYMER AND USE THEREOF - Provided is a block copolymer comprising one or more segments having an acid group and one or more segments having substantially no acid group, wherein the segment having an acid group is represented by the following formula (1): | 10-08-2009 |
20090253016 | POROUS MEMBRANE, METHOD FOR PRODUCING POROUS MEMBRANE, SOLID POLYMER ELECTROLYTE MEMBRANE, AND FUEL CELL - It is intended to provide a porous membrane comprising a film or sheet made of a polymer or inorganic material, characterized by having a large number of pores of 0.1 to 100 μm in pore size formed by irradiation with an ultra-short pulse laser with a pulse width of 10 | 10-08-2009 |
20090253017 | FUEL CELL STACK - Solid oxide fuel cell stack obtainable by a process comprising the use of a glass sealant with composition 50-70 wt % SiO | 10-08-2009 |
20090258273 | ASSEMBLIES FOR ELECTROCHEMICAL DEVICES - MEA 7-layer assemblies with gasket, comprising:
| 10-15-2009 |
20090258274 | MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELLS OF INCREASED POWER - A membrane electrode assembly, comprising at least two electrochemically active electrodes which are separated by at least on polymer electrolyte membrane, wherein the polymer electrolyte membrane has reinforcing elements which penetrate the polymer electrolyte membrane at least partially. | 10-15-2009 |
20090258275 | POLYMER ELECTROLYTE, POLYMER ELECTROLYTE MEMBRANE, MEMBRANE ELECTRODE ASSEMBLY, AND FUEL CELL - Provided is a polymer electrolyte including a triblock copolymer having: a segment A which has a glass transition temperature of 40° C. or lower, and is ion conductive; and a segment B which has a glass transition temperature of 70° C. or higher, and is non-ion conductive, the segment A and the segment B being connected in a sequence of B-A-B, wherein a weight fraction W | 10-15-2009 |
20090269643 | PROTON-CONDUCTING POLYMER COMPOSITION AND METHOD FOR PREPARATION THEREOF, CATALYST INK CONTAINING SAID PROTON-CONDUCTING POLYMER COMPOSITION AND FUEL CELL INCLUDING SAID CATALYST INK - A proton-conducting polymer composition which contains an aromatic hydrocarbon type of proton-conducting polymer in an amount of 1 to 30 mass %, wherein a component of said proton-conducting polymer having a molecular weight in the range of 2,000 to 230,000 in terms of polyethylene glycol accounts for 10 mass % or more of the total amount of said proton-conducting polymer; a method for preparing the proton-conducting polymer composition, a catalyst ink comprising the proton-conducting polymer composition and a fuel cell including the catalyst ink. The above proton-conducting polymer composition can well exploit the performance capability of a catalyst of a fuel cell, especially when it is allowed to be present with the electrode of a fuel cell. | 10-29-2009 |
20090269644 | PROTON CONDUCTING MATERIALS - Materials are provided that may be useful as ionomers or polymer ionomers, including compounds including bis sulfonyl imide groups which may be highly fluorinated and may be polymers. | 10-29-2009 |
20090269645 | POLYMER, POLYMER ELECTROLYTE AND FUEL CELL USING THE SAME - Provided is a polymer having a structural unit expressed by the following general formula (1a): | 10-29-2009 |
20090269646 | ELECTROLYTE MEMBRANE, PRODUCTION METHOD THEREOF, AND FUEL CELL - An electrolyte membrane with high durability is provided. The electrolyte membrane includes a porous film containing a nitrogen-containing heterocyclic ring or a cyano group, and a proton conductive component existing in pores of the porous film, wherein the proton conductive component includes a polymer compound containing at least a nitrogen-containing heterocyclic ring, a cyano group, and an acidic group in one molecule. | 10-29-2009 |
20090274943 | CROSSLINKED POLYMER ELECTROLYTE AND METHOD FOR PRODUCING SAME - There are provided a new crosslinked polymer electrolyte excellent in water resistance and solvent resistance, high in heat resistance, inexpensive and low in methanol permeability, and suitable for the proton conductive membrane of a fuel cell, by means of the crosslinked polymer electrolyte obtained by the following (1) or (2), and its production method. | 11-05-2009 |
20090274944 | METHOD FOR PRODUCING POLYMER ELECTROLYTE MEMBRANE, POLYMER ELECTROLYTE MEMBRANE AND DIRECT METHANOL FUEL CELL - A method for producing a polymer electrolyte membrane of the present invention include the step of modifying a polymer electrolyte membrane which is salt-substituted with a polyvalent cation, by a modification treatment selected from a heat treatment, an active energy ray irradiation treatment and a discharge treatment, and preferably include the step of treating the modified polymer electrolyte with acid. This method allows a polymer electrolyte membrane capable of achieving methanol barrier properties and the proton conductivity at a high level. | 11-05-2009 |
20090280379 | Electrode binder solution composition for polymer electrolyte fuel cell - The present invention relates to an electrode binder solution composition for a polymer electrolyte fuel cell comprising a mixture of a solvent and a nonsolvent. The electrode binder solution composition can significantly improve electrode activity by maximizing formation of a three-phase interface of catalyst, binder and fuel at the electrode catalytic layer of the polymer electrolyte fuel cell. The present invention relates to a preparation method of an electrode binder solution for a polymer electrolyte fuel cell, the electrode binder solution for a polymer electrolyte fuel cell comprising a sulfonated proton exchange hydrocarbon-based polymer and a mixture of a solvent and a nonsolvent. The present invention also relates to a preparation method of an electrode catalyst slurry comprising the steps of: mixing an electrode binder solution composition for a polymer electrolyte fuel cell with a platinum catalyst and drying the mixture; and heat-treating the dried mixture to maximize interface between the electrode binder and the catalyst. | 11-12-2009 |
20090280380 | PROTON CONDUCTING MEMBRANE FOR A FUEL CELL OR A REACTOR BASED ON FUEL CELL TECHNOLOGY - A proton conducting membrane for a fuel cell or a reactor based on fuel cell technology, consisting of a thin glass plate that allows for migration of protons from one side of the membrane to the other. Such a membrane is not affected by reactants that are common in DMFC cells, and is not permeable to ions other than protons/hydroxonium ions, and it does not conduct electrons. The glass may be ordinary soda lime glass and may be doped with silver chloride. Furthermore, a catalyst that is essential for conducting one of an anodic reaction and a cathodic reaction in the fuel cell or the reactor can be fused in the glass surface on one side of the membrane, and the catalyst that is essential for conducting the other reaction can be fused in the glass surface on the other side of the membrane. | 11-12-2009 |
20090280381 | Diatomaceous Earth Proton Conductor - Diatomaceous earth (“DE”) proton conductors are disclosed for use as electrolytes in electrochemical applications, such as fuel cells, gas sensors, humidity sensors, and pH sensors. The DE proton conductors may be formed by, for example, cutting from diatomaceous crude, pressing diatomaceous powder into pellets, or any other suitable shape-forming methods. In electrochemical applications, the DE proton conductor may be used to separate a hydrogen anode from an oxygen cathode and may conduct protons generated at the hydrogen anode to the oxygen cathode. | 11-12-2009 |
20090280382 | COMPOSITE MEMBRANE - A composite membrane for fuel cell applications includes a support substrate with a predefined void volume. The void volume is at least partially filled with an ion conducting polymer composition. Characteristically, the ion conducting polymer composition includes a first polymer with a cyclobutyl moiety and a second polymer that is different than the first polymer. | 11-12-2009 |
20090280383 | BLENDED PEM'S WITH ELASTOMERS FOR IMPROVED MECHANICAL DURABILITY - A blend composition comprises a fluorine-containing polymer electrolyte and a fluoro-rubber. An electrolyte membrane may be prepared from the blend composition. The electrolyte membrane may be used in electrochemical cells such as electrolyzers, batteries and fuel cells. | 11-12-2009 |
20090280384 | Polymer and membrane-electrode assembly for fuel cell, and fuel cell system including the same - A polymer represented by the following Formula 1, and a membrane-electrode assembly and a fuel cell system including the polymer: | 11-12-2009 |
20090280385 | NOVEL PERFLUOROCARBON IONOMER MEMBRANE WITH HIGH PROTON CONDUCTIVITY AND PREPARATION THEREOF - The present invention provides a perfluorocarbon ionomer membrane with aligned fibril-like nanostructures and its preparation method. | 11-12-2009 |
20090286128 | SOLE POLYELECTROLYTE FILM AND PROCESS FOR PRODUCING SAME, AND FUEL CELL - In the present invention, a solid polyelectrolyte film is obtained by irradiating a dense fluorinated resin film having a thickness of 10 to 50 μm in an inert gas atmosphere with an electron beam having been accelerated at an accelerating voltage of 60 to 300 kV in vacuum and transmitted through an electron beam-transmitting window so that an absorbed dose is from 1 to 50 kGy, followed by graft-polymerizing a polymerizable monomer. Moreover, the solid polyelectrolyte film is disposed between a fuel electrode and an air electrode to form a fuel cell. | 11-19-2009 |
20090291348 | ELECTROLYTE MEMBRANE FOR FUEL CELL AND METHOD OF MANUFACTURING THE SAME, MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELL - The present invention provides an electrolyte membrane with high proton conductivity and low methanol permeability, a high output MEA and DMFC. The electrolyte membrane is characterized by comprising a metal oxide hydrate having proton conductivity and an organic polymer having proton conductivity. A preferable metal oxide hydrate is zirconium oxide hydrate or tungsten oxide hydrate. The composite electrolyte membrane has an ion exchange capacity of 0.75 to 1.67 meq/g as a preferable range. The composite electrolyte membrane constituted by the metal oxide hydrate and the organic polymer is provided with high proton conductivity and low methanol permeability so that MEA for DMFC with high output is provided. | 11-26-2009 |
20090297909 | PRODUCTION METHOD OF ELECTROLYTE MEMBRANE, ELECTROLYTE MEMBRANE AND SOLID POLYMER FUEL CELL USING SAME - Disclosed is an electrolyte membrane which enables a fuel cell to have a high maximum output when used therein since it has high proton conductivity and high hydrogen gas impermeability. Also disclosed are a method for producing such an electrolyte membrane, and a solid polymer fuel cell using such an electrolyte membrane. A method for producing an electrolyte membrane including a step for impregnating a porous base with a solution containing a sulfonic acid group-containing vinyl monomer and then polymerizing the monomer is characterized in that 80% by mole or more of vinyl sulfonic acid having purity of 90% or more, and/or a salt thereof is contained as the sulfonic acid group-containing vinyl monomer, and the concentration of the vinyl sulfonic acid and/or a salt thereof in the solution is set at 35% by weight or more. | 12-03-2009 |
20090297910 | Proton Exchange Membranes Based on Heterocycles and Acids Through An Organic-Inorganic Hybrid Process - Polymer electrolyte membranes (PEMs), methods and use thereof in fuel cells and methods of preparing thereof are disclosed. A PEM may include at least one porous support film and a polysiloxane polymer bonded to the at least one porous support film, wherein the polysiloxane polymer includes at least one polysiloxane grafted to a heterocycle. | 12-03-2009 |
20090297911 | POLYELECTROLYTE MEMBRANES AND METHODS FOR MAKING - A polymer electrolyte membrane includes a porous base membrane and electrolytes dispersed within the pores of the base membrane. The electrolytes include metal oxide compounds having acid functionality. A process for making the membrane is also provided. The membrane is compatible, durable, highly conductive, mechanically strong and dimensionally stable. | 12-03-2009 |
20090297912 | METAL PHOSPHATE - Provided is a metal phosphate showing high proton conductivity, which is useful for a fuel cell having higher output and produced at lower cost. The proton-conductive metal phosphate is a compound containing M, P and O,
| 12-03-2009 |
20090297913 | Nanostructure-Enhanced stereo-electrodes for fuel cells and biosensors - This application provides nanostructure-enhanced stereo-electrodes. The application also provides novel ways to manufacture nanostructure-enhanced electrodes. In some embodiments, the invention also provides methods of use for devices equipped with the nanostructure-enhanced stereo-electrodes. | 12-03-2009 |
20090297914 | Chemically modified fullerene, production method for the same, and proton conducting membrane including the same - The present invention provides chemically modified fullerene for a proton conducting membrane electrolyte, in which sulfonic acid group SO | 12-03-2009 |
20090297915 | ELECTROLYTE MEMBRANES AND METHODS OF USE - N-heterocyclic functionalized polymers and methods of use in fuel cells. Phenoxy-substituted polyphosphazenes and phosphazene trimers functionalized with azoles can provide polymer electrolyte membranes with high thermal stability coupled with a large number of proton binding sites per monomer unit. | 12-03-2009 |
20090297916 | FUEL CELL MEMBRANE ELECTRODE ASSEMBLY - Fuel cell membrane electrode assemblies and fuel cell polymer electrolyte membranes are provided comprising bound anionic functional groups and polyvalent cations, such as Mn or Ru cations, which demonstrate increased durability. Methods of making same are also provided. | 12-03-2009 |
20090305110 | ELECTROLYTE MEMBRANE-ELECTRODE MEMBRANE ASSEMBLY FOR SOLID POLYMER TYPE FUEL CELL AND PRODUCTION METHOD THEREOF, AND FUEL CELL EQUIPPED THEREWITH - An object of the present invention is to provide an electrolyte membrane-electrode membrane assembly for a solid polymer type fuel cell having superior characteristics, wherein a gas diffusion electrode membrane and a solid electrolyte membrane are well bonded, and electrode catalysts are uniformly-dispersed to obtain high electrode activity, a production method thereof and a fuel cell equipped therewith. | 12-10-2009 |
20090317682 | Oxide single crystal and method for production thereof, and single crystal wafer - An oxide single crystal having a composition represented by RE | 12-24-2009 |
20090317683 | MEMBRANE ELECTRODE ASSEMBLY FOR FUEL CELL AND FUEL CELL - The present invention is to provide a membrane electrode assembly for fuel cell which retains the wet state of a polymer electrolyte membrane and has excellent output characteristic under low humidified condition, under high-temperature condition, or in high current density region, and a fuel cell provided with the membrane electrode assembly. A membrane electrode assembly for fuel cell of the present invention comprises a polymer electrolyte membrane containing at least one or more kinds of proton-conducting polymers, a fuel electrode disposed on one surface of the polymer electrolyte membrane and an oxidant electrode disposed on the other surface thereof, wherein hydrophilicity of one surface of the polymer electrolyte membrane differs from that of the other surface of the polymer electrolyte membrane, in which a surface having relatively high hydrophilicity is defined as a first surface and a surface having relatively low hydrophilicity is defined as a second surface, the fuel electrode is disposed on the first surface of the polymer electrolyte membrane, and the oxidant electrode is disposed on the second surface thereof. A fuel cell of the present invention is provided with the membrane electrode assembly. | 12-24-2009 |
20090317684 | POLYMER ELECTROLYTE MEMBRANE, LAMINATE THEREOF, AND THEIR PRODUCTION METHODS - An object of the present invention is to provide a method for producing a laminate wherein an ion conductive polymer electrolyte membrane is laminated on a supporting substrate in a state where any one surface of the polymer electrolyte membrane is bonded to the supporting substrate, a difference in a contact angle against water between one surface and the other surface of the ion conductive polymer electrolyte membrane being 30° or less, the method comprising the steps of:
| 12-24-2009 |
20090325025 | HYDROPHILIC AND CORROSION RESISTANT FUEL CELL COMPONENTS - One embodiment disclosed includes a product comprising a fuel cell bipolar plate comprising a substrate comprising a first face, a reactant gas flow field defined in the first face, and a layer over at least a portion of the first face, wherein the layer comprises a zeolite. | 12-31-2009 |
20090325026 | POLYMER ELECTROLYTE MEMBRANE AND PRODUCING METHOD THEREOF, MEMBRANE-ELECTRODE ASSEMBLY AND FUEL CELL USING THE POLYMER ELECTROLYTE MEMBRANE, AND EVALUATION ION METHOD OF IONIC CONDUCTIVITY OF THE POLYMER ELECTROLYTE MEMBRANE - A producing method of a polymer electrolyte membrane is provided in which a polymer electrolyte membrane can be easily obtained having excellent ion conductivity in the thickness direction. | 12-31-2009 |
20090325027 | POLYMER ELECTROLYTE MEMBRANE COMPOSED OF AROMATIC POLYMER MEMBRANE BASE AND METHOD FOR PRODUCING THE SAME - Provision of, and a method for production of, a polymer electrolyte membrane, which is characterized by introducing a vinyl monomer into an aromatic polymer membrane substrate, typified by polyether ether ketone, polyether imide, or polysulfone, as graft chains by graft polymerization, and then chemically converting some of the graft chains or/and part of the aromatic polymer chain into sulfonic groups. | 12-31-2009 |
20090325028 | POLYMER ELECTROLYTE MEMBRANE, LAMINATE THEREOF, AND THEIR PRODUCTION METHODS - Provided is a method for producing a laminate in which an ion conductive polymer electrolyte membrane is laminated on a supporting substrate in a state where any one surface of the polymer electrolyte membrane is bonded to the supporting substrate, a difference in a contact angle against water between a first surface and a second surface of the surface of the ion conductive polymer electrolyte membrane being more than 30° in a case where the first surface is the side having a small contact angle against water of a membrane surface and the second surface is the side having a large contact angle against water of the membrane surface, the method includes the steps of: | 12-31-2009 |
20090325029 | MEMBRANE ELECTRODE ASSEMBLY FOR FUEL CELL AND FUEL CELL - A membrane electrode assembly for fuel cell that irrespectively of the front or backside of polymeric electrolyte membrane, exhibits high output performance, and that exhibits high junction at an interface between polymeric electrolyte membrane and electrode even under low humidification condition or high temperature condition, or in high current density region, realizing appropriate water management and excellent output characteristics. Further, there is provided a fuel cell including the above assembly. The membrane electrode assembly for fuel cell and fuel cell is one including a polymeric electrolyte membrane containing at least one type of proton conductive polymer; a fuel electrode disposed on one major surface of the polymeric electrolyte membrane; and an oxidizer electrode disposed on the other major surface of the polymeric electrolyte membrane, characterized in that in the use of water contact angle for specifying the hydrophilicity of each surface of the polymeric electrolyte membrane, the difference between the water contact angle on the one major surface of the polymeric electrolyte membrane and that on the other major surface thereof is 30° or less. The provided fuel cell is one having the above assembly. | 12-31-2009 |
20090325030 | FUEL CELL ELECTROLYTE MEMBRANE WITH ACIDIC POLYMER - An electrolyte membrane is formed by an acidic polymer and a low-volatility acid that is fluorinated, substantially free of basic groups, and is either oligomeric or non-polymeric. | 12-31-2009 |
20100003570 | OXIDATION-STABILISED POLYMER ELECTROLYTE MEMBRANE FOR FUEL CELLS - Polymer electrolyte membrane (PEM) made from perfluorosulfonic acid polymers, displaying proton conductivity at least in the presence of water, adequate for operation in a fuel cell, comprising at least one oxidation protection agent and additives. The PEM is an acid/base polymer blend which forms acidic and basic domains, the basic polymer being formed by polybenzimidazole (PBI) and the at least one oxidation protection agent being formed by manganese oxide | 01-07-2010 |
20100003571 | CATALYST STRUCTURE BODY FOR FUEL CELL, MANUFACTURE METHOD THEREFOR, MEMBRANE-ELECTRODE ASSEMBLY, AND FUEL CELL - A catalyst structure body for a fuel cell includes an agglomerate structure in which agglomerates each formed by aggregation of a catalyst-supporting carbon in which a catalyst is supported on a surface of a carbon have gathered, and a polymer having proton conductivity. The agglomerate structure and the polymer coexist. The polymer has entered pores between the agglomerates in the agglomerate structure. The average thickness of the polymer is set at 3 to 50 nanometers. | 01-07-2010 |
20100009235 | METAL PHOSPHATE AND METHOD FOR PRODUCING THE SAME - A metal phosphate having high proton conductivity which is useful for a fuel cell having higher output, and a method for producing such a metal phosphate are provided. The method for producing a metal phosphate is a metal phosphate production method using a compound containing M, a compound containing J | 01-14-2010 |
20100009236 | POLYMER ELECTROLYTE MEMBRANE FOR POLYMER ELECTROLYTE FUEL CELLS, AND MEMBRANE/ELECTRODE ASSEMBLY - To provide a polymer electrolyte membrane for polymer electrolyte fuel cells having high mechanical strength and excellent dimensional stability when it contains water even when it is made thin and the concentration of ionic groups is increased so as to reduce the electrical resistance, and a membrane/electrode assembly providing high output and having excellent durability. | 01-14-2010 |
20100015493 | FILM ELECTRODE COMPOSITE ELEMENT AND PRODUCTION METHOD THEREFOR, AND FUEL CELL - It is an object of the present invention to provide a method of producing a membrane electrode assembly using an interface resistance reducing composition which can simply reduce the resistance of the interface between an electrode and an electrolyte membrane in a short time at low temperatures at low pressure without polimerization while maintaining an effect of suppressing a fuel crossover even with an electrolyte membrane having high heat resistance, high strength, a high tensile elastic modulus and a low water content. This is achieved by a method of producing a membrane electrode assembly formed by sandwiching an electrolyte membrane between a pair of electrodes, comprising the steps of bonding at least one electrode to the electrolyte membrane sandwiching an interface resistance reducing composition containing a plasticizer between the electrode and the electrolyte membrane, and a membrane electrode assembly formed by sandwiching an electrolyte membrane between a pair of electrodes, wherein the membrane electrode assembly has a layer (A) at least between one electrode and the electrolyte membrane, and the value of the storage modulus C is 1 GPA or more when the storage moduli of the electrolyte membrane and the layer (A), which are measured with an ultramicro penetrometer, are regarded as C and D, respectively. | 01-21-2010 |
20100015494 | Ion-Conducting Ceramic Apparatus, Method, Fabrication, and Applications - A c-axis-oriented HAP thin film synthesized by seeded growth on a palladium hydrogen membrane substrate. An exemplary synthetic process includes electrochemical seeding on the substrate, and secondary and tertiary hydrothermal treatments under conditions that favor growth along c-axes and a-axes in sequence. By adjusting corresponding synthetic conditions, an HAP this film can be grown to a controllable thickness with a dense coverage on the underlying substrate. The thin films have relatively high proton conductivity under hydrogen atmosphere and high temperature conditions. The c-axis oriented films may be integrated into fuel cells for application in the intermediate temperature range of 200-600° C. The electrochemical-hydrothermal deposition technique may be applied to create other oriented crystal materials having optimized properties, useful for separations and catalysis as well as electronic and electrochemical applications, electrochemical membrane reactors, and in chemical sensors. | 01-21-2010 |
20100015495 | Electrochemical Device Comprising a Proton-Conducting Ceramic Electrolyte - The invention relates to the use of a ceramic of formula Ba | 01-21-2010 |
20100015496 | POLYMER ELECTROLYTE COMPOSITION, POLYMER ELECTROLYTE MEMBRANE, MEMBRANE ELECTRODE ASSEMBLY AND SOLID POLYMER ELECTROLYTE-BASED FUEL CELL - The present invention provides a polymer electrolyte composition comprising a polymer electrolyte (A component) having an ion exchange capacity of from 0.5 to 3.0 meq/g, a compound (B component) having a thioether group and a compound (C component) having an azole ring, wherein a mass ratio (B/C) of the B component to the C component is 1/99 to 99/1, and a total content of the B component and C component is 0.01 to 50% by mass based on the solid content in the polymer electrolyte composition. | 01-21-2010 |
20100021790 | Elastomeric bipolar plates - An elastomeric conductive bipolar plate for use in proton exchange membrane fuel cells is described. The plate reduces the weight of the fuel cell and eliminates the need for gaskets typically used in these fuel cells. | 01-28-2010 |
20100021791 | ASYMMETRIC DOVETAIL INTERCONNECT FOR SOLID OXIDE FUEL CELL - An interconnect for a solid oxide fuel cell includes a conductive structure having first portions defining a first contact zone, second portions defining a second contact zone which is spaced from the first contact zone, and intermediate portions extending between the first and second portions, wherein the intermediate portions are joined to the first portions through first corners, and wherein the intermediate portions are joined to the second portions through second corners, and wherein the first corners have a smaller radius than the second corners. | 01-28-2010 |
20100021792 | SOLID OXIDE FUEL CELL AND MANUFACTURING METHOD THEREOF - An electric power generation cell | 01-28-2010 |
20100028745 | Chemically modified catalyzed support particles for electrochemical cells - A membrane-electrode assembly in a polymer electrolyte/proton exchange membrane fuel cell includes the electrodes (anode and cathode), with a thin layer of catalyzed conductive support particles bonded to either side of the membrane. Where the polymer membrane comprises pendant chains of fluorinated carbon atoms with mobile proton containing terminal groups, proton conductivity with the catalyst particles is improved by chemically attaching like pendant chains to carbon atoms at surfaces of carbon particles. In certain implementations, an amino aryl perfluorinated sulfonic acid precursor is prepared. This precursor is converted to an aryl diazonium cation in the presence of carbon particles. The diazonium cation is reduced to the aryl radical which reacts with carbon atoms of the carbon substrate. | 02-04-2010 |
20100028746 | Ba-Sr-Co-Fe-O BASED PEROVSKITE MIXED CONDUCTING MATERIALS AS CATHODE MATERIALS FOR INTERMEDIATE TEMPERATURE SOLID OXIDE FUEL CELLS BOTH IN DUAL CHAMBER AND SINGLE CHAMBER CONFIGURATION - Improved cathode active materials for reduced temperature operation in single and dual chamber solid oxide fuel cells are provided. The cathode active materials comprise perovskites of the general form ABO | 02-04-2010 |
20100028747 | PRECONDITIONING TREATMENT TO ENHANCE REDOX TOLERANCE OF SOLID OXIDE FUEL CELLS - A high temperature, redox tolerant fuel cell anode electrode and method of fabrication in which the anode electrode is pre-conditioned by application of an initial controlled redox cycle to the electrode whereby an initial re-oxidation of the anode electrode is carried out at temperatures less than or equal to about 650° C. | 02-04-2010 |
20100035114 | Silicon-based Nanostructured Diode Fuel Cell - This design introduces a new paradigm for fuel cells, mimicking the action of a diode more than a battery, fundamentally changing fuel cell dynamics. This design addresses the major obstacles encountered in producing platinum-free fuel cells in a scalable format including the cost of catalytic materials, fuel flow control within the cell, power density, current regulation, voltage stability, contamination of electrode materials, water management and scalability. | 02-11-2010 |
20100035115 | METAL COMPONENT FOR FUEL CELL AND METHOD OF MANUFACTURING THE SAME, AUSTENITIC STAINLESS STEEL FOR POLYMER ELECTROLYTE FUEL CELL AND METAL COMPONENT FOR FUEL CELL USING THE SAME, POLYMER ELECTROLYTE FUEL CELL MATERIAL AND METHOD OF MANUFACTURING THE SAME, CORROSION-RESISTANT CONDUCTIVE COMPONENT AND METHOD OF MANUFACTURING THE SAME, AND FUEL CELL - An Au plated film | 02-11-2010 |
20100040927 | Silane crosslinked structure-introduced fuel-cell polymer electrolyte membrane and fuel-cell electrode assembly having the same - An object is to provide an electrolyte membrane that maintains excellent cell characteristics for a long time under high temperature and low water retention, as this is the most important point in fuel cells. | 02-18-2010 |
20100040928 | POLYMER ELECTROLYTE MEMBRANE AND METHOD FOR PRODUCING POLYMER ELECTROLYTE MEMBRANE - The present invention can provide a polymer electrolyte membrane having power generation characteristics with a high output and long life and a polymer electrolyte fuel cell using the same. The present invention provides a polymer electrolyte membrane having a porous polymer film and a proton conducting component present in a hole of the porous polymer film, characterized in that the proton conducting component has a compound having a proton conducting group and a bicyclo ring structure. | 02-18-2010 |
20100040929 | LAMINATED ELECTROLYTE MEMBRANE, METHOD OF PREPARING THE SAME, AND MEMBRANE ELECTRODE ASSEMBLY INCLUDING THE LAMINATED ELECTROLYTE MEMBRANE - A laminated electrolyte membrane, a membrane electrode assembly including the laminated electrolyte membrane, and a method of preparing the laminated electrolyte membrane, the laminate electrolyte membrane comprising at least two polymer membranes that are laminated together, and an electrolytic polymer obtained by polymerizing a monomer having a polymerizable functional group and a proton dissociable functional group. | 02-18-2010 |
20100047655 | ELECTROLYTE CONTAINING PHOSPHONIC ACID - A method is disclosed for production of solutions of aminophosphonic acids and polymeric sulphonic acids in aprotic solvents. Membranes for membrane methodologies are produced from said solutions. Said membranes can also be doped with phosphoric acid. | 02-25-2010 |
20100047656 | Dense Gd-doped Ceria Layers on Porous Substrates and Methods of Making the Same - Solid-state ionic or electrochemical devices can depend critically on the proper formation of a dense, Gd-doped ceria (GDC) layer on a porous substrate. Devices and methods of the present invention are characterized by the formation of a transitional buffer layer, which is less than 10 microns thick and comprises GDC, located between the porous substrate and the dense GDC layer. The transitional buffer layer provides a practical way to form the dense GDC layer on the porous substrate without cracks in the GDC layer and without clogging the pores of the substrate. | 02-25-2010 |
20100047657 | GRADIENT REINFORCED PROTON EXCHANGE MEMBRANE - An ion conducting polymeric structure suitable for fuel cell applications is provided. The polymeric structure comprises a non-homogenous polymeric layer. The non-homogeneous layer is a blend of a first polymer comprising cyclobutyl moiety; and a second polymer having a non-ionic polymer segment. The weight ratio of the first polymer to the second polymer varies as a function of position within the non-homogenous layer. The blend composition may be cast into an electrolyte membrane that can be used to prepare electrochemical cells such as batteries and fuel cells. | 02-25-2010 |
20100047658 | ION-CONDUCTING MEMBRANE - An ion-conducting membrane comprising a polymer component and a macrocyclic compound, wherein the macro-cyclic compound is functionalised with one or more ion-conducting groups is disclosed. The membrane is suitable for use in a fuel cell. | 02-25-2010 |
20100047659 | MEMBRANE-ELECTRODE JUNCTION AGENT, PROTON CONDUCTING MEMBRANE HAVING JUNCTION LAYER, MEMBRANE-ELECTRODE ASSEMBLY, POLYMER ELECTROLYTE FUEL CELL, AND MANUFACTURING METHOD OF THE MEMBRANE-ELECTRODE ASSEMBLY - A membrane-electrode junction agent, a proton conducting membrane having a junction layer, a membrane-electrode assembly, a polymer electrolyte fuel cell, and a manufacturing method of the membrane-electrode assembly, which enhance the power generation performance, realize the high fuel barrier property, and are capable of enhancing the joint strength between the membrane and the electrodes, is provided. A membrane-electrode junction agent that joins a proton conducting membrane and electrodes arranged on both surfaces of the proton conducting membrane to each other, the membrane-electrode junction agent including: a cross-linked compound (X) having a silicon-oxygen bond; a polymer material (Y) containing an acid group; and a hydrophilic resin (Z) containing no acid group. | 02-25-2010 |
20100047660 | DEVELOPMENT AND CHARACTERIZATION OF NOVEL PROTON CONDUCTING AROMATIC POLYETHER TYPE COPOLYMERS BEARING MAIN AND SIDE CHAIN PYRIDINE GROUPS - Featured are novel heterocycle substituted hydroquinones, aromatic copolymers and homopolymers bearing main and side chain polar pyridine units. These polymers exhibit good mechanical properties, high thermal and oxidative stability, high doping ability and high conductivity values. These novel polymers can be used in the preparation and application of MEA on PEMFC type single cells. The combination of the above mentioned properties indicate the potential of the newly prepared materials to be used as electrolytes in high temperature PEM fuel cells. | 02-25-2010 |
20100047661 | POLYMER LAMINATE MEMBRANE, THE METHOD FOR PRODUCING THE MEMBRANE AND THE USE OF THE MEMBRANE - The present invention relates to a laminated membrane comprising a membrane (I) which comprises aromatic polymer electrolyte containing a super strong acid group and a membrane (II) which comprises one compound selected from the group consisting of electrolytes of perfluoroalkylsulfonic acid polymer and non-super strong acid polymer, and a laminated membrane comprising a membrane (III) which comprises a perfluoroalkylsulfonic acid polymer electrolyte and a membrane (IV) which comprises a non-super strong acid polymer electrolyte. The laminated membrane of the present invention is an electrolyte membrane excellent in generation performance and excellent also in the respect of mechanical strength. | 02-25-2010 |
20100055533 | BARRIER COATINGS FOR INTERCONNECTS; RELATED DEVICES, AND METHODS OF FORMING - A method of preparing a solid oxide fuel cell is described herein, as well as the fuel cell itself. The method comprises forming a cathode layer comprising a strontium composition on a ceramic electrolyte layer; and forming a barrier layer between the cathode layer and an overlying interconnect structure comprising chromium, so as to substantially prevent the formation of strontium chromate. | 03-04-2010 |
20100055534 | ELECTROLYTE MEMBRANE, METHODS OF MANUFACTURE THEREOF AND ARTICLES COMPRISING THE SAME - Disclosed herein is a method of forming an electrolyte membrane comprising forming a mixture; the mixture comprising a polyhydroxy compound, an aromatic polyhalide compound and an alkali metal hydroxide; disposing the mixture on a porous substrate; reacting the mixture to form a crosslinked proton conductor; and sulfonating the proton conductor. Disclosed herein too is an article comprising a porous substrate; and a sulfonated crosslinked proton conductor disposed within pores of the porous substrate. | 03-04-2010 |
20100055535 | ELECTROLYTE MEMBRANE, METHODS OF MANUFACTURE THEREOF AND ARTICLES COMPRISING THE SAME - Disclosed herein is a method of forming an electrolyte membrane comprising forming a mixture; the mixture comprising a polyhydroxy compound, an aromatic polyhalide compound and an alkali metal hydroxide; disposing the mixture on a porous substrate; reacting the mixture to form a proton conductor; and crosslinking the proton conductor to form a cross-linked proton-conducting network. Disclosed herein too is an article comprising a porous substrate; and a crosslinked proton conductor disposed on the porous substrate. | 03-04-2010 |
20100055536 | METHOD FOR PRODUCING A POLYMER ELECTROLYTE MEMBRANE - The invention provides a method for producing a polymer electrolyte membrane including (A) a membrane formation step of forming a membrane-form product of an ionic group-containing polymer electrolyte on a support, (B) an acid treatment step of exchanging the ionic group into an acid type by bringing the membrane into contact with an inorganic acid-containing acidic liquid, (C) an acid removal step of removing a free acid in the acid-treated membrane, and (D) a drying step of drying the acid-removed membrane, wherein the steps (B) to (D) are carried out without separating the membrane from the support. | 03-04-2010 |
20100062311 | MEMBRANE-ELECTRODE ASSEMBLY FOR SOLID POLYMER ELECTROLYTE FUEL CELL - A membrane-electrode assembly for a solid polymer electrolyte fuel cell is provided that uses a proton conductive membrane having high proton conductivity and also superior heat resistance and chemical durability. A membrane-electrode assembly for a solid polymer electrolyte fuel cell is provided with an anode on one side of a proton conductive membrane and a cathode on another side thereof, and the proton conductive membrane is a sulfonated polyarylene containing a structure expressed by the general formula (1) below: | 03-11-2010 |
20100062312 | THIN SOLID OXIDE CELL - The present invention relates to a thin and in principle unsupported solid oxide cell, comprising at least a porous anode layer, an electrolyte layer and a porous cathode layer, wherein the anode layer and the cathode layer comprise an electrolyte material, at least one metal and a catalyst material, and wherein the overall thickness of the thin reversible cell is about 150 μm or less, and to a method for producing same. The present invention also relates to a thin and in principle unsupported solid oxide cell, comprising at least a porous anode layer, an electrolyte layer and a porous cathode layer, wherein the anode layer and the cathode layer comprise an electrolyte material and a catalyst material, wherein the electrolyte material is doper zirconia, and wherein the overall thickness of the thin reversible cell is about 150 μm or less, and to a method for producing same. The present invention further provides a thin separation membrane, comprising at least a porous anode layer, a membrane layer comprising a mixed conducting material and a porous cathode layer, wherein the anode layer and the cathode layer comprise the mixed conducting material and a catalyst material, and wherein the overall thickness of the thin separation membrane is about 1050 μm or less. | 03-11-2010 |
20100062313 | ANION EXCHANGE MEMBRANES - A method for preparing an anion exchange membrane suitable for use in an alkaline fuel cell and particularly in a direct borohydride fuel cell, involves radiation grafting a hydrocarbon polymer film with a monomer and adding a quaternising agent. The degree of grafting is improved by mixing the monomer with a diluent comprising alcohol and a hydrocarbon solvent. | 03-11-2010 |
20100062314 | DURABLE FUEL CELL - Fuel cell membrane electrode assemblies and fuel cell polymer electrolyte membranes are provided comprising manganese oxides which demonstrate increased durability. Methods of making same are provided. | 03-11-2010 |
20100068592 | Electrodes for use in hydrocarbon-based membrane electrode assemblies of direct oxidation fuel cells - Electrodes for use in direct oxidation fuel cells (DOFCs) comprise, in sequence: an electrically conductive gas diffusion layer; a catalyst layer; and a proton-conducting layer. Membrane electrode assemblies (MEAs) comprise cathode and anode electrodes of such type sandwiching a proton conductive polymer electrolyte membrane (PEM), with the proton-conducting layer of the electrodes in contact with opposite surfaces of the PEM. Also disclosed is a method for fabricating the MEAs. | 03-18-2010 |
20100068593 | POLYMER ELECTROLYTE MEMBRANE WITH FUNCTIONALIZED NANOPARTICLES - The present invention relates to a polymer electrolyte membrane for fuel cells, comprising a polymer matrix of at least one basic polymer and one or more doping agents, wherein particles containing ionogenic groups and having a mean particle diameter in the nanometer range are embedded in the polymer matrix and the particles containing ionogenic groups are distributed homogeneously in the polymer matrix in a concentration of less than 50% relative to the weight of the polymer matrix, as well as to the production and use of same, especially in high-temperature fuel cells. | 03-18-2010 |
20100068594 | POLYMER ELECTROLYTE MEMBRANE, METHOD OF PREPARING THE SAME, AND FUEL CELL INCLUDING THE POLYMER ELECTROLYTE MEMBRANE - Provided are a polymer electrolyte membrane that is stable even at high temperatures in non-humidified conditions, thereby having high proton conductivity, a method of preparing the polymer electrolyte membrane described above, by which high productivity can be obtained, and a fuel cell with high power generation characteristics by using the polymer electrolyte membrane. In particular, there is provided a method of preparing a polymer electrolyte membrane in which a mixed solution prepared by dissolving a (hydrocarbon-based) polymer electrolyte having an acidic functional group and any one free acid source selected from the free acid, mixtures of a free acid and Lewis acid, and mixtures of a free acid and an organic salt in a polar organic solvent is subjected to wet membrane formation to prepare a polymer electrolyte membrane in which the polymer electrolyte is doped with the free acid. | 03-18-2010 |
20100068595 | POLYMER ELECTROLYTE COMPRISING INORGANIC CONDUCTIVE NANO-PARTICLES AND FUEL CELL EMPLOYING THE POLYMER ELECTROLYTE - A polymer electrolyte and a fuel cell employing the polymer electrolyte are provided. The polymer electrolyte includes: an ionic conductive polymer membrane; a porous support having nano-sized pores; and inorganic conductive nano-particles including an ionic conductive material impregnated into the porous support, wherein the inorganic conductive nano-particles are impregnated into microchannels formed by aggregation of polar portions of the ionic conductive polymer membrane, and/or between polymer backbones of the ionic conductive polymer membrane. | 03-18-2010 |
20100075193 | Proton Conductive Membrane and Method for Producing it - A proton conductive membrane having high proton conductivity is provided. | 03-25-2010 |
20100075194 | Low-temperature bonding of refractory ceramic layers - A cathode of a solid-oxide fuel cell includes a first ionic conducting layer, a second layer deposited over the first layer and formed from a mixed ionic and electronic conductor layer including an oxygen ion conducting phase, and a third layer deposited over the second layer and formed from a mixed ionic and electronic conductor layer. A sintering aid and pore formers are added to the second layer and the third layer to establish ionic, electronic, and gas diffusion paths that are contiguous. By adjusting the microstructure of the second and the third layer, a high performance low resistance cathode is formed that bonds well to the electrolyte, is highly electro-catalytic, and has a relatively low overall resistance. By using inexpensive and readily available substances as sintering aid and as pore formers, a low-cost cathode is provided. | 03-25-2010 |
20100075195 | Nanoporous Polymer Electrolyte - A nanoporous polymer electrolyte and methods for making the polymer electrolyte are disclosed. The polymer electrolyte comprises a crosslinked self-assembly of a polymerizable salt surfactant, wherein the crosslinked self-assembly includes nanopores and wherein the crosslinked self-assembly has a conductivity of at least 1.0×10 | 03-25-2010 |
20100075196 | Polymer Electrolyte, Membrane Electrode Assembly and Fuel Cell - The present invention easily provides a polymer electrolyte that exhibits high proton conductivity under low humidity conditions and has a high level of durability and mechanical strength. The polymer electrolyte is produced by mixing proton-conducting sulfonated polyethersulfone C1, sulfonated polyphenylene sulfide C2 or sulfonated poly(4-phenoxybenzoyl-1,4-phenylene) C3 having a sulfonic acid group A as a protic acid group with 1,4-benzenedimethanol B as a crosslinking agent having a methylol group and heat-treating the mixture so that a reaction can be carried out. The polymer electrolyte includes a plurality of proton-conducting sulfonated polyethersulfone moieties C chemically bonded at their aromatic ring moieties other than the sulfonic acid group A to one another through a residue B′ of 1,4-benzenedimethanol. | 03-25-2010 |
20100075197 | FULLERENE BASED PROTON CONDUCTIVE MATERIALS - A fullerene-based proton conductor including a proton conductive functional group connected to the fullerene by an at least partially fluorinated spacer molecule. Also, a polymer including at least two of the proton conductors that are connected by a linking molecule. Further, an electrochemical device employing the polymer as a proton exchange membrane, whereby the device is able to achieve a self-humidifying characteristic. | 03-25-2010 |
20100081028 | Binder for a fuel cell catalyst composition, a membrane electrode assembly for a fuel cell using the binder and a method for preparing a membrane electrode assembly - A membrane-electrode assembly includes a polymer electrolyte membrane with an anode and a cathode on opposite sides. Each of the anode and the cathode includes an electrode substrate, and a catalyst layer is formed on at least one of the electrode substrates and includes at least one proton conductive crosslinked polymer. The membrane-electrode assembly may include catalyst layers that are positioned on opposite sides of a polymer electrolyte membrane, either of which includes at least one crosslinked proton conductive polymer. | 04-01-2010 |
20100081029 | Separating Membrane for Fuel Cell - The present invention discloses: | 04-01-2010 |
20100081030 | METHOD FOR PRODUCING POLYMER ELECTROLYTE MEMBRANE AND POLYMER ELECTROLYTE MEMBRANE - A method for producing a polymer electrolyte membrane including:
| 04-01-2010 |
20100081031 | POLYMER ELECTROLYTE MEMBRANE FOR DIRECT METHANOL FUEL CELL AND DIRECT METHANOL FUEL CELL - According to one embodiment, a direct methanol fuel cell is provided with an anode to which an aqueous methanol solution is fed, a cathode to which an oxidant is fed and a polymer electrolyte membrane which is disposed between the anode and the cathode and contains a heterocyclic ester copolymer having a specific structure. | 04-01-2010 |
20100081032 | Glass Seal Containing Zirconia Powder and Fiber for a Solid Oxide Fuel Cell Stack - A glass ceramic composition for sealing adjacent metal cassettes in an SOFC stack. The seal composition comprises an alumina-silicate glass ceramic matrix or a matrix of Zr2 and a ceramic fiber aggregate and non-fibrous zirconia dispersed in the matrix. Preferably, the fiber is selected from the group consisting of zirconium oxide fiber, alumina fiber, and combinations thereof. Preferably, the fiber is present at 1-60 weight percent with respect to the weight of glass ceramic, preferably about 30 weight percent. Preferably, the zirconia fiber is stabilized by up to about 10% yttria. Alumina fiber may substitute for a portion of the zirconia fiber. Preferably, the non-fibrous zirconia is present at about 5 weight percent and is also stabilized. | 04-01-2010 |
20100081033 | POLYMER ELECTROLYTE AND FUEL CELL EMPLOYING THE SAME - A polymer electrolyte that may be used in a fuel cell includes sulfonated polyether ketone ketone and a cross-linking agent. | 04-01-2010 |
20100086825 | Sealing Materials, Devices Utilizing Such Materials and a Method of Making Such Devices - According to one embodiment a solid oxide fuel cell device incorporates a seal resistant to hydrogen gas permeation at a in the range of 600° C. to 9000 C, the seal having a CTE in the 100×10 | 04-08-2010 |
20100092832 | METHOD FOR PREPARING METAL OXIDE SOL, METHOD FOR PREPARING METAL OXIDE THIN FILM USING SAID SOL, AND SOLID OXIDE FUEL CELL COMPRISING SAID THIN FILM - A metal oxide thin film structure for a solid oxide fuel cell, prepared by a method comprising dispersing a metal oxide nanopowder in a metal oxide salt solution and subsequent coating of the resulting metal oxide powder dispersed sol and the metal oxide salt solution on a porous substrate, has excellent gas impermeability, excellent phase stability, and is devoid of cracks or pinholes. | 04-15-2010 |
20100092833 | COMPOSITES AND COMPOSITE MEMBRANES - The invention relates to a composite or a composite membrane consisting of an ionomer and of an inorganic optionally functionalized phyllosilicate. The isomer can be: (a) a cation exchange polymer; (b) an anion exchange polymer; (c) a polymer containing both anion exchanger groupings as well as cation exchanger groupings on the polymer chain; or (d) a blend consisting of (a) and (b), whereby the mixture ratio can range from 100% (a) to 100% (b). The blend can be ionically and even covalently cross-linked. The inorganic constituents can be selected from the group consisting of phyllosilicates or tectosilicates. | 04-15-2010 |
20100098994 | Ferritic Chromium Steel - The present disclosure relates to a ferritic chromium stainless steel with the following composition in percent by weight: C max 0.1, Si 0.1-1, Mn max 0.6, Cr 20-25, Ni max 2, Mo 0.5-2, Nb 0.3-1.5, Ti max 0.5, Zr max 0.5, REM max 0.3, Al max 0.1, N max 0.07 balance Fe and normally occurring impurities, and wherein the content of Zr+Ti is at least 0.2%. The ferritic chromium stainless steel is suitable for use in fuel cells, especially Solid Oxide Fuel Cells. | 04-22-2010 |
20100098995 | Direct methanol fuel cell system and portable electronic device - A fuel cell comprises a fuel electrode, an electrolyte membrane and an air electrode | 04-22-2010 |
20100098996 | SOLID OXIDE FUEL CELL AND MANUFACTURING METHOD THEREOF - A solid oxide fuel cell including a metal frame, a pre-treated porous metal substrate, an anode layer, an electrolyte layer, a cathode interlayer and a cathode current collecting layer is provided. The pre-treated porous metal substrate is disposed inside the metal frame. The anode layer is disposed on the porous metal substrate. The electrolyte layer is disposed on the anode layer. The cathode interlayer is disposed on the electrolyte layer. The cathode current collecting layer is disposed on the cathode interlayer. The anode layer is porous and nano-structured. Moreover, a manufacturing method of the solid oxide fuel cell mentioned above is also provided. | 04-22-2010 |
20100098997 | POLYMER ELECTROLYTE MEMBRANE AND PROCESS FOR PREPARATION THEREOF, AND MEMBRANE-ELECTRODE ASSEMBLY AND POLYMER ELECTROLYTE FUEL CELL - A polymer electrolyte membrane comprising as a main ingredient a block copolymer (P) which comprises, as its constituents, a vinyl alcoholic polymer block (A) and a polymer block (B) having ion-conducting groups, which block copolymer | 04-22-2010 |
20100098998 | ELECTROLYTE MEMBRANE, METHOD FOR PRODUCING THE SAME, AND MEMBRANE ELECTRODE ASSEMBLY - An electrolyte membrane is obtained, by which formation of large stresses within the membrane due to swelling of the electrolyte membrane as a result of water absorption can be avoided in the operation of a fuel cell and with which a high-performance durable membrane electrode assembly can be produced. For this purpose, a fluorine-based electrolyte resin membrane | 04-22-2010 |
20100098999 | SOLID OXIDE FUEL CELL AND FUEL CELL MODULE COMPRISING THE SOLID OXIDE FUEL CELL - Disclosed is a solid oxide fuel cell that has a high initial power generation performance and a good power generation durability. The fuel cell comprises at least a fuel electrode, an electrolyte, an air electrode, and a current collecting part disposed on the air electrode, wherein the current collecting part comprises an electroconductive metal and an oxide, the electroconductive metal is silver and palladium, the oxide is a perovskite oxide, and the content of the oxide is more than 0 (zero) and less than 0.111 in terms of weight ratio to the electroconductive metal. | 04-22-2010 |
20100104917 | SOLID POLYMER ELECTROLYTE, METHOD FOR PRODUCTION THEREOF, AND MEMBRANE ELECTRODE ASSEMBLY FOR FUEL CELL USING THE SAME - The present invention is to provide a low-cost solid polymer electrolyte having a low glass transition temperature and excellent proton conductivity and is also to provide a method for producing the solid polymer electrolyte and a membrane electrode assembly using the solid polymer electrolyte. The solid polymer electrolyte is a copolymer represented by the following formula (1): | 04-29-2010 |
20100104918 | IMPROVED FUEL CELL PROTON EXCHANGE MEMBRANES - This invention concerns an improved PEM for fuel cell applications such that the membrane is more robust. Specifically, this invention provides PEM in MEA systems that have nano-particles carrying proton conducting groups, and improved dimensional stability relative to conductivity. This invention provides a composition of matter for a high proton conductance, solid polymer electrolyte membrane, said membrane comprising: A) a nano-additive carrying proton conducting groups having a size from about 1 nm to about 1,000 run; B) a carrier polymer for the nano-additive of Part A; and C) a proton exchange membrane (PEM) or membrane electrode assembly (MEA) formed by mixing the components of Part A and Part B above. These proton conducting groups are contributed by POSS-based nano-additives or cyclic phosphazene-based nano-additives or small molecules carrying sulfonic acid groups in fuel cells or batteries. | 04-29-2010 |
20100104919 | REINFORCING FILM FOR THE ELECTROLYTE MEMBRANE OF A POLYMER ELECTROLYTE FUEL CELL - A biaxially oriented film for reinforcing the electrolyte membrane of a polymer electrolyte fuel cell, wherein the film includes (i) a layer mainly composed of polyethylene naphthalene dicarboxylate and has (ii) a Young's modulus in at least one direction of not less than 9,000 MPa and (iii) a thickness of 15 to 150 μm. The biaxially oriented film has a satisfactory reinforcing effect as a reinforcing member for a polymer electrolyte membrane at the operation temperature of a polymer electrolyte fuel cell though it is a thin film. | 04-29-2010 |
20100104920 | DIAPHRAGM FOR DIRECT LIQUID FUEL CELL AND METHOD FOR PRODUCING THE SAME - The present invention discloses a membrane for direct liquid fuel cell comprising a porous film and a crosslinked hydrocarbon-based anion exchange resin filled in the pores of the porous film, in which the amino exchange resin has a quaternary ammonium group as an anion exchange group, wherein the membrane is characterized by having a membrane thickness of 5 to 60 μm, a membrane resistance as measured in a wet condition of 40° C. by an alternating impedance method, of 0.005 to 1.2 Ω·cm | 04-29-2010 |
20100112407 | COMPOSITE MATERIAL SUITABLE FOR USE AS AN ELECTRODE MATERIAL IN A SOC - The present invention relates to composite material suitable for use as an electrode material in a solid oxide cell, said composite material consist of at least two non-miscible mixed ionic and electronic conductors. Further provided is a composite material suitable for use as an electrode material in a solid oxide cell, said composite material being based on (Gd | 05-06-2010 |
20100112408 | CHEMICAL COMPOSITIONS, METHODS OF MAKING THE CHEMICAL COMPOSITIONS, AND STRUCTURES MADE FROM THE CHEMICAL COMPOSITIONS - Embodiments of the present disclosure include chemical compositions, structures, anodes, cathodes, electrolytes for solid oxide fuel cells, solid oxide fuel cells, fuel cells, fuel cell membranes, separation membranes, catalytic membranes, sensors, coatings for electrolytes, electrodes, membranes, and catalysts, and the like, are disclosed. | 05-06-2010 |
20100112409 | Polymer membrane for fuel cell, method of preparing the same, membrane-electrode assembly including the same, and fuel cell system including the same - The present invention relates to a polymer electrolyte membrane for a fuel cell, a method for manufacturing the polymer electrolyte membrane, a membrane-electrode assembly for a fuel cell including the polymer electrolyte membrane, and a fuel cell system including the membrane-electrode assembly. The polymer electrolyte membrane includes a proton-conductive polymer membrane including a polymer micelle inside a hydrophilic channel. Herein, the micelle includes a vinyl-based polymer obtained from polymerization of a vinyl-based monomer and an anionic surfactant surrounding the vinyl-based polymer. | 05-06-2010 |
20100119908 | PROTON CONDUCTING MEMBRANE, MEMBRANE-ELECTRODE ASSEMBLY, AND POLYMER ELECTROLYTE FUEL CELL - A proton conducting membrane, a membrane-electrode assembly, and a polymer electrolyte fuel cell, which can realize high impact resistance and high polar solvent resistance as well as high proton conductivity, at the same time, can improve adhesion to an electrode, and can improve power generation performance, are provided. A proton conducting membrane includes a silicon-oxygen bonding structure (A) containing a cross-linked structure formed by a silicon-oxygen bond, and an acid group-containing structure (B) covalently bonded to a silane compound and containing an acid group, which are coupled to each other by a silicon—oxygen bond, wherein the acid group-containing structure (B) includes a structure in which a silane compound (α) having a polymerizable unsaturated double bond and an acid group-containing compound (β) having an acid group and a polymerizable unsaturated double bond are covalently bonded to each other. | 05-13-2010 |
20100136380 | SOLID OXIDE CELL AND SOLID OXIDE CELL STACK - A solid oxide cell obtainable by a process comprising the steps of: depositing a fuel electrode layer on a fuel electrode support layer; depositing an electrolyte layer comprising stabilised zirconia on the fuel electrode layer to provide an assembly of fuel electrode support, fuel electrode and electrolyte; optionally sintering the assembly of fuel electrode support, fuel electrode and electrolyte together to provide a pre-sintered half cell; depositing on the electrolyte layer of the pre-sintered half cell one or more oxygen electrode layers, at least one of the oxygen electrode layers comprising a composite of lanthanum-strontium-manganite and stabilised zirconia to provide a complete solid oxide cell; sintering the oxygen electrode layers together with the pre-sintered half cell to provide a sintered complete solid oxide cell; and impregnating the one or more oxygen electrode layers of the sintered complete solid oxide cell with manganese to obtain a manganese impregnated solid oxide cell. | 06-03-2010 |
20100143764 | ELECTROLYTE FOR FUEL CELL, ELECTROLYTE MEMBRANE FOR FUEL CELL, BINDER FOR FUEL CELL, MEMBRANE ELECTRODE ASSEMBLY FOR FUEL CELL, AND FUEL CELL - Disclosed is an electrolyte for fuel cells, which is mainly composed of a copolycondensate of a polyimide having an alkoxysilyl group at an end and an alkoxysilane having an ion-conducting group. Also disclosed are an electrolyte membrane for fuel cells, a binder for fuel cells and a membrane electrode assembly for fuel cells, each using the electrolyte, and a fuel cell using such a membrane electrode assembly for fuel cells. The electrolyte enables to obtain an electrolyte membrane, a binder and a membrane electrode assembly, each having high ion conductivity, high strength, high toughness, low swelling and low fuel permeability suitable for fuel cells. By using such an electrolyte, there can be obtained a low-cost fuel cell having high output power and high durability. | 06-10-2010 |
20100167100 | COMPOSITE MEMBRANE AND METHOD FOR MAKING - A composite membrane includes a compatibilized porous base membrane and an ion exchange material, which is impregnated into the compatibilized porous base membrane. The base membrane is compatibilized by coating a primer to external and internal surfaces of the porous base membrane and crosslinking the primer. A method for making the membrane, a proton exchange membrane for a fuel cell and a method form making the proton exchange membrane are also provided. The composite membrane is durable, compatible, highly conductive and mechanically stable. | 07-01-2010 |
20100167101 | PROTON EXCHANGE MEMBRANE COMPOSITION - Proton exchange membrane compositions having high proton conductivity are provided. The proton exchange membrane composition includes a hyper-branched polymer, wherein the hyper-branched polymer has a DB (degree of branching) of more than 0.5. A polymer with high ion conductivity is distributed uniformly over the hyper-branched polymer, wherein the hyper-branched polymer has a weight ratio equal to or more than 5 wt %, based on the solid content of the proton exchange membrane composition. | 07-01-2010 |
20100167102 | INTER-PENETRATED PROTON EXCHANGE MEMBRANE, METHOD FOR MANUFACTURING THE SAME, AND PROTON EXCHANGE MEMBRANE FUEL CELL UTILIZING THE SAME - The disclosed forms a proton exchange membrane. First, multi-maleimide and barbituric acid are copolymerized to form a hyper-branched polymer. Next, the solvent of the sulfonated tetrafluorethylene copolymer (Nafion) aqueous solution is replaced from water with dimethyl acetamide (DMAc). 10 to 20 parts by weight of the hyper-branched polymer is added to the 90 to 80 parts by weight of the Nafion in a DMAc solution, stood and heated to 50° C. to inter-penetrate the hyper-branched polymer and the Nafion. The heated solution is coated on a substrate, baked, and pre-treated to remove residue solvent for completing an inter-penetrated proton exchange membrane. | 07-01-2010 |
20100167103 | SOLID PROTON CONDUCTOR FOR FUEL CELL AND FUEL CELL USING THE SAME - A solid proton conductor for a fuel cell and a fuel cell employing the solid proton conductor, the solid proton conductor including a sulfonated polymer, and a hydrophilic polymer having an acid group, constituting a polymer solvent, providing a proton mobile path. | 07-01-2010 |