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Solid electrolyte

Subclass of:

429 - Chemistry: electrical current producing apparatus, product, and process

429012000 - FUEL CELL, SUBCOMBINATION THEREOF OR METHODS OF OPERATING

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
429033000 Electrolyte composition chemically specified 278
429031000 Tubular 21
429032000 Plural disc or modules 13
Entries
DocumentTitleDate
20090029222Fuel cell with structured gas diffusion layer and manufacturing method of gas diffusion layer - A cell for a fuel cell comprises an electrolyte layer, a catalyst layer and a gas diffusion layer formed to be contacted to both sides of the electrolyte layer, an anode contacting hydrogen, and a cathode contacting oxygen and air, cations being transferred through the electrolyte layer or the operating temperature being equal to or less than 100° C., characterized in that the cell for the fuel cell has hollow portions hollowed up and down inside the gas diffusion layer. The manufacturing method uses a mold having the specific pattern to form the hollow portion in the gas diffusion layer using the micro needle or the micro lens so that the diffusion resistance inside the gas diffusion layer is lowered, making it possible to smoothly move fuel and reactants through the hollow portion and the reaction is smoothly performed even in a situation where fuel partial pressure is low.01-29-2009
20080318106Catalyst for a cathode of a mixed reactant fuel cell, membrane-electrode assembly for a mixed reactant fuel cell including the same, and mixed reactant fuel cell system including the same - The cathode catalyst for a mixed reactant fuel cell includes a mixed catalyst that includes a first catalyst including a Ru—Ch1 compound where Ch1 is a chalcogens selected from the group consisting of S, Se, Te, and combinations thereof, and a second catalyst including a Pt—Ch2 compound where Ch2 is a chalcogens selected from the group consisting of S, Se, Te, and combinations thereof. The cathode catalyst can improve excellent power characteristics of a fuel cell due to excellent catalyst activity and selectivity.12-25-2008
20080299431MEMBRANE ELECTRODE ASSEMBLY FOR FUEL CELL - A membrane electrode assembly comprises (a) a solid electrolyte polymer membrane; (b) an anode electrocatalyst layer disposed at one surface of the membrane and comprising a first electrocatalyst composition comprising carbon substrate particles and nanoparticles comprising an alloy of platinum and ruthenium disposed on the surface of the substrate particles; (c) a cathode electrocatalyst layer disposed at an opposite surface of the membrane, the cathode layer comprising a second electrocatalyst composition different from the first electrocatalyst composition and comprising carbon substrate particles and nanoparticles comprising platinum disposed on the surface of the substrate particles; and (d) gas diffusion layers disposed over each of the anode and cathode electrocatalyst layers. When operating in a direct methanol fuel cell with an active area of 25 cm12-04-2008
20100062306Polymer Electrolyte Fuel Cell, Membrane Electrode Assembly and Manufacturing Method Thereof - The present invention provides a method for manufacturing an MEA with high production efficiency. It is a feature of the present invention that the method for manufacturing an MEA includes coating a first catalyst ink on a substrate to form a coated layer of the first catalyst ink, removing the solvent in the coated layer of the first catalyst ink to form a first electrode catalyst layer, coating an electrolyte ink on the first electrode catalyst layer to form a coated layer of the electrolyte ink, removing the solvent in the coated layer of the electrolyte ink to form a polymer electrolyte membrane, coating a second catalyst ink on the polymer electrolyte membrane to form a coated layer of the second catalyst ink, and removing the solvent in the coated layer of the second catalyst ink to form a second electrode catalyst layer.03-11-2010
20090148740SOLID ELECTROLYTE FUEL CELL - A membrane electrode assembly for a solid electrolyte fuel cell comprises: an electrode having a layer of nano-structured material on one of its faces, an electrocatalyst deposited on the nano-structured material and an electrolyte deposited on the electrocatalyst/nano-structured material. The nano-structured material can comprise carbon, silicon, graphite, boron, titanium and be in the form of multi-walled nano-tubes (MWNTs), single-walled nano-tubes (SWNTs), nano-fibers, nano-rods or a combination thereof. The nano-structured material can be grown or deposited on one face of an electrode of the cell or on a substrate such as a flexible sheet material of carbon fibers using chemical vapor deposition. The electrocatalyst and electrolyte can be incorporated in the nano structured material using physical vapor deposition (PVD), ion beam sputtering or molecular beam epitaxy (MBE).06-11-2009
20080261096Method For Producing Cathodes and Anodes for Electrochemical Systems, Metallised Material Used Therein, Method and Device For Production of Said Metallised Material - The invention relates to the production of composite cathodes and anodes for lithium batteries, and the cathodes and anodes thereby produced. The active mass in the form of a thin film is incorporated into a material, or the active mass together with a matrix metal or a matrix alloy is deposited on a substrate. The invention also relates to a metallized, textile material made of insulating fibres which have been made conductive and which have been completely galvanically or electrolessly plated. The fibres lying on crossovers are not baked with other fibres, but can move freely. The surface of the material is thereby optimally used. Said material is preferably used as an anode or a cathode for batteries, especially a lithium battery, and fuel cells. During the galvanizing or electroless application stage in the production of the material, the fibres in the material move relatively to each other in order to avoid baking. A device for said production process comprises first rollers (10-23-2008
20080261095Membrane-Electrode Assembly, Method for Manufacturing the Same, and Fuel Cell - A membrane-electrode assembly (10-23-2008
20100028743AMORPHOUS CARBON COATINGS FOR FUEL CELL BIPOLAR PLATES - A flow field plate for fuel cell applications includes a metal with a non-crystalline carbon layer disposed over at least a portion of the metal plate. The non-crystalline carbon layer includes an activated surface which is hydrophilic. Moreover, the flow field plate is included in a fuel cell with a minimal increase in contact resistance. Methods for forming the flow field plates are also provided.02-04-2010
20100035110ELECTROCHEMICAL DEVICE - The present invention relates to a fuel cell device for use in planar configuration air breathing polymer electrolyte electrochemical devices and to a support plate, gas connection means and clamping means for use in the fuel cell device. The electrochemical device may be use as a fuel cell or an electrolyser. In particular it relates to a planar configuration air breathing polymer electrolyte electrochemical device including at least two fuel cells arranged in series connection on one surface of a support plate, characterised in that the fuel cells (02-11-2010
20100015490MEMBRANE ELECTRODE ASSEMBLY FOR POLYMER ELECTROLYTE FUEL CELL AND POLYMER ELECTROLYTE FUEL CELL - The present invention provides a membrane electrode assembly for a polymer electrolyte fuel cell, including: an electrolyte membrane; a catalyst layer; and a conductive porous gas diffusion layer, in which an interface between the catalyst layer and the electrolyte membrane is provided with a groove for allowing one of passage and retention of a fluid, and a polymer electrolyte fuel cell employing the membrane electrode assembly. As a result, there is provided at low costs the membrane electrode assembly for a polymer electrolyte fuel cell having improved drainage performance and the polymer electrolyte fuel cell employing the membrane electrode assembly and having stable power generation performance.01-21-2010
20100159301MEMBRANE/ELECTRODE ASSEMBLY FOR POLYMER ELECTROLYTE FUEL CELL, COATING FLUID FOR FORMING CATALYST LAYER FOR POLYMER ELECTROLYTE FUEL CELL, AND PROCESS FOR PRODUCING MEMBRANE/ELECTRODE ASSEMBLY FOR POLYMER ELECTROLYTE FUEL CELL - To provide a membrane/electrode assembly in which flooding in a catalyst layer is less likely to occur; a coating fluid for forming a catalyst layer capable of forming a catalyst layer in which flooding is less likely to occur; and a process for producing a membrane/electrode assembly in which flooding in a catalyst layer is less likely to occur.06-24-2010
20100086824ASSEMBLIES OF HOLLOW ELECTRODE ELECTROCHEMICAL DEVICES - This disclosure relates to a compact and thermally integrated structure for assemblies of hollow electrode electrochemical devices (HEED), such as solid oxide fuel cells, solid oxide electrolysis cells, and solid oxide ion transport membranes, for providing a means for electrical interconnection between multiple cells, and manifolds for reactant and product streams. The HEED comprises an inner electrode chamber, inner current collector, inner electrode, electrolyte, outer electrode, outer current collector, and outer electrode chamber. The system comprises a plurality of HEED, arranged in a parallel array, mechanically supported by one or more header plates, where a primary header plate encompasses a portion of a gas manifold connected to the inner chamber of the HEED. The HEED pass through the primary header plate, into the primary manifold chamber wherein electronic connections are formed between the inner current collector and outer current collectors of the HEED to allow for series, parallel, or series-parallel electrical configurations. The system is operated such that the temperature and atmosphere surrounding the interconnect assembly in the primary manifold chamber are conducive to the use of metallic interconnect materials. The outer electrode chamber of the HEED is housed in a manifold that may be thermally integrated with a heat exchanger, fuel reformer, tailgas combustor, or auxiliary heat source.04-08-2010
20090191441FUEL CELL - The fuel cell includes a membrane electrode assembly including a cathode catalyst layer, an anode catalyst layer and a proton conducting film provided between the cathode catalyst layer and the anode catalyst layer, a cathode conductive layer electrically connected to the cathode catalyst layer, an anode conductive layer electrically connected to the anode catalyst layer, a liquid fuel storage chamber which contains a liquid fuel, a gas-liquid separation film which selectively transmit a gasified component of the liquid fuel from the liquid fuel storage chamber to the anode catalyst layer, and a gasified fuel storage chamber formed at a section between the gas-liquid separation film and the anode conductive layer, and the distance L07-30-2009
20090191440SOLID OXIDE FUEL CELL - A solid oxide fuel cell has a stack structure in which sheet bodies and separators for separating air and fuel gas are stacked in alternating layers. Each of the sheet bodies includes an electrolyte layer, a fuel electrode layer formed on the upper surface of the electrolyte layer, and an air electrode layer formed on the lower surface of the electrolyte layer, wherein these layers are stacked and fired in such a manner that the electrolyte layer is sandwiched between the fuel electrode layer and the air electrode layer. The thickness of the electrolyte layer is 0.3 μm or more and 5 μm or less, and the electrolyte layer is composed of a single particle of YSZ in the thickness direction. Thus, the electrolyte layer is extremely thin, and further, the grain boundary in the thickness direction is small. Accordingly, the IR loss (electric resistance) of the electrolyte layer can remarkably be reduced.07-30-2009
20090191439Fuel Cell - Oxidation or corrosion of carbon material contained in a cathode due to the reverse current that occurs at the starting of a fuel cell is suppressed. The fuel cell includes a plate-like cell, a separator on one side of the plate-like cell, and a separator on the other side of the plate-like cell. The plate-like cell includes a solid polymer electrolyte membrane, an anode, and a cathode. The anode has a stacked body composed of a catalyst layer and a gas diffusion layer. The cathode has a stacked body composed of a catalyst layer and a gas diffusion layer. The catalyst layer contains a porous carbon material formed with micro pores, which functions as an electric double layer, and an ion-exchange resin. At least part of the porous carbon material supports a catalytic metal such as platinum. The porous carbon material to be used is preferably a carbide-derived carbon. The carbide-derived carbon preferably has micro pores of 1 nm or less.07-30-2009
20090155658ELECTRODE FOR POLYMER ELECTROLYTE FUEL CELL, MEMBRANE/ELECTRODE ASSEMBLY AND PROCESS FOR PRODUCING CATALYST LAYER - To provide an electrode for a polymer electrolyte membrane having high gas diffusion performance, a membrane/electrode assembly, and a process for producing a nonwoven structure for a catalyst layer, which can produce the membrane/electrode assembly inexpensively and easily.06-18-2009
20090130518ELECTROCATALYST FOR FUEL CELL, METHOD OF PREPARING THE SAME AND FUEL CELL INCLUDING AN ELECTRODE HAVING THE ELECTROCATALYST - An electrocatalyst for a fuel cell includes a Pt—Co-based first metal catalyst, a Ce-based second metal catalyst, and a carbon-based catalyst support. A method of preparing the electrocatalyst includes obtaining a mixture of metal oxides from a Pt precursor, a Co precursor, and a Ce precursor; impregnating the mixture of the metal oxides onto a carbon-based catalyst support under hydrogen bubbling; and thermally reducing the resulting product at 200 to 350° C. under a hydrogen atmosphere.05-21-2009
20100119907POLYMER ELECTROLYTE FUEL CELL AND METHOD FOR MEASURING VOLTAGES OF CELLS IN POLYMER ELECTROLYTE FUEL CELL - A polymer electrolyte fuel cell of the present invention includes: plate-shaped cells (05-13-2010
20100112405USING IONOMER TO MILITATE AGAINST MEMBRANE BUCKLING IN THE TENTING REGION - A unitized electrode assembly for a fuel cell comprising an electrolyte membrane, a subgasket, and a sealing bead disposed therebetween is disclosed. The sealing bead adapted to fill a tenting region formed between the membrane and the subgasket to maximize an operating life of the electrolyte membrane by militating against wear of membrane expansion during use of the fuel cell.05-06-2010
20100075190Membrane Electrode Assembly, Manufacturing Method Thereof and Fuel Cell - The present invention prevents a flooding phenomenon by a simple method and receives a relatively small influence by a proton transfer in the catalyst layer so as to provide an MEA having an excellent power generation performance. An MEA of the present invention has an anode catalyst layer and a cathode catalyst layer on surfaces of the polymer electrolyte membrane and catalyst loaded particles are included in the anode catalyst layer and the cathode catalyst layer. It is a feature of the present invention that the cathode catalyst layer has more catalysts in a surface region than in a boundary region with the polymer electrolyte membrane in the thickness direction, whereas the anode catalyst layer has more catalysts in a boundary region than in a surface region in the thickness direction.03-25-2010
20100075188Manufacturing Method of Membrane Electrode Assembly - The present invention provides a manufacturing method of a membrane electrode assembly which makes it possible to produce a polymer electrolyte fuel cell at a high level of productivity. According to the present invention, it is possible to make differences in characteristics between a first catalyst electrode 03-25-2010
20100075187MEMBRANE-MEMBRANE REINFORCING MEMBER ASSEMBLY, MEMBRANE-CATALYST LAYER ASSEMBLY, MEMBRANE-ELECTRODE ASSEMBLY, AND POLYMER ELECTROLYTE FUEL CELL - A membrane-membrane reinforcing member assembly includes: a polymer electrolyte membrane (03-25-2010
20100075189CURRENT COLLECTOR AND FUEL CELL STACK - A current collector and a fuel cell stack are disclosed. The current collector in accordance with an embodiment of the present invention includes: a substrate; a double-side adhesive layer, which is formed on one surface of the substrate; a collecting pattern, which is formed on the other surface of the substrate; and a conductive adhesive layer, which is formed on the collecting pattern. While using the current collector described above, electrical resistance in a fuel cell can be reduced, thus improving the performance of the fuel cell. Moreover, even if the thickness of an endplate is thin, clamping pressure required in the fuel cell can be provided.03-25-2010
20100035113METHOD FOR PRODUCING POLYMER ELECTROLYTE MEMBRANE AND POLYMER ELECTROLYTE MEMBRANE - A method for continuously producing a polymer electrolyte membrane including: 02-11-2010
20090075139NANOPOROUS/MESOPOROUS PALLADIUM CATALYST - The present invention provides a catalytic system comprising a catalyst comprising nanoporous or mesoporous palladium and an ion-exchange electrolyte, processes for manufacturing the catalytic system and catalyst, and processes for oxidising or reducing organic and/or inorganic molecules using the catalyst or catalytic system.03-19-2009
20090197133METHOD FOR PRODUCING FUEL CELL ELECTRODES AND POLYMER ELECTROLYTE FUEL CELLS HAVING FUEL CELL ELECTRODES - It is an objective of the present invention to secure the sufficient presence of a three-phase interface on a carbon carrier, where reaction gas, catalysts, and electrolytes meet so as to improve efficiency of catalysts used. A method for producing a fuel cell electrode is provided, such method comprising the steps of: allowing a carbon carrier having pores to support a catalyst; introducing a functional group serving as a polymerization initiator onto the surface and/or into the pores of the carbon carrier having pores; introducing monomer electrolytes or monomer electrolyte precursors so as to polymerize the monomer electrolytes or the monomer electrolyte precursors using the polymerization initiator as an initiation point; allowing polymers on the catalyst-supporting carrier to be protonated; dehydrating protonated products and dispersing them in water; allowing the dispersion products to be subjected to filter treatment; and preparing a catalyst paste using the obtained catalyst powders and forming the catalyst paste into a given form so as to produce a catalyst layer; and characterized in that perfluorocarbon polymers having sulfonic acid groups are mixed with the catalyst paste when a catalyst layer is produced using the obtained catalyst powder.08-06-2009
20100143761Method for Impregnating a Solid Oxide Fuel Cell Cathode with Silver to Reduce Electrical Resistance - A method for improving performance of an SOFC by impregnation of the cathode with metallic silver. A solution of AgNO06-10-2010
20090155657Hydrogen Permeable Film, and Fuel Battery Using the Same - A hydrogen permeable film (06-18-2009
20100104916Separator for fuel cell, method for producing separator, and solid oxide fuel cell - Gas discharge ports are provided in almost the entire area of a layer surface of a separator, and a gas for reaction is discharged like a shower from the separator toward a power generation cell. The separator is constructed by layering plate-shaped members containing iron-base alloy, nickel-base alloy, or chrome-base alloy as the base material. Silver, silver alloy, copper, or copper alloy is plated on both sides or one side of the base material of the plate-shaped member. The construction above can increase durability of a separator and enables the separator and a solid oxide fuel cell to be stably used for a long period.04-29-2010
20100104912FUEL CELL AND VEHICLE HAVING FUEL CELL - A fuel cell has: an electrolyte; an anode provided on one side of the electrolyte and having a fuel-gas consuming face at which fuel gas is consumed; a cathode provided on the other side of the electrolyte and having an oxidizing-gas consuming face at which oxidizing gas is consumed; and a fuel-gas passage portion forming a passage through which fuel gas is supplied to predetermined regions of the fuel-gas consuming face of the anode. The fuel cell has an operation mode in which almost the entire amount of the supplied fuel gas is consumed at the fuel-gas consuming face of the anode.04-29-2010
20100104914CONTACT ARRANGEMENT AND METHOD FOR ASSEMBLING A FUEL CELL STACK FROM AT LEAST ONE CONTACT ARRANGEMENT - The invention relates to a contact arrangement for a fuel cell stack, especially for an SOFC fuel cell stack, comprising an interconnector arrangement which is arranged to establish an electrically conducting connection via at least one contact element on the anode side and at least one such element on the cathode side between an anode of a first membrane electrode assembly and a cathode of a second membrane electrode assembly. The invention is characterized in that at least one component to be sintered is provided on only one side of the interconnector arrangement, on the side of the interconnector arrangement facing the anode or the one facing the cathode, the component being coupled to the first or second membrane electrode assembly in such a manner that the electrically conducting connection can be established via the contact element on the anode side or via that on the cathode side by sintering the component to be sintered. The invention also relates to a method for assembling a fuel cell stack form at least one such contact arrangement. The invention further relates to a fuel cell stack, especially an SOFC fuel cell stack, comprising said contact arrangement, the fuel cell stack preferably being assembled according to the aforementioned method.04-29-2010
20100104911FUEL CELL - After hydrogen fed from the side part of the bottom plate 04-29-2010
20100104915FUEL CELL COMPRISING OXYGEN ELECTRODE WITH SURFACE NANOSTRUCTURE - The present invention is aimed to realize, in a fuel cell with an oxygen electrode (a catalytic electrode), both catalytic function and immobilization of the catalyst nanoparticles when the catalyst nanoparticles are very small nanoparticles in the size of 1-3 nm.04-29-2010
20100092830ELECTRODE CATALYST FOR A FUEL CELL, AND FUEL CELL USING THE SAME - To provide an electrode catalyst for fuel cells, which is obtained efficiently by a simple process, without using a silica template, unlike in the conventional process, which is relatively large in mesopore diameter (5 nm or more), which enables catalyst particles deposited stably in the mesopores, and which can readily develop a highly triple-phase interface state.04-15-2010
20100092827DIRECT METHANOL FUEL CELL SYSTEM USING SOLID METHANOL, PORTABLE ELECTRONIC DEVICE USING SAME, AND FUEL CARTRIDGE FOR DIRECT METHANOL FUEL CELL SYSTEM - A fuel cartridge has a pair of flat faces in which holes are formed. A net is stretched within the holes, and solid methanol is packed inside the fuel cartridge. A fuel cell unit, shaped as a flat box, comprises a pair of flat wall portions, a pair of long-side wall portions, and a pair of short-side wall portions. Each flat wall portion is provided with two MEAs, as fuel cells that are arranged so that the fuel electrodes (not shown) face inward. One of the long-side wall portions has an opening provided with, on the edge thereof, an elastic packing serving as a sealing member. An opening and closing lid is pivotably provided to the opening by a pivot as a pivot member. The resulting reduced size methanol fuel cell system has sufficient air-tightness and good power generation efficiency, and is simple in structure.04-15-2010
20100092825Fuel cell, fuel cell system, and portable electronic device - There is provided a fuel cell and a fuel cell system with superior power generating capability, with which the occurrence of cross-over can be suppressed and enough fuel to generate power can be fed. A fuel cell is obtained by bringing a solid fuel for a fuel cell or a gelled fuel for a fuel cell into contact with a fuel electrode. By forming the fuel for the fuel cell in a solid state or a gel state, the fuel for the fuel cell is non-fluid and can be accumulated at the fuel electrode, the fuel for the fuel cell does not penetrate an electrolyte membrane, and the occurrence of cross-over can be suppressed. Also, because the surface of the solid fuel for the fuel cell or gelled fuel for fuel cell is in a fuel atmosphere of extremely high concentration, the fuel for the fuel cell required for power generation can be adequately fed to the fuel electrode.04-15-2010
20090181278MICRO FUEL CELL, FABRICATION METHOD THEREOF, AND MICRO FUEL CELL STACK USING THE SAME - A micro cell fuel cell using a nano porous structure according to a thin film process and an anodizing process as a template for implementing a porous structure of an electrode, its fabrication method, and a micro fuel cell stack using the same are disclosed. The micro-fuel cell includes a solid electrolyte and first and second electrodes separately formed on the electrolyte, wherein at least one of the first and second electrodes is supported by a template having a plurality of nano pores formed by depositing, anodizing and etching a thin film, and is a porous electrode with nano pores formed at positions corresponding to the entirety or a portion of the plurality of nano pores formed on the template. The micro-fuel cell can be fabricated based on the thin film process, and unit cells can be highly integrated to implement a micro-fuel cell system generating a high voltage and a high current.07-16-2009
20100068589MEMBRANE-ELECTRODE ASSEMBLY - There is provided a membrane-electrode assembly including catalyst layers disposed on both surfaces of an electrolyte membrane, wherein water transfer resistance of said electrolyte membrane, calculated by the following formula (F1), is 10 μm·g/meq or less and a platinum amount contained in at least one of the catalyst layers is 0.02 to 0.20 mg/cm03-18-2010
20090123803Fuel cell comprising a plurality of individual cells connected in series by current collectors - Adjacent individual cells of a fuel cell are connected in series by intermediate connecting parts. Each connecting part is formed by a branch made from an electrically conducting material and extending the first current collector of a cell perpendicularly and connected to the second current collector of the adjacent cell. Each first current collector is moreover formed by an electrically insulating porous matrix incorporating said electrically conducting material, and the first current collectors of two adjacent cells are separated by an area of electrically insulating porous material, said electrically insulating porous material being identical to that forming the porous matrix of said first current collectors. Series connection between the individual cells of such a fuel cell is thereby easy and quick to implement.05-14-2009
20090042077POLYMER ELECTROLYTE MEMBRANE AND POLYMER ELECTROLYTE FUEL CELL - There are provided a polymer electrolyte membrane having at least one surface with an average surface roughness Ra′ of from 30 nm to 500 nm and a surface area ratio Sr of 1.2 or more in which Sr is defined as S/S02-12-2009
20090325020FUEL CELL - In a polymer electrolyte membrane fuel cell, a groove (cathode-side gas flow path) in a cathode-side separator, and a groove (anode-side gas flow path) in an anode-side separator are formed such that air and hydrogen flow in a direction opposite to the direction of gravity. A surface treatment may applied to the surface of the grooves such that the hydrophilicity is higher on the downstream side than on the upstream side in the grooves.12-31-2009
20100129693Coating process for production of fuel cell components - A method of making a solid oxide fuel cell (SOFC) includes providing a solid oxide electrolyte and depositing at least one electrode on the electrolyte by PVD, such as sputtering. A method of making an interconnect for a fuel cell stack includes providing an electrically conductive interconnect, and depositing a layer on the interconnect by PVD, such as depositing a LSM barrier layer by sputtering. The SOFC and the interconnect may be located in the same fuel cell stack.05-27-2010
20090042076Modified planar cell (MCP) and stack based on MPC - A single cell for a solid oxide fuel cell having wave-like architecture and a stack composed of such single cells is described. The cell design provides high durability. The stack design provides uniform distribution of reagents along the surface of the electrodes and between the individual cells. In addition the stack design is non material intensive.02-12-2009
20090305107FUEL CELL AND METHOD OF PRODUCING THE SAME - A fuel cell includes an anode having a current collector and a catalyst layer formed on the current collector, wherein an aqueous methanol solution is introduced as fuel into the anode, a cathode having a current collector and a catalyst layer formed on the current collector, wherein an oxidizing agent is introduced into the cathode, and an electrolyte membrane interposed between the anode and the cathode in such a manner as to be in contact with each of the catalyst layers. Each of the catalyst layers includes a catalyst, a perfluoroalkylsulfonic acid polymer and a cross-linked polymer of a sulfonic acid type monomer and a carboxylic acid type monomer. The cross-linked polymer is entangled with the perfluoroalkylsulfonic acid polymer.12-10-2009
20090305105Fuel cell and method for manufacturing the same - Disclosed are a fuel cell and a method for manufacturing the fuel cell. The fuel cell can include forming a channel on one surface of a first wafer and one surface of a second wafer, respectively; stacking a membrane electrode assembly on one surface of the first wafer; and coupling the second wafer to the first wafer to allow one surface of the second wafer to cover the membrane electrode assembly, to thereby manufacture the fuel cell in a small size at low cost, precisely form the membrane electrode assembly, and prevent a damage of the membrane electrode assembly.12-10-2009
20090305104POLYMER ELECTROLYTE FUEL CELL - In a polymer electrolyte fuel cell provided with a fuel cell stack assembled by sandwiching a plurality of stacked single cell modules with a plurality of fastening members through a pair of end plates, the fuel cell including a first elastic member arranged between the fastening member and the end plate and a plurality of second elastic members arranged between the end plate and the end of the fuel cell stack, wherein each of the second elastic members is arranged on the surface of the end plate corresponding to the electrode portion of a membrane electrode assembly in each of the single cell module and each of the first elastic members is arranged on the surface of the end plate corresponding to a seal member arrangement region in which seal member is arranged between the periphery of the membrane electrode assembly and a pair of separator plates in each single cell module.12-10-2009
20090305106COATINGS, MATERIALS, ARTICLES, AND METHODS OF MAKING THEREOF - A thermal spray process comprises injecting precursor solution droplets into the hot zone of the thermal spray flame. Also described are materials resulting from the process.12-10-2009
20090305103ELECTROCATALYST FOR ELECTROCHEMICAL CELL, METHOD FOR PRODUCING THE ELECTROCATALYST, ELECTROCHEMICAL CELL, SINGLE CELL OF FUEL CELL, AND FUEL CELL - An electrocatalyst for an electrochemical cell of the present invention includes a metal catalyst containing metal that has a metal oxidation potential of 0.5V or higher to 1.5V or lower, and is directly involved in an electrode reaction. Further, the electrocatalyst includes an aromatic heterocyclic compound having a six-membered cyclic structure containing a heteroatom, wherein the heteroatom has a metal coordination capacity that is not directly involved in the electrode reaction. The aromatic heterocyclic compound is heterogeneously adsorbed and coordinated on a surface of the metal catalyst while interposing the heteroatom therebetween.12-10-2009
20090305102FUEL BATTERY - A fuel battery (12-10-2009
20090092877Solid Oxide Fuel Cell and Manufacturing Method Thereof - A solid oxide fuel cell supplied with a fuel gas and an oxidant gas, including a single cell 04-09-2009
20090092876FUEL CELL - A membrane electrode assembly 04-09-2009
20090092875FUEL CELL, MEMBRANE ELECTRODE ASSEMBLY - An acid resistant composite catalyst comprising dumbbell-shaped composite nanoparticles each comprising a noble metal nanoparticle epitaxially conjugated to a ferrite particle, and/or flower-shaped composite nanoparticles each comprising a noble metal nanoparticle epitaxially conjugated to at least two ferrite particles. The acid resistant composite catalyst is useful to facilitate the reduction of oxygen. The acid resistant composite catalyst can be used in a fuel cell comprising a fuel electrode, an oxygen electrode, and a polymer electrolyte membrane placed between the fuel electrode and the oxygen electrode. The oxygen electrode includes the acid resistant composite catalyst.04-09-2009
20090092874STABLE HYDROPHILIC COATING FOR FUEL CELL COLLECTOR PLATES - One embodiment of the invention includes a product including a fuel cell component including a coating thereon, the coating comprising nanoparticles comprising titanium oxide or titanium containing compounds derived therefrom.04-09-2009
20090297907FUEL CELL SYSTEM AND ELECTRIC EQUIPMENT - A fuel cell system including a humidifying means for directly humidifying a polymer electrolyte membrane that serves as an ionic conductor. The humidifying means has a water holding unit comprised of a water-absorbing material and located in contact with the polymer electrolyte membrane to directly humidify the polymer electrolyte membrane by utilizing capillary action. It also has a humidification water passage comprised of a hydrophilic material and provided in the polymer electrolyte membrane so as to be connected to the water holding unit to humidify the polymer electrolyte membrane rapidly and uniformly. The fuel cell system with such a structure can directly humidify an ionic conductor.12-03-2009
20090280376Solid Oxide Fuel Cell - A solid oxide fuel cell includes an electrolyte layer (11-12-2009
20090269641POROUS MEMBRANE FOR FUEL CELL ELECTROLYTE MEMBRANE AND METHOD FOR MANUFACTURING THE SAME - To obtain a porous membrane for a fuel cell electrolyte membrane, having mechanical property which is equal in the longitudinal and lateral directions. A porous membrane 10-29-2009
20080305376ELECTRODE FOR FUEL CELL AND FUEL CELL EMPLOYING THE SAME - Provided are an electrode for a fuel cell and a fuel cell employing the electrode, the electrode comprising a catalyst layer including: a catalyst; a material having stronger binding force to anions than the catalyst; and a binder. According to the electrolyte for a fuel cell, electrochemical surface area of the catalyst is maximized, and thus efficiencies in oxygen reduction reaction (ORR) and hydrogen oxidation reaction (HOR) of the catalyst are improved. Thus, a fuel cell having improved power generation efficiency may be prepared by employing the electrode.12-11-2008
20090233136MEMBRANE ELECTRODE ASSEMBLY FOR FUEL CELL - The present invention provides a method of preventing liquid fuel that has penetrated from an anode from reaching a cathode and of effectively utilizing a cathode catalyst, which provides a membrane electrode assembly for fuel cell having high output density. In a membrane electrode assembly for fuel cell including an anode formed of a catalyst and a solid polymer electrolyte, a cathode formed of a catalyst and a solid polymer electrolyte, and a solid polymer electrolyte membrane formed between the anode and the cathode, an intermediate layer is formed between the cathode and the electrolyte membrane.09-17-2009
20090233139FUEL CELL STACK - A coolant inlet manifold for coolant supply passages is attached to an end plate of a fuel cell stack. Pillars are provided on at least one end of the coolant inlet manifold in a longitudinal direction thereof. The pillars are fitted into through holes formed in the end plate, and are connected to a manifold body and to a connector.09-17-2009
20090233137Cell unit for a fuel cell and method for manufacturing the same - A cell unit for a fuel cell and a method for manufacturing the cell unit for a fuel cell are disclosed. The cell unit for a fuel cell can include an electrolyte membrane, an electrode unit that includes an anode formed on one side of the electrolyte membrane and a cathode formed on the other side of the electrolyte membrane, and a porous current collector formed by coating a conductive material onto the porous surfaces of the electrode unit.09-17-2009
20090047561METHOD OF MAKING FUEL CELL DIFFUSION LAYER AND FUEL CELL DIFFUSION LAYER - A method of making a fuel cell diffusion layer includes the steps of: (a) preparing an ink by dispersing a carbon powder and an ion conductor in a solvent; and (b) forming the fuel cell diffusion layer by coating the ink on a substrate through an ink-jet process. By so doing, it is possible to impart desired properties to the fuel cell diffusion layer.02-19-2009
20090047560FUEL CELL - The invention relates to a fuel cell including a plurality of catalyst layer electrodes disposed as each catalyst layer electrode of an anode and a cathode in parallel on substantially the same plane and each having a shape with a specified aspect ratio, a liquid fuel impregnation layer laminated on the liquid fuel receiving chamber side of a vapor-liquid separating membrane, and a liquid fuel supply frame laminated on the liquid fuel receiving chamber side of the liquid fuel impregnation layer and formed with single or a plurality of fuel supply ports which supply the liquid fuel to the liquid fuel impregnation layer that is formed at the position corresponding to substantially the same position of the anode catalyst layer electrode.02-19-2009
20090239118CATALYST LAYER FOR SOLID POLYMER FUEL CELL, MEMBRANE ELECTRODE ASSEMBLY, AND FUEL CELL - A catalyst layer of a solid polymer fuel cell includes a catalyst structural body, a membrane present on at least part of a surface of the catalyst structural body and including a first water-repellent material having a functional group, particles having a second water-repellent material, and an electrolyte.09-24-2009
20090011314Electrode/electrolyte interfaces in solid oxide fuel cells - A solid oxide fuel cell (SOFC) with reduced electrical resistance and greater vacancy density control is provided. The SOFC includes an interfacial layer deposited, preferably by atomic layer deposition (ALD), between an electrode layer and an electrolyte layer. The interfacial layer includes an ion-conductive material. By use of ALD, the interfacial layer can have a very small thickness and can include layered structures of alternating materials. The interfacial layer can also include doping gradient structures of doped ion-conductive materials. Ultra-thin film platinum layers for high current density and cermet layers at the electrode/electrolyte interface are also provided.01-08-2009
20090011313Fuel cell system - A fuel cell includes a fuel case, a fuel distribution layer, an anode gas diffusion layer, a membrane electrode assembly comprised of an anode, a cathode and an electrolyte membrane interposed between the anode and the cathode, and a cathode gas diffusion layer. The fuel stored in the fuel case is distributed into the anode gas diffusion layer through the fuel distribution layer. The fuel in the anode gas diffusion layer is diluted by water generated in and transported from the cathode electrode layer. The anode gas diffusion layer is thick so that the fuel may be uniformly diluted. The fuel cell may use high concentration fuel so that the fuel cell can increase efficiency and output.01-08-2009
20090011312FUEL CELL AND SYSTEM - A the fuel cell that uses a highly concentrated fuel, comprising: a cathode electrode layer; an electrolyte membrane disposed on the cathode layer; an anode electrode layer disposed on the electrolyte membrane; an anode gas diffusion layer disposed on the anode electrode layer; a cathode gas diffusion layer formed thinner than the anode gas diffusion layer on the other surface of the cathode electrode layer; and a porous plate-shaped piezoelectric layer formed on one surface of the anode gas diffusion layer.01-08-2009
20090011310BIPOLAR PLATE WITH MICROGROOVES FOR IMPROVED WATER TRANSPORT - One embodiment of the invention comprises a fuel cell bipolar plate comprising a substrate comprising a first face, a reactant gas flow field defined in the first face, the reactant gas flow field comprising a plurality of lands and channels, and a plurality of microgrooves formed in the first face.01-08-2009
20090011309Fuel Cell - A fuel cell includes an electrolyte membrane (01-08-2009
20090011311CATHODE CATALYST FOR FUEL CELL, METHOD OF PREPARING SAME, AND MEMBRANE-ELECTRODE ASSEMBLY COMPRISING SAME - The cathode catalyst for a fuel cell includes an RuSe alloy having an average particle size of less than or equal to 6 nm. The cathode catalyst may also include a metal carbide. The RuSe alloy is a highly active amorphous catalyst.01-08-2009
20090136816HOLLOW CAPSULE STRUCTURE AND METHOD OF PREPARING THE SAME - A hollow capsule structure and a method of preparing the same are disclosed. The hollow capsule structure may include a shell with nanopores. The nanopores may be spherical nanopores. The hollow capsule structure may include pores connected to one another with excellent electronic conductivity and a large specific surface area. In addition, the hollow capsule structure may be configured to can easily transfer mass due to a capillary phenomenon of the nanopores in the shell. As a result, the hollow capsule structure may be configured for use with a catalyst supporter, a supporter for growing carbon nanotubes, an active material, a conductive agent, a separator, a deodorizer, a purifier, an adsorption agent, a material for a display emitter layer, a filter and the like.05-28-2009
20080292932SOLID OXIDE FUEL CELL - A fuel cell has a stack structure in which fired sheet bodies (laminates each including a fuel electrode layer, a solid electrolyte layer, and an air electrode layer) and support members for supporting the sheet bodies are stacked in alternating layers. Each of the sheet bodies is warped downward (toward an air-electrode-layer side). Because of a magnitude relationship of thermal expansion coefficient among the layers in the sheet body and that between the support member and the sheet body, a warp height gradually lessens in the course of temperature rise at start-up. However, even when a working temperature (800° C. or the like) is reached, the sheet bodies are still warped downward. By virtue of presence of the warp, the sheet bodies become unlikely to be deformed at the working temperature.11-27-2008
20090220837SOLID OXIDE ELECTROCHEMICAL CELL AND PROCESSES FOR PRODUCING THE SAME - A hydrogen electrode constituted of a mixed phase composed of an oxide sinter having particles of at least one member selected from Ni, Co, Fe, and Cu on a surface part thereof and coated wholly or partly with a film having mixed conductivity and a sinter having ionic conductivity is formed on a surface of an electrolyte having oxygen ion conductivity.09-03-2009
20080274388Solid Oxide Type Fuel Cell - It is possible to improve the power generation efficiency by uniformalizing the temperature distribution of a fuel cell stack in lamination direction. In a solid oxide type fuel cell, a power generation cell and a separator are alternately laminated so as to constitute a fuel cell stack. On the middle stage of the fuel cell stack in the lamination direction, a radiator (11-06-2008
20080299432Fuel Cell System for the Supply of Drinking Water and Oxygen - The present invention provides a fuel cell system for the supply of a vehicle with drinking water and oxygen, said fuel cell system comprising a fuel cell and an electrolysis cell with air cathode. In addition, the electrolysis cell is coupled to the fuel cell, and the fuel cell and the electrolysis cell are designed in such a way that a power requirement of the electrolysis cell is completely covered by a power delivery from the fuel cell.12-04-2008
20090246586FILM ELECTRODE ASSEMBLY FOR FUEL CELL, POLYMER ELECTROLYTIC CELL FOR FUEL CELL AND METHOD FOR MANUFACTURING POLYMER ELECTROLYTIC FUEL CELL AND FILM ELECTRODE ASSEMBLY - There is provided a film electrode assembly for a fuel cell capable of preventing a polymer electrolyte film from being exposed. The film electrode assembly includes: a main body portion of a film electrode assembly having a polymer electrolyte film, and a pair of electrode layers having catalyst layers placed on the two surfaces of the polymer electrolyte film on the inner side from the peripheral edge portion thereof and diffusion layers each having a peripheral edge protruding from the catalyst layer, which are laminated on one another, with a gap being formed between the protruding portion of the diffusion layer and the peripheral edge portion of the polymer electrolyte film; a frame member that sandwiches the peripheral edge portion of the polymer electrolyte film between the paired electrode layers with a gap therebetween, and is formed so as to surround an outer edge of the polymer electrolyte film; and gaskets made of a thermoplastic resin, which are placed on the two surfaces of the frame member. Each gasket includes an annular portion that covers the peripheral edge portion of the main body portion of the film electrode assembly over the entire circumference thereof along the inner edge of the frame member and a gap filling portion that fills the gap.10-01-2009
20080248357Fuel cell seal and fuel cell - A fuel cell seal includes: a first seal member having a first protrusion in a major surface thereof; and a second seal member having a recess in a major surface thereof. The recess is engageable with at least part of the first protrusion. A fuel cell includes: a solid electrolytic film; a first and second seal member placed on both major surface sides of the solid electrolytic film, respectively, and opposed to each other; a fuel electrode placed on a side of the first seal member, the side being opposite to the solid electrolytic film; and an oxidizer electrode placed on a side of the second seal member, the side being opposite to the solid electrolytic film. One of the first and the second seal members has a first protrusion. Other of the first and the second seal members has a recess engageable with at least part of the first protrusion. The first and the second seal members are engaged with each other across the solid electrolytic film.10-09-2008
20090087711FUEL CELL ELECTRODE, FUEL CELL, AND FUEL CELL STACK - This invention provides an electrode for a fuel battery, which can improve both current collection properties and oxidizing gas and/or fuel feedability by allowing produced water to be more easily removed, and a cell for a fuel battery, and a stack for a fuel battery. The electrode for a fuel battery comprises a net material (04-02-2009
20080292933FUEL CELL MEMBRANE ELECTRODE ASSEMBLY WITH HIGH CATALYST EFFICIENCY THEREOF - A membrane electrode assembly of a fuel cell comprises a proton exchange membrane, two metal-carbon (carbon supported metal) catalyst layers, two gas diffusion layers and at least two metal catalyst layers. The proton exchange membrane is at the center of the membrane electrode assembly, the two metal-carbon catalyst layers are located on both sides of the proton exchange membrane. The two gas diffusion layers are on both outer surfaces of the membrane electrode assembly. The metal catalyst layers are located at the interface between the proton exchanged membrane and the metal-carbon catalyst layer and/or at the interface between the metal-carbon catalyst layer and the gas diffusion layer. The combinations of metal-carbon catalyst and metal-catalyst layers reduce the thickness of catalyst layer and maintain a high catalysis activity, and thus improve the fuel cells performance.11-27-2008
20090068525Fuel Cell Electrode, Method for Producing Fuel Cell Electrode, Membrane-Electrode Assembly, Method for Producing Membrane-Electrode Assembly, and Solid Polymer Fuel Cell - With the use of a fuel cell electrode in which a binder layer (buffer layer) containing a thickening agent is provided on a gas diffusion layer and an electrode catalyst layer containing catalyst particles and a polymer electrolyte is laminated on the binder layer (buffer layer), it is possible to provide: a fuel cell electrode in which the adhesivity between a gas diffusion layer made of carbon paper or carbon cloth and an electrode catalyst layer containing catalyst particles and a polymer electrolyte is improved and delamination of or crack generation in an electrode catalyst layer does not occur; a membrane-electrode assembly (MEA) comprising the fuel cell electrode; and a solid polymer fuel cell comprising the membrane-electrode assembly.03-12-2009
20090169946Ultrasonically Welded Fuel Cell Unitized Electrode Assembly - A unitized electrode assembly (07-02-2009
20090291346SOLID OXIDE REVERSIBLE FUEL CELL WITH IMPROVED ELECTRODE COMPOSITION - A solid oxide electrolyzer cell or a solid oxide reversible fuel cell includes a solid oxide electrolyte. It may also include at least one of a first gadolinia doped ceria interfacial layer in contact with a first side of the electrolyte and a second gadolinia doped ceria interfacial layer in contact with a second side of the electrolyte. It may also include a fuel electrode including a cermet containing nickel and one or both of a doped zirconia and gadolinia doped ceria. It may also include an oxidant electrode including an LSM and one or both of a doped zirconia and gadolinia doped ceria.11-26-2009
20090169943SOLID ELECTROLYTE MULTILAYER MEMBRANE, METHOD AND APPARATUS OF PRODUCING THE SAME, MEMBRANE ELECTRODE ASSEMBLY, AND FUEL CELL - First, second and third dopes (07-02-2009
20090130514Membrane electrode assembly for fuel cell, method of producing same, and fuel cell - Provided is a membrane electrode assembly for a fuel cell which comprises a polymer electrolyte 05-21-2009
20090162721FUEL CELL MEMBRANE-ELECTRODE ASSEMBLY AND PRODUCTION METHOD THEREFOR - A fuel cell membrane-electrode assembly having a fuel electrode and an oxidant electrode has a non-supported-catalyst containing catalyst layer that contains a metal catalyst nanoparticle of 0.3 nm to 100 nm in primary particle diameter that is not supported on a support, and an electrochemically active surface area of the metal catalyst nanoparticle is 10 m06-25-2009
20090297906FUEL CELL AND METHOD OF PRODUCING THE FUEL CELL - A unit cell of a fuel cell includes an electrolyte electrode assembly, a pair of separators sandwiching the MEA, and a buffer layer at least provided between the MEA and at least one of the separators. The buffer layer is made of porous body formed by melting inorganic powder. A buffer layer precursor contains the inorganic powder and an organic material, and the organic material is vaporized from the buffer layer precursor to obtain the buffer layer. The buffer layer fills clearance between projections of the separator and the anode or the cathode, and tightly contacts the projections of the separator and the anode or the cathode.12-03-2009
20100035111FUEL CELL - Provided is a fuel cell including an electrolyte allowing an anion component to migrate; a fuel-side electrode and an oxygen-side electrode being arranged in opposed relation to each other while sandwiching the electrolyte; a fuel supplying material for supplying fuel to the fuel-side electrode; and an oxygen supplying material for supplying oxygen to the oxygen-side electrode, in which the oxygen-side electrode and/or the fuel-side electrode contain(s) a transition metal, and at least one of a complex-forming organic compound and an electrically-conductive polymer.02-11-2010
20100035109Fuel cell systems with increased floor density - A method of operating a fuel cell-based power generation system includes providing a plurality of fuel cell systems, each system including a plurality of fuel cell modules, and moving at least one fuel cell module of a fuel cell system with respect to a fuel cell module of another system.02-11-2010
20090233138Membrane Electrode and Current Collecting Board Assembly of Electrochemical Cell, and Electrochemical Cell Module - The invention discloses an assembly of a membrane electrode and a current collecting board used for an electrochemical cell, the assembly comprising a membrane layer, a gas diffusion layer on the one side and a layer of porous current collecting board on the one side which are stacked in sequence and wherein the gas diffusion layer on the one side is located between the porous current collecting board on the one side and the membrane. The area surrounding the periphery of the gas diffusion layer on the one side is filled with sealing material which is cured subsequently. The invention further discloses an electrochemical cell module comprising at least one electrochemical single cell which includes an end plate with gas channels, an assembly therefor, and an end plate with gas channels on the other side which are stacked in sequence. When compared with the prior art, this assembly provides a simpler structure and assembly process, thereby decreasing production cost when used on a large scale. Meanwhile, it also improves the effective available area of the membrane electrode. This assembly is also suitable for use in the production of fuel cells, electrolytic cells, regenerative fuel cells and electrochemical oxygen generators.09-17-2009
20090286122Composite Membranes and Their Use in Electrochemical Cells - A composite membrane suitable for use in an electrochemical cell, comprises layers of a hydrophilic material and of a second material having relatively high conductivity and which is also relatively susceptible to dehydration.11-19-2009
20090098434FUEL CELL AND METHOD FOR PRODUCING THE SAME - A fuel cell including a separator (04-16-2009
20090098431METHOD OF PRODUCING FUEL CELL SEPARATOR, AND FUEL CELL - The present invention provides a method of producing a fuel cell separator in which at least a portion of a premolded article composed of a thermosetting resin and a carbon material, or a thermoplastic resin and a carbon material is provided with hydrophilicity, including the steps of: (1) treating the premolded article for enhancing affinity with a solution of a radically polymerizable monomer having a hydrophilic group and/or a functional group which can be converted into a hydrophilic group; (2) coating the solution of the radically polymerizable monomer having a hydrophilic group and/or a functional group which can be converted into a hydrophilic group, on the treated surface; (3) irradiating the treated surface with ionizing radiation; and (4) cleaning the fuel cell separator obtained through steps 1 to 3; wherein steps 1 to 4 are sequentially carried out, or step 1, step 3, step 2, and step 4 are sequentially carried out.04-16-2009
20090098433Solid oxide fuel cell and separator - A solid oxide fuel cell is formed by arranging a fuel electrode layer and an air electrode layer on both surfaces of a solid electrolyte, respectively, a fuel electrode current collector and an air electrode current collector outside the fuel electrode layer and the air electrode layer, respectively, and separators outside the fuel electrode current collector and the air electrode current collector. In a first embodiment, a fuel gas and an oxidant gas are supplied from the separators to the fuel electrode layer and the oxidant electrode layer, respectively, through the fuel electrode current collector and the air electrode current collector, respectively. Each separator is formed by laminating a plurality of thin metal plates at least including a thin metal plate in which a first gas discharge opening is arranged in a central part and second gas discharge openings are circularly arranged in a peripheral part, and a thin metal plate with an indented surface. Gases discharged from the separators can be supplied to entire areas of the electrode layers through the current collectors, so that electric power generation can be performed.04-16-2009
20090226786FUEL CELL - The present invention is concerned with a fuel cell comprising: an electrolyte layer defining first and second faces and with said first face mounted on and in electrochemical contact with a first electrode and with said second face mounted on and in electrochemical contact with a second electrode, and an electrically conductive current collector joined to or mounted on or in said second electrode and in electrical contact with said second electrode, said electrically conductive current collector having an at least one extension extending outwards of a perimeter defined by said first and second electrodes and said electrolyte, fuel cell stack assemblies comprising same and methods of manufacture of same.09-10-2009
20090162720FLUID TRANSFER DEVICE, AND FUEL CELL AND ELECTRONIC APPARATUS USING THE SAME - A fluid transfer device according to the present invention is intended to cause a fluid to travel along a channel (06-25-2009
20090162715Polyisobutylene compositions with improved reactivity and properties for bonding and sealing fuel cell components - An electrochemical cell, such as a fuel cell, having improved sealing against leakage includes (a) a first electrochemical cell component having a mating surface; (b) a cured sealant composition adhesively bonded to the mating surface of the first electrochemical cell component and (c) a second electrochemical cell component, having a mating surface abuttingly disposed over the cured sealant composition, The cured sealant composition includes an alkenyl terminated diallyl polyisobutylene oligomer, a silyl hardener having at least one hydrogen atom bonded to a silicon atom, a hydrosilylation catalyst and, optionally, a polyfunctional alkenyl monomer.06-25-2009
20090325022METHOD OF MANUFACTURING A MEMBRANE-ELECTROLYTE ASSEMBLY FOR FUEL CELLS, AND MEMBRANE-ELECTROLYTE ASSEMBLY - A method of manufacturing a membrane-electrolyte assembly by a solution three-layer coating method enables the manufacture of a membrane-electrolyte assembly having a high generation efficiency in which the seeping of the electrolyte solution into the pores in the catalyst layer is prevented. The method comprises performing the application of individual inks and drying treatment for a first catalyst layer 12-31-2009
20090325021CATHODE FOR FUEL CELL - A cathode for a fuel cell is provided, which includes an electrode catalyst layer. This electrode catalyst layer is constituted by a carried catalyst including a conductive carrier and catalytic fine particles carried on the conductive carrier, by a proton-conductive inorganic oxide containing an oxide carrier and oxide particles carried on a surface of the oxide carrier, and by a proton-conductive organic polymer binder. The carried catalyst is incorporated therein at a weight of W12-31-2009
20090325019IN SITU FUEL CELL CONTAMINATION SAMPLING DEVICE - A filtration device for a fuel cell system is provided. The filtration device includes a filter adapted to receive a reactant for a fuel cell. The filter includes a molecular sieve material adapted to separate a contaminant from the reactant supplied to the fuel cell. A membrane electrode assembly having the filter integrally formed therewith, and a fuel cell stack having the filter disposed adjacent at least one of the end plates of the fuel cell stack, are also provided.12-31-2009
20100112406ULTRASONICALLY ENHANCED FUEL CELL SYSTEMS AND METHODS OF USE - A fuel cell system comprises at least one fuel source (e.g., methanol or methanol solution) In a storage tank, tubes and/or flow channels that provide the fuel to the fuel cells via tubes and/or flow channels, which are used to connect the different fuel cells and/or supply the fuel to all or some of the fuel cells, one or more ultrasonic transducers, which are set inside or are associated with the tubes and/or flow channels through which the fuel (e.g., methanol or methanol solution) is supplied to the fuel cells. The transducers can optionally be integrated with the tubes and/or flow channels of the fuel cell systems. The ultrasonic transducers are able to generate high frequency vibration, and the fuel is able to transmit the high-frequency vibration through the liquid fuel body, to increase the performance of the fuel fed fuel cell system.05-06-2010
20090117433Gas Diffusion Electrode Material and Production Method Thereof - A gas diffusion electrode material of the present invention includes: a porous body (05-07-2009
20090081514REACTOR AND SOLID OXIDE FUEL CELL - In a solid oxide fuel cell, air supplied from the outside through an air supply port Pain firstly flows through an air supply channel Hain in the downward direction to flow in air channels Sa. The air flowing into the air channels Sa flows through the air channels Sa in the lateral direction to flow out to an air discharge channel Haout. The air flowing out to the air discharge channel Haout flows through the air discharge channel Haout in the upward direction to be discharged to the outside from an air discharge port Paout. When a pressure loss ratio ΔPc/ΔPm, which is a ratio of a pressure loss ΔPc of air generated in the air channel Sa to the pressure loss ΔPm of air generated in the air supply channel Hain (or the air discharge channel Haout) during the operation of a fuel cell (at working temperature), is within 1 to 2500, the flow rate of the air flowing into each air channel can be equalized as much as possible, thereby being capable of preventing the reduction in the output.03-26-2009
20090142640CARBON-TITANIUM OXIDE ELECTROCATALYST SUPPORTS FOR OXYGEN REDUCTION IN PEM FUEL CELLS - A high surface area support material is formed of an intimate mixture of carbon clusters and titanium oxide clusters. A catalytic metal, such as platinum, is deposited on the support particles and the catalyzed material us as an electrocatalyst in an electrochemical cell such as a PEM fuel cell. The composite material is prepared by thermal decomposition and oxidation of an intimate mixture of a precursor carbon polymer, a titanium alkoxide and a surfactant that serves as a molecular template for the mixed precursors.06-04-2009
20090148739DIRECT METHANOL FUEL CELL - A direct methanol fuel cell includes a cathode catalyst layer; an electrolyte membrane; an anode catalyst layer; a first fuel control layer that is water-repellent and conductive and that has pores; a second fuel control layer that is water-repellent and conductive and that has larger pores than the those of the first fuel control layer; a third fuel control layer that is water-repellent and conductive and that has smaller porous than those of the first fuel control layer and those of the second fuel control layer; and an anode GDL layer that is water-repellent and conductive, wherein the membrane and the layers above are arranged in the above order.06-11-2009
20090053573Fuel cell - The invention provides a fuel cell comprising one or more cells (02-26-2009
20090233140DIRECT METHANOL FUEL CELL - A direct methanol fuel cell comprises a multiple number of connected unit cells, each composed of a fuel electrode element of a microporous carbon material, an electrolyte layer formed on the outer surface of the fuel electrode element, an air electrode layer formed on the outer surface of the electrolyte layer, wherein each unit cell is supplied with fuel from a fuel reservoir through a fuel feeder having an infiltration structure coupled therebetween.09-17-2009
20080292934POROUS COMPOSITE PRODUCT FOR THE PRODUCTION OF A CATALYTIC LAYER, IN PARTICULAR IN FUEL CELL ELECTRODES - A composite product is for an electrode of a fuel cell including a catalyst, an electrically conductive phase which supports such catalyst, a protonically conductive phase, and a porous phase. At least the contact between the catalyst and the electrically and protonically conductive phases, and preferably also the contact of the porous phase with the catalyst and with the electrically and protonically conductive phases, is improved or maximized. Each of the phases is individually continuous, and such phases are continuous with each other.11-27-2008
20080268315FUEL CELL STACK - A fuel cell stack includes a plurality of membrane electrode assemblies (MEAs) and a stamped metal separator. The metal separator is positioned between the membrane electrode assemblies. The separator includes at least one channel on both surfaces of the separator formed by a stamping process. The separator comprises a plurality of holes, each of which form a manifold communicating with each the channels.10-30-2008
20100055528FUEL CELL SYSTEM - Disclosed is a fuel cell system. The fuel cell system in accordance with an embodiment of the present invention includes a membrane electrode assembly including a fuel electrode, an air electrode, and an electrolyte layer interposed between the fuel electrode and the air electrode; a separator including a channel that is adjacent to the fuel electrode and is provided for supplying hydrogen to the fuel electrode; a hydrogen supply device supplying hydrogen to the channel; and a relief valve formed on the channel and controlling pressure of the channel.03-04-2010
20100143760INHIBITOR FOR PREVENTION OF BRAZE MIGRATION IN SOLID OXIDE FUEL CELLS - During manufacture of an SOFC assembly, an inhibitor is included to prevent migration of silver braze during subsequent use of the SOFC assembly. The inhibitor may take any of several forms, either individually or in combination. Inhibitors comprehended by the present invention include, but are not limited to: a) a mechanical barrier that can be printed or dispensed onto one or more SOFC stack elements around the braze areas to prevent mechanically-driven migration; b) an electrically insulating feature in the electrolyte or interlayer over the electrolyte layer in the seal margins to prevent electrical potential-driven migration; and 3) chemical modification of the braze itself as by addition of an alloying metal such as palladium.06-10-2010
20090023033HIGHLY HYDROPHILIZED CARRIER, CATALYST-SUPPORTING CARRIER, FUEL-CELL ELECTRODE, THE MANUFACTURING METHODS THEREOF, AND POLYMER ELECTROLYTE FUEL CELL PROVIDED THEREWITH - A method for manufacturing a catalyst-supporting carrier composed of a catalyst-supporting carbon and a polyelectrolyte, and including a carbon having pores to support a catalyst, introducing a functional group functioning as a polymerization initiator to the surface and/or in the pores of the catalyst-supporting carbon, introducing an electrolyte monomer and thereby grafting it onto the catalyst supporting carbon carrier for polymerizing by radical polymerization, and hydrolyzing at least part of the polymerized polyelectrolyte by a strong alkali. By using this catalyst-supporting carrier, electrode reaction is effectively facilitated, and the fuel-cell electrical efficiency can be improved. Further, an electrode having excellent properties and a polymer electrolyte fuel cell provided with such electrode and capable of obtaining high cell output are provided.01-22-2009
20090023030Manufacturing Method of Anode for Solid Oxide Fuel Cell, Anode, and Solid Oxide Fuel Cell - The present invention relates to a manufacturing method of an anode for a solid oxide fuel cell (SOFC), an anode, and a SOFC, in which an anode is formed by stacking sheets having a plurality of holes, and the holes are used as gas diffusion paths through which fuel gas can be facilely diffused, and some of the holes are filled with a reinforcement member or a current collecting member, thereby improving a cell strength and increasing a current collecting performance and thus an efficiency of the SOFC.01-22-2009
20090081513GAS DIFFUSION LAYER, FUEL CELL, METHOD FOR MANUFACTURING GAS DIFFUSION LAYER, AND METHOD FOR MANUFACTURING FUEL CELL - A gas diffusion layer to be provided on an air electrode of a fuel cell, the gas diffusion layer includes: a portion to be at a relatively high temperature; and a portion to be at a relatively low temperature. Gas permeability of the portion to be at a relatively high temperature is different from gas permeability of the portion to be at a relatively low temperature.03-26-2009
20090291345MEMBRANE/ELECTRODE ASSEMBLY FOR POLYMER ELECTROLYTE FUEL CELLS, POLYMER ELECTROLYTE FUEL CELL, AND PROCESSES FOR THEIR PRODUCTION - To provide a membrane/electrode assembly for polymer electrolyte fuel cells, a polymer electrolyte fuel cell and processes for their production, which make it possible to stably exhibit a high power generation performance in various environments. A membrane/electrode assembly for polymer electrolyte fuel cells, which comprises a first electrode having a first catalyst layer and a first gas diffusion layer, a second electrode having a second catalyst layer and a second gas diffusion layer, and a polymer electrolyte membrane disposed between the first electrode and the second electrode, wherein the 90° peel strength at least one of the interface between the first electrode and the polymer electrolyte membrane and the interface between the second electrode and the polymer electrolyte membrane is at least 0.03 N/cm.11-26-2009
20090087712Fabrication method of thin film solid oxide fuel cells - A silicon-based solid oxide fuel cell (SOFC) with high surface area density in a limited volume is provided. The structure consists of a corrugated nano-thin film electrolyte and a silicon supportive layer on a two-stage silicon wafer through-hole to maximize the electrochemically active surface area within a given volume. The silicon supportive layer is done by boron-etch stop technique with diffusion doping. The fabrication of two-stage wafer through hole combines deep reactive ionic etching (DRIE) and KOH wet etching of silicon for a wafer through hole containing two difference sizes. By these design and fabrication methods, the absolute electrochemically active area can be as high as five times of that of the projected area.04-02-2009
20100086822FUEL CELL ELEMENTS - There is provided a fuel cell element including a substrate and one or more fuel cells thereon, the one or more fuel cells not entirely covering the substrate. The one or more fuel cells each include a solid state, non-polymeric first electrode layer, a solid state, non-polymeric second electrode layer, and a solid state, non-polymeric electrolyte layer between the first and second electrode layers. The substrate includes one or more porous regions, or being entirely porous, the one or more fuel cells each being supported by one or more porous regions of the substrate. At least one, or part of one, of the porous regions of the substrate are not sealed by electrolyte. Arrays of fuel cell elements of the invention are also provided, as are stacks of fuel cell elements or arrays of the invention.04-08-2010
20090202883Catalyst-Polymer Liquid Dispersion For Fuel Cell Applications - Catalyst-polymer liquid dispersion (LD) comprising (i) catalyst particles, (ii) polymer particles consisting of at least one (per)fluoro sulfonyl fluoride polymer in the —SO08-13-2009
20100086821ELECTRODE FOR POLYMER ELECTROLYTE MEMBRANE FUEL CELL, MEMBRANE-ELECTRODE ASSEMBLY, AND METHODS FOR MANUFACTURING THE SAME - The present invention provides a method for manufacturing a membrane-electrode assembly (MEA) which is a core element of a polymer electrolyte membrane fuel cell for a vehicle and an electrode therefor. The method for manufacturing an MEA of the present invention is implemented to provide a highly-concentrated catalyst slurry which is uniformly dispersed, compared to conventional catalyst slurries, by a catalyst slurry manufacturing process including a vacuum defoaming process.04-08-2010
20090053572PEM FUEL CELL WITH IMPROVED WATER MANAGEMENT - A product including a polymer electrolyte membrane, an electrode over the membrane, a gas diffusion media layer over the electrode, and a hydrophilic layer over the gas diffusion media layer.02-26-2009
20100086823MEMBRANE-ELECTRODE ASSEMBLY AND FUEL BATTERY USING THE SAME - A membrane-electrode assembly, containing an electrode catalyst containing a base metal complex, in which exchange current density i04-08-2010
20100098993IMPERMEABLE POROUS SUBSTRATE FOR PLANAR FUEL CELLS AND INTEGRATED PACKAGING - The present invention relates to a support for a planar fuel cell core, produced using a material permeable to the fuel of the cell, and sealed over at least one of its outer faces.04-22-2010
20100098989ELECTRODE-MEMBRANE-FRAME ASSEMBLY FOR POLYELECTROLYTE FUEL CELL, MANUFACTURING METHOD THEREFOR, AND POLYELECTROLYTE FUEL CELL - In a solid polyelectrolyte fuel cell, with a frame including a frame body main part placed along a peripheral edge portion of a membrane, a plurality of first retaining portions which are arrayed so as to protrude from an inner edge of the frame body main part and which retain the front surface side of the membrane, and a plurality of second retaining portions which are arrayed so as to protrude from the inner edge of the frame body main part and which retain the back surface side of the membrane, the first retaining portions and the second retaining portions are so arrayed that retaining positions of the membrane by the first retaining portions and retaining positions of the membrane by the second retaining portions are alternately placed. A plurality of front-surface side elastic members are placed on the front surface of the membrane between neighboring ones of the first retaining portions while a plurality of back-surface side elastic members are placed on the back surface of the membrane between neighboring ones of the second retaining portions.04-22-2010
20100081026CASSETTES FOR SOLID-OXIDE FUEL CELL STACKS AND METHODS OF MAKING THE SAME - Solid-oxide fuel cell (SOFC) stack assembly designs are consistently investigated to develop an assembly that provides optimal performance, and durability, within desired cost parameters. A new design includes a repeat unit having a SOFC cassette and being characterized by a three-component construct. The three components include an oxidation-resistant, metal window frame hermetically joined to an electrolyte layer of a multi-layer, anode-supported ceramic cell and a pre-cassette including a separator plate having a plurality of vias that provide electrical contact between an anode-side collector within the pre-cassette and a cathode-side current collector of an adjacent cell. The third component is a cathode-side seal, which includes a standoff that supports a cathode channel spacing between each of the cassettes in a stack. Cassettes are formed by joining the pre-cassette and the window frame.04-01-2010
20090081515SUPPORTED CATALYST, METHOD FOR MANUFACTURING SUPPORTED CATALYST, FUEL CELL, AND METHOD FOR MANUFACTURING FUEL CELL - A supported catalyst includes: a particulate first carbon material; and a particulate second carbon material supporting a catalyst, having a smaller center particle diameter than the first carbon material, and adsorbed on a surface of the first carbon material.03-26-2009
20090263699DIAPHRAGM FOR SOLID POLYMER FUEL CELL AND MEMBRANE-ELECTRODE ASSEMBLY - The present invention discloses a membrane for polymer electrolyte fuel cell, which comprises 10-22-2009
20090263698FUEL CELL SYSTEM AND FUEL CELL - A fuel cell system which allows uniform fuel distribution to respective fuel cells, comprising: a plurality of fuel cells 10-22-2009
20090263697FUEL CELL - A fuel cell stack includes a plurality of cells each including an MEA 10-22-2009
20100124686Method of Manufacturing a Membrane Electrode Assembly, Membrane Electrode Assembly and Fuel Cell - The present invention provides an MEA which improves water retention properties of an electrode catalyst layer without inhibiting diffusion of a reaction gas and drainage of water produced by an electrode reaction etc. One aspect of the present invention is a manufacturing method of an MEA which includes coating and drying a catalyst ink to form a first electrode catalyst sub-layer, coating and drying a catalyst ink to form a second electrode catalyst sub-layer, and forming the first and the second electrode catalyst sub-layers on a polymer electrolyte membrane in this order, and has a specific feature that a solvent removal rate in drying to form the first electrode catalyst sub-layer is higher than that in drying to form the second electrode catalyst sub-layer.05-20-2010
20100098990FUEL CELL, AND METHOD AND APPARATUS FOR ASSEMBLING FUEL CELL - The present invention relates to: a fuel cell which includes a stack part (04-22-2010
20100098992PROCESS FOR THE FORMATION OF PORES IN A POLYMER MATRIX - The invention relates to a process for the formation of pores of controlled shape, dimensions and distribution in a polymer matrix comprising a step of embedding silicon nanowires and/or nanotrees in a nonpolymerized polymer matrix or a nonpolymerized polymer matrix in suspension or in solution in at least one solvent, a step of curing the polymer matrix, and a step of removing the silicon nanowires and/or nanotrees by chemical treatment. The process of the invention can be used for the manufacture of a proton exchange membrane fuel cell active layer. The invention has applications in the field of manufacture of proton exchange membrane fuel cells, in particular.04-22-2010
20100098988MEMBRANE ELECTRODE MODULE AND ASSEMBLY METHOD THEREOF - A membrane electrode module is provided. The membrane electrode module includes a membrane electrode assembly, a first fixing element and a second fixing element. The membrane electrode assembly includes an exchange-membrane, a first electrode and a second electrode. The exchange-membrane includes a first surface and a second surface. The first electrode is disposed on the first surface. The second electrode is disposed on the second surface. The first fixing element contacts the first surface. The second fixing element contacts the second surface, wherein the first fixing element and the second fixing element are joined to the exchange-membrane via heat-pressing to be fixed to the exchange-membrane.04-22-2010
20090142638COMPOSITE POROUS MEMBRANE, METHOD FOR PRODUCING COMPOSITE POROUS MEMBRANE, SOLID POLYMER ELECTROLYTE MEMBRANE, AND FUEL CELL - It is intended to provide a composite porous membrane comprising a fibrous filler-containing polymer film or sheet, characterized by having a large number of pores with an exposed fibrous filler formed by irradiation with an ultra-short pulse laser with a pulse width of 1006-04-2009
20090239114POLYMER ELECTROLYTE FUEL CELL - A polymer electrolyte fuel cell which has a polymer electrolyte membrane, an anode disposed on one side of the polymer electrolyte membrane and a cathode disposed on the other side of the polymer electrolyte membrane, wherein an organic fuel is supplied to the anode, and wherein the anode has an anode catalyst layer containing a catalyst and a proton-conducting material, and the cathode has a cathode catalyst layer containing a catalyst, a proton-conducting material and an oxygen-permeating material.09-24-2009
20090169949ELECTRODE INKS CONTAINING COALESCING SOLVENTS - A catalyst ink is provided comprising: a) solids, comprising: i) a catalyst material, and ii) a polymer electrolyte; b) an aqueous solvent; and c) a coalescing solvent. In some embodiments, the coalescing solvent is selected from the group consisting of alkanes, alkenes, amines, ethers, and aromatic compounds which may optionally be substituted. In some embodiments, the coalescing solvent is selected from the group consisting of partially fluorinated alkanes, partially fluorinated tertiary amines, fully fluorinated alkanes and fully fluorinated tertiary amines. In another aspect, the present disclosure provides a fuel cell membrane electrode assembly comprising a catalyst layer comprising a coalescing solvent. In another aspect, the present disclosure provides a method of making a fuel cell membrane electrode assembly comprising a step of applying a catalyst ink according to the present disclosure to one or more of: a) a polymer electrolyte membrane, and b) a porous, electrically conductive gas diffusion layer.07-02-2009
20090169941Direct liquid fuel cell - A direct liquid fuel cell is disclosed and wherein the fuel cell includes an anode fluid diffusion layer positioned adjacent to the anode side of the membrane electrode assembly, and which consists of, at least in part, a porous electrically conductive ceramic material which is substantially devoid of predetermined fluid passageways. A source of an aqueous hydrocarbon fuel solution is coupled in direct fluid flowing relation relative to the anode fluid diffusion layer, and the anode fluid diffusion layer substantially evenly distributes the aqueous hydrocarbon fuel solution across the active area surface of the anode side of the membrane electrode assembly.07-02-2009
20090274941Power Generation Cell for Solid Electrolyte Fuel Cell and Structure of Fuel Electrode Thereof - The present invention provides a power generation cell for a solid electrolyte fuel cell using a lanthanum gallate solid electrolyte as a solid electrolyte, particularly a structure of a fuel electrode of the power generation cell for the solid electrolyte fuel cell. The fuel electrode according to the first aspect of the present invention is a fuel electrode of a power generation cell for a solid electrolyte fuel cell in which particles (2) of a B-doped ceria (herein, B represents one or two or more of Sm, La, Gd, Y and Ca) are attached to the surface of the framework of porous nickel having a framework structure in which a network is formed by mutual sintering of nickel particles (1). The ceria particles (2) are distributed with the highest density and attached around the framework structure portions (3) the sectional areas of which are made small by the mutual sintering of the nickel particles (1) to be bonded to each other.11-05-2009
20080274387Method for Producing Gas Diffusion Electrode and Method for Producing Polymer Electrolyte Fuel Cell, and Gas Diffusion Electrode and Polymer Electrolyte Fuel Cell - The present invention provides a gas diffusion electrode capable of sufficiently preventing not only degradation of MEA during storage but also degradation of initial characteristics and durability during the time period from production to initial use, and a polymer electrolyte fuel cell including the gas diffusion electrode. The gas diffusion electrode includes a catalyst layer in which A11-06-2008
20090286123POLYMER ELECTROLYTE FUEL CELL AND MANUFACTURING METHOD FOR ELECTRODE-MEMBRANE-FRAME ASSEMBLY - In a manufacturing method for an electrode-membrane-frame assembly in a fuel cell, a first frame member and an electrolyte membrane member are arranged in a first mold for injection molding such that the edge of the electrolyte membrane member is arranged on the first frame member, a second mold is arranged to form a resin flow passage for forming a second frame member which is in contact with the first frame member by interposing the electrolyte membrane member, and a part of the edge of the electrolyte membrane member is pressed and fixed to the first frame member by a presser member mounted on the second mold and a molding resin material is injected into the resin flow passage to form a second frame member.11-19-2009
20090087710Bipolar unit for fuel cell provided with porous current collectors - The invention describes a bipolar unit consisting of a pair of metal plates at least one of which is corrugated, fixed by continuous and hydraulically impervious connections, and provided on the external surfaces thereof with porous electric current collectors also suitable for the distribution of the gaseous reactants. The collector facing the plate corrugations is interpenetrated therein, thereby achieving a continuous contact. Two bipolar units of the invention and one interposed MEA element are assembled to form an elementary fuel cell with an improved electric current distribution. Furthermore the channels formed between the mutually contacting surfaces of the plate pair by the corrugations of at least one of the plates of each bipolar unit, are crossed by a coolant allowing to optimally adjust the cell operative temperature.04-02-2009
20080206619Fuel cell and method for connecting current connectors thereto - In a planar-array cell structure, an area required by interconnectors is reduced and a fuel cell is made further compact. A connection part which connects adjacent cells in series is provided within a sealing member provided in a peripheral edge part of an electrolyte membrane where multiple cells are formed in a planar arrangement. For each cell, an anode terminal of a current collector is disposed counter to a cathode terminal of the current collector via the electrolyte membrane. The connection part penetrates the electrolyte membrane and connects the anode terminal of one of the adjacent cells to the cathode terminal of the other of the adjacent cells.08-28-2008
20080206615GAS DIFFUSION LAYER WITH CONTROLLED DIFFUSIVITY OVER ACTIVE AREA - A diffusion medium for use in a PEM fuel cell comprising a thin perforated layer having variable size and frequency of perforation patterns incorporated into a microporous layer on a first side of a porous substrate layer, wherein the diffusion medium is adapted to improve water management and performance of the fuel cell.08-28-2008
20080206614Solid-Electrolyte Fuel Cell And Stack Structure - For an enhanced rigidity and suppressed occurrences of stress concentration, a solid-electrolyte fuel cell is configured with simplex cells, a metallic separator of a circular thin-sheet form having a gas introducing port and gas discharging ports in the central portion, and cell mounting parts for the simplex cells to be fixed thereto, another metallic separator of a circular thin-sheet form having a gas introducing port and gas discharging ports in the central portion, the separators defining a space in between, and a pair of flow channel members accommodated in the space and pressed to be brought into abutment, for communication of their channels with the gas introducing ports and the gas discharging ports to effect gas supply and gas discharge to and from the space, either flow channel member being joined, within the space, to one separator.08-28-2008
20080206616CATALYST COATED MEMBRANES AND SPRAYABLE INKS AND PROCESSES FOR FORMING SAME - The invention is directed to highly porous catalyst coated membranes and to sprayable inks and processes for forming catalyst coated membranes. In one aspect, the invention is to a sprayable ink, comprising catalyst particles, polymer electolyte ionomer, and a vehicle for dispersing the catalyst particles and polymer electolyte ionomer. In another aspect, the process comprises the steps of depositing an ink comprising catalyst particles and a vehicle onto a membrane and vaporizing from 40 to 95 weight percent of the vehicle from the sprayed ink under conditions effective to form a catalyst layer on the membrane. Preferably, the depositing and vaporizing steps are alternated to form multiple stacked catalyst layers on the membrane.08-28-2008
20090274942POLAR PLATE, PARTICULARLY END PLATE OR BIPOLAR PLATE FOR A FUEL CELL - The invention relates to a polar plate (11-05-2009
20090104498ELECTRODE CATALYST LAYER FOR USE IN FUEL CELL - An electrode catalyst layer for use in a fuel cell, the layer having a composite particle material in which catalyst particles are supported on conductive particles, a proton conductive polymer and a metal oxide, wherein said metal oxide is non-particulate.04-23-2009
20090104499FUEL CELL POWER GENERATING SYSTEM AND METHOD OF MANUFACTURING THE SAME - A fuel cell system has a membrane electrode composite including an anode, cathode and an electrolyte membrane sandwiched between the anode and the cathode. A lyophobic porous member is located adjacent to the anode, and an anode channel plate is also located adjacent to the porous member. A gas recovery channel and a fuel supply channel are formed in the anode channel plate, gas generated at the anode side is recovered in the gas recovery channel and a liquid fuel is supplied to the anode through the fuel supply channel. The generating system also includes a circulating system along which the fuel circulates, and a fuel supply section that supplies fuel to the circulating system.04-23-2009
20090104497FUEL ELECTRODE CATALYST, METHOD FOR PRODUCING FUEL ELECTRODE CATALYST, FUEL CELL, AND METHOD FOR PRODUCING FUEL CELL - A fuel electrode catalyst includes: a solid solution of platinum (Pt) and molybdenum (Mo), a crystal structure of the solid solution being a face-centered cubic structure, and a component ratio of the molybdenum (Mo) in the solid solution being from 10 atom % (at %) to 20 atom % (at %), and a method for producing a fuel electrode catalyst, includes: generating platinum hydrate and molybdenum oxide from chloroplatinic acid (H04-23-2009
20090104496Methanol Fuel Cells - The present invention relates to direct and reformate methanol fuel cells containing an anode comprising semiconductor layers. A semiconductor layer, preferably silicon or silicon carbide, is overlaid with a TiO04-23-2009
20090280377DIRECT OXIDATION FUEL CELL - The direct oxidation fuel cell of the invention includes at least one unit cell, the unit cell including: a membrane-electrode assembly including an anode, a cathode, and an electrolyte membrane interposed therebetween; an anode-side separator; and a cathode-side separator. The cathode includes a first cathode catalyst layer, a diffusion layer being in contact with the cathode-side separator, and an intermediate layer disposed therebetween. The intermediate layer includes a second cathode catalyst layer and a porous composite layer, the porous composite layer containing a hydrophobic material and an electron-conductive material. The anode-side separator has a fuel flow channel, and the cathode-side separator has an oxidant flow channel. At least a portion of the intermediate layer facing the upstream portion of the fuel flow channel includes the second cathode catalyst layer, and at least portions of the intermediate layer facing the midstream and downstream portions of the fuel flow channel include the porous composite layer.11-12-2009
20090280378MEMBRANE AND ELECTRODE ASSEMBLY AND METHOD FOR PRODUCING THE SAME - Provided is a membrane and electrode assembly excellent in adhesion between the electrolyte membrane and the catalyst layer. A membrane and electrode assembly comprising an electrolyte membrane and an electrode comprising a catalyst layer on at least one surface of the electrolyte membrane, wherein the electrolyte membrane contacts the catalyst layer via an ion-exchangeable polymer obtained by subjecting polymerizable monomers to surface graft polymerization.11-12-2009
20090286120CASING FOR FUEL BATTERY AND FUEL BATTERY USING THE SAME - This invention provides a casing for storing MEA, which has satisfactory corrosion resistance to formic acid produced in an electrode reaction of MEA. There is also provided a casing formed of a material having the lowest possible specific gravity that can apply a suitable pushing pressure to MEA and a current collector without increasing the thickness dimension and is suitable for a power supply mounted, for example, in small portable electronic equipment. The casing is a casing for use in a fuel battery in which a hydrogen electrode, an oxygen electrode, and a film-electrode joint product formed of a proton conductive film held between the hydrogen electrode and the oxygen electrode are housed within the casing and, in removing water produced in an oxygen electrode reaction, the above water comes into contact with the casing. The casing for a fuel battery comprises a base material (11-19-2009
20090291344FUEL CELL - On an anode side separator, an adhesive is applied linearly along the upper and lower edges of the four edges thereof, around a receiving part and around a through-hole and so on. On a cathode side separator, the adhesive is applied at the same locations as on the anode side separator. The adhesive functions as support members for supporting the fastening load on the edges of the separators.11-26-2009
20090017357DIRECT OXIDATION FUEL CELL AND METHOD FOR OPERATION THEREOF - The invention relates to a method for operating a direct oxidation fuel cell in which at least one fluid fuel is transported from a fuel reservoir via a fluid distribution structure to a membrane electrode assembly, the transport of the fuel being effected passively, i.e. without convection. Furthermore, the invention relates to a corresponding direct oxidation fuel cell.01-15-2009
20090169948MEMBRANE-ELECTRODE ASSEMBLY FOR DIRECT OXIDATION FUEL CELL AND DIRECT OXIDATION FUEL CELL - A membrane-electrode assembly for a direct oxidation fuel cell includes an electrolyte membrane, and an anode and a cathode sandwiching said electrolyte membrane. The cathode includes a catalyst layer in contact with the electrolyte membrane and a diffusion layer formed on the catalyst layer, and the catalyst layer contains 2 to 20% by volume of pores. A direct oxidation fuel cell including this membrane-electrode assembly has excellent power generating performance and durability.07-02-2009
20090169942Physical Vapor Deposited Nano-Composites for Solid Oxide Fuel Cell Electrodes - Thin-film composite materials with nanometer-scale grains comprise a thin-film layer that includes at least an electronic and an ionic conductor, and can be porous and/or resistant to redox-degradation. The thin-film composite materials can be formed by simultaneous co-deposition of at least an electronic and an ionic conductor onto a substrate using physical vapor deposition methods. Sacrificial materials can be co-deposited with the electronic and ionic conductors and subsequently removed from the thin-film layer to form a network of pores in the thin-film layer, that is, a porous thin-film composite material. A solid oxide fuel cell comprises an anode, an electrolyte and a cathode, wherein the anode and cathode are independently a thin-film composite material and the electrolyte is a thin-film material. Particularly, redox-degradation resistant thin-film composite materials can be used both as anodic and cathodic electrodes, which allows fabrication of fuel cell stacks with symmetric thermo-mechanical properties, thereby increasing mechanical stability. The nanometer-scale grain size and intimate phase mixing in these composites leads to increased reaction kinetics, and therefore is expected to yield increased power output from fuel cell stacks employing these thin-film composite materials.07-02-2009
20090169947Fuel Cell Comprising an Assembly Capable of Managing the Water Generated by Said Cell - Water produced in a fuel cell is managed and/or regulated by an assembly comprising at least one hydrophobic element and a hydrophilic element. The hydrophilic element is in contact with at least one first area of an outer surface of the cathode. The hydrophobic element covers the whole of a face of the hydrophilic element opposite the outer surface of the cathode and comprises at least one through opening releasing an area of said face of the hydrophilic element.07-02-2009
20080241623Passive Recovery of Liquid Water Produced by Fuel Cells - Passive recovery of liquid water from the cathode side of a polymer electrolyte membrane through the design of layers on the cathode side of an MEA and through the design of the PEM, may be used to supply water to support chemical or electrochemical reactions, either internal or external to the fuel cell, to support the humidification or hydration of the anode reactants, or to support the hydration of the polymer electrolyte membrane over its major surface or some combination thereof. Such passive recovery of liquid water can simplify fuel cell power generators through the reduction or elimination of cathode liquid water recovery devices.10-02-2008
20080241625Solid oxide fuel cell stack - A solid oxide fuel cell stack includes a plurality of fuel cells, each having a cylindrical shape, a conductive member via which the fuel cells are electrically coupled, and a holding member surrounding the fuel cells and the conductive member. The holding member includes a pressing portion which presses the fuel cells and the conductive member in an electrically serial direction, and a fixing portion which fixes the pressing portion such that the fuel cells and the conductive member are constantly pressed.10-02-2008
20090035639Fuel cell module - A fuel cell module includes a cell unit including an electrolyte membrane, a cathode disposed on one face of the electrolyte membrane, and an anode disposed on the other face of the electrolyte membrane, and a water reservoir which stores water produced at the cathode. The water reservoir includes an opening formed in a region other than the cathode of the cell unit, and a projection projecting from the opening to an anode side. The water covering a cathode surface of a fuel cell is reduced.02-05-2009
20090035638FUEL CELL MODULE - A fuel cell module includes an integral anode plate, a cathode plate, an array membrane electrode assembly (array MEA) and a pre-molded adhesive plate. The integral anode plate includes a flow board. A recess is disposed on a side of the flow board for accommodating a bendable lug of a unitary anode charge collector. The bendable lug is electrically connected to a cathode charge collector on the cathode board. The array MEA includes a plurality of MEA units and a proton exchange membrane. The pre-molded adhesive plate has openings for accommodating corresponding MEA units. The pre-molded adhesive plate has an intermediate rigid frame sandwiched between two adhesive layers.02-05-2009
20090169950PRODUCTION OF CATALYST COATED MEMBRANES - Disclosed is process for the production of catalyst coated membranes, and catalyst coated membranes having a first electrode that is visually more reflective than the second electrode. The catalyst coated membranes are useful in electrochemical cells, and especially in fuel cells.07-02-2009
20090169944FUEL CARTRIDGE FOR FUEL BATTERY AND FUEL BATTERY USING THE SAME - A fuel cartridge (07-02-2009
20080286625SOLID STATE ELECTROCHEMICAL CELL HAVING RETICULATED ELECTRODE MATRIX AND METHOD OF MANUFACTURING SAME - A solid state electrochemical cell comprises a dense electrolyte layer; at least one reticulated electrode matrix (REM) of ion-conducting material partially sintered on the gas impermeable electrolyte layer, and electrode material located substantially within the REM. The REM has a majority of pores with an average pore size of less than micron. The REM can also have a porosity of 5 to 80%, thickness at or below 3.00 microns, and a mean grain size of 0.01 to 3.00 microns.11-20-2008
20080286626BIS(ARYL)SULFONIMIDE FUNCTIONALIZED ION CONDUCTING POLYMERS - The invention provides ion conducting copolymers containing pendant bis(aryl)sulfonimide groups that are used to make 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
20080311455Solid oxide fuel cell components tuned by atomic layer deposition - A reduced cost solid oxide fuel cell having enhanced surface exchange rates and diffusivity of oxide ions is provided. The invention cell includes a first porous electrode and a second porous electrode, where the porous electrodes have a layer of electronically conductive porous non-precious metal, and the porous non-precious metal layer is a gas diffusion layer. The porous electrodes further include at least one atomic layer of catalytic metal deposited on the non-precious metal layer, and an electrolyte layer disposed between the first porous electrode and the second porous electrode. The electrolyte layer includes a first dense ion-conductive doped oxide film layer, and a second dense ion-conductive doped oxide film layer deposited on the first doped oxide film layer, where the catalytic metal layer on the conductive porous non-metal layer enhances surface exchange rates and diffusivity of the oxide ions, thus the material costs of the fuel cell are reduced.12-18-2008
20080299435Fuel cell - A membrane electrode assembly is used for a planer type fuel cell. The membrane electrode assembly includes an electrolyte membrane, anodes and cathodes disposed counter to the anodes. Ends of current collectors are connected to one side of the anodes, respectively. Ends of current collectors are connected to one side of the cathodes, respectively. On a cathode side, the current collectors are provided in positions opposed respectively to the insulators provided on an anode side with the electrolyte membrane interposed in between. A cathode-side current collection and an anode-side current collector are connected by an interconnector, and adjacent cells are electrically connected in series with each other.12-04-2008
20080311456PORTABLE DEVICE, CASE FOR PORTABLE DEVICE, AND FUEL CELL STRUCTURE - A fuel cell is disposed inside a camera housing in the vicinity of a front panel, an upper panel, and a side panel in parallel with the respective panels. The invention provides broader cell area and adequate power can be supplied reliably.12-18-2008
20080241624FUEL CELL DEVICE - A fuel cell device is provided that may remove water that has been generated on the surface of a cathode. When the display member of a mobile phone is opened, a shutter member slides from a protection position to an open position. A water absorbing block is thereby moved toward a protrusion portion while contacting the surface of a cathode of a fuel cell, absorbing and removing water that has accumulated on the surface of the cathode. The water absorbing block is moved along the surface of the cathode by simply opening and closing the mobile phone in this manner, and the water that has been generated on the surface of the cathode may be absorbed and removed.10-02-2008
20080206617Fuel Cell Separators - The disclosure relates to fuel cell systems including a multiplicity of unit fuel cells arranged in a stack, with each unit fuel cell separated by an electrode separator assembly. Each unit fuel cell includes a membrane electrode assembly with an anode, a cathode, and a solid polymer electrolyte membrane disposed between the anode and the cathode. An anode separator is positioned between each membrane electrode assembly of adjoining unit fuel cells within the stack in contact with an anode, and a cathode separator is positioned between each membrane electrode assembly of adjoining unit fuel cells within the stack in contact with a cathode. A surface of an anode separator is joined to a surface of a cathode separator of an adjoining unit fuel cell to form an electrode separator assembly. The disclosure also relates to a method of making a fuel cell assembly.08-28-2008
20080268317POLYMER ELECTROLYTE MEMBRANE, MEMBRANE ELECTRODE ASSEMBLY, AND FUEL CELL - Provided are a polymer electrolyte membrane, which includes an ion conductive domain having high continuity and a non-ion conductive domain and has a high strength, and a membrane electrode assembly and a fuel cell each using the polymer electrolyte membrane. The polymer electrolyte membrane includes a block copolymer having an ion conductive block and a non-ion conductive block and has a micro-phase separation structure constituted of an ion conductive domain including the ion conductive block and a non-ion conductive domain including the non-ion conductive block.10-30-2008
20090092878CURRENT-COLLECTING COMPOSITE PLATE FOR FUEL CELL AND FUEL CELL FABRICATED USING SAME - A current-collecting composite plate for a fuel cell configured with unit cells according to the present invention, which comprises: an insulator layer; and a plurality of pairs of conductor layers, the conductor layers being bonded to the insulator layer to be spaced apart from each other by a predetermined distance, each pair being used for adjacently disposed anode and cathode electrodes for a different one of the unit cells by sandwiching an electrolyte assembly therebetween. And, each conductor layer includes: a first conductor layer of a corrosion resistant metal treated with an electrically conductive surface treatment; a second conductor layer of a metal with low electrical resistivity; a through-hole penetrating the first conductor layer and the insulator layer; and a connecting portion formed of the second conductor layer for connecting the unit cells.04-09-2009
20090053574FUEL CELL SYSTEM - A fuel cell system with reduced volume through decreasing the thickness of a stack comprises: a stack which comprises a plurality of membrane electrode assemblies stacked so that the cathode electrodes face each other and the anode electrodes face each other, and separators that are interposed between the membrane electrode assemblies, and which have a flow path passing through from a first face to a second face on a region corresponding to a region where each cathode electrode or anode electrode is formed.02-26-2009
20090181276METHOD OF MAKING A PROTON EXCHANGE MEMBRANE USING A GAS DIFFUSION ELECTRODE AS A SUBSTRATE - One embodiment includes a method comprising providing a first catalyst coated gas diffusion media layer, depositing a wet first proton exchange membrane layer over the first catalyst coated gas diffusion media layer to form a first proton exchange membrane layer; providing a second catalyst coated gas diffusion media layer; contacting the second catalyst coated gas diffusion media layer, or second proton exchange membrane layer, with the first proton exchange membrane layer; and hot pressing together the catalyst coated diffusion layers and proton exchange membrane layer(s).07-16-2009
20090181277MEMBRANE-MEMBRANE REINFORCING MEMBER ASSEMBLY, MEMBRANE-CATALYST LAYER ASSEMBLY, MEMBRANE-ELECTRODE ASSEMBLY, AND POLYMER ELECTROLYTE FUEL CELL - A membrane-membrane reinforcing member assembly (07-16-2009
20100143762Method for Improving Robustness of Solid Oxide Fuel Cell Stacks - A method for forming a solid oxide fuel cell stack from a plurality of individual solid oxide fuel cells, wherein the anodes of the solid oxide fuel cells are infiltrated by one or more materials for making the anodes less sensitive to sulfur poisoning and/or less subject to carbon degradation and/or for improving the electrochemical performance of the stack, the method comprising the steps of oxidizing the anodes of the individual solid oxide fuel cells before forming a stack, building a solid oxide fuel cell stack with all of the anodes in an oxidized state, reducing all of the anodes, and then infiltrating all of the anodes with at least one of the materials.06-10-2010
20090181274Electrodes for Lanthanum Gallate Electrolyte-Based Electrochemical Systems - An electrochemical cell is disclosed in one embodiment of the invention as including an oxygen electrode and a solid oxide electrolyte coupled to the oxygen electrode to transport oxygen ions. A hydrogen electrode is coupled to the solid oxide electrolyte and contains nickel combined with a material tending to reduce the reactivity of the nickel with the solid oxide electrolyte. In selected embodiments, the solid oxide electrolyte is lanthanum gallate. Similarly, the material combined with the nickel may be an oxide such as magnesium oxide.07-16-2009
20090181275MEMBRANE WITH OPTIMIZED DIMENSIONS FOR A FUEL CELL - A UEA for a fuel cell having an active region and a feed region is provided. The UEA includes an electrolyte membrane disposed between a pair of electrodes. The electrolyte membrane and the pair of electrodes is further disposed between a pair of DM. The electrolyte membrane, the pair of electrodes, and the DM are configured to be disposed at the active region of the fuel cell. A barrier film coupled to the electrolyte membrane is configured to be disposed at the feed region of the fuel cell. The dimensions of the electrolyte membrane are thereby optimized. A fuel cell having the UEA, and a fuel cell stack formed from a plurality of the fuel cells, is also provided.07-16-2009
20090181279FUEL FOR FUEL CELL, AND FUEL CELL SYSTEM - Fuel for a fuel cell includes a main fuel that includes at least hydrogen and carbon, and a fuel additive formed of a hydrogen-containing compound that has a redox potential lower than that of hydrogen. A fuel cell system includes an electrolyte, an anode arranged on one side of the electrolyte and a cathode arranged on the other side of the electrolyte, and a fuel supply source that supplies the main fuel and the fuel additive.07-16-2009
20090029215ION-EXCHANGE MEMBRANES STRUCTURED IN THE THICKNESS AND PROCESS FOR MANUFACTURING THESE MEMBRANES - Monolayer ion-exchange membrane structured in the thickness comprising ion-exchange sites covalently bonded to a support polymer, the membrane comprising two surface zones located on either side of a mid-zone, each surface zone having a thickness of not more than 15% of the total thickness of the membrane, in which the surface zones have a mean ion-exchange site density D01-29-2009
20090162716Method of Manufacturing Fuel Cell - A method of manufacturing a fuel cell is comprising: a hydrogen permeable membrane forming step of forming a second hydrogen permeable membrane on a first hydrogen permeable membrane; and an electrolyte layer forming step of forming an electrolyte layer on the second hydrogen permeable membrane. In this case, it is possible to form the electrolyte layer having few defects. Adhesiveness is therefore improved between the electrolyte layer and the second hydrogen permeable membrane. Accordingly, a separation is restrained between the electrolyte layer and the second hydrogen permeable membrane.06-25-2009
20090162722ELECTROCHEMICAL CELL ASSEMBLIES INCLUDING A REGION OF DISCONTINUITY - Embodiments of the invention relate to electrochemical cell assemblies in which a region of discontinuity provides separation and insulation between adjacent cells in an array.06-25-2009
20090136814FUEL CELL AND ELECTROLYTE LAYER FOR FUEL CELL - A fuel cell includes an ion-conductive electrolyte layer 05-28-2009
20090297905Large Cathode Membrane Electrode Assembly - A membrane electrode assembly includes a polymer electrolyte membrane sandwiched between an anode catalyst layer and a cathode catalyst layer. The area of the anode catalyst layer is less than the area of the cathode catalyst layer. The larger cathode catalyst layer is believed to increase collection of protons from the anode reaction, reduce the corrosive effect of the highly acidic solvated protons in the polymer electrolyte membrane, and allow for small misalignments of the layers during construction of the assembly.12-03-2009
20090297904SOFC Stack - The invention relates to a SOFC stack with bipolar plates (12-03-2009
20090136813Fuel Cell - The present invention provides a highly efficient fuel cell having a fuel reformer which can efficiently recover the exhaust heat from fuel cell stacks and can realize high conversion. In a fuel cell (05-28-2009
20090136810Fuel Cell - The invention aims at providing a platinum black material, without using an expensive and rare material, which is excellent in CO poisoning inhibiting effect, H05-28-2009
20090136815SENSOR FUEL CELL - The invention relates to a sensor fuel cell that can be activated by a first substance (O05-28-2009
20090136811MEA, MEA Manufacturing Method, and Polymer Electrolyte Fuel Cell - An MEA having an MEA body part 05-28-2009
20090186248FUEL CELL ANODE STRUCTURE FOR VOLTAGE REVERSAL TOLERANCE - An anode catalyst layer for a fuel cell is presented having first and second catalyst compositions and a hydrophobic binder. The first catalyst composition includes a noble metal, other than Ru, on a corrosion-resistant support material; the second catalyst composition contains a single-phase solid solution of a metal oxide containing Ru. The through-plane concentration of ionomer in the catalyst layer decreases as a function of distance from the membrane interface. Gas diffusion electrodes, catalyst-coated membranes, MEAs and fuel cells having the foregoing anode catalyst layer are also described.07-23-2009
20090004524FUEL CELL - A fuel cell including at least a fuel cell module is provided. The fuel cell module has a membrane electrode assembly (MEA), two base plates, an anode current collector and a cathode current collector. The two base plates are disposed on two opposite sides of the MEA to clamp the edge of the MEA. The anode current collector and the cathode current collector are respectively assembled in the central area of the MEA. Moreover, the cathode current collector protrudes from the corresponding base plate. Water produced by the cathode in the present invention flows out through the edge of the cathode current collector so as to improve electricity generation efficiency.01-01-2009
20080318105Fuel Cell Assembly - A fuel cell assembly comprising a fuel cell incorporated in a composite laminate structure, the composite laminate structure comprising a core material within which the fuel cell is embedded. The fuel cell comprises an electrolytic membrane having first and second faces, and first and second electrodes disposed adjacent to the respective faces of the electrolytic membrane. The first and second electrodes are connectable to an electric circuit. The core material provides support to the fuel cell embedded therein and fluid communication through the core material, to enable the passage of one or more fluids to the first and second electrodes.12-25-2008
20090208804Polymer electrolyte emulsion and use thereof - Provided is a polymer electrolyte emulsion, wherein a polymer electrolyte particle is dispersed in a dispersing medium, a zeta potential at the measurement temperature of 25° C. being in a range of −50 mV to −300 mV.08-20-2009
20090208803FLOW FIELD FOR FUEL CELL AND FUEL CELL STACK - A flow field design for fuel cell is disclosed which optimizes water management for local operating conditions where the depth profile of the flow field varies from the reactant inlet to the reactant outlet and also varies across the flow field.08-20-2009
20090325023Repetition Unit for a Stack of Electrochemical Cells, Stack Arrangements And Method for Production of Repetition Unit - The present invention relates to a repetition unit for a stack of electrochemical cells comprising a cathode-electrolyte-anode unit as well as a first layer and at least one further layer of an interconnector plate contacting it, wherein the first layer is made from sheet metal and is in electrical contact with the cathode-electrolyte-anode unit, while the at least one further layer is omitted in an active region, wherein furthermore the at least one further layer comprises an unshaped planar material and the first layer is also unshaped in a marginal region surrounding the active region and the cathode-electrolyte-anode unit and wherein all the named layers of the interconnector plate are soldered to one another in the marginal region. The invention furthermore relates to a corresponding stack arrangement of electrochemical cells as well as to a method for the manufacture of such a repetition unit.12-31-2009
20090325024PROTON EXCHANGE MEMBRANE FUEL CELL - An exemplary proton exchange membrane fuel cell includes a light-pervious first end plate, a second end plate, a light-pervious first bipolar plate, a second bipolar plate, and a membrane electrode assembly. The light-pervious first bipolar plate is arranged adjacent to the first end plate and capable of transmitting light having a given wavelength therethrough. The second bipolar plate is capable of having oxidant fed therein. The membrane electrode assembly includes a proton exchange membrane, and an anode and a cathode arranged at opposite sides of the proton exchange membrane. The anode is capable of having fuel fed therein, and includes a first catalyst layer containing photo-catalyst and noble metal such that the light is capable of activating the first catalyst layer to dissociate the fuel thereon.12-31-2009
20090081511Electrode Catalyst for Fuel Cell - An object of the present invention is to provide an electrode catalyst which is excellent in catalyst performance compared with a conventional electrode catalyst. It is also an object of the present invention to provide an electrode composition for fuel cell and a polymer electrolyte fuel cell using the electrode catalyst. The fuel cell electrode catalyst of the present invention is characterized in that a catalyst component is supported on a carrier having a specific feature.03-26-2009
20090098432Flow Distributor Plate - The present invention relates to a flow distributor plate comprising an electronically conductive region perforated by a plurality of apertures (04-16-2009
20090053575SUPPORTED CATALYSTS FOR THE ANODE OF A VOLTAGE REVERSAL TOLERANT FUEL CELL - In a solid polymer fuel cell series, various circumstances can result in a fuel cell being driven into voltage reversal. For instance, cell voltage reversal can occur if that cell receives an inadequate supply of fuel. In order to pass current, reactions other than fuel oxidation may take place at the fuel cell anode, including water electrolysis and oxidation of anode components. The latter may result in significant degradation of the anode, particularly if the anode employs a carbon black supported catalyst. Such fuel cells can be made more tolerant to cell reversal by using higher catalyst loading or coverage on the anode catalyst support or a more oxidation resistant anode catalyst support, such as a more graphitic carbon or Ti02-26-2009
20100003569CHALCOGEN CATALYSTS FOR POLYMER ELECTROLYTE FUEL CELL - A methanol-tolerant cathode catalyst and a membrane electrode assembly for fuel cells that includes such a cathode catalyst. The cathode catalyst includes a support having at least one transition metal in elemental form and a chalcogen disposed on the support. Methods of making the cathode catalyst and membrane electrode assembly are also described.01-07-2010
20100003568FUEL CELL AND FUEL CELL SYSTEM INCLUDING THE SAME - A fuel cell includes: cells (01-07-2010
20100003567Fuel cell - A fuel cell includes an electrolyte membrane, a cathode electrode layer disposed at a surface of the electrolyte membrane, and an anode electrode layer disposed at a surface of the electrolyte membrane opposite to a surface facing the cathode electrode layer. At least one of the cathode electrode layer and the anode electrode layer includes a first catalyst layer disposed at an interface with the electrolyte membrane, and a second catalyst layer disposed at a surface of the first catalyst layer opposite to a surface facing the electrolyte membrane. The first catalyst layer is configured to contain a catalyst not supported on a carrier and not to contain a catalyst supported on a carrier. The second catalyst layer is configured to contain a catalyst supported on a carrier.01-07-2010
20090023035METHOD OF MANUFACTURING SEAL-INTEGRATED TYPE MEMBRANE ELECTRODE ASSEMBLY - In a process of manufacturing a membrane electrode assembly, seal-material flow holes (01-22-2009
20090142639Seal system for solid oxide fuel cell and method of making - A solid oxide fuel cell assembly is disclosed comprising a felt seal and a spacer capable of limiting a compressive force applied to the seal system. Also disclosed is a solid oxide fuel cell assembly comprising a seal system comprising a felt seal, wherein at least a portion of the felt seal defines a cavity in contact with a ceramic electrolyte sheet and wherein the cavity comprises at least one of a solid metal wire, a powdered metal, a sintered metal, a powdered ceramic, a sintered ceramic, or a combination thereof. Also disclosed is a solid oxide fuel cell assembly comprising a labyrinth seal that defines a cavity in which at least a portion of a ceramic electrolyte sheet is disposed. Also disclosed is a mounted ceramic electrolyte sheet comprising a ceramic electrolyte sheet and a metal frame positioned adjacent thereto, and a labyrinth seal.06-04-2009
20090142641FUEL CELL MODULE AND FUEL CELL - For the purpose of providing a fuel cell module having a small number of molding processes and favorable productivity, the edge of a polymer electrolyte membrane (06-04-2009
20090220836PROCESS FOR THE MANUFACTURE OF AN ION-CONDUCTING POLYMER MEMBRANE FOR A FUEL CELL - The invention relates to a process for the manufacture of an ion-conducting polymer membrane for a fuel cell and to a fuel cell core comprising such a membrane. It also relates to a fuel cell comprising such a membrane and/or such a cell core. The process of the invention comprises manufacturing an ion-conducting polymer membrane of a fuel cell by plasma chemical vapor deposition of at least two identical or different polymerizable monomers, each comprising: at least one polymerizable group, and at least one precursor group of the ion-conducting functional group chosen from the group formed by a phosphonyl ester, an acyl ester, a sulfonyl ester, a carbonyl halide or a thionyl halide.09-03-2009
20090246589FUEL CELL CATALYST, PROCESS FOR PREPARATION OF THE SAME, AND MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELL EMPLOYING THE CATALYST - The present invention provides a catalyst having high activity and excellent stability, a process for preparation of the catalyst, a membrane electrode assembly, and a fuel cell. The catalyst of the present invention comprises an electronically conductive support and catalyst fine particles. The catalyst fine particles are supported on the support and are represented by the formula (1): Pt10-01-2009
20090220835Platinum and Platinum Based Alloy Nanotubes as Electrocatalysts for Fuel Cells - Electrocatalyst durability has been recently recognized as one of the most important issues that have to be addressed before the commercialization of the proton exchange membrane fuel cells (PEMFCs). The present invention is directed to a new class of cathode catalysts based on supportless platinum nanotubes (PtNTs) and platinum alloy nanotubes, for example, platinum-palladium nanotubes (PtPdNTs), that have remarkable durability and high catalytic activity. Due to their unique combination of dimensions at multiple length scales, the platinum nanotubes of the present invention can provide high platinum surface area due to their nanometer-sized wall thickness, and have the potential to eliminate or alleviate most of the degradation pathways of the commercial carbon supported platinum catalyst (Pt/C) and unsupported platinum-black (PtB) as a result of their micrometer-sized length. The platinum nanotube catalysts of the present invention asymptotically approach a maximum of about twenty percent platinum surface area loss in durability test, while the commercial PtB and Pt/C catalysts lose about fifty-one percent and ninety percent of their initial surface area, respectively. Moreover, the PtNT and PtPdNT catalysts of the present invention show higher mass activity and much higher specific activity than commercial Pt/C and PtB catalysts.09-03-2009
20090220834MEMBRANE-ELECTRODE ASSEMBLY HAVING A MULTICOMPONENT SEALING RIM - The invention relates to a membrane-electrode assembly having a multicomponent sealing rim, with the rim components being joined by means of two different joining methods. The rim construction of the membrane-electrode assembly comprises at least two materials (sealing material A and frame B) which are joined to one another both by adhesion and by physical locking. The frame B has at least one perforation through which the sealing material penetrates and establishes an intermeshing connection. Adhesive bonding methods, lamination processes and/or injection moulding processes are suitable for producing the multicomponent rim and the corresponding membrane-electrode assembly. The multicomponent rim construction has a high bond strength. The membrane-electrode assembly having a multicomponent rim is used in electrochemical devices such as fuel cells (PEMFCs, DMFCs, etc.), electrolysers or electrochemical sensors.09-03-2009
20090258272Membrane-Electrode Assembly for Direct Liquid Fuel Cell and Method of Manufacturing the Same - A membrane-electrode assembly for a direct liquid fuel cell having improved performance and stability and a method of manufacturing the same are provided. The membrane-electrode assembly includes an anode including a first main catalyst layer, a second main catalyst layer, and a co-catalyst layer disposed between the main catalyst layers, a cathode, and a polymer electrolyte membrane formed between the second main catalyst layer of the anode and the cathode. In addition, the method includes forming an anode including a first main catalyst layer, a second main catalyst layer, and a co-catalyst layer disposed between the main catalyst layers, forming a cathode, and forming a polymer electrolyte membrane between the second main catalyst layer of the anode and the cathode.10-15-2009
20090117434Membrane 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 the two 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, which are selected from the group consisting of the carbon nanotubes isotropically arranged, arranged along a fixed direction, or arranged along different directions. And a method for making the membrane electrode assembly is also included.05-07-2009
20090117432Water Removal Features for PEMFC Stack Manifolds - A bipolar plate includes angled facets oriented to form V-shaped projections on the plate edge. Liquid leaving the reactant channels is drawn back into the V-shaped grooves of the projections, leaving no liquid to obstruct the channel exit openings. The bipolar plate includes one portion of the bipolar plate offset from another portion of the bipolar plate so as to expose the reactant channels. The liquid is drawn toward the end portions of the reactant channels by capillary forces, while the gas flows can exit near the beginning of the offset portion. A fuel cell stack includes angled facets that are rotated to lie in the plane of the bipolar plate edges. The edges are chamfered so the channel exit openings of the reactant channels are at the tip portions thereof, thus allowing the liquid to flow away from the channel exit openings and the gas to exit freely.05-07-2009
20090246587FUEL CELL - A fuel cell includes an anode, a cathode, and an electrolyte membrane arranged between the anode and the cathode. A fuel deficiency countermeasure is implemented for the anode and a fuel deficiency countermeasure is implemented for the cathode. As a result, the fuel cell suppresses a decline in performance caused by a fuel deficiency.10-01-2009
20090246585CELL STRUCTURE OF FUEL CELL AND FUEL CELL STACK - There is provided a cell structure of a fuel cell which does not require a bolt, a seal member, or the like for fastening components of the fuel cell by a staked body, which can apply a stable fastening pressure to the entire surfaces of the components to reduce a contact resistance, and which can realize the down-sizing of the fuel cell; and a fuel cell stack. A cell structure of a fuel cell includes: a fuel cell component including at least an electrolyte membrane having reaction layers formed on both surfaces thereof and a member for allowing gas to diffuse and collecting current at a time of power generation; and an electrode substrate for taking out electric power, on which the fuel cell component is stacked, wherein the electrode substrate includes, as a structural portion for applying a surface pressure to the fuel cell component, a flow path or a closed space which is formed in the electrode substrate, for applying the surface pressure by allowing a fuel gas to flow in the flow path or the closed space.10-01-2009
20090239119ELECTROLYTE ELECTRODE ASSEMBLY AND METHOD FOR PRODUCING THE SAME - Plural columnar recesses are formed in a depressed form, on one end surface of a solid electrolyte disposed on a side facing an anodes. Accordingly, the solid electrolyte is formed with a thick-walled portion and thin-walled portion, wherein the thick-walled portion extends, from an abutment surface with respect to the anode to an abutment surface with respect to a cathodes. The thin-walled portions extend from the abutment surface with respect to the cathode to the columnar recesses, and further have a thickness smaller than that of the thick-walled portion. Therefore, the anode also is formed on bottom and side wall surfaces of the columnar recesses. In the obtained electrolyte electrode assembly, a calculated value of conductance per unit area is set at 2 to 30 S/cm09-24-2009
20090239116ASSEMBLY FOR FUEL CELL, FUEL CELL, AND METHOD FOR MANUFACTURING FUEL CELL - Disclosed is a fuel cell wherein deterioration of fuel cell performance due to dry up phenomenon and flooding phenomenon is suppressed. Specifically disclosed is an assembly for fuel cells or a fuel cell wherein a catalyst layer contains a first composite catalyst particle containing a catalyst supporting particle and a solid polymer electrolyte and a second composite catalyst particle having a larger volume average particle diameter than the first composite catalyst particle and arrangement of the first composite catalyst particle and the second composite catalyst particle is controlled in the thickness direction of the catalyst layer. Consequently, deterioration of fuel cell performance due to dry up phenomenon or flooding phenomenon can be suppressed, thereby realizing a fuel cell with high efficiency.09-24-2009
20090239120GAS DIFFUSION LAYER IN A FUEL CELL - A fuel cell includes a gas channel-forming member that forms a channel for supplying a reactant gas to a plane of an electrode. A basic structure of the gas channel-forming member is a corrugated plate portion in which ridge portions and trough portions continuously alternate with each other. In the gas channel-forming member, a plurality of corrugated plate portions are interconnected. Specifically, two adjacent corrugated plate portions are interconnected so that the trough portions of one of the two connect to the ridge portions of the other corrugated plate portion. The gas channel-forming member is disposed so that the direction of alignment of the connection planes S formed by the interconnection between the trough portions and the ridge portions is parallel to the plane of the electrode. This structure improves the diffusion efficiency of the reactant gas in the gas channel.09-24-2009
20100015487CATALYST-COATED MEMBRANE, MEMBRANE-ELECTRODE ASSEMBLY, FUEL CELL AND FUEL CELL STACK - The present invention provides a catalyst-coated membrane and a membrane-electrode assembly that can easily and surely achieve a polymer electrolyte fuel cell having excellent durability, in which the decomposition/degradation of a polymer electrolyte membrane can be suppressed, and a decrease in initial characteristics can be prevented sufficiently for a long period of time even when the polymer electrolyte fuel cell is frequently started and stopped. In the catalyst-coated membrane that includes an anode catalyst layer, a cathode catalyst layer, and a hydrogen ion conductive polymer electrolyte membrane interposed between the anode catalyst layer and the cathode catalyst layer, a peripheral area of at least one of the anode catalyst layer and the cathode catalyst layer is provided with a decrease portion in which the mass of the electrode catalyst per unit area of the catalyst layer decreases from the inner side toward the outer side.01-21-2010
20090253014FUEL CELL MODULE AND MANUFACTURING METHOD THEREOF - A fuel cell module includes: an electrode member having a membrane electrode assembly, which is formed from an electrolyte membrane and a pair of electrode catalyst layers that is disposed on both sides of the electrolyte membrane in the thickness direction, and having a pair of porous layers disposed on both sides of the membrane electrode assembly in the thickness direction; a separator disposed layered on the electrode member so as to contact at least one of the porous layers; and an adhesive rubber member sealing a peripheral edge portion of the electrode member, wherein the electrode member and the separator are integrated by the adhesive rubber member, and a tensile product of the adhesive rubber member is 1,500 MPa·% or more.10-08-2009
20090253013ELECTRODE FOR FUEL CELL, MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELL - A fuel cell electrode includes a catalyst layer including an ion conductive substance, an electron conductive substance, and a catalytic activity substance. The catalytic activity substance includes Pt and at least one metal other than Pt. The catalyst layer includes at least two regions differing in the content ratio of Pt. A membrane electrode assembly and a fuel cell include the fuel cell electrode.10-08-2009
20090253012FUEL CELL - A fuel cell including an anode conductive layer, an anode catalyst layer, an electrolyte membrane, a cathode catalyst layer, a cathode conductive layer, and a cathode diffusion layer stacked in this order, in which the cathode diffusion layer has a fabric structure in which a water-swellable fiber and a non-water-swellable fiber are arranged. Preferably, in the fabric structure, the water-swellable fiber is arranged in either one of a warp and a weft. Preferably, gas permeability of the cathode diffusion layer increases as the water absorption amount of the water-swellable fiber increases.10-08-2009
20090253011Fuel Cell - A fuel cell that includes an anode-side diffusion layer, an anode-side catalyst layer, an electrolyte membrane, a cathode-side catalyst and a cathode-side diffusion layer layered in that order. The anode-side catalyst layer includes Pt—Ru catalyst. A catalyst layer portion of the anode-side catalyst layer apart from the electrolyte membrane and/or the anode-side diffusion layer contains a metal element which is lower in standard potential than Ru and higher in standard potential than hydrogen. The metal element which is lower in standard potential than Ru and higher in standard potential than hydrogen is at least one element which may be selected from, for example, Cu, Re and Ge. By this structure, both prevention of poisoning of Pt—Ru catalyst by CO and prevention of contamination of an electrolyte membrane can be satisfied.10-08-2009
20090246584FUEL CELL CATALYST REGENERATION - Systems and methods that facilitate operating proton exchange membrane (PEM) fuel cells are provided. The methods can involve contacting a reducing agent comprising a mixture of hydrogen and nitrogen, or a reducing plasma with a cathode catalyst of a proton exchange membrane fuel cell to reduce the cathode catalyst. The systems employ a fuel supply component that supplies fuel to the proton exchange membrane fuel cell; and a regeneration component that provides a reducing agent comprising a mixture of hydrogen and nitrogen, or a reducing plasma to a cathode catalyst of the proton exchange membrane fuel cell to reduce the cathode catalyst.10-01-2009
20090246588Planar fuel cell device - A planar fuel cell device including a fuel cell module, a first cathode channel plate, a second cathode channel plate, and a fixing structure is provided. The first cathode channel plate is adapted to be disposed on a first surface of the fuel cell module and includes a first curved surface and a first channel structure disposed on the first curved surface. The first curved surface protrudes toward the fuel cell module for pressing the first surface of the fuel cell module. The second cathode channel plate is adapted to be disposed on a second surface of the fuel cell module opposite to the first surface. The fixing structure is adapted to be disposed on the edge of the fuel cell module for fixing the first cathode channel plate and the second cathode channel plate on the first surface and the second surface respectively.10-01-2009
20100047652DIRECT METHANOL FUEL CELL AND CATHODE FOR DIRECT METHANOL FUEL CELL - A cathode for a direct methanol fuel cell is provided. The cathode comprises a cathode catalyst layer includes a first carbon powder supporting a noble metal catalyst, a proton conductive polyelectrolyte at least partially covering a surface of the first carbon powder, and a second carbon powder having a water repellent material on a surface thereof. The cathode catalyst layer is accompanied with a porous structure satisfying following conditions.02-25-2010
20080318107Composite electrolyte membrane, production method thereof, membrane-electrode assembly, and fuel cell - A composite electrolyte membrane uses a metal-oxide hydrate which has a number of hydration water molecules of 2.7 or more and 10 or less and/or which is in the form of particles having a particle diameter of 1 nm or more and 10 nm or less. The composite electrolyte membrane exhibits its expected original performance, has both a high proton conductivity and a low methanol permeability, and provides a high-output membrane electrolyte assembly for a fuel cell.12-25-2008
20100015488FUEL CELL - Hydrogen supplied from an introduction port 01-21-2010
20090239115HETEROATOM-CONTAINING MESOPOROUS CARBON, METHOD OF PREPARING THE SAME, AND FUEL CELL USING THE HETEROATOM-CONTAINING MESOPOROUS CARBON - A heteroatom-containing mesoporous carbon has a pore diameter of 11 to 35 nm, has a specific surface area of 500 m09-24-2009
20100151295ANODE MATERIALS FOR PEM FUEL CELLS - The incorporation of tungsten-containing hydrogen spillover materials into a composite fuel cell anode can be helpful in preserving the carbon catalyst support materials in the fuel cell cathode during periods of hydrogen starvation. Preferred examples of such tungsten-containing hydrogen spillover materials are tungsten oxides and tungsten silicides. These materials, when physically mixed with catalyst-loaded carbon support particles in a composite anode, have shown the ability to promote hydrogen storage in amounts that, during a disruption of hydrogen gas flow, can postpone an anodic potential excursion into the oxygen evolution region for a period of at least several seconds.06-17-2010
20080261097MEMBRANE-ELECTRODE ASSEMBLY AND DIRECT METHANOL FUEL CELL - Disclosed is a membrane-electrode assembly including an anode, a cathode, and a proton-conductive polymer electrolyte membrane and further including a diffusion enhancing layer disposed between the cathode and the proton-conductive polymer electrolyte membrane. The membrane-electrode assembly and a direct methanol fuel cell using the same work to effectively eliminate product water and electrolyte membrane-permeated water remaining in the vicinity of the interface between the cathode and the electrolyte membrane to feed a reaction gas sufficiently to the vicinity of the interface between the cathode and the electrolyte membrane, and exhibit high performance stably over a long period of time.10-23-2008
20090075143Gasket - In order to inhibit a gasket (03-19-2009
20090075141HYBRID MEMBRANES, METHOD FOR PRODUCTION OF HYBRID MEMBRANES AND FUEL CELLS USING SUCH HYBRID MEMBRANES - The invention relates to hybrid membranes that are composed of an organic polymer and an inorganic polymer, a method for producing hybrid membranes, and the use of said hybrid membranes in polymer electrolyte membrane fuel cells. The inventive hybrid membranes comprise at least one alkaline organic polymer and at least one inorganic polymer. Said polymers are blended together at a molecular level. The inorganic polymer is formed from at least one precursor monomer when the membrane is produced. The disclosed membranes are characterized in that the same are provided with high absorptivity for doping agents, have a high degree of mechanical and thermal stability in both an undoped and doped state, and feature permanently high proton conductivity.03-19-2009
20090075140ELECTRODE STRUCTURE OF FUEL CELL - An MEA includes an electrolyte membrane permeable to hydroxide ions. A catalyst layer formed of a hydrogen storage alloy is provided on one surface of the membrane facing the anode electrode layer. Another catalyst layer formed of platinum-on carbon is provided on the opposite surface of the membrane facing the cathode electrode layer. The catalyst layer on the anode-electrode-layer side dissociates hydrogen gas into atomic hydrogen, diffuses the atomic hydrogen by way of solid phase diffusion, and absorbs/desorbs atomic hydrogen. The catalyst layer on the cathode-electrode-layer side forms hydroxide ions from air, humidifying water, and electrons. The membrane allows movement of the hydroxide ions to the catalyst layer on the anode-electrode-layer side. This leads to formation of water on the anode-electrode-layer side, whereby occurrence of dry-up can be prevented. Even when flooding arises from formed water, atomic hydrogen can smoothly move through solid-phase diffusion. An open circuit voltage of the catalyst layer on the cathode-electrode-layer side can be made smaller than an elution potential of platinum. Since the catalyst layer on the anode-electrode-layer side absorbs excess hydrogen gas, wasteful discharge of hydrogen gas can be avoided.03-19-2009
20100086820BIPOLAR PLATE WITH FEATURES FOR MITIGATION OF EXIT WATER RETENTION - A fuel cell plate having a first plate having an inlet aperture and a second plate disposed against the first forming a conduit. The fuel cell plate, well suited for use in a vehicle fuel cell stack, for reducing water retention in a fuel cell without increasing the number of required components and fabrication cost of the fuel cell plate is disclosed.04-08-2010
20090286121SOLID POLYMER ELECTROLYTIC FUEL CELL - Elastic members that are integrally joined to a frame member are placed between an outer edge of an electrode unit and an inner edge of the frame member, and in the assembled state of the single cell module, the elastic members are elastically deformed in the thickness direction of a membrane-electrode-frame assembly so that the gap between the membrane-electrode-frame assembly and the separator is sealed in a tightly contact state.11-19-2009
20090233135Fuel Cell Catalyst, Fuel Cell Electrode, and Polymer Electrolyte Fuel Cell Provided With Such Fuel Cell Electrode - A fuel cell catalyst in which catalyst particles are supported on a carrier is provided, wherein the value of the average catalyst carrier pore diameter/the catalyst metal (PGM) particle diameter is 0.5 to 1.8. Such fuel cell catalyst is less likely to cause voltage drops even after being used for a long period of time.09-17-2009
20090246590FUEL CELL SYSTEM - A fuel cell system includes a membrane electrode assembly including an anode electrode, a cathode electrode opposed to the anode electrode, and an electrolyte membrane interposed between the anode electrode and the cathode electrode; a porous body in contact with the anode electrode; an anode passage plate in contact with the porous body, including a gas passage collecting a gas generated in the anode electrode and a fuel passage supplying a fuel to the anode electrode; a first seal portion sealing outer circumferences of the cathode electrode; and a second seal portion sealing outer circumferences of the anode electrode and made of a material having lower CO10-01-2009
20090286124Membrane electrode assembly for fuel cell, method for making the same, and fuel cell system including the same - A membrane-electrode assembly for a fuel cell including a first substrate and a second substrate and a catalyst layer between the first substrate and the second substrate is provided, where the first substrate is a polymer electrolyte membrane and the second substrate is a electrode substrate, or the first substrate is the electrode substrate and the second substrate is the polymer electrolyte membrane. The catalyst layer has a h11-19-2009
20090208805MEMBRANE/ELECTRODE ASSEMBLY FOR POLYMER ELECTROLYTE FUEL CELL AND PROCESS FOR ITS PRODUCTION - To provide a membrane/electrode assembly excellent in durability and capable of providing a high output voltage, and a process for its production.08-20-2009
20090202880ELECTROCHEMICAL MEDIATORS - A redox mediator is a hyperbranched polymer having redox moieties (e.g. ferrocene) incorporated into its structure and/or chemically bonded to its periphery. It is attached to an electrode and assists in transferring electrons between the electrode and a redox enzyme.08-13-2009
20090068527SOLID POLYMER FUEL CELL AND METHOD FOR PRODUCING MEA USED FOR SOLID POLYMER FUEL CELL - This invention intends to improve the catalyst efficiency by sufficiently providing a triple phase boundary where reaction gas, catalysts, and electrolytes meet in carbon nanohorns. With the utilization of the resulting MEA, the electrode reactions are allowed to effectively proceed, and the power generation efficiency of a fuel cell is improved to result in a solid polymer fuel cell with excellent properties. Such solid polymer fuel cell comprises electrodes having a catalyst layer comprising: a carrier comprising a carbon nanohorn aggregate; catalytic metals supported on the carrier comprising a carbon nanohorn aggregate; and polymer electrolytes coating the carrier comprising a carbon nanohorn aggregate, wherein the proportion of the polymer electrolyte to the carbon nanohorn aggregate is 0.32:1 to 0.70:1 by weight.03-12-2009
20090162719Liquid Fuel and Fuel Cell - A liquid fuel containing an ionic microgel is provided. A fuel cell having an anode for oxidizing the liquid fuel, a cathode for reducing an oxidizing agent, and an electrolyte film sandwiched between the anode and the cathode is provided.06-25-2009
20080268316Fuel cell stack and manufacturing method thereof - A fuel cell stack and a manufacturing method thereof are disclosed. In one embodiment, the fuel cell stack includes: i) a membrane electrode assembly configured of an anode electrode, a cathode electrode, and a polymer electrolyte membrane positioned therebetween, ii) a first plate including a fuel flow channel facing the anode electrode and contacting the anode electrode and iii) a second plate including an oxidant flow channel facing the cathode electrode and contacting the cathode electrode, wherein the membrane electrode assembly, the first bipolar plate, and the second bipolar plate each includes a stack direction display parts, which are arranged in a line. At least one embodiment of the invention is capable of preventing an anode surface and a cathode surface of a part from being reversely stacked in manufacturing a stack type fuel cell.10-30-2008
20090110992SOFC electrode sintering by microwave heating - A method for debinding and sintering a solid oxide fuel cell (SOFC) electrode includes depositing a first paste comprising a binder material and a first electrode precursor material onto a first side of a ceramic SOFC electrolyte; and irradiating the first paste with microwave radiation to sinter and debind the first electrode.04-30-2009
20090110991BIPOLAR PLATE AND FUEL CELL STACK INCLUDING THE SAME - Bipolar plates and a fuel cell stack having the bipolar plates. The fuel cell stack includes membrane electrode assemblies (MEAs), and first and second bipolar plates sequentially stacked between the MEAs. The bipolar plates include: flow channels formed on opposing surfaces thereof; four manifolds connected to the flow channels; and through holes to connect to the manifolds of the bipolar plates adjacent thereto.04-30-2009
20090068526FUEL CELL SEPARATOR - A mold for a use of making a fuel cell separator comprises: a first flow path forming portion to form a cooling medium flowing path, or to form an oxidizing gas flowing path, or to form a fuel gas flowing path; and an injection gate to shoot out a forming material settled on the first flow path, and/or disposed at near place with the first flow path.03-12-2009
20090068523FUEL 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 03-12-2009
20090068522MONOPOLAR TYPE MEMBRANE ELECTRODE ASSEMBLY HAVING SENSING ELEMENT - A monopolar membrane electrode assembly (MEA) for a fuel cell, for example, includes: an electrolyte membrane; anode and cathode electrodes formed on opposite surfaces of the electrolyte membrane, respectively; current collecting bodies that form electrical paths of electricity generated from an electricity generation reaction between the anode and cathode electrodes and the electrolyte membrane; and sensing elements to measure changes in operation state conditions during electricity generation and electrical connection. Since temperature and fuel concentration in the monopolar MEA having the above structure are detected on a real time basis, appropriate action can be taken whenever an abnormal operation thereof is detected.03-12-2009
20090239121Fuel Cell Stack and Fuel Cell Apparatus - A fuel cell stack including an array of a plurality of fuel cells in which power generation efficiency can be increased by uniformizing temperature distribution in a direction of arrangement of fuel cells, is provided. In a fuel cell stack including an array of a plurality of fuel cells electrically connected in series to each other, the fuel cells each being formed by laminating a fuel-side electrode layer, a solid-state electrolytic layer, and an air-side electrode layer one after another on a support substrate, an interval between a plurality of the fuel cells arranged in a midportion thereof in a direction of arrangement of the fuel cells is wider than an interval between a plurality of the fuel cells arranged at either end thereof in the direction of arrangement of the fuel cells. The temperature distribution of the fuel cell stack can be made as nearly uniform as possible.09-24-2009
20090035636Solid oxide fuel cell - The present invention relates to a solid oxide fuel cell in which an anode is formed with a hollow portion, and the hollow portion may be used as a gas diffusion path, thereby improving gas diffusion performance, and the hollow portion may be also used as a reinforcement hole for reinforcing a strength or a current collecting hole for increasing a current collecting efficiency, thereby improving a cell strength and also increasing an efficiency of producing electric energy. The solid oxide fuel cell has an electrolyte layer; an anode; a cathode; and a hollow portion formed in the anode.02-05-2009
20090035633Chemically sintered composite electrodes and manufacturing processes - An iterative process of depositing on a solid electrolyte a coating of unconnected particles composed of an ionically conductive material. A liquid solution is also applied. The liquid solution includes an inorganic component. The deposited liquid is heated to a temperature sufficient to evaporate or otherwise remove some or all of the volatile components of the liquid solution. Typically the temperature is below 1000° and often at about 850° C. The effect of heating the solution is to cause ion conducting material in the solution to adhere to the surface of the existing ion conducting particles and form connections between these particles. This is understood to create an ion conducting skeletal support structure. Within the intrestices of this skeletal support structure, the step of heating is also understood to result in the deposition of the inorganic component that will begin to form a electron conducting structure. The process of applying the liquid solution and heating may be repeated until a sufficiently thick layer of material is laid over the solid electrolyte to provide the composite electrode structure desired.02-05-2009
20090035634Electrolyte Membrane-Electrode Assembly And Method For Production Thereof - The present invention is to provide an electrolyte membrane-electrode assembly which enables to effectively suppress corrosion of a cathode catalyst on start/stop, and decomposition of an electrolyte on OCV retention. The present invention is to provide an electrolyte membrane-electrode assembly which comprises a polymer electrolyte membrane, a cathode catalytic layer located at one side of the polymer electrolyte membrane, an anode catalytic layer located at the other side of the polymer electrolyte membrane, and a first gasket layer formed at the end part of the cathode catalytic layer so that area of the effective anode catalytic layer is made larger than area of the effective cathode catalytic layer.02-05-2009
20090035632SOLID OXIDE FUEL CELL ELECTRODE SYSTEMS AND METHODS - A solid oxide fuel cell (SOFC) interconnect comprises a metal sheet with an air side and a fuel side in accordance with an embodiment of the present invention. The metal sheet comprises a metallic composite having a matrix. The matrix comprises a first metal. The metal sheet also comprises a plurality of discontinuous, elongated, directional reinforcement wires. The reinforcement wires comprise a second metal that is immiscible in the first metal. An oxidation protection layer is disposed on the air side of the metal sheet.02-05-2009
20100151296ELECTRODE CATALYST FOR FUEL CELL AND FUEL CELL INCLUDING ELECTRODE HAVING ELECTRODE CATALYST - An electrode catalyst for a fuel cell and a fuel cell including an electrode having the electrode catalyst, include a non-platinum (Pt) catalyst, and a cerium (Ce) metal catalyst, both of which are supported on a carbon-based catalyst support having an improved catalytic activity at a decreased cost. The non-Pt catalyst may be at least one selected from the group consisting of Mn, Pd, Ir, Au, Cu, Co, Ni, Fe, Ru, WC, W, Mo, Se, any alloys thereof, and any mixtures thereof, and the Ce metal catalyst may be a Ce oxide.06-17-2010
20090081512Micromachined electrolyte sheet, fuel cell devices utilizing such, and micromachining method for making fuel cell devices - A sintered electrolyte sheet comprising: a body of no more than 45 μm thick and laser machined features with at least one edge surface having at least 10% ablation. A method of micromachining the electrolyte sheet includes the steps of: (i) supporting a sintered electrolyte sheet; (ii) micromachining said sheet with a laser, wherein said laser has a wavelength of less than 2 μm, fluence of less than 200 Joules/cm03-26-2009
20090311570SOFC Double Seal with Dimensional Control for Superior Thermal Cycle Stability - A seal for devices such as a solid oxide fuel cells. The seal is a double seal having a first sealing material having a first preselected characteristic and a second sealing material having a second sealing characteristic. In one embodiment of the invention the first sealing material is a compressive sealing material and the second sealing material is a hermetic sealing material. In some embodiments a dimensional stabilizer may also be included as a part of the seal. In use these double seals provide superior thermal cycling stability in electrochemical devices where gasses must be separated from each other.12-17-2009
20100015491SOLID OXIDE FUEL CELL STACK FOR PORTABLE POWER GENERATION - A solid oxide fuel cell module for use in a portable power supply system. The solid oxide fuel cell module includes a housing with a walled structure defining a substantially enclosed interior cavity, wherein the housing includes an outer wall surface and inner wall surface. The solid oxide fuel cell module also includes an aperture extending through the walled surface from the outer wall surface to the inner wall surface of the housing in fluid communication with the interior cavity. A tri-layer solid oxide fuel cell may be mounted to the housing and aligned to substantially cover the aperture.01-21-2010
20090029218Fabrication Method of Anode and Electrolyte in Solid Oxide Fuel Cell - The present invention relates to a fabrication method of a solid oxide fuel cell. The fabrication method of a fuel electrode and electrolyte of a solid oxide fuel cell (SOFC) in which a sheet cell including a fuel electrode sheet and an electrolyte sheet is positioned at an upper side of a surface of a fuel electrode pellet, includes the steps of (a) molding and heat-treating powder, in which a fuel electrode material is mixed with a pore forming agent, so as to prepare a fuel electrode pellet; (b) stacking the fuel electrode sheet containing the fuel electrode material and the electrolyte sheet containing an electrolyte material so as to prepare the sheet cell; and (c) coating an adhesive slurry containing the fuel electrode material on the sheet cell or the pellet and adhering the fuel electrode sheet of the sheet cell and the pellet and then heat-treating it.01-29-2009
20090029217SOLID POLYMER FUEL CELL - It is an object of the present invention to provide a means for integrating an MEA and a pair of separators and regulate their positions without using parts that are specifically dedicated for position regulation use. More specifically, the present invention provides a polymer electrolyte fuel cell including a frame-integrated MEA, a separator having a channel for supplying and releasing a fuel gas, and a separator having a channel for supplying and releasing an oxidizer gas, and, in this fuel cell, the frame body of the frame-integrated MEA has a plurality of projections having a hook-shaped tip on both planes of the frame body and each separators has a plurality of stepped parts, and the projections on the frame body and the stepped parts on the pair of separators are integrated by fitting together with each other.01-29-2009
20090029216ELECTRODE CATALYST AND METHOD FOR PRODUCING SAME - Provided is a method for suppressing corrosion of a carbon material, which acts as a carrier in a catalyst layer of PEFC. The present invention relates to an electrode catalyst produced by subjecting a carbon material having a noble metal catalyst supported thereon to heat treatment under inert gas atmosphere.01-29-2009
20090311571FUEL CELL STACK - A casing of a fuel cell stack has stack deformation prevention structure for limiting the change of an interval between end plates on the lower side in a direction of gravity, due to swelling of the lower side of the stack body in the direction of gravity. The stack deformation prevention structure is configured such that elastic modulus of a side plate provided on a lower side of the stack body in the direction of gravity is higher than elastic modulus of a side plate provided on an upper side of the stack body in the direction of gravity.12-17-2009
20090311569GASKETS FOR FUEL CELLS - A gasket for sealing internal surfaces of a fuel cell and formed of compressible material, the gasket comprising a first sealing surface and a second sealing surface for providing a fluid seal against opposing faces of a first fluid flow field plate and a second fluid flow field plate respectively, the gasket further comprising a third sealing surface for sealing against an outer perimeter region of a first surface of a membrane electrode assembly, the third sealing surface being entirely enclosed within a boundary defined by an inner perimeter of the second sealing surface.12-17-2009
20100009230Fuel cells based on hollow conductive carbon fibres - An improved fuel cell structure uses a first sheet of carbon fibres separated by an electrolyte from a second sheet of carbon fibres. A fuel cell catalyst is coated on the outside of the fibres and the fuel passed down one set of fibres and oxygen or air passed down the second sheet of fibres.01-14-2010
20100015489Titanates of Perovskite or Derived Structure and Applications Thereof - Materials of the titanate type of perovskite or derived structure and their uses for the production of electrodes, more particularly in the cell elements of an SOFC cell or the cell elements of a high-temperature steam electrolysis cell.01-21-2010
20100040925FUEL CELL - A fuel cell, which employs power generation units that have an electrolyte membrane and electrodes respectively disposed to either side of the electrolyte membrane, comprises a stack that includes a stacked plurality of the power generation units, a clamping member, and a shear elastic member. The clamping member is used for clamping the stack in the stacking direction. The shear elastic member is interposed between the clamping member and an end face of the stack in the stacking direction, and elastically deform in a shearing direction which lies orthogonal to the stacking direction.02-18-2010
20090035637Anode supported solid oxide fuel cell - The present invention relates to a solid oxide fuel cell in which an anode is formed with a current collecting hole and a reinforcement hole, and a current collecting member and a reinforcement member are respectively in the current collecting hole and reinforcement hole, thereby increasing a current collecting efficiency and thus an efficiency of producing electric energy and also improving a cell strength. The solid oxide fuel cell has an electrolyte layer; an anode and a cathode formed to be contacted with both surfaces of the electrolyte layer; a current collecting hole formed in the anode; and a current collecting member inserted into the current collecting hole.02-05-2009
20100062304MEMBRANE MEMBRANE-REINFORCEMENT-MEMBER ASSEMBLY, MEMBRANE CATALYST-LAYER ASSEMBLY, MEMBRANE ELECTRODE ASSEMBLY AND POLYMER ELECTROLYTE FUEL CELL - A membrane membrane-reinforcement-member assembly, membrane catalyst-layer assembly, membrane electrode assembly, and polymer electrolyte fuel cell are provided, which are so configured as to ensure sufficient durability and a cost reduction in unit cells and be suited for mass production. To this end, a membrane membrane-reinforcement-member assembly (03-11-2010
20100062303METAL-SUPPORTED SOLID OXIDE FUEL CELL AND MANUFACTURING METHOD THEREOF - Disclosed are a metal-supported solid oxide fuel cell and a method for manufacturing the metal-supported solid oxide fuel cell. The method includes: fixedly joining a metal support to one surface of a unit cell including a fuel electrode, an air electrode and an electrolyte layer interposed between the fuel and air electrodes to fabricate a metal-supported unit cell (S03-11-2010
20100062302METAL SUPPORT AND SOLID OXIDE FUEL CELL INCLUDING THE SAME - Disclosed are a metal support for a solid oxide fuel cell and the solid oxide fuel cell including the metal support. The metal support is coupled to a separator of the solid oxide fuel cell by welding and supports one surface of a unit cell comprising a fuel electrode, an air electrode, and an electrolyte layer interposed between the fuel and air electrodes, wherein the metal support is in the form of a plate and has a welding portion welded to the separator on the outer circumference thereof and a hollow portion surrounded by the welding portion to allow a fuel gas or air to flow therethrough. The use of the metal support increases the mechanical strength of the solid oxide fuel cell, resulting in improved durability and extended service life of the solid oxide fuel cell. In addition, the metal support ensures a smooth flow of the fuel gas or air, resulting in an increase in the sealing efficiency and energy production efficiency of the solid oxide fuel cell.03-11-2010
20100062307DIRECT OXIDATION FUEL CELL - A direct oxidation fuel cell includes at least one unit cell. The unit cell includes: a membrane electrode assembly including an anode, a cathode, and an electrolyte membrane sandwiched therebetween; an anode-side separator having a fuel flow channel for supplying a fuel to the anode; and a cathode-side separator having an oxidant flow channel for supplying an oxidant to the cathode. The cathode includes a cathode catalyst layer in contact with the electrolyte membrane, and a cathode diffusion layer in contact with the cathode-side separator. The cathode catalyst layer includes a cathode catalyst and a polymer electrolyte, and the amount of the polymer electrolyte contained in a portion of the cathode catalyst layer facing an upstream portion of the fuel flow channel is smaller than that contained in a portion of the cathode catalyst layer facing a downstream portion of the fuel flow channel.03-11-2010
20100062308Membrane Electrode Assembly, Manufacturing Method Thereof and Fuel Cell - This invention provides a manufacturing method of an MEA in which electrode catalyst layers adhere sufficiently to a polymer electrolyte membrane and the fringe area of the polymer electrolyte membrane has no large waviness to cause a gas seal problem when used in a fuel cell. The method includes preparing a pair of transfer sheets each having an electrode catalyst layer on one surface of a substrate, arranging the transfer sheets in such a way that the electrode catalyst layers, respectively, face both surfaces of the polymer electrolyte membrane and the fringe area of the polymer electrolyte layer is exposed, and hot pressing the transfer sheets together with the interposed polymer electrolyte membrane, and has a feature that pressure applied during the hot pressing in a certain area is 0.5-2.0 MPa (referred to as P03-11-2010
20100062310Fuel Cells - A cartridge includes a first housing, a second housing within the first housing, and a colorant. The first housing has an interior surface and an exterior surface, and the second housing contains an alcohol fuel or a hydrocarbon fuel and has an interior surface and an exterior surface. The colorant is supported by at least a portion of the interior surface of the first housing.03-11-2010
20100062309FUEL CELL AND METHOD FOR MANUFACTURING THE SAME - A fuel cell is provided with a membrane-electrode assembly 03-11-2010
20100062305ELECTRODE CATALYST LAYER FOR FUEL CELL AND METHOD OF PRODUCING THE SAME - An electrode catalyst layer for a fuel cell includes a first region and a second region more highly water repellent than the first region. The amount of catalyst per unit area in the first region is smaller than the amount of catalyst per unit area in the second region. The electrode catalyst layer makes it possible to reduce the amount of catalyst contained in the electrode catalyst layers, while avoiding a drop in output voltage of the fuel cell.03-11-2010
20100055527SOLID POLYMER FUEL CELL - A solid polymer fuel cell that utilizes liquid fuel such as methanol should prevent generated water from residing in a ventilation port close to an anode, to thereby suppress degradation of a MEA. The fuel cell includes an anode, an anode-side collecting electrode, a sealing material located along a perimeter of a solid polymer electrolytic membrane and interleaved between the electrolytic membrane and the anode-side collecting electrode, and a discharging device that discharges a product generated through electric reaction on the anode. The sealing material is provided in a frame-shape around the anode. The discharging device is a ventilation port formed on the sealing material, and a water repellent material is provided at least one of inside the ventilation port and between the ventilation port and the anode.03-04-2010
20100055525SOLID ELECTROLYTE FUEL CELL STACK - A solid electrolyte fuel cell comprises a solid electrolyte body having a fuel electrode contacting a fuel gas and an air electrode contacting air. A plurality of the solid electrolyte fuel cells are stacked to form a solid electrolyte fuel cell stack, in which the stacked body of the solid electrolyte fuel cells is pressed in the stacked direction and fixed by a fixing member inserted into a through-hole passing through the stacked body in the stacked direction. Inside the through-hole, there is equipped an inner gas channel for supplying the gas to the solid electrolyte fuel cell side or evacuating the gas from the solid electrolyte fuel cell side.03-04-2010
20100055531SOLID OXIDE FUEL CELL, AND ASSEMBLING METHOD OF THE SAME - A reduction process is performed to each fuel electrode layer by supplying a reduction gas into each fuel channel 03-04-2010
20100055529WETTABILITY INK, PROCESS AND CARBON COMPOSITE ARTICLES MADE THEREWITH - The wettability of a porous carbon composite article used in a fuel cell is enhanced by a process of impregnating the composite article with a suspension of a wettability enhancing material that contains a thermally activated gelling material such as a methylcellulose gel which is activated at a temperature substantially below the boiling point of water.03-04-2010
20100055526Fuel cell and method for manufacturing fuel cell - The present invention relates to a fuel cell that uses alcohol as a fuel and including an electrolyte, and an anode (03-04-2010
20100055532GAS DIFFUSION LAYER, FUEL CELL AND METHOD FOR FABRICATING FUEL CELL - According to an aspect of the invention, there is provided, a gas diffusion layer, including, base materials integrated being including in the gas diffusion layer configured in an air electrode, wettability of a surface of each base material changing in an integrated direction.03-04-2010
20090214917FUEL CELL, FUEL CELL STACK, AND METHOD FOR MANUFACTURING FUEL CELL - A fuel cell includes a membrane electrode assembly (MEA) having an electrolyte membrane and a pair of electrodes arranged on both sides of the electrolyte membrane in the thickness direction, a pair of frames having a frame shape and holding an outer periphery portion of the electrolyte membrane, a pair of gas diffusion layers arranged inside the pair of frames and on both sides of the MEA in the thickness direction, and a gasket covering at least a part of the pair of frames. The fuel cell further includes a first cross-linking adhesive member formed of rubber which includes a membrane accommodating portion having an indented shape for accommodating the outer periphery portion of the electrolyte membrane and a first intermediate portion interposed between the pair of frames and which is subjected to cross-linking adhesion with the outer periphery portion of the electrolyte membrane and the pair of frames.08-27-2009
20090214918ANODE OF DIRECT METHANOL FUEL CELL AND DIRECT METHANOL FUEL CELL EMPLOYING THE SAME - The present invention provides an anode used in a direct methanol fuel cell and a direct methanol fuel cell employing that anode. They can prevent crossovers of methanol and water and also can control permeation of water, so as to achieve high power output. The anode comprises an anode catalyst layer 08-27-2009
20090023032ELECTRODE FOR FUEL CELL, ELECTROLYTE-DISPERSED SOLUTION FOR FORMING ELECTRODE, METHOD OF PRODUCING THE SOLUTION, AND POLYMER ELECTROLYTE FUEL CELL - An electrolyte-dispersed solution for forming an electrode is prepared by dispersing carbon particles loaded with a PtCo catalyst and an electrolyte containing a Pt catalyst are dispersed in a solvent. In the process of dispersion, the Pt-catalyst containing Nafion becomes close to the PtCo-catalyst-loaded carbon particles. In the electrode formed through coating and drying of the electrolyte-dispersed solution, the solvent disappears, and thus the Pt-catalyst containing Nafion is deposited on a predominant region of a surface of each carbon particle on which the PtCo catalyst is not supported. Thus, each of the carbon particles contained in the electrode, on which the PtCo catalyst has been loaded, is also loaded, via Nafion, with the Pt catalyst contained in Nafion, at regions of the carbon particle where the PtCo catalyst is not supported.01-22-2009
20090023029Fuel Cell - In a fuel cell composed of a pair of separators with a membrane electrode assembly sandwiched therebetween, gas passages having a plurality of generally linear passage portions, and bent passage portions each of which makes one end portion of the linear passage portions communicated with the other end portion of the linear passage portions, are formed so as to be communicative from a gas introducing port to a discharge port. In inner wall surfaces of the groove portions of the separators constituting the linear passage portions, water-retaining groove portions capable of retaining inside thereof at least part of water generated in the gas passage are formed in such a grooved configuration as to be substantially continuous along the passage portion. As a water drop generated within the gas passage makes contact with retained water within the water-retaining groove portions, growth of the water drop is suppressed to avoid any blockage of the gas passage, by which the anti-flooding property is improved.01-22-2009
20090023028Fuel Cell - A fuel cell (01-22-2009
20090023034FUEL CELL - A fuel cell (FC) of the present invention includes: four fastening rods (01-22-2009
20090023031Fuel Cell - This invention provides a fuel battery comprising a solid polymer electrolyte membrane, an anode-side catalyst body and a cathode-side catalyst body disposed respectively on both sides of the solid polymer electrolyte membrane, and a fuel guide part in which the anode-side catalyst body is disposed opposite to the anode-side catalyst body on the opposite side where the anode-side catalyst body faces the solid polymer electrolyte membrane and which guides a fuel which has been externally supplied toward the center of the face of the anode-side catalyst body.01-22-2009
20100098991Gas Diffusion Electrode For Polymer Electrolyte Fuel Cell, Membrane-Electrode Assembly For Polymer Electrolyte Fuel Cell, Production Method Therefor, And Polymer Electrolyte Fuel Cell - One object of the present invention is to provide a gas diffusion electrode for a polymer electrolyte fuel cell, which has excellent water repellency for quickly supplying and removing a reaction gas, and conductivity for efficiently conducting generated electrical power, a membrane-electrode assembly for a polymer electrolyte fuel cell and a method for producing the same, and a polymer electrolyte fuel cell, and the present invention provides a gas diffusion electrode comprising a nonwoven fabric, a porous fluororesin, and a carbon material.04-22-2010
20100055530POLYMER ELECTROLYTE FUEL CELL - Each of collectors 03-04-2010
20100003565FUEL CELL AND GASKET - The polymer electrolyte fuel cell of the invention includes: an electrolyte membrane that is made of a solid polymer; catalyst electrode layers that are arranged and formed on two opposed faces of the electrolyte membrane; gas separators that form reactive gas supply flow paths to allow passage of reactive gases subjected to an electrochemical reaction to the catalyst electrode layers; a holder element that is located on periphery of the electrolyte membrane and the catalyst electrode layers to support at least the electrolyte membrane; an expansion element that is linked with the holder element to be expandable in an electrolyte membrane surface direction; and a fixation element that is linked with the expansion element to be fixed to the gas separators. This arrangement effectively prevents deterioration of the electrolyte membrane, due to expansion or contraction of the electrolyte membrane in the polymer electrolyte fuel cell.01-07-2010
20100003566PROTON-CONDUCTIVE INORGANIC MATERIAL FOR FUEL CELL AND FUEL CELL ANODE EMPLOYING THE SAME - The present invention aims to provide a fuel cell anode, a membrane electrode assembly and a fuel cell, so as to obtain high electric power. The fuel cell anode has an electrode catalyst layer, and the electrode catalyst layer comprises a supported catalyst comprises electrically conductive carriers and fine catalytic particles supported thereon, a proton-conductive inorganic oxide supporting SiO01-07-2010
20090325018FIXED INSTALLATION FOR SUPPLYING ELECTRIC POWER COMPRISING A FUEL CELL - The invention concerns a fixed installation for supplying electric power comprising a fuel cell (12-31-2009
20090317681POWER SUPPLY APPARATUS HAVING PLURALITY OF PLANAR FUEL CELL ASSEMBLIES CONNECTED IN STACK FORM - A power supply apparatus comprising a plurality of planar fuel cell assemblies is disclosed. Each planar fuel cell assembly comprises two fuel cell members, a channel-forming member interposed between the two fuel cell members and defining a first channel for flowing a fluid fuel along with the two fuel cell members, and a coupling member to be coupled with an adjacent planar fuel cell assembly to define a second channel for flowing an ambient air, wherein the coupling member has a plurality of openings for flowing the ambient air therethrough.12-24-2009
20090169945Fuel Cell With Current Collectors Integrated With the Solid Electrolyte and Process for Manufacturing Such a Fuel Cell - A fuel cell comprises at least two current collectors, an electrically insulating separator element and solid electrolyte. Each current collector comprises at least one transverse passage passing through it from a first surface to a second surface and the separator element comprising opposite first and second faces is arranged between the current collectors. A plurality of transverse channels pass through the separator element from the first face to the second face and the ionically conducting solid electrolyte occupies the volume bounded by the channels of the separator element and by the passages of the current collectors. The separator element is formed by a thermoplastic polymer material and hard particles are arranged in the transverse channels.07-02-2009
20090162717FUEL CELL - A fuel cell having a capability of making uniform a water distribution in an in-plane direction of a polymer electrolyte membrane and supplying a reactive gas to an air electrode catalyst layer efficiently is provided. The fuel cell of the present invention has a polymer electrolyte membrane, a pair of catalyst electrodes, and a pair of metal separators. An air electrode separator has an oxidizing gas flow channel used to supply an oxidizing gas to the catalyst electrodes. The oxidizing gas flow channel is formed in such a manner that a flow channel near an oxidizing gas supply manifold and a flow channel near an oxidizing gas exhaust manifold are adjacent to each other in the same plane, and is formed in an S-shaped or spiral pattern.06-25-2009
20090035635Combination Structure Between Single Cell and Interconnect of Solid Oxide Fuel Cell - The present invention relates to a combination structure of a solid oxide fuel cell between an electrode and an interconnect in which the electrode and interconnect are sinter-joined to each other by using slurry in a status that a conventional current collector is excluded, thereby improving a strength and a sealing efficiency. The combination structure between a single cell and an interconnect of a solid oxide fuel cell which comprises electrolyte, and an anode and a cathode which are respectively contacted with both sides of the electrolyte; and an interconnect which are formed at both sides of the single cell and has a cathode passage for supplying air to the cathode and an anode passage for supplying fuel to the anode, is characterized by that one or both sides of the single cell are directly combined with the interconnect.02-05-2009
20090029219CATALYST, PROCESS FOR PRODUCING THE CATALYST, MEMBRANE ELECTRODE ASSEMBLY, AND FUEL CELL - This invention provides a highly active and stable catalyst, which is suitable for use in fuel cells while suppressing the amount of expensive noble metals used, i.e., platinum (Pt) and ruthenium (Ru), and a process for producing the catalyst, and a membrane electrode assembly and fuel cell using the catalyst. The catalyst comprises: an electro conductive support; and catalyst particles supported on the electro conductive support and having a composition represented by formula (1)01-29-2009
20090029220FUEL CELL - A fuel cell including an electrolyte film, a catalyst layer, two diffusion layers, a fuel supply layer, an oxygen supply layer, a water-absorbing layer, and a collector. The fuel cell has an opening at least in a part of a side surface parallel to a proton conduction direction of the electrolyte film among side surfaces of the fuel cell. The water-absorbing layer is present between the oxygen supply layer and the collector. An end portion of the water-absorbing layer is present on one of a plane including the opening and an opposite side of the fuel cell with the plane including the opening being a reference. A fuel cell system having a fuel cell stack including the fuel cells. The fuel cell has a high water discharging ability and is capable of maintaining stable high generation efficiency and providing a high output even while being small-sized and light-weight.01-29-2009
20090029221FUNCTIONAL ANCHORS CONNECTING GRAPHENE-LIKE CARBON TO METAL - Functional linkers or anchors interconnecting graphene-like carbon, such as nanotubes or graphite sheets, with a conducting material such as a metal, are shown, together with related structures, devices, methods and systems.01-29-2009
20080248358POLYMER ELECTROLYTE FUEL CELL AND PRODUCTION METHOD THEREOF - Provided is a polymer electrolyte fuel cell which can rapidly absorb and diffuse water produced in a porous metal body and allows the water to be transpirated into the atmosphere, thereby enabling a stable operation for a long period of time even at a time of high-humidity/high-current density operation. The polymer electrolyte fuel cell includes a polymer electrolyte membrane; a pair of catalyst layers and a pair of gas diffusion layers, each pair of which is disposed so as to sandwich the polymer electrolyte membrane; and a porous metal body disposed on at least one of the pair of gas diffusion layers, in which boehmite alumina having an arithmetic mean roughness Ra of 5 nm or more and 1 μm or less is provided on at least a part of a surface of the porous metal body.10-09-2008
20080254332FUEL CELL STACK AND MANUFACTURING METHOD OF THE SAME - A fuel cell stack includes a membrane electrode assembly including an anode electrode, a cathode electrode, and an electrolyte membrane positioned between the anode electrode and the cathode electrode; a separator including a channel for a flow of fuel and oxidant and closely adhered to the membrane electrode assembly; and a gasket with a two-layer structure stacked between the separator and the membrane electrode assembly.10-16-2008
20080254333Steam electrolytic apparatus and steam electrolytic method - To provide a high-temperature steam electrolytic apparatus and method that steam can be used as a common gas between a hydrogen electrode and an oxygen electrode, and the steam can be electrolyzed efficiently while the electrodes of the electrochemical cell are suppressed from oxidative and reductive degradation. A steam electrolytic apparatus 10-16-2008
20090035640Catalyst-loaded support used for forming electrode for fuel cell, and method of producing the same - Pt-loaded carbon particles loaded with a catalyst (platinum: Pt) according to a suitable catalyst loading method, such as a colloid method, are subjected to an aldehyde treatment or an acid treatment, or the like, so that hydroxyl groups are introduced into surfaces of the Pt-loaded carbon particles. Then, (1,1-diphenyl-4-pentenyl) benzene containing a benzene group as a hydrophobic functional group is chemically bound to carbon particle sites into which the hydroxyl groups have been introduced, through radical polymerization. The (1,1-diphenyl-4-pentenyl) benzene has a high-volume molecular structure, and the benzene groups as the hydrophobic functional groups exist above surface regions of the Pt-loaded carbon particles on which the catalyst particles are not supported, so as to repel water from the Pt-loaded carbon particles.02-05-2009
20100104913MEMBRANE-MEMBRANE REINFORCING MEMBER ASSEMBLY, MEMBRANE-CATALYST LAYER ASSEMBLY, MEMBRANE-ELECTRODE ASSEMBLY, POLYMER ELECTROLYTE FUEL CELL, AND METHOD FOR MANUFACTURING MEMBRANE-ELECTRODE ASSEMBLY - A membrane-membrane reinforcing member assembly includes: a polymer electrolyte membrane (04-29-2010
20090202885Process to prepare the self-stand electrode using porous supporter of electrode catalyst for fuel cell, a membrane electrode assembly comprising the same - The present invention relates to a porous electrode used in a polymer electrolyte membrane fuel cell, and more particularly to a method of preparing a membrane-electrode assembly by forming a self-stand electrode layer by coating catalyst ink on a non-conductive substrate having a macropore and then joining it to a polymer electrolyte membrane. The porous self-stand electrode according to the present invention allows moisture and gas to be smoothly discharged and inflowed in a high current density operation region to improve the performance of a fuel cell, and can be freely cutted to simplify the preparation process of the membrane-electrode assembly.08-13-2009
20100159299PASSIVE FUEL CELL ASSEMBLY - A passive fuel cell assembly including a membrane electrode assembly, an anode current collector, a cathode current collector, a hydrophilic and gas-impermeable layer, and a gas-liquid separation layer is provided. The anode current collector and the cathode current collector are disposed at two opposite sides of the membrane electrode assembly. The hydrophilic and gas-impermeable layer is disposed on the anode current collector. The gas-liquid separation layer is disposed on the hydrophilic and gas-impermeable layer, such that the hydrophilic and gas-impermeable layer is disposed between the gas-liquid separation layer and the anode current collector.06-24-2010
20100068590HYDROPHILIC LAYER FOR USE IN A FUEL CELL - A device that is useful for managing moisture content within a fuel cell assembly (03-18-2010
20100068585LONG-LIFE MEMBRANE ELECTRODE ASSEMBLIES - The present invention relates to a membrane electrode assembly comprising a) two electrochemically active electrodes (03-18-2010
20100068591FUEL CELL CATALYST, FUEL CELL CATHODE AND POLYMER ELECTROLYTE FUEL CELL INCLUDING THE SAME - The present invention actualizes a polymer electrolyte fuel cell that exhibits a high durability even when undergoing electric potential variation cycles. Used is a fuel cell catalyst characterized in that a metal catalyst, and an oxide of niobium (Nb2O5) and/or an oxide of tantalum (Ta2O5) are supported on a conductive material.03-18-2010
20100068588MEMBRANE-MEMBRANE REINFORCING MEMBRANE ASSEMBLY, MEMBRANE-CATALYST LAYER ASSEMBLY, MEMBRANE-ELECTRODE ASSEMBLY, AND POLYMER ELECTROLYTE FUEL CELL - A membrane-membrane reinforcing member assembly includes: a polymer electrolyte membrane (03-18-2010
20100068587SOLID POLYMER FUEL CELL - A solid polymer fuel cell includes a solid polymer electrolytic membrane 03-18-2010
20100068586FUEL CELL COUPLER AND FUEL CELL USING SAME - A fuel cell coupler includes a socket section (03-18-2010
20090202882POLYMER ELECTROLYTE FUEL CELL AND FUEL CELL SYSTEM INCLUDING THE SAME - A polymer electrolyte fuel cell includes a cell stack (08-13-2009
20090202887CATALYST, ELECTRODE, MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELL - Disclosed is a catalyst, including a catalyst particle containing at least one component selected from the group consisting of gold, platinum and an gold alloy, the gold alloy containing gold and at least one element selected from transition metal elements of the fourth period, fifth period and sixth period of the Periodic Table, and a catalyst carrier carrying the catalyst particle and containing a perovskite type oxide represented by general formula (1) given below:08-13-2009
20090202886MICRO FUEL CELL ARCHITECTURE - The present invention relates to fuel cells and components used within a fuel cell. Heat transfer appendages are described that improve fuel cell thermal management. Each heat transfer appendage is arranged on an external portion of a bi-polar plate and permits conductive heat transfer between inner portions of the bi-polar plate and outer portions of the bi-polar plate proximate to the appendage. The heat transfer appendage may be used for heating or cooling inner portions of a fuel cell stack. Improved thermal management provided by cooling the heat transfer appendages also permits new channel field designs that distribute the reactant gases to a membrane electrode assembly. Flow buffers are described that improve delivery of reactant gases and removal of reaction products. Single plate bi-polar plates may also include staggered channel designs that reduce the thickness of the single plate.08-13-2009
20090202884POLYMER ELECTROLYTE FUEL CELL AND MANUFACTURING METHOD FOR ELECTRODE-MEMBRANE-FRAME ASSEMBLY - A MEA-frame assembly is arranged in a mold for injection molding to form a first flow passage arranged so as to extend along the outer periphery of an electrode between the outer periphery of the electrode and the inner periphery of a frame, a second flow passage arranged so as to extend along an inner elastic member between the inner periphery and outer periphery of the frame and a plurality of connecting flow passages which communicate the first flow passage with the second flow passage. An elastic resin is injected into the first flow passage to fill the first flow passage with the elastic resin and to fill the second flow passage with the elastic resin through each of the communicating flow passages, thereby an elastic member which hermetically seals the space between the MEA-frame assembly and the separator is integrally formed.08-13-2009
20090202881SINGLE-CHAMBER-TYPE SOLID OXIDE FUEL CELL DEVICE - A solid-oxide fuel cell having a fuel pole and an air pole joined to a solid oxide electrolyte is arranged in a combustion exhaust gas flow channel of an engine or the like (fuel cell containing section), thereby placed in a flow of high-temperature combustion exhaust gas introduced through an exhaust gas introduction section into the fuel cell containing section and discharged through an exhaust gas discharge section, so that the solid-oxide fuel cell is heated by the thermal energy of the combustion exhaust gas and generates electric power using a hydrocarbon compound and carbon oxide in the combustion exhaust gas, as fuel gas.08-13-2009
20090202879FUEL CELL - The present invention provides a fuel cell comprising: a cathode catalyst layer 08-13-2009
20090197135Multilayer glass-ceramic seals for fuel cells - A fuel cell includes a ceramic component and a sealing component. The sealing component includes a first glass-ceramic layer over the ceramic component and a second glass-ceramic layer over the first glass-ceramic layer, each of the first and the second glass-ceramic layers independently including between about 0.5% and about 50% glass phase content by volume. The first glass-ceramic layer includes a higher glass phase content than the second glass-ceramic layer, and between about 0.5% and about 10% glass stabilizer component by weight. In a method of sealing a ceramic component of a fuel cell, a first coat is applied over a first ceramic component of the fuel cell, the first coat including SiO08-06-2009
20090197134FUEL CELL WITH A SEPARATOR PLATE UNIT, AND A SEPARATOR PLATE UNIT - The invention relates to a fuel cell having a membrane electrode arrangement (08-06-2009
20090176140FUEL CELL PROVIDING IMPROVED DISPOSING STRUCTURE FOR UNIT CELLS - A fuel cell including a plurality of unit cells that each includes an anode, an electrolyte membrane, and a cathode. The unit cells are stacked together, such that the unit cells form rows and furrows. The fuel cell can further include an anode frame to support an anode side of the fuel cell stack, and a cathode frame to support a cathode side of the fuel cell stack. The fuel cell can include reinforcing members to support either of the frames.07-09-2009
20090176139PASSIVATED METALLIC BIPOLAR PLATES AND A METHOD FOR PRODUCING THE SAME - A method including providing a substrate; treating the substrate to form a passive layer, wherein the passive layer has a thickness of at least 3 nm; and 07-09-2009
20100028744GAS DIFFUSION LAYER WITH LOWER GAS DIFFUSIVITY - A gas diffusion layer for use in fuel cells comprises a fiber and non-fiber material in a ratio such that the water vapor diffusion transport resistance is greater than 0.8 s/cm measured at 80 C and 150 kPa absolute gas pressure when the gas diffusion layer has a thickness less than or equal to 300 microns. Another gas diffusion layer comprises a fiber and non-fiber material in a ratio such that the water vapor diffusion transport resistance is lower than 0.4 s/cm measured at 80 C and 150 kPa absolute gas pressure when the gas diffusion layer has a thickness greater than or equal to 100 microns. Fuel cells incorporating the gas diffusion layers are also provided.02-04-2010
20100021786FUEL CELL - A fuel cell includes a hydrogen permeable metal substrate and an electrolyte layer. The hydrogen permeable metal substrate acts as an anode. The electrolyte layer is provided on the hydrogen permeable metal substrate and has proton conductivity. At least a part of the hydrogen permeable metal substrate is composed of a metal having a recrystallization temperature higher than a given temperature.01-28-2010
20100021788POLYMER ELECTROLYTE COMPOSITE FILM, MEMBRANE-ELECTRODE ASSEMBLY AND FUEL CELL - The invention provides a polymer electrolyte composite film which is superior in membrane properties and membrane strength and can achieve high proton conductivity, and a membrane-electrode assembly and a fuel cell which use the membrane. The polymer electrolyte composite film contains a block copolymer including a hydrophilic block and a hydrophobic block, and a solid acid, and has a microphase separation structure including a hydrophilic domain formed from the hydrophilic block and a hydrophobic domain formed from the hydrophobic block. The solid acid is localized in the hydrophilic domain.01-28-2010
20100021787PROCESSES FOR PRODUCING CATALYST-LAYER-SUPPORTING SUBSTRATE, CATALYST-LAYER-SUPPORTING SUBSTRATE, MEMBRANE ELECTRODE ASSEMBLY, AND FUEL CELL - The processes include: a layer superposition step in which the step of sputtering or vapor-depositing a mixture layer including a first pore-forming metal and a catalyst metal on a substrate and the step of forming an interlayer of a second pore-forming metal or a fibrous-carbon interlayer are alternately conducted repeatedly two or more times to thereby form a multilayer structure containing mixture layers and interlayers; and a pore formation step in which after the layer superposition step, the multilayer structure is subjected to a pore formation treatment.01-28-2010
20100021785MEMBRANE-ELECTRODE ASSEMBLY FOR A FUEL CELL AND A FUEL CELL SYSTEM INCLUDING THE SAME - A membrane-electrode assembly for a fuel cell includes a cathode and an anode facing each other, and a polymer electrolyte membrane interposed therebetween. Each of the cathode and the anode includes an electrode substrate and a catalyst layer disposed on the electrode substrate. At least one of the electrode substrate of the anode or the electrode substrate of the cathode includes a metal layer disposed thereon.01-28-2010
20080299430Gas Diffusion Electrode and Solid Polymer Electrolyte Fuel Cell - A gas diffusion electrode includes: an electrode catalyst layer 12-04-2008
20090075142NANOIMPRINTED ELECTRODES FOR FUEL CELLS - Nanoimprint lithography (NIL) method to fabricate electrodes with high specific Pt surface areas that can be used in fuel cell devices. The Pt catalyst structures were found to have electrochemical active surface areas (EAS) ranging from 0.8 to 1.5 m03-19-2009
20090017356PROTON CONDUCTING MATERIAL, AND ELECTRODE AND FUEL CELL USING THE SAME - To provide a proton conducting material with which an electrode and a fuel cell capable of functioning in a stable manner even without humidification in a temperature range from room temperature to about 200° C. can be achieved. The proton conducting material includes a porous structural material having pores and a heterocyclic organic compound having proton conductivity. The organic compound contained inside the pores has a crystallite size D of 50 nm or less.01-15-2009
20090286125BI-ELECTRODE SUPPORTED SOLID OXIDE FUEL CELLS HAVING GAS FLOW PLENUM CHANNELS AND METHODS OF MAKING SAME - A solid oxide fuel cell (SOFC) has a porous electrode support structure on both sides of a thin electrolyte layer. The porous electrode supported cell is formed with gas flow plenum channels on an outer surface of the electrode scaffold.11-19-2009
20090075144BIPOLAR PLATE AND FUEL CELL COMPRISING SUCH A BIPOLAR PLATE - The invention relates to a bipolar plate, for fuel cells, characterised in comprising a layer of a hydrophobic material which is soluble in a solvent, on the surfaces thereof. Water forms small droplets on the surfaces of the bipolar plate due to said layer, which are loosely held on the surface of the bipolar plate and which can be reliably removed from the fuel cell even with low flow speeds for the operating gases. The thickness of the layer and thus the hydrophobicity thereof and the electrical contact resistance between the bipolar plate and a contacting electrode may be adjusted in a simple manner, by varying the concentration of the hydrophobic material in the solvent.03-19-2009
20090162718Low Impurity Elastomeric Material - Embodiments of the present invention include cured elastomeric materials of high purity, compositions for making them, and articles comprising the cured elastomeric materials. Embodiments of the invention include cured elastomers that have less than 200 ng/cm2 of calcium. In some embodiments, the cured elastomer is made from cross linked ethylene-propylene-diene terpolymers and can be free from cross linked fluorpelastomers or silicone elastomers. The cured elastomers in embodiments of the present invention may be used for seals including o-rings and gaskets.06-25-2009
20090239117Fuel Cell, Membrane Electrode Assembly and Manufacturing Method Thereof - This invention provides a membrane electrode assembly having sufficient water retention ability and a high level of battery performance even under a low humidification condition. This invention discloses a manufacturing method of a membrane electrode assembly which has catalytic layers on both surfaces of a polymer electrolyte membrane. This manufacturing method includes following processes: A coating process that a catalyst ink which contains catalyst loading particles, a polymer electrolyte and a solvent is coated on a single surface of each of two base substrates. An arranging process in which a polymer electrolyte membrane is arranged between the two base substrates in a way that each of the base substrate's surfaces on which the catalyst ink is coated faces the polymer electrolyte membrane. A transferring process in which the catalyst ink coated on the two base substrates is transferred to both surfaces of the polymer electrolyte membrane to form the catalytic layers. A peeling process in which the two base substrates, which are attached to both sides of the polymer electrolyte membrane via the catalytic layers, are peeled off from the polymer electrolyte membrane and the catalytic layers. In addition, this manufacturing method has the following features: Each surface roughness (SRa) of the catalytic layers formed on the polymer electrolyte membrane after the peeling process is in the 0.01-1.00 μm range. Each gloss value at 85° (cf. JIS (Japanese Industrial Standard) Z 8741) of a surface of said catalytic layers is in the 10-80% range.09-24-2009
20100159300CASSETTE LESS SOFC STACK AND METHOD OF ASSEMBLY - A cassette less SOFC assembly and a method for creating such an assembly. The SOFC stack is characterized by an electrically isolated stack current path which allows welded interconnection between frame portions of the stack. In one embodiment electrically isolating a current path comprises the step of sealing a interconnect plate to a interconnect plate frame with an insulating seal. This enables the current path portion to be isolated from the structural frame an enables the cell frame to be welded together.06-24-2010
20100092829GAS ELECTRODE, METHOD FOR MAKING THE SAME AND USES THEREOF - A gas electrode includes a plurality of stacked layers (04-15-2010
20100092828FUEL CELL - A fuel cell is disclosed. The fuel cell in accordance with an embodiment of the present invention includes: a membrane-electrode assembly, which has an electrolyte membrane, an anode being formed on one surface of the electrolyte membrane and a cathode being formed on the other surface of the electrolyte membrane; and an auxiliary electric power supply having a flow path formed on the surface thereof and being laminated on the membrane-electrode assembly such that the flow path faces the membrane-electrode assembly.04-15-2010
20100092826FUEL CELL AND FUEL CELL SYSTEM - A fuel cell has an electrolyte, an anode provided on one side of the electrolyte and a cathode provided on the other side of the electrolyte, and a fuel passage which is formed so as to contact the anode and through which fuel flows. A substance having an ion-conducting property is mixed in with the fuel that flows through the fuel passage. For example, fuel is supplied to the fuel passage from a fuel supply apparatus, while a substance having an ion-conducting property is supplied to the fuel passage from an ion-conducting substance supply apparatus.04-15-2010
20090130522Fuel cell module and structure for gas supply to fuel cell - A conductive and tabular separator is inserted into the gap between the fuel electrode layer of an i-th power generating cell and the oxidizer electrode layer of an (i+l)-th power generating cell adjacent to the fuel electrode layer. A fuel supply passage is so formed on one face of each of these separators that a fuel gas flows radially from almost the center of the fuel electrode layer to its edge. An oxidizer supply passage is so formed on the other face that an oxidizer gas outgoes almost uniformly in a shower toward the oxidizer polar layer. Thus, all of the surfaces of the power generating cells contribute to power generation to increase the frequency of collision between the fuel gas and the fuel electrode layer and that between the oxidizer gas and the oxidizer electrode layer, and to improve the generation efficiency.05-21-2009
20090130520FUEL BATTERY - A fuel cell that can prevent local accumulation of a reaction-irrelevant gas in the fuel cell. A gas diffusion layer is stacked on a membrane electrode assembly, which is a stack of an electrolyte membrane and electrode catalyst layers. A separator including gas flow channels is attached to the gas diffusion layer such that the gas flow channels are adjacent to the gas diffusion layer. A gas distribution channel through which gas supplied to the membrane electrode assembly flows is formed in the separator. The gas flow channels communicate with the gas distribution channel at upstream ends thereof and are substantially closed at downstream ends thereof. The gas flow channels are configured so that downstream parts of the gas flow channels and upstream parts of the gas flow channels are adjacent to each other.05-21-2009
20090130521Plate Solid Oxide Fuel Cell - For a plate solid oxide fuel cell, costs thereof are made low and the thermal conductivity thereof is improved, and further only by effect of the shape thereof, a burning gas is sealed while a back diffusion phenomenon of air from the outside is restrained. Plate-shaped unit cells 05-21-2009
20090130519FUEL CELL05-21-2009
20090130517SOLID ELECTROLYTE MEMBRANE, METHOD AND APPARATUS OF PRODUCING THE SAME, MEMBRANE ELECTRODE ASSEMBLY, AND FUEL CELL05-21-2009
20090130516Electrolyte Membrane and Process for Producing the Same - An electrolyte membrane 05-21-2009
20090130515Electrode for fuel cell, membrane-electrode assembly including same, and fuel cell system including same - The electrode for a fuel cell according to one embodiment of the present invention includes an electrode substrate and a catalyst layer disposed on the electrode substrate, the catalyst layer including metal nanoparticles, a binder and a catalyst. The metal nanoparticles in the catalyst layer improve electrical conductivity, and also have catalyst activity to implement a catalytic synergetic effect so as to provide a high power fuel cell.05-21-2009
20100047654FUEL CELL SYSTEM - The fuel cell system of liquid fuel direct supply type includes an proton-conductive solid polymer film as an electrolyte, a cell part containing an anode and a cathode disposed to face each other with the proton-conductive solid polymer film intervening therebetween, a filter for removing metallic ions from a liquid fuel, a fuel supplying line for supplying the liquid fuel to the cell part through the filter, and an oxygen supplying line for supplying oxygen to the cell part, and the filter contains an inorganic ion exchange material.02-25-2010
20100047653PRINTED CIRCUIT BOARD AND FUEL CELL - A pair of rectangular collector portions and extraction conductor portions that each extend in a long-sized shape from the respective collector portions are formed on one surface of a base insulating layer. A carbon containing layer is formed on the base insulating layer to cover the collector portion and the extraction conductor portion excluding a tip. A carbon containing layer and a solder resist layer are formed on the base insulating layer to cover the collector portion and the extraction conductor portion excluding a tip. The solder resist layer is formed to cover a portion of the extraction conductor portion above a bend portion.02-25-2010
20100047651SHEET BODY OF SOLID OXIDE FUEL CELL, AND SOLID OXIDE FUEL CELL - A sheet body 02-25-2010
20100047649Membrane Electrode Assembly, Method For Producing The Same, and Solid Polymer Fuel Cell Using The Same - The present invention provides a membrane electrode assembly that enhances the reliability, mechanical strength, and handling characteristics of a seal in a solid polymer electrolyte fuel cell. The membrane electrode assembly of the present invention comprises a membrane-electrode structure having electrode layers and gas diffusion layers on both sides of a polymer electrolyte membrane, and a resin frame provided in such a manner as to fully enclose the outer periphery of the electrolyte membrane and to enclose at least portions of the outer peripheries of the gas diffusion layers, the resin frame being provided so as to enclose the electrolyte membrane side. The gas diffusion layer and electrode layer on one side are stacked on a surface of the electrolyte membrane so that a surface region of the electrolyte membrane is left exposed. The gas diffusion layer on the opposite side extends all around the outer periphery of the electrolyte membrane. The resin frame is attached fixedly to at least a portion to the surface region.02-25-2010
20100047648Hydrogen Separation Membrane with a Carrier, Fuel Cell and Hydrogen Separation Apparatus Having Same, and Method of Manufacturing Same - A method of manufacturing a hydrogen separation membrane with a carrier is characterized by including a first step of providing, between the hydrogen separation membrane and the carrier that supports the hydrogen separation membrane, a low-hardness metal membrane having a hardness that is lower than the hardness of the hydrogen separation membrane, and a second step of joining the hydrogen separation membrane, the low-hardness metal membrane, and the carrier by a cold joining method. In this case, it is possible to suppress the deformation of the hydrogen separation membrane, the low-hardness metal membrane, and the carrier and, as a result, it is possible to prevent damaging of the hydrogen separation membrane. The adhesion of the contact between the hydrogen separation membrane and the carrier is also improved. The result is that it is not necessary to increase the severity of the cold joining conditions.02-25-2010
20100047650SEPARATOR FOR FUEL CELL, SINGLE CELL UNIT FOR FUEL CELL, SHORT STACK UNIT FOR FUEL CELL, AND PRODUCTION METHODS OF SEPARATOR FOR FUEL CELL AND CELL UNIT (SINGLE CELL UNIT OR SHORT STACK UNIT) FOR FUEL CELL - A high-performance separator for a fuel cell and a high-performance cell unit (single cell unit or short stack unit) for a fuel cell, each ensuring lightweight and compact fabrication necessary to enhance output density, enabling stacking without use of a gas seal member and making the insulating treatment of the outer circumference of the stack not necessary, and production methods thereof are provided.02-25-2010
20090068524ANHYDROUS PROTON CONDUCTOR BASED ON HETEROCYCLE ATTACHED TO A POLYMER BACKBONE - The invention relates to proton-conducting polymers, including tetrazole-containing polymers. Proton-conducting membranes useful for fuel cell applications are formed from mixtures of a polymer with one or more non-aqueous proton sources. In representative examples of the present invention, tetrazole groups are attached to a polymer backbone such as polyphosphazene, the tetrazole groups interacting with the proton source.03-12-2009
20080305377LONG METALLIC NANOWIRES, METHODS OF MAKING, AND USE THEREOF IN PROTON EXCHANGE MEMBRANE FUEL CELL - A method and apparatus for making a metallic nanofiber structure are disclosed. The method includes the steps of: providing a first solution including a first material and a second material, wherein the second material includes at least one metal; forming the first solution into composite fibers including the first material and the second material; and removing the first material from the composite fibers under conditions effective to produce a metallic nanofiber structure that includes a plurality of metallic nanofibers. Also disclosed are metallic nanofiber structures prepared according to a process of the present invention, which can be used as fuel cell catalysts. Fuel cells containing electrodes that include these metallic nanofiber structures are also disclosed.12-11-2008
20100035112SOLID OXIDE FUEL CELL - A highly efficient solid oxide fuel cell having a sharply increased electrode area per volume includes a plurality of individual electric cells placed one atop another. Each of the individual electric cells includes an electrolyte block having a plurality of channels and a plurality of first passageways communicating with the channels, a cover plate attached to the electrolyte block for closing up top portions of the channels, the cover plate having a plurality of second passageways communicating with the channels, and a plurality of air electrodes and fuel electrodes alternately arranged within the channels. The solid oxide fuel cell further includes a first side plate attached to first lateral sides of the individual electric cells for closing up first lateral ends of the channels and a second side plate attached to second lateral sides of the individual electric cells for closing up second lateral ends of the channels.02-11-2010
20100009234METHOD FOR GENERATING A CATALYST LAYER - A method for producing a catalyst layer (01-14-2010
20100009233FUEL CELL WITH REDUCED MASS TRANSFER LIMITATIONS - This disclosure related to polymer electrolyte member fuel cells and components thereof.01-14-2010
20100009231STACK AND FUEL CELL POWER GENERATION SYSTEM HAVING THE SAME - A stack and a fuel cell power generation system equipped with the stack are disclosed. In accordance with an embodiment of the present invention, the stack, which generates electrical energy by reacting hydrogen with oxygen and in which the hydrogen is supplied as a fuel and the oxygen is in the air, includes: a membrane electrode assembly (MEA), which includes an electrolyte membrane and a pair of electrodes coupled to either surface of the electrolyte membrane; and a pair of current collectors, which is formed on either surface of the membrane electrode assembly, in which the current collector includes: an insulating polymer film; and a conductive adhesive layer, which is interposed between the insulating polymer film and the membrane electrode assembly.01-14-2010
20100009232FUEL CELL ASSEMBLY - An MEA comprising: (i) a central first conductive gas diffusion substrate having a first face and a second face; (ii) first and second catalyst layers each having a first and second face and wherein the first face of the first catalyst layer is in contact with the first face of the gas diffusion substrate and the first face of the second catalyst layer is in contact with the second face of the gas diffusion substrate; (iii) first and second electrolyte layers each having a first and second face and wherein the first face of the first electrolyte layer is in contact with the second face of the first catalyst layer and the first face of the second electrolyte layer is in contact with the second face of the second catalyst layer; (iv) third and fourth catalyst layers each having a first and second face and wherein the first face of the third catalyst layer is in contact with the second face of the first electrolyte layer and the first face of the fourth catalyst layer is in contact with the second face of the second electrolyte layer; and (v) first and second porous current collecting means each having a thickness of less than 400m, and each having a first and second face and wherein the first face of the first current collecting means is in contact with the second face of the first catalyst layer and the first face of the second current collecting means is in contact with the second face of the fourth catalyst layer is disclosed and a fuel cell comprising such an MEA.01-14-2010
20090061276ANODE FOR FUEL CELL AND FUEL CELL USING THE SAME - This invention provides an anode for a fuel cell which can realize stable output for a long period of time, and a fuel cell using the anode for a fuel cell. The anode for a fuel cell comprises an electrode catalyst layer, the electrode catalyst layer comprising a supported catalyst comprising an electroconductive carrier material and catalyst fine particles supported on the electroconductive carrier material, a proton conductive inorganic oxide, and a proton conductive organic polymer binder, the weight ratio between the supported catalyst (C) and the proton conductive inorganic oxide (SA), W03-05-2009
20090061275Carbonized Paper With High Strength And Its Preparation Method And Uses - Strengthened carbonized paper, its preparation method and uses are provided. The carbonized paper comprises a mixed spun fabric containing oxidized fibers and polyamide fibers as the reinforced material. The carbonized paper has good tensile strength and electric conductivity. The carbonized paper can be used as the gas diffusion layer material in the fuel cell for better performance. Moreover, the carbonized paper of the subject invention is useful as the anti-electromagnetic material and reinforced composite material.03-05-2009
20090017355SOLID POLYMER FUEL CELL - A solid polymer fuel cell stack. A fuel cell which can uniformly supply gas in a short time to all stacked cells not only in a steady state operation but also in a transient operation state, such as start, stop, or load variation operation, is provided. In each cell included in the solid polymer fuel cell stack, an intake manifold is divided into a connection space with a separator channel and one more space by forming a protrusion or a bridge portion in the intake manifold, and the structure of the protrusion or the bridge portion is adjusted depending on each cell.01-15-2009
20080299433IMMOBILIZED HETEROPOLY ACIDS AND THE USE OF THE SAME FOR ELECTRODE STABILIZATION AND ENHANCEMENT - The use of fuel cells to produce electricity are known as an environmentally clean and reliable source of energy, and show promise as an automotive power source if the polymer electrolyte membrane fuel cell can be made less expensive, more durable, reduce or eliminate humidification of the reactive gases, and operate at temperatures encountered during automotive operating conditions. The use of an electro-catalyst formed from heteropoly acids immobilized by a conductive material, such as carbon or platinum black, and stabilizing a metallic black with the immobilized conductive material addressed these automotive fuel cell needs. Coating the fuel cell electrode, polymer electrolyte assembly with a nano-particle catalyst derived from a heteropoly acid provided anodic carbon monoxide tolerance at anodic overpotentials and an active cathodic oxygen reduction. The heteropoly acids can also function as supercapacitor electrode films.12-04-2008
20080299434SOLID OXIDE TYPE FUEL CELL AND MANUFACTURING METHOD THEREOF - A solid oxide type fuel cell has a solid electrolyte substrate with a flat plate shape, and a cathode electrode layer is formed in a flat plate shape on one surface of the substrate and an anode electrode layer is formed in a flat plate shape on the other surface. The cathode electrode layer and the anode electrode layer are formed by the same electrode formation material. One or both of the cathode electrode layer and the anode electrode layer contain the electrode formation material and a solid electrolyte, and a concentration of the solid electrolyte included in the cathode electrode layer or the anode electrode layer increases with approach to the solid electrolyte substrate. Also, the solid oxide type fuel cell is formed by simultaneously calcining the solid electrolyte substrate, the cathode electrode layer and the anode electrode layer.12-04-2008
20080280180FUEL CELL ASSEMBLY AND METHOD OF MAKING SAME - A system for fabricating a fuel cell component in which a deposition mechanism deposits loading material particles onto the fuel cell component and an actuation mechanism actuates the deposition mechanism. A unit provides a tape fixing agent to the fuel cell component and loaded material particles so as to retain the particles on the fuel cell component. Other fuel components are retained to the fuel cell component also using a tape fixing agent.11-13-2008
20100167099MEMBRANCE ELECTRODE ASSEMBLY (MEA) STRUCTURE AND MANUFACTURING METHOD THEREOF - A membrane electrode assembly (MEA) structure includes a proton exchange membrane having opposite first and second sides, a cathode catalyst layer disposed at the first side of the proton exchange membrane, an anode catalyst layer disposed at the second side of the proton exchange membrane, a first composite gas diffusion layer disposed at the first side of the proton exchange membrane and adjacent to the cathode catalyst layer, including a first gas diffusion substrate layer and a first micro-porous layer disposed between the first gas diffusion substrate layer and the cathode catalyst layer, and a second composite gas diffusion layer disposed at the second side of the proton exchange membrane and adjacent to the anode catalyst layer, including a second gas diffusion substrate layer and a second micro-porous layer disposed between the second gas diffusion substrate layer and the anode catalyst layer.07-01-2010
20100129694FUEL CELL - A fuel cell is formed by sandwiching a membrane electrode assembly between a first separator and a second separator. A fuel gas flow field is formed in the second separator. An inlet buffer is connected to the inlet of the fuel gas flow field, and an outlet buffer is connected to an outlet of the fuel gas flow field. The inlet buffer is deeper than the outlet buffer. Therefore, the pressure loss in the inlet buffer is smaller than the pressure loss in the outlet buffer.05-27-2010
20080248360FUEL CELL - A fuel cell comprises an anode oxidizing a fuel, a cathode reducing an oxidizing agent, a polymer electrolyte disposed between the anode and the cathode, whereby an assembly is constituted by the anode, cathode and polymer electrolyte, a pair of gas diffusion layers disposed at both sides of the assembly of the anode, and the cathode, a bipolar plate for providing the fuel to the gas diffusion layer, and another bipolar plate for providing the oxidizing agent to the gas diffusion layer, wherein at least one of the gas diffusion layers includes a porous gas diffusion layer substrate having a hydrophilic surface layer, and wherein particles of a water-repellent material are dispersed in pores of the porous gas diffusion layer substrate. This results in a higher cell voltage and a higher power at a high current density, prevention of a flooding and a longer cell lifetime.10-09-2008
20080248359FUEL CELL - A fuel cell includes a membrane electrode assembly including an electrolyte membrane, and anode and cathode electrodes sandwiching the electrolyte membrane therebetween; a gas/liquid separation layer provided at an opposite side of the anode electrode with the electrolyte membrane; an auxiliary porous layer provided on the gas/liquid separation layer; and an anode passage plate provided on the auxiliary porous layer, including a fuel passage, wherein the auxiliary porous layer is softer than the gas/liquid separation layer and the anode passage plate, and including lyophobic, electric conductive and gas permeability properties.10-09-2008
20080248356Production Method for Sold Polymer Electrolyte Membrane, Solid Polymer Electrolyte Membrane, and Fuel Cell Including Solid Polymer Electrolyte Membrane - The performance of an electrolyte membrane (10-09-2008
20080233450FUEL CELL - A fuel cell includes: a membrane electrode assembly having: an electrolyte membrane, anode and cathode catalyst layers, and anode and cathode gas diffusion layers; a cathode porous body provided at an outer side of the cathode gas diffusion layer; and a cathode member provided at an outer side of the cathode porous body, an inner side of the cathode member having a protruded portion facing to the outer side of the cathode porous body, wherein a pressure is applied to the cathode porous body through the protruded portion of the cathode member so as to compress the cathode porous body.09-25-2008
20080226959Fuel cell - A fuel cell includes: a membrane electrode assembly provided with an electrolyte membrane and gas diffusion electrodes attached to both sides of the electrolyte membrane; separators supporting the membrane electrode assembly from both sides thereof; a gas flow path forming member disposed between the separator and the gas diffusion electrode to form gas flow path for supplying reactant gas for power generation in the fuel cell to the gas diffusion electrode; and an elastic member disposed between the separator and the gas flow path forming member and having an elastic modulus which is higher than that of the gas flow path forming member.09-18-2008
20080220308Source blank for stainless steel three-ply clad sheet, production methods of clad steel plate and sheet for solid polymer type fuel cell separator, and solid polymer type fuel cell separator - Provided is a first method for producing a source blank for a clad steel sheet composed of a stainless steel containing 0 to 0.3% B as a core component and a stainless steel containing 0.3 to 2.5% B as face components, the face components each being combined with each of major faces of the core component through the following steps and the like: Step 1: disposing, on side end faces of each face component, protectors with a length greater than a length of the side end faces, disposing tabs each in abutting relation with an extension of the protector's face to abut on the side end face of the face component, and performing bonding between the tabs and the protectors and between the face component and the protectors; Step 2: each composite, which is obtained by removing the tabs and extended portions of the protectors bonded with the tabs from the workpiece after Step 1, is piled on either major face of the core component to thereby obtain a combined block; and Step 3: performing bonding at boundary regions on peripheral four side end faces of the combined block. Further, there is provided a second method for producing a stainless steel three-ply clad sheet for a fuel cell separator, comprising heating the source blank produced by the first method and then performing rough rolling, hot rolling and cold rolling thereto, whereby the clad steel sheet for the fuel cell separator or a solid polymer type fuel cell separator thereby is obtained. According to this, a source blank for a stainless steel three-ply clad sheet and a separator steel sheet, including B-containing steel as a face layer, which are most suitably used as a solid polymer type fuel cell separator can be provided.09-11-2008
20080220307Membrane electrode assembly, method for manufacturing the same, and fuel cell including the same - A membrane electrode assembly includes an electrolyte membrane, an anode disposed on one face of the electrolyte membrane, and a cathode disposed on the other face of the electrolyte membrane. The electrolyte membrane has a non-electrode-forming region where the cathode is not disposed on the surface of the non-electrode-forming region and an electrode-forming region where the cathode is disposed on the surface of the electrode-forming region. The non-electrode-forming region has a thin membrane region where the membrane is thinner than that in the electrode-forming region. The drop in power generation efficiency by water generated at the cathodes is prevented.09-11-2008
20080220306Fuel cell electrode and method for producing the same - A fuel cell electrode having excellent power generation capability which includes a catalyst layer, a gas diffusion layer and a water-repellent layer interposed therebetween. The water-repellent layer has a uniform thickness. One surface of the water-repellent layer is bonded to the catalyst layer. The other surface of the water-repellent layer faces the gas diffusion layer. The catalyst layer and the water-repellent layer are in intimate contact with each other and have substantially no interstice therebetween.09-11-2008
20090136812Nickel oxide powder material for solid oxide fuel cell, production process thereof, raw material composition for use in the same, and anode material using the nickel oxide powder material - This invention provides a nickel oxide powder material, a production process thereof with high efficiency, a raw material composition for use in the same, and an anode material using the nickel oxide powder material. The nickel oxide powder material, when used as an anode material for a solid oxide fuel cell, can reduce heat shrinkage percentage in calcination to reduce a shrinkage difference from other component, and can suppress the occurrence of cracking, delamination, warpage and the like during calcining. Also in power generation after re-reduction after exposure of the anode once to an oxidizing atmosphere, for example, due to the disruption of the fuel supply, deterioration of microstructure of the anode can be suppressed, and the voltage drop percentage of the cell can be reduced. The nickel oxide powder material is used in an anode material constituting a solid oxide fuel cell and is characterized in that spinel compound represented by compositional formula: NiM05-28-2009
20080213644SOLID POLYELECTROLYTE TYPE FUEL CELL AND METHOD OF PRODUCING THE SAME - To provide a solid polyelectrolyte type fuel cell having excellent reliability and a method of producing the same by reducing electric interface resistance between an electrode and a solid polyelectrolyte membrane by improving contact area and cohesion between the electrode and the solid polyelectrolyte membrane. The present invention relates to a solid polyelectrolyte type fuel cell including a polyelectrolyte membrane and a pair of electrodes sandwiching the polyelectrolyte membrane, and the electrodes have a catalyst layer containing catalyst-carrying carbon particles, and at least one surface of the polyelectrolyte membrane has a bumpy face in which a bumpy shape is formed, and the catalyst layer is formed in close contact with the bumpy shape of the bumpy face.09-04-2008
20080206618ELECTROCHEMICAL DEVICES AND ELECTROCHEMICAL APPARATUS - A planar type electrochemical device 08-28-2008
20080199752Electrochemical stack with pressed bipolar plate - An electrochemical cell having a central active area and a perimeter area, the electrochemical cell including: a membrane electrode assembly (MEA) having a first electrode, a proton exchange membrane, and a second electrode of opposite electrical polarity to the first electrode; a pressed metal interconnect having on a first side a raised portion in electrical contact with the first electrode; the interconnect and the first electrode defining at least one fluid channel between the interconnect and the first electrode in the central active area, such that a fluid conveyed in the fluid channel is in fluid communication with the first electrode; a gasket interposed between the membrane and the interconnect in the perimeter area, such that the fluid is sealed within the fluid channel; and a fluid opening in the gasket allowing fluid communication between the fluid channel and a manifold in the perimeter area.08-21-2008
20080199751Bipolar plate for an air breathing fuel cell stack - A bipolar interconnect plate for a fuel cell, including: a first surface having a series of conductive interconnect posts for forming a conductive interconnect for conductively interconnecting, in use, with a cathode surface of a MEA; the plate including a series of ridges surrounding the first surface having air access slots therein in fluid communication with the first surface.08-21-2008
20080199750UNIT CELL HEADER FLOW ENHANCEMENT - A fluid flow field plate for an electrochemical fuel cell that includes a planar body having a first surface, a second surface. More than one header opening extends between the first surface and the second surface to define a flowpath. At least one open flow field channel with an inlet port and an outlet port is provided in the first surface. Each outlet port is in fluid communication with one of the one header openings. At least one of the outlet port or the inlet port has a baffle extending into the flow path.08-21-2008
20090269642ION CONDUCTING POLYMER MEMBRANES - Modified ion-conducting membranes (10-29-2009
20090087713Membrane catalyst layer assembly with reinforcing films, membrane electrode assembly with reinforcing files, and polymer electrolyte fuel cells - A membrane-catalyst layer assembly with reinforcing films including a solid polymer electrolyte membrane 04-02-2009
20090092879Fuel Cells with Sputter Deposited Pt and Pt Alloy Electrodes - The present application is directed to a fabrication method to reduce Pt loading in fuel cells through the use of thin film electrodes by increasing Pt utilization and the use of more active Pt alloys that can be easily and inexpensively fabricated by sputter deposition. Pt and Pt alloy thin films were sputter deposited onto carbon/Nafion® decals and subsequently hot pressed with the catalyst thin film towards the membrane. The results show improved mass performance and catalyst utilization with Pt thin films and increased mass activities can be achieved with PtCo (76:24 atomic ratio) and PtCr (80:20 atomic ratio) as compared to pure Pt. Mass activity improvements of 14 mV and 8 mV were observed for the PtCo and PtCr alloys with respect to a pure Pt film with similar mass loading under 300/350 kPa hydrogen/oxygen operation.04-09-2009
20100040926CONSOLIDATED FUEL CELL ELECTRODE - This disclosure related to polymer electrolyte member fuel cells and components thereof, including fuel cell electrodes.02-18-2010
20090169951MANUFACTURING METHODS OF CATALYSTS FOR CARBON FIBER COMPOSITION AND CARBON MATERIAL COMPOUND, MANUFACTURING METHODS OF CARBON FIBER AND CATALYST MATERIAL FOR FUEL CELL, AND CATALYST MATERIAL FOR FUEL CELL - The carbon fibers of this invention is characterized in that irreducible inorganic material particles in a mean primary particle size below 500 nm and reducible inorganic material particles in a mean primary particle size below 500 nm were mixed by pulverizing and then, the mixture was heat treated under the reducing atmosphere and metal particles in a mean particle size below 1 μm were obtained, and the mixed powder of the thus obtained metal particles with the irreducible inorganic material particles are included in the carbon fibers.07-02-2009

Patent applications in class Solid electrolyte

Patent applications in all subclasses Solid electrolyte