Class / Patent application number | Description | Number of patent applications / Date published |
429481000 | Specified supporting layer | 57 |
20100261089 | MEMBRANE AND ELECTRODE ASSEMBLY AND METHOD OF PRODUCING THE SAME, AND POLYMER ELECTROLYTE MEMBRANE FUEL CELL | 10-14-2010 |
20110091788 | GAS DIFFUSION ELECTRODES COMPRISING FUNCTIONALISED NANOPARTICLES - The invention relates to a gas diffusion electrode for polymer electrolyte fuel cells having a working temperature of up to 250° C., comprising a plurality of gas-permeable electroconductive layers having at least one gas diffusion layer and one catalyst layer. The catalyst layer contains particles of an average particle diameter in the nanometer range, said particles containing ionogenic groups. The invention also relates to the production of said gas diffusion electrode and to the use of same in high-temperature polymer electrolyte membrane fuel cells. | 04-21-2011 |
20110151352 | GAS DIFFUSION LAYER - A carbon-fiber-based gas diffusion layer (GDL) for use in polymer electrolyte membrane (PEM) fuel cells (FC) having structured hydrophilic properties, wherein materials with hydrophilic properties and selected from the group of metal oxides in an average domain size of 0.5 to 80 μm are present as hydrophilic wicks in the gas diffusion layer. | 06-23-2011 |
20110171559 | MEMBRANE ELECTRODE ASSEMBLY AND METHOD FOR MAKING THE SAME - A membrane electrode assembly includes a proton exchange membrane; and a first electrode and a second electrode located on opposite sides of the proton exchange membrane; each electrode comprising a catalyst layer and a gas diffusion layer; the catalyst layer is located between the gas diffusion layer and the proton exchange membrane; and the gas diffusion layer comprising a carbon nanotube film structure, the carbon nanotube film structure comprising at least one carbon nanotube layer, the carbon nanotube layer comprising a plurality of carbon nanotubes oriented along a same direction. A method of making the same is also related. | 07-14-2011 |
20110177424 | ELECTROLYTE-ELECTRODE JOINED ASSEMBLY AND METHOD FOR PRODUCING THE SAME - In an electrolyte-electrode joined assembly (MEA), a cathode is formed on an intermediate layer stacked on a solid electrolyte. The cathode is a laminate containing at least a first layer facing the intermediate layer and a second layer disposed on the first layer. The first layer contains a perovskite-type composite oxide represented by Ba | 07-21-2011 |
20110183232 | STRUCTURES FOR GAS DIFFUSION ELECTRODES - A gas diffusion electrode comprises at least one gas diffusion media, at least one supported catalyst layer disposed on top of the gas diffusion media, the supported catalyst layer comprising at least one supported catalyst, and an unsupported catalyst layer disposed on top of the supported catalyst layer, the unsupported catalyst layer having a higher total catalyst loading than the supported catalyst layer. | 07-28-2011 |
20110244360 | ELECTROLYTIC MEMBRANE STRUCTURE FOR FUEL CELL AND FUEL CELL - A catalyst layer | 10-06-2011 |
20110294034 | Direct Methanol Fuel Cell - According to one embodiment, a direct methanol fuel cell includes an anode to which an aqueous methanol solution is supplied as the fuel, a cathode to which oxidizing gas is supplied, an electrolyte membrane interposed between the anode and the cathode, a first separator disposed on the surface of the anode on the side opposite to the electrolyte membrane side and a second separator disposed on the surface of the cathode on the side opposite to the electrolyte membrane side, wherein the first and second separators are respectively made of a membrane containing a copolymer of a first vinyl monomer having a cyclic functional group bonded with a carbonyl group, a second vinyl monomer having a carboxyl group and a third vinyl monomer having an aromatic group, and a carbon powder dispersed in the copolymer. | 12-01-2011 |
20110318667 | INTEGRATED FUEL CELL ASSEMBLY AND METHOD OF MAKING - An integrated fuel cell assembly is described. The integrated fuel cell assembly includes a polymer membrane; an anode electrode and a cathode electrode on opposite sides of the polymer membrane; a pair of gas diffusion media on opposite sides of the polymer membrane, the gas diffusion media comprising a microporous layer and a gas diffusion layer, the anode electrode and the cathode electrode positioned between the polymer membrane and the pair of gas diffusion media; a subgasket positioned around a perimeter of one of the gas diffusion media, the subgasket defining an active area inside the perimeter, the subgasket having a layer of thermally activated adhesive thereon; and a bipolar plate sealed to the subgasket by the layer of thermally activated adhesive. Methods of making the integrated fuel cell assembly and assembling fuel cell stacks are also described. | 12-29-2011 |
20110318668 | MEMBRANE-ELECTRODE ASSEMBLY FOR FUEL CELL, FUEL CELL AND MANUFACTURING THE METHOD THEREOF - Disclosed herein are a membrane-electrode assembly for a fuel cell, a fuel cell, and a manufacturing method thereof. The present invention forms a micro current collecting layer between a gas diffusion layer and a micro porous layer and surface-contacts a pair of laminates for an electrode so that each electrolyte layer formed by applying an electrolyte solution thereon contacts with each other, thereby shortening a moving distance of electrons to minimize the current collecting resistance and loss and reduce the interface resistance. | 12-29-2011 |
20120064432 | SOLID OXIDE FUEL CELL - Disclosed herein is a solid oxide fuel cell. A solid oxide fuel cell | 03-15-2012 |
20120088180 | MEMBRANE ELECTRODE ASSEMBLY, SOLID OXIDE FUEL CELL COMPRISING THE SAME AND METHOD OF PREPARING THE MEMBRANE ELECTRODE ASSEMBLY - A membrane electrode assembly including an anode that incorporates a porous support and a hydrogen permeable metal thin film disposed on the porous support; a cathode; and a proton conductive solid oxide electrolyte membrane disposed between the anode and the cathode. | 04-12-2012 |
20120100456 | POROUS ELECTRODE SUBSTRATE AND METHOD FOR PRODUCING THE SAME - The present invention provides a porous electrode substrate that has low production cost, high mechanical strength, thickness precision, and surface smoothness, and sufficient gas permeability and electrical conductivity, and a method for producing the same. In the present invention, for example, a porous electrode substrate that includes short carbon fibers (A) joined together via three-dimensional mesh-like carbon fibers (B) is produced by a method including a step (1) of dispersing short carbon fibers (A), and short carbon fiber precursors (b) to be fibrillated by beating, to produce a precursor sheet; and a step (2) of subjecting the precursor sheet to carbonization treatment at a temperature of 1000° C. or higher. | 04-26-2012 |
20120122013 | MEMBRANE ELECTRODE UNITS AND FUEL CELLS WITH AN INCREASED SERVICE LIFE - A membrane-electrode unit includes two diffusion layers, each layer being in contact with a catalyst layer and the layers separated by a polymer electrolyte membrane. A polymer frame contacts at least one of the two surfaces of the membrane. The frame includes an inner region on at least one surface of the membrane and an outer region outside the diffusion layer. The thickness of the outer region is between 50 and 100% of the thickness of the inner region. The thickness of the outer region is reduced by a maximum 2% at a temperature of 80° C. and a pressure of 10 N/mm over a period of 5 hours, the reduction being determined after a first compression process, carried out at a pressure of 10 N/mm for 1 minute. | 05-17-2012 |
20120148935 | MANUFACTURING METHOD OF MEMBRANE-ELECTRODE ASSEMBLY FOR POLYMER ELECTROLYTE MEMBRANE FUEL CELL - The present invention provides a method of fabricating a membrane-electrode assembly for a polymer electrolyte membrane fuel cell, and a membrane-electrode assembly and a polymer electrolyte membrane fuel cell formed thereby. In the method, a 3-layered membrane-electrode assembly is formed in which a catalyst electrode layer is disposed on both surfaces of a polymer electrolyte membrane. A sub-gasket having an opening therein and having a primer layer formed on one surface thereof is formed, and is attached on both surfaces of the 3-layered membrane-electrode assembly such that the surface of the sub-gasket having the primer layer formed thereon faces the outside (is exposed) and the catalyst electrode layer is exposed through the opening. A 7-layered membrane-electrode assembly is then formed by stacking a gas diffusion layer on the primer layer exposed on both surfaces of the 5-layered membrane-electrode assembly to cover the catalyst electrode layer, and then performing a hot-pressing process to attach the sub-gasket and the gas diffusion layer to each other via the primer layer. | 06-14-2012 |
20120171595 | POWER GENERATION CELL FOR SOLID ELECTROLYTE FUEL CELL AND STRUCTURE OF FUEL ELECTRODE THEREOF - Provided is 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 is of a power generation cell for a solid electrolyte fuel cell in which particles ( | 07-05-2012 |
20120183880 | RIGID NEGATIVE COMPARTMENT FOR A METAL-AIR BATTERY AND METHOD OF MANUFACTURING SAID COMPARTMENT - The present invention relates to a precursor of a negative electrode compartment for rechargeable metal-air batteries, comprising a rigid casing ( | 07-19-2012 |
20120189942 | ELECTRODE ASSEMBLY WITH INTEGRATED REINFORCEMENT LAYER - An electrode assembly and a method of making an electrode assembly. One embodiment of the method includes coating an ionomer solution onto a catalyst coated diffusion media to form a wet ionomer layer, and applying a porous reinforcement layer to the wet ionomer layer such that the wet ionomer layer at least partially impregnates the reinforcement layer. Drying the wet ionomer layer with the impregnated reinforcement layer and joining it to the catalyst coated diffusion media forms an assembly that includes an integrally-reinforced proton exchange membrane layer. This layer may be additionally joined to other ionomer layers and other catalyst coated diffusion media such that a membrane electrode assembly is formed. | 07-26-2012 |
20120225368 | SOLID OXIDE FUEL CELL - Provided is a solid oxide fuel cell (SOFC), including: a fuel electrode for allowing a fuel gas to be reacted; an air electrode for allowing a gas containing oxygen to be reacted; an electrolyte film provided between the fuel electrode and the air electrode; and a reaction prevention film provided between the air electrode and the electrolyte film. The reaction prevention film includes two layers including one layer of a porous layer having an interface with the electrolyte film; and one layer of a dense layer having an interface with the air electrode. The dense layer has a porosity of 5% or less and the porous layer has a porosity of 5.1 to 60%. The porous layer includes closed pores each having a diameter of 0.1 to 3 μm. The porous layer includes closed pores each including a component (such as Sr) for the air electrode. | 09-06-2012 |
20120301809 | MEMBRANE ELECTRODE ASSEMBLY FOR POLYMER ELECTROLYTE FUEL CELL AND POLYMER ELECTROLYTE FUEL CELL - Provided is a membrane electrode assembly for a polymer electrolyte fuel cell which is hard to be unstable in electric power generation even though a change in power generation surroundings, or a change in the humidity conditions in the vicinity of the electrodes occurs, has high initial performance, and suppresses the performance deterioration in a long-term use. The membrane electrode assembly for a polymer electrolyte fuel cell ( | 11-29-2012 |
20120315567 | MEMBRANE ELECTRODE ASSEMBLY FOR FUEL CELL AND FUEL CELL USING THE SAME - Disclosed is a membrane electrode assembly for a fuel cell including an anode, a cathode, and an electrolyte membrane disposed therebetween. The anode includes an anode catalyst layer laminated on one principal surface of the electrolyte membrane, and an anode diffusion layer laminated on the anode catalyst layer. The cathode includes a cathode catalyst layer laminated on the other principal surface of the electrolyte membrane, and a cathode diffusion layer laminated on the cathode catalyst layer. At least one of the anode and cathode diffusion layers includes a conductive porous substrate, a porous composite layer laminated on the conductive porous substrate at the catalyst layer side, and a modified layer disposed on the porous composite layer at the catalyst layer side. The porous composite layer includes a conductive carbon material, and a first water-repellent resin material. The modified layer includes a second water-repellent resin material having a needle-like shape. | 12-13-2012 |
20120321989 | MEMBRANE/ELECTRODE ASSEMBLY FOR POLYMER ELECTROLYTE FUEL CELL AND PROCESS FOR PRODUCING CATHODE FOR POLYMER ELECTROLYTE FUEL CELL - To provide a membrane/electrode assembly for polymer electrolyte fuel cells, capable of achieving high-power generation performance under low or no humidity operation conditions, and a process for producing a cathode for polymer electrolyte fuel cells. | 12-20-2012 |
20130022891 | BILAYER CATHODE CATALYST STRUCTURE FOR SOLID POLYMER ELECTROLYTE FUEL CELL - Use of noble metal alloy catalysts, such as PtCo, as the cathode catalyst in solid polymer electrolyte fuel cells can provide enhanced performance at low current densities over that obtained from the noble metal itself. Unfortunately, the performance at high current densities has been relatively poor. However, using a specific bilayer cathode construction, in which a noble metal/non-noble metal alloy layer is located adjacent the cathode gas diffusion layer and a noble metal layer is located adjacent the membrane electrolyte, can provide superior performance at all current densities. | 01-24-2013 |
20130108942 | FUEL CELL | 05-02-2013 |
20130122394 | METHOD OF FABRICATING MEMBRANE ELECTRODE ASSEMBLY AND GAS DIFFUSION LAYER - A method of fabricating a membrane electrode assembly, comprising: obtaining a mixture by mixing and kneading electrically conductive particles, a polymer resin, a surfactant, and a dispersion solvent (S | 05-16-2013 |
20130130149 | FUEL CELL DEVICE AND SYSTEM - Fuel cell devices and systems are provided. In certain embodiments, the devices include a ceramic support structure having a length, a width, and a thickness. A reaction zone positioned along a portion of the length is configured to be heated to an operating reaction temperature, and has at least one active layer therein comprising an electrolyte separating first and second opposing electrodes, and active first and second gas passages adjacent the respective first and second electrodes. At least one cold zone positioned from the first end along another portion of the length is configured to remain below the operating reaction temperature. An artery flow passage extends from the first end along the length through the cold zone and into the reaction zone and is fluidicly coupled to the active first gas passage, which extends from the artery flow passage toward at least one side. The thickness of the artery flow passage is greater than the thickness of the active first gas passage. In other embodiments, fuel cell devices include an electrolyte having at least a portion thereof comprising a ceramic material sintered from a nano-sized powder. In yet other embodiments, cold zones are provided at each end of the device with the reaction zone therebetween having at least two discrete power sections, each having one or more active layers, the power sections fed by discrete fuel passages to provide a device and system capable of operating at more than one power level. | 05-23-2013 |
20130157166 | BIPOLAR PLATE AND FUEL CELL - A bipolar plate and a fuel cell are provided. The bipolar plate for the fuel cell has a plurality of flow channels, and a rib is defined between neighboring two flow channels. A top surface of the rib may be a roughened surface or have a porous structure in order to improve performance of the fuel cell. | 06-20-2013 |
20130183605 | FUEL CELL MEMBRANE ELECTRODE ASSEMBLY - A resin frame equipped membrane electrode assembly includes a membrane electrode assembly and a resin frame member. The membrane electrode assembly includes a solid polymer electrolyte membrane and an anode, and a cathode sandwiching the solid polymer electrolyte membrane. The resin frame member is formed around the solid polymer electrolyte membrane. The outer end of an electrode catalyst layer of the cathode protrudes beyond the outer end of a gas diffusion layer, and the resin frame member includes an inner extension protruding toward the outer periphery of the cathode to contact the outer end of the solid polymer electrolyte membrane. The inner extension of the resin frame member has an overlapped portion overlapped with the outer end of the electrode catalyst layer. | 07-18-2013 |
20130216932 | Manufacturing of Fuel Cell Membrane Electrode Assemblies Incorporating Photocurable Cationic Crosslinkable Resin Gasket - A first transport system moves a web comprising a subgasketed CCM layer and an application system applies a crosslinkable resin to at least a subgasketed portion of the subgasketed CCM layer. The crosslinkable resin preferably comprises a photocurable cationic crosslinkable resin. A first curing apparatus subjects an exposed surface of the crosslinkable resin to a photo curing process to initiate curing of the crosslinkable resin. A second transport system moves a GDL into adhering contact with a partially cured exposed surface of the crosslinkable resin of the CCM layer so as to form an MEA layer. A second curing apparatus subjects the GDL, partially cured crosslinkable resin, and CCM layer structure to a thermal curing process to substantially complete curing of the crosslinkable resin. A converting system is configured to receive the MEA layer and produce a plurality of discrete MEAs from the MEA layer. | 08-22-2013 |
20130295483 | METHOD FOR PRODUCING FUEL CELL ELECTRODE CATALYST, FUEL CELL ELECTRODE CATALYST, AND USES THEREOF - A method for producing a fuel cell electrode catalyst including a metal element selected from aluminum, chromium, manganese, iron, cobalt, nickel, copper, strontium, yttrium, tin, tungsten, and cerium and having high catalytic activity through heat treatment at comparatively low temperature. The method including: a step (1) of mixing at least a certain metal compound (1), a nitrogen-containing organic compound (2), and a solvent to obtain a catalyst precursor solution, a step (2) of removing the solvent from the catalyst precursor solution, and a step (3) of heat-treating a solid residue, obtained in the step (2), at a temperature of 500 to 1100° C. to obtain an electrode catalyst; a portion or the entirety of the metal compound (1) being a compound containing, as the metal element, a metal element M1 selected from aluminum, chromium, manganese, iron, cobalt, nickel, copper, strontium, yttrium, tin, tungsten, and cerium. | 11-07-2013 |
20130302714 | POROUS ELECTRODE SUBSTRATE, METHOD FOR MANUFACTURING SAME, MEMBRANE ELECTRODE ASSEMBLY, POLYMER ELECTROLYTE FUEL CELL, PRECURSOR SHEET, AND FIBRILLAR FIBERS - Provided is a porous electrode substrate having excellent thickness precision, gas permeability and conductivity, handling efficiency, low production costs and a high carbonization rate during carbonization. Also provided are a method for manufacturing such a substrate, a precursor sheet and fibrillar fiber used for forming such a substrate, along with a membrane electrode assembly and a polymer electrolyte fuel cell that contain such a substrate. The method for manufacturing a porous electrode substrate includes step (1) for manufacturing a precursor sheet in which short carbon fibers (A) and carbon fiber precursor (b) are dispersed, and step (2) for carbonizing the precursor sheet, and the volume contraction rate of carbon fiber precursor (b) in step (2) is 83% or lower. The present invention also relates to a porous electrode substrate obtained by such a manufacturing method, a precursor sheet and fibrillar fiber used for forming the substrate, along with a membrane electrode assembly and a polymer electrolyte fuel cell containing the substrate. | 11-14-2013 |
20140004442 | FUEL CELL MEMBRANE ELECTRODE ASSEMBLY | 01-02-2014 |
20140011111 | MEMBRANE ELECTRODE ASSEMBLY FOR FUEL CELL - A membrane electrode assembly for a fuel cell includes a membrane electrode assembly and a resin frame member. The membrane electrode assembly includes a solid polymer electrolyte membrane, a first electrode, and a second electrode. The first electrode includes a first catalyst layer and a first gas diffusion layer. The second electrode includes a second catalyst layer and a second gas diffusion layer. The resin frame member includes an outer peripheral portion and an inner peripheral projection. A first space includes a gap between an outer peripheral end face of the second gas diffusion layer and an inner-side end face of the inner peripheral projection. A second space includes a gap between an outer peripheral end face of the first gas diffusion layer and an inner-side wall face of the outer peripheral portion. The first space has a dimension different from a dimension of the second space. | 01-09-2014 |
20140017590 | ELECTROLYTE MEMBRANE-ELECTRODE ASSEMBLY FOR FUEL CELLS, AND METHOD FOR PRODUCING SAME - An electrolyte membrane-electrode assembly is provided with: a solid polymer electrolyte membrane; and an anode-side electrode and a cathode-side electrode that sandwich the solid polymer electrolyte membrane. The cathode-side electrode has smaller planar dimensions than the anode-side electrode. In the electrolyte membrane-electrode assembly, a resin frame member is provided around the outer periphery of the solid polymer electrolyte membrane. The resin frame member is bonded to the cathode-side electrode by having only the outer peripheral portion of the cathode-side electrode being impregnated with the inner peripheral portion of the resin frame member. | 01-16-2014 |
20140045092 | ELECTROLYTIC MEMBRANE STRUCTURE FOR FUEL CELL AND FUEL CELL - A catalyst layer | 02-13-2014 |
20140051006 | METAL SUPPORTED SOLID OXIDE FUEL CELL AND METHOD FOR MANUFACTURING THE SAME - Metal supported solid oxide fuel cells produced by high voltage medium current tri-gas atmospheric plasma spraying are revealed. These fuel cells have better electrical properties, better redox stability, better durability and higher thermal conductivity due to the metal support. Moreover, nano structure of an anode interlayer and nano structure of a cathode interlayer have more three-phase boundaries (TPB) so that performance of the solid oxide fuel cell is improved and the working temperature of the solid oxide fuel cell is reduced. The shape of the solid oxide fuel cell is planar or tubular. | 02-20-2014 |
20140234749 | ELECTROLYTE MEMBRANE-ELECTRODE STRUCTURE WITH RESIN FRAME FOR FUEL CELLS - An electrolyte membrane-electrode structure with a resin frame is provided with: an electrolyte membrane-electrode structure that is provided with an anode-side electrode and a cathode-side electrode, with a solid polymer electrolyte membrane being held therebetween; and a resin frame member that is arranged around the outer periphery of the solid polymer electrolyte membrane. An intermediate layer is continuously arranged: between an outer peripheral end portion of the cathode-side electrode and a first inner peripheral end portion of the resin frame member; on an outer peripheral end portion of the solid polymer electrolyte membrane, said outer peripheral end portion being exposed outside the outer peripheral end portion of the cathode-side electrode; and between an outer peripheral end portion of the anode-side electrode and a second inner peripheral end portion of the resin frame member. | 08-21-2014 |
20140287338 | FUEL CELL RESIN FRAME EQUIPPED MEMBRANE ELECTRODE ASSEMBLY - A resin frame member of a resin frame equipped membrane electrode assembly includes a recess where adhesive is provided. An inner protrusion on an inner side of the recess abuts against an electrode catalyst layer protruding outward beyond a gas diffusion layer of a membrane electrode assembly. An outer protrusion on an outer side of the recess abuts against the outermost portion of a gas diffusion layer of the membrane electrode assembly such that a solid polymer electrolyte membrane is interposed between the outer protrusion and the gas diffusion layer. | 09-25-2014 |
20140287339 | FUEL CELL - A fuel cell includes an electrolyte membrane electrode assembly and a resin frame member. The electrolyte membrane electrode assembly includes an electrolyte membrane, a first electrode and a second electrode. The resin frame member has a recess in which the first electrode, the electrolyte membrane, and a portion of a second electrode catalyst layer protruding from a second gas diffusion layer are disposed, and an insertion hole which is in communication with the recess and in which the second gas diffusion layer is inserted. A filling layer covering an outer edge portion of the second electrode catalyst layer and having an oxygen permeability of 2×10 | 09-25-2014 |
20140295315 | MEMBRANE ELECTRODE ASSEMBLY - A membrane electrode assembly is prepared by sandwiching an electrolyte membrane between an anode and a cathode. In the anode, a first porous layer is interposed between a first electrode catalyst layer and a first gas diffusion layer. In the cathode, a second porous layer is interposed between a second electrode catalyst layer and a second gas diffusion layer. A first piled body of the first gas diffusion layer and the first porous layer has a percolation pressure higher than that of a second piled body containing the second gas diffusion layer and the second porous layer. The first piled body has a percolation pressure of 25 to 120 kPa, and the second piled body has a percolation pressure of 5 to 25 kPa. | 10-02-2014 |
20140356758 | PRODUCTION METHOD FOR A TUBULAR FUEL CELL HAVING A TWO-LAYER CAP REGION OF THE SUPPORT BODY - The invention relates to a method for producing a tubular fuel cell by means of a pulling-core tool ( | 12-04-2014 |
20150044593 | POLYMER ELECTROLYTE FUEL CELL - To provide a polymer electrolyte fuel cell having a high cell voltage. | 02-12-2015 |
20150079495 | FUEL CELL - A fuel cell includes a membrane electrode assembly including an electrolyte membrane and catalyst layers joined on both sides of the electrolyte membrane and a pair of separators disposed at both sides of the membrane electrode assembly to respectively form gas flow spaces where two types of power generation gases flow. An electrically conductive porous substrate folded in a corrugated shape is disposed in at least one of the gas flow spaces defined on both sides of the membrane electrode assembly, and a gas flow space in which the electrically conductive porous substrate is disposed is divided into a plurality of gas flow paths substantially parallel to a flow direction of the power generation gases. | 03-19-2015 |
20150086901 | POROUS ELECTRODE BASE MATERIAL, METHOD FOR MANUFACTURING SAME, AND PRECURSOR SHEET - The present invention relates to a method for manufacturing a porous electrode base material including the following steps [1] to [3]: [1] a step for dispersing short carbon fibers (A) to form a sheet-form product; [2] a step for adding, to the sheet-form product, at least one phenolic resin (c) selected from a group consisting of a water soluble phenolic resin and a water dispersible phenolic resin along with carbon powder (d) to form a precursor sheet; and [3] a step for carbonizing the precursor sheet at the temperature of 1000° C. or higher, after the step [2]. | 03-26-2015 |
20150099208 | RESIN-FRAMED MEMBRANE ELECTRODE ASSEMBLY FOR FUEL CELL - A resin-framed membrane electrode assembly for a fuel cell includes a stepped membrane electrode assembly and a resin frame member. The stepped membrane electrode assembly includes a solid polymer electrolyte membrane, an anode electrode, and a cathode electrode. The resin frame member surrounds an outer periphery of the solid polymer electrolyte membrane and includes an inner protruding portion that protrudes from an inner peripheral base portion toward the cathode electrode and that has a thickness. The inner protruding portion has an adhesive application portion to which an adhesive is applied so as to surround a part of the inner protruding portion. The part is in contact with the stepped membrane electrode assembly. A thickness of a cathode diffusion layer is larger than a thickness of an anode diffusion layer. | 04-09-2015 |
20150118595 | GAS DIFFUSION LAYER WITH FLOWPATHS - A gas diffusion layer with flowpaths in which electroconductive wires form flow channels disposed upon an electroconductive substrate, the flow channels formed by the electroconductive wires having a height of 300 μm or less, and flow channels formed by adjacent electroconductive wires having an equivalent diameter of 300 μm or less. | 04-30-2015 |
20150118596 | GAS DIFFUSION ELECTRODE MEDIUM FOR FUEL CELL - A gas diffusion electrode medium is for a fuel cell, has a low in-plane gas permeability and favorable water drainage characteristics in addition to high conductivity, and is able to exhibit high cell performance across a wide temperature range from low temperatures to high temperatures. The gas diffusion electrode medium is characterized by a microporous region being disposed at least at one surface of an electrode substrate, and the microporous region containing flake graphite having an aspect ratio of 50-5000. | 04-30-2015 |
20150140470 | MICROPOROUS LAYER WITH HYDROPHILIC ADDITIVES - A microporous layer for use in a fuel cell includes a first carbon black having carboxyl groups at a concentration less than 0.1 mmol per gram of carbon, a hydrophobic additive and a hydrophilic additive. A method for producing a membrane electrode assembly includes preparing a microporous layer ink, applying the microporous layer ink to a first side of a gas diffusion substrate, sintering the gas diffusion substrate to form a gas diffusion layer having a first side with a microporous layer, and thermally bonding the first side of the gas diffusion layer to an electrode layer. The microporous layer ink includes a suspension medium, a first carbon black having carboxyl groups at a concentration less than 0.1 mmol per gram of carbon, a hydrophobic additive and a hydrophilic additive. | 05-21-2015 |
20150147675 | LAMINATE BODY AND METHOD FOR MANUFACTURING SAME - An object of the present invention is to provide a laminate having food adhesion between a support and a conductive layer. The laminate of the present invention comprises a conductive layer A formed on a support, the conductive layer A containing a conductive carbon material and a polymer, the polymer in the conductive layer A being dense at the surface in contact with the support. | 05-28-2015 |
20150340707 | CARBON NANOWALL AND PRODUCTION METHOD THEREOF, OXYGEN REDUCTION CATALYST, OXYGEN REDUCTION ELECTRODE AND FUEL CELL - The disclosure relates to an oxygen reduction catalyst, an oxygen reduction electrode, and a fuel cell each of which has a carbon nanowall doped with nitrogen. According to the disclosure, the oxygen reduction catalyst, the oxygen reduction electrode and the fuel cell can be provided at low cost. | 11-26-2015 |
20150354069 | ARRANGEMENT OF FLOW STRUCTURES FOR USE IN HIGH DIFFERENTIAL PRESSURE ELECTROCHEMICAL CELLS - The present disclosure is directed towards the design and arrangement of flow structures in electrochemical cells for use in high differential pressure operations. The flow structure on the low pressure-side of the cell has a larger surface area than the flow structure on the high-pressure side of the cell at the flow structure-MEA interface. The boundary of the high pressure flow structure is entirely within the boundary of the low pressure flow structure. A seal around the high pressure flow structure is also contained within the boundary of the low pressure flow structure. In such an arrangement, high fluid pressures acting on the electrolyte membrane from the high-pressure side of the cell is fully and continuously balanced by the flow structure on the low pressure-side of the membrane. Use of the low pressure flow structure as a membrane support prevents the rupture or deformation of the membrane under high stresses. | 12-10-2015 |
20150380746 | FUEL CELL AND METHOD OF PRODUCING THE FUEL CELL - A frame equipped membrane electrode assembly is formed by joining a membrane electrode assembly (MEA) having different sizes of components together with a resin frame member. A frame shaped adhesive sheet is provided between an inner extension of the resin frame member and an outer marginal portion of the MEA. An inner marginal portion of the adhesive sheet includes an overlapped portion, which overlaps in an electrode thickness direction with the surface of an outer marginal portion of a second gas diffusion layer. | 12-31-2015 |
20160056480 | POROUS LAYER AND MANUFACTURING METHOD OF THE SAME (AS AMENDED) - A manufacturing method of porous layer comprises: drying a mixed solution containing conductive carbon powder and water-repellent resin powder by a spray-drying method, so as to produce a powdery substance including the conductive carbon powder coated with the water-repellent resin powder; and producing the porous layer from the powdery substance. Water-vapor permeability of the porous layer measured in conformity with the Japanese Industrial Standard ES-Z-0208 is 10000 to 25000 g/m | 02-25-2016 |
20160087300 | STACKLESS FUEL CELL - A fuel cell includes a catalyst coated membrane with a proton exchange membrane, a cathode layer disposed on a first surface of the proton exchange membrane, and an anode layer disposed on an oppositely disposed second surface of the proton exchange membrane. At least one gas diffusion layer is bonded to at least one of the cathode and anode layers of the catalyst coated membrane. At least one bonding layer substantially surrounds at least one of the catalyst coated membrane and the at least one gas diffusion layer. The at least one bonding layer is bonded to a portion of the proton exchange membrane. At least one circuit is bonded to a portion of the gas diffusion layer and a portion of the at least one bonding layer. | 03-24-2016 |
20160104905 | Water-Repellent Layer and Fuel Cell - A water-repellent layer for fuel cell contains a water-repellent material and a hydrogen peroxide decomposition catalyst. A mass ratio of the hydrogen peroxide decomposition catalyst to the water-repellent material is between 5 mass percent and 20 mass percent, inclusive. | 04-14-2016 |
20160164129 | ELECTRODE FOR FUEL CELLS - The present invention is to provide a high-performance electrode for fuel cells. Disclosed is an electrode for polymer electrolyte fuel cells, comprising a polymer electrolyte material and a metal catalyst carried on carbon, wherein the polymer electrolyte material is an electrolyte material represented by the following general formula: | 06-09-2016 |
20190148739 | POROUS BASE MATERIAL, POROUS ELECTRODE, CARBON FIBER PAPER, METHOD FOR MANUFACTURING CARBON FIBER PAPER, AND METHOD FOR MANUFACTURING POROUS BASE MATERIAL | 05-16-2019 |