| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 429036000 | Having bonded seal, e.g., welded, adhesive, molded in situ, etc. | 29 |
| 20080220312 | Fuel Cell Stack - In order to enable a fuel cell stack to be easily disassembled into a bundle of a plurality of cells and simultaneously to be handled while considering a unit cell as a unit, the fuel cell stack has a unit cell formed of an MEA and two facing separators which sandwich the MEA, and an adhesive layer for sealing a gap between the separators in the unit cell, and gaskets for sealing a gap between the unit cells, wherein each tacking force of the adhesive layer, and each gasket are different from each other depending on the position in a stacked direction of the unit cell. | 09-11-2008 |
| 20080220313 | Seal arrangement comprising a metallic braze for a high-temperature fuel cell stack and a method of manufacturing a fuel cell stack - In order to produce a seal arrangement for a fuel cell stack which comprises a plurality of fuel cell units that succeed one another in a stack direction wherein each of the fuel cell units comprises a housing incorporating at least one housing part consisting of a metallic material such that it exhibits an adequate electrically insulating effect and adequate mechanical rigidity even at a high operating temperature of the fuel cell stack, it is proposed that the seal arrangement comprises at least one housing part of a first fuel cell unit consisting of a metallic material which is provided with a coating of a ceramic material, wherein the housing part of the first fuel cell unit is brazed to a housing part of a second fuel cell unit by means of a metallic braze at least one position that is provided with the ceramic coating. | 09-11-2008 |
| 20080226966 | Fuel Cell Devices, Systems, and Methods - Certain exemplary embodiments comprise devices, systems and methods associated with making and/or using a fabric. The fabric can comprise a hydrophobic coating. The fabric can comprise a microporous sub-layer. Certain exemplary embodiments comprise fuel cells and/or fuel cell structures adapted to utilize the fabric for one or more gas permeable electrically conductive layers. | 09-18-2008 |
| 20080233464 | FUEL CELL MODULE - A fuel cell module includes an anode flow board, a cathode board, an intermediate adhesive layer, a membrane electrode assembly (MEA) including a membrane edge, and a leak-proof adhesive layer mounted on the membrane edge, thereby preventing contact between the intermediate adhesive layer and the membrane edge. The adhesive ability of the leak-proof adhesive layer to the membrane edge is higher than that of the intermediate adhesive layer to the membrane edge. Therefore, the methanol leakage from the membrane can be avoided. | 09-25-2008 |
| 20080241637 | Polymerizable Compositions for Bonding and Sealing Low Surface Energy Substrates for Fuel Cells - 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 reaction products of a polymerizable (meth)acrylate component and a boron-containing initiator. Such a sealant composition is particularly useful where the mating surface of the first electrochemical cell component and/or the mating surface of the second electrochemical cell component is a plastic or plastic-containing substrate. | 10-02-2008 |
| 20080268323 | Sealed Joint Structure for Electrochemical Device - Several members make up a joint in a high-temperature electrochemical device, wherein the various members perform different functions. The joint is useful for joining multiple cells (generally tubular modules) of an electrochemical device to produce a multi-cell segment-in-series stack for a solid oxide fuel cell, for instance. The joint includes sections that bond the joining members to each other; one or more seal sections that provide gas-tightness, and sections providing electrical connection and/or electrical insulation between the various joining members. A suitable joint configuration for an electrochemical device has a metal joint housing, a first porous electrode, a second porous electrode, separated from the first porous electrode by a solid electrolyte, and an insulating member disposed between the metal joint housing and the electrolyte and second electrode. One or more brazes structurally and electrically connects the first electrode to the metal joint housing and forms a gas tight seal between the first electrode and the second electrode. | 10-30-2008 |
| 20080268324 | Seal and Fuel Cell Comprising Same Affixed on the Bipolar Plates - The invention mainly concerns a fuel cell seal ( | 10-30-2008 |
| 20080299443 | STACK FOR FUEL CELL - A fuel cell stack including an electricity generating unit for generating electrical energy by electrochemically reacting a fuel and an oxidizing agent, the electricity generating unit including: a first separator; a second separator; a membrane electrode assembly (MEA) between the first separator and the second separator, each of the first and second separators including a channel on a surface facing the MEA and a manifold in the surface facing the MEA, the manifold communicating with the channel; and a gasket, positioned at an outer circumference portion of an area where the MEA is positioned, for sealing a space between the first and second separators and for covering an open area of a channel extension area of at least one of the first and second separators where the manifold communicates with the channel. | 12-04-2008 |
| 20090004542 | LOW ELECTRICAL RESISTANCE BIPOLAR PLATE-DIFFUSION MEDIA ASSEMBLY - A fuel cell assembly and method of forming the same is disclosed, the fuel cell assembly including a membrane electrode assembly, a plurality of diffusion media, and a plurality of bipolar plates, wherein the diffusion media are adhered to the bipolar plates with an adhesive layer adapted to minimize an electrical resistance within the fuel cell assembly. | 01-01-2009 |
| 20090004543 | MEMBRANE ELECTRODE ASSEMBLIES FOR FUEL CELLS AND METHODS OF MAKING - A sealed unbonded membrane electrode assembly includes a first gas diffusion layer and a second gas diffusion layer each having a peripheral border and an active region a catalyst coated membrane, having an active region, interposed between the first gas diffusion layer and the second gas diffusion layer; and a frame member; wherein the frame member envelops the peripheral border of the first gas diffusion layer and the second gas diffusion layer and is sealed to the catalyst-coated membrane; and wherein the catalyst-coated membrane is unbonded to the first and second gas diffusion layers in the active regions thereof. | 01-01-2009 |
| 20090004544 | Glass seal with ceramic fiber for a solid-oxide fuel cell stack - A glass ceramic composition for sealing adjacent metal cassettes in an SOFC stack. The seal composition comprises an alumina-silicate glass ceramic matrix and a ceramic fiber aggregate dispersed in the matrix. Preferably, the fiber is selected from the group consisting of zirconium oxide fiber, alumina fiber, and combinations thereof. Preferably, the fiber is present at 1-60 weight percent with respect to the weight of glass ceramic, preferably about 30 weight percent. Preferably, the zirconia is stabilized by up to about 10% yttria. Alumina fiber may substitute for a portion of the zirconia fiber. Preferably, a green seal is die cut from a green tape sheet formed by extrusion of a slurry comprising water and a latex binder. The green seal is sintered during the final SOFC stack assembly process to form the final stack seal. | 01-01-2009 |
| 20090011318 | Electrically Conducting Curable Resin Composition, Cured Product Thereof and Molded Article of the Same - There is provided a curable composition which can give a cured product having excellent physical properties and is particularly useful as a material for the separator of a fuel cell such as polymer electrolyte fuel cell. The electrically conducting curable resin composition of the present invention comprises (A) a hydrocarbon compound having a plurality of carbon-carbon double bonds, (B) an elastomer excluding the component (A), and (C) a carbonaceous material. | 01-08-2009 |
| 20090029232 | Fuel cell cover plate tie-down - A pair of reactant cover plates, e.g., fluid manifolds or protective covers ( | 01-29-2009 |
| 20090029233 | Gas Diffusion Unit - A gas diffusion unit ( | 01-29-2009 |
| 20090053581 | SEPARATOR AND FUEL CELL - A separator ( | 02-26-2009 |
| 20090061282 | SEALING MATERIAL FOR SOLID OXIDE FUEL CELLS - A sealing material for solid oxide fuel cells is provided, which is composed of around 60% to 80% by weight of glass, around 20% to 30% by weight of alcohol, around 0.5% to 3% by weight of ethyl celluloid as a binder, and around 0.01% to 0.1% by weight of polyethylene glycol as a plasticizer. | 03-05-2009 |
| 20090068540 | FUEL CELL, FUEL CELL STACK, AND METHOD OF PRODUCING THE FUEL CELL STACK - A fuel cell has a plurality of constituent members that constitute the fuel cell. The constituent members have first positioning portions and a second positioning portion that is provided on an outer peripheral portion, which are used for positioning during stacking. | 03-12-2009 |
| 20090136825 | FUEL CELL ASSEMBLY AND METHOD FOR BONDING A SEPARATOR AND AN ELECTROLYTE LAYER OF A FUEL CELL ASSEMBLY - In a fuel cell assembly ( | 05-28-2009 |
| 20090148749 | SEPARATOR AND SEPARATOR SEAL FOR POLYMER ELECTROLYTE FUEL CELLS - A rubber composition comprising (A) a liquid alkenyl-containing organopolysiloxane with Mw<100,000, (B) a gum-like organopolysiloxane with Mw≧150,000, (C) an organohydrogenpolysiloxane, (D) fumed silica, and (E) an addition reaction catalyst and having a viscosity of 20-200 Pa-s at a shear rate of 10 s | 06-11-2009 |
| 20090148750 | SEPARATOR AND SEPARATOR SEAL FOR POLYMER ELECTROLYTE FUEL CELLS - A rubber composition comprising (A) an alkenyl-containing organopolysiloxane, (B) a silicone resinous copolymer, (C) an organohydrogenpolysiloxane, (D) fumed silica having a BET specific surface area of 50-400 m | 06-11-2009 |
| 20090191447 | Fuel cell unit, composite block of fuel cells and method for manufacturing a composite block of fuel cells - In order to create a fuel cell unit, comprising a cathode-anode-electrolyte unit and a contact plate which is in electrically conductive contact with the cathode-anode-electrolyte unit, which requires only small production resources and is thus suitable for large-scale production it is suggested that the fuel cell unit comprise a fluid guiding element which is connected to the contact plate in a fluid-tight manner, forms a boundary of a fluid chamber having fluid flowing through it during operation of the fuel cell unit and is designed as a shaped sheet metal part. | 07-30-2009 |
| 20090220849 | FUEL CELL SEPARATOR SEALING MATERIAL AND FUEL CELL SEPARATOR - For use in a fuel cell separator comprising a separator substrate, a primer layer, and an elastomeric seal, a sealing material comprises a primer composition containing Si—H groups of which the primer layer is formed, and a liquid addition-curable silicone rubber composition containing alkenyl groups and Si—H groups of which the elastomeric seal is formed. A molar ratio of the total amount of Si—H groups to the total amount of alkenyl groups per unit weight of the primer composition and the silicone rubber composition is in the range: 5.0| 09-03-2009 | |
| 20090239128 | INTERLOCKABLE BEAD SEAL - An interlockable bead seal for a bipolar plate is provided. The interlockable bead seal includes a first elongate bead formed on a first plate and a second elongate bead formed on a second plate. The first elongate bead has a sealing surface and the second elongate bead has a trough. An interlockable bipolar plate having the interlockable bead seals, and a fuel cell stack formed from a plurality of the interlockable bipolar plates, are also provided. A lateral slippage between components of the fuel cell stack is militated against by the interlockable bipolar plates. | 09-24-2009 |
| 20090280391 | PACKAGE STRUCTURE FOR FUEL CELL - Provided is a package structure for a fuel cell, including a first polar plate and a second polar plate. The first polar plate includes a first recess used to accommodate an anode of a membrane electrode assembly (MEA), and at least a first sealed flange surrounding the first recess. The second polar plate includes a second recess corresponding in position to the first recess and used to accommodate a cathode of the MEA, and at least a first sealed groove surrounding the second recess and corresponding in position to the first sealed flange. The first sealed flange and the first sealed groove are employed to hold by clamping the periphery of the proton exchange membrane of the MEA, so as to accomplish sealing. | 11-12-2009 |
| 20100003580 | FUEL CELL - A fuel cell in which protrusion of an adhesive agent into a gas communication path is suppressed. The fuel cell has a gas passage in a power generation region, a manifold in a non power generation region, and the gas communication path interconnecting the gas passage and the manifold. The adhesive agent is used near at least the gas communication path. An adhesive agent accumulation section for suppressing inflow of the adhesive agent into the gas communication path is located near the gas communication path. | 01-07-2010 |
| 20100086829 | Electrochemical Cell Stack - A redox fuel stack cell comprises a plurality of essentially similar half-cell frames of molded polymer; interleaved between them are semi-permeable membranes and bipolar plate electrodes. The frames are rectangular, with margins around central voids. At the voids, they have rebates in abutting faces for locating the plate electrodes. At their corners, they have apertures for forming ducts throughout the stack for flow of electrolyte to and from the cell cavities provided by the voids. The frames have electrolyte flow passages open in their faces abutting the frames and leading towards each other. The passages stop short of each other and are surrounded by grooves containing sealing O-rings. Diagonally opposite one of the passages end at openings passing through the frames. The other passages have no openings in the frames, but the frames have openings through them in register with the ends of the passages. | 04-08-2010 |
| 20100136382 | MECHANICALLY JOINED BIPOLAR PLATES AND METHOD THEREFOR - Exemplary embodiments include a product and a method of a bipolar plate assembly having a pair of plates, the bipolar plate assembly being a part of a fuel cell stack. The pair of plates may be joined together at their respective borders by a mechanical forming process. | 06-03-2010 |
| 429037000 | Having clamping means | 2 |
| 20090117446 | JOINT DEVICE FOR SENDING AND RECEIVING LIQUID AND FUEL CELL SYSTEM HAVING THE SAME - There are disclosed a joint device for sending and receiving a liquid and the like which have a structure preferable in securing alignment precision of connected portions during joining and maintaining fixing of these connected portions. In the joint device for sending and receiving the liquid, which connects a liquid reservoir to store the liquid to a liquid accepter to accept the liquid from the liquid reservoir, disengageable clasps (snap hooks) | 05-07-2009 |
| 20090197149 | Fuel Cell Assembly - A fuel cell assembly comprises a fuel cell stack ( | 08-06-2009 |
