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| Number | Title | Issue Date |
| 6479182 | Fuel cell electrode assembly with selective catalyst loading A membrane electrode assembly is provided. More particularly, an assembly is provided which includes a pair of electrodes and an ion exchange membrane having opposed major surfaces positioned between the electrodes, at least one of the electrodes being fo... | 11/12/2002 |
| 6475656 | Membrane-electrode unit with an integrated wear ring, and method of making the same A membrane-electrode unit (1) with integrated sealing edge for a polymer electrolyte membrane fuel cell having a polymer electrolyte membrane (2), an anode (3) arranged on one surface of the membrane and a cathode (4) arranged on the other surface of the ... | 11/05/2002 |
| 6455109 | Electrode for fuel cell and method of producing the same A method of producing an electrode having a high performance in a simple and convenient manner which does not require the use of any of the medium, surfactant and pore-producing agent is disclosed. In the disclosed method, a layer including a catalyst pow... | 09/24/2002 |
| 6432570 | Fuel electrode for solid electrolyte fuel cells and a method of manufacturing the electrode The invention relates to a fuel electrode for high-temperature solid electrolyte fuel cells and a process for manufacture of the electrode. The fuel electrode of the invention is a porous element composed of a high-melting metal, such as ruthenium, osmium... | 08/13/2002 |
| 6432579 | Method of manufacturing secondary battery negative electrode The present invention relates to a process for producing an anode for a secondary battery, which is capable to reduce a contact resistance between a sintered material which contains silicon as an anode active material and a current collector. A binder and... | 08/13/2002 |
| 6428722 | Gas diffusion electrode material, process for producing the same, and process for producing gas diffusion electrode A reaction layer material for a gas diffusion electrode and a production process therefor, which is obtained by mixing a polytetrafluoroethylene dispersion with a surfactant-containing aqueous solution containing hydrophilic fine particles and a hydrophob... | 08/06/2002 |
| 6403245 | Materials and processes for providing fuel cells and active membranes The materials and processes for forming fuel cell electrodes can include substrates of codeposited materials including an electrically conductive material, such as graphite, a polymer film, such as a proton-exchange membrane, and a catalytic material, suc... | 06/11/2002 |
| 6399233 | Technique for rapid cured electrochemical apparatus component fabrication A process for the fabrication of a component or component feature for an electrochemical apparatus including providing a printing medium comprising a rapid curable polymer containing carrier and a powder of a component material precursor, printing one of ... | 06/04/2002 |
| 6383678 | Separator for fuel cell and a method for producing the separator A separator for an electrochemical fuel cell provides a path for a fuel gas or an oxidative gas to an electrode and functions as a wall of a unit cell of the electrochemical fuel cell. The separator comprises a conductive metal plate, a conductive coating... | 05/07/2002 |
| 6383556 | Method for forming a membrane electrode diffusion assembly for use in an ion exchange membrane fuel cell A method for forming a membrane electrode diffusion assembly for use in an ion exchange membrane fuel cell is described and which includes, providing an ion conducting electrolyte membrane having opposite sides; and applying a first diffusion layer to one... | 05/07/2002 |
| 6383675 | Lanthanum nickel compound/metal mixture as a third electrode in a metal-air battery In one embodiment, the present invention relates to a third electrode for use in a metal-air tricell comprising a support structure coated with a layer of a lanthanum nickel compound and at least one metal mixture, wherein the mixture is adhered to the su... | 05/07/2002 |
| 6365292 | Cathode belt structure for use in a metal-air fuel cell battery system and method of fabricating the same In an air-metal fuel cell battery (FCB) system, wherein metal-fuel tape, the ionically-conductive medium and the cathode structures are transported at substantially the same velocity at the locus of points at which the ionically-conductive medium contacts... | 04/02/2002 |
| 6361821 | Method of treating an exhaust sensor and a product thereof The sensor is formed by disposing an electrolyte between and in intimate contact with a first electrode on the one side and a second electrode on the other side to form an assembly, heating the assembly, treating the assembly with an alkaline solution and... | 03/26/2002 |
| 6352742 | Method for producing polymer electrolyte membrane and fuel cell A method for producing a polymer electrolyte membrane is disclosed. A liquid medium is introduced into a cylinder having an inner surface having a cylindrical configuration. The liquid medium has at least one percent by weight of a polymer electrolyte and... | 03/05/2002 |
| 6344428 | Method of forming catalyst layer for fuel cell A method for preparing a slurry for forming a catalyst layer of a PEM fuel cell electrode and a method for fabricating the PEM fuel cell produced thereby are provided. The method for preparing a slurry for forming a catalyst layer of a proton exchange mem... | 02/05/2002 |
| 6326097 | Micro-fuel cell power devices Coupling miniature liquid fueled fuel cells with portable electrical devices, with or without rechargeable batteries, lead to new appliance configurations: charging holster, piggyback charger, fuel cell integral with rechargeable battery, fuel cell with v... | 12/04/2001 |
| 6291094 | Separator for fuel cell, fuel cell incorporating the same, and method of production of the same An inexpensive and corrosion resistant metal-made gas separator includes a base formed by joining formed stainless steel base sheets face to face. The base carries on each of opposite surfaces thereof a first coating layer formed by plating with tin. The ... | 09/18/2001 |
| 6277447 | Direct deposit of catalyst on the membrane of direct feed fuel cells An improved direct liquid-feed fuel cell having a solid membrane electrolyte for electrochemical reactions of an organic fuel. Catalyst utilization and catalyst/membrane interface improvements are disclosed. Specifically, the catalyst layer is applied dir... | 08/21/2001 |
| 6277261 | Method of producing electrolyte units by electrolytic deposition of a catalyst In a method for the manufacture of an electrode-electrolyte unit with a catalytically active layer a metal salt solution is placed layer-like between an electrolyte layer and an electrolyte and the metal in the metal salt solution is precipitated from the... | 08/21/2001 |
| 6261632 | Process for improving the adhesion of metal particles to a carbon substrate The present invention relates to a process for improving the adhesion of metal particles to a carbon substrate, characterized in that, before the said metal particles are deposited on the carbon substrate, the said substrate is treated in an alkaline medi... | 07/17/2001 |
| 6251473 | Preparation of ceramic thin films by spray coating A method for fabrication of solid ceramic thin films in which a porous or dense supporting substrate is spray coated with an oxide powder/solid suspension to form a coated supporting substrate. The coated supporting substrate is then sintered at an elevat... | 06/26/2001 |
| 6207313 | Magnetic composites and methods for improved electrolysis Magnetic composites exhibit distinct flux properties due to gradient interfaces. The composites can be used to improve fuel cells and batteries and effect transport and separation of different chemical species. Devices utilizing the composites include an ... | 03/27/2001 |
| 6207311 | Solid oxide fuel cell operable over wide temperature range Solid oxide fuel cells having improved low-temperature operation are disclosed. In one embodiment, an interfacial layer of terbia-stabilized zirconia is located between the air electrode and electrolyte of the solid oxide fuel cell. The interfacial layer ... | 03/27/2001 |
| 6203936 | Lightweight metal bipolar plates and methods for making the same Thin, light weight bipolar plates for use in electrochemical cells are rapidly, and inexpensively manufactured in mass production by die casting, stamping or other well known methods for fabricating magnesium or aluminum parts. The use of a light metal, s... | 03/20/2001 |
| 6197365 | Process for manufacturing a catalytic material A method for manufacturing a catalytic converter includes spraying a suspension comprising a solvent and a catalyst material comprising carrier particles coated with a catalytically active material onto a substrate having a temperature above the boiling p... | 03/06/2001 |
| 6159533 | Method of depositing a catalyst on a fuel cell electrode Fuel cell electrodes comprising a minimal load of catalyst having maximum catalytic activity and a method of forming such fuel cell electrodes. The method comprises vaporizing a catalyst, preferably platinum, in a vacuum to form a catalyst vapor. A cataly... | 12/12/2000 |
| 6156449 | Catalyst layer for polymer electrolyte fuel cells A catalyst layer on a substrate material which contains a proton-conducting polymer (ionomer), electrically conductive carbon particles and fine particles of at least one precious metal. The catalyst layer is obtainable by coating the substrate material w... | 12/05/2000 |
| 6153257 | Process for preparing a cathode containing alkaline earth metal oxides for molten carbonate fuel cells The present invention relates to a cathode, which can be used in molten carbonate fuel cells (hereinafter, referred to as an "MCFC"), and a process for preparing the same. In such a cathode, NiO, which is inexpensive and has relatively good electrochemica... | 11/28/2000 |
| 6150048 | Metallic interconnection material for solid oxide fuel cell and method for preparing the same Disclosed are a metallic interconnection material for solid oxide fuel cells and a preparation method thereof. The metallic interconnection material has two fine microstructural phases in which 5-25% by volume of LaCrO3 is dispersed at the grai... | 11/21/2000 |
| 6090500 | Oxide ion mixed conductive substance and uses thereof An oxide ion mixed conductive substance has the formula of A1-x Cax Ga1-y By oxide, wherein A is at least one lanthanoid element having a trivalent octacoordinated ion radius of 1.05 to 1.15 Å, B is at least on... | 07/18/2000 |
| 6074692 | Method of making MEA for PEM/SPE fuel cell A method of making a membrane-electrode-assembly (MEA) for a PEM/SPE fuel cell comprising applying a slurry of electrode-forming material directly onto a membrane-electrolyte film. The slurry comprises a liquid vehicle carrying catalyst particles and a bi... | 06/13/2000 |
| 6071635 | Easily-formable fuel cell assembly fluid flow plate having conductivity and increased non-conductive material A fluid flow plate is preferably formed with conductive member(s) and non-conductive material(s). The conductive member(s) and/or the non-conductive material(s) form portion(s) of land(s) and/or flow channel(s) on face(s) of the plate. The flow channel(s)... | 06/06/2000 |
| 6069107 | Recharge catalyst with thin film carbon coating, metal-air electrode including said catalyst and methods for making said catalyst and electrode A catalyst composition for use in a rechargeable metal-air electrochemical cell comprises an oxygen evolution catalyst coated with a thin film deposition of carbon. This catalyst is useful to make an air electrode which produces more power in a metal-air ... | 05/30/2000 |
| 6066364 | Method of producing a layer on a porous substrate In a method of producing a layer on a porous substrate, a suspension including coarse solids of such a size that they clog the pores of the substrate and fine solids which are not larger than 1/5 of the coarse solids is poured onto the porous substrate an... | 05/23/2000 |
| 6060187 | Solid polymer type fuel cell and method for manufacturing the same An electrode of solid polymer electrolyte fuel cells is produced by a step of preparing a mixed liquid containing an organic solvent, a noble metal catalyst-supporting carbon powder and a colloid of a solid polymer electrolyte having a particle size of fr... | 05/09/2000 |
| 6017635 | Hydrophobic composition and a method of preparing a hydrophobic plate The hydrophobic composition prepared by dissolving a hydrophobic resin in a perfluorocarbon solvent, can be very thinly and uniformly coated on a plate. Therefore, when a cell is prepared by using the coated plate, internal pressure of the cell can be dec... | 01/25/2000 |
| 6015635 | Electrode for fuel cell and method of manufacturing electrode for fuel cell In a catalyst electrode 23, a plurality of catalyst clusters 30 and a plurality of electrolyte clusters 32 are connected and entwined with each other. Each catalyst cluster 30 is formed by aggregation of a plurality of carbon particles 36 with a catalyst ... | 01/18/2000 |
| 6007683 | Hybrid deposition of thin film solid oxide fuel cells and electrolyzers The use of vapor deposition techniques enables synthesis of the basic components of a solid oxide fuel cell (SOFC); namely, the electrolyte layer, the two electrodes, and the electrolyte-electrode interfaces. Such vapor deposition techniques provide solut... | 12/28/1999 |
| 6007932 | Tubular fuel cell assembly and method of manufacture A fuel cell assembly including a porous tubular substrate made from a fluid-permeable material, and a plurality of elongated flexible polymer electrolyte fuel cells wound in side by side relation onto the substrate. Each elongated cell includes a central ... | 12/28/1999 |
| 5998057 | Gas diffusion electrode for polymer electrolyte membrane fuel cells A particularly inexpensive, lightweight, homogeneous and porous gas diffusion electrode for polymer electrolyte membrane fuel cells is made in that carbonized carbon fiber nonwoven fabric is coated with a mixture of a soot suspension and a polytetrafluoro... | 12/07/1999 |
