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| Number | Title | Issue Date |
| 7709135 | Efficient process for previous metal recovery from cell membrane electrode assemblies A method is provided for recovering a catalytic element from a fuel cell membrane electrode assembly. The method includes grinding the membrane electrode assembly into a powder, extracting the catalytic element by forming a slurry comprising the powder and an acid l... | 05/04/2010 |
| 7635534 | Simplified process for leaching precious metals from fuel cell membrane electrode assemblies The membrane electrode assemblies of fuel cells are recycled to recover the catalyst precious metals from the assemblies. The assemblies are cryogenically embrittled and pulverized to form a powder. The pulverized assemblies are then mixed with a surfactant to form ... | 12/22/2009 |
| 7449262 | Current collector to conduct an electrical current to or from an electrode layer A current collector and method of forming the same in which a slurry is prepared that contains electrically conductive particles having surface deposits of a metallic oxide on a metal or metal alloy conductor that has a lower weight percentage of the electrically co... | 11/11/2008 |
| 7432009 | Lamination apparatus and methods Components for the manufacture of polymer electrolyte membrane fuel cells are provided, as well as apparatus and automatable methods for their manufacture by rotary die cutting and by lamination of various layers to form membrane electrode assemblies. A method and a... | 10/07/2008 |
| 7422822 | Single cell for a solid oxide fuel cell A single cell for SOFC operating at low temperatures is provided, including a first solid electrolyte with oxide ion conductivity at 800° C. of 0.015 S/cm or more and bending strength of 600 MPa or more, a fuel electrode and bonded to one side of the first electrol... | 09/09/2008 |
| 7351491 | Supporting electrodes for solid oxide fuel cells and other electrochemical devices An electrode supported electrolyte membrane includes an electrode layer 630 facing an electrolyte layer 620. The opposing side of the electrode layer 630 includes a backing layer 640 of a material with a thermal expansion coefficient appr... | 04/01/2008 |
| 7351487 | Fuel cell A fuel cell comprising a gas-permeable and electrically conducting support substrate having a fuel gas passage formed therein; a fuel-electrode layer formed on said substrate; a solid electrolytic layer formed on said support substrate so as to cover said fuel-elect... | 04/01/2008 |
| 7351488 | Structures and fabrication techniques for solid state electrochemical devices Porous substrates and associated structures for solid-state electrochemical devices, such as solid-oxide fuel cells (SOFCs), are low-cost, mechanically strong and highly electronically conductive. Some preferred structures have a thin layer of an electrocatalyticall... | 04/01/2008 |
| 7326488 | Diffusion film, electrode having the diffusion film, and process for producing diffusion film A diffusion membrane contains uncalcined polytetrafluoroethylene (PTFE), calcined PTFE and a conductive substance. An electrode has the diffusion layer (membrane) and a catalyst layer disposed thereon. A process for producing diffusion membranes comprises dispersing... | 02/05/2008 |
| 7300718 | Electrolyte-electrode joined assembly and method for producing the same A flattening layer is provided between an anode and a solid electrolyte. The flattening layer has a porosity which is set to be smaller than that of the anode. Large diameter pores, which are open at an end surface of the anode on a side facing the solid electrolyte... | 11/27/2007 |
| 7297271 | Titanium powder sintered compact Provided are a porous sintered compact suitable for a filter, a power feeder in a polymer electrolyte membrane type water electrolyzer, a current collector in a solid polymer fuel cell and in addition a liquid dispersion plate, especially an ink dispersion plate for... | 11/20/2007 |
| 7297436 | Fuel cell A solid electrolytic fuel cell having an oxygen electrode layer on one surface of a solid electrolytic layer, having a fuel electrode layer on the other surface thereof, and having a reaction-preventing layer comprising a sintered body of an oxide between the upper ... | 11/20/2007 |
| 7291418 | Methods and systems for elevating a temperature within a fuel cell A method for elevating a temperature within a fuel cell having a cathode, an electrolyte and an anode, includes, prior to the electrolyte reaching a minimum temperature at which oxygen ions cross the electrolyte, conducting an exothermic reaction at the cathode or t... | 11/06/2007 |
| 7282280 | Method for producing a melt carbonate-fuel cell and to melt carbonate fuel cells The invention relates to a method for producing a melt carbonate fuel cell comprising a cathode layer made from porous nickel oxide, an anode layer made from porous nickel and a melt arranged between the cathode layer and the anode layer, received in the form of a f... | 10/16/2007 |
| 7244526 | Solid oxide fuel cell anodes and electrodes for other electrochemical devices An anode supported electrochemical device, such as a SOFC, is disclosed. A thin layer of electrolyte 310 is supported on an anode layer comprised of an active anode layer 320 and a bulk anode layer 340. The bulk anode layer includes silicon carb... | 07/17/2007 |
| 7235325 | Single cell for a solid oxide fuel cell A single cell for SOFC operating at low temperatures, is provided, including a first solid electrolyte with oxide ion conductivity at 800° C. of 0.015 S/cm or more and bending strength of 600 MPa or more, a fuel electrode and bonded to one side of the first electro... | 06/26/2007 |
| 7205063 | Lanthanum gallate-based sintered body, manufacturing method thereof, and solid oxide fuel cell using the same as solid electrolyte A lanthanum gallate-based sintered body comprises a base material formed of lanthanum gallate-based oxide, and grains having a K2NiF4 structure and/or grains having a layered perovskite structure are dispersed into the base material. Consequent... | 04/17/2007 |
| 7186475 | Unit cell for solid oxide electrolyte type fuel cell and related manufacturing method A unit cell for a solid electrolyte fuel cell is provided with an air electrode, a fuel electrode, a solid electrolyte sandwiched between the air electrode and the fuel electrode, and a porous metallic base body joined to at lease one of the air electrode and the fu... | 03/06/2007 |
| 7141329 | Electrode having microstructure of extended triple phase boundary by porous ion conductive ceria film coating and method to manufacture the said electrode Disclosed is an electrode having a novel configuration for improving performance of the electrode used in solid-oxide fuel cells, sensors and solid state devices, in which the electrode providing electron conductivity is coated with ion conductive ceramic ceria film... | 11/28/2006 |
| 7132193 | Fuel cell A fuel cell. The anode of the fuel cell comprises a hydrogen oxidation catalyst comprising a finely divided metal particulate. The metal particulate may be a nickel and/or nickel alloy particulate having a particle size less than about 100 Angstroms. ... | 11/07/2006 |
| 7108938 | Single cell for a solid oxide fuel cell A single cell for a solid oxide fuel cell and a solid oxide fuel cell using the same practicable and excellent in generation performance and durability, wherein a fuel electrode including a cermet of a catalyst and a second solid electrolyte with oxide ion conductiv... | 09/19/2006 |
| 7074255 | Noble metal gas barriers A method for separating gases within a barrier, and a metallic barrier separating the gases is provided for use in solid oxide fuel cells, or SOFC. A network of pores can vent steam formed within the barrier by the reaction of hydrogen diffusing from one side and ox... | 07/11/2006 |
| 7070879 | Fuel cell or electrodes with passive support An electrode suitable for use in a fuel cell includes a passive support having pores wherein the passive support has an asymmetric pore morphology with respect to at least one dimension of the passive support; and an electrode material positioned in the pores of the... | 07/04/2006 |
| 7063913 | Diffusion media with microporous layer Specially prepared gas diffusion media improve the performance of PEM fuel cells. The media are made by first dipping an electrically conductive porous material such as carbon fiber paper into a suspension of hydrophobic polymer and drying the paper to create a desi... | 06/20/2006 |
| 7056613 | Fuel cell having metalized gas diffusion layer A fuel cell is described and which includes an ion exchange membrane; an electrode positioned in ion exchanging relation relative to the ion exchange membrane; a gas diffusion layer borne by the electrode and having an outwardly facing surface; a porous metal coatin... | 06/06/2006 |
| 7041510 | System and method for programmable illumination pattern generation A method and apparatus for the manipulation of colloidal particulates and biomolecules at the interface between an insulating electrode such as silicon oxide and an electrolyte solution. Light-controlled electrokinetic assembly of particles near surfaces relies on t... | 05/09/2006 |
| 7033555 | Low temperature lithiation of mixed hydroxides A low temperature contaminant limiting process for lithiating hydroxides and forming lithiated metal oxides of suitable crystalinity in-situ. M(OH)2 is added to an aqueous solution of LiOH. An oxidant is introduced into the solution which is heated below ... | 04/25/2006 |
| 7029777 | Fuel cell and passive support A fuel cell is disclosed that includes a passive support having a fine pore region disposed between a first coarser pore region and a second coarser pore region. An exemplary fuel cell has an electrolyte material positioned in the fine pore region and a first electr... | 04/18/2006 |
| 7014947 | Integral membrane support and frame structure An electrochemical cell includes a first electrode, a second electrode, and a proton exchange membrane disposed between and in intimate contact with the electrodes. The proton exchange membrane is configured to be integral with a frame structure and includes a subst... | 03/21/2006 |
| 6994884 | High performance fuel cell electrode and method for manufacturing same A method of fabricating a support electrode for a solid oxide fuel cell includes (a) providing a solid support electrode having an upper surface, the solid electrode comprising an electronically non-conductive material and an electronically conductive material; (b) ... | 02/07/2006 |
| 6991941 | Light-controlled electrokinetic assembly of particles near surfaces A method and apparatus for the manipulation of colloidal particulates and biomolecules at the interface between an insulating electrode such as silicon oxide and an electrolyte solution. Light-controlled electrokinetic assembly of particles near surfaces relies on t... | 01/31/2006 |
| 6984467 | Plasma sprayed ceria-containing interlayer A plasma sprayed ceria-containing interlayer is provided. The interlayer has particular application in connection with a solid oxide fuel cell used within a power generation system. The fuel cell advantageously comprises an air electrode, a plasma sprayed interlayer... | 01/10/2006 |
| 6979511 | Structures and fabrication techniques for solid state electrochemical devices Provided are low-cost, mechanically strong, highly electronically conductive porous substrates and associated structures for solid-state electrochemical devices, techniques for forming these structures, and devices incorporating the structures. The invention provide... | 12/27/2005 |
| 6958196 | Porous electrode, solid oxide fuel cell, and method of producing the same The present invention generally relates to porous electrodes for use in solid oxide fuel cells, whereby the electrodes are comprised primarily of ceramic material and electronically conductive material. The electrodes are prepared by impregnating a porous ceramic ma... | 10/25/2005 |
| 6921604 | DEVICE AND METHOD FOR EVALUATING PERFORMANCE OF FUEL CELLS, DEVICE AND METHOD FOR EVALUATING SPECIFIC SURFACE AREA OF FUEL-CELL ELECTRODE CATALYSTS, FUEL-CELL ELECTRODE CATALYST, AND METHOD OF MANUFACTURING THE SAME A device and a method for simply and accurately evaluating-performance of fuel cells have been provided. Hydrogen gas and carbon monoxide gas are caused to flow into a sample holder where an electrode catalyst sample is laid, and the amount of carbon monoxide gas di... | 07/26/2005 |
| 6916443 | High differential pressure electrochemical cell An electrochemical cell capable of operating in pressure differentials exceeding about 2,000 psi, using a porous electrode. The porous electrode comprises a catalyst adsorbed on or in a porous support that is disposed in intimate contact and fluid communication with... | 07/12/2005 |
| 6846588 | Hollow inorganic membranes produced by metal or composite electrodeposition This invention relates to a method of producing a hollow inorganic membrane that is particularly suitable for solid oxide fuel cell applications, as well as producing hollow inorganic composite laminated membranes having at least one such hollow inorganic membrane. ... | 01/25/2005 |
| 6803138 | Ceramic electrolyte coating methods Processes for preparing aqueous suspensions of a nanoscale ceramic electrolyte material such as yttrium-stabilized zirconia. The invention also includes a process for preparing an aqueous coating slurry of a nanoscale ceramic electrolyte material. The invention furt... | 10/12/2004 |
| 6759161 | Integral membrane support and frame structure An electrochemical cell includes a first electrode, a second electrode, and a proton exchange membrane disposed between and in intimate contact with the electrodes. The proton exchange membrane is configured to be integral with a frame structure and includes a subst... | 07/06/2004 |
| 6716549 | Fuel cell having metalized gas diffusion layer A fuel cell is described and which includes an ion exchange membrane; an electrode positioned in ion exchanging relation relative to the ion exchange membrane; a gas diffusion layer borne by the electrode and having an outwardly facing surface; a porous metal coatin... | 04/06/2004 |
