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| Number | Title | Issue Date |
| 6818340 | Capillary transporting fuel battery The present invention is to provide a kind of capillary transporting fuel battery, wherein on two sides of two fuel battery substrates faced to each other it forms a gap with an appropriate distance, two sides of those two fuel battery substrates are a “liquid fue... | 11/16/2004 |
| 6811916 | Fuel cell electrode pair assemblies and related methods Disclosed herein are fuel cell systems and, more specifically, fuel cell electrode pair and stack assemblies and various methods relating thereto. In one embodiment, the present invention is directed to a fuel cell electrode pair assembly adapted for use with a fuel... | 11/02/2004 |
| 6811903 | Electrochemical cell recharging system A rechargeable electrochemical cell system is provided. The system includes a plurality of cells, wherein each cell is comprised of a first electrode, a second electrode, and a third electrode electrically isolated from the second electrode. The cell system may be d... | 11/02/2004 |
| 6808840 | Silicon-based fuel cell electrode structures and fuel cell electrode stack assemblies The present invention is directed to silicon electrode structures and silicon electrode assemblies associated with fuel cell systems, as well as to methods relating thereto. In one embodiment, the present invention is directed to an electrode structure adapted for u... | 10/26/2004 |
| 6808834 | Fuel cell stack with cooling fins and use of expanded graphite in fuel cells For an improved cooling a fuel cell stack (1) with cooling fins extending around the periphery of the stack, the section of the stack has a somewhat longitudinal shape. In detail, the stack comprises: a plurality of fuel cells electrically connected in series... | 10/26/2004 |
| 6803143 | Gas diffusion structures and gas diffusion electrodes for polymer electrolyte fuel cells A gas diffusion structure for polymer electrolyte fuel cells having a sheet-like carbon substrate made hydrophobic and having two main opposing surfaces and a contact layer on one of these surfaces. The contact layer is formed of an intimate mixture of at least one ... | 10/12/2004 |
| 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 |
| 6803137 | Fuel cell A solid polymer fuel cell which had a plurality of unit cells stacked one after another includes an electrode of an anion exchange membrane and an electrode of a cation exchange membrane disposed adjacent but not in contact with each other, gas diffusion layers comm... | 10/12/2004 |
| 6800392 | Niobium alloy and hydrogen permeation membrane produced from it A hydrogen permeation membrane including a niobium alloy with 5-25 wt. % of at least one element from the group consisting of palladium, ruthenium, rhenium, platinum, gold, and rhodium. ... | 10/05/2004 |
| 6800391 | Membrane electrode assemblies for direct methanol fuel cells and methods for their production A method of producing a membrane electrode assembly for use in direct methanol fuel cells by serigraphically printing cathode catalysts or anode catalysts with a carbon backing layer onto graphite or carbon paper, boiling impurities from these layers, and bonding th... | 10/05/2004 |
| 6797667 | Process for preparing an anode catalyst for fuel cells and the anode catalyst prepared therewith The invention provides a process for preparing a platinum-ruthenium catalyst and the catalyst prepared therewith. The catalyst can be supported on a support material in powder form or may also be unsupported. To prepare the supported catalyst, the support material i... | 09/28/2004 |
| 6794080 | Electrochemical energy conversion Various devices and methods for achieving electrochemical energy conversion are presented. In accordance with one embodiment, an energy conversion cell is configured to enable the first and second reactant supplies to communicate selectively with first and second ca... | 09/21/2004 |
| 6790551 | Modified redox couple fuel cell cathodes and fuel cells employing same Fuel cell oxygen electrodes and instant startup fuel cells employing the oxygen electrode. The oxygen electrodes operate through the mechanism of redox couples which uniquely provide multiple degrees of freedom in selecting the operating voltages available for such ... | 09/14/2004 |
| 6787264 | Method for manufacturing fuel cells, and articles made therewith A method for manufacturing a fuel cell assembly, and a fuel cell assembly produced by the method, are provided, with the method comprising providing at least one fuel cell unit, wherein providing the at least one fuel cell unit comprises providing at least one subst... | 09/07/2004 |
| 6787261 | Solid oxide fuel cell A solid oxide fuel cell in which the catalytic activity of a fuel electrode is high and in which no poisoning by carbon occurs even when internal reforming is performed under a condition of a low S/C ratio and further in which the time course degradation of the fuel... | 09/07/2004 |
| 6783891 | Fuel cell cathode with redox couple Fuel cell oxygen electrode and instant startup fuel cells employing such oxygen electrode. The oxygen electrode operates through the mechanism of redox couples which uniquely provide multiple degrees of freedom in selecting the operating voltages available for such ... | 08/31/2004 |
| 6777125 | Fuel cell cathode with redox couple Fuel cell oxygen electrode and instant startup fuel cells employing such oxygen electrode. The oxygen electrode operates through the mechanism of redox couples which uniquely provide multiple degrees of freedom in selecting the operating voltages available for such ... | 08/17/2004 |
| 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 |
| 6756150 | Fuel cell having a non-electrolytic layer A non-electrolytic layer that can be used, for example, in an electrode unit, a fuel cell, and/or a fuel cell stack is disclosed. ... | 06/29/2004 |
| 6753108 | Energy devices and methods for the fabrication of energy devices Energy devices such as batteries and methods for fabricating the energy devices. The devices are small, thin and lightweight, yet provide sufficient power for many handheld electronics. ... | 06/22/2004 |
| 6750169 | Composite electrodes for solid state devices A solid state ionic device includes a dense electrolyte sandwiched between two porous electrodes. In one embodiment, the device is anode supported and the cathode is formed of a porous three-dimensional solid phase structure having an electrocatalytic phase of a plu... | 06/15/2004 |
| 6749892 | Method for fabricating membrane-electrode assembly and fuel cell adopting the membrane-electrode assembly A method for fabricating a membrane-electrode assembly, and fuel cells adopting a membrane-electrode assembly formed by the method, wherein the method includes: coating nano-sized catalytic metal particles on a proton exchange polymer membrane by sputtering a cataly... | 06/15/2004 |
| 6743543 | Fuel cell using variable porosity gas diffusion material A fuel cell (100) includes a membrane electrode assembly (110) located together with a layer of variable porosity porous gas diffusion material (150). The variable porosity gas diffusion material layer (150) operates to selectively limit ... | 06/01/2004 |
| 6733913 | Fuel cell system for low pressure operation This invention is an improved fuel cell design for use at low pressure. The invention has a reduced number of component parts to reduce fabrication costs, as well as a simpler design that permits the size of the system to be reduced at the same time as performance i... | 05/11/2004 |
| 6730427 | Electrode for fuel cell and method of manufacturing the same Catalyst material containing two or more kinds of metal elements or/and silicon are mainly carried in proton conductive passages of a solid polymer electrolyte and the surface of each of carbon particles which abut on each the proton conductive passages. ... | 05/04/2004 |
| 6723464 | Membrane-electrode-assembly with solid polymer electrolyte A membrane-electrode-assembly with a solid polymer electrolyte, wherein a laminated structure is obtained by a process in which a membrane/catalyst layer conjugate produced by bonding a first catalyst layer containing a catalyst and an ion-conducting resin to a soli... | 04/20/2004 |
| 6720105 | Metallic blocking layers integrally associated with fuel cell electrode structures and fuel cell electrode stack assemblies Metallic blocking layers integrally associated with fuel cell electrode structures and fuel cell electrode stack assemblies, as well as to methods relating thereto, are disclosed herein. More specifically, the present invention is directed to a metallic blocking lay... | 04/13/2004 |
| 6720100 | Catalyst for oxidation of gaseous compound A solid electrolyte fuel cell having an anode including an oxidation catalyst of a gaseous compound fine in size and superior in oxidation action able to eliminate pulverization work is provided. The oxidation catalyst is of a gaseous compound comprising a catalyst ... | 04/13/2004 |
| 6716551 | Abraded fluid diffusion layer for an electrochemical fuel cell In a method of manufacturing a fluid diffusion layer for a solid polymer electrolyte fuel cell, a surface of the fluid diffusion layer is abraded so that the topography of the fluid diffusion layer surface is rendered more uniform. The fluid diffusion layer comprise... | 04/06/2004 |
| 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 |
| 6713424 | Method of making fluid diffusion layers and electrodes having reduced surface roughness The present methods make fluid diffusion layers having reduced surface roughness. The methods used for adhering the loading material to the substrate surface can reduce the average surface roughness of the fluid diffusion layers, thereby reducing leaks in and damage... | 03/30/2004 |
| 6706431 | Fuel cell A fuel cell having an electrode and/or catalyst formed from a nano-carbon material, such as fullerene, carbon nanotube, carbon nanohorn, carbon nano-fiber or metal encapsulated fullerene. Such fuel cells may not use platinum in the electrode or catalyst, or may use ... | 03/16/2004 |
| 6703156 | Fuel cell cathode utilizing multiple redox couples Fuel cell oxygen electrode and instant startup fuel cells employing such oxygen electrode. The oxygen electrode operates through the mechanism of redox couples which uniquely provide multiple degrees of freedom in selecting the operating voltages availabl... | 03/09/2004 |
| 6699613 | Fuel cell having sealant for sealing a solid polymer electrolyte membrane The fuel cell of the present invention comprises: a membrane electrode assembly having a solid polymer electrolyte membrane, an anode side diffusion electrode (an anode electrode, and a second diffusion layer) disposed at one side of the solid polymer ele... | 03/02/2004 |
| 6696189 | Direct methanol fuel cell system including an integrated methanol sensor and method of fabrication A fuel cell system and method of forming the fuel cell system including a base portion, formed of a singular body, and having a major surface. At least one fuel cell membrane electrode assembly is formed on the major surface of the base portion. A fluid s... | 02/24/2004 |
| 6692861 | Carbon-oxygen fuel cell The present invention relates to a fuel cell that use carbon and oxygen as fuel sources. In particular, the fuel cell comprises a carbon-containing anode, an electrolyte and a solid state cathode. Heating the fuel cell to temperatures of 400° C.-2000° C... | 02/17/2004 |
| 6692856 | High throughput screening device for combinatorial chemistry A high throughput screening device for combinatorial chemistry, comprising a membrane electrode assembly, an array of sensor electrodes and one or more common electrodes, wherein a total cross-sectional area of the one or more common electrodes is greater... | 02/17/2004 |
| 6689711 | Methods of producing oxygen reduction catalyst Methods of making an oxygen reduction catalyst are described in which carbon black, one or more metal-containing and/or nitrogen-containing precursor(s) are provided to a reaction zone, and the carbon black is rendered catalytically active. To form this c... | 02/10/2004 |
| 6689505 | Electrocatalyst for fuel cells Electrocatalyst which are formed of a carbon support, which is a carbon black with an H content of >4000 ppm and, as the catalytically active component, platinum or bi- or multi-metallically doped or alloyed platinum. The electrocatalysts are prepared by ... | 02/10/2004 |
| 6682837 | Method for producing electricity using a platinum-ruthenium-palladium catalyst in a fuel cell A method for producing electricity using a fuel cell that utilizes a ternary alloy composition as a fuel cell catalyst, the ternary alloy composition containing platinum, ruthenium and palladium. The alloy shows increased activity as compared to well-know... | 01/27/2004 |
