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| Number | Title | Issue Date |
| 7585579 | Electrolyte for metal-oxygen battery and method for its preparation An electrolyte for a metal-oxygen battery includes a non-aqueous solvent which is characterized in that the solubility of oxygen therein is at least 0.1150 cc O2/cc of solvent at STP. The electrolyte also includes an electrolyte salt dissolved in the solv... | 09/08/2009 |
| 7452621 | Polymer membrane for fuel cell and method for preparing the same A polymer electrolyte membrane for a fuel cell includes a porous membrane formed with fine pores, hygroscopic polymer layers coated inside the fine pores of the porous membrane, and proton conductive polymers filled in the fine pores of the porous membrane coated wi... | 11/18/2008 |
| 7416798 | Apparatus and methods for generating water in a fuel cell system Apparatus and methods for the generation of water in a direct oxidation fuel cell. Water, in addition to carbon dioxide and heat, is produced when carbonaceous fuel or fuel solution is oxidized in the presence of air and a suitable catalyst. This oxidation reaction ... | 08/26/2008 |
| 7410710 | Firstout shutdown tracing for fuel processor control system A method and apparatus for determining which condition in a fuel processor has initiated a shutdown of the fuel processor are disclosed. In general, the apparatus generates a plurality of shutdown initiator signals, each corresponding to one of a plurality of shutdo... | 08/12/2008 |
| 7396607 | Manufacturing process for membrane-electrode assemblies The invention provides a manufacturing process for MEA that enables sufficient bond strength among an electrolyte membrane and electrode substrates even when the electrolyte membrane comprises a heat-resistant material such as an aromatic polymer. The process... | 07/08/2008 |
| 7303830 | Fuel cell A fuel cell powered by direct fuel, for example a direct methanol fuel cell, includes a polymer electrolyte membrane which includes a semi-crystalline polymer. Preferred semi-crystalline polymers include first repeat units comprising sulphonated aromatic group conta... | 12/04/2007 |
| 7282295 | Protected active metal electrode and battery cell structures with non-aqueous interlayer architecture Active metal and active metal intercalation electrode structures and battery cells having ionically conductive protective architecture including an active metal (e.g., lithium) conductive impervious layer separated from the electrode (anode) by a porous separator im... | 10/16/2007 |
| 7281681 | Hydrogen powered aircraft Disclosed is an aircraft, configured to have a wide range of flight speeds, consuming low levels of power for an extended period of time, while supporting a communications platform with an unobstructed downward-looking view. The aircraft includes an extendable slat ... | 10/16/2007 |
| 7255956 | Environmentally tolerant anode catalyst for a solid oxide fuel cell A solid oxide fuel cell includes a cathode, a solid ceramic electrolyte, and an anode comprising a cermet containing an environment tolerant catalyst, such as a fuel starvation and/or a sulfur tolerant catalyst. ... | 08/14/2007 |
| 7238448 | Cathode for air assisted battery A cathode for an air recovery alkaline battery is disclosed. The cathode contains at least about 60% by weight MnO2 and at least about 2% by weight of a hydrophobic polymer; the MnO2 consists essentially of electrochemically synthesized MnO | 07/03/2007 |
| 7211345 | Membrane electrode assemblies for use in fuel cells Electrocatalyst powders and methods for producing electrocatalyst powders, such as carbon composite electrocatalyst powders. The powders have a well-controlled microstructure and morphology. The method includes forming the particles from an aerosol of precursors by ... | 05/01/2007 |
| 7169497 | Electrochemical cells An electrochemical cell includes a hydrogen generator and a hydrogen fuel cell. ... | 01/30/2007 |
| 7157171 | Metal-air battery with programmed-timing activation This invention provides an actively controlled battery with a programmed-timing actuation capability. As a preferred embodiment, the battery comprises (a) a first metal-air cell assembly and at least a second metal-air cell assembly electronically connected in paral... | 01/02/2007 |
| 7138208 | Rechargeable lithium ion battery A rechargeable lithium ion battery with high power density comprises a positive electrode; a negative electrode; and a non-aqueous electrolytic solution, in which the positive electrode includes a active material layer containing a positive electrode active material... | 11/21/2006 |
| 7138354 | Method for the fabrication of an electrocatalyst layer Electrocatalyst powders and methods for producing electrocatalyst powders, such as carbon composite electrocatalyst powders. The powders have a well-controlled microstructure and morphology. The method includes forming the particles from an aerosol of precursors by ... | 11/21/2006 |
| 7128218 | Metal oil pan with an integrated oil filter The invention relates to a metal oil pan for engines or transmissions, with an oil filter medium arranged therein, wherein part of the oil pan forms the bottom of an oil filter housing and a plastic half-shell forms a cover of the oil filter housing, and the oil fil... | 10/31/2006 |
| 7094490 | Ion conductive block copolymers This invention relates to ion conductive copolymers which are useful in forming polymer electrolyte membranes used in fuel cells. ... | 08/22/2006 |
| 7087341 | Metal-air battery components and methods for making same 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. ... | 08/08/2006 |
| 7066976 | Method for the production of electrocatalyst powders Electrocatalyst powders and methods for producing electrocatalyst powders, such as carbon composite electrocatalyst powders. The powders have a well-controlled microstructure and morphology. The method includes forming the particles from an aerosol of precursors by ... | 06/27/2006 |
| 7066970 | Electrochemical cells Electrochemical cells and methods of making cells are disclosed. In some embodiments, an electrochemical cell includes a housing, a negative electrode in the housing, a positive electrode in the housing, the positive electrode including a wax, and a separator betwee... | 06/27/2006 |
| 7060384 | Polymer electrolyte fuel cell A porous supporting carbon body of a gas diffusion layer is provided with a larger number of smaller pores at its catalyst layer side and a smaller number of larger pores at the other side, particularly with an appropriate distribution of finer mesh at its catalyst ... | 06/13/2006 |
| 7005209 | Fuel cell stack assembly Disclosed herein is a novel fuel cell stack assembly. In one embodiment, the stacks of the present invention comprise: a first and a second end plate; a plurality of fuel cells interposed between the first and second end plates, at least one of the fuel cells having... | 02/28/2006 |
| 7005210 | Flow fields for fuel cells An improved proton exchange membrane fuel cell assembly and fuel cell stack assembly are provided for the economical and efficient production of electricity. The present invention comprises improved flow fields, which provide improved and more efficient mass transpo... | 02/28/2006 |
| 7001687 | Unitized MEA assemblies and methods for making same The present invention comprises a unitized MEA assembly for use in a fuel cell or a fuel cell stack assembly. In the embodiments of the invention, the MEA is made integral to the frame to reduce certain risks and disadvantages associated with nonstabilized MEAs in f... | 02/21/2006 |
| 6967183 | Electrocatalyst powders, methods for producing powders and devices fabricated from same Electrocatalyst powders and methods for producing electrocatalyst powders, such as carbon composite electrocatalyst powders. The powders have a well-controlled microstructure and morphology. The method includes forming the particles from an aerosol of precursors by ... | 11/22/2005 |
| 6955866 | Coated lithium electrodes Batteries including a lithium anode stabilized with a metal-lithium alloy and battery cells comprising such anodes are provided. In one embodiment, an electrochemical cell having an anode and a sulfur electrode including at least one of elemental sulfur, lithium sul... | 10/18/2005 |
| 6951698 | Fuel cell stack assembly An improved proton exchange membrane fuel cell assembly and fuel cell stack assembly are provided for the economical and efficient production of electricity. The present invention comprises improved flow fields and reactant supply systems, which provide improved and... | 10/04/2005 |
| 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 |
| 6911412 | Composite particles for electrocatalytic applications Electrocatalyst powders and methods for producing electrocatalyst powders, such as carbon composite electrocatalyst powders. The powders have a well-controlled microstructure and morphology. The method includes forming the particles from an aerosol of precursors by ... | 06/28/2005 |
| 6890490 | Hydrogen absorbing tank apparatus A gas compressor and a bypass that bypasses the gas compressor are provided between a hydrogen absorbing tank and a hydrogen gas consumer device such as, for example, a fuel cell. When the hydrogen gas generating pressure is low during an initial period of the hydro... | 05/10/2005 |
| 6835228 | Process of recovering valuable metals from waste secondary batteries A process of recovering metals from waste lithium ion/Ni—H/Ni—Cd batteries, wherein the waste batteries are calcined and sieved to generate an ash containing metals and metal oxides. The process includes subjecting the ash to a first dissolution etching treatmen... | 12/28/2004 |
| 6833167 | Methanol fuel cell comprising a membrane which conducts metal cations The invention relates to a methanol fuel cell comprising a membrane which conducts metallic cations, in which the metallic cations induce the transport of the charge inside the membrane and are advantageously guided in a circuit in the form of a base from the cathod... | 12/21/2004 |
| 6818192 | 12CaO • 7Al2O3 compound clathrating active oxygen species and method for preparing the same The present invention provides a 12CaO.7Al2O3 compound containing an O2− ion radical and/or an O− ion radical in a high concentration of 1020 cm−3 or more. This compound can be used a... | 11/16/2004 |
| 6805985 | Fuel cell and fuel cell system A fuel cell usable as a small-sized secondary cell such as a button type cell and a fuel cell system including the fuel cells are provided. The fuel cell has a first electrode, an electrolyte membrane, a second electrode, and a hydrogen storing material. The electro... | 10/19/2004 |
| 6803140 | Gallate based complex oxide electrolyte material A solid electrolyte material contains an A site-deficient complex oxide represented by a chemical formula A1-αBO3-δ, in which a B site contains at least Ga. This solid electrolyte material has stability, high oxide-ion conductivity at low tem... | 10/12/2004 |
| 6793544 | Corrosion resistant fuel cell terminal plates The present invention relates to an electrochemical cell having a terminal collector plate element that conducts electrical current from the stack. The terminal plate has an electrically conductive region and an electrically non-conductive region of the surface. The... | 09/21/2004 |
| 6758871 | Liquid fuel compositions for electrochemical fuel cells A new fuel composition useful for catalytic fuel cells is made up of at least two components. The primary fuel component is a surface active compound, such as methanol, that is a source of and acts to prevent unwanted decomposition of the auxiliary fuel. The auxilia... | 07/06/2004 |
| 6737185 | Sodium gallium oxide electrolyte additive for aluminum anode activation An additive for an aluminum-based semi-fuel cell system includes a combination of components including gallium, oxygen, and a sodium component dissolvable an alkaline electrolyte solution such as seawater and sodium hydroxide. These components form sodium gallium ox... | 05/18/2004 |
| 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 |
| 6670065 | Solid polymer electrolyte, a membrane using thereof, a solution for coating electrode catalyst, a membrane/electrode assembly, and a fuel cell A solid polymer electrolyte is made up of a polymer compound having a hydrocarbon aromatic group in the backbone thereof and including a side chain expressed by FORMULA 1: wherein "n" is 1, 2, 3, 4, 5, or 6. The solid polymer electrolyte may be incorporat... | 12/30/2003 |