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| Number | Title | Issue Date |
| 7749639 | Gas diffusion electrode and solid polymer electrolyte fuel cell A gas diffusion electrode includes: an electrode catalyst layer; microporous layers arranged on the electrode catalyst layer and including at least second and first microporous layers, wherein the second microporous layer disposed on the electrode catalyst layer sid... | 07/06/2010 |
| 7727664 | Production method for fuel cell A production method for a fuel cell including an electrolyte, an anode which is provided on one of both sides of the electrolyte, a cathode which is provided on the other side of the electrolyte, and separators one of which is provided on an outer side of the anode ... | 06/01/2010 |
| 7727663 | Fuel cell with proton conducting membrane and with improved water and fuel management The present invention provides a cathode and a fuel cell, which are built to prevent escape of liquids, e.g. water and fuel solution, from the cell. Thus, according to a first aspect thereof, the present invention provides a cathode suitable for use in a fuel cell h... | 06/01/2010 |
| 7687184 | Membrane electrode assembly with a fibrous substrate, method for producing the same and polymer electrolyte fuel cell In a conventional polymer membrane electrode assembly, particularly when operated for a long period of time, a portion of the polymer electrolyte membrane to be in contact with the gas diffusion layer has suffered significant degradation. In order to address this, i... | 03/30/2010 |
| 7662505 | Porous electrode, and electrochemical element made using the same The primary object of the present invention is to provide an electrode with which an efficient electrode reaction will occur. The present invention relates to a porous electrode which is an electrode composed of a porous material having electron conductivity, wherei... | 02/16/2010 |
| 7655343 | Liquid fuel supply type fuel cell A fuel cell (100) which has an electrode-electrolyte joined article (101) composed of a fuel electrode (102), an oxidizing agent electrode (108) and, sandwiched thereby, a solid polymer electrolyte (114), characterized in that a se... | 02/02/2010 |
| 7597991 | Flex based fuel cell A fuel cell uses porous metal layers attached on a flex substrate for delivery of liquid fuel to the active catalytic areas on the anodic side. The flex substrate may form an enclosed package such that the liquid fuel can be contained in the enclosed volume and the ... | 10/06/2009 |
| 7592092 | Fuel cell having a hydrogen electrode catalyst layer porosity that is lower than the air electrode catalyst layer porosity In a membrane electrode assembly 1 of a fuel cell, the porosity of a hydrogen electrode-side catalyst layer 11a is made to be lower than that of an air electrode-side catalyst layer 11b. Specifically, the weight ratio of ion-exchan... | 09/22/2009 |
| 7566513 | Solid electrolyte fuel cell with a multi-layer cathode formed of a solid electrolyte and electrode admixture A solid electrolyte fuel cell including a cathode layer formed on one surface of a solid electrolyte layer and an anode layer formed on the other surface of the solid electrolyte layer, wherein the cathode layer is a multi-layer structure including at least two laye... | 07/28/2009 |
| 7452626 | Fuel cell for portable radio-electronic equipment The invention relates to the field of alcohol-air fuel cells (FC) designed for use in portable radio-electronic equipment, such as cellular phones, notebooks, etc. In accordance with the invention a fuel cell FC comprises a housing with arranged therein a liquid cat... | 11/18/2008 |
| 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 |
| 7419546 | Gas diffusion electrodes, membrane-electrode assemblies and method for the production thereof A method for forming a noble metal coating on a gas diffusion medium substantially free of ionomeric components comprising subjecting an electrically conductive web to a first ion beam having an energy not higher than 500 eV, then to a second beam having an energy o... | 09/02/2008 |
| 7414004 | Gas diffusion layer, electrode and membrane electrode assembly for fuel cell, and production methods thereof The present invention provides a gas diffusion layer for a fuel cell which has proper rigidity, is easy to handle and contributes to the improvement of the productivity of fuel cells. A method for producing a gas diffusion layer for a fuel cell including a first ste... | 08/19/2008 |
| 7410720 | Fuel cell and method for manufacturing the same An electrode sheet (489) is put in one side of a solid electrolyte membrane (114) at its cut portion. A base member (110) for an oxidant electrode side current collector electrode sheet (499) is placed at a location facing a base member (... | 08/12/2008 |
| 7407721 | Direct oxidation fuel cell operating with direct feed of concentrated fuel under passive water management A passive direct oxidation fuel cell system, which uses a high concentration fuel such as neat methanol as a direct feed to an anode aspect of the fuel cell, is provided. The fuel cell includes a passive water management capability, achieved by the combined function... | 08/05/2008 |
| 7399393 | Oxide ion conductive ceramic membrane structures for high-pressure oxygen production The invention concerns an oxide ion conductive ceramic membrane, characterized in that it comprises a non-null finite volume with non-null total thickness E, comprising, a dense layer (CD) of a solid electrolyte, a so-called bonding layer (CA), of mixed conductive p... | 07/15/2008 |
| 7396797 | Production method of catalyst for fuel cell and of fuel cell, and catalyst for fuel cell and fuel cell A method for producing a catalyst for a fuel cell is provided which is capable of improving output characteristics of the fuel cell. Metal fine particles making up the catalyst for the fuel cell to be used as a fuel electrode and air electrode are formed by reducing... | 07/08/2008 |
| 7384996 | Phosphorus-containing polymer compound, synthesizing method thereof, antioxidant, high-durability polymer electrolyte composite, electrode, and fuel cell The invention provides phosphonated poly(4-phenoxybenzoyl-1,4-phenylene), and synthesizing method thereof, an antioxidant formed of phosphonated poly(4-phenoxybenzoyl-1,4-phenylene), a high-durability polymer electrolyte composite formed of a fluoropolymer electroly... | 06/10/2008 |
| 7377948 | Layered electrochemical cell and manufacturing method therefor Methods of the present invention are provided for forming a plurality of electrochemical cell layers, each cell layer generally including a pair of electrodes and a separator electrically insulating the pair of electrodes. Cells of a desired size are formed by slici... | 05/27/2008 |
| 7371481 | Electrode having macropores and micropores therein An electrode is disclosed. The electrode includes a substrate having macropores therein. A barrier support layer, established on the substrate, has micropores therein. The macropores and at least some of the micropores are substantially lined with an electrolyte lay... | 05/13/2008 |
| 7368200 | Composite polymer electrolyte membranes and electrode assemblies for reducing fuel crossover in direct liquid feed fuel cells A composite proton exchange membrane includes first and second outer proton exchange membrane layers each having an exterior peripheral portion. An inner proton exchange membrane layer is interposed between the first and second outer membrane layers. The inner membr... | 05/06/2008 |
| 7364814 | Separator of a fuel cell and a manufacturing method thereof A separator of a fuel cell includes a base material and a surface treatment layer formed on the base material. The surface treatment layer includes a base material-side portion made from metal and a base material opposite-side portion made from carbon formed at an a... | 04/29/2008 |
| 7361426 | Surface structure for enhancing catalyst reactivity and method of manufacturing thereof A method of enhancing catalyst reactivity includes (1) depositing a conductive oxide on a suitable substrate, (2) depositing a thin film of catalyst on top of the conductive oxide to form a sandwich structure, and (3) annealing the structure at a, suitable temperatu... | 04/22/2008 |
| 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 |
| 7348092 | Apparatus for and method of forming seals in fuel cells and fuel stacks A sealing technique is provided for forming complex and multiple seal configurations for fuel cells and other electrochemical cells. To provide a seal, for sealing chambers for oxidant, fuel and/or coolant, a groove network is provided extending through the various ... | 03/25/2008 |
| 7345005 | Electrocatalysts and processes for producing Noble metal catalysts and methods for producing the catalysts are provided. The catalysts are useful in applications such as fuel cells. The catalysts exhibit reduced agglomeration of catalyst particles as compared to conventional noble metal catalysts. ... | 03/18/2008 |
| 7344791 | Electrolytic membrane for fuel cell and its manufacturing method, and fuel cell and its manufacturing method A conventional direct methanol solid polymer fuel cell comprises a solid polymer electrolyte as an electrolyte. This type of cell involves some problems; methanol permeates the membrane; the electromotive force lowers because of direct oxidation; and the membrane me... | 03/18/2008 |
| 7344571 | Hydrogen generator A hydrogen generator includes a housing, a solid hydrogen source disposed within the housing, and an inlet configured to guide a fluid to contact the solid hydrogen source. The inlet can contact a wicking region. The wicking region can include a wicking material tha... | 03/18/2008 |
| 7341806 | Battery having carbon foam current collector A battery cell includes a negative current collector and at least one carbon foam positive current collector disposed within the cell such that the negative current collector at least partially surrounds the at least one carbon foam positive current collector. An in... | 03/11/2008 |
| 7338624 | Ceramic manufacture for a composite ion transport membrane A method of producing a green form for use in manufacturing a composite, ceramic ion transport membrane is provided in which first and second ceramic powder mixtures are used to produce first and second layers of the green form. The first and second ceramic powder m... | 03/04/2008 |
| 7335436 | Proton exchange membrane fuel cell stack Provided a proton exchange membrane fuel cell (PEMFC) stack with at least two cell units. Each cell unit includes: a catalyzed membrane formed by catalyzing both surfaces of an electrolyte layer; a fuel flow field portion and air flow field portion formed at opposit... | 02/26/2008 |
| 7326480 | Fuel cell power system and method of controlling a fuel cell power system A fuel cell power system includes a fuel cell which has an optimal voltage; an energy storage device having a nominal voltage substantially similar to the optimal voltage of the fuel cell; and an electrical switch that, in operation, selectively electrically couples... | 02/05/2008 |
| 7312174 | Method for preparing highly loaded, highly dispersed platinum metal on a carbon substrate The invention is directed to a simple method for preparing highly dispersed, highly loaded platinum metal elements on various carbon substrates, including conductive carbon black, which is utilized in fuel cell electrodes. Utilizing carbon with a controlled point of... | 12/25/2007 |
| 7300719 | Porous diffusion media and bipolar plate assembly with anion exchange resin and devices incorporating same A device comprising a membrane electrode assembly, porous diffusion media, and at least one pair of bipolar plate assemblies is provided. The membrane electrode assembly is interposed between a pair of diffusion media substrates, the bipolar plate assembly comprises... | 11/27/2007 |
| 7300561 | Oxide ion conductive ceramic membrane stacked microstructures; use for separating oxygen from air The invention concerns an oxide ion conductive ceramic membrane, characterized in that it comprises a non-null finite volume with non-null total thickness E, comprising a dense layer (CD) of a solid electrolyte, a so-called bonding layer (CA), of two porous electrod... | 11/27/2007 |
| 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 |
| 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 |
| 7291419 | Durable membrane electrode assembly catalyst coated diffusion media with no lamination to membrane A technique for fabricating an MEA for a fuel cell that is prepared as a catalyst-coated diffusion media (CCDM). The MEA includes a diffusion media layer having a microporous layer. A catalyst layer is deposited on the microporous layer so that it covers its entire ... | 11/06/2007 |
| 7291191 | Fuel cell cartridge filters and pressure relief Described herein is a portable storage device that stores a hydrogen fuel source. The storage device includes a bladder that contains the hydrogen fuel source and conforms to the volume of the hydrogen fuel source. A housing provides mechanical protection for the bl... | 11/06/2007 |
