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6017650 |
Gas-diffussion electrodes for polymeric membrane fuel cell
The present invention describes an improved electrode suitable for application in solid polymer electrolyte fuel cells, comprising a thin, porous, planar, conductive substrate having one side...
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6017647 |
Electrode structure for solid state electrochemical devices
A composite oxygen electrode/electrolyte structure for a solid state electrochemical device having a porous composite electrode in contact with a dense electrolyte membrane, which electrode...
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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...
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6010606 |
Gas diffusion electrodes
A gas diffusion electrode comprising a non-woven network of fibers, one or more catalysts components and at least one polymeric substance characterised in that the catalyst is embedded within the...
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6007934 |
Co-tolerant anode catalyst for PEM fuel cells and a process for its preparation
A platinum supported catalyst is disclosed for the anode in a PEM fuel cell with high resistance to poisoning by carbon monoxide. The catalyst contains the noble metals platinum and ruthenium on a...
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6004696 |
AG-perovskite cermets for thin film solid oxide fuel cell air-electrode applications
An air electrode for a solid oxide fuel cell having high conductivity and low interfacial resistance is disclosed. Said air electrode is composed of an Ag-perovskite cermet.
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5998058 |
Porous support layer for an electrochemical cell
An improved porous support layer is disclosed for use in an electrochemical cell such as a fuel cell having a proton exchange membrane ("PEM") as an electrolyte. In a preferred embodiment the...
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5998056 |
Anode substrate for a high temperature fuel cell
In an anode structure for a high temperature fuel cell which has a non-catalytic phase and a catalytic phase with respect to methane-vapor reforming reactions, a substrate with a bi-polar plate...
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5993988 |
Composite ceramic powder, method for manufacturing the powder, electrode for solid electrolytic fuel cell, and method for manufacturing the electrode
An object of the present invention is to provide composite ceramic powder containing composite ceramic particulates as constituent particulates. Each of the composite ceramic particulates is...
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5993989 |
Interfacial material for solid oxide fuel cell
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...
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5976721 |
Chemical cogeneration process
A chemical cogeneration process for producing chemical products and cogenerating electrical energy is presented. The process comprises the steps of providing a monolithic mass and energy transfer...
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5961887 |
Composite electrode materials for high energy and high power density energy storage devices
This invention relates to a composite electrode material for use in high rgy and high power density electrochemical capacitors, and to the electrochemical capacitor containing the electrodes. The...
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5958616 |
Membrane and electrode structure for methanol fuel cell
The invention provides devices and techniques for reducing or eliminating fuel crossover from the anode to the cathode in fuel cells using organic fuels. The invention particularly provides proton...
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5954928 |
Activated cathode and method for manufacturing the same
In an activated cathode and a method for manufacturing the activated cathode, a first layer which contains nickel or cobalt as a main component is formed on a metal substrate, and a second layer...
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5955215 |
Bipolar electrode-electrolyte unit
A bipolar electrode-electrolyte unit for an electrochemical cell includes a barrier layer, at least two carrier layers and at least two active layers, and an electrolyte. The active layers comprise...
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5945231 |
Direct liquid-feed fuel cell with membrane electrolyte and manufacturing thereof
An improved direct liquid-feed fuel cell having a solid membrane electrolyte for electrochemical reactions of an organic fuel. Improvements in interfacing of the catalyst layer and the membrane and...
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5939220 |
Catalyst
A novel catalyst comprising a Pt--M alloy wherein M is one or more metals selected from the transition metal elements or from Groups IIIA or IVA of the Periodic Table in "Handbook of Chemistry and...
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5932146 |
Air electrode composition for solid oxide fuel cell
An air electrode composition for a solid oxide fuel cell is disclosed. The air electrode material is based on lanthanum manganite having a perovskite-like crystal structure ABO 3 . The A-site of...
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5928804 |
Fuel cells incorporating magnetic composites having distinct flux properties
Magnetic composites exhibit distinct flux properties due to gradient interfaces. Such composites can be used, for example, to improve fuel cells and batteries and to effect transport and separation...
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5928808 |
Fibrous electrochemical feed cells
The subject invention relates to an electrochemical cell in which a fiber containing electrode, a membrane separator, the electrolyte, the second electrode or electrocatalyst of the second...
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5925477 |
Assembly of single cells to form a diaphragm electrode unit
The invention relates to an assembly of flat single cells consisting of a lid polymer electrolyte and electrode areas applied to both sides thereof into a diaphragm electrode unit in which 2 to...
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5922488 |
Co-tolerant fuel cell electrode
The invention is directed towards a CO-tolerant fuel cell electrode formed from a carbon supported, platinum dispersed, non-stoichiometric hydrogen tungsten bronze electrode catalyst. The electrode...
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5922487 |
Anode electrocatalyst for fuel cell and process of preparing same
Disclosed is an anode electrocatalyst for a fuel cell comprising an alloy essentially consisting of at least one of tin, germanium and molybdenum, and one or more noble metals selected from...
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5919583 |
Membranes containing inorganic fillers and membrane and electrode assemblies and electrochemical cells employing same
Cation exchange membranes, made from polymer having cation exchange groups and containing inorganic filler, exhibit reduced fuel crossover for fuel cells employing direct feed organic fuels such as...
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5916700 |
Lanthanum manganite-based air electrode for solid oxide fuel cells
An air electrode material for a solid oxide fuel cell is disclosed. The electrode material is based on lanthanum manganite having a perovskite-like crystal structure ABO 3 . The A-site of the air...
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5916702 |
CO tolerant platinum-zinc fuel cell electrode
The invention is a composition, comprising: a carbon-supported, dispersed platinum-zinc alloy having the formula Pt-Zn x /C wherein x ranges from greater than 0.05 to less than 1 wherein platinum...
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5908713 |
Sintered electrode for solid oxide fuel cells
A solid oxide fuel cell fuel electrode is produced by a sintering process. An underlayer is applied to the electrolyte of a solid oxide fuel cell in the form of a slurry, which is then dried. An...
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5906716 |
Metallized cation exchange membrane
Metallized cation-exchange membrane The present invention relates to a membrane/electrode composite comprising a membrane comprising a polymeric cation exchanger containing carboxylic acid,...
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5897971 |
Extrudable lanthanum manganite paste, extruded lanthanum manganite body and method of manufacturing porous sintered lanthanum manganite body
For the production of sintered lanthanum manganite bodies, such as tubes for solid oxide fuel cell air electrodes, there is used extrudable lanthanum manganite paste having a pH of not less than 8,...
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5888665 |
LaNi.sub.5 is-based metal hydride electrode in Ni-MH rechargeable cells
An at least ternary metal alloy of the formula AB (Z-Y) X (Y) is disclosed. In this formula, A is selected from the rare earth elements, B is selected from the elements of Groups 8, 9, and 10 of...
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5885729 |
Hydrophilic, graphite fuel cell electrode for use with an ionomer membrane and method of making a fuel cell.
The present invention includes a gas-permeable, hydrophilic, graphite fuel cell electrode for use in conjunction with an ionomer membrane. The fuel cell electrode includes a roughened, interstitial...
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5882810 |
Active layer for membrane electrode assembly
Described is a membrane electrode assembly having an ion exchange membrane, and at least two active layers positioned on the same side of the membrane; wherein the active layers containing...
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5876867 |
Platinum skeleton alloy-supported electrocatalyst, electrode using the electrocatalyst, and process for producing the electrocatalyst
An electrocatalyst comprising an alloy of platinum with a base metal selected from the group consisting of gallium, vanadium, chromium, manganese, iron, cobalt, nickel and copper, having a...
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5873988 |
Multilayer electrode for electrolysis cell
The invention relates to a multilayer electrode with a porous core structure produced by sintering and composed of an electrically conducting material for an electrolysis cell, especially with a...
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5871625 |
Magnetic composites 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...
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5871860 |
Manufacture of electrodes
An electrode suitable for use in fuel cells, for example in solid polymer fuel cells, comprises a non-uniform electrode layer and has improved electrochemical performance.
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5872074 |
Leached nanocrystalline materials process for manufacture of the same, and use thereof in the energetic field
Leached nanocrystalline materials having a high specific surface are particularly useful for storing hydrogen or as catalysts or electrocatalysts in the manufacture electrodes, especially for fuel...
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5868912 |
Electrochemical cell having an oxide growth resistant current distributor
The invention relates to an electrochemical cell which has an electrode, which may be either an anode or a cathode, and a membrane disposed in contact with one side of the electrode. An anode...
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5869416 |
Electrode ink for membrane electrode assembly
A composition comprising (a) catalytically-active particles, (b) an organic compound having a pKa of at least about 18 and a basicity parameter, β, of less than 0.66, and (c) a polymeric binder....
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5866423 |
Measuring method of the specific surface area available for reaction of noble metal catalyst in the electrode of polymer electrolyte membrane fuel cell
A measuring method for determining the specific surface area available for reaction of a noble metal catalyst of an electrode for use in a polymer electrolyte membrane fuel cell. The method...
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5861222 |
Gas diffusion electrode for membrane fuel cells and method of its production
A porous gas diffusion electrode for membrane fuel cells on an ion-conducting polymer. The electrode contains a finely divided electrocatalyst which is dispersed in a proton-conducting ionomer and...
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5856036 |
Single phase ternary Pt-Ru-Os catalysts for direct oxidation fuel cells
A catalyst composition for use in electrochemical reactor devices comprising platinum, ruthenium, and osmium and having a single phase crystal structure comprising a face centered cubic unit cell....
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5846669 |
Hybrid electrolyte system
A hybrid electrolyte system for fuel cells and other electrochemical reactors comprising an acid electrolyte, a base electrolyte, and a proton permeable dense phase separating the acid electrolyte...
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5846670 |
Gas diffusion electrode for electrochemical cell and process of preparing same
Disclosed are a gas diffusion electrode for an electrochemical cell which comprises a catalyst layer formed by binding, by means of poiytotrafluoroethylene, catalyst-supporting carbon black and...
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5830593 |
Rotating electrode fuel cell for vehicle propulsion
A fuel cell system for use in vehicles has a hydrogen electrode assembly, an oxygen electrode assembly, and a body of liquid electrolyte between the hydrogen electrode assembly and the oxygen...
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5817221 |
Composites formed using magnetizable material, a catalyst and an electron conductor
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...
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5795672 |
Diamond-like carbon based electrocatalytic coating for fuel cell electrodes
The present invention provides a low-temperature method for producing electrocatalytic coatings for fuel cell electrodes. The electrocatalytic coating comprises a thin-film of diamond-like carbon...
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5795669 |
Electrode
An electrode comprises a first catalytic component active at gas-phase reaction sites and a second catalytic component active at electrochemical reaction sites wherein each catalytic component is...
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5795670 |
Porous sintered lanthanum manganite bodies and method of manufacturing the same
A porous sintered lanthanum manganite body has an alkali metal content of at least 100 ppm and the alkali metal concentration in the lanthanum manganite crystal grains is higher adjacent the grain...
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5785839 |
Composite structure including a solid electroylte and at least one volume electrode
A composite structure comprising: (i) a solid electrolyte which is an O 2 - anion conductor and essentially impermeable to gases; (ii) a cathode; and (iii) an anode, wherein the cathode...
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