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6517963 |
Carbon monoxide filter
A fuel cell system includes a fuel cell having an electrode, and an electrochemical cell having a device. The electrochemical cell includes a cathode, an anode in fluid communication with the...
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6492449 |
Polymers obtained from monomers allowing a sequential polymerization, and their use for preparing ionic conductors
The present invention concerns polymers obtained by anionic initiation and bearing functions that can be activated by cationic initiations that are not reactive in the presence of anionic...
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6492047 |
Fuel cell with proton conducting membrane
The present invention provides improved, low-cost fuel cells having reduced fuel crossover, reduced sensitivity to metal ion impurities and ability to operate under a broad range of temperatures....
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6485622 |
Lithium ion conductive glass-ceramics and electric cells and gas sensors using the same
Lithium ion conductive glass-ceramics comprise in mol %: P 2 O 5 30-45% SiO 2 0-15% GeO 2 + TiO 2 25-50% in which GeO 2 0-50% TiO 2 0-50% ZrO 2 0-8% M 2 O 3 0<-10% where M is an element or...
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6479179 |
Source of electrical power for an electric vehicle and other purposes, and related methods
Microthin sheet technology is disclosed by which superior batteries are constructed which, among other things, accommodate the requirements for high load rapid discharge and recharge, mandated by...
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6475657 |
Ceramic membrane which is in an oxide ion conductor based on yttrium-stabilized zirconia
A ceramic membrane having a non-zero volume and including: a) a dense layer, having opposed faces of areas S and S′ and having a non-zero thickness e, of a solid electrolyte; b) two porous...
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6468684 |
Proton conducting membrane using a solid acid
A solid acid material is used as a proton conducting membrane in an electrochemical device. The solid acid material can be one of a plurality of different kinds of materials. A binder can be added,...
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6465120 |
Composite polymer membrane, method for producing the same and solid polymer electrolyte membrane
A solid polymer electrolyte membrane excellent in proton conductivity and methanol barrier property, which is composed of a composite membrane obtained by allowing aniline to be adsorbed by a...
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6465136 |
Membranes, membrane electrode assemblies and fuel cells employing same, and process for preparing
A composite membrane structure is disclosed comprising a composite membrane and at least one protective layer disposed adjacent to the composite membrane. The composite membrane comprises a porous...
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6454922 |
Corrosion test cell for bipolar plates
A corrosion test cell for evaluating corrosion resistance in fuel cell bipolar plates is described. The cell has a transparent or translucent cell body having a pair of identical cell body members...
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6447944 |
Solid electrolyte, method of producing same and fuel cell using same
A solid electrolyte used in a cell and represented by the following formula: La (1−x−y) Ln x A y Ga (1−z) B z O 3−0.5(x+y+z) where Ln is at least one element selected from the group...
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6444341 |
Polymer electrolyte membrane assembly for fuel cells
An electrolyte membrane for use in a fuel cell can contain sulfonated polyphenylether sulfones. The membrane can contain a first sulfonated polyphenylether sulfone and a second sulfonated...
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6444343 |
Polymer electrolyte membranes for use in fuel cells
A polymer electrolyte membrane composed of polystyrene sulfonic acid (PSSA) crosslinked within a poly(vinylidene fluoride) (PVDF) matrix is provided. This membrane exhibits low methanol crossover...
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6436566 |
Fuel cell and polymer electrolyte membrane
A fuel cells stack of the present invention includes a plurality of unit cells, which are laid one upon another. Each unit cell has a hydrogen electrode and an oxygen electrode, which are disposed...
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6432565 |
Producing electrical energy from natural gas using a solid oxide fuel cell
A process of generating electricity from natural gas comprises supplying air to the cathode side of a solid oxide fuel cell; converting at the anode side of the fuel cell the natural gas to...
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6428920 |
Roughened electrolyte interface layer for solid oxide fuel cells
The present invention relates to an electrolyte structure coated on at least one surface with a roughened interfacial nano-crystalline layer. Another aspect of the present invention is a solid...
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6425993 |
Membrane electrode assembly and method of its manufacture
A method is provided for making a membrane electrode that employs a composite membrane, which include both a porous membrane and an ion conducting electrolyte, by partially filling a porous...
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6416898 |
Fuel cell comprising an inorganic glass layer
The invention provides a fuel cell in which humidification control for maintaining adequate moisture in electrolyte membranes can be simplified. The fuel cell according to the invention is provided...
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6403245 |
Materials and processes for providing fuel cells and active membranes
The materials and processes for forming fuel cell electrodes can include substrates of codeposited materials including an electrically conductive material, such as graphite, a polymer film, such as...
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6387560 |
Nanostructured solid electrolytes and devices
Ion conducting solid electrolytes are constructed from nanoscale precursor material. Nanocrystalline powders are pressed into disc structures and sintered to the appropriate degree of...
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RE37701 |
Integral composite membrane
A composite membrane is provided which includes a base material and an ion exchange resin. The base material has a microstructure characterized by nodes interconnected by fibrils, or a...
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6387559 |
Direct methanol fuel cell system 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...
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6387230 |
Composite membrane suitable for use in electrochemical devices
The invention relates to novel inorganic-organic composite membranes especially useful as ionically conducting in electrochemical devices. The composites consist of a polymeric matrix, which may or...
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6379832 |
Base tube for fuel cell and material for base tube
The present invention discloses a base tube for a fuel cell produced by forming a film of a fuel electrode and a film of an air electrode on a surface of the base tube, the base tube comprising a...
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6376118 |
Fuel cell having an electrode with gas-permeable pores
A fuel cell includes two electrodes of different polarity. A proton-conducting membrane electrolyte is disposed between the two electrodes. At least one of the electrodes has a gas-side surface and...
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RE37656 |
Electrode apparatus containing an integral composite membrane
A composite membrane is provided which includes a base material and an ion exchange resin. The base material has a microstructure characterized by nodes interconnected by fibrils, or a...
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6372375 |
Ceramic fuel cell
A honeycomb ceramic fuel cell is provided including, among other things, (i) an yttria stabilized bismuth oxide oxygen ion conductive ceramic with zirconia incorporated therein, (ii) a niobia...
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6365294 |
Sulfonated polyphosphazenes for proton-exchange membrane fuel cells
The subject matter of this invention deals with sulfonated polyphosphazene-based cation-exchange membranes for proton-exchange membrane fuel cells where the polyphosphazene is crosslinked,...
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6355149 |
Method for producing a membrane used to operate fuel cells and electrolyzers
Membranes for use in polymer electrolyte fuel cells or electrolyzers comprise a sulfonated aromatic polyether ether ketone of the formula (I) wherein the ion exchange equivalent (I.E.C.) of the...
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6332964 |
Multi-phase solid ion and electron conducting membrane with low volume percentage electron conducting phase and methods for fabricating
A multi-phase solid electrolyte ion transport membrane comprising at least two phases wherein one of the phases comprises an oxygen ion single conductive material. The other phase comprises an...
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6326098 |
Electrocatalyst, and electrodes, membrane-electrode assembly and solid polymer electrolyte fuel cells, using said electrocatalyst
There are provided an electrocatalyst having an excellent poisoning resistance to carbon monoxide for use in solid polymer electrolyte fuel cells, an electrode, a membrane-electrode assembly, and a...
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6309769 |
Carbon monoxide filter layer
A carbon monoxide filter layer that can be used, for example, in an electrode unit, a fuel cell, and/or a fuel cell stack is disclosed.
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6309772 |
Membrane-electrode unit for polymer electrolyte fuel cells and processes for their preparation
A membrane-electrode unit for polymer-electrolyte fuel cells. The membrane-electrode unit consists of a polymer electrolyte membrane and porous reaction layers applied to both sides comprising a...
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6306536 |
Method of reducing fuel cell performance degradation of an electrode comprising porous components
An improved method reduces fuel cell performance degradation of an electrode comprising porous components. Electrochemical solid polymer electrolyte fuel cells typically have present therein a...
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6306535 |
Molten carbonate fuel cell
A binder layer is formed on a surface of ceramic powder. This ceramic powder is formed into a sheet to form a sheet for an electrolyte plate of a molten carbonate fuel cell, to which a carbonate...
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6291092 |
Sealing frits
These sealing glass frits are a class of frits that seal in the intermediate temperature range of 600°-800° C. The frits are based on high strain point/high CTE alkali-zinc-silicate glass...
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6291091 |
Continuous method for manufacturing a Laminated electrolyte and electrode assembly
A continuous method manufactures a laminated electrolyte and electrode assembly ("laminated assembly") comprising at least one pre-formed electrode layer, at least one catalyst layer and at least...
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6277512 |
Polymer electrolyte membranes from mixed dispersions
A polymer electrolyte membrane is provided comprising an intimate mixture of an ionomeric polymer and a structural film-forming polymer. A method of making the polymer electrolyte membrane is also...
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6277510 |
Porous electrode used for conductive material-filled polymer composite
The present invention provides a porous electrode used for a conductive material-filled polymer composite. At least one surface of the porous electrode is an open porous structure, which includes a...
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RE37307 |
Ultra-thin integral composite membrane
An ultra-thin composite membrane is provided which includes a base material and an ion exchange resin. The base material is a membrane which is defined by a thickness of less than 1 mil (0.025 mm)...
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6268077 |
Portable fuel cell power supply
The invention provides a device for generating energy, utilizing a fuel cell. Air is freely guided to the fuel cell, while a fuel gas is provided to the fuel cell from a pressurized fuel supply via...
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6264857 |
Proton conductors which are thermally stable over a wide range and have good proton conductivities
Proton conductors comprising from 1 to 99% by weight of an acid and from 99 to 1% by weight of a nonaqueous amphoteric material which are thermally stable from -50° C. to 400° C. and have a...
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RE37284 |
Corrosion resistant PEM fuel cell
The present invention contemplates a PEM fuel cell having electrical contact elements (including bipolar plates/septums) comprising a titanium nitride coated light weight metal (e.g., Al or Ti)...
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6261711 |
Sealing system for fuel cells
A fluid seal for a fuel cell includes a compressible member on a first fluid flow plate and a gasket disposed within a groove on a second fluid flow plate. The compressible member conforms to a...
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6248465 |
Complex oxide ceramic sintered body and solid-electrolyte fuel cell comprising the same
A complex oxide ceramic sintered body has a perovskite-type crystal structure and is represented by a general formula: (La 1 -x Sr x ) a (Cr 1 -y-z Al y Co z ) b O 3 , where x+z≥0.06;...
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6248468 |
Fuel electrode containing pre-sintered nickel/zirconia for a solid oxide fuel cell
A fuel cell structure (2) is provided, having a pre-sintered nickel-zirconia fuel electrode (6) and an air electrode (4), with a ceramic electrolyte (5) disposed between the electrodes, where the...
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6242135 |
Solid electrolyte composite for electrochemical reaction apparatus
A solid polymer electrolyte composite for an electrochemical reaction apparatus that possesses satisfactory ion conduction properties and has excellent mechanical strength and heat resistance, is...
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6242122 |
Fuel cell electrode-electrolyte unit
An electrode-electrolyte unit for a fuel cell which prevents the permeation of the fuel used or the permeation of water through the electrolyte layer. An electrolyte is subdivided into two...
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6242123 |
Solid polyelectrolyte membrane for fuel cells, and method for producing it
A solid polyelectrolyte membrane for a fuel cell, comprises a synthetic resin comprising main chains and side chains, the main chains having a copolymer structure of a first olefin hydrocarbon and...
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6228521 |
High power density solid oxide fuel cell having a graded anode
The present invention concerns a high power density solid oxide fuel cell having a cathode, electrolyte and graded porous anode. The graded porosity of the anode allows easy transport of fuel gases...
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