Matches 351 - 400 out of 841 < 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >
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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....
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...
6716548 Composite electrolyte membranes for fuel cells and methods of making same  
The present invention relates to composite electrolyte membranes for fuel cells and methods of making same. More specifically, the present invention is directed to proton-conducting membranes for...
6706435 Fuel cell with polymer electrolyte membrane  
A fuel cell includes at least one cell that contains a proton-conducting polymer electrolyte membrane, which separates an anode compartment and a cathode compartment. The membrane is comprised of a...
6703153 Ceramic composite electrolytic device  
An electrical power generating device having a plurality of ceramic composite cells, each cell having a cathode and an anode. A thermal shell in which the ceramic composite cells are stacked or...
6703154 Solid oxide fuel cell compression bellows  
A compression device for use with a solid oxide fuel cell stack is formed from a hermetically sealed cylindrical shell filled with an expansion fluid such as air. The shell has a corrugated...
6696190 Fuel cell system and method  
Fuel cells, fuel cell systems and methods of operating same are disclosed.
6692855 Solid electrolyte type fuel cell and method of producing the same  
A solid electrolyte fuel cell comprising an air electrode, a solid electrolyte film, a fuel electrode, and an interconnector, wherein a ceramics layer which is tight in a certain degree and has a...
6692858 Electrolyte membrane for polymer electrolyte fuel cell and producing method thereof  
A method for producing an electrolyte membrane for a polymer electrolyte fuel cell, which comprises forming into a membrane a mixture of a perfluorocarbon polymer having sulfonic acid groups or...
6692857 Process for the production of a composite membrane  
Process for the production of a composite membrane comprising a porous film of a first polymer, the pores of which contain a second polymer, by depositing the second polymer from a solution in the...
6689439 Micro-stud diffusion substrate for use in fuel cells  
The present invention is directed to a diffusion substrate assembly that is suitable for use in fuel cells. The diffusion substrate exhibits low flow resistance for active fuel agents and...
6689501 Composite ion exchange membrane for use in a fuel cell  
A composite membrane for use in a fuel cell membrane electrode assembly comprises a porous polymeric substrate and an impregnant partially filling the substrate such that the substrate comprises a...
6686075 Process for producing electrical energy with the aid of a fuel cell  
A process for producing electrical energy with the aid of a fuel cell, which includes the steps of reforming an organic fuel, removing carbon monoxide from the reformate, and reacting the hydrogen...
6685806 Membrane electrode assembly and method of its production  
Membrane-electrode assembly consisting of a cationic exchange membrane which contains fluorine (made of hydrolyzed copolymer of tetrafluoro-ethylene and vinyl ether which contains perfluorosulfur...
6682842 Composite electrode/electrolyte structure  
Provided is an electrode fabricated from highly electronically conductive materials such as metals, metal alloys, or electronically conductive ceramics. The electronic conductivity of the electrode...
6677068 CATALYST FOR SELECTIVE OXIDATION OF CARBON MONOXIDE PRESENT IN HYDROGEN-CONTAINING GASES, AND ELIMINATION OF CARBON MONOXIDE AND SOLID POLYMER ELECTROLYTE FUEL CELL SYSTEM WHICH MAKE USE OF THE CATALYST  
A catalyst for selective oxidation of carbon monoxide present in a hydrogen-containing gas is provided in which the catalyst comprises ruthenium supported on an alumina hydrate. This catalyst has a...
6673130 Method of fabrication of electrodes and electrolytes  
Fuel cell stacks contain an electrolyte layer surrounded on top and bottom by an electrode layer. Porous electrodes are prepared which enable fuel and oxidant to easily flow to the respective...
6667126 High temperature fuel cell  
A high temperature fuel cell has a cathode which comprises at least a first layer and a second layer disposed on one side of the first layer, in which the first layer contains 30 to 60% by weight...
6663994 Fuel cell with convoluted MEA  
A proton exchange membrane fuel cell including a membrane electrode assembly comprising a proton transmissive membrane, a catalytic anode layer on one face of the membrane, and a catalytic cathode...
6653009 Solid oxide fuel cells and interconnectors  
Solid oxide fuel cells made by coating a slurry of an electrolyte having a limited amount of organic material onto a carrier tape, depositing a one or two layer electrode material on the tape...
6649300 Electrode catalyst and electrochemical devices using the same  
An electrode catalyst for fuel cells which comprises a conductive carbon, platinum supported on the conductive carbon in an amount of from 20% by mass to 70% by mass based on the mass of the...
6649289 Fuel cell power supply system  
A power supply system for enhancing the economic viability of different modes of transportation that incorporate fuel cells to generate electricity. For example, the power supply system of the...
6649295 Membrane electrode assembly having annealed polymer electrolyte membrane  
A membrane electrode assembly (MEA) is provided which comprises an annealed polymer electrolyte membrane (PEM). Additionally, the MEA may include annealed catalyst layers annealed in contact with...
6638659 Membrane electrode assemblies using ionic composite membranes  
A membrane electrode assembly comprising a composite membrane having a first major surface area and a second major surface area comprising a porous polymeric matrix containing ionically conductive...
6635384 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...
6635377 Electrochemical device and method for operation thereof  
An electrochemical device (or a fuel cell) which comprises a negative electrode, a positive electrode, and a proton conducting portion held between these two electrodes, said proton conducting...
6635376 Solid oxide fuel cell having composition gradient between electrode and electrolyte  
A solid oxide fuel cell and method of making same is disclosed. An electrolyte layer of an oxide ion conductor material that may be specified by La 1−a A a Ga 1−(b+c)B b Co c O 3 and an air...
6632557 Cathodes for metal air electrochemical cells  
A textured dual layer metal air cathode is disclosed. The cathode includes a first layer that contains 30% to 70% organic polymer by weight, a second layer that contains 10% to 30% organic polymer...
6630265 Composite electrolyte for fuel cells  
An inexpensive composite electrolyte for use in electrochemical fuel cells includes (i) an inorganic cation exchange material, (i) a silica-based binder; and (ii) a polymer-based binder. The cation...
6630263 Fuel cell systems and methods  
Fuel cell systems and methods having relatively long use lifetimes are disclosed. The systems and methods can provide relatively long lifetimes when one or more reactant gas streams is unsaturated...
6620540 Fuel cell stack  
The fuel cell stack has a horizontal laminate of a plurality of fuel cell units and separators, each fuel cell unit being constituted by an electrolytic membrane sandwiched by an anode and a...
6613203 Ion conducting membrane having high hardness and dimensional stability  
An integral composite membrane comprised of an expanded polytetrafluoroethylene having a morphological structure comprising a microstructure of very highly elongated nodes interconnected by fibrils...
6607856 Solid polymer electrolyte having high-durability  
In solid polymer electrolyte having high-durability, comprising a polymer electrolyte material having a hydrocarbon part, a chelate group and an electrolyte group are introduced into the polymer...
6605381 Polymer-electrolyte membrane fuel cell  
Not all gas diffusion structures known to date can guarantee water balance compensation in the fuel cell, protection against drying and prevention of water deposits while simultaneously ensuring...
6605377 Fuel cell cooling apparatus and fuel cell system  
A cooling apparatus for a fuel cell system having high cooling efficiency. The cooling apparatus includes a chemical heat pump circuit using isopropyl alcohol, acetone, and hydrogen gas as a heat...
6602630 Membrane electrode assemblies for electrochemical cells  
6596422 Air breathing direct methanol fuel cell  
A method for activating a membrane electrode assembly for a direct methanol fuel cell is disclosed. The method comprises operating the fuel cell with humidified hydrogen as the fuel followed by...
6593021 Fuel cell separator and fuel cell of solid polymer type  
Fuel cell separators having on one side or both sides thereof channels for gas supply and discharge, which channels are formed from compositions composed mainly of thermosetting resin and graphite...
6592965 Ductile ceramic composite electrolyte  
A ductile, solid electrolyte composite comprising a continuous, ordered, repeating ductile metallic array surrounded by and supporting an ionically conductive ceramic matrix such as stabilized...
6582845 Solid oxide electrolyte, fuel cell module, and method  
Flexible ceramic sheets with enhanced strain tolerance for electrochemical applications such as solid oxide fuel cell electrolytes incorporate a surface indentation pattern providing a strain...
6562446 Multi-layer polymer electrolyte-membrane, electrochemical apparatus and process for the preparation of multi-layer polymer electrolyte membrane  
A multi-layer polymer electrolyte membrane having a polymer electrolyte layer and a porous polymer electrolyte layer with three dimensional network pores on the former polymer electrolyte layer is...
6562747 Gas sensor electrolyte  
The electrolyte comprises up to about 80 wt % zirconia, up to about 30 wt % stabilizer, and up to about 40 wt % dopant-zirconia. Alternatively, the electrolyte can comprise zirconia having a phase...
6558831 Integrated SOFC  
A solid oxide fuel cell comprises an anode, a cathode opposite to the anode, and an electrolyte between the anode and cathode. The electrolyte includes a barrier layer that prevents chemical...
6541147 Printed circuit board separator for an electrochemical fuel cell  
A proton exchange membrane (PEM)-type fuel cell is formed from layered undulate MEA structures and separator plates alternating with each other in the stack dimension so that each layered MEA...
6531240 Gas diffusion substrates  
A novel gas diffusion substrate comprising a porous structure and a filler material, characterised in that the filler material comprises a base filler material which is electrically conducting and...
6523699 Sulfonic acid group-containing polyvinyl alcohol, solid polymer electrolyte, composite polymer membrane, method for producing the same and electrode  
Sulfonic acid group-containing polyvinyl alcohol having crosslinked structures, which is obtained by heat treating a mixed solution of polyvinyl alcohol, a sulfonating agent and a crosslinking...
6517693 Ion conductor  
The invention presents an ion conductor with high reliability, that is one of the following perovskite oxides: {circle around (1)} perovskite oxide of the composition BaZr 1-x Ce x O 3-p ...
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...
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...
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....
Matches 351 - 400 out of 841 < 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >