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7547733 |
Composite proton exchange membrane
An organic/inorganic composite proton exchange membrane (PEM) is disclosed. The PEM includes a proton exchange membrane and a particulate inorganic conductor filler material provided in the proton...
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7547484 |
Solid oxide fuel cell tube with internal fuel processing
A solid oxide fuel cell comprises a tube forming an anode, electrolyte and cathode, and a catalytic substrate is positioned within the tube. Such solid oxide fuel cells are highly compact and...
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7544437 |
Fuel cell structure
An improved fuel cell structure uses a first sheet of carbon fibres separated by an electrolyte from a second sheet of carbon fibres. A fuel cell catalyst is coated on the outside of the fibres and...
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7544433 |
Electrode structure for polymer electrolyte fuel cells, and polymer electrolyte fuel cell using the same
The present invention provides an electrode structure for polymer electrolyte fuel cells, inexpensive, and exhibiting excellent power production capacity and durability even under high...
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7544435 |
Electrochemical cell systems comprising fuel consuming agents
Electrochemical cell systems are provided. In some implementations, the electrochemical cell system includes a fuel cell and a fuel cartridge connected to the fuel cell. The fuel cell includes (i)...
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7541016 |
Lithium titanate and method of forming the same
A lithium titanate has the following formula:
Li 4 Ti 5 O 12−x
wherein x...
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7541109 |
Passive water management techniques in direct methanol fuel cells
Passive water management techniques are provided in an air-breathing direct oxidation fuel cell system. A highly hydrophobic component with sub-micrometer wide pores is laminated to the catalyzed...
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7537858 |
Catalyst structure and fuel cell having the same
The present invention provides a catalyst structure of high catalytic activity and a fuel cell of high cell output. The catalyst structure comprises a conductive film and catalyst particles formed...
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7537857 |
Reduced degradation of ion-exchange membranes in electrochemical fuel cells
A significant problem in PEM fuel cell durability is in premature failure of the ion-exchange membrane and in particular by the degradation of the ion-exchange membrane by reactive hydrogen...
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7534513 |
Membrane electrode assembly for a tube-shaped fuel cell and tube-shaped fuel cell
A membrane electrode assembly ( 11 ) for a tube-shaped fuel cell, which is provided with a tube-shaped solid electrolyte membrane ( 1 ); an outside catalyst electrode layer ( 2 ) formed on an outer...
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7534524 |
Methanol fuel cells
A cathode for a liquid fuel cell, which is covered with a film that is a liquid fuel barrier, but is permeable to oxygen, or for a direct methanol fuel cell, which is covered with a film that is a...
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7524576 |
High-lithium electrolyte for use in molten carbonate fuel cells and method for making same
A high-lithium carbonate electrolyte formed from a eutectic carbonate mixture including lithium carbonate and from an additional lithium-containing component adapted to form lithium carbonate...
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7521141 |
Innovative method for the preparation of proton conducting nanopolymeric membranes for use in fuel cells or in catalytic membrane reactors
The invention is based on the preparation of an organic solution of preferably phosphonic acids and tetravalent metals salts, preferably of Zr, Ti, Sn and Ce, in organic solvents, which behaves as...
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7507687 |
Electrocatalyst powders, methods for producing powder 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...
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7507494 |
Extended catalyzed layer for minimizing cross-over oxygen and consuming peroxide
A membrane electrode assembly includes an anode, a cathode, a membrane disposed between the anode and the cathode, and an extended catalyzed layer between the cathode and the membrane, the extended...
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7498286 |
Electrocatalyst for oxygen reduction reaction in proton exchange membrane fuel cells
The present invention includes an apparatus, system and method for screening and making one or more electrocatalysts, electrocatalyst arrays, electrodes and catalysts for an oxygen reduction...
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7494739 |
Fuel cell
A fuel cell. The anode of the fuel cell comprises a hydrogen oxidation catalyst comprising a finely divided metal alloy particulate. The metal alloy particulate has an average particle size of less...
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7491454 |
All-in-one type hybrid fuel cell system
A hybrid fuel cell system includes a fuel supply unit for supplying a fuel containing hydrogen, an oxygen supply unit for supplying oxygen, at least one electricity generation unit for generating...
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7485390 |
Combinatorial methods for preparing electrocatalysts
The present invention is directed to a method for forming combinatorial libraries comprising arrays of materials prepared by depositing a metal species on a support for use as catalysts, such as...
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7485385 |
Process for solid oxide fuel cell manufacture
The present invention provides a method for conveniently manufacturing a solid oxide fuel cell (SOFC) at a cost that is less than five-hundred dollars per kilowatt of electricity. The method...
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7485211 |
Electro-catalysts for the oxidation of ammonia in alkaline media
An electro-catalyst for the oxidation of ammonia in alkaline media; the electrocatalyst being a noble metal co-deposited on a support with one or more other metals that are active to ammonia...
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7482072 |
Optimizing reactions in fuel cells and electrochemical reactions
This invention relates to novel methods for affecting, controlling and/or directing various reactions and/or reaction pathways or systems by exposing one or more components in a fuel cell reaction...
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7482089 |
Fuel cell
A fuel cell is provided having a positive electrode layer ( 13 ) and a negative electrode layer ( 14 ) disposed on the front and rear sides of an electrolyte membrane ( 12 ), for generating...
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7479469 |
Electrode catalyst fine particles, dispersion of the same, and process for producing the dispersion
Provided is a process for producing electrode catalyst fine particles capable of affording formed catalysts such as membranes excellent in uniformity and strength and also employable as catalyst to...
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7479343 |
Platinum-indium-iron/tungsten/manganese fuel cell electrocatalyst
A fuel cell electrocatalyst that contains platinum, indium, and at least one of tungsten, iron, and manganese.
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7476459 |
Membrane electrode assembly and fuel cell
A membrane electrode assembly includes an anode, a cathode, and a solid polymer electrolyte membrane interposed between the anode and the cathode. The anode and the cathode include gas diffusion...
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7476460 |
Thin metal oxide film and method of making the same
A thin metal oxide film includes a solution of one or more metal salts and one or more water soluble polymers. A mechanism is provided for converting the metal salt(s) and water soluble polymer(s)...
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7473485 |
Extended electrodes for PEM fuel cell applications
A membrane electrode assembly includes an anode; a cathode; a membrane disposed between the anode and the cathode; and an extended catalyzed layer between the membrane and at least one electrode of...
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7468340 |
Metal-supported porous carbon film, fuel cell electrode and fuel cell employing the electrode
A metal-supported porous carbon film wherein metal fine particles with a mean particle diameter of 0.7-20 nm are dispersed and supported on pore surface walls, fuel cell electrodes employing the...
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7468218 |
Composite solid oxide fuel cell anode based on ceria and strontium titanate
An anode and method of making the same wherein the anode consists of two separate phases, one consisting of a doped strontium titanate phase and one consisting of a doped cerium oxide phase. The...
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7465514 |
Electrochemical energy source and electronic device incorporating such an energy source
The invention relates to an electrochemical energy source comprising at least one fuel cell, which fuel cell comprises: a first current collector coupled to a negative electrode, a fuel source...
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7462575 |
Catalyst powder, catalyst electrode, and electrochemical device
Disclosed is a catalyst powder contained in an electrode, wherein the catalyst powder includes a catalytic substance supported on a conductive powder, the catalytic substance being comprised of at...
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7455927 |
Intermetallic compounds for use as catalysts and catalytic systems
The invention is directed to intermetallic compounds for use as catalysts for chemical reactions and catalytic systems. The structure of ordered intermetallic compounds enables such compounds to...
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7455925 |
Thin-layer fuel cell structure
A fuel cell layer and methods for making a fuel cell layer comprising at least one fuel cell in communication with first reactant plenum and second reactant plenum, wherein one of the reactant...
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7438837 |
Method of producing solid electrolyte and solid electrolyte
A method of producing a solid electrolyte (3, 13) is disclosed wherein solid electrolyte material is prepared having a composition expressed by a formula: (1-x) ZrO 2 {xSc 2 O 3 (where x is a...
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7435490 |
Oxygen getters for anode protection in a solid-oxide fuel cell stack
In a fuel cell assembly, nickel-based anodes are readily oxidized when exposed to oxygen as may happen through atmospheric invasion of the assembly during cool-down following shutdown of the...
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7432006 |
Electrochemical probe for screening multiple-cell arrays
Novel systems for combinatorially screening an array of electrochemical cells are disclosed. The screening aparatus may comprise a system of electrodes and electrolytes common to each of the...
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7429429 |
Fuel cell with thermal conductance of cathode greater than anode
In a fuel cell for a fuel cell power plant having a PEM ( 9 ), a cathode comprising at least a catalyst ( 10 ) and a support substrate ( 17 ), possibly with a diffusion layer ( 16 ), on one side of...
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7427448 |
Portable device, case for portable device, and fuel cell structure
A fuel cell is disposed inside a camera housing in the vicinity of a front panel, an upper panel, and a side panel in parallel with the respective panels. The invention provides broader cell area...
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7422813 |
Fuel cell systems comprising microfibrous fuel cell elements and methods of making and using same
Fuel cells having microfibrous hollow membrane separators with fiber-reinforced ion exchange polymeric membrane walls. The reinforcing fibers are continuous and extend along directions which are...
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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...
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7419738 |
Module for a fuel cell arrangement comprising plates joined by a seal
A module for a fuel cell arrangement having several stacked plates. At least two of the plates have a common seal element of polymer material which is injected onto the plates and by which the...
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7419732 |
Method for reducing degradation in a fuel cell
The invention is a method of reducing catalyst dissolution in the cathode of a membrane electrode assembly fuel cell, the method comprising the steps of: (a) preparing a membrane electrode assembly...
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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...
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7419740 |
Membrane electrode unit for polymer electrolyte fuel cells and a process for the production thereof
A membrane electrode assembly for polymer electrolyte fuel cells consisting of a polymer electrolyte membrane, both faces of which are in contact with porous reaction layers and gas distributor...
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7416579 |
Preparing nanosize platinum-titanium alloys
Nanometer sized particles containing titanium and platinum are prepared by a sonochemical process. Compounds of the metals are dissolved, suspended, or diluted in a low vapor pressure liquid...
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7416809 |
Catalyst materials for fuel cells
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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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...
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7413687 |
Low temperature proton conducting oxide devices
A device for conducting protons at a temperature below 550° C. includes a LAMOX ceramic body characterized by an alpha crystalline structure.
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7410718 |
Aerogel and xerogel composites for use as carbon anodes
Disclosed herein are aerogel and xerogel composite materials suitable for use as anodes in fuel cells and batteries. Precursors to the aerogel and xerogel compounds are infused with inorganic...
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