Patent application number | Description | Published |
20090169946 | Ultrasonically Welded Fuel Cell Unitized Electrode Assembly - A unitized electrode assembly ( | 07-02-2009 |
20110097639 | Fuel cell coolant bubble control - To mitigate bubble blockage in water passageways ( | 04-28-2011 |
20110244340 | MEMBRANE ELECTRODE ASSEMBLIES WITH HYDROGEN PEROXIDE DECOMPOSITION CATALYST - A membrane electrode assembly includes an anode including a hydrogen oxidation catalyst; a cathode; a membrane disposed between the anode and the cathode; and a peroxide decomposition catalyst positioned in at least one position selected from the group consisting of a layer between the anode and the membrane and a layer between the cathode and the membrane wherein the peroxide decomposition catalyst has selectivity when exposed to hydrogen peroxide toward reactions which form benign products from the hydrogen peroxide. The peroxide decomposition catalyst can also be positioned within the membrane. Also disclosed is a power-generating fuel cell system including such a membrane electrode assembly, and a process for operating such a fuel cell system. The assembly components contain ionomer material which can be perfluorinated or non-perfluorinated, high temperature, hydrocarbon, and the like. | 10-06-2011 |
20120267234 | Nanostructures, Systems, and Methods for Photocatalysis - The present invention generally relates to nanostructures and compositions comprising nanostructures, methods of making and using the nanostructures, and related systems. In some embodiments, a nanostructure comprises a first region and a second region, wherein a first photocatalytic reaction (e.g., an oxidation reaction) can be carried out at the first region and a second photocatalytic reaction (e.g., a reduction reaction) can be carried out at the second region. In some cases, the first photocatalytic reaction is the formation of oxygen gas from water and the second photocatalytic reaction is the formation of hydrogen gas from water. In some embodiments, a nanostructure comprises at least one semiconductor material, and, in some cases, at least one catalytic material and/or at least one photosensitizing agent. | 10-25-2012 |
20140014254 | Method of Preparing a Fuel Cell Unitized Electrode Assembly by Ultrasonic Welding - A unitized electrode assembly ( | 01-16-2014 |
20140028260 | AQUEOUS REDOX FLOW BATTERIES COMPRISING METAL LIGAND COORDINATION COMPOUNDS - This invention is directed to aqueous redox flow batteries comprising redox-active metal ligand coordination compounds. The compounds and configurations described herein enable flow batteries with performance and cost parameters that represent a significant improvement over that previous known in the art. | 01-30-2014 |
20140028261 | Electrochemical Energy Storage Systems and Methods Featuring Large Negative Half-Cell Potentials - The invention concerns flow batteries comprising: a first half-cell comprising: (i) a first aqueous electrolyte comprising a first redox active material; and a first carbon electrode in contact with the first aqueous electrolyte; (ii) a second half-cell comprising: a second aqueous electrolyte comprising a second redox active material; and a second carbon electrode in contact with the second aqueous electrolyte; and (iii) a separator disposed between the first half-cell and the second half-cell; the first half-cell having a half-cell potential equal to or more negative than about −0.3 V with respect to a reversible hydrogen electrode; and the first aqueous electrolyte having a pH in a range of from about 8 to about 13, wherein the flow battery is capable of operating or is operating at a current density at least about 25 mA/cm | 01-30-2014 |
20140030573 | AQUEOUS REDOX FLOW BATTERIES FEATURING IMPROVED CELL DESIGN CHARACTERISTICS - This invention is directed to aqueous redox flow batteries comprising ionically charged redox active materials and separators, wherein the separator is less than about 100 microns and the flow battery is capable of operating with high energy densities and voltage efficiencies. | 01-30-2014 |
20140030631 | Electrochemical Energy Storage Systems and Methods Featuring Optimal Membrane Systems - This invention is directed to aqueous redox flow batteries comprising ionically charged redox active materials and separators, wherein the separator is about 100 microns or less and the flow battery is capable of (a) operating with a current efficiency of at least 85% with a current density of at least about 100 mA/cm | 01-30-2014 |
20140051002 | AQUEOUS REDOX FLOW BATTERIES COMPRISING MATCHED IONOMER MEMBRANES - This invention is directed to aqueous redox flow batteries comprising ionically charged redox active materials and ionomer membranes, wherein the charge of the redox active materials is of the same sign as that of the ionomer, so as to confer specific improvements. | 02-20-2014 |
20140080035 | Electrochemical Energy Storage Systems and Methods Featuring High Open Circuit Potential - The invention concerns flow batteries comprising: a first aqueous electrolyte comprising a first redox active material; a second aqueous electrolyte comprising a second redox active material; a first electrode in contact with the first aqueous electrolyte; a second electrode in contact with the second aqueous electrolyte and a separator disposed between the first aqueous electrolyte and the second aqueous electrolyte; the flow battery having an open circuit potential of at least 1.4 V, and is capable of operating or is operating at a current density at least about 50 mA/cm | 03-20-2014 |