Patent application number | Description | Published |
20080286616 | Alloy Catalysts for Extending Life of Fuel Cell Membranes and Ionomer - A membrane electrode assembly includes an anode, a cathode, a membrane disposed between the anode and the cathode, wherein at least one of the anode, cathode and membrane contains a hydrocarbon ionomer, and an electrode catalyst disposed in at least one of the anode and the cathode, wherein the catalyst is a metal alloy catalyst. | 11-20-2008 |
20090061262 | Retaining water in a fuel cell stack for cooling and humidification during frozen startup - A fuel cell power plant ( | 03-05-2009 |
20090169946 | Ultrasonically Welded Fuel Cell Unitized Electrode Assembly - A unitized electrode assembly ( | 07-02-2009 |
20090214906 | Hydrogen passivation shut down system for a fuel cell power plant - The invention is a hydrogen passivation shut down system for a fuel cell power plant ( | 08-27-2009 |
20090325001 | Non-circulating coolant PEM fuel cell power plant with antifreeze back pressure air venting system - A PEM fuel cell ( | 12-31-2009 |
20100086817 | WATER RETENTION AND GAS INGESTION CONTROL FOR A FUEL CELL - A fuel cell includes a water transport plate providing a water flow field. The water flow field includes water having gas. A vent is in fluid communication with the water flow field. The vent includes a membrane that obstructs flow of water past the membrane while permitting the flow of gas past the membrane. The membrane can include a pore size between approximately 0.1μ to 10.0μ, which enables gases to pass through the pores while blocking water. The membrane can be hydrophobic, for example, Teflon, to prevent the passage of water through the membrane. A hydrophobic fluid can also be arranged on the membrane to act as a check valve. | 04-08-2010 |
20100209805 | MEMBRANE ELECTRODE ASSEMBLY HAVING PROTECTIVE BARRIER LAYER AND METHOD FOR MITIGATING MEMBRANE DECAY - A membrane electrode assembly ( | 08-19-2010 |
20110020723 | FUEL CELL PLATE HAVING MULTI-DIRECTIONAL FLOW FIELD - An exemplary fuel cell plate includes a plurality of first flow field channels that have an inlet near one end and an outlet near an opposite end. The first flow field channels establish a plurality of first fluid flow paths from a corresponding inlet to the corresponding outlet. A plurality of second flow field channels have an inlet near one end and an outlet near an opposite end for establishing a plurality of second fluid flow paths from the inlet to the outlet. The direction of fluid flow in the first fluid flow paths is opposite to a direction of fluid flow in the second fluid flow paths. At least some of the second flow field channels are between two of the first flow field channels. | 01-27-2011 |
20110111325 | FUEL CELL DEVICE INCLUDING A POROUS COOLING PLATE ASSEMBLY HAVING A BARRIER LAYER - An exemplary fuel cell device includes porous plates. Electrode assemblies ( | 05-12-2011 |
20110136035 | FUEL CELL USING UV CURABLE SEALANT - A fuel cell is disclosed that includes a cathode, an anode and an electrode assembly, each including lateral surfaces that adjoin one another. The electrode assembly is arranged between the cathode and anode. Each of the cathode, the anode and the electrode assembly include perimeter surfaces transverse to the lateral surfaces that are arranged adjacent to one another. A UV curable sealant is arranged on the perimeter surfaces providing a seal over the lateral surfaces. After the UV curable sealant has been applied to the perimeter surfaces, the sealant is exposed to a UV light source for a desired duration to cure the sealant. Accordingly, the UV curable sealant reduces the complexity of the cell stack assembly and decreases its production time. | 06-09-2011 |
20110318666 | FUEL CELL STACK ASSEMBLY SEAL - A fuel cell is disclosed that includes an electrode assembly arranged between a cathode and an anode. The anode and cathode have lateral surfaces adjoining lateral surface of the electrode assembly and respectively include fuel and oxidant flow fields. Interfacial seals are not arranged between the lateral surfaces. Instead, a sealant is applied to the anode, the cathode and the electrode assembly to fluidly separate the fuel and oxidant flow fields. In one example, the adjoining lateral surfaces are in abutting engagement with one another. The sealant is applied in a liquid, uncured state to perimeter surfaces of the electrode assembly, the anode and the cathode that surround the lateral surfaces. | 12-29-2011 |
20120315558 | HYDROGEN PASSIVATION SHUT DOWN SYSTEM FOR A FUEL CELL POWER PLANT - The invention is a hydrogen passivation shut down system for a fuel cell power plant ( | 12-13-2012 |
20130059230 | CROSS LAMINATED ELECTROCHEMICAL CELL MEMBRANES - A fuel cell proton exchange membrane electrolyte is formed of a first layer ( | 03-07-2013 |
20130224622 | EVAPORATIVELY COOLED FUEL CELLS WITH WATER PASSAGEWAYS ENHANCED BY WICKS - Fuel cells ( | 08-29-2013 |