| Patent application number | Description | Published |
|---|
| 20080299424 | CARBON MONOXIDE CLEAN-UP IN A PEM FUEL CELL SYSTEM - A fuel processor system contains an autothermal reactor (ATR) that produces a hydrogen-rich first gas stream containing carbon monoxide. Downstream of the ATR, a pressure swing adsorber produces a second hydrogen-rich gas stream containing 5 ppm carbon monoxide or more. Downstream of the PSA, there is a methanation reactor sized to reduce the CO level of the second stream below 5 ppm. A method of operating of proton exchange membrane fuel cell stack involves cooling the methanator output and feeding it into the stack as an anode fuel. | 12-04-2008 |
| 20090278083 | POLYELECTROLYTE MEMBRANES COMPRISED OF BLENDS OF PFSA AND SULFONATED PFCB POLYMERS - A polymer blend useful as an ion conductor in fuel cells includes a first polymer having a cyclobutyl moiety and a second polymer include a sulfonic acid group. | 11-12-2009 |
| 20100044616 | BLENDS OF LOW EQUIVALENT MOLECULAR WEIGHT PFSA IONOMERS WITH KYNAR 2751 - A polymer blend useful as an ion conductor in fuel cells includes a first polymer that includes a non-ionic segment and a second polymer that includes a sulfonic acid group. | 02-25-2010 |
| 20100047657 | GRADIENT REINFORCED PROTON EXCHANGE MEMBRANE - An ion conducting polymeric structure suitable for fuel cell applications is provided. The polymeric structure comprises a non-homogenous polymeric layer. The non-homogeneous layer is a blend of a first polymer comprising cyclobutyl moiety; and a second polymer having a non-ionic polymer segment. The weight ratio of the first polymer to the second polymer varies as a function of position within the non-homogenous layer. The blend composition may be cast into an electrolyte membrane that can be used to prepare electrochemical cells such as batteries and fuel cells. | 02-25-2010 |
| 20100112405 | USING IONOMER TO MILITATE AGAINST MEMBRANE BUCKLING IN THE TENTING REGION - A unitized electrode assembly for a fuel cell comprising an electrolyte membrane, a subgasket, and a sealing bead disposed therebetween is disclosed. The sealing bead adapted to fill a tenting region formed between the membrane and the subgasket to maximize an operating life of the electrolyte membrane by militating against wear of membrane expansion during use of the fuel cell. | 05-06-2010 |
| 20120122016 | Fuel Cell Durability Through Oxide Supported Precious Metals in Membrane - A fuel cell includes an anode, a cathode, and an ion conducting membrane interposed between the anode and cathode. The ion conducting membrane includes a base layer that has an ion conducting polymer and additive layer that has a metal supported on an oxide support, the oxide support scavenging hydroxyl radicals formed during fuel cell operation. | 05-17-2012 |
| 20120135332 | FUEL CELLS HAVING IMPROVED DURABILITY - A fuel cell or a fuel cell stack component comprises an active area and a non-active area. A peroxide decomposing metal compound or metal alloy is disposed in or on the non-active area of a fuel cell or a fuel cell component. The metal compound or alloy is capable of providing a peroxide decomposing metal species that can migrate from the non-active area to an active area of a fuel cell. A fuel cell or membrane electrode assembly having a peroxide decomposing metal compound or alloy disposed in its non-active area exhibits improved durability. | 05-31-2012 |
| 20120244452 | DIRECT CATALYST COATING ON FREE STANDING MICROPOROUS LAYER - Methods of making reinforced membrane electrode assemblies are described. Catalyst coated free standing microporous layers and reinforced membrane electrode assemblies are also described. | 09-27-2012 |
