Patent application number | Description | Published |
20100183804 | Methods of making membrane electrode assemblies - Method of making a membrane electrode assembly comprising: providing a membrane comprising a perfluorinated sulfonic acid; providing a first transfer substrate; applying to a surface of the first transfer substrate a first ink, said first ink comprising an ionomer and a catalyst; applying to the first ink a suitable non-aqueous swelling agent; forming an assembly comprising: the membrane; and the first transfer substrate, wherein the surface of the first transfer substrate comprising the first ink and the non-aqueous swelling agent is disposed upon one surface of the membrane; and heating the assembly at a temperature of 150° C. or less and at a pressure of from about 250 kPa to about 3000 kPa or less for a time suitable to allow substantially complete transfer of the first ink and the second ink to the membrane; and cooling the assembly to room temperature and removing the first transfer substrate and the second transfer substrate. | 07-22-2010 |
20100237278 | Non-aqueous liquid compositions comprising ion exchange polymers - Compositions, and methods of making thereof, comprising from about 1% to about 5% of a perfluorinated sulfonic acid ionomer or a hydrocarbon-based ionomer; and from about 95% to about 99% of a solvent, said solvent consisting essentially of a polyol; wherein said composition is substantially free of water and wherein said ionomer is uniformly dispersed in said solvent. | 09-23-2010 |
20110049441 | NON-AQUEOUS LIQUID COMPOSITIONS COMPRISING ION EXCHANGE POLYMERS CROSS REFERENCE TO RELATED APPLICATION - Compositions, and methods of making thereof, comprising from about 1% to about 5% of a perfluorinated sulfonic acid ionomer or a hydrocarbon-based ionomer; and from about 95% to about 99% of a solvent, said solvent consisting essentially of a polyol; wherein said composition is substantially free of water and wherein said ionomer is uniformly dispersed in said solvent. | 03-03-2011 |
20110065018 | ANION EXCHANGE POLYMER ELECTROLYTES - Solid anion exchange polymer electrolytes and compositions comprising chemical compounds comprising a polymeric core, a spacer A, and a guanidine base, wherein said chemical compound is uniformly dispersed in a suitable solvent and has the structure: | 03-17-2011 |
20110266491 | NON-AQUEOUS LIQUID COMPOSITIONS COMPRISING ION EXCHANGE POLYMERS - Compositions, and methods of making thereof, comprising from about 1% to about 5% of a perfluorinated sulfonic acid ionomer or a hydrocarbon-based ionomer; and from about 95% to about 99% of a solvent, said solvent consisting essentially of a polyol; wherein said composition is substantially free of water and wherein said ionomer is uniformly dispersed in said solvent. | 11-03-2011 |
20110275008 | ANION EXCHANGE POLYMER ELECTROLYTES - Solid anion exchange polymer electrolytes include chemical compounds comprising a polymer backbone with side chains that include guanidinium cations. | 11-10-2011 |
20120225370 | MINIMIZING ELECTRODE CONTAMINATION IN AN ELECTROCHEMICAL CELL - An electrochemical cell assembly that is expected to prevent or at least minimize electrode contamination includes one or more getters that trap a component or components leached from a first electrode and prevents or at least minimizes them from contaminating a second electrode. | 09-06-2012 |
20120225371 | IONOMER FOR ALKALINE FUEL CELL - An ionomer may be used as a binder for a catalyst to prepare an anode for a solid alkaline fuel cell. The ionomer is a reaction product of a guanidine and a perfluorosulfonic acid polymer. | 09-06-2012 |
20120308914 | ADVANCED MEMBRANE ELECTRODE ASSEMBLIES FOR FUEL CELLS - A method of preparing advanced membrane electrode assemblies (MEA) for use in fuel cells. A base polymer is selected for a base membrane. An electrode composition is selected to optimize properties exhibited by the membrane electrode assembly based on the selection of the base polymer. A property-tuning coating layer composition is selected based on compatibility with the base polymer and the electrode composition. A solvent is selected based on the interaction of the solvent with the base polymer and the property-tuning coating layer composition. The MEA is assembled by preparing the base membrane and then applying the property-tuning coating layer to form a composite membrane. Finally, a catalyst is applied to the composite membrane. | 12-06-2012 |
20140024728 | ANION EXCHANGE POLYMER ELECTROLYTES - Anion exchange polymer electrolytes that include guanidinium functionalized polymers may be used as membranes and binders for electrocatalysts in preparation of anodes for electrochemical cells such as solid alkaline fuel cells. | 01-23-2014 |
20140275300 | POLY(ARYLENE)-BASED ANION EXCHANGE POLYMER ELECTROLYTES - Poly(arylene) electrolytes including copolymers lacking ether groups in the polymer may be used as membranes and binders for electrocatalysts in preparation of anodes for electrochemical cells such as solid alkaline fuel cells. | 09-18-2014 |