| Patent application number | Description | Published |
|---|
| 20090042093 | PROTON CONDUCTOR FOR FUEL CELL AND FUEL CELL INCLUDING THE SAME - Provided are a proton conductor for a fuel cell, the proton conductor including a phosphoric acid-based material; and a C8-C20 perfluoroalkylsulfonic acid salt which is dissolved in the phosphoric acid-based material and has excellent oxygen solubility characteristics, an electrode including the proton conductor, an electrolyte membrane for a fuel cell including the proton conductor, and a fuel cell including the electrode and the electrolyte membrane. When the C8-C20 perfluoroalkylsulfonic acid salt is used in the preparation of the electrode and electrolyte membrane for a fuel cell, oxygen solubility is increased in a phosphoric acid-based material and oxygen concentration is increased in a phosphoric acid-based material of the electrode. Thus, reactivity of oxygen reduction which is performed in a cathode is increased. Increased concentration of oxygen in the electrode increases oxygen permeability in the cathode, and thus the resistance against reactants' transfer is decreased. As a result, the cell voltages can be increased using the electrode and the electrolyte membrane, and fuel cells having improved efficiency can be prepared. | 02-12-2009 |
| 20090117436 | ELECTROLYTE MEMBRANE FOR FUEL CELL AND FUEL CELL USING THE SAME - A fuel cell including an electrolyte membrane and/or an electrode which includes a crosslinked polybenzoxazine-based compound formed of a polymerized product of at least one selected from a first benzoxazine-based monomer and second benzoxazine-based monomer, the first benzoxazine-based monomer and second benzoxazine-based monomer having a halogen atom or a halogen atom-containing functional group, crosslinked with a cross-linkable compound. | 05-07-2009 |
| 20100159347 | HYPER-BRANCHED POLYMER, ELECTRODE FOR FUEL CELL INCLUDING THE HYPER-BRANCHED POLYMER, ELECTROLYTE MEMBRANE FOR FUEL CELL INCLUDING THE HYPER-BRANCHED POLYMER, AND FUEL CELL INCLUDING AT LEAST ONE OF THE ELECTRODE AND THE ELECTROLYTE MEMBRANE - A hyper-branched polymer having a degree of branching in the range of about 0.05 to about 1 includes a dendritic unit, a linear unit, and a terminal unit, wherein the hyper-branched polymer, an electrode for a fuel cell including the hyper-branched polymer, an electrolyte membrane for a fuel cell including the hyper-branched polymer, and a fuel cell including at least one of the electrode and the electrolyte membrane. Such a hyper-branched polymer included in a fuel cell provides excellent thermal resistance and phosphoric acid resistance and increase the performance of the fuel cell. | 06-24-2010 |
| 20100167166 | HYPER-BRANCHED POLYMER, ELECTRODE INCLUDING THE POLYMER, ELECTROLYTE MEMBRANE INCLUDING THE POLYMER, AND FUEL CELL INCLUDING THE ELECTRODE AND/OR THE ELECTROLYTE MEMBRANE - A hyper-branched polymer that has a dendritic unit, a linear unit, a terminal unit, and a degree of branching of about 0.05 to about 1. The hyper-branched polymer can be included in an electrode and/or an electrolyte membrane of a fuel cell. | 07-01-2010 |
| 20100273087 | CROSS-LINKED POLYAZOLE, METHOD OF PREPARING THE POLYAZOLE, ELECTRODE FOR FUEL CELL INCLUDING THE CROSS-LINKED POLYAZOLE, ELECTROLYTE MEMBRANE FOR FUEL CELL INCLUDING THE CROSS-LINKED POLYAZOLE, METHOD OF MANUFACTURING THE ELECTROLYTE MEMBRANE, AND FUEL CELL INCLUDING THE CROSS-LINKED POLYAZOLE - A cross-linked polyazole, a method of preparing the cross-linked polyazole, an electrode and an electrolyte membrane for a fuel cell, which include the cross-linked polyazole, a method of manufacturing the electrolyte membrane, and a fuel cell including the cross-linked polyazole. | 10-28-2010 |
| 20110189581 | COMPOUND, CROSS-LINKED MATERIAL THEREOF, DOUBLE CROSS-LINKED POLYMER THEREOF, AND ELECTROLYTE MEMBRANE, ELECTRODE FOR FUEL CELL AND FUEL CELL INCLUDING SAME - A compound having an amino group at a terminal thereof and at least one amino group in a repeating unit, a cross-linked material of the compound, a double cross-linked polymer thereof, an electrolyte membrane and an electrode for a fuel cell, which include the cross-linked material of the compound or the double cross-linked polymer thereof, and a fuel cell including at least one of the electrolyte membrane and the electrode. | 08-04-2011 |
| 20110189584 | POLYMER AND CROSS-LINKED POLYMER COMPOSITION, ELECTRODE AND ELECTROLYTE MEMBRANE INCLUDING CROSS-LINKED POLYMER, AND FUEL CELL INCLUDING ELECTRODE AND ELECTROLYTE MEMBRANE - A polymer composition, a cross-linked polymer formed therefrom, an electrolyte membrane and electrode for a fuel cell including the same, and a fuel cell employing the electrode and the electrolyte membrane. The cross-linked polymer includes an oxazine-based monomer capable of retaining phosphoric acid and has excellent mechanical strength. When the cross-linked polymer is used, an electrode and electrolyte membrane for a fuel cell with enhanced capability of retaining phosphoric acid at a wide range of temperature may be manufactured, leading to long-term durability, and enhanced proton conductivity. | 08-04-2011 |
| 20110195338 | HYPER-BRANCHED POLYMER, ELECTRODE AND ELECTROLYTE MEMBRANE INCLUDING THE HYPER-BRANCHED POLYMER, AND FUEL CELL INCLUDING AT LEAST ONE OF THE ELECTRODE AND THE ELECTROLYTE MEMBRANE - A hyper-branched polymer, which is a product obtained by performing condensation polymerization reaction of a hyper-branched polymer composition including a diisocyanate-based compound and a dihydroxyamine-based compound, a cross-linked hyper-branched polymer, an electrode and electrolyte membrane for a fuel cell including the hyper-branched polymer or the cross-linked hyper-branched polymer, and a fuel cell including the electrode and the electrolyte membrane. | 08-11-2011 |
| 20110195340 | COMPOSITION, POLYMER THEREOF, ELECTRODE AND ELECTROLYTE MEMBRANE FOR FUEL CELL, AND FUEL CELL INCLUDING THE SAME - A composition including a compound having a fluorine functional group, a polymer as a polymerization product of the composition, an electrode and an electrolyte membrane for a fuel cell, which include the composition or the polymer thereof, and a fuel cell including at least one of the electrode and the electrolyte membrane. | 08-11-2011 |
