| Patent application number | Description | Published |
|---|
| 20080268321 | Membrane-Electrode Units and Fuel Cells Having a Long Service Life - The present invention relates to a membrane electrode unit having two gas diffusion layers, each contacted with a catalyst layer, which are separated by a polymer electrolyte membrane, wherein the polymer electrolyte membrane has an inner area which is contacted with a catalyst layer, and an outer area which is not provided on the surface of a gas diffusion layer, characterized in that the thickness of the inner area of the membrane decreases over a period of 10 minutes by at least 5% at a pressure of 5 N/mm | 10-30-2008 |
| 20080280182 | POLYMER MEMBRANE, METHOD FOR THE PRODUCTION AND USE THEREOF - The present invention relates to an acid-doped polymer membrane based on polyazoles. The acid-doped polymer membrane can be used in a variety of applications because of its excellent mechanical properties and is useful as polymer electrolyte membrane (PEM) in PEM fuel cells. A doped polymer membrane based on polyazoles is obtained by a process comprising the steps of: A) casting a film using a solution of polymers based on polyazoles in a polar, aprotic organic solvent; B) drying the film formed in step A) until it is self-supporting; C) treating the film obtained in step B) with a treatment liquid at a temperature in the range from room temperature to the boiling point of the treatment liquid; D) drying and/or dabbing the film treated according to step C) to remove the treatment liquid from step C); and E) doping the film treated according to step D) with a doping agent. | 11-13-2008 |
| 20090098430 | MEMBRANE-ELECTRODE ASSEMBLIES AND LONG-LIFE FUEL CELLS - Polymer with high molecular weight which can be obtained by a method, in which a composition is polymerised by free-radical polymerisation which, based on its total weight, comprises at least 80.0% by weight of ethylenically unsaturated compounds, characterized in that the composition contains at least one monomer comprising phosphonic acid groups and/or sulphonic acid groups. | 04-16-2009 |
| 20090169955 | MEMBRANE FOR FUEL CELLS, CONTAINING POLYMERS COMPRISING PHOSPHONIC ACID GROUPS AND/OR SULFONIC ACID GROUPS, MEMBRANE UNITS AND THE USE THEREOF IN FUEL CELLS - Membrane for fuel cells, containing polymers comprising phosphonic acid and/or sulphonic acid groups, membrane electrode assemblies and the use thereof in fuel cells | 07-02-2009 |
| 20090214920 | Proton-conducting membrane and use thereof - The present invention relates to a novel proton-conducting polymer membrane based on polyazoles which can, owing to its excellent chemical and thermal properties, be used for a variety of purposes and is particularly suitable as a polymer-electrolyte membrane (PEM) for the production of membrane electrode units for so-called PEM fuel cells. | 08-27-2009 |
| 20090214921 | Proton-conducting membrane and use thereof - The present invention relates to a novel proton-conducting polymer membrane based on polyazoles which can, owing to its excellent chemical and thermal properties, be used for a variety of purposes and is particularly suitable as a polymer-electrolyte membrane (PEM) for the production of membrane electrode units for so-called PEM fuel cells. | 08-27-2009 |
| 20090258274 | MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELLS OF INCREASED POWER - A membrane electrode assembly, comprising at least two electrochemically active electrodes which are separated by at least on polymer electrolyte membrane, wherein the polymer electrolyte membrane has reinforcing elements which penetrate the polymer electrolyte membrane at least partially. | 10-15-2009 |
| 20100047669 | Multilayer electrolyte membrane - The present invention relates to a proton-conducting multilayer electrolyte membrane with a barrier layer, a process for producing it and a fuel cell containing such a membrane. | 02-25-2010 |
| 20100075203 | MEMBRANE-ELECTRODE UNIT COMPRISING A BARRIER JUNCTION - The present invention relates to a membrane-electrode assembly comprising at least one membrane, at least two electrode layers and at least one barrier layer, wherein the at least one barrier layer comprises at least one catalytically active species and/or at least one adsorbent material and the barrier layer is electronically nonconductive when a catalytically active species is present, the use of such a barrier layer in a membrane-electrode assembly and in a fuel cell, and also a gas-diffusion electrode and a fuel cell comprising such a membrane-electrode assembly. | 03-25-2010 |
| 20100164148 | POLYMER MEMBRANE, METHOD FOR THE PRODUCTION AND USE THEREOF - The present invention relates to an acid-doped polymer membrane based on polyazoles. The acid-doped polymer membrane can be used in a variety of applications because of its excellent mechanical properties and is useful as polymer electrolyte membrane (PEM) in PEM fuel cells. A doped polymer membrane based on polyazoles is obtained by a process comprising the steps of: A) casting a film using a solution of polymers based on polyazoles in a polar, aprotic organic solvent; B) drying the film formed in step A) until it is self-supporting; C) treating the film obtained in step B) with a treatment liquid at a temperature in the range from room temperature to the boiling point of the treatment liquid; D) drying and/or dabbing the film treated according to step C) to remove the treatment liquid from step C); and E) doping the film treated according to step D) with a doping agent. | 07-01-2010 |
| 20100167163 | PROTON-CONDUCTING MEMBRANE AND THE USE OF THE SAME - The invention relates to a novel proton-conducting polymer membrane based on polyazols. Said polymer membrane can be used in a variety of ways due to its outstanding chemical and thermal properties and is especially suitable as a polymer electrolyte membrane (PEM) for producing membrane electrode units for so-called PEM fuel cells. | 07-01-2010 |
| 20100181697 | PROCESS FOR PRODUCING A PROTON-CONDUCTING, POLYAZOLE-CONTAINING MEMBRANE - A method for producing a proton-conducting, polyazole-containing membrane, in which
| 07-22-2010 |
| 20100216051 | PROTON-CONDUCTING POLYMER MEMBRANE COMPRISING POLYAZOLE BLENDS AND ITS USE IN FUEL CELLS - The present invention relates to a proton-conducting polymer membrane which comprises polyazole blends and is obtainable by a process comprising the steps
| 08-26-2010 |
| 20100227252 | PROTON-CONDUCTING POLYMER MEMBRANE COMPRISING POLYMERS CONTAINING PHOSPHONIC ACID GROUPS AND ITS USE IN FUEL CELLS - The present invention relates to a proton-conducting polymer membrane comprising polymers containing phosphonic acid groups which is obtainable by a process comprising the steps
| 09-09-2010 |
| 20110003071 | CATALYST INK COMPRISING AN IONIC LIQUID AND ITS USE IN THE PRODUCTION OF ELECTRODES, CCMS, GDES AND MEAS - The present invention relates to a catalyst ink comprising at least one catalytically active material and at least one ionic liquid, a process for producing this catalyst ink, a process for producing a membrane-electrode assembly (MEA) comprising at least one membrane and at least one electrode by applying this catalyst ink to a membrane or by applying this catalyst ink to any gas diffusion layer present, the use of this catalyst ink in the production of a membrane-electrode assembly (MEA), a catalyst coated membrane (CCM) or a gas diffusion electrode (GDE) and the use of an ionic liquid for producing a catalyst ink. | 01-06-2011 |
| 20110033777 | PROTON-CONDUCTING MEMBRANE AND USE THEREOF - The present invention relates to a novel proton-conducting polymer membrane based on polyazole block polymers which, owing to their outstanding chemical and thermal properties, can be used widely and are suitable in particular as polymer electrolyte membrane (PEM) for producing membrane electrode units or so-called PEM fuel cells. | 02-10-2011 |
| 20110065020 | PROTON-CONDUCTING MEMBRANE AND ITS USE - A proton-conducting polymer membrane comprising at least one polyazole, at least one ionic liquid and at least one compound of the formula (P1) | 03-17-2011 |
| 20110124918 | 5-ISOPROPYL-3-AMINOMETHYL-2-METHYL-1-AMINO-CYCLOHEXANE (CARVONE DIAMINE), AND METHOD FOR THE PRODUCTION THEREOF - The present invention relates to 5-isopropyl-3-aminomethyl-2-methyl-1-aminocyclohexane (carvonediamine) and to a process for preparation thereof by a) reacting carvone with hydrogen cyanide, b) then reacting the carvonenitrile obtained in stage a) with ammonia in the presence of an imine formation catalyst and c) then reacting the carvonenitrile imine-containing reaction mixture obtained in stage b) with hydrogen and ammonia over hydrogenation catalysts. | 05-26-2011 |
