Patents by Inventor Christoph Padberg
Christoph Padberg has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 9559367Abstract: The present invention relates to membrane electrode assemblies comprising two electrochemically active electrodes separated by a polymer electrolyte membrane, there being a polyimide layer on each of the two surfaces of the polymer electrolyte membrane that are in contact with the electrodes. The present membrane electrode assemblies may be used in particular for producing fuel cells which have a particularly high long-term stability.Type: GrantFiled: July 31, 2003Date of Patent: January 31, 2017Assignee: BASF Fuel Cell GmbHInventors: Jürgen Pawlik, Jochen Baurmeister, Christoph Padberg
-
Publication number: 20150125779Abstract: The present invention relates to a method for the conditioning of membrane electrode assemblies for fuel cells in which the output of the membrane electrode assemblies used can be increased and therefore the efficiency of the resulting polymer electrolyte membrane fuel cells can be improved.Type: ApplicationFiled: December 12, 2014Publication date: May 7, 2015Inventors: OEMER UENSAL, Joachim Kiefer, Isabel Kundler, Mathias Weber, Christoph Padberg, Thomas Schmidt, Jochen Baurmeister, Gordon Calundann, Glen Hoppes
-
Patent number: 8945736Abstract: The present invention relates to a method for the conditioning of membrane electrode assemblies for fuel cells in which the output of the membrane electrode assemblies used can be increased and therefore the efficiency of the resulting polymer electrolyte membrane fuel cells can be improved.Type: GrantFiled: October 24, 2012Date of Patent: February 3, 2015Assignee: BASF Fuel Cell GmbHInventors: Oemer Uensal, Joachim Kiefer, Isabel Kundler, Mathias Weber, Christoph Padberg, Thomas Schmidt, Jochen Baurmeister, Gordon Calundann, Glen Hoppes
-
Publication number: 20120122013Abstract: A membrane-electrode unit includes two diffusion layers, each layer being in contact with a catalyst layer and the layers separated by a polymer electrolyte membrane. A polymer frame contacts at least one of the two surfaces of the membrane. The frame includes an inner region on at least one surface of the membrane and an outer region outside the diffusion layer. The thickness of the outer region is between 50 and 100% of the thickness of the inner region. The thickness of the outer region is reduced by a maximum 2% at a temperature of 80° C. and a pressure of 10 N/mm over a period of 5 hours, the reduction being determined after a first compression process, carried out at a pressure of 10 N/mm for 1 minute.Type: ApplicationFiled: January 5, 2012Publication date: May 17, 2012Inventors: Thomas Schmidt, Christoph Padberg, Glen Hoppes, Detlef Ott, Francis Rat, Marc Jantos
-
Patent number: 8177863Abstract: A method for production of a membrane/electrode unit for a fuel cell is disclosed. The conducting polymer membrane is compressed with two electrodes until a given compression is achieved. The method permits an increase in resting voltage of the membrane/electrode unit in use, the amount of damage during production is reduced, and a constant thickness within a production run is achieved.Type: GrantFiled: June 23, 2011Date of Patent: May 15, 2012Assignee: BASF Fuel Cell GmbHInventors: Christoph Padberg, Jürgen Sinschek, Torsten Raap, Ulf Hofmann
-
Patent number: 8066784Abstract: The invention relates to a method for production of a membrane/electrode unit, whereby a conducting polymer membrane is compressed with two electrodes until a given compression is achieved. Said method permits an increase in resting voltage of the membrane/electrode unit in use, the amount of damage during production is reduced and a constant thickness within a production run is achieved.Type: GrantFiled: July 14, 2005Date of Patent: November 29, 2011Assignee: BASF Fuel Cell GmbHInventors: Christoph Padberg, Jürgen Sinschek, Torsten Raap, Ulf Hofmann
-
Publication number: 20110265669Abstract: A method for production of a membrane/electrode unit for a fuel cell is disclosed. The conducting polymer membrane is compressed with two electrodes until a given compression is achieved. The method permits an increase in resting voltage of the membrane/electrode unit in use, the amount of damage during production is reduced, and a constant thickness within a production run is achieved.Type: ApplicationFiled: June 23, 2011Publication date: November 3, 2011Inventors: Christoph Padberg, Jürgen Sinschek, Torsten Raap, Ulf Hofmann
-
Patent number: 8012647Abstract: The invention relates to a membrane-electrode unit comprising a) two electrochemically active electrodes divided by a polymer electrolytic membrane, wherein the surfaces of said polymer electrolytic membrane are in contact with the electrodes in such a way that the first electrode partially or entirely covers the front side of the polymer electrolytic membrane and the second electrode partially or entirely covers the rear side thereof, b) a sealing material is applied to the front and rear sides of the polymer electrolytic membrane, wherein the polymer electrolytic membrane is provided with one or several recesses and the sealing material applied to the front side of the polymer electrolytic membrane is in contact with the sealing material applied to the rear side thereof. A method for producing said membrane-electrode unit and fuel cells provided therewith are also disclosed.Type: GrantFiled: August 5, 2005Date of Patent: September 6, 2011Assignee: BASF Fuel Cell GmbHInventors: Jürgen Pawlik, Oemer Uensal, Thomas Schmidt, Christoph Padberg, Glen Hoppes
-
Patent number: 7661542Abstract: The present invention relates to a proton-conducting polymer membrane which comprises polyazoles and is coated with a catalyst layer and is obtainable by a process comprising the steps A) preparation of a mixture comprising polyphosphoric acid, at least one polyazole (polymer A) and/or one or more compounds which are suitable for forming polyazoles under the action of heat according to step B), B) heating of the mixture obtainable according to step A) under inert gas to temperatures of up to 400° C., C) application of a layer using the mixture obtained according to step A) and/or B) to a support, D) treatment of the membrane formed in step C) until it is self-supporting, E) application of at least one catalyst-containing coating to the membrane formed in step C) and/or in step D).Type: GrantFiled: October 2, 2003Date of Patent: February 16, 2010Assignee: BASF Fuel Cell GmbHInventors: Jochen Baurmeister, Isabel Kundler, Christoph Padberg, Oemer Uensal, Joachim Kiefer, Gordon Calundann, Brian Benicewicz, Mathias Weber
-
Publication number: 20080268321Abstract: 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/mm2 and the thickness of the membrane in the outer area is greater than the thickness of the inner area of the membrane.Type: ApplicationFiled: August 5, 2006Publication date: October 30, 2008Applicant: BASF Fuel Cell GmbHInventors: Oemer Uensal, Thomas Schmidt, Christoph Padberg, Detlef Ott
-
Publication number: 20080038624Abstract: The present invention relates to a proton-conducting polymer membrane coated with a catalyst layer, said polymer membrane comprising polymers which comprise phosphonic acid groups and are obtainable by polymerizing monomers comprising phosphonic acid groups, characterized in that the catalyst layer comprises ionomers which comprise phosphonic acid groups and are obtainable by polymerizing monomers comprising phosphonic acid groups.Type: ApplicationFiled: April 27, 2007Publication date: February 14, 2008Inventors: Jorg Belack, Isabel Kundler, Thomas Schmidt, Oemer Uensal, Joachim Kiefer, Christoph Padberg, Mathias Weber
-
Publication number: 20080038613Abstract: The invention relates to a method for production of a membrane/electrode unit, whereby a conducting polymer membrane is compressed with two electrodes until a given compression is achieved. Said method permits an increase in resting voltage of the membrane/electrode unit in use, the amount of damage during production is reduced and a constant thickness within a production run is achieved.Type: ApplicationFiled: July 14, 2005Publication date: February 14, 2008Inventors: Christoph Padberg, Jurgen Sinschek, Torsten Raap, Torsten Hofmann
-
Publication number: 20070248863Abstract: The invention relates to a membrane-electrode unit comprising a) two electrochemically active electrodes divided by a polymer electrolytic membrane, wherein the surfaces of said polymer electrolytic membrane are in contact with the electrodes in such a way that the first electrode partially or entirely covers the front side of the polymer electrolytic membrane and the second electrode partially or entirely covers the rear side thereof, b) a sealing material is applied to the front and rear sides of the polymer electrolytic membrane, wherein the polymer electrolytic membrane is provided with one or several recesses and the sealing material applied to the front side of the polymer electrolytic membrane is in contact with the sealing material applied to the rear side thereof. A method for producing said membrane-electrode unit and fuel cells provided therewith are also disclosed.Type: ApplicationFiled: August 5, 2005Publication date: October 25, 2007Inventors: Jurgen Pawlik, Oemer Uensal, Thomas Schmidt, Christoph Padberg, Glen Hoppes
-
Publication number: 20070248889Abstract: The invention relates to a membrane-electrode unit comprising two gas diffusion layers, each layer being in contact with a catalyst layer and said gas diffusion layers being separated by a polymer electrolyte membrane. A polymer frame is provided on at least one of the two surfaces of the polymer electrolyte membrane that are in contact with the catalyst layer. Said polymer frame comprises an inner region that lies on at least one surface of the polymer electrolyte membrane and an outer region that lies outside the gas diffusion layer. The thickness of all components of the outer region is between 50 and 100% of the thickness of all components of the inner region. The thickness of the outer region is reduced by a maximum 2% at a temperature of 80° C. and a pressure of 10 N/mm2 over a period of 5 hours, said reduction in thickness being determined after a first compression process, which is carried out at a pressure of 10 N/mm2 for 1 minute.Type: ApplicationFiled: July 21, 2005Publication date: October 25, 2007Applicant: PEMEAS GMBHInventors: Thomas Schmidt, Christoph Padberg, Glen Hoppes, Detlef Ott, Francis Rat, Marc Jantos
-
Publication number: 20060079392Abstract: The present invention relates to a proton-conducting polymer membrane which comprises polyazoles and is coated with a catalyst layer and is obtainable by a process comprising the steps A) preparation of a mixture comprising polyphosphoric acid, at least one polyazole (polymer A) and/or one or more compounds which are suitable for forming polyazoles under the action of heat according to step B), B) heating of the mixture obtainable according to step A) under inert gas to temperatures of up to 400° C., C) application of a layer using the mixture obtained according to step A) and/or B) to a support, D) treatment of the membrane formed in step C) until it is self-supporting, E) application of at least one catalyst-containing coating to the membrane formed in step C) and/or in step D).Type: ApplicationFiled: October 2, 2003Publication date: April 13, 2006Applicant: PEMEAS GMBHInventors: Jochen Baurmeister, Isabel Kundler, Christoph Padberg, Oemer Uensal, Joachim Kiefer, Gordon Calundann, Brian Benicewicz, Mathias Weber
-
Publication number: 20060014065Abstract: The present invention relates to membrane electrode assemblies comprising two electrochemically active electrodes separated by a polymer electrolyte membrane, there being a polyimide layer on each of the two surfaces of the polymer electrolyte membrane that are in contact with the electrodes. The present membrane electrode assemblies may be used in particular for producing fuel cells which have a particularly high long-term stability.Type: ApplicationFiled: July 31, 2003Publication date: January 19, 2006Applicant: PEMEAS GmbHInventors: Jurgen Pawlik, Jochen Baurmeister, Christoph Padberg
-
Patent number: 6914084Abstract: Membranes comprising sulfonated polyether ketone and another polymer, process for their production, and their use, Membranes comprising from 30 to 99.5% by weight of a sulfonated, strictly alternating polyether ketone (A) having repeat units of the formula (I) —Ar—O—Ar?—CO—, where Ar and Ar?, independently of one another, are bivalent aromatic radicals, with an ion exchange capacity of from 1.3 to 4.0 meq of —SO3H/g of polymer and from 0.5 to 70% by weight of a partially fluorinated, nonfluorinated or perfluorinated polymer (B) are described. The membranes may be used in fuel cells.Type: GrantFiled: September 18, 1999Date of Patent: July 5, 2005Assignee: Celanese Ventures GmbHInventors: Thomas Soczka-Guth, Christoph Padberg, Georg Frank
-
Patent number: 6701492Abstract: From a circuit diagram, an electrically connected circuit diagram network is selected. From a layout representing the circuit diagram, an electrically connected layout network is selected that represents the circuit diagram network. A first electrical terminal connection of a first component is selected that connects the first component with the circuit diagram network or with the layout network. A second electrical terminal connection of a second component is selected that connects the component with the circuit diagram network or with the layout network. A first electrical moment is calculated for the transmission path of the layout. A second moment of the corresponding transmission path of the circuit diagram is calculated. A relationship between the first moment and the second moment is predetermined. A value of a resistor or a value of the capacitor of the circuit diagram is now modified in such a way that the relationship is satisfied.Type: GrantFiled: January 25, 2002Date of Patent: March 2, 2004Assignees: Infineon Technologies AG, Cadence Design Systems, Inc.Inventors: Janez Jaklic, Christoph Padberg, Gerd Hildebrand, Susanne Klee
-
Publication number: 20020133793Abstract: From a circuit diagram, an electrically connected circuit diagram network is selected. From a layout representing the circuit diagram, an electrically connected layout network is selected that represents the circuit diagram network. A first electrical terminal connection of a first component is selected that connects the first component with the circuit diagram network or with the layout network. A second electrical terminal connection of a second component is selected that connects the component with the circuit diagram network or with the layout network. A first electrical moment is calculated for the transmission path of the layout. A second moment of the corresponding transmission path of the circuit diagram is calculated. A relationship between the first moment and the second moment is predetermined. A value of a resistor or a value of the capacitor of the circuit diagram is now modified in such a way that the relationship is satisfied.Type: ApplicationFiled: January 25, 2002Publication date: September 19, 2002Inventors: Janez Jaklic, Christoph Padberg, Gerd Hildebrand, Susanne Klee