Patents by Inventor Michael R. Schoeneweiss
Michael R. Schoeneweiss 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).
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Patent number: 9786941Abstract: A membrane electrode assembly for fuel cells includes a proton conducting membrane having a first side and a second side. The proton conducting membrane in turn includes a first polymer including cyclic polyether groups and a second polymer having sulfonic acid groups. The membrane electrode assembly further includes an anode disposed over the first side of the proton conducting layer and a cathode catalyst layer disposed over the second side of the proton conducting layer.Type: GrantFiled: September 12, 2012Date of Patent: October 10, 2017Assignee: GM Global Technology Operations LLCInventors: Timothy J. Fuller, Ion C. Halalay, Lijun Zou, Michael R. Schoeneweiss
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Patent number: 9370750Abstract: A method of making an ion conducting membrane includes a step of reacting a compound having formula 1 with a polymer having polymer segment 2: to form a copolymer having polymer segment 2 and polymer segment 3: and The copolymer having polymer segment 2 and polymer segment 3 are then formed into an ion conducting membrane, wherein Z is a C6-80 aliphatic, polyether, or perfluoropolyether; Y is a divalent linking group; E0 is a hydrocarbon-containing moiety; Q1 is a perfluorocyclobutyl moiety; P1, P2 are each independently absent, —O—, —S—, —SO—, —CO—, —SO2—, —NH—, NR2—, or —R3—; R2 is C1-25 alkyl, C1-25 aryl or C1-25 arylene; and R3 is C1-25 alkylene, C1-25 perfluoroalkylene, perfluoroalkyl ether, alkylether, or C1-25 arylene.Type: GrantFiled: August 30, 2012Date of Patent: June 21, 2016Assignee: GM Global Technology Operations LLCInventors: Timothy J. Fuller, Lijun Zou, Michael R. Schoeneweiss
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Patent number: 9325026Abstract: An ion conducting membrane for fuel cell applications includes an ion conducting polymer and a porphyrin-containing compound at least partially dispersed within the ion conducting polymer. The ion conducting membranes exhibit improved performance over membranes not incorporating such porphyrin-containing compounds.Type: GrantFiled: March 28, 2013Date of Patent: April 26, 2016Assignee: GM Global Technology Operations LLCInventors: Michael R. Schoeneweiss, Timothy J. Fuller, Frank Coms, Sean M. MacKinnon
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Patent number: 9178238Abstract: A membrane electrode assembly for a fuel cell includes an anode catalyst layer, a cathode catalyst layer, and an ion conducting membrane. The ion conducting membrane is interposed between the anode catalyst layer and the cathode catalyst layer. The ion conducting membrane includes an ion conducting polymer having sulfonic acid groups and rubber particulates. Characteristically, the rubber particulates have an average spatial dimension less than about 600 nanometers. A fuel cell incorporating the membrane electrode assembly is also provided.Type: GrantFiled: April 3, 2012Date of Patent: November 3, 2015Assignee: GM Global Technology Operations, LLCInventors: Timothy J. Fuller, Lijun Zou, Michael R. Schoeneweiss, James Mitchell
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Patent number: 9172099Abstract: A fibrous sheet for fuel cell or battery applications is formed by electrospinning a fluorinated ion-conducting polymer solution to form an agglomeration of fibers.Type: GrantFiled: October 31, 2011Date of Patent: October 27, 2015Assignee: GM Global Technology Operations LLCInventors: Lijun Zou, Timothy J. Fuller, Michael R. Schoeneweiss
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Patent number: 9083049Abstract: A fuel cell comprising: a first layer comprising a first ionomer and an additive, the additive comprising a metal oxide comprising an oxide at least one of of Ce, Mn, V, Pt, Ru, Zr, Ni, Cr, W, Co, Mo, or Sn, and wherein the additive is present in at least 0.1 weight percent of the ionomer is disclosed as one embodiment of the invention, and performance and durability are advantaged wherein one or all of the metal oxide consists essentially nanoparticles.Type: GrantFiled: October 16, 2006Date of Patent: July 14, 2015Assignee: GM Global Technology Operations LLCInventors: Timothy J. Fuller, Michael R. Schoeneweiss, Tao Xie, Frank Coms, Sean M. MacKinnon, Gerald W. Fly
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Patent number: 9040596Abstract: An ion conducting membrane for fuel cells involves coupling a compound having a sulfonic acid group with a polymeric backbone. Each of the compounds having a sulfonic acid group and the polymeric backbone are first functionalized with a halogen.Type: GrantFiled: December 28, 2011Date of Patent: May 26, 2015Assignee: GM Global Technology Operations LLCInventors: Timothy J. Fuller, Lijun Zou, Michael R. Schoeneweiss
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Publication number: 20150105239Abstract: A membrane electrode assembly for fuel cells includes a proton conducting membrane having a first side and a second side. The membrane electrode assembly further includes an anode disposed over the first side of the proton conducting layer and a cathode catalyst layer disposed over the second side of the proton conducting layer. One or both of the anode catalyst layer and the cathode catalyst layer includes a first polymer which has cyclic polyether groups. An ink composition for forming a fuel cell catalyst layer is also provided.Type: ApplicationFiled: July 29, 2014Publication date: April 16, 2015Inventors: TIMOTHY J. FULLER, LIJUN ZOU, JAMES MITCHELL, MICHAEL R. SCHOENEWEISS
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Patent number: 8852823Abstract: An ion conducting membrane for fuel cell applications includes an ion conducting polymer and a tin-containing compound at least partially dispersed within the ion conducting polymer. The ion conducting membranes exhibit improved performance over membranes not incorporating such tin-containing compounds.Type: GrantFiled: August 26, 2009Date of Patent: October 7, 2014Assignee: GM Global Technology Operations LLCInventors: Timothy J. Fuller, Michael R. Schoeneweiss, Sean M Mackinnon, Frank Coms
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Patent number: 8795924Abstract: A membrane electrode assembly for fuel cells includes a proton conducting membrane having a first side and a second side. The membrane electrode assembly further includes an anode disposed over the first side of the proton conducting layer and a cathode catalyst layer disposed over the second side of the proton conducting layer. One or both of the anode catalyst layer and the cathode catalyst layer includes a first polymer which has cyclic polyether groups. An ink composition for forming a fuel cell catalyst layer is also provided.Type: GrantFiled: September 12, 2012Date of Patent: August 5, 2014Assignee: GM Global Technology Operations LLCInventors: Timothy J. Fuller, Lijun Zou, James Mitchell, Michael R. Schoeneweiss
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Patent number: 8735021Abstract: A membrane/electrode assembly for fuel cell applications includes an ion conducting polymer and a porphyrin-containing compound at least partially dispersed within the ion conducting polymer, a first electrode and a second electrode. At least one of the first and second electrodes also includes the porphyrin-containing compound. The membrane/electrode assembly exhibits improved performance over membrane/electrode assembly not incorporating such porphyrin-containing compounds.Type: GrantFiled: April 16, 2010Date of Patent: May 27, 2014Assignee: GM Global Technology Operations LLCInventors: Timothy J. Fuller, Michael R. Schoeneweiss, Junliang Zhang
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Publication number: 20140080031Abstract: A supported membrane for fuel cell applications includes a first expanded polytetrafluoroethylene support and a second expanded polytetrafluoroethylene support. Both the first and second expanded polytetrafluoroethylene supports independently have pores with a diameter from about 0.1 to about 1 microns and a thickness from about 4 to 12 microns. The supported membrane also includes an ion conducting polymer adhering to the first expanded polytetrafluoroethylene support and the second expanded polytetrafluoroethylene support such that the membrane has a thickness from about 10 to 25 microns.Type: ApplicationFiled: September 14, 2012Publication date: March 20, 2014Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Lijun Zou, Timothy J. Fuller, Michael R. Schoeneweiss
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Publication number: 20140072901Abstract: A membrane electrode assembly for fuel cells includes a proton conducting membrane having a first side and a second side. The membrane electrode assembly further includes an anode disposed over the first side of the proton conducting layer and a cathode catalyst layer disposed over the second side of the proton conducting layer. One or both of the anode catalyst layer and the cathode catalyst layer includes a first polymer which has cyclic polyether groups. An ink composition for forming a fuel cell catalyst layer is also provided.Type: ApplicationFiled: September 12, 2012Publication date: March 13, 2014Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Timothy J. Fuller, Lijun Zou, James Mitchell, Michael R. Schoeneweiss
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Publication number: 20140072900Abstract: A membrane electrode assembly for fuel cells includes a proton conducting membrane having a first side and a second side. The proton conducting membrane in turn includes a first polymer including cyclic polyether groups and a second polymer having sulfonic acid groups. The membrane electrode assembly further includes an anode disposed over the first side of the proton conducting layer and a cathode catalyst layer disposed over the second side of the proton conducting layer.Type: ApplicationFiled: September 12, 2012Publication date: March 13, 2014Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Timothy J. Fuller, Ion C. Halalay, Lijun Zou, Michael R. Schoeneweiss
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Publication number: 20140065514Abstract: A method of making an ion conducting membrane includes a step of reacting a compound having formula 1 with a polymer having polymer segment 2: to form a copolymer having polymer segment 2 and polymer segment 3: and The copolymer having polymer segment 2 and polymer segment 3 are then formed into an ion conducting membrane, wherein Z is a C6-80 aliphatic, polyether, or perfluoropolyether; Y is a divalent linking group; E0 is a hydrocarbon-containing moiety; Q1 is a perfluorocyclobutyl moiety; P1, P2 are each independently absent, —O—, —S—, —SO—, —CO—, —SO2—, —NH—, NR2—, or —R3—; R2 is C1-25 alkyl, C1-25 aryl or C1-25 arylene; and R3 is C1-25 alkylene, C1-25 perfluoroalkylene, perfluoroalkyl ether, alkylether, or C1-25 arylene.Type: ApplicationFiled: August 30, 2012Publication date: March 6, 2014Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Timothy J. Fuller, Lijun Zou, Michael R. Schoeneweiss
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Patent number: 8609739Abstract: A polymer for ion conductor applications includes a polymer segment having a perfluorocyclobutyl moiety and a phosphonated aryl group and a polymer segment a perfluorocyclobutyl moiety without phosphonated aryl group. The polymer is formed into an ion conducting membrane for fuel cell applications.Type: GrantFiled: February 17, 2011Date of Patent: December 17, 2013Assignee: GM Global Technology Operations LLCInventors: Lijun Zou, Timothy J. Fuller, Michael R. Schoeneweiss
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Publication number: 20130288158Abstract: An ion conducting membrane for fuel cell applications includes an ion conducting polymer and a porphyrin-containing compound at least partially dispersed within the ion conducting polymer. The ion conducting membranes exhibit improved performance over membranes not incorporating such porphyrin-containing compounds.Type: ApplicationFiled: March 28, 2013Publication date: October 31, 2013Inventors: MICHAEL R. SCHOENEWEISS, TIMOTHY J. FULLER, FRANK COMS, SEAN M. MacKINNON
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Publication number: 20130260279Abstract: A membrane electrode assembly for a fuel cell includes an anode catalyst layer, a cathode catalyst layer, and an ion conducting membrane. The ion conducting membrane is interposed between the anode catalyst layer and the cathode catalyst layer. The ion conducting membrane includes an ion conducting polymer having sulfonic acid groups and rubber particulates. Characteristically, the rubber particulates have an average spatial dimension less than about 600 nanometers. A fuel cell incorporating the membrane electrode assembly is also provided.Type: ApplicationFiled: April 3, 2012Publication date: October 3, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATION LLCInventors: Timothy J. Fuller, Lijun Zou, Michael R. Schoeneweiss, James Mitchell
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Publication number: 20130171528Abstract: An ion conducting membrane for fuel cells involves coupling a compound having a sulfonic acid group with a polymeric backbone. Each of the compounds having a sulfonic acid group and the polymeric backbone are first functionalized with a halogen.Type: ApplicationFiled: December 28, 2011Publication date: July 4, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: TIMOTHY J. FULLER, LIJUN ZOU, MICHAEL R. SCHOENEWEISS
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Publication number: 20130084516Abstract: An ion-conducting membrane for fuel cells includes an ion-conducting polymer having protogenic groups and poly(methyl methacrylate). Characteristically, the ion-conducting layer is planar having a thickness from 1 microns to 200 microns. A membrane electrode assembly includes the ion-conducting membrane interposed between a cathode layer and an anode layer.Type: ApplicationFiled: September 30, 2011Publication date: April 4, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Michael R. Schoeneweiss, Timothy J. Fuller, Lijun Zou