Patents by Inventor Murat UNLU
Murat UNLU 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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Publication number: 20220136118Abstract: A multilayer cation exchange membrane for use in a chloralkali process comprising an carboxylate layer comprising a fluorinated ionomer containing carboxylate groups on one side of the membrane, an exterior sulfonate layer comprising a fluorinated ionomer containing sulfonate groups on the side of the membrane opposite the carboxylate layer, and an interior sulfonate layer comprising a fluorinated ionomer containing to sulfonate groups between the carboxylate layer and the exterior sulfonate layer, the exterior sulfonate layer having an ion exchange ratio greater than about 11.3, and the interior sulfonate layer having an ion exchange ratio less than about 11.Type: ApplicationFiled: February 13, 2020Publication date: May 5, 2022Applicant: THE CHEMOURS COMPANY FC, LLCInventors: RANDAL L PERRY, MURAT UNLU, JACK CHRISTOPHER BRADY, DOUGLAS GLENN EWART, TIMOTHY EDWARD HOPKINS, RALPH BIRCHARD LLOYD, MARK ROBERT MCKEEVER
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Patent number: 10868324Abstract: The invention relates to flow batteries having improved crossover resistance to electroactive species, excellent coulombic and voltage efficiency and durability, which batteries comprise a separator membrane comprising an ionomer having a high equivalent weight, EW, to achieve these performance benefits. The ionomer has an EW of 1150 to 2000. Preferably, the ionomer is a perfluorosulfonic acid ionomer which has substantially all of the functional groups being represented by the formula —SO3X wherein X is H, Li, Na, K or N(R1)(R2)(R3)(R4) and R1, R2, R3, and R4 are the same or different and are H, CH3 or C2H5. Preferably, substantially all of the functional groups are represented by the formula —SO3X wherein X is H.Type: GrantFiled: December 17, 2013Date of Patent: December 15, 2020Assignee: THE CHEMOURS COMPANY FC, LLCInventors: Ralph Birchard Lloyd, Murat Unlu
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Patent number: 9242243Abstract: Provided according to some embodiments of the invention are anion exchange polyelectrolytes that include an at least partially fluorinated polyaromatic polymer backbone; and at least one cationic functional group pendant therefrom. Also provided are anion exchange membranes (AEMs) formed from at least one anion exchange polyelectrolyte according to an embodiment of the invention, and fuel cells including such AEMs.Type: GrantFiled: September 24, 2010Date of Patent: January 26, 2016Assignee: Georgia Tech Research CorporationInventors: Junfeng Zhou, Paul A. Kohl, Murat Unlu
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Publication number: 20160008649Abstract: A composition is provided that is capable of abating combustion of a Li-ion battery, comprising liquid fluoropolyether and at least one combustion abatement agent being other than fluoropolymer, examples of such agent including one or more compounds that exhibit one or more of the following characteristics of being a hydrate, carbonate, bicarbonate or sulfate, or are phosphorus or bromine containing or that form a char and/or exhibit intumescence upon heating.Type: ApplicationFiled: June 30, 2015Publication date: January 14, 2016Inventors: Dennis J. Kountz, Alan D. English, Lam H. Leung, Murat Unlu
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Publication number: 20150311541Abstract: The invention relates to flow batteries having improved crossover resistance to electroactive species, excellent coulombic and voltage efficiency and durability, which batteries comprise a separator membrane comprising an ionomer having a high equivalent weight, EW, to achieve these performance benefits. The ionomer has an EW of 1150 to 2000. Preferably, the ionomer is a perfluorosulfonic acid ionomer which has substantially all of the functional groups being represented by the formula —SO3X wherein X is H, Li, Na, K or N(R1)(R2)(R3)(R4) and R1, R2, R3, and R4 are the same or different and are H, CH3 or C2H5. Preferably, substantially all of the functional groups are represented by the formula —SO3X wherein X is H.Type: ApplicationFiled: December 17, 2013Publication date: October 29, 2015Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: RALPH BIRCHARD LLOYD, MURAT UNLU
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Publication number: 20150064581Abstract: A membrane electrode assembly for use in a fuel cell includes an anode electrode, a proton exchange membrane, an anion exchange membrane and a cathode electrode. The anode electrode includes a first catalyst. The first catalyst separates a reducing agent into a plurality of positively charged ions and negative charges. The proton exchange membrane is configured to favor transport of positively charged ions therethrough and is also configured to inhibit transport of negatively charged particles therethrough. The anion exchange membrane is configured to favor transport of negatively charged ions therethrough and is also configured to inhibit transport of positively charged ions therethrough. The cathode electrode includes a second catalyst and is disposed adjacent to a second side of the anion exchange membrane. The second catalyst reacts electrons with the at least one oxidizing agent so as to generate+reduced species.Type: ApplicationFiled: November 10, 2014Publication date: March 5, 2015Applicant: GEORGIA TECH RESEARCH CORPORATIONInventors: Murat UNLU, Paul KOHL, Junfeng ZHOU
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Publication number: 20150044579Abstract: A fuel cell (100) includes a cation exchange membrane (110), a first anion exchange membrane (120) and a second anion exchange membrane (130). The cation exchange membrane (110) has a first side and an opposite second side. The first anion exchange membrane (120) has a first exterior surface and an opposite first interior surface disposed along at least a portion to the first side of the cation exchange membrane (110). A catalyst (140) is embedded along the first exterior surface. The second anion exchange membrane (130) has a second exterior surface and an opposite second interior surface disposed along at least a portion to the second side of the cation exchange membrane (110). A catalyst (142) is embedded along the second exterior surface. A stack of fuel cells (700) include a first fuel cell (710) with an acidic first anode (714) that is electrically coupled to an alkaline second cathode (722) of a second fuel cell (720).Type: ApplicationFiled: October 27, 2014Publication date: February 12, 2015Applicant: GEORGIA TECH RESEARCH CORPORATIONInventors: Murat Unlu, Paul Kohl, Hyea Kim, Junfeng Zhou, Irene Anestis-Richard
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Patent number: 8895196Abstract: A fuel cell (100) includes a cation exchange membrane (110), a first anion exchange membrane (120) and a second anion exchange membrane (130). The cation exchange membrane (110) has a first side and an opposite second side. The first anion exchange membrane (120) has a first exterior surface and an opposite first interior surface disposed along at least a portion to the first side of the cation exchange membrane (110). A catalyst (140) is embedded along the first exterior surface. The second anion exchange membrane (130) has a second exterior surface and an opposite second interior surface disposed along at least a portion to the second side of the cation exchange membrane (110). A catalyst (142) is embedded along the second exterior surface. A stack of fuel cells (700) include a first fuel cell (701) with an acidic first anode (714) that is electrically coupled to an alkaline second cathode (722) of a second fuel cell (720).Type: GrantFiled: September 24, 2010Date of Patent: November 25, 2014Assignee: Georgia Tech Research CorporationInventors: Murat Unlu, Paul Kohl, Hyea Kim, Junfeng Zhou, Irene Anestis-Richard
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Publication number: 20120238648Abstract: Provided according to some embodiments of the invention are anion exchange polyelectrolytes that include an at least partially fluorinated polyaromatic polymer backbone; and at least one cationic functional group pendant therefrom. Also provided are anion exchange membranes (AEMs) formed from at least one anion exchange polyelectrolyte according to an embodiment of the invention, and fuel cells including such AEMs.Type: ApplicationFiled: September 24, 2010Publication date: September 20, 2012Inventors: Junfeng Zhou, Paul A. Kohl, Murat Unlu
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Publication number: 20120178000Abstract: A fuel cell (100) includes a cation exchange membrane (110), a first anion exchange membrane (120) and a second anion exchange membrane (130). The cation exchange membrane (110) has a first side and an opposite second side. The first anion exchange membrane (120) has a first exterior surface and an opposite first interior surface disposed along at least a portion to the first side of the cation exchange membrane (110). A catalyst (140) is embedded along the first exterior surface. The second anion exchange membrane (130) has a second exterior surface and an opposite second interior surface disposed along at least a portion to the second side of the cation exchange membrane (110). A catalyst (142) is embedded along the second exterior surface. A stack of fuel cells (700) include a first fuel cell (701) with an acidic first anode (714) that is electrically coupled to an alkaline second cathode (722) of a second fuel cell (720).Type: ApplicationFiled: September 24, 2010Publication date: July 12, 2012Applicant: GEORGIA TECH RESEARCH CORPORATIONInventors: Murat Unlu, Paul Kohl, Hyea Kim, Junfeng Zhou, Irene Anestis-Richard
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Patent number: 7842178Abstract: An electrically conducting electrode having a composite and a current collector in electrical contact with the composite, the composite can comprise at least about 10 weight percent electrically conductive particles, at least about 0.5 weight percent magnetic particles, and an optional polymeric binder, wherein composite is at least about 80 weight percent with respect to the combined weight of the electrically conductive particles, the magnetic particles and the binder. Electrochemical systems can effectively use these electrodes to improve system performance.Type: GrantFiled: April 17, 2006Date of Patent: November 30, 2010Assignee: University of Iowa Research FoundationInventors: Johna Leddy, Angela Wolf, Drew Dunwoody, Wayne Gellett, Murat Ünlü
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Publication number: 20100028736Abstract: A membrane electrode assembly for use in a fuel cell includes an anode electrode, a cation exchange membrane, an anion exchange membrane and a cathode electrode. The anode electrode includes a first catalyst. The first catalyst separates a reducing agent into a plurality of positively charged ions and negative charges. The cation exchange membrane is configured to favor transport of positively charged ions therethrough and is also configured to inhibit transport of negatively charged particles therethrough. The anion exchange membrane is configured to favor transport of negatively charged ions therethrough and is also configured to inhibit transport of positively charged ions therethrough. The cathode electrode includes a second catalyst and is disposed adjacent to a second side of the anion exchange membrane. The second catalyst reacts electrons with the at least one oxidizing agent so as to create reduced species.Type: ApplicationFiled: August 1, 2009Publication date: February 4, 2010Applicant: GEORGIA TECH RESEARCH CORPORATIONInventors: Murat UNLU, Paul KOHL, Junfeng ZHOU
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Publication number: 20070056849Abstract: An electrically conducting electrode having a composite and a current collector in electrical contact with the composite, the composite can comprise at least about 10 weight percent electrically conductive particles, at least about 0.5 weight percent magnetic particles, and an optional polymeric binder, wherein composite is at least about 80 weight percent with respect to the combined weight of the electrically conductive particles, the magnetic particles and the binder. Electrochemical systems can effectively use these electrodes to improve system performance.Type: ApplicationFiled: April 17, 2006Publication date: March 15, 2007Inventors: Johna Leddy, Angela Wolf, Drew Dunwoody, Wayne Gellett, Murat Unlu