Patents by Inventor Oscar Morales Collazo

Oscar Morales Collazo 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).

  • Ionic liquid to enhance performance and durability of membrane assembly electrode (MEA)
    Patent number: 11819826
    Abstract: A dimeric ionic liquid that enhances and improves the performance and durability of a fuel cell catalyst. The dimeric ionic liquid comprises 1,1-(butane-1, 4-diyl)bis(9-methyl-3,4,6,7,8,9-hexahydro-2H-pyrimido[1,2-a]pyrimidin-1-ium 1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonate. Membrane electrode assemblies (MEAs) and polymer electrolyte membrane fuel cells (PEMFCs) employing the dimeric ionic liquid are also disclosed.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: November 21, 2023
    Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Board of Regents, The University of Texas System
    Inventors: Liang Wang, Hongfei Jia, Joan F. Brennecke, Oscar Morales Collazo, Hisao Kato
  • Protonated dimeric ionic liquid to enhance performance of membrane assembly electrode (MEA)
    Patent number: 11731110
    Abstract: A protonated dimeric ionic liquid that enhances and improves the performance of a fuel cell catalyst. The protonated dimeric ionic liquid comprises 9?9?-(butane-1,4-diyl)bis(3,4,6,7,8,9-hexahydro-2H-pyrimido[1,2-a]pyrimidin-1-ium) 1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonate. Membrane electrode assemblies (MEAs) and polymer electrolyte membrane fuel cells (PEMFCs) employing the protonated dimeric ionic liquid are also disclosed.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: August 22, 2023
    Assignees: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC., BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Liang Wang, Hongfei Jia, Joan F. Brennecke, Oscar Morales Collazo, Hisao Kato
  • PROTONATED DIMERIC IONIC LIQUID TO ENHANCE PERFORMANCE OF MEMBRANE ASSEMBLY ELECTRODE (MEA)
    Publication number: 20230096034
    Abstract: A protonated dimeric ionic liquid that enhances and improves the performance of a fuel cell catalyst. The protonated dimeric ionic liquid comprises 9?9?-(butane-1, 4-diyl)bis(3,4,6,7,8,9-hexahydro-2H-pyrimido[1,2-a]pyrimidin-1-ium) 1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonate (HTBD) Membrane electrode assemblies (MEAs) and polymer electrolyte membrane fuel cells (PEMFCs) employing the protonated dimeric ionic liquid are also disclosed.
    Type: Application
    Filed: September 3, 2021
    Publication date: March 30, 2023
    Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., The University of Texas at Austin
    Inventors: Liang Wang, Hongfei Jia, Joan F. Brennecke, Oscar Morales Collazo, Hisao Kato
  • IONIC LIQUID TO ENHANCE PERFORMANCE AND DURABILITY OF MEMBRANE ASSEMBLY ELECTRODE (MEA)
    Publication number: 20230092991
    Abstract: A dimeric ionic liquid that enhances and improves the performance and durability of a fuel cell catalyst. The dimeric ionic liquid comprises 1,1-(butane-1,4-diyl)bis(9-methyl-3,4,6,7,8,9-hexahydro-2H-pyrimido[1,2-a]pyrimidin-1-ium 1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonate (D-[MTBD][C4F9SO3]). Membrane electrode assemblies (MEAs) and polymer electrolyte membrane fuel cells (PEMFCs) employing the dimeric ionic liquid are also disclosed.
    Type: Application
    Filed: September 3, 2021
    Publication date: March 23, 2023
    Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., The University of Texas at Austin
    Inventors: Liang Wang, Hongfei Jia, Joan F. Brennecke, Oscar Morales Collazo, Hisao Kato
  • Ionic liquid as promotor to enhance the performance of oxygen reduction catalyst for fuel cell application
    Patent number: 10777823
    Abstract: A secondary ionomer that enhances activity and stability of a cathode catalyst in a polymer electrolyte membrane fuel cell includes the ionic liquid, 1-methyl-2,3,4,6,7,8-hexahydro-1H-pyrimido[1,2-a]pyrimidin-9-ium 1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonate ([MTBD][C4F9SO3]). When contacting the catalyst, [MTBD][C4F9SO3] enhances catalyst activity and stability more effectively than previously known ionomers, likely by preventing oxide formation and water adsorption at the catalyst surface. The disclosed secondary ionomer is thus most effective when completely coating the catalyst.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: September 15, 2020
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC., THE UNIVERSITY OF NOTRE DAME
    Inventors: Kan Huang, Oscar Morales Collazo, Joan Brennecke, Hongfei Jia, Hisao Kato
  • IONIC LIQUID AS PROMOTOR TO ENHANCE THE PERFORMANCE OF OXYGEN REDUCTION CATALYST FOR FUEL CELL APPLICATION
    Publication number: 20180287165
    Abstract: A secondary ionomer that enhances activity and stability of a cathode catalyst in a polymer electrolyte membrane fuel cell includes the ionic liquid, 1-methyl-2,3,4,6,7,8-hexahydro-1H-pyrimido[1,2-a]pyrimidin-9-ium 1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonate ([MTBD][C4F9SO3]). When contacting the catalyst, [MTBD][C4F9SO3] enhances catalyst activity and stability more effectively than previously known ionomers, likely by preventing oxide formation and water adsorption at the catalyst surface. The disclosed secondary ionomer is thus most effective when completely coating the catalyst.
    Type: Application
    Filed: April 3, 2017
    Publication date: October 4, 2018
    Inventors: Kan Huang, Oscar Morales Collazo, Joan Brennecke, Hongfei Jia, Hisao Kato