Patents by Inventor Il Seok Chae

Il Seok Chae 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).

  • ANTIOXIDANT FOR FUEL CELL HAVING ANTIOXIDATIVE PROPERTY AND PROTON CONDUCTIVITY AND PRODUCING METHOD THEREOF
    Publication number: 20230374222
    Abstract: Disclosed are an antioxidant for a fuel cell having both antioxidative properties and proton conductivity, and a method of producing the same. The antioxidant may include: a metal oxide having antioxidant properties; and a proton conductive functional group bonded to the metal oxide, in which the proton conductive functional group may include a sulfonic acid group attached to the metal oxide by a sulfonation bond.
    Type: Application
    Filed: December 20, 2022
    Publication date: November 23, 2023
    Inventor: Il Seok Chae
  • ELECTRODE FOR MEMBRANE-ELECTRODE ASSEMBLY WITH LOW IONOMER CONTENT AND HIGH OXYGEN PERMEABILITY AND MANUFACTURING METHOD THEREOF
    Publication number: 20230335756
    Abstract: An electrode for a membrane-electrode assembly having improved oxygen permeability by reducing the ionomer content includes a catalyst including a support and an active metal supported on the support, an ionomer, and an additive including a carbon material and a proton conductive functional group bonded to the carbon material.
    Type: Application
    Filed: December 16, 2022
    Publication date: October 19, 2023
    Inventors: Young Jung Heo, Il Seok Chae
  • Antioxidant having high antioxidant capability for fuel cell, and electrolyte membrane and membrane-electrode assembly comprising same
    Patent number: 11594746
    Abstract: Disclosed are an antioxidant for a fuel cell having a high degree of dispersion and/or distribution and excellent antioxidant capability and a membrane-electrode assembly including the same. The antioxidant includes a metal oxide and a sulfur-containing organic compound, for example, an organic compound including a sulfinic acid anion group (R—SO2?), adsorbed on the metal oxide.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: February 28, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Il Seok Chae, Jae Jun Ko, Bo Ki Hong
  • METHOD OF PRODUCING ANTIOXIDANT WITH IMPROVED ANTIOXIDANT ABILITY AND DISPERSION PROPERTY FOR MEMBRANE-ELECTRODE ASSEMBLY
    Publication number: 20220416281
    Abstract: Disclosed is a method of producing an antioxidant that has excellent antioxidant ability and is well dispersed when applied to a membrane-electrode assembly (MEA). The method includes a step of preparing a powder including reduced metal oxide and a step of mixing the powder with a powdery ionomer to obtain an antioxidant in which the ionomer is bound to the surface of the reduced metal oxide.
    Type: Application
    Filed: June 21, 2022
    Publication date: December 29, 2022
    Inventors: Il Seok Chae, Jong Kil Oh
  • ELECTROLYTE MEMBRANE OF MEMBRANE-ELECTRODE ASSEMBLY COMPRISING PLASMA-TREATED FILLER AND MANUFACTURING METHOD THEREOF
    Publication number: 20220255104
    Abstract: Disclosed are an electrolyte membrane of a membrane-electrode assembly comprising a plasma-treated filler and a manufacturing method thereof The electrolyte membrane includes an ionomer having a membrane form and a filler dispersed in the ionomer and having a hydrophobic surface.
    Type: Application
    Filed: November 3, 2021
    Publication date: August 11, 2022
    Inventors: Jong Jin Yoon, Il Seok Chae
  • ELECTROLYTE MEMBRANE FOR MEMBRANE-ELECTRODE ASSEMBLY INCLUDING SELF-ASSEMBLED BLOCK COPOLYMER
    Publication number: 20220166044
    Abstract: Disclosed is an electrolyte membrane for a membrane-electrode assembly including a block copolymer composed of a hydrophilic domain and a hydrophobic domain.
    Type: Application
    Filed: October 6, 2021
    Publication date: May 26, 2022
    Inventor: Il Seok Chae
  • ELECTROLYTE MEMBRANE INCLUDING POLYFLUORENE-BASED IONOMER AND MANUFACTURING METHOD THEREOF
    Publication number: 20220093953
    Abstract: The present disclosure to an electrolyte membrane containing a polyfluorene-based ionomer, and more particularly, to an electrolyte membrane containing a polyfluorene-based ionomer which has a fluorene main chain composed of only a carbon-carbon bond and a side chain composed of a perfluorosulfonic acid group. The electrolyte membrane containing the polyfluorene-based ionomer has high proton conductivity, excellent chemical durability, excellent mechanical property, and excellent volume stability.
    Type: Application
    Filed: September 13, 2021
    Publication date: March 24, 2022
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, INDUSTRY-ACADEMIC COOPERATION FOUNDATION GYEONGSANG NATIONAL UNIVERSITY
    Inventors: Il Seok Chae, Jong Kil Oh, Bo Ki Hong, Ki Hyun Kim, Soon Ki Kwon, Mi Jeong Kim, Han Sol Ko
  • ELECTRODE HAVING HIGH OXYGEN PERMEABILITY FOR FUEL CELL AND MEMBRANE-ELECTRODE ASSEMBLY COMPRISING SAME
    Publication number: 20220021006
    Abstract: Disclosed are an electrode for a fuel cell a membrane-electrode assembly including the same, and a method of preparing the same. The electrode may include catalyst particles; and a binder in which the catalyst particles are dispersed. In particular, the binder may include an ionomer having proton conductivity and a polymer of intrinsic microporosity (PIM) in order to implement high oxygen permeability.
    Type: Application
    Filed: December 14, 2020
    Publication date: January 20, 2022
    Inventors: Il Seok Chae, Bo Ki Hong
  • ELECTROLYTE MEMBRANE FOR MEMBRANE-ELECTRODE ASSEMBLY COMPRISING FILLER IMPROVING ION CONDUCTIVITY
    Publication number: 20220021012
    Abstract: Disclosed is an electrolyte membrane for a membrane-electrode assembly, which may include a filler that is a polymer compound (oligomer) having a low molecular weight. The electrolyte membrane may suitably include an oligomeric poly(vinylpyrrolidone) compound including a sulfonic acid group. The electrolyte membrane for a membrane-electrode assembly may have improved proton conductivity.
    Type: Application
    Filed: December 14, 2020
    Publication date: January 20, 2022
    Inventors: Il Seok Chae, Bo Ki Hong
  • ANTIOXIDANT HAVING HIGH ANTIOXIDANT CAPABILITY FOR FUEL CELL, AND ELECTROLYTE MEMBRANE AND MEMBRANE-ELECTRODE ASSEMBLY COMPRISING SAME
    Publication number: 20210305611
    Abstract: Disclosed are an antioxidant for a fuel cell having a high degree of dispersion and/or distribution and excellent antioxidant capability and a membrane-electrode assembly including the same. The antioxidant includes a metal oxide and a sulfur- containing organic compound, for example, an organic compound including a sulfinic acid anion group (R—SO2?), adsorbed on the metal oxide.
    Type: Application
    Filed: December 14, 2020
    Publication date: September 30, 2021
    Inventors: Il Seok Chae, Jae Jun Ko, Bo Ki Hong