Patents by Inventor Jong Kil Oh

Jong Kil Oh 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: 12166251
    Abstract: Disclosed are a method for manufacturing a polymer electrolyte membrane for fuel cells in which a plurality of porous reinforcement films and ionomer layers are continuously disposed or stacked, and a polymer electrolyte membrane for fuel cells manufactured thereby. The polymer electrolyte membrane for fuel cells includes the porous reinforcement films, thus having excellent mechanical stiffness and improved physical durability. Further, the polymer electrolyte membrane for fuel cells includes an ionomer layer including a catalyst for decomposing peroxide configured to block gas crossover and may thus minimize performance degradation due to gas crossover and prevent an electrical short, and the polymer electrolyte membrane for fuel cells makes it easy to adjust the position of the ionomer layer in the electrolyte membrane in the thickness direction and may thus effectively mitigate gas crossover.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: December 10, 2024
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jong Kil Oh, Sae Hoon Kim, Bo Ki Hong
  • Publication number: 20240304826
    Abstract: A highly durable electrolyte membrane using cerium oxide supported with an alloy catalyst that is a hydrogen-oxygen reaction catalyst for improving chemical durability of an electrolyte membrane increases durability of a membrane-electrode assembly including the same and decreases the manufacturing cost thereof.
    Type: Application
    Filed: November 20, 2023
    Publication date: September 12, 2024
    Inventors: In Yu Park, Jong Kil Oh, Woo Chul Jung, Seung Hyun Kim, Dong Hwan Oh
  • Publication number: 20240222651
    Abstract: Disclosed is an oxygen evolution catalyst having a core-shell structure including iridium oxide and ruthenium oxide and a method of preparing the same. More particularly, the method of preparing an oxygen evolution catalyst includes preparing a core including nickel sulfide, manufacturing nanoparticles by allowing a coating layer including iridium and ruthenium to grow on the surface of the core, and obtaining a catalyst by heat-treating the nanoparticles, in which the catalyst includes the core and a shell surrounding the surface of the core and including iridium oxide and ruthenium oxide.
    Type: Application
    Filed: June 5, 2023
    Publication date: July 4, 2024
    Inventors: Dae Yong Son, Jong Kil Oh, Kwang Yeol Lee, Ye Ji Park, Duck Hyun Kim
  • Publication number: 20240182621
    Abstract: In an embodiment, an ionomer includes a partial structure represented by: wherein z is an integer of 1 to 10.
    Type: Application
    Filed: May 3, 2023
    Publication date: June 6, 2024
    Inventors: Il Seok Chae, Jong Kil Oh, Ki Hyun Kim, Han Sol Ko, Mi Jeong Kim
  • Publication number: 20240178425
    Abstract: An embodiment ionomer for a fuel cell includes a copolymer having no carbon-oxygen bond, wherein the copolymer includes hydrophilic moieties disposed at both ends, wherein each hydrophilic moiety includes a styrene unit and a proton conductive functional group, and a hydrophobic moiety interposed between the hydrophilic moieties, wherein the hydrophobic moiety includes an ethylene-based unit, a butylene-based unit, an isoprene-based unit, or any combination thereof.
    Type: Application
    Filed: April 28, 2023
    Publication date: May 30, 2024
    Inventors: Il Seok Chae, Jong Kil Oh, Jong Hak Kim, Du Yeol Ryu, So Youn Lee
  • Patent number: 11984628
    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: Grant
    Filed: June 21, 2022
    Date of Patent: May 14, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Il Seok Chae, Jong Kil Oh
  • Publication number: 20240018675
    Abstract: Disclosed are a catalyst including a nickel-based intermetallic compound and a method of preparing the same. The catalyst includes a support and a metal component loaded on the support, wherein the metal component includes an intermetallic compound of nickel (Ni) and a noble metal.
    Type: Application
    Filed: December 13, 2022
    Publication date: January 18, 2024
    Inventors: Dae Yong Son, Jong Kil Oh, Sung Jong Yoo, Ha Neul Jin
  • Publication number: 20240014424
    Abstract: Disclosed are an electrolyte membrane with excellent durability resulting from the inclusion of a metal-organic framework (MOF), and a membrane-electrode assembly including the same. The electrolyte membrane may include an ionomer; and metal-organic frameworks (MOFs) in which a first metal ion and an organic ligand are coordinated.
    Type: Application
    Filed: December 19, 2022
    Publication date: January 11, 2024
    Inventors: In Yu Park, Jong Kil Oh, Sun Ju Song, Jae Woon Hong, Aniket Kumar, Ye Jin Yun
  • Patent number: 11799113
    Abstract: Disclosed is an electrolyte membrane including an antioxidant containing elemental sulfur or a sulfur compound to improve antioxidant activity and resistance to acids. In addition, a membrane-electrode assembly including the electrolyte membrane is disclosed.
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: October 24, 2023
    Assignees: Hyundai Motor Company, Kia Corporation, Industry Foundation of Chonnam National University
    Inventors: In Yu Park, Jong Kil Oh, Sun Ju Song, Jae Woon Hong, Aniket Kumar, Ye Jin Yun
  • Patent number: 11749816
    Abstract: Disclosed are a highly durable electrolyte membrane having improved ion conductivity and a method of producing the same. The electrolyte membrane may include an ionomer having hydrogen ion conductivity and a complex dispersed in the ionomer. The complex may include: a support; a primary antioxidant loaded on the support and having radical scavenging ability; and a secondary antioxidant loaded on the support and having peroxide decomposition activity.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: September 5, 2023
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: In Yu Park, Byoung Su Kim, Dae Yong Son, Jong Kil Oh
  • Patent number: 11735746
    Abstract: Disclosed is a catalyst complex for a fuel cell. The catalyst complex includes a support including carbon (C), platinum (Pt) supported on the support, and an iridium (Ir) compound supported on the support, and the iridium compound includes at least one of iridium oxide represented by Chemical Formula 1, IrOx, and iridium-transition-metal oxide represented by Chemical Formula 2, IrMOx, wherein M is a transition metal selected from the group consisting of Fe, Co, Cu, Ni and combinations thereof, and x is from 1 to 2.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: August 22, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Korea Advanced Institute of Science and Technology
    Inventors: Jung Han Yu, Bo Ki Hong, Jong Kil Oh, Hyun Joo Lee, Chi Woo Roh
  • Publication number: 20230253573
    Abstract: A method is provided for producing a catalyst for oxygen reduction reaction in an electrochemical cell. The method for producing a catalyst for an oxygen reduction reaction of an electrochemical cell comprises preparing a solution containing sodium alginate and a solvent, preparing a gel by adding a transition metal precursor to the solution, preparing a reactant by adding a nitrogen doping agent to the gel, and stirring the reactant to cause a reaction to obtain a product; and heat-treating the product.
    Type: Application
    Filed: December 1, 2022
    Publication date: August 10, 2023
    Inventors: Jong Jin YOON, Jong Kil OH, Jin Young SON, Sungjin PARK
  • Publication number: 20230121105
    Abstract: Disclosed are a polymer electrolyte membrane for fuel cells which has improved handling properties and mechanical strength by employing symmetric-type laminated composite films and a method for manufacturing the same.
    Type: Application
    Filed: December 19, 2022
    Publication date: April 20, 2023
    Inventors: Jong Kil OH, In Yu Park, Bo Ki Hong
  • Patent number: 11557783
    Abstract: Disclosed are a polymer electrolyte membrane for fuel cells which has improved handling properties and mechanical strength by employing symmetric-type laminated composite films and a method for manufacturing the same.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: January 17, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jong Kil Oh, In Yu Park, Bo Ki Hong
  • 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
  • Publication number: 20220393213
    Abstract: Disclosed is an electrolyte membrane including an antioxidant containing elemental sulfur or a sulfur compound to improve antioxidant activity and resistance to acids. In addition, a membrane-electrode assembly including the electrolyte membrane is disclosed.
    Type: Application
    Filed: December 7, 2021
    Publication date: December 8, 2022
    Inventors: In Yu Park, Jong Kil Oh, Sun Ju Song, Jae Woon Hong, Aniket Kumar, Ye Jin Yun
  • Publication number: 20220367893
    Abstract: Disclosed are a membrane-electrode assembly (MEA) and a method of manufacturing the same. The MEA include an electrolyte membrane and a pair of electrodes, the electrodes being disposed on both surfaces of the electrolyte membrane, respectively. At least one of the electrolyte membranes and electrodes includes an ion-conducting polymer having a proton-conducting functional group, and a compound represented by Chemical Formula 1 is bonded to each of all or some of the proton-conducting functional groups: MAx??[Chemical Formula 1] wherein M is an element belonging to the lanthanum group, A is a hydrophilic functional group, and X is a numerical value for balance of charges between A and M. Since the MEA includes an ion-conducting polymer having good chemical durability and proton conductivity, the MEA is durable and has high proton conductivity.
    Type: Application
    Filed: November 30, 2021
    Publication date: November 17, 2022
    Inventors: In Yu Park, Jong Kil Oh, Sun Ju Song, Jae Woon Hong, Aniket Kumar, Ye Jin Yun
  • Publication number: 20220209259
    Abstract: Disclosed are a highly durable electrolyte membrane having improved ion conductivity and a method of producing the same. The electrolyte membrane may include an ionomer having hydrogen ion conductivity and a complex dispersed in the ionomer. The complex may include: a support; a primary antioxidant loaded on the support and having radical scavenging ability; and a secondary antioxidant loaded on the support and having peroxide decomposition activity.
    Type: Application
    Filed: November 29, 2021
    Publication date: June 30, 2022
    Inventors: In Yu Park, Byoung Su Kim, Dae Yong Son, Jong Kil Oh
  • 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
  • Patent number: 11196070
    Abstract: Disclosed are a membrane-electrode assembly for fuel cells and a method of manufacturing the same. The membrane-electrode assembly for fuel cells may include an electrolyte membrane including a phosphonic acid functionalized graphene oxide in order to improve the mechanical strength and proton conductivity thereof and a method of manufacturing the same.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: December 7, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Industry Foundation of Chonnam National University
    Inventors: In Yu Park, Jong Kil Oh, Bo Ki Hong, Aniket Kumar, Sun Ju Song, Jae Woon Hong