Patents by Inventor Jong Sung Yu

Jong Sung Yu 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).

  • Publication number: 20250125370
    Abstract: The present invention relates to a carbon structure, which can stably support a high content of sulfur in pores and has excellent electrical conductivity properties, wherein the carbon structure is a polyhedron, of which the center on at least one side is concave, and is a highly graphitized nitrogen-doped porous carbon structure. Therefore, the stability of lithium-sulfur batteries can be improved by effectively suppressing a s shuttle phenomenon occurring during an electrochemical reaction of lithium-sulfur batteries containing, as a cathode active material, the carbon structure supporting sulfur as well as minimizing the volume change resulting from sulfur and reduced lithium sulfide.
    Type: Application
    Filed: December 6, 2023
    Publication date: April 17, 2025
    Applicant: Daegu Gyeongbuk Institute of Science and Technology
    Inventors: Jong-Sung YU, Byong-June LEE
  • Publication number: 20250105309
    Abstract: Provided are a nitrogen-doped composite having a high degree of ordering and a method for producing the same. The composite includes a carbon support and a nitrogen-doped nanoparticle supported on the carbon support, wherein the nanoparticle includes an alloy including platinum and a metal other than platinum and has a coercivity of 7 kOe or more.
    Type: Application
    Filed: September 20, 2024
    Publication date: March 27, 2025
    Applicant: Daegu Gyeongbuk Institute of Science and Technology
    Inventors: Jong-Sung YU, Muhammad Irfansyah MAULANA
  • Publication number: 20250096251
    Abstract: The present disclosure relates to an electrode for a lithium metal battery, the electrode including: a current collector; and a silica layer containing plate-like porous silica, wherein pores of the plate-like porous silica have a cylindrical structure, and a lithium metal battery including the same. The formation of lithium dendrites on a surface of a negative electrode is prevented, such that stability of the battery may be improved and long-term cycle performance and rate capability may be improved.
    Type: Application
    Filed: August 21, 2024
    Publication date: March 20, 2025
    Applicant: Daegu Gyeongbuk Institute of Science and Technology
    Inventors: Jong-Sung YU, Jong Hun SUNG
  • Publication number: 20250023060
    Abstract: An electrode catalyst is configured such that non-noble metal particles, noble metal particles or nitride-doped noble metal particles are supported on a carbon support, wherein the carbon support has a 2D planar crystal structure or a 3D polyhedral crystal structure and is doped with nitrogen, thereby exhibiting increased catalytic activity.
    Type: Application
    Filed: September 20, 2024
    Publication date: January 16, 2025
    Applicants: HYUNDAI MOTOR COMPANY, Kia Corporation, Daegu Gyeongbuk Institute of Science and Technology
    Inventors: Eun Jik Lee, Jee Youn Hwang, Ji Hoon Jang, Ha Young Lee, Jong Sung Yu
  • Publication number: 20250015311
    Abstract: An electrode catalyst is configured such that non-noble metal particles, noble metal particles or nitride-doped noble metal particles are supported on a carbon support, wherein the carbon support has a 2D planar crystal structure or a 3D polyhedral crystal structure and is doped with nitrogen, thereby exhibiting increased catalytic activity.
    Type: Application
    Filed: September 20, 2024
    Publication date: January 9, 2025
    Applicants: HYUNDAI MOTOR COMPANY, Kia Corporation, Daegu Gyeongbuk Institute of Science and Technology
    Inventors: Eun Jik Lee, Jee Youn Hwang, Ji Hoon Jang, Ha Young Lee, Jong Sung Yu
  • Patent number: 12126029
    Abstract: An electrode catalyst is configured such that non-noble metal particles, noble metal particles or nitride-doped noble metal particles are supported on a carbon support, wherein the carbon support has a 2D planar crystal structure or a 3D polyhedral crystal structure and is doped with nitrogen, thereby exhibiting increased catalytic activity.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: October 22, 2024
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Eun Jik Lee, Jee Youn Hwang, Ji Hoon Jang, Ha Young Lee, Jong Sung Yu
  • Publication number: 20240332551
    Abstract: Provided are a composite and a membrane electrode assembly including active metal particles and sacrificial metal particles, and a fuel cell including the same. The composite according to the present invention includes active metal particles and sacrificial metal particles independently supported on a carbon support, it can suppress the deterioration of the active metal and have significantly improved durability while maintaining excellent activity of the catalyst. The membrane electrode assembly according to the present invention can have excellent catalytic activity and significantly improved durability for the same reasons as the above-described composite.
    Type: Application
    Filed: March 28, 2024
    Publication date: October 3, 2024
    Applicant: DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jong-Sung YU, Cheol Hwan SHIN
  • Publication number: 20240124992
    Abstract: Provided are a novel nickel foam having a hierarchical pore structure, a method of producing the same, and an application thereof. Unlike a conventional nickel foam, the nickel foam has a well-developed hierarchical pore structure including pores having a size of 4 ?m or less in addition to inherent macropores having a size of 100 ?m to 900 ?m, and thus, may have a significantly large specific surface area. Accordingly, the nickel foam may be variously applied to an electrochemical reaction such as a water electrolysis system and an exhaust gas purification filter.
    Type: Application
    Filed: October 17, 2023
    Publication date: April 18, 2024
    Applicant: Daegu Gyeongbuk Institute of Science and Technology
    Inventors: Jong-Sung YU, Yi WEI
  • Publication number: 20240044025
    Abstract: Provided is a catalyst for oxygen evolution reaction (OER) which has excellent catalytic performance and durability of oxygen evolution reaction (OER) by applying an oxide of divalent titanium having high electrical conductivity as a support, and more particularly, a porous catalyst for oxygen evolution reaction (OER) including a porous titanium oxide support satisfying TiO2?x (0.1?x<2); and a metal hydroxide supported on the titanium oxide support, and a method of preparing the same are provided.
    Type: Application
    Filed: August 7, 2023
    Publication date: February 8, 2024
    Applicant: Daegu Gyeongbuk Institute of Science and Technology
    Inventors: Jong Sung YU, Tong Hyun Kang
  • Publication number: 20230420694
    Abstract: The present invention relates to composite particles of a core-shell structure including a metal oxide particle core and a platinum-group transition metal shell, and an electrode for platinum-group transition metal-based electrochemical reactions including an oxygen reduction reaction, the electrode including the composite particles. Specifically, the present invention relates to: composite particles of a core-shell structure including a platinum-group transition metal shell formed on a metal oxide particle core by a photoreduction reaction; a catalyst for platinum-group transition metal-based electrochemical reactions including an oxygen reduction reaction, the catalyst including the composite particles; an electrode for platinum-group transition metal-based electrochemical reactions including an oxygen reduction reaction; a fuel cell; and a platinum-group transition metal-based electrochemical conversion device.
    Type: Application
    Filed: October 13, 2021
    Publication date: December 28, 2023
    Applicant: DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jong Sung YU, Ha Young LEE
  • Publication number: 20230175150
    Abstract: The present invention relates to a composite that is-cost-effective, has an excellent catalytic activity, and significantly improves stability compared to a pure platinum catalyst according to the related art. Specifically, the composite according to the present invention contains a carbon support and a binary alloy consisting of platinum and an alkaline earth metal supported on the carbon support which satisfies a specific condition in a Pt 4f X-ray photoelectron spectroscopy (XPS) spectrum of the binary alloy.
    Type: Application
    Filed: October 31, 2022
    Publication date: June 8, 2023
    Applicant: DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jong-Sung YU, Caleb GYAN-BARIMAH
  • Publication number: 20230082237
    Abstract: The present invention provides a method for producing a nitrogen-doped highly graphitic porous carbon body, and a nitrogen-doped highly graphitic porous carbon body produced according to the same. Also, the present invention provides a method for producing a sulfur and nitrogen double-doped highly graphitic porous carbon body, a sulfur and nitrogen double-doped highly graphitic porous carbon body produced according to the same, and an electrode catalyst for a fuel cell and/or a water electrolysis reaction comprising the carbon body.
    Type: Application
    Filed: December 4, 2020
    Publication date: March 16, 2023
    Inventors: Jong Sung YU, Ha Young LEE
  • Patent number: 11506626
    Abstract: An electrode composed of a substrate including a graphene layer coated on a first metal; and a complex including a second metal deposited on the substrate and a hydroxide of the first metal, where the complex is in the form of core-shell in which the second metal is a core and the hydroxide of the first metal is a shell, and the second metal has a higher standard reduction potential than the first metal. The graphene-coated metal foam of the present invention is the first case that proves not only theoretically but also by experiment that the remarkable catalytic ability reducing other metals (Au, Pt, Ag, and Cu, etc.) with a higher reduction potential than the metal by graphene coated on the metal surface it electroless deposition without additional reductant or electrical reduction conditions is due to the electrical double layer or interfacial dipole induced between the graphene and the metal.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: November 22, 2022
    Assignees: DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGY, GLOBAL FRONTIER CENTER FOR MULTISCALE ENERGY SYSTEMS
    Inventors: Jong Sung Yu, Chunfei Zhang
  • Patent number: 11417872
    Abstract: Provided are a porous inorganic insulator-sulfur composite and a lithium-sulfur battery including the same. More particularly, provided are a composite having sulfur supported in pores of a porous inorganic insulator, a cathode for lithium-sulfur batteries or an interlayer, which includes the composite, and a lithium-sulfur battery including the cathode or the interlayer.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: August 16, 2022
    Assignee: DAEGU GYEONGBUK INSTITUTE OF SCHIENCE & TECHNOLOGY
    Inventors: Jong Sung Yu, Byong-June Lee
  • Patent number: 11260368
    Abstract: The present invention relates to a method of reducing a metal oxide comprising the steps of preparing a mixture by mixing a metal oxide and a metal hydride (step 1) and reducing the mixture by heat treatment (step 2) and a method of producing a photocatalyst using the same, and The method of reducing a metal oxide of the present invention can easily reduce such metal oxides as TiO2, ZrO2, V2O3, and Fe2O3.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: March 1, 2022
    Assignee: DAEGU GYEONGBUK INSTITUTE OF SCIENCE & TECHNOLOGY
    Inventor: Jong-Sung Yu
  • Publication number: 20210359311
    Abstract: An electrode catalyst is configured such that non-noble metal particles, noble metal particles or nitride-doped noble metal particles are supported on a carbon support, wherein the carbon support has a 2D planar crystal structure or a 3D polyhedral crystal structure and is doped with nitrogen, thereby exhibiting increased catalytic activity.
    Type: Application
    Filed: December 28, 2020
    Publication date: November 18, 2021
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, Daegu Gyeongbuk Institute of Science and Technology
    Inventors: Eun Jik LEE, Jee Youn HWANG, Ji Hoon JANG, Ha Young LEE, Jong Sung YU
  • Publication number: 20200044239
    Abstract: Provided are a porous inorganic insulator-sulfur composite and a lithium-sulfur battery including the same. More particularly, provided are a composite having sulfur supported in pores of a porous inorganic insulator, a cathode for lithium-sulfur batteries or an interlayer, which includes the composite, and a lithium-sulfur battery including the cathode or the interlayer.
    Type: Application
    Filed: July 17, 2019
    Publication date: February 6, 2020
    Inventors: Jong Sung YU, Byong-June LEE
  • Publication number: 20190277794
    Abstract: An electrode composed of a substrate including a graphene layer coated on a first metal; and a complex including a second metal deposited on the substrate and a hydroxide of the first metal, where the complex is in the form of core-shell in which the second metal is a core and the hydroxide of the first metal is a shell, and the second metal has a higher standard reduction potential than the first metal. The graphene-coated metal foam of the present invention is the first case that proves not only theoretically but also by experiment that the remarkable catalytic ability reducing other metals (Au, Pt, Ag, and Cu, etc.) with a higher reduction potential than the metal by graphene coated on the metal surface it electroless deposition without additional reductant or electrical reduction conditions is due to the electrical double layer or interfacial dipole induced between the graphene and the metal.
    Type: Application
    Filed: March 7, 2019
    Publication date: September 12, 2019
    Applicant: DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jong Sung YU, Chunfei ZHANG
  • Publication number: 20180318795
    Abstract: The present invention relates to a method of reducing a metal oxide comprising the steps of preparing a mixture by mixing a metal oxide and a metal hydride (step 1) and reducing the mixture by heat treatment (step 2) and a method of producing a photocatalyst using the same, and The method of reducing a metal oxide of the present invention can easily reduce such metal oxides as TiO2, ZrO2, V2O3, and Fe2O3.
    Type: Application
    Filed: September 30, 2016
    Publication date: November 8, 2018
    Inventor: Jong-Sung YU
  • Patent number: 9415351
    Abstract: The present invention relates to a reverse osmosis membrane including: a porous support; and a polyamide active layer formed on the porous support and including zeolite, surface-treated with a compound having at least one functional group selected from a group consisting of an amino group and a glycidyl group, and a method of manufacturing the same.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: August 16, 2016
    Assignees: LG CHEM, LTD., KOREA UNIVERSITY RESEARCH & BUSINESS FOUNDATION
    Inventors: Young-Ju Lee, Jong-Sung Yu, Jae-Hong Kim, Chong-Kyu Shin, Yun-Kyung Kim