Patents by Inventor Ahyoun LIM

Ahyoun LIM 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).

  • High temperature-type unitized regenerative fuel cell using water vapor and method of operating the same
    Patent number: 11127967
    Abstract: Disclosed is a high temperature-type unitized regenerative fuel cell using water vapor, which exhibits high hydrogen (H2) production efficiency and superior power generation ability.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: September 21, 2021
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hyun Seo Park, Ahyoun Lim, Ju Sung Lee, Hee-Young Park, So Young Lee, Jin Young Kim, Sung Jong Yoo, Dirk Henkensmeier, Jong Hyun Jang, Hyoung-Juhn Kim
  • Iridium oxide electrodeposited porous titanium composite layer of polymer electrolyte membrane water electrolysis apparatus, method for preparing the same, and polymer electrolyte membrane water electrolysis apparatus using the same
    Patent number: 10975476
    Abstract: The present disclosure relates to an IrO2 electrodeposited porous titanium composite layer of a polymer electrolyte membrane water electrolysis apparatus serving as both a diffusion layer and an oxygen electrode, the apparatus including: a porous titanium (Ti) layer; and an electrodeposited iridium oxide (IrO2) layer on the porous Ti layer. The IrO2 layer may be uniformly deposited on a porous Ti layer through an electrolysis process, and the electrodeposited IrO2 layer may play multiple roles as not only a catalyst layer toward oxygen evolution reaction (OER) on the surface of the Ti layer, but also a corrosion-protection layer which prevents an inner Ti layer from corrosion.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: April 13, 2021
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jong Hyun Jang, Seunghoe Choe, Youngseung Na, Hye Jin Lee, Ahyoun Lim, Hyoung-Juhn Kim, Dirk Henkensmeier, Sung Jong Yoo, Jin Young Kim, So Young Lee, Hyun Seo Park
  • HIGH TEMPERATURE-TYPE UNITIZED REGENERATIVE FUEL CELL USING WATER VAPOR AND METHOD OF OPERATING THE SAME
    Publication number: 20210066741
    Abstract: Disclosed is a high temperature-type unitized regenerative fuel cell using water vapor, which exhibits high hydrogen (H2) production efficiency and superior power generation ability.
    Type: Application
    Filed: March 10, 2020
    Publication date: March 4, 2021
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hyun Seo PARK, Ahyoun LIM, Ju Sung LEE, Hee-Young PARK, So Young LEE, Jin Young KIM, Sung Jong YOO, Dirk HENKENSMEIER, Jong Hyun JANG, Hyoung-Juhn KIM
  • OXYGEN ELECTRODE COMPRISING DUAL PLATING CATALYST, WATER ELECTROLYSIS DEVICE AND REGENERATIVE FUEL CELL COMPRISING THE SAME, AND METHOD FOR PREPARING THE OXYGEN ELECTRODE
    Publication number: 20200131657
    Abstract: The present disclosure relates to an oxygen electrode comprising a dual plating catalyst, a water electrolysis device and a regenerative fuel cell comprising the same, and a method for preparing the oxygen electrode.
    Type: Application
    Filed: October 2, 2019
    Publication date: April 30, 2020
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hyun Seo PARK, Jong Hyun JANG, Hee-Young PARK, Jin Young KIM, So Young LEE, Sung Jong YOO, Dirk Henkensmeier, Hyoung-Juhn KIM, Ahyoun LIM, Junyoung KIM, Hye Jin LEE
  • IRIDIUM OXIDE ELECTRODEPOSITED POROUS TITANIUM COMPOSITE LAYER OF POLYMER ELECTROLYTE MEMBRANE WATER ELECTROLYSIS APPARATUS, METHOD FOR PREPARING THE SAME, AND POLYMER ELECTROLYTE MEMBRANE WATER ELECTROLYSIS APPARATUS USING THE SAME
    Publication number: 20190161868
    Abstract: The present disclosure relates to an IrO2 electrodeposited porous titanium composite layer of a polymer electrolyte membrane water electrolysis apparatus serving as both a diffusion layer and an oxygen electrode, the apparatus including: a porous titanium (Ti) layer; and an electrodeposited iridium oxide (IrO2) layer on the porous Ti layer. The IrO2 layer may be uniformly deposited on a porous Ti layer through an electrolysis process, and the electrodeposited IrO2 layer may play multiple roles as not only a catalyst layer toward oxygen evolution reaction (OER) on the surface of the Ti layer, but also a corrosion-protection layer which prevents an inner Ti layer from corrosion.
    Type: Application
    Filed: November 21, 2018
    Publication date: May 30, 2019
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jong Hyun JANG, Seunghoe CHOE, Youngseung NA, Hye Jin LEE, Ahyoun LIM, Hyoung-Juhn KIM, Dirk HENKENSMEIER, Sung Jong YOO, Jin Young KIM, So Young LEE, Hyun Seo PARK