Patents by Inventor Woon Jo Kim

Woon Jo Kim 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: 11489173
    Abstract: The present invention relates to a fuel cell and a fuel cell stack comprising the same, and according to one aspect of the present invention, there is provided a fuel cell comprising a membrane-electrode assembly having a first surface and a second surface opposite to the first surface, wherein an anode electrode and a cathode electrode are each disposed on the first surface; an end plate disposed apart at a predetermined interval on the second surface; a first gas diffusion layer disposed on the anode electrode; a second gas diffusion layer disposed on the cathode electrode; a first separating plate disposed on the first gas diffusion layer and having a plurality of flow channels; and a second separating plate disposed on the second gas diffusion layer and having a plurality of flow channels.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: November 1, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Sung Hyun Yun, Joo Yong Park, Do Young Kim, Woon Jo Kim, Kyung Mun Kang, Jae Choon Yang
  • Patent number: 11424467
    Abstract: The present specification relates to a method for manufacturing a membrane electrode assembly and a laminate. Specifically, the present specification relates to a method for manufacturing a membrane electrode assembly including an anode, a cathode, and an electrolyte membrane provided between the anode and the cathode, and a laminate which is an intermediate laminated during the manufacture of the membrane electrode assembly.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: August 23, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Doyoung Kim, Woon Jo Kim, Jooyong Park, Ji Hun Kim, Jae Choon Yang, Sunghyun Yun
  • Patent number: 11349139
    Abstract: Methods for manufacturing a catalyst layer of a membrane-electrode assembly may include preparing a solution including an ionomer and a solvent, forming a catalyst slurry composition by adding a carbon powder catalyst to the solution, forming a catalyst layer by applying the catalyst slurry composition onto a base material, and then drying the catalyst slurry composition.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: May 31, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Lee Jin Ghil, Doyoung Kim, Woon Jo Kim
  • Publication number: 20210083308
    Abstract: The present specification relates to a method for manufacturing a membrane-electrode assembly, a membrane-electrode assembly manufactured therefrom, and a fuel cell including the same.
    Type: Application
    Filed: January 17, 2019
    Publication date: March 18, 2021
    Inventors: Lee Jin GHIL, Doyoung KIM, Woon Jo KIM
  • Publication number: 20210083302
    Abstract: The present invention relates to a fuel cell and a fuel cell stack comprising the same, and according to one aspect of the present invention, there is provided a fuel cell comprising a membrane-electrode assembly having a first surface and a second surface opposite to the first surface, wherein an anode electrode and a cathode electrode are each disposed on the first surface; an end plate disposed apart at a predetermined interval on the second surface; a first gas diffusion layer disposed on the anode electrode; a second gas diffusion layer disposed on the cathode electrode; a first separating plate disposed on the first gas diffusion layer and having a plurality of flow channels; and a second separating plate disposed on the second gas diffusion layer and having a plurality of flow channels.
    Type: Application
    Filed: January 31, 2019
    Publication date: March 18, 2021
    Inventors: Sung Hyun YUN, Joo Yong PARK, Do Young KIM, Woon Jo KIM, Kyung Mun KANG, Jae Choon YANG
  • Publication number: 20210075048
    Abstract: The present specification relates to a method for manufacturing a membrane electrode assembly and a laminate. Specifically, the present specification relates to a method for manufacturing a membrane electrode assembly including an anode, a cathode, and an electrolyte membrane provided between the anode and the cathode, and a laminate which is an intermediate laminated during the manufacture of the membrane electrode assembly.
    Type: Application
    Filed: January 17, 2019
    Publication date: March 11, 2021
    Inventors: Doyoung KIM, Woon Jo KIM, Jooyong PARK, Ji Hun KIM, Jae Choon YANG, Sunghyun YUN
  • Patent number: 10079395
    Abstract: A concentration of a fuel supplied to a fuel cell and a heat exchange rate of a heat exchanger are controlled simultaneously in order to maintain a temperature of fuel cell stack and a diluted fuel concentration that is supplied to the fuel cell stack in a target level. Further, by appropriately responding to an exterior temperature changes or unexpected fuel cell performance changes, it is possible to improve a system efficiency and stability of fuel cell operation and to regulate the fuel concentration quickly and accurately compared to a prior sensor-less concentration controller.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: September 18, 2018
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Heung Yong Ha, Myunggi An, Woon Jo Kim
  • Publication number: 20140154599
    Abstract: A concentration of a fuel supplied to a fuel cell and a heat exchange rate of a heat exchanger are controlled simultaneously in order to maintain a temperature of fuel cell stack and a diluted fuel concentration that is supplied to the fuel cell stack in a target level. Further, by appropriately responding to an exterior temperature changes or unexpected fuel cell performance changes, it is possible to improve a system efficiency and stability of fuel cell operation and to regulate the fuel concentration quickly and accurately compared to a prior sensor-less concentration controller.
    Type: Application
    Filed: December 2, 2013
    Publication date: June 5, 2014
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Heung Yong HA, Myunggi An, Woon Jo Kim