Patents by Inventor Heejun Kweon

Heejun Kweon 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).

  • Cathode for lithium air battery comprising hollow structure and method of manufacturing same
    Patent number: 11658311
    Abstract: The present disclosure relates to a cathode for a lithium air battery and a method of manufacturing the same, and more particularly to a method of manufacturing a cathode for a lithium air battery, in which a hollow structure including a carbon material having a nitrogen functional group is synthesized through electrospinning of a thermally decomposable polymer, coating with a nitrogen-containing polymer and heat treatment, and is utilized without a binder as a cathode carbon material for a lithium air battery, thereby increasing the performance and lifespan of a lithium air battery.
    Type: Grant
    Filed: August 11, 2021
    Date of Patent: May 23, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Gwang Seok Oh, Katie Heeyum Lim, Heejun Kweon, Hansung Kim
  • CATHODE FOR LITHIUM AIR BATTERY COMPRISING HOLLOW STRUCTURE AND METHOD OF MANUFACTURING SAME
    Publication number: 20210376335
    Abstract: The present disclosure relates to a cathode for a lithium air battery and a method of manufacturing the same, and more particularly to a method of manufacturing a cathode for a lithium air battery, in which a hollow structure including a carbon material having a nitrogen functional group is synthesized through electrospinning of a thermally decomposable polymer, coating with a nitrogen-containing polymer and heat treatment, and is utilized without a binder as a cathode carbon material for a lithium air battery, thereby increasing the performance and lifespan of a lithium air battery.
    Type: Application
    Filed: August 11, 2021
    Publication date: December 2, 2021
    Inventors: Gwang Seok Oh, Katie Heeyum Lim, Heejun Kweon, Hansung Kim
  • Cathode for lithium air battery comprising hollow structure and method of manufacturing same
    Patent number: 11114673
    Abstract: The present disclosure relates to a cathode for a lithium air battery and a method of manufacturing the same, and more particularly to a method of manufacturing a cathode for a lithium air battery, in which a hollow structure including a carbon material having a nitrogen functional group is synthesized through electrospinning of a thermally decomposable polymer, coating with a nitrogen-containing polymer and heat treatment, and is utilized without a binder as a cathode carbon material for a lithium air battery, thereby increasing the performance and lifespan of a lithium air battery.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: September 7, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Gwang Seok Oh, Katie Heeyum Lim, Heejun Kweon, Hansung Kim
  • CATHODE FOR LITHIUM AIR BATTERY COMPRISING HOLLOW STRUCTURE AND METHOD OF MANUFACTURING SAME
    Publication number: 20200373587
    Abstract: The present disclosure relates to a cathode for a lithium air battery and a method of manufacturing the same, and more particularly to a method of manufacturing a cathode for a lithium air battery, in which a hollow structure including a carbon material having a nitrogen functional group is synthesized through electrospinning of a thermally decomposable polymer, coating with a nitrogen-containing polymer and heat treatment, and is utilized without a binder as a cathode carbon material for a lithium air battery, thereby increasing the performance and lifespan of a lithium air battery.
    Type: Application
    Filed: December 5, 2019
    Publication date: November 26, 2020
    Inventors: Gwang Seok Oh, Katie Heeyum Lim, Heejun Kweon, Hansung Kim