Patents by Inventor Chan Yeong KOONG

Chan Yeong KOONG 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).

  • Positive electrode active material for lithium-sulfur battery, preparation method thereof and lithium-sulfur battery comprising same
    Patent number: 12266789
    Abstract: The present disclosure relates to a positive electrode active material, a preparation method thereof, and a lithium-sulfur battery including the same, more particularly to a positive electrode active material including a particulate structure of a core-shell structure which comprises a core part and a shell part covering the whole surface or a part of the surface of the core part, wherein the core part comprises a sulfur compound, and the shell part comprises a polythiophene acetic acid-polyethylene glycol graft copolymer. The positive electrode active material of the present disclosure has excellent electrochemical reactivity and adsorbs lithium polysulfide to improve capacity and lifetime characteristics of the lithium-sulfur battery.
    Type: Grant
    Filed: August 4, 2021
    Date of Patent: April 1, 2025
    Assignees: LG Energy Solution, Ltd., Seoul National University R&DB Foundation
    Inventors: Soohyun Kim, Jong-Chan Lee, Kihyun Kim, Kwonnam Sohn, Daun Jeong, Chan Yeong Koong
  • POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM-SULFUR BATTERY, PREPARATION METHOD THEREOF AND LITHIUM-SULFUR BATTERY COMPRISING SAME
    Publication number: 20220393157
    Abstract: The present disclosure relates to a positive electrode active material, a preparation method thereof, and a lithium-sulfur battery including the same, more particularly to a positive electrode active material including a particulate structure of a core-shell structure which comprises a core part and a shell part covering the whole surface or a part of the surface of the core part, wherein the core part comprises a sulfur compound, and the shell part comprises a polythiophene acetic acid-polyethylene glycol graft copolymer. The positive electrode active material of the present disclosure has excellent electrochemical reactivity and adsorbs lithium polysulfide to improve capacity and lifetime characteristics of the lithium-sulfur battery.
    Type: Application
    Filed: August 4, 2021
    Publication date: December 8, 2022
    Inventors: Soohyun KIM, Jong-Chan LEE, Kihyun KIM, Kwonnam SOHN, Daun JEONG, Chan Yeong KOONG