Patents by Inventor Donghee GUEON

Donghee GUEON 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).

  • Ceria-carbon-sulfur composite, method for preparing same, and positive electrode and lithium-sulfur battery comprising same
    Patent number: 12519101
    Abstract: A ceria-carbon-sulfur (CeO2—C—S) composite including a ceria-carbon (CeO2—C) composite in which cylindrical carbon materials having ceria (CeO2) particles bonded to surfaces thereof are entangled and interconnected to each other in three dimensions; and sulfur introduced into at least a portion of an outer surface and an inside of the ceria-carbon composite, a method for preparing the same, and positive electrode for a lithium-sulfur battery and a lithium-sulfur battery including the same.
    Type: Grant
    Filed: April 2, 2024
    Date of Patent: January 6, 2026
    Assignees: LG ENERGY SOLUTION, LTD., SOGANG UNIVERSITY RESEARCH FOUNDATION
    Inventors: Seungbo Yang, Kwonnam Sohn, Jun Hyuk Moon, Doo Kyung Yang, Donghee Gueon, Jeong Tae Hwang
  • POSITIVE ELECTRODE ACTIVE MATERIAL, METHOD OF PREPARING SAME, AND ELECTROCHEMICAL DEVICE INCLUDING SAME
    Publication number: 20250289732
    Abstract: Proposed are a positive electrode active material, a method of preparing the same, and an electrochemical device including the same. Specifically, proposed are a positive electrode active material capable of improving the specific capacity of an electrochemical device through control over the cooling temperature, cooling time, and sintering temperature of a precursor to prepare the positive electrode active material, a method of preparing the same, and an electrochemical device including the same.
    Type: Application
    Filed: March 13, 2025
    Publication date: September 18, 2025
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Sun Hwa YEON, Kyoung Hee SHIN, Chang Soo JIN, Dong Ha KIM, Se Kook PARK, Seung Hae HWANG, Donghee GUEON, Yeon Ji CHOI, Dae Seon HONG
  • CERIA-CARBON-SULFUR COMPOSITE, METHOD FOR PREPARING SAME, AND POSITIVE ELECTRODE AND LITHIUM-SULFUR BATTERY COMPRISING SAME
    Publication number: 20240266504
    Abstract: A ceria-carbon-sulfur (CeO2—C—S) composite including a ceria-carbon (CeO2—C) composite in which cylindrical carbon materials having ceria (CeO2) particles bonded to surfaces thereof are entangled and interconnected to each other in three dimensions; and sulfur introduced into at least a portion of an outer surface and an inside of the ceria-carbon composite, a method for preparing the same, and positive electrode for a lithium-sulfur battery and a lithium-sulfur battery including the same.
    Type: Application
    Filed: April 2, 2024
    Publication date: August 8, 2024
    Applicants: LG ENERGY SOLUTION, LTD., SOGANG UNIVERSITY RESEARCH FOUNDATION
    Inventors: Seungbo YANG, Kwonnam SOHN, Jun Hyuk MOON, Doo Kyung YANG, Donghee GUEON, Jeong Tae HWANG
  • Ceria-carbon-sulfur composite, method for preparing same, and positive electrode and lithium-sulfur battery comprising same
    Patent number: 11978888
    Abstract: A ceria-carbon-sulfur (CeO2—C—S) composite including a ceria-carbon (CeO2—C) composite in which cylindrical carbon materials having ceria (CeO2) particles bonded to surfaces thereof are entangled and interconnected to each other in three dimensions; and sulfur introduced into at least a portion of an outer surface and an inside of the ceria-carbon composite, a method for preparing the same, and positive electrode for a lithium-sulfur battery and a lithium-sulfur battery including the same.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: May 7, 2024
    Assignees: LG ENERGY SOLUTION, LTD., SOGANG UNIVERSITY RESEARCH FOUNDATION
    Inventors: Seungbo Yang, Kwonnam Sohn, Jun Hyuk Moon, Doo Kyung Yang, Donghee Gueon, Jeong Tae Hwang
  • Titania-carbon nanotube-sulfur (TiO-CNT-S) composite and preparing method therefor
    Patent number: 11795063
    Abstract: A titania-carbon-sulfur composite including a titania-carbon composite prepared by mixing cylindrical carbon materials and titania (TiO2-x), in which some oxygen is reduced (i.e., x is less than 2), to have a structure in which cylindrical carbon materials are entangled and interconnected in three dimensions; and sulfur introduced into at least a part of the external surface and inside of the titania-carbon (TiO2—C) composite, and a method for preparing the same.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: October 24, 2023
    Assignees: LG ENERGY SOLUTION, LTD., SOGANG UNIVERSITY RESEARCH FOUNDATION
    Inventors: Seungbo Yang, Eunkyung Cho, Jun Hyuk Moon, Kwonnam Sohn, Doo Kyung Yang, Jaehyun Lee, Donghee Gueon
  • Carbon-sulfur complex, method for producing same, and cathode and lithium-sulfur battery comprising same
    Patent number: 11038194
    Abstract: A carbon-sulfur composite including a carbon aggregate and sulfur, a method for preparing the same, and a positive electrode and a lithium-sulfur battery including the same.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: June 15, 2021
    Assignees: LG CHEM, LTD., SOGANG UNIVERSITY RESEARCH FOUNDATION
    Inventors: Seungbo Yang, Eunkyung Cho, Jun Hyuk Moon, Kwonnam Sohn, Doo Kyung Yang, Donghee Gueon
  • CERIA-CARBON-SULFUR COMPOSITE, METHOD FOR PREPARING SAME, AND POSITIVE ELECTRODE AND LITHIUM-SULFUR BATTERY COMPRISING SAME
    Publication number: 20200343535
    Abstract: A ceria-carbon-sulfur (CeO2—C—S) composite including a ceria-carbon (CeO2—C) composite in which cylindrical carbon materials having ceria (CeO2) particles bonded to surfaces thereof are entangled and interconnected to each other in three dimensions; and sulfur introduced into at least a portion of an outer surface and an inside of the ceria-carbon composite, a method for preparing the same, and positive electrode for a lithium-sulfur battery and a lithium-sulfur battery including the same.
    Type: Application
    Filed: March 13, 2019
    Publication date: October 29, 2020
    Applicants: LG CHEM, LTD., SOGANG UNIVERSITY RESEARCH FOUNDATION
    Inventors: Seungbo YANG, Kwonnam SOHN, Jun Hyuk MOON, Doo Kyung YANG, Donghee GUEON, Jeong Tae HWANG
  • TITANIA-CARBON NANOTUBE-SULFUR (TIO2-X-CNT-S) COMPOSITE AND PREPARING METHOD THEREFOR
    Publication number: 20200255298
    Abstract: A titania-carbon-sulfur composite including a titania-carbon composite prepared by mixing cylindrical carbon materials and titania (TiO2-x), in which some oxygen is reduced (i.e., x is less than 2), to have a structure in which cylindrical carbon materials are entangled and interconnected in three dimensions; and sulfur introduced into at least a part of the external surface and inside of the titania-carbon (TiO2—C) composite, and a method for preparing the same.
    Type: Application
    Filed: September 19, 2018
    Publication date: August 13, 2020
    Applicants: LG CHEM, LTD., SOGANG UNIVERSITY RESEARCH FOUNDATION
    Inventors: Seungbo YANG, Eunkyung CHO, Jun Hyuk MOON, Kwonnam SOHN, Doo Kyung YANG, Jaehyun LEE, Donghee GUEON
  • CARBON-SULFUR COMPLEX, METHOD FOR PRODUCING SAME, AND CATHODE AND LITHIUM-SULFUR BATTERY COMPRISING SAME
    Publication number: 20190123377
    Abstract: A carbon-sulfur composite including a carbon aggregate and sulfur, a method for preparing the same, and a positive electrode and a lithium-sulfur battery including the same.
    Type: Application
    Filed: February 28, 2018
    Publication date: April 25, 2019
    Applicants: LG CHEM, LTD., SOGANG UNIVERSITY RESEARCH FOUNDATION
    Inventors: Seungbo YANG, Eunkyung CHO, Jun Hyuk MOON, Kwonnam SOHN, Doo Kyung YANG, Donghee GUEON