Patents by Inventor Jongheon KWAK

Jongheon KWAK 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).

  • Secondary battery solid electrolyte composition and solid electrolyte prepared therefrom
    Patent number: 11417909
    Abstract: A solid electrolyte composition for a lithium secondary battery including a fluorine-based polymer having grafted thereon a unit comprising alkylene oxide group and a crosslinkable functional group. The polymer may be formed by a process including grafting a monomer on a fluorine-based polymer, where the monomer includes alkylene oxide group and a crosslinkable functional group. Also disclosed is a solid electrolyte for a secondary battery formed by thermally curing the composition. By graft copolymerizing a monomer including alkylene oxide group and a crosslinkable functional group on a fluorine-based polymer having high lithium ion conductivity, the solid electrolyte is capable of providing a solid electrolyte for a secondary battery having significantly enhanced solid electrolyte ion conductivity and electrochemical stability.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: August 16, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Sujee Kwon, Jeongae Yoon, Sung Soo Yoon, Kyung Oh Kim, Jonghyun Chae, Yeonju Lee, Daeil Kim, Lucia Kim, Jongheon Kwak
  • SECONDARY BATTERY SOLID ELECTROLYTE COMPOSITION AND SOLID ELECTROLYTE PREPARED THEREFROM
    Publication number: 20200212484
    Abstract: A solid electrolyte composition for a lithium secondary battery including a fluorine-based polymer having grafted thereon a unit comprising alkylene oxide group and a crosslinkable functional group. The polymer may be formed by a process including grafting a monomer on a fluorine-based polymer, where the monomer includes alkylene oxide group and a crosslinkable functional group. Also disclosed is a solid electrolyte for a secondary battery formed by thermally curing the composition. By graft copolymerizing a monomer including alkylene oxide group and a crosslinkable functional group on a fluorine-based polymer having high lithium ion conductivity, the solid electrolyte is capable of providing a solid electrolyte for a secondary battery having significantly enhanced solid electrolyte ion conductivity and electrochemical stability.
    Type: Application
    Filed: July 20, 2018
    Publication date: July 2, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Sujee KWON, Jeongae YOON, Sung Soo YOON, Kyung Oh KIM, Jonghyun CHAE, Yeonju LEE, Daeil KIM, Lucia KIM, Jongheon KWAK