Patents by Inventor Dojoong Lee

Dojoong Lee 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).

  • Publication number: 20230318039
    Abstract: Disclosed is an electrolyte solution for a lithium secondary battery capable of improving the lifetime of a lithium secondary battery, by including a certain amount of magnesium chloride (MgCl2) in the electrolyte to form a stable electrode protective layer that prevents the consumption of salts and additives in the electrolyte solution, and a lithium secondary battery comprising the same. The electrolyte solution for the lithium secondary battery comprises a first solvent comprising a heterocyclic compound containing at least one of an oxygen atom and a sulfur atom; a second solvent comprising at least one of an ether-based compound, an ester-based compound, an amide-based compound, and a carbonate-based compound; a lithium salt; magnesium chloride; and lithium nitrate.
    Type: Application
    Filed: December 16, 2021
    Publication date: October 5, 2023
    Inventors: Dojoong LEE, Kihyun KIM
  • Publication number: 20230231120
    Abstract: A lithium secondary battery comprising a positive electrode including sulfur, a negative electrode including a Li—Mg alloy, and an electrolyte including a furan-based solvent is provided. The lithium secondary battery has improved lifetime characteristics as growth of lithium dendrites and side reaction between polysulfides leached from the positive electrode and lithium at the negative electrode are suppressed due to interaction of the Li—Mg alloy comprised in the negative electrode and the furan-based solvent comprised in the electrolyte.
    Type: Application
    Filed: February 23, 2022
    Publication date: July 20, 2023
    Inventors: Dojoong Lee, Myeongseong Kim, Yunjung Kim, Kihyun Kim