Patents by Inventor Duk-Hyung Yum

Duk-Hyung Yum 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).

  • Lithium secondary battery with high safety and manufacturing method thereof
    Patent number: 8017264
    Abstract: A lithium secondary battery capable of preventing explosion or firing caused by the increase of inner pressure due to misusage is disclosed. The lithium secondary battery includes an electrode assembly having an anode plate, a cathode plate and a separator, a package having a receiving portion for receiving the electrode assembly and sealed and filled with electrolyte together with the electrode assembly, and an adhesive layer at least partially formed on an outer surface of the package. The lithium secondary battery functions as an explosion-proof safety device for preventing the package from exploding due to abrupt breakage of the package when the package is expanded due to the increase of inner pressure of the battery over a critical value.
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: September 13, 2011
    Assignee: Kokam Co., Ltd.
    Inventors: Ji-Jun Hong, Duk-Hyung Yum, Sung-Wook Moon
  • Lithium secondary battery with high safety and manufacturing method thereof
    Publication number: 20050069763
    Abstract: A lithium secondary battery capable of preventing explosion or firing caused by the increase of inner pressure due to misusage is disclosed. The lithium secondary battery includes an electrode assembly having an anode plate, a cathode plate and a separator, a package having a receiving portion for receiving the electrode assembly and sealed and filled with electrolyte together with the electrode assembly, and an adhesive layer at least partially formed on an outer surface of the package. The lithium secondary battery functions as an explosion-proof safety device for preventing the package from exploding due to abrupt breakage of the package when the package is expanded due to the increase of inner pressure of the battery over a critical value.
    Type: Application
    Filed: June 8, 2004
    Publication date: March 31, 2005
    Inventors: Ji-Jun Hong, Duk-Hyung Yum, Sung-Wook Moon