Patents by Inventor Jungseok Kim

Jungseok Kim 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).

  • Cylindrical lithium ion secondary battery
    Patent number: 7993770
    Abstract: In a cylindrical lithium ion secondary battery, the width of an electrode tab positioned at a center of an electrode assembly is extended so that it serves as a center pin and functions to release heat. Thus, it is not necessary to separately insert a center pin, thereby reducing the manufacturing cost and steps. The cylindrical lithium ion secondary battery comprises an electrode assembly, a case for receiving the electrode assembly, and a cap assembly for sealing the top opening of the case. The electrode assembly comprises a positive electrode plate and negative electrode plate. The positive electrode plate has a positive electrode tab, a positive active material region, a positive uncoated region, and a positive current collector exposed through the positive uncoated region.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: August 9, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Yooeup Hyung, Jungseok Kim, Yongtae Kim, Sangbong Nam
  • Cylindrical lithium ion secondary battery
    Publication number: 20070154797
    Abstract: In a cylindrical lithium ion secondary battery, the width of an electrode tab positioned at a center of an electrode assembly is extended so that it serves as a center pin and functions to release heat. Thus, it is not necessary to separately insert a center pin, thereby reducing the manufacturing cost and steps. The cylindrical lithium ion secondary battery comprises an electrode assembly, a case for receiving the electrode assembly, and a cap assembly for sealing the top opening of the case. The electrode assembly comprises a positive electrode plate and negative electrode plate. The positive electrode plate has a positive electrode tab, a positive active material region, a positive uncoated region, and a positive current collector exposed through the positive uncoated region.
    Type: Application
    Filed: December 22, 2006
    Publication date: July 5, 2007
    Inventors: Yooeup Hyung, Jungseok Kim, Yongtae Kim, Sangbong Nam