Patents by Inventor Sung-Kyun Jang

Sung-Kyun Jang 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).

  • Positive active material for rechargeable lithium battery and method of preparing same
    Patent number: 6589695
    Abstract: Disclosed is a method of preparing a positive active material for a rechargeable lithium battery. In this method, a lithium salt is reflux-reacted with a metal salt in a basic solution. The positive active material has a spherical or sperical-like form, diameter of 10 nm to 10 &mgr;m, and a surface area of 0.1 to 5 m2/g.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: July 8, 2003
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Ho-Jin Kweon, Sung-Kyun Jang, Young-Uk Kwon
  • Positive active material for rechargeable lithium battery and method of preparing same
    Publication number: 20010016284
    Abstract: Disclosed is a method of preparing a positive active material for a rechargeable lithium battery. In this method, a lithium salt is reflux-reacted with a metal salt in a basic solution. The resulting positive active material is a compound represented by formulas 1 to 14. The positive active material has a spherical or spherical-like form, a diameter of 10 nm to 10 &mgr;m, and a surface area of 0.1 to 5 m2/g.
    Type: Application
    Filed: January 22, 2001
    Publication date: August 23, 2001
    Inventors: Ho-Jin Kweon, Sung-Kyun Jang, Young-Uk Kwon