Patents by Inventor Sun Yang Kook

Sun Yang Kook 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).

  • Cathode active material for lithium secondary battery, process for preparing the same and reactor for use in the same process
    Publication number: 20070111098
    Abstract: The present invention relates to a cathode active material for a lithium secondary battery and a process for preparing the same. In accordance with the present invention, the cathode active material having a high packing density was designed and synthesized and thus provided is a cathode active material for a lithium secondary battery exhibiting structural stability such as improved characteristics for charge/discharge, service life and high-rate and thermal stability, by modifying surface of the electrode active material with amphoteric or basic compounds capable of neutralizing acid produced around the cathode active material.
    Type: Application
    Filed: November 17, 2004
    Publication date: May 17, 2007
    Inventors: Sun Yang Kook, Lee Hun, Kang Jung, Kim Ho