Patents by Inventor Jin On Kim

Jin On 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).

  • Patent number: 7252906
    Abstract: Disclosed is a positive active material for a lithium secondary battery and a preparation method of the same that can improve cycle-life characteristics and storage characteristics at a high temperature by improving structural safety characteristics and electrochemical characteristics, by forming an overlayer comprising an oxide glass phase on the surface of the positive active material, and a lithium secondary battery comprising the positive active material.
    Type: Grant
    Filed: January 24, 2002
    Date of Patent: August 7, 2007
    Assignee: LG Chem, Ltd.
    Inventors: Hong-Kyu Park, Yong-Hoon Kwon, Seong-Yong Park, Mi-Seon Kwak, Jong-Moon Yoon, Joon-Sung Bae, Jin-On Kim
  • Patent number: 7235193
    Abstract: This invention relates to complex lithium metal oxides, which are cathode active materials of a lithium or lithium ion secondary battery with enhanced cycle life and safety, and a process for preparation thereof. The core particles are complex lithium metal oxides capable of absorbing, storing and emitting lithium ions, and a coating layer comprised of amorphous complex lithium cobalt oxides that are formed on the surface of the core particle, which is structurally stable and inactive with electrolytes. Because the amorphous complex lithium cobalt oxides are inactive with electrolytes, the oxides stabilize the surface structure of the complex lithium metal oxide and improve on high temperature storage properties, as well as safety and cycle life.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: June 26, 2007
    Assignee: LG Chem. Ltd.
    Inventors: Hong-Kyu Park, Yong Hoon Kwon, Seong Yong Park, Jin On Kim, Ki Young Lee
  • Publication number: 20070122713
    Abstract: Disclosed is a positive active material for a lithium secondary battery and a preparation method of the same that can improve cycle-life characteristics and storage characteristics at a high temperature by improving structural safety characteristics and electrochemical characteristics, by forming an overlayer comprising an oxide glass phase on the surface of the positive active material, and a lithium secondary battery comprising the positive active material.
    Type: Application
    Filed: December 22, 2006
    Publication date: May 31, 2007
    Inventors: Hong-Kyu Park, Yong-Hoon Kwon, Seong-Yong Park, Mi-Seon Kwak, Jong-Moon Yoon, Joon-Sung Bae, Jin-On Kim
  • Publication number: 20070122338
    Abstract: Disclosed is a positive active material for a lithium secondary battery and a preparation method of the same, in particular a positive active material and preparation method of the same that can improve cycle-life characteristics at a high temperature and room temperature, and storage characteristics at a high temperature. The present invention has the effect of providing a positive active material and preparation method of the same that can improve cycle-life characteristics at room temperature and at a high temperature, and storage characteristics at a high temperature, by coating the surface of the lithium manganese spinel oxide particles with a lithium metal complex oxide.
    Type: Application
    Filed: December 22, 2006
    Publication date: May 31, 2007
    Inventors: Hong-Kyu Park, Seong-Yong Park, Yong-Hoon Kwon, Joon-Sung Bae, Ki-Young Lee, Jin-On Kim
  • Publication number: 20040200998
    Abstract: This invention relates to complex lithium metal oxides, which are cathode active materials of a lithium or lithium ion secondary battery with enhanced cycle life and safety, and a process for preparation thereof. The core particles are complex lithium metal oxides capable of absorbing, storing and emitting lithium ions, and a coating layer comprised of amorphous complex lithium cobalt oxides that are formed on the surface of the core particle, which is structurally stable and inactive with electrolytes. Because the amorphous complex lithium cobalt oxides are inactive with electrolytes, the oxides stabilize the surface structure of the complex lithium metal oxide and improve on high temperature storage properties, as well as safety and cycle life.
    Type: Application
    Filed: February 26, 2004
    Publication date: October 14, 2004
    Inventors: Hong-Kyu Park, Yong Hoon Kwon, Seong Yong Park, Jin On Kim, Ki Young Lee
  • Publication number: 20040042954
    Abstract: The present invention relates to an anode material for a battery and a preparation method thereof, and particularly to surface-treated carbon that has a large capacity and superior room temperature and high temperature cycle life properties, and that comprises a carbon core and a coating layer containing a fluorine-type organometal salt, and thus can be used as an anode material for a battery; and a preparation method thereof. A lithium or lithium ion secondary battery comprising the surface-treated carbon as an anode material has improved high temperature cycle life properties and stability.
    Type: Application
    Filed: June 11, 2003
    Publication date: March 4, 2004
    Inventors: Hong-Kyu Park, Seong-Yong Park, Yong-Hoon Kwon, Jin-On Kim, Yeon-Hee Lee, Keun-Yung Im, Ki-Young Lee
  • Publication number: 20030148182
    Abstract: Disclosed is a positive active material for a lithium secondary battery and a preparation method of the same that can improve cycle-life characteristics and storage characteristics at a high temperature by improving structural safety characteristics and electrochemical characteristics, by forming an overlayer comprising an oxide glass phase on the surface of the positive active material, and a lithium secondary battery comprising the positive active material.
    Type: Application
    Filed: October 2, 2002
    Publication date: August 7, 2003
    Inventors: Hong-Kyu Park, Yong-Hoon Kwon, Seong-Yong Park, Mi-Seon Kwak, Jong-Moon Yoon, Jong-Sung Bae, Jin-On Kim
  • Publication number: 20030108794
    Abstract: Disclosed is a positive active material for a lithium secondary battery and a preparation method of the same, in particular a positive active material and preparation method of the same that can improve cycle-life characteristics at a high temperature and room temperature, and storage characteristics at a high temperature.
    Type: Application
    Filed: November 7, 2002
    Publication date: June 12, 2003
    Inventors: Hong-Kyu Park, Seong-Yong Park, Yong-Hoon Kwon, Jong-Sung Bae, Ki-Young Lee, Jin-On Kim