Patents by Inventor Songhun Yoon

Songhun Yoon 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).

  • High power secondary battery system comprising asymmetric charged cells
    Patent number: 8846224
    Abstract: Disclosed herein is a battery system including two or more kinds of cell lines having different charge and discharge characteristics, wherein each cell line includes one or more battery cells connected in series with each other. In the battery system according to the present invention, the battery cells of at least one cell line exhibit a high-rate charge characteristic, whereas the battery cells of at least another cell line exhibit a high-rate discharge characteristic. Consequently, the high-rate charge and discharge characteristics are improved, and the balance between the charge and discharge characteristics is maintained, whereby the battery system according to the present invention is used as a power source having a high power.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: September 30, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Jens M. Paulsen, Songhun Yoon, Hong-Kyu Park
  • Electrode material including clay mineral and electrochemical cell employed with the same
    Patent number: 8334070
    Abstract: Provided is an electrode material, which contains an electrode active material, comprising a clay mineral in an amount of the range of 5% by weight or less based on the total weight of the electrode material for increasing the mechanical strength of the electrode material and improving the impregnation ability of an electrolyte.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: December 18, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Ji Heon Ryu, Songhun Yoon, HanHo Lee, Eun Ju Lee
  • HIGH POWER SECONDARY BATTERY SYSTEM COMPRISING ASYMMETRIC CHARGED CELLS
    Publication number: 20110135972
    Abstract: Disclosed herein is a battery system including two or more kinds of cell lines having different charge and discharge characteristics, wherein each cell line includes one or more battery cells connected in series with each other. In the battery system according to the present invention, the battery cells of at least one cell line exhibit a high-rate charge characteristic, whereas the battery cells of at least another cell line exhibit a high-rate discharge characteristic. Consequently, the high-rate charge and discharge characteristics are improved, and the balance between the charge and discharge characteristics is maintained, whereby the battery system according to the present invention is used as a power source having a high power.
    Type: Application
    Filed: November 2, 2010
    Publication date: June 9, 2011
    Applicant: LG CHEM, LTD.
    Inventors: Jens M. Paulsen, Songhun Yoon, Hong-Kyu Park
  • ELECTRODE MATERIAL INCLUDING CLAY MINERAL AND ELECTROCHEMICAL CELL EMPLOYED WITH THE SAME
    Publication number: 20080063939
    Abstract: Provided is an electrode material, which contains an electrode active material, comprising a clay mineral in an amount of the range of 5% by weight or less based on the total weight of the electrode material for increasing the mechanical strength of the electrode material and improving the impregnation ability of an electrolyte.
    Type: Application
    Filed: September 11, 2007
    Publication date: March 13, 2008
    Applicant: LG CHEM, LTD.
    Inventors: Ji Heon RYU, Songhun YOON, HanHo LEE, Eun Ju LEE