Patents by Inventor Jung Whan Song

Jung Whan Song 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).

  • Lithium Secondary Battery
    Publication number: 20210344002
    Abstract: The present invention provides a lithium secondary battery which includes a positive electrode including a first lithium cobalt oxide and a second lithium cobalt oxide which have different average particle diameters (D50) from each other, a negative electrode including first graphite and second graphite which have different average particle diameters (D50) from each other, and an electrolyte including a first additive as a nitrile-based compound, wherein the first lithium cobalt oxide and the second lithium cobalt oxide each independently contain aluminum in a concentration of 2,500 ppm to 4,000 ppm.
    Type: Application
    Filed: January 23, 2020
    Publication date: November 4, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Do Hwa Jung, Tae Gyun Noh, Ki Woong Kim, Woo Sirl Lee, Yoon Jae Lee, Jung Whan Song