Patents by Inventor Sung Wook DOO

Sung Wook DOO 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, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME
    Publication number: 20200343551
    Abstract: A positive active material for a rechargeable lithium battery includes a nickel-based lithium metal oxide having a layered crystal structure and a coating layer including a lithium-metal oxide selectively disposed on (003) crystalline plane of the nickel-based lithium metal oxide, wherein the nickel-based lithium metal oxide exists as single particles.
    Type: Application
    Filed: April 24, 2020
    Publication date: October 29, 2020
    Inventors: Kwanghwan CHO, Kyu Tae LEE, Hanseul KIM, Sung Wook DOO, Seongmin KIM
  • POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME
    Publication number: 20200343550
    Abstract: A positive active material for a rechargeable lithium battery includes a nickel-based lithium metal oxide having a layered crystal structure, and a coating layer including a lithium-metal oxide disposed selectively disposed on (003) crystalline plane of the nickel-based lithium metal oxide, wherein the positive active material includes at least one secondary particle including an agglomerate of two or more primary particles.
    Type: Application
    Filed: April 24, 2020
    Publication date: October 29, 2020
    Inventors: Kwanghwan CHO, Kyu Tae LEE, Hanseul KIM, Sung Wook DOO, Seongmin KIM
  • COMPOSITE POSITIVE ELECTRODE ACTIVE MATERIAL, METHOD FOR PREPARING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING SAME
    Publication number: 20200251719
    Abstract: A composite positive electrode active material includes: a lithium transition metal oxide having an ?-NaFeO2 layered crystal structure; and a coating film including a lithium metal oxide on a (003) crystal plane of the lithium transition metal oxide, a method of preparing the same, and a lithium secondary battery including a positive electrode including the composite positive electrode active material.
    Type: Application
    Filed: April 24, 2020
    Publication date: August 6, 2020
    Inventors: Hyunjei CHUNG, Hanseul KIM, Sung Wook DOO, Kyu Tae LEE, Jungwoo LIM, Aram CHOI