Patents by Inventor Wooyeong Choi

Wooyeong Choi 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).

  • ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD OF PREPARING THE SAME, AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME
    Publication number: 20240178376
    Abstract: An anode active material for a lithium secondary battery includes a plurality of composites that each includes a core, and a first shell layer surrounding the core, and a second shell layer surrounding the plurality of composites. The composites may each include metal particles and carbon, and a distance between adjacent composites among the composites may be in a range of 80 nanometers (nm) to 300 nm.
    Type: Application
    Filed: November 22, 2023
    Publication date: May 30, 2024
    Applicant: HANSOL CHEMICAL CO., LTD
    Inventors: Hyeonwoo Shim, Sunghwan Kang, Jeonghun Lee, Wooyeong Choi, Seman Kwon
  • ANODE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME
    Publication number: 20240178377
    Abstract: Provided are an anode active material including a core including metal particles, and a shell layer formed on an outer portion of the core, in which the shell layer includes metal carbide particles and a carbon-based material, and a number density (number/?m2) of the metal carbide particles in the shell layer is 50 or more to 100 or less, a method of preparing the same, and a lithium secondary battery including the same.
    Type: Application
    Filed: November 27, 2023
    Publication date: May 30, 2024
    Applicant: HANSOL CHEMICAL CO., LTD.
    Inventors: Jeonghun Lee, Hyeonwoo Shim, Wooyeong Choi, Jongha Lee, Seman Kwon