Patents by Inventor Eun Hui PARK

Eun Hui PARK 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 ION BATTERY, PREPARING METHOD OF THE SAME, AND RECHARGEABLE LITHIUM ION BATTERY COMPRISING THE SAME
    Publication number: 20210159483
    Abstract: The present disclosure relates to a positive electrode active material for rechargeable lithium ion batteries and a method of preparing the positive electrode active material, in which a compound including sulfur is used as an additive in a wet treatment process to remove residual lithium impurities (LiOH, Li2CO3) present on a surface of the positive electrode active material, such that the residual lithium impurities are effectively removed without loss of capacity while a Li-S compound coating layer is formed on the surface thereof, thereby reducing resistance and leakage current.
    Type: Application
    Filed: November 24, 2020
    Publication date: May 27, 2021
    Applicant: POSCO CHEMICAL CO., LTD.
    Inventors: Sun Tai KIM, Hye Won PARK, Eun Hui PARK