Patents by Inventor Youngmin Pi

Youngmin Pi 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).

  • SEPARATOR STRUCTURE, METHOD FOR PRODUCING THE SAME, AND SECONDARY BATTERY USING THE SAME
    Publication number: 20220302555
    Abstract: Disclosed are a separator for a lithium ion secondary battery, a method for producing the same, and a secondary battery using the same. A separator structure includes a support disposed inside a secondary battery. The support includes a porous polymer matrix, cellulose nano fibers dispersed in the matrix, and inorganic additives dispersed in the matrix, wherein at least some of the inorganic additives are attached to the cellulose nano fibers and are distributed in the matrix.
    Type: Application
    Filed: January 4, 2022
    Publication date: September 22, 2022
    Applicant: LG ELECTRONICS INC.
    Inventors: Dongwook Lee, Munhyuk Lim, Hongjung Kim, Kyungho Jung, Juchul Lee, Junhan Kwon, Keeyong Kim, Sumin Lee, Yongkeon Ahn, Youngmin Pi