Patents by Inventor Ok-Ju WOO

Ok-Ju WOO 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).

  • DISCHARGE METHOD OF BATTERY
    Publication number: 20250023127
    Abstract: The present invention relates to a discharge method of a battery, comprising: a first discharging step of discharging a battery by connecting the battery and a power converter and applying voltage thereto; and a second discharging step of discharging the battery by applying a reverse voltage of the voltage of the first discharging step, after the first discharging step. According to the present invention, electrical energy of a battery can be recovered and recycled, and an electrically safe state can be secured in a subsequent disassembly process by putting the battery in a completely discharged state in which normal operation is impossible.
    Type: Application
    Filed: December 16, 2022
    Publication date: January 16, 2025
    Applicants: POSCO HOLDINGS INC., RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
    Inventors: Tae-Joon PARK, Seung-Hee LEE, Lae-Kyoung LEE, Ok-Ju WOO, Hyeon-Gon WI, Kwon-Young CHOI