Patents by Inventor Yunok KIM

Yunok KIM 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).

  • Cathode active material, cathode comprising same, and secondary battery
    Patent number: 11888157
    Abstract: Provided are a cathode active material, a cathode comprising same, and a secondary battery. The cathode active material contains crystal water and a manganese-based metal oxide and has a first crystal phase having a two-dimensional crystal structure and a second crystal phase having a three-dimensional crystal structure, wherein the three-dimensional crystal structure is formed by the combination of manganese in the manganese-based metal oxide and oxygen in the crystal water.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: January 30, 2024
    Assignees: Korea University Research and Business Foundation, Research & Business Foundation Sungkyunkwan University
    Inventors: Won Sub Yoon, Yong Mook Kang, Mi Ru Jo, Junghoon Yang, Yunok Kim
  • CAP ASSEMBLY AND SECONDARY BATTERY COMPRISING SAME
    Publication number: 20240014504
    Abstract: A cap assembly has one side open and is configured to be coupled to an upper portion of a secondary battery can. The cap assembly includes a top cap to be coupled to the upper portion of the secondary battery can; a safety vent under the top cap and configured to be coupled to a distal end of the top cap; and a current interrupt device under the safety vent and having at least a portion that is in contact with the safety vent. The current interrupt device includes a material having a lower hardness than a hardness of the safety vent.
    Type: Application
    Filed: October 21, 2022
    Publication date: January 11, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Taejin KIM, Jisung PARK, Ujin YOON, Yunok KIM, Han Gab SONG
  • CATHODE ACTIVE MATERIAL, CATHODE COMPRISING SAME, AND SECONDARY BATTERY
    Publication number: 20210143420
    Abstract: Provided are a cathode active material, a cathode comprising same, and a secondary battery. The cathode active material contains crystal water and a manganese-based metal oxide and has a first crystal phase having a two-dimensional crystal structure and a second crystal phase having a three-dimensional crystal structure, wherein the three-dimensional crystal structure is formed by the combination of manganese in the manganese-based metal oxide and oxygen in the crystal water.
    Type: Application
    Filed: July 26, 2019
    Publication date: May 13, 2021
    Applicants: DONGGUK UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION, RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Won Sub YOON, Yong Mook KANG, Mi Ru JO, Junghoon YANG, Yunok KIM