Patents by Inventor Hwamyung JANG

Hwamyung JANG 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).

  • Publication number: 20250140807
    Abstract: A secondary cell comprising an anode, a cathode, an electrolyte, and optionally a separator, characterized in that the anode comprises a substrate and a lithium ion storage layer comprising particles, wherein the lithium ion storage layer is deposited on the substrate; a method for its manufacturing; and a vehicle comprising such secondary cell.
    Type: Application
    Filed: February 16, 2023
    Publication date: May 1, 2025
    Inventors: Hwamyung JANG, Léo DUCHÊNE
  • Publication number: 20250140816
    Abstract: The invention relates to a secondary cell comprising an anode, a cathode, optionally a separator, and an electrolyte, characterized in that the anode comprises an active material or composition of active materials, wherein at least one active material or composition of active materials functions as a current collector, wherein the active material or composition of active materials comprises carbon, silicon, and/or metal oxide(s), and wherein the anode does not comprise any additional current collector. A vehicle comprising said secondary cell is also claimed.
    Type: Application
    Filed: February 16, 2023
    Publication date: May 1, 2025
    Inventors: Hwamyung JANG, Léo DUCHÊNE
  • Publication number: 20250132316
    Abstract: The invention relates to a secondary cell comprising an anode, a cathode, optionally a separator, and an electrolyte, characterized in that the anode comprises particles in multiple layers.
    Type: Application
    Filed: February 16, 2023
    Publication date: April 24, 2025
    Inventors: Hwamyung JANG, Léo DUCHÊNE
  • Publication number: 20210384503
    Abstract: The present invention relates to a lithium transition metal composite oxide capable of being used as a positive electrode (cathode) active material for non-aqueous electrolyte lithium secondary batteries having a general formula Li1+a(1?x?y?z)M1xM2yM3(1?a)(1?x?y?z)M3?a(1?x?y?z)M4zO2+a(1?x?y?z), in which 0.7?x<1, y=(1?x)/2, 0?z?0.05 and 0<a(1?x?y?z)?0.05, and where M1 is Ni having an oxidation state of three, M2 is one or more metal cations having an oxidation state of three, M3? and M3 are identically one or more metal cations with at least one ion being Mn, wherein the one or more metal cations M3 have an oxidation state of four and the one or more metal cations M3 have an oxidation state of three, and M4 is one or more metal cations selected from of Mg, Al and B. Further, the present invention relates and a method for preparing the lithium transition metal composite oxide and to a non-aqueous electrolyte lithium secondary battery containing the lithium transition metal composite oxide.
    Type: Application
    Filed: October 10, 2019
    Publication date: December 9, 2021
    Inventors: Yasuo ANNO, Kazuhiko KIKUYA, Takehiko SUWA, Tetsuya MAKINO, Koki INOUE, Takuma SAKAMOTO, Young Chul CHANG, Seung Joon LEE, Su Jin YOON, Ju Yong KIM, Hwamyung JANG