Patents by Inventor JiYoon Kwon

JiYoon Kwon 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).

  • Method for Manufacturing High-Nickel Positive Electrode Active Material
    Publication number: 20230373813
    Abstract: The present invention provides a method for manufacturing a high-nickel positive electrode active material comprising the steps of preparing a raw material containing nickel and cobalt; separating a liquid intermediate by leaching a metal component in the pulverized raw material using an acid and removing impurities; and co-precipitating a precursor of a positive electrode active material by adding a chelating agent and a hydroxide precipitant to the liquid intermediate.
    Type: Application
    Filed: October 14, 2021
    Publication date: November 23, 2023
    Applicant: LG Energy Solution, Ltd.
    Inventors: Jiyoon Kwon, Kyung Hwan Jung, Dong Hoon Han, Sungwoo Park, Sung Gwang Nam, Su Bin Yoo, Dong Myung Kim
  • Multilayer electrolyte cell, secondary battery comprising multilayer electrolyte cell and manufacturing method therefor
    Patent number: 11145895
    Abstract: The present invention relates to a multilayer electrolyte cell, a secondary battery including the multilayer electrolyte cell, and a manufacturing method thereof, and more particularly, to a multilayer electrolyte cell, in which electrolytes are configured in multiple layers by stacking polymer coating layers containing ceramic solid electrolytes and liquid electrolytes including an ionic liquid in a porous structure base, a secondary battery including the multilayer electrolyte cell, and a manufacturing method thereof.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: October 12, 2021
    Inventors: Seongyoon Lim, Jiyoon Kwon, Seok Koo Kim, Heojin Hah, Youngsik Kim, Hyunji Choi, Jaekwang Kim, Seongwoo Hur
  • MULTILAYER ELECTROLYTE CELL, SECONDARY BATTERY COMPRISING MULTILAYER ELECTROLYTE CELL AND MANUFACTURING METHOD THEREFOR
    Publication number: 20180358652
    Abstract: The present invention relates to a multilayer electrolyte cell, a secondary battery including the multilayer electrolyte cell, and a manufacturing method thereof, and more particularly, to a multilayer electrolyte cell, in which electrolytes are configured in multiple layers by stacking polymer coating layers containing ceramic solid electrolytes and liquid electrolytes including an ionic liquid in a porous structure base, a secondary battery including the multilayer electrolyte cell, and a manufacturing method thereof.
    Type: Application
    Filed: July 7, 2017
    Publication date: December 13, 2018
    Applicants: LG Chem, Ltd., UNIST (Ulsan National Institute of Science and Technology)
    Inventors: Seongyoon Lim, Jiyoon Kwon, Seok Koo Kim, Heojin Hah, Youngsik Kim, Hyunji Choi, Jaekwang Kim, Seongwoo Hur
  • Electrode having enhanced adhesion for lithium secondary batteries
    Patent number: 10062906
    Abstract: Disclosed is an electrode for secondary batteries including an electrode mix, which includes an electrode active material and a binder, coated on a current collector. More particularly, the electrode includes a first electrode mix layer including a first binder, a glass transition temperature (Tg) of which is lower than that of a second binder, and an electrode active material, and coated on the current collector; and a second electrode mix layer including the second binder, a glass transition temperature (Tg) of which is higher than that of the first binder, and an electrode active material, and coated on the first electrode mix layer.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: August 28, 2018
    Assignee: LG Chem, Ltd.
    Inventors: JiYoon Kwon, KyoungHo Kim, Cheolhoon Choi, HoeJin Hah, Seok Koo Kim, Jooyong Song
  • ELECTRODE HAVING ENHANCED ADHESION FOR LITHIUM SECONDARY BATTERIES
    Publication number: 20160099470
    Abstract: Disclosed is an electrode for secondary batteries including an electrode mix, which includes an electrode active material and a binder, coated on a current collector. More particularly, the electrode includes a first electrode mix layer including a first binder, a glass transition temperature (Tg) of which is lower than that of a second binder, and an electrode active material, and coated on the current collector; and a second electrode mix layer including the second binder, a glass transition temperature (Tg) of which is higher than that of the first binder, and an electrode active material, and coated on the first electrode mix layer.
    Type: Application
    Filed: October 1, 2015
    Publication date: April 7, 2016
    Applicant: LG CHEM, LTD.
    Inventors: JiYoon Kwon, KyoungHo Kim, Cheolhoon Choi, HoeJin Hah, Seok Koo Kim, Jooyong Song