Patents by Inventor Ilha Lee

Ilha Lee 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: 20260171384
    Abstract: The present invention relates to a method for manufacturing an electrode for a lithium secondary battery, and an electrode, the method includes laminating the transfer laminate onto the electrode active material layer under specific temperature and pressure conditions such that a surface of the lithium metal layer opposite to a surface in contact with the release layer comes into contact with a surface of the electrode active material layer opposite to a surface in contact with the electrode current collector layer.
    Type: Application
    Filed: May 18, 2023
    Publication date: June 18, 2026
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Seoyoung JEON, ILHA LEE
  • Patent number: 12651737
    Abstract: Disclosed is a pre-lithiation method of a negative electrode for a lithium secondary battery, a negative electrode intermediate, and a lithium secondary battery including a negative electrode.
    Type: Grant
    Filed: February 2, 2023
    Date of Patent: June 9, 2026
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Ilha Lee, Mun Kyu Joo, Sarah Kim, Seoyoung Jeon, Yohan Kwon, Jonghyun Chae
  • Publication number: 20260142150
    Abstract: Disclosed is an electrode pre-lithiation method, a pre-lithiated electrode for a lithium secondary battery, and an electrode pre-lithiation apparatus.
    Type: Application
    Filed: May 8, 2023
    Publication date: May 21, 2026
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Jonghyun CHAE, ILHA LEE, Seoyoung JEON, Daeryung KOO, Yohan KWON, Sarah KIM, Mun Kyu JOO
  • Publication number: 20260018584
    Abstract: A method for manufacturing an electrode for a lithium secondary battery is described, as well as an electrode intermediate, and a lithium secondary battery including the electrode. The method comprises forming an electrode current collector layer and an electrode active material layer on one surface or both surfaces of the electrode current collector layer; preparing a transfer laminate in which a base material film, a transfer force enhancing layer, and a lithium metal layer are sequentially stacked; forming a transfer start portion by removing the lithium metal layer in a transverse direction (TD); transferring the lithium metal layer having the transfer start portion formed thereon, on top of the electrode active material layer; and removing the base material film.
    Type: Application
    Filed: December 13, 2023
    Publication date: January 15, 2026
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Ilha LEE, Seoyoung JEON, Mun Kyu JOO, Sarah KIM, Yohan KWON, Jonghyun CHAE
  • Publication number: 20250379206
    Abstract: The present application relates to a transfer laminate, a method for manufacturing a transfer laminate, a method for manufacturing an electrode for a lithium secondary battery, and a lithium secondary battery, including a prelithiation process in which a lithium metal layer is easily transferred by controlling the ratio of lithium elements and oxygen elements on the surface and in a specific region of a lithium metal layer by controlling the temperature of a base material layer.
    Type: Application
    Filed: December 13, 2023
    Publication date: December 11, 2025
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Ilha LEE, Mun Kyu JOO, Daeryung KOO, Seong Won CHOI, Yohan KWON, Jonghyun CHAE
  • Publication number: 20250201938
    Abstract: A lithium transfer film of the present disclosure includes a base layer, a lithium metal layer, and a passivation layer. In the base layer, the Young's Modulus in each of a machine direction (MD) and a transverse direction (TD) is about 4.2 GPa or more, the elongation in each of the MD and TD is about 130% or less, and the elongation deviation in each of the MD and TD is about ±3.5 or less.
    Type: Application
    Filed: December 13, 2024
    Publication date: June 19, 2025
    Applicants: LG Energy Solution, LTD., TORAY ADVANCED MATERIALS KOREA INC.
    Inventors: Mun Kyu JOO, Ilha LEE, Daeryung KOO, Yohan KWON, Jonghyun CHAE, Doyoung HONG, Jongyong PARK, Seungwoo LEE, Junghwan LEE
  • Publication number: 20250006884
    Abstract: Disclosed is a pre-lithiation method of a negative electrode for a lithium secondary battery, a negative electrode intermediate, and a lithium secondary battery including a negative electrode.
    Type: Application
    Filed: February 2, 2023
    Publication date: January 2, 2025
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: ILHA LEE, Mun Kyu JOO, Sarah KIM, Seoyoung JEON, Yohan KWON, Jonghyun CHAE
  • Publication number: 20250006885
    Abstract: The present invention relates to a method for manufacturing an electrode assembly, in which after transferring a transfer laminate in which a base layer, a surface protection layer, and a lithium metal layer are sequentially laminated so that the lithium metal layer is brought into contact with a separator, the separator onto which the lithium metal layer is transferred is brought into contact with the surface of the electrode layer, and the surface protection layer is made to face an electrode.
    Type: Application
    Filed: May 4, 2023
    Publication date: January 2, 2025
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Jonghyun CHAE, ILHA LEE, Seoyoung JEON, Daeryung KOO, Yohan KWON, Sarah KIM, Mun Kyu JOO
  • Publication number: 20240355999
    Abstract: Disclosed is a manufacturing method of a negative electrode for a lithium secondary battery, a negative electrode for a lithium secondary battery, and a lithium secondary battery including a negative electrode.
    Type: Application
    Filed: February 3, 2023
    Publication date: October 24, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Mun Kyu JOO, ILHA LEE, Sarah KIM, Seoyoung JEON, Yohan KWON, Jonghyun CHAE
  • Publication number: 20240336050
    Abstract: Disclosed is a transfer laminate, a pre-lithiation method of an electrode for a lithium secondary battery, and a lithium secondary battery including an electrode.
    Type: Application
    Filed: January 25, 2023
    Publication date: October 10, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: ILHA LEE, Mun Kyu JOO, Sarah KIM, Seoyoung JEON, Yohan KWON, Jonghyun CHAE
  • Publication number: 20240332494
    Abstract: Disclosed is a pre-lithiation method of an electrode for a lithium secondary battery, an electrode intermediate, and a lithium secondary battery including an electrode.
    Type: Application
    Filed: January 25, 2023
    Publication date: October 3, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: ILHA LEE, Mun Kyu JOO, Sarah KIM, Seoyoung JEON, Yohan KWON, Jonghyun CHAE
  • Publication number: 20240266494
    Abstract: The present application relates to a transfer laminate, a negative electrode for a lithium secondary battery, a method for manufacturing a lithium secondary battery, and a lithium secondary battery.
    Type: Application
    Filed: February 2, 2023
    Publication date: August 8, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Mun Kyu JOO, ILHA LEE, Sarah KIM, Seoyoung JEON, Yohan KWON, Jonghyun CHAE
  • Publication number: 20240258512
    Abstract: A negative electrode for a lithium secondary battery, a method for manufacturing a lithium secondary battery, and a lithium secondary battery are disclosed. The negative electrode includes a negative electrode current collector; a negative electrode active material layer on one surface or both surfaces of the current collector; and an electrolyte solution dissolution layer on a surface of the negative electrode active material layer opposite to a surface of the negative electrode active material layer facing the negative electrode current collector layer. The electrolyte solution dissolution layer has a thickness of 0.1 ?m or more and 5 ?m or less. The electrolyte solution dissolution layer comprises a binder copolymer comprising a monomer unit comprising a fluoro group, and the monomer unit is present in an amount of 5 parts by weight or more and 20 parts by weight or less based on 100 parts by weight of the binder copolymer.
    Type: Application
    Filed: November 22, 2022
    Publication date: August 1, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Seoyoung JEON, Sarah KIM, ILHA LEE, Mun Kyu JOO, Yohan KWON, Jonghyun CHAE
  • Publication number: 20240213448
    Abstract: The present application relates to a pre-lithiation method of a negative electrode for a lithium secondary battery, a negative electrode for a lithium secondary battery, and a lithium secondary battery including a negative electrode. The pre-lithiation method includes forming a negative electrode current collector layer and a negative electrode active material layer on one surface or both surfaces of the negative electrode current collector layer; forming a silver (Ag)-containing metal layer on a surface of the negative electrode active material layer opposite to a surface of the negative electrode active material layer facing the negative electrode current collector layer; and transferring lithium metal to a surface of the Ag-containing metal layer opposite to a surface of the metal layer facing the negative electrode active material layer. A thickness of the Ag-containing metal layer is 10 nm or greater and 2 ?m or less.
    Type: Application
    Filed: December 20, 2022
    Publication date: June 27, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Ilha LEE, Mun Kyu JOO, Sarah KIM, Seoyoung JEON, Yohan KWON, Jonghyun CHAE
  • Patent number: 11926558
    Abstract: The present specification relates to a conductive structure body, a method for manufacturing the same, and an electrode and an electronic device including the conductive structure body.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: March 12, 2024
    Assignee: LG CHEM LTD.
    Inventors: Ilha Lee, Seung Heon Lee, Song Ho Jang, Dong Hyun Oh, Ji Young Hwang, Ki-Hwan Kim, Han Min Seo, Chan Hyoung Park, Sun Young Park
  • Patent number: 11293088
    Abstract: The present specification relates to a conductive structure, a method of manufacturing the same, and an electrode including the conductive structure.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: April 5, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Ilha Lee, Jin Hyuk Min, Ki-Hwan Kim, Chan Hyoung Park
  • Patent number: 10969677
    Abstract: The present application relates to a film mask including: a transparent substrate; a darkened light-shielding pattern layer provided on the transparent substrate; and a release force enhancement layer provided on the darkened light-shielding pattern layer and having surface energy of 30 dynes/cm or less, a method for manufacturing the same, and a method for forming a pattern using the film mask.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: April 6, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Ji Young Hwang, Han Min Seo, Nam Seok Bae, Seung Heon Lee, Dong Hyun Oh, Chan Hyoung Park, Ki-Hwan Kim, Ilha Lee
  • Patent number: 10725332
    Abstract: The present invention relates to a display device.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: July 28, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Ilha Lee, Jin Hyong Lim, Ki-Hwan Kim
  • Patent number: 10613393
    Abstract: The present specification relates to a conductive structure body, and an electrode and a display device including the same.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: April 7, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Ilha Lee, Song Ho Jang, Jin Hyuk Min, Ki-Hwan Kim, Chan Hyoung Park
  • Publication number: 20200056306
    Abstract: The present invention relates to an apparatus for manufacturing carbon fiber by using microwaves, and more particularly, to an apparatus for manufacturing carbon fiber by using microwaves, which directly or indirectly heats and carbonizes a carbon fiber precursor by using microwaves, so that energy efficiency is improved because an entire carbonization furnace is not heated, and a property of the precursor is adjusted by a simpler method by using microwaves.
    Type: Application
    Filed: December 19, 2017
    Publication date: February 20, 2020
    Inventors: Sujin KIM, Ilha LEE, Joon Hee CHO, Ki Hwan KIM, Myungsu JANG