Patents by Inventor Jayeon GU

Jayeon GU 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: 20250167404
    Abstract: Disclosed are a separator for a rechargeable lithium battery and a rechargeable lithium battery including the same. Specifically, in an embodiment, the separator for a rechargeable lithium battery includes a substrate, a heat resistant layer and an adhesive layer sequentially on one surface of the substrate; wherein the heat resistant layer includes heterogeneous particles having different shapes; and the adhesive layer includes an adhesive binder.
    Type: Application
    Filed: August 30, 2023
    Publication date: May 22, 2025
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Jayeon GU, Yeonjoo CHOI, Gain KIM, Sanghyun PARK
  • Publication number: 20250158232
    Abstract: Disclosed are a separator for a rechargeable lithium battery and a rechargeable lithium battery including the same. The separator for a rechargeable lithium battery includes a substrate and a heat resistant layer on at least one surface of the substrate, wherein the heat resistant layer includes heterogeneous particles having different shapes, shutdown filler at least one of under, inside, or on the heat resistant layer.
    Type: Application
    Filed: August 30, 2023
    Publication date: May 15, 2025
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Yeonjoo CHOI, Jayeon GU, Gain KIM, Sanghyun PARK
  • Publication number: 20250158065
    Abstract: Example embodiments include a binder, a separator including the binder, and a rechargeable lithium battery including the separator, the binder including a first structural unit derived from (meth)acrylic acid, (meth)acrylate, or a salt thereof, a second structural unit derived from hydroxyalkyl (meth)acrylate, and a third structural unit derived from (meth)acrylamidosulfonic acid or a salt thereof.
    Type: Application
    Filed: July 25, 2024
    Publication date: May 15, 2025
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Dongwan SEO, Yeonjoo CHOI, Gain KIM, Jayeon GU, Woosung LEE
  • Publication number: 20250096413
    Abstract: A separator for a rechargeable lithium battery and a rechargeable lithium battery including the same are disclosed. Specifically, provided is a separator for a rechargeable lithium battery including a substrate and a coating layer on at least one surface of the substrate; the coating layer includes three-dimensional structured particles including an organic filler; and wire-type particles.
    Type: Application
    Filed: August 30, 2023
    Publication date: March 20, 2025
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Gain KIM, Yeonjoo CHOI, Jayeon GU, Sanghyun PARK
  • Patent number: 12107297
    Abstract: This application relates to a coating layer composition and a coating layer formed using the coating layer composition. The coating layer composition includes a heat-resistant binder, a hydroxy group-containing polyimide particle, a silane cross-linking agent, and a solvent. The hydroxy group-containing polyimide particle and the functional group-containing silane cross-linking agent form a core-shell structured organic particle in which a core portion is derived from the hydroxy group-containing polyimide particles and a shell portion that is derived from the functional group-containing silane cross-linking agent. The shell portion is on the surface of the core portion in the core-shell structured organic particle. The application also relates to a separator for a rechargeable lithium battery and a rechargeable lithium battery including the separator having a coating layer formed using the coating layer composition.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: October 1, 2024
    Assignees: SAMSUNG SDI CO., LTD., IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
    Inventors: Gain Kim, Yeonjoo Choi, Jayeon Gu, Yangseob Kim, Jae Hoon Kim, Sun Ju Moon, Young Moo Lee
  • Publication number: 20240250384
    Abstract: Provided are a separator coating composition, a method of manufacturing a separator using the same, and a separator and a lithium battery using the same. The separator coating composition includes a binder containing an aqueous crosslinking reactive poly(vinylamide)-based copolymer, a crosslinking agent having at least bifunctionality, inorganic particles, and water, wherein the poly(vinylamide)-based copolymer includes a repeating unit derived from a vinylamide monomer and a repeating unit derived from a crosslinking reactive group-containing monomer. The separator coating composition may be used to prepare a separator capable of exhibiting high heat resistance even at a thinner coating thickness.
    Type: Application
    Filed: May 13, 2022
    Publication date: July 25, 2024
    Inventors: Jayeon GU, Hana KIM, Byungmin LEE, Minho CHO
  • Publication number: 20210305659
    Abstract: This application relates to a coating layer composition and a coating layer formed using the coating layer composition. The coating layer composition includes a heat-resistant binder, a hydroxy group-containing polyimide particle, a silane cross-linking agent, and a solvent. The hydroxy group-containing polyimide particle and the functional group-containing silane cross-linking agent form a core-shell structured organic particle in which a core portion is derived from the hydroxy group-containing polyimide particles and a shell portion that is derived from the functional group-containing silane cross-linking agent. The shell portion is on the surface of the core portion in the core-shell structured organic particle. The application also relates to a separator for a rechargeable lithium battery and a rechargeable lithium battery including the separator having a coating layer formed using the coating layer composition.
    Type: Application
    Filed: December 23, 2020
    Publication date: September 30, 2021
    Inventors: Gain KIM, Yeonjoo CHOI, Jayeon GU, Yangseob KIM, Jae Hoon KIM, Sun Ju MOON, Young Moo LEE