Patents by Inventor Jaecheol CHOI

Jaecheol CHOI 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: 20240072297
    Abstract: Provided is a lithium battery including a first electrode structure, a second electrode structure spaced apart from the first electrode structure, and an electrolyte between the first electrode structure and the second electrode structure, wherein the electrolyte includes a lithium salt, an organic solvent, and an additive, the additive includes a metal salt compound catalyst, the metal salt compound catalyst activates a polymerization reaction of a cyclic carbonate in the organic solvent at a first temperature, and the first temperature ranges between about 100° C. and about 200° C.
    Type: Application
    Filed: August 2, 2023
    Publication date: February 29, 2024
    Inventors: Jaecheol CHOI, Young-Gi LEE, Ju Young KIM
  • Publication number: 20230411678
    Abstract: Provided are a solid electrolyte membrane, an all-solid-state battery including the same and methods of manufacturing thereof. The solid electrolyte membrane includes a texture-type support having oppositely disposed first side and second side, and having multiple pores inside thereof, and a solid electrolyte filling up the pores and covering at least one side of the support, wherein the support may include a lithium salt, a polymer material or a first solid electrolyte material, or combinations thereof, and show ion conductivity. The solid electrolyte may include a second solid electrolyte material.
    Type: Application
    Filed: October 21, 2022
    Publication date: December 21, 2023
    Inventors: Seok Hun Kang, Young-Gi Lee, Young Sam Park, Dong Ok Shin, Jaecheol Choi
  • Publication number: 20230378602
    Abstract: Provided is a method for manufacturing a binder for coating a secondary battery separator, wherein the method may include performing a first polymerization on a first monomer to form a precursor solution including a chain-type particle, and adding a second monomer to the precursor solution and performing a second polymerization to form an emulsion particle on the chain-type particle. In an embodiment, the second polymerization may include an emulsification polymerization in which the chain-type particle acts as an emulsifier.
    Type: Application
    Filed: May 18, 2023
    Publication date: November 23, 2023
    Applicants: Electronics and Telecommunications Research Institute, APEC, LTD.
    Inventors: Jaecheol CHOI, Sang Won HWANG, Jun Hee PARK, Young Jae JANG, Young-Gi LEE, Ju Young KIM, Dong Ok SHIN
  • Publication number: 20230299349
    Abstract: A lithium battery according to the inventive concept includes: a first electrode structure; a second electrode structure separated from the first electrode structure; and an electrolyte between the first electrode structure and the second electrode structure, wherein the electrolyte includes: a lithium salt; an organic solvent; and an additive, the additive includes a polymer additive, and the polymer additive may be a mixture of at least two or more polymers among a halogen-based polymer, a silicon-based polymer and an acrylic polymer, or a copolymer thereof.
    Type: Application
    Filed: December 19, 2022
    Publication date: September 21, 2023
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jaecheol CHOI, Kwang Man KIM, Young-Gi LEE, Seok Hun KANG, Ju Young KIM, Dong Ok SHIN, Jimin OH
  • Publication number: 20230261323
    Abstract: Provided is a secondary battery including: a first electrode structure; a second electrode structure spaced apart from the first electrode structure; a separator between the first electrode structure and the second electrode structure; and an electrolyte filled between the first electrode structure and the separator and between the second electrode structure and the separator, wherein the separator includes: a separator substrate; a polymer layer adsorbed on a surface of the separator substrate; and a ceramic layer on the polymer layer, the polymer layer including a polyethyloxazoline-based polymer, and the ceramic layer including an aqueous binder.
    Type: Application
    Filed: August 31, 2022
    Publication date: August 17, 2023
    Inventors: YOUNG SAM PARK, Ju Young Kim, Jinyoung Kim, Seok Hun Kang, Young-Gi Lee, Dong Ok Shin, Seokyoon Yoon, Jaecheol Choi
  • Publication number: 20230100845
    Abstract: Provided is a cellulose derivative composition for an all-solid-state secondary battery binder including a compound represented by Formula 1 below according to the inventive concept. In Formula 1, R1, R1?, R2, R2?, R3, and R3? are each independently any one among a carboxymethyl group, a sulfur substituent, or a phosphorus substituent, in which a monovalent metal is substituted or hydrogen, wherein R1, R2, and R3 is —CH2COOX, , SO3X, —PO3X or —PO3X2 where X may be any one among sodium (Na), potassium (K), rubidium (Rb), or cesium (Cs). R1?, R2?, and R3? is —CH2COOY, —SO3Y, —PO3Y or —PO3Y2 where Y may be lithium (Li).
    Type: Application
    Filed: September 15, 2022
    Publication date: March 30, 2023
    Inventors: Dong Ok SHIN, Young-Gi Lee, Jaecheol Choi, Seok Hun Kang, Ju Young Kim, Young Sam Park
  • Patent number: 10673058
    Abstract: A battery technology, and more particularly, a current collector may be widely used in secondary batteries, and an electrode may employ such technology. The current collector includes a conductive fiber layer including a plurality of conductive fibers. Each of the conductive fibers includes a conductive core including a plurality of metal filaments, and a conductive binder matrix surrounding the outer circumferential surfaces of the conductive core.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: June 2, 2020
    Assignee: JENAX INC.
    Inventors: Yong Min Lee, Myung-Hyun Ryou, Seonghyun Song, Jaecheol Choi, Chang Hyeon Kim
  • Publication number: 20190027737
    Abstract: A battery technology, and more particularly, a current collector may be widely used in secondary batteries, and an electrode may employ such technology. The current collector includes a conductive fiber layer including a plurality of conductive fibers. Each of the conductive fibers includes a conductive core including a plurality of metal filaments, and a conductive binder matrix surrounding the outer circumferential surfaces of the conductive core.
    Type: Application
    Filed: September 26, 2018
    Publication date: January 24, 2019
    Inventors: Yong Min Lee, Myung-Hyun Ryou, Seonghyun Song, Jaecheol Choi, Chang Hyeon Kim
  • Patent number: 10115960
    Abstract: The present invention relates to a battery technology, and more particularly, to a current collector that may be widely used in secondary batteries and an electrode employing the same. The current collector includes a conductive fiber layer including a plurality of conductive fibers. Each of the conductive fibers includes a conductive core consisting of a plurality of metal filaments; and a conductive binder matrix surrounding the outer circumferential surfaces of the conductive core.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: October 30, 2018
    Assignees: Jenax Inc., Hanbat National University Industry-Academic Cooperation Foundation
    Inventors: Yong Min Lee, Myung-Hyun Ryou, Seonghyun Song, Jaecheol Choi, Chang Hyeon Kim
  • Publication number: 20160164071
    Abstract: The present invention relates to a battery technology, and more particularly, to a current collector that may be widely used in secondary batteries and an electrode employing the same. The current collector includes a conductive fiber layer including a plurality of conductive fibers. Each of the conductive fibers includes a conductive core consisting of a plurality of metal filaments; and a conductive binder matrix surrounding the outer circumferential surfaces of the conductive core.
    Type: Application
    Filed: October 30, 2014
    Publication date: June 9, 2016
    Inventors: Yong Min LEE, Myung-Hyun RYOU, Seonghyun SONG, Jaecheol CHOI, Chang Hyeon KIM