Patents by Inventor Ha-Young Jung

Ha-Young Jung 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).

  • Patent number: 11387489
    Abstract: A polymer electrolyte including a poly(ethylene oxide) (PEO) containing polymer; and a lithium salt, wherein a terminal of the poly(ethylene oxide) containing polymer is substituted with a sulfur compound functional group, a nitrogen compound functional group or a phosphorus compound functional group, and a method for preparing the same and a battery containing the same.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: July 12, 2022
    Assignees: LG ENERGY SOLUTION, LTD., POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Daeil Kim, Moon Jeong Park, Jonghyun Chae, Yeonju Lee, Lucia Kim, Ha Young Jung, Gyuha Jo
  • Publication number: 20220127393
    Abstract: The present invention relates to a catalyst composition including an oxonium ion-based catalyst and an additive, and a method for preparing a hydrocarbon resin using the same.
    Type: Application
    Filed: August 25, 2020
    Publication date: April 28, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Gyeong Shin Choi, Won Hee Kim, Young Soo Ko, Ha Young Jung, Ann Chaise Carino
  • Patent number: 11251463
    Abstract: A method of preparing a sintered solid electrolyte includes (a) coprecipitating a mixed solution including a lanthanum precursor, a zirconium precursor, a gallium precursor, a complexing agent, and a pH adjuster to provide a solid electrolyte precursor; (b) washing and drying the solid electrolyte precursor to provide a washed and dried solid electrolyte precursor; (c) mixing the washed and dried solid electrolyte precursor with a lithium source to provide a mixture; (d) calcining the mixture to provide a calcined solid electrolyte, which is a gallium (Ga)-doped lithium lanthanum zirconium oxide (LLZO), as represented by Chemical Formula 1 below, LixLayZrzGawO12,??Chemical Formula 1 where 5?x?9, 2?y?4, 1?z?3, and 0<w?4; and (e) sintering the calcined solid electrolyte at a temperature ranging from 1,000° C. to 1,300° C. to provide the sintered solid electrolyte, wherein a ratio (M1:M2) of moles (M1) of lithium element to moles (M2) of gallium element ranges from 6.7:0.1 to 5.8:0.4.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: February 15, 2022
    Assignee: Korea Institute of Industrial Technology
    Inventors: Ho Sung Kim, Min Young Kim, Seung Hoon Yang, Da Hye Kim, Hye Min Ryu, Ha Young Jung
  • Publication number: 20210091410
    Abstract: A polymer electrolyte is provided, which includes a polymer including an ethylene oxide unit; and a lithium salt, wherein the terminal of the polymer is substituted with one to four functional groups selected from the group consisting of a nitrogen compound functional group and phosphorus compound functional group, and the terminal of the polymer and the one to four functional groups are linked by one selected from the group consisting of a C2 to C20 alkylene linker, a C2 to C20 ether linker, and a C2 to C20 amine linker. A method for preparing the same is also provided.
    Type: Application
    Filed: July 24, 2019
    Publication date: March 25, 2021
    Applicants: LG CHEM, LTD., POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Daeil KIM, Moon Jeong PARK, Jonghyun CHAE, Ha Young JUNG, Suhwan KIM, Sung Chul LIM, Jihoon AHN
  • Patent number: 10818968
    Abstract: A method of preparing a gallium-doped LLZO solid electrolyte includes (a) preparing a solid electrolyte precursor slurry by subjecting a mixed solution comprising a metal aqueous solution including lanthanum (La), zirconium (Zr) and gallium (Ga), a complexing agent and a pH controller to coprecipitation; (b) preparing a solid electrolyte precursor by washing and drying the solid electrolyte precursor slurry; (c) preparing a mixture by mixing the solid electrolyte precursor with a lithium source; (d) preparing a gallium-doped LLZO solid electrolyte represented by Chemical Formula 1 below by calcining the mixture at 600 to 1,000° C.; and (e) thereafter sintering the solid electrolyte represented by Chemical Formula 1 at 1,000 to 1,300° C. By adjusting amounts of starting materials and controlling flow rates of supplied materials, a high-precision cubic structure with improved sintering properties is obtained and ionic conductivity of the solid electrolyte is increased.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: October 27, 2020
    Assignee: Korea Institute of Industrial Technology
    Inventors: Ho Sung Kim, Seung Hoon Yang, Min-young Kim, Ha Young Jung, Da Hye Kim
  • Publication number: 20190386340
    Abstract: A polymer electrolyte including a poly(ethylene oxide) (PEO) containing polymer; and a lithium salt, wherein a terminal of the poly (ethylene oxide) containing polymer is substituted with a sulfur compound functional group, a nitrogen compound functional group or a phosphorus compound functional group, and a method for preparing the same and a battery containing the same.
    Type: Application
    Filed: September 21, 2018
    Publication date: December 19, 2019
    Applicants: LG CHEM, LTD., POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Daeil KIM, Moon Jeong PARK, Jonghyun CHAE, Yeonju LEE, Lucia KIM, Ha Young JUNG, Gyuha JO
  • Publication number: 20190273283
    Abstract: Disclosed is a method of preparing a solid electrolyte, the method including (a) preparing a solid electrolyte precursor by subjecting a mixed solution composed of a lanthanum precursor, a zirconium precursor, a gallium precursor, a complexing agent, and a pH adjuster to coprecipitation, (b) washing and drying the solid electrolyte precursor, (c) preparing a mixture by mixing the washed and dried solid electrolyte precursor with a lithium source, and (d) calcining the mixture to give a calcined solid electrolyte, which is a gallium (Ga)-doped lithium lanthanum zirconium oxide (LLZO), as represented by Chemical Formula 1. A solid electrolyte having increased ionic conductivity and an improved potential window can be provided using the method of preparing the solid electrolyte.
    Type: Application
    Filed: October 27, 2017
    Publication date: September 5, 2019
    Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
    Inventors: Ho Sung KIM, Min Young KIM, Seung Hoon YANG, Da Hye KIM, Hye Min RYU, Ha Young JUNG
  • Publication number: 20190036159
    Abstract: Disclosed is a gallium (Ga)-doped LLZO solid electrolyte represented by Chemical Formula 1 below, a method of preparing the same, and an all-solid-state lithium secondary battery including the same. In the solid electrolyte according to the present invention and the preparation method thereof, the amounts of gallium and lithium of starting materials are adjusted and the flow rate of materials to be supplied is controlled, thus forming a high-precision cubic structure and improving sintering properties, thereby increasing the ionic conductivity of the solid electrolyte. The lithium secondary battery including the solid electrolyte can exhibit superior charge/discharge characteristics and cycle characteristics.
    Type: Application
    Filed: July 27, 2018
    Publication date: January 31, 2019
    Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
    Inventors: Ho Sung KIM, Seung Hoon YANG, Min-young KIM, Ha Young JUNG, Da Hye KIM
  • Publication number: 20180309163
    Abstract: Disclosed is a bipolar all solid-state battery, which can efficiently control a manufacturing process thereof and can improve electric properties thereof. In an exemplary embodiment, the bipolar all solid-state battery includes a unit cell including a first current collector having a first surface and a second surface opposite to the first surface; a first active material coated on the first surface of the first current collector, a second current collector having a first surface and a second surface opposite to the first surface; a second active material coated on the first surface of the second current collector and facing the first active material; and an all solid-state electrolyte formed between the first active material and the second active material. When a plurality of the unit cells are stacked, the first current collector and the second current collector are connected to each other through surface contact.
    Type: Application
    Filed: February 5, 2018
    Publication date: October 25, 2018
    Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
    Inventors: Ho Sung KIM, Min Young KIM, Seung Hoon YANG, Da Hye KIM, Ha Young JUNG, Hye Min RYU, Jin Sub LIM
  • Patent number: 6509541
    Abstract: The present invention provides a method for molding an assembly panel by manufacturing a blank for a main panel and a blank for a reinforcing panel; temporarily welding the blank for the reinforcing panel to the blank for the main panel along a predetermined welding line; holding the two welded panels in a press and molding the same into a predetermined shape; trimming scraps from the main panel; and spot welding the two panels so that the two panels adhere to each other more firmly.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: January 21, 2003
    Assignee: Hyundai Motor Company
    Inventors: Ha-Young Jung, Heung-Chun Ahn
  • Publication number: 20020041050
    Abstract: The present invention provides a method for molding an assembly panel comprising the steps of:
    Type: Application
    Filed: October 9, 2001
    Publication date: April 11, 2002
    Inventors: Ha-Young Jung, Heung-Chun Ahn