Patents by Inventor Ju Yeong Seong

Ju Yeong Seong 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: 10903518
    Abstract: Disclosed is a method of preparing a sulfide-based solid electrolyte for an all-solid battery having an argyrodite-type crystal structure through a solution process. The method including obtaining a precursor solution by dissolving lithium sulfide, phosphorus sulfide and a halogen compound in a solvent, obtaining a precursor powder by removing the solvent from the precursor solution. Solid electrolyte for an all-solid battery can be produced by such method.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: January 26, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Yong Jun Jang, Pil Gun Oh, Hong Seok Min, Yong Sub Yoon, Sa Heum Kim, Ju Yeong Seong
  • Publication number: 20200403227
    Abstract: The present disclosure relates to a method of manufacturing a cathode composite for an all-solid-state battery and a method of manufacturing an all-solid-state battery including the same. In particular, the present disclosure relates to a method of manufacturing a cathode composite for an all-solid-state battery in which the cathode composite is manufactured by mixing a solid electrolyte, a conductive material and a cathode active material with a solvent, and then performing two-step vacuum drying, whereby interfacial resistance between the cathode active material, the solid electrolyte and the conductive material is reduced to thus increase ionic conductivity, thereby improving battery performance and capacity, and a method of manufacturing an all-solid-state battery including the same.
    Type: Application
    Filed: December 4, 2019
    Publication date: December 24, 2020
    Applicants: Hyundai Motor Company, KIA Motors Corporation
    Inventors: In Woo SONG, Ju Yeong SEONG, Yun Sung KIM, Hong Seok MIN, Yong Jun JANG
  • Publication number: 20200395631
    Abstract: Disclosed are a solid electrolyte composite having high flexibility and strength, a method of manufacturing the same and an electrochemical device including the same. The solid electrolyte composite includes a matrix including a solid electrolyte, and fibrous polymers located in the same layer as the matrix and distributed in the matrix, and is manufactured by preparing a first solution including a polymer material, preparing a second solution including a solid electrolyte, producing fibrous polymers by electrospinning the first solution and simultaneously obtaining a structure configured such that the solid electrolyte is loaded between the fibrous polymers by electrospraying the second solution, and pressing the structure.
    Type: Application
    Filed: January 13, 2020
    Publication date: December 17, 2020
    Inventors: Sang Mo Kim, Hong Seok Min, Sang Heon Lee, Jae Min Lim, Ju Yeong Seong, Yun Sung Kim, Sang Young Lee, Jung Hwan Kim, Sang Ho Hong
  • Publication number: 20200358098
    Abstract: A binder solution for an all-solid-state battery, an electrode slurry for an all-solid-state battery including the same and a method of manufacturing an all-solid-state battery using the same, and more particularly to a binder solution for an all-solid-state battery, in which a polymer binder configured such that a non-polar functional group is bonded to the end of a polar functional group is used, whereby the polar functional group is provided by a deprotection mechanism of the polymer binder through a thermal treatment, thus increasing adhesion between electrode materials to thereby improve battery capacity and enabling a wet process to thereby reduce manufacturing costs, an electrode slurry for an all-solid-state battery including the same and a method of manufacturing an all-solid-state battery using the same.
    Type: Application
    Filed: December 5, 2019
    Publication date: November 12, 2020
    Inventors: Sang Mo Kim, Sang Heon Lee, Yong Sub Yoon, Jae Min Lim, Ju Yeong Seong, Jin Soo Kim, Jang Wook Choi, Kyu Lin Lee, Ji Eun Lee
  • Publication number: 20200194827
    Abstract: The present disclosure relates to a sulfide-based solid electrolyte doped with an alkaline earth metal for improving the ionic conductivity thereof and a method of manufacturing the same. The sulfide-based solid electrolyte is represented by Chemical Formula 1 below. The sulfide-based solid electrolyte exhibits high voltage stability and ionic conductivity. Consequently, it is possible to obtain an all-solid-state battery having a large capacity and stable behavior using the sulfide-based solid electrolyte. Li6-2xMexPS5Ha ??[Chemical Formula 1] wherein Me is an alkaline earth metal element, Ha is a halogen element, and 0<x?0.5.
    Type: Application
    Filed: October 25, 2019
    Publication date: June 18, 2020
    Applicant: Industry-University Cooperation Foundation Hanyang University
    Inventors: Ju Yeong SEONG, In Woo SONG, Hong Seok MIN, Yong Jun JANG, Yun Sung KIM, Dong Wook SHIN, Chan Hwi PARK, Sang Soo LEE, Kyu Beom KIM
  • Publication number: 20200185765
    Abstract: A sulfide-based solid electrolyte which is appropriately usable for a negative electrode of an all-solid-state battery and a method of manufacturing the same, may include a lithium element (Li), a sulfur element (S), a phosphorus element (P), and a halogen element (X), wherein the halogen element (X) is selected from the group consisting of a chlorine element (Cl), a bromine element (Br), an iodine element (I), and combinations thereof, and the molar ratio (S/P) of the sulfur element (S) to the phosphorus element (P) is 5 to 7.
    Type: Application
    Filed: June 4, 2019
    Publication date: June 11, 2020
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: YONG JUN JANG, IN WOO SONG, YUN SUNG KIM, JU YEONG SEONG
  • Publication number: 20200176814
    Abstract: A method of manufacturing a high-ion conductive sulfide-based solid electrolyte using dissolution-precipitation includes preparing a composite solvent including a first solvent including a cyano group and a second solvent having a polarity index of less than 4, introducing a raw material including lithium sulfide (Li2S) and phosphorus pentasulfide (P2S5) into the composite solvent, and stirring the raw material to obtain a sulfide precipitate.
    Type: Application
    Filed: October 23, 2019
    Publication date: June 4, 2020
    Inventors: Ju Yeong SEONG, In Woo SONG, Hong Seok MIN, Yong Jun JANG, Yun Sung KIM, Dong Wook SHIN, Sun Ho CHOI, Ji U ANN, Ji Yae DO, Seung Woo LIM
  • Patent number: 10673073
    Abstract: A cathode material may include a coating layer capable of preventing transition metal cations from being diffused between a cathode active material and a solid electrolyte when an all-solid state battery is charged and discharged, and a method for preparing the same.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: June 2, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Korea Institute of Science and Technology
    Inventors: Jae Min Lim, Ju Yeong Seong, Yong Jun Jang, Hyoung Chul Kim, Hun Gi Jung, Sung Jun Choi, Eu Deum Jung
  • Publication number: 20200153036
    Abstract: Disclosed are a five-component (Li-M-P—S—X) sulfide-based solid electrolyte synthesized using a wet process and a composition for manufacturing the same. The sulfide-based solid electrolyte is expressed as chemical formula 1 of A(Li2S).B(P2S5).C(MX4). A, B and C are respectively moles of Li2S, P2S5 and MX4, and satisfy 60<A<100, 0<B<40, 0<C?30 and A+B+C=100, M may include at least one selected from the group consisting of Ge, Si, Sb, Sn and combinations thereof, and X may include at least one selected from the group consisting of Cl, Br, I and combinations thereof.
    Type: Application
    Filed: May 30, 2019
    Publication date: May 14, 2020
    Applicants: Hyundai Motor Company, KIA Motors Corporation, Industry-University Cooperation Foundation Hanyang University
    Inventors: Ju Yeong Seong, In Woo Song, Hong Seok Min, Yong Jun Jang, Yun Sung Kim, Young Jin Nam, Sung Hoo Jung, Dae Yang Oh, Yoon Seok Jung
  • Publication number: 20200119394
    Abstract: Disclosed are a method of manufacturing a solid electrolyte, a solid electrolyte manufactured using the method, and an all-solid cell including the solid electrolyte. The method includes preparing an electrolyte admixture including a solid electrolyte precursor and a solvent, drying the electrolyte admixture and removing the solvent from the electrolyte admixture to form a dry electrolyte mixture, and heat-treating the dry electrolyte mixture to form a crystallized solid electrolyte.
    Type: Application
    Filed: April 9, 2019
    Publication date: April 16, 2020
    Inventors: Yong Jun Jang, Pil Gun Oh, Hong Seok Min, Yong Sub Yoon, Sa Heum Kim, Ju Yeong Seong
  • Publication number: 20200028161
    Abstract: A lithium ion battery for vehicles is provided. The battery includes a substrate, a positive electrode auxiliary layer disposed on the substrate and including at least one of platinum, gold, palladium, silver or combinations thereof, a positive electrode disposed on the positive electrode auxiliary layer and including an active material selected from at least one of LiNi0.5Mn1.5O4, LiCoPO4, LiMnPO4, or combinations thereof, an electrolyte layer disposed on the positive electrode, and a negative electrode disposed on the electrolyte layer.
    Type: Application
    Filed: November 30, 2018
    Publication date: January 23, 2020
    Applicants: Hyundai Motor Company, Kia Motors Corporation, The Industry & Academic Cooperation in Chungnam National University
    Inventors: Jae Min LIM, Ju Yeong SEONG, Yong Jun JANG, Jong Heon KIM, Chun Joong KIM, Hyun Suk KIM
  • Publication number: 20190326627
    Abstract: Disclosed is a method of manufacturing a solid electrolyte for an all-solid battery. The method may include preparing a solvent admixture comprising a first polar organic solvent containing a cyano group and a second polar organic solvent containing a hydroxyl group, preparing an electrolyte admixture by dissolving Li2S, P2S5 and LiCl in the solvent admixture, and preparing a solid electrolyte by stirring the electrolyte admixture. The method may further include precipitating the solid electrolyte by evaporating the solvent admixture, and heat treating the precipitated solid electrolyte. In particular, the solvent admixture may include the second polar organic solvent in an amount of about 0.01 to 0.03 wt % based on the total weight of the first polar organic solvent.
    Type: Application
    Filed: December 5, 2018
    Publication date: October 24, 2019
    Inventors: Ju Yeong Seong, Hong Seok Min, Yong Jun Jang, Yong Sub Yoon, Pil Gun Oh, Dong Wook Shin, Sun Ho Choi, Jong Yeob Park
  • Publication number: 20190198917
    Abstract: The present invention relates to a nitrogen-doped sulfide-based solid electrolyte for all-solid batteries. The a nitrogen-doped sulfide-based solid electrolyte for all-solid batteries includes a compound with an argyrodite-type crystal structure represented by the following Formula 1: LiaPSbNcXd??[Formula 1] wherein 6?a?7, 3<b<6, 0<c?1, 0<d?2, and each X is the same or different halogen atom selected from the group consisting of chlorine (Cl), bromine (Br), and iodine (I).
    Type: Application
    Filed: October 17, 2018
    Publication date: June 27, 2019
    Inventors: Ju Yeong Seong, Yong Jun Jang, Hong Seok Min, Sa Heum Kim, Yong Sub Yoon, Pil Gun Oh, Dong Wook Shin, Chan Hwi Park, Jin Oh Son
  • Publication number: 20190190007
    Abstract: Disclosed is a solid electrolyte for an all-solid battery and a method of preparing the same. Particularly, the solid electrolyte may have an argyrodite-type crystal structure.
    Type: Application
    Filed: November 5, 2018
    Publication date: June 20, 2019
    Inventors: Ju Yeong Seong, Yong Jun Jang, Pil Gun Oh, Yong Sub Yoon, Jae Min Lim, Sa Heum Kim, Hong Seok Min
  • Publication number: 20190173127
    Abstract: Disclosed is a method of preparing a sulfide-based solid electrolyte for an all-solid battery having an argyrodite-type crystal structure through a solution process. The method including obtaining a precursor solution by dissolving lithium sulfide, phosphorus sulfide and a halogen compound in a solvent, obtaining a precursor powder by removing the solvent from the precursor solution. Solid electrolyte for an all-solid battery can be produced by such method.
    Type: Application
    Filed: October 15, 2018
    Publication date: June 6, 2019
    Inventors: Yong Jun Jang, Pil Gun Oh, Hong Seok Min, Yong Sub Yoon, Sa Heum Kim, Ju Yeong Seong
  • Publication number: 20180323469
    Abstract: A method for preparing a solid electrolyte for an all-solid state battery, may include obtaining a slurry by dispersing a first raw material comprising lithium sulfide; and a second raw material selected from the group consisting of silicon sulfide, phosphorus sulfide, germanium sulfide, boron sulfide, and a combination thereof in a solvent; and drying the slurry.
    Type: Application
    Filed: December 4, 2017
    Publication date: November 8, 2018
    Applicants: Hyundai Motor Company, Kia Motors Corporation, Korea Institute of Science and Technology
    Inventors: Jae Min Lim, Ju Yeong Seong, Yong Jun Jang, Hun Gi Jung, Hyoung Chul Kim, Eu Deum Jung, Bin Na Yoon
  • Publication number: 20180323435
    Abstract: A cathode material may include a coating layer capable of preventing transition metal cations from being diffused between a cathode active material and a solid electrolyte when an all-solid state battery is charged and discharged, and a method for preparing the same.
    Type: Application
    Filed: December 4, 2017
    Publication date: November 8, 2018
    Applicants: Hyundai Motor Company, Kia Motors Corporation, Korea Institute of Science and Technology
    Inventors: Jae Min Lim, Ju Yeong Seong, Yong Jun Jang, Hyoung Chul Kim, Hun Gi Jung, Sung Jun Choi, Eu Deum Jung