Patents by Inventor Hong-seok Min

Hong-seok Min 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: 20210083322
    Abstract: A method of manufacturing a cathode for an all-solid-state battery includes: stacking a protective member on a cathode current collector, the protective member including a protective layer and a mask layer disposed on the protective layer and having a central portion which is an empty space; coating the protective member with a cathode material so that the central portion of the protective member is filled with the cathode material; and removing the mask layer to form a cathode coating layer.
    Type: Application
    Filed: September 2, 2020
    Publication date: March 18, 2021
    Inventors: Yong Gu Kim, Yun Sung Kim, Ji Na Kim, Sa Heum Kim, Hong Seok Min
  • Publication number: 20210043963
    Abstract: The present disclosure relates to a method of manufacturing a sulfide solid electrolyte and a sulfide solid electrolyte manufactured thereby, and more particularly to a method of manufacturing a sulfide solid electrolyte and a sulfide solid electrolyte manufactured thereby, in which the sulfide solid electrolyte includes two or more sulfide compounds, thus improving the atmospheric stability of the solid electrolyte and reducing the generation of toxic gas.
    Type: Application
    Filed: May 20, 2020
    Publication date: February 11, 2021
    Inventors: In Woo Song, Hong Seok Min, Yong Jun Jang, Sa Heum Kim, So Young Yoon, Yung Sup Youn, Kyung Ho Kim, Sang Wook Han, Se Man Kwon
  • 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: 20200350611
    Abstract: Disclosed are an all-solid-state battery having high energy density and a method for manufacturing the same. One battery structure is pressed instead of pressing each cell unit, an amount of first or second electrode current collectors consumed is reduced, and insulating members are used, thereby simplifying a manufacturing process of the all-solid-state battery and allowing the all-solid-state battery to have high energy density and a stable structure.
    Type: Application
    Filed: December 5, 2019
    Publication date: November 5, 2020
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Yong Seok CHOI, Hong Seok MIN, Soon Chul BYUN, Yun Sung KIM, Yong Gu KIM, Jae Min LIM
  • Patent number: 10818970
    Abstract: Disclosed is an all-solid battery, including a cathode, an anode, and a solid electrolyte layer. The solid electrolyte layer may include a first solid electrolyte having an ionic conductivity ranging from greater than about 5×10?3 S/cm to about 1×10?1 S/cm and a second solid electrolyte having an ionic conductivity ranging from greater than about 5×10?4 S/cm to about 1×10?2 S/cm.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: October 27, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Yong Sub Yoon, Yun Sung Kim, Pil Gun Oh, Hong Seok Min, Oh Min Kwon
  • Patent number: 10756352
    Abstract: Provided is an electrode active material slurry including a clustered complex and a slurry, wherein the clustered complex includes an electrode active material, a solid electrolyte, a conductive material, and a first binder, and the slurry includes a solvent and a second binder. The electrode active material slurry may include the clustered complex including the first binder and the slurry including the second binder so as to decrease a surface area of the overall complex, such that adhesion property with the current collector may be sufficiently secured even by using a small amount of binder, and performance of the all-solid secondary battery may be further improved.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: August 25, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Industry-University Cooperation Foundation Hanyang University
    Inventors: Yong Sub Yoon, Hong Seok Min, Kyung Su Kim, Oh Min Kwon, Dong Wook Shin, Sung Woo Noh, Lak Young Choi
  • 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: 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
  • 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: 20200144664
    Abstract: An all-solid-state battery includes: a cathode substrate; a cathode portion; a solid electrolyte layer; an anode portion; and an anode substrate. The cathode portion includes a cathode active material, a first solid electrolyte, a conductive material, and a binder, the anode portion is configured by a first anode portion having a pore structure and a second anode portion having metal foil, and the first anode portion includes a second solid electrolyte, a conductive material, and a binder.
    Type: Application
    Filed: January 8, 2020
    Publication date: May 7, 2020
    Inventors: Dong Hui Kim, Sang Jin Park, Sung Hoon Lim, Shin Kook Kong, Sang Heon Lee, Sang Mok Park, Hong Seok Min
  • Patent number: 10629962
    Abstract: A vehicular battery module that is capable of securing the stability of a vehicle by inducing self-discharge of a battery cell when the battery is overcharged includes: a plurality of stacked battery cells, each of which includes a battery pouch and electrode terminals extending outwards from the battery pouch, and a variable-resistor disposed between the electrode terminals of the one-side battery pouch and the other-side battery pouch so as to electrically connect the two electrode terminals to each other.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: April 21, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Pil Gun Oh, Yong Sub Yoon, Sang Mo Kim, Yun Sung Kim, Hong Seok Min, Oh Min Kwon
  • 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
  • Patent number: 10622616
    Abstract: Disclosed are an all-solid state battery and a method of manufacturing the same. The all-solid state battery includes: a current collector comprising an electrode mixture comprising an active material, a conductive material, a binder, and a nano-solid electrolyte; and a composite electrode comprising microcapsules. The electrode mixture is formed in a slurry and the microcapsules are configured to coat the slurry on the current collector.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: April 14, 2020
    Assignee: Hyundai Motor Company
    Inventors: Sang Heon Lee, Hong Seok Min, Oh Min Kwon, Yong Sub Yoon, Kyung Su Kim
  • Patent number: 10566656
    Abstract: An all-solid-state battery includes: a cathode substrate; a cathode portion; a solid electrolyte layer; an anode portion; and an anode substrate. The cathode portion includes a cathode active material, a first solid electrolyte, a conductive material, and a binder, the anode portion is configured by a first anode portion having a pore structure and a second anode portion having metal foil, and the first anode portion includes a second solid electrolyte, a conductive material, and a binder.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: February 18, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Dong Hul Kim, Sang Jin Park, Sung Hoon Lim, Shin Kook Kong, Sang Heon Lee, Sang Mok Park, Hong Seok Min
  • Publication number: 20190341616
    Abstract: Provided is an electrode active material slurry including a clustered complex and a slurry, wherein the clustered complex includes an electrode active material, a solid electrolyte, a conductive material, and a first binder, and the slurry includes a solvent and a second binder. The electrode active material slurry may include the clustered complex including the first binder and the slurry including the second binder so as to decrease a surface area of the overall complex, such that adhesion property with the current collector may be sufficiently secured even by using a small amount of binder, and performance of the all-solid secondary battery may be further improved.
    Type: Application
    Filed: July 15, 2019
    Publication date: November 7, 2019
    Inventors: Yong Sub Yoon, Hong Seok Min, Kyung Su Kim, Oh Min Kwon, Dong Wook Shin, Sung Woo Noh, Lak Young Choi
  • 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
  • Patent number: 10411294
    Abstract: Disclosed is a method of manufacturing an all-solid state battery. The method includes coating a first slurry or composition having on a substrate to form a first electrolyte layer a predetermined thickness, coating a second slurry or composition on the first electrolyte layer to form a second electrolyte layer having a predetermined thickness, laminating an electrode layer on the second electrolyte layer, bonding the electrode layer to the second electrolyte layer through pressing, and removing the substrate from the first electrolyte layer. The first slurry or composition of the first electrolyte layer has content of a binder less than that of the second slurry or composition of the second electrolyte layer, and thus, the substrate may be easily removed from the first electrolyte layer.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: September 10, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Industry-University Cooperation Foundation Hanyang University
    Inventors: Yong Sub Yoon, Hong Seok Min, Kyung Su Kim, Oh Min Kwon, Dong Wook Shin, Sung Woo Noh, Lak Young Choi
  • Patent number: 10396362
    Abstract: Provided is an electrode active material slurry including a clustered complex and a slurry, wherein the clustered complex includes an electrode active material, a solid electrolyte, a conductive material, and a first binder, and the slurry includes a solvent and a second binder. The electrode active material slurry may include the clustered complex including the first binder and the slurry including the second binder so as to decrease a surface area of the overall complex, such that adhesion property with the current collector may be sufficiently secured even by using a small amount of binder, and performance of the all-solid secondary battery may be further improved.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: August 27, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Industry-University Cooperation Foundation Hanyang University
    Inventors: Yong Sub Yoon, Hong Seok Min, Kyung Su Kim, Oh Min Kwon, Dong Wook Shin, Sung Woo Noh, Lak Young Choi