Patents by Inventor Oh Min KWON

Oh Min KWON 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: 10971649
    Abstract: An embodiment relates to a semiconductor device and a light emitting device package including the same. The semiconductor device according to the embodiment may include: a first semiconductor layer; a second semiconductor layer disposed on the first semiconductor layer and including V-pits; an active layer disposed on the second semiconductor layer; a third semiconductor layer having a bandgap wider than that of the active layer on the active layer; a fourth semiconductor layer having a band gap narrower than that of third semiconductor layer on the third semiconductor layer; and a fifth semiconductor layer having a bandgap wider than that of the fourth semiconductor layer on the fourth semiconductor layer, wherein the third semiconductor layer and the fifth semiconductor layer include an aluminum composition, and the fifth semiconductor layer has a bandgap equal to or wider than that of the third semiconductor layer.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: April 6, 2021
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Jong Ho Na, Oh Min Kwon, June O Song, Jeong Tak Oh
  • Publication number: 20210005929
    Abstract: An improved, low porosity, solid electrolyte membrane and a method of manufacturing the solid electrolyte membrane are provided. The low porosity, solid electrolyte membrane significantly improves both mechanical strength and porosity of the membrane, inhibits the growth of lithium dendrites (Li dendrites), and thereby maintains and maximizes electrochemical stability of an all-solid-state battery. This is accomplished by wet-coating a sulfide or oxide solid electrolyte particle with a thermoplastic resin, or a mixture of the thermoplastic resin and a thermosetting resin, using a solvent to prepare a composite and hot-pressing the composite at a relatively low temperature and at a low pressure.
    Type: Application
    Filed: September 22, 2020
    Publication date: January 7, 2021
    Inventors: Oh Min Kwon, Hong Seok Min, Yong Sub Yoon, Kyung Su Kim, Dae Yang Oh, Yoon Seok Jung, Young Jin Nam, Sung Hoo Jung
  • Patent number: 10818971
    Abstract: An improved, low porosity, solid electrolyte membrane and a method of manufacturing the solid electrolyte membrane are provided. The low porosity, solid electrolyte membrane significantly improves both mechanical strength and porosity of the membrane, inhibits the growth of lithium dendrites (Li dendrites), and thereby maintains and maximizes electrochemical stability of an all-solid-state battery. This is accomplished by wet-coating a sulfide or oxide solid electrolyte particle with a thermoplastic resin, or a mixture of the thermoplastic resin and a thermosetting resin, using a solvent to prepare a composite and hot-pressing the composite at a relatively low temperature and at a low pressure.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: October 27, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Oh Min Kwon, Hong Seok Min, Yong Sub Yoon, Kyung Su Kim, Dae Yang Oh, Yoon Seok Jung, Young Jin Nam, Sung Hoo Jung
  • 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
  • Publication number: 20200328450
    Abstract: Provided are an anode for an all solid cell and a method of fabricating the same. The anode may include an anode current collector, a conductive material of which one end contacts a part of the anode current collector, a conductive coating layer surrounding the conductive material, an anode active material which contacts the other end of the conductive material, and a solid electrolyte. The conductive coating layer may prevent the conductive material and the solid electrolyte from being electrically connected to each other.
    Type: Application
    Filed: June 30, 2020
    Publication date: October 15, 2020
    Inventors: Oh Min Kwon, Yong Sub Yoon, Sung Woo Noh, Sun Ho Choi, Moon Ju Cho, Dong Wook Shin, Chan Hwi Park
  • Publication number: 20200303764
    Abstract: Disclosed are a positive electrode active material capable of suppressing a reaction between a core and a solid electrolyte, a method of manufacturing the same and an all-solid battery including the same. Provided is a positive electrode active material for all-solid batteries including a core comprising a lithium-containing metal oxide, and a coating layer comprising LiI applied to the surface of the core.
    Type: Application
    Filed: June 9, 2020
    Publication date: September 24, 2020
    Inventors: Oh Min Kwon, Hong Seok Min, Yong Sub Yoon, Kyung Su Kim, Yoon Seok Jung, Young Jin Nam, Dae Yang Oh, Sung Hoo Jung
  • Patent number: 10777846
    Abstract: Provided is a method for preparing a needle-like sulfide-based solid electrolyte. The method may include: preparing a solid electrolyte admixture comprising an organic solvent, Li2S, P2S5, and LiCl; synthesizing a solid electrolyte by stirring the solid electrolyte admixture at a temperature of about 30 to 60° C. for about 22 to 26 hours; first stirring the solid electrolyte at a speed of about 80 to 120 rpm for about 5 to 10 minutes; after the first stirring, second stirring the first stirred solid electrolyte at a speed of about 250 to 300 rpm; vacuum-drying the second stirred solid electrolyte for about 12 to 24 hours; and heat-treating the vacuum-dried solid electrolyte at a temperature of about 350 to 550° C. for about 1 to 5 hours.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: September 15, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation, IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
    Inventors: Oh Min Kwon, Yong Sub Yoon, Sung Woo Noh, Seung Hyun Oh, Sun Ho Choi, Dong Wook Shin, Chan Hwi Park
  • 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
  • Patent number: 10741875
    Abstract: Provided are an anode for an all solid cell and a method of fabricating the same. The anode may include an anode current collector, a conductive material of which one end contacts a part of the anode current collector, a conductive coating layer surrounding the conductive material, an anode active material which contacts the other end of the conductive material, and a solid electrolyte. The conductive coating layer may prevent the conductive material and the solid electrolyte from being electrically connected to each other.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: August 11, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation, IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
    Inventors: Oh Min Kwon, Yong Sub Yoon, Sung Woo Noh, Sun Ho Choi, Moon Ju Cho, Dong Wook Shin, Chan Hwi Park
  • Patent number: 10714786
    Abstract: Disclosed are a positive electrode active material capable of suppressing a reaction between a core and a solid electrolyte, a method of manufacturing the same and an all-solid battery including the same. Provided is a positive electrode active material for all-solid batteries including a core comprising a lithium-containing metal oxide, and a coating layer comprising LiI applied to the surface of the core.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: July 14, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Oh Min Kwon, Hong Seok Min, Yong Sub Yoon, Kyung Su Kim, Yoon Seok Jung, Young Jin Nam, Dae Yang Oh, Sung Hoo Jung
  • Patent number: 10686168
    Abstract: A method of manufacturing a short-preventive all-solid-state battery in which a thermosetting insulating resin applied in advance to a pouch-type electrode case provided with an electrode assembly received therein is forced to fill a space between the edges of the electrode assembly during packaging of the electrode assembly to fill vacant spaces between electrodes at the edges of the electrode assembly and may thus prevent physical contact and collision between the electrodes and fundamentally prevent generation of a short circuit caused thereby.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: June 16, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Yong Sub Yoon, Pil Gun Oh, Oh Min Kwon, 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
  • 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
  • Publication number: 20190348567
    Abstract: An embodiment relates to a semiconductor device and a light emitting device package including the same. The semiconductor device according to the embodiment may include: a first semiconductor layer; a second semiconductor layer disposed on the first semiconductor layer and including V-pits; an active layer disposed on the second semiconductor layer; a third semiconductor layer having a bandgap wider than that of the active layer on the active layer; a fourth semiconductor layer having a band gap narrower than that of third semiconductor layer on the third semiconductor layer; and a fifth semiconductor layer having a bandgap wider than that of the fourth semiconductor layer on the fourth semiconductor layer, wherein the third semiconductor layer and the fifth semiconductor layer include an aluminum composition, and the fifth semiconductor layer has a bandgap equal to or wider than that of the third semiconductor layer.
    Type: Application
    Filed: January 4, 2018
    Publication date: November 14, 2019
    Inventors: Jong Ho NA, Oh Min KWON, June O SONG, Jeong Tak OH
  • 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: 20190288286
    Abstract: The present disclosure provides an all-solid battery for a vehicle, which includes a cathode, a solid electrolyte layer disposed on the cathode, and an anode disposed on the solid electrolyte layer. The solid electrolyte layer includes a solid electrolyte and a ceramic which is a nonconductor.
    Type: Application
    Filed: November 2, 2018
    Publication date: September 19, 2019
    Inventors: Sang Heon LEE, Sang Mo KIM, Yun Sung KIM, Oh Min KWON, Jae Min LIM
  • 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: 10411247
    Abstract: A fabrication method of an electrode for an all solid cell includes: providing a sulfide-based solid electrolyte; forming a coating layer on a surface of the sulfide-based solid electrolyte by heating a nonmetallic oxide at 300 to 700° C.; forming electrode slurry by mixing an electrode active material, the sulfide-based solid electrolyte formed with the coating layer, and a conductive material with a polar solvent; casting the electrode slurry on at least one surface of an electrode current collector; removing the polar solvent by heating the cast electrode slurry at 100 to 300° C.; and removing the coating layer by heating the electrode slurry from which the polar solvent is removed at 300 to 700° C.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: September 10, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation, IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
    Inventors: Oh Min Kwon, Yong Sub Yoon, Sung Woo Noh, Sun Ho Choi, Jin Oh Son, Dong Wook Shin, Chan Hwi Park
  • 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
  • Publication number: 20190198916
    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: Application
    Filed: October 17, 2018
    Publication date: June 27, 2019
    Inventors: Yong Sub Yoon, Yun Sung Kim, Pil Gun Oh, Hong Seok Min, Oh Min Kwon