Patents by Inventor Jae-gu Yoon

Jae-gu Yoon 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: 20200161645
    Abstract: A composite cathode active material, a method of preparing the composite cathode active material, a cathode including the composite cathode active material, and a lithium battery including the cathode. The composite cathode active material includes a lithium intercalatable material; and a garnet oxide, wherein an amount of the garnet oxide is about 1.9 wt % or less, based on a total weight of the composite cathode active material.
    Type: Application
    Filed: January 24, 2020
    Publication date: May 21, 2020
    Inventors: Jun-young MUN, Jae-myung LEE, Gue-sung KIM, Yoon-sok KANG, Myung-hoon KIM, Jun-ho PARK, Jin-hwan PARK, Jae-gu YOON, Byung-jin CHOI
  • Patent number: 10586980
    Abstract: A composite cathode active material, a method of preparing the composite cathode active material, a cathode including the composite cathode active material, and a lithium battery including the cathode. The composite cathode active material includes a lithium intercalatable material; and a garnet oxide, wherein an amount of the garnet oxide is about 1.9 wt % or less, based on a total weight of the composite cathode active material.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: March 10, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun-young Mun, Jae-myung Lee, Gue-sung Kim, Yoon-sok Kang, Myung-hoon Kim, Jun-ho Park, Jin-hwan Park, Jae-gu Yoon, Byung-jin Choi
  • Patent number: 10388990
    Abstract: An electrolyte for a lithium secondary battery, the electrolyte including: a lithium salt; a non-aqueous organic solvent; and a piperazine derivative represented by Formula 1 having an oxidation potential lower than an oxidation potential of the non-aqueous organic solvent by about 2 V to about 4 V: wherein, in Formula 1, X, Y, and R1 to R4 are defined in the specification.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: August 20, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yoon-sok Kang, Jun-young Mun, Min-sik Park, Jae-gu Yoon
  • Patent number: 10276870
    Abstract: A composite cathode active material including: a composite oxide capable of intercalation and deintercalation of lithium; a carbon nanostructure; and a material which is chemically inert to lithium.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: April 30, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun-ho Park, Jun-young Mun, Jin-hwan Park, Jae-gu Yoon
  • Patent number: 10276862
    Abstract: A composite cathode active material, a method of preparing the composite cathode active material, and a cathode and a lithium battery each including the composite cathode active material. The composite cathode active material includes a core including a lithium intercalatable oxide which enables intercalation and deintercalation of lithium; and a coating layer disposed on at least a portion of the core, wherein the conductive layer includes a lithium metal oxide which is an inactive lithium ion conductor, and wherein the lithium metal oxide contains a metal which has an atomic weight of 27 Daltons or more and is selected an element of Groups 3 to 14 of the Periodic Table of the Elements.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: April 30, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jun-young Mun, Jin-hwan Park, Gue-sung Kim, Jun-ho Park, Jae-gu Yoon
  • Publication number: 20180323426
    Abstract: A composite cathode active material, a method of preparing the composite cathode active material, a cathode including the composite cathode active material, and a lithium battery including the cathode. The composite cathode active material includes a lithium intercalatable material; and a garnet oxide, wherein an amount of the garnet oxide is about 1.9 wt % or less, based on a total weight of the composite cathode active material.
    Type: Application
    Filed: July 13, 2018
    Publication date: November 8, 2018
    Inventors: Jun-young MUN, Jae-myung LEE, Gue-sung KIM, Yoon-sok KANG, Myung-hoon KIM, Jun-ho PARK, Jin-hwan PARK, Jae-gu YOON, Byung-jin CHOI
  • Patent number: 10056608
    Abstract: A composite cathode active material, a method of preparing the composite cathode active material, a cathode including the composite cathode active material, and a lithium battery including the cathode. The composite cathode active material includes a lithium intercalatable material; and a garnet oxide, wherein an amount of the garnet oxide is about 1.9 wt % or less, based on a total weight of the composite cathode active material.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: August 21, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun-young Mun, Jae-myung Lee, Gue-sung Kim, Yoon-sok Kang, Myung-hoon Kim, Jun-ho Park, Jin-hwan Park, Jae-gu Yoon, Byung-jin Choi
  • Publication number: 20180026306
    Abstract: An electrolyte for a lithium secondary battery, the electrolyte including: a lithium salt; a non-aqueous organic solvent; and a piperazine derivative represented by Formula 1 having an oxidation potential lower than an oxidation potential of the non-aqueous organic solvent by about 2 V to about 4 V: wherein, in Formula 1, X, Y, and R1 to R4 are defined in the specification.
    Type: Application
    Filed: October 4, 2017
    Publication date: January 25, 2018
    Inventors: Yoon-sok KANG, Jun-young MUN, Min-sik PARK, Jae-gu YOON
  • Patent number: 9819054
    Abstract: An electrolyte for a lithium secondary battery, the electrolyte including: a lithium salt; a non-aqueous organic solvent; and a piperazine derivative represented by Formula 1 having an oxidation potential lower than an oxidation potential of the non-aqueous organic solvent by about 2 V to about 4 V: wherein, in Formula 1, X, Y, and R1 to R4 are defined in the specification.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: November 14, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yoon-sok Kang, Jun-young Mun, Min-sik Park, Jae-gu Yoon
  • Publication number: 20170155136
    Abstract: A composite cathode active material, a method of preparing the composite cathode active material, a cathode including the composite cathode active material, and a lithium battery including the cathode. The composite cathode active material includes a lithium intercalatable material; and a garnet oxide, wherein an amount of the garnet oxide is about 1.9 wt % or less, based on a total weight of the composite cathode active material.
    Type: Application
    Filed: February 14, 2017
    Publication date: June 1, 2017
    Inventors: Jun-young MUN, Jae-myung LEE, Gue-sung KIM, Yoon-sok KANG, Myung-hoon KIM, Jun-ho PARK, Jin-hwan PARK, Jae-gu YOON, Byung-jin CHOI
  • Patent number: 9620771
    Abstract: A cathode active material including a lithium metal oxide composite having a first domain and a second domain and represented by Formula 1: x[Li2-y(M1)1-z(M2)y+zO3]-(1?x)[LiMeO2]??Formula 1 wherein 0<x<1, 0?y<1, 0?z<1, 0<y+z<1, M1 includes at least one transition metal, M2 includes at least one metal selected from magnesium (Mg), aluminum (Al), vanadium (V), zinc (Zn), molybdenum (Mo), niobium (Nb), lanthanum (La), and ruthenium (Ru), and Me includes at least one metal selected from nickel (Ni), cobalt (Co), manganese (Mn), iron (Fe), chromium (Cr), titanium (Ti), copper (Cu), aluminum (Al), magnesium (Mg), zirconium (Zr), and boron (B).
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: April 11, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Myung-hoon Kim, Jae-gu Yoon, Min-sik Park, Jin-hwan Park
  • Patent number: 9601761
    Abstract: A composite cathode active material, a method of preparing the composite cathode active material, a cathode including the composite cathode active material, and a lithium battery including the cathode. The composite cathode active material includes a lithium intercalatable material; and a garnet oxide, wherein an amount of the garnet oxide is about 1.9 wt % or less, based on a total weight of the composite cathode active material.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: March 21, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun-young Mun, Jae-myung Lee, Gue-sung Kim, Yoon-sok Kang, Myung-hoon Kim, Jun-ho Park, Jin-hwan Park, Jae-gu Yoon, Byung-jin Choi
  • Patent number: 9444098
    Abstract: A positive active material including: a lithium-containing oxide, and a lithium-intercalatable phosphate compound disposed on the lithium-containing oxide.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: September 13, 2016
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Jun-ho Park, Jun-young Mun, Jin-hwan Park, Jae-gu Yoon
  • Patent number: 9373868
    Abstract: A composite cathode active material including a lithium metal oxide including an oxide Formula 1 and sulfur, xLi2MnO3.(1?x?y)LiMO2.yLiMn2O4??(1) wherein 0<x<0.6, 0<y<0.1, and M is at least one selected from a metal and a metalloid.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: June 21, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byung-jin Choi, Yoon-sok Kang, Jin-hwan Park, Jae-gu Yoon, Myung-hoon Kim, Jun-young Mun, Jun-ho Park, Sung-jin Ahn
  • Patent number: 9246171
    Abstract: A cathode active material including a lithium metal oxide represented by Formula 1: Li[LixMeyM?z]O(2+d)??Formula 1 wherein x+y+z=1, 0<x<0.33, 0<z?0.1, and 0?d?0.1, Me is at least one metal selected from Mn, V, Cr, Fe, Co, Ni, Al, and B, and M? is at least one metal selected from Sc, Y, and La.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: January 26, 2016
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Byung-jin Choi, Jae-gu Yoon, Myung-hoon Kim, Jin-hwan Park, David Keogh, Steven Kaye, Wei Tong
  • Patent number: 8999579
    Abstract: An anode includes a collector; and an anode active material layer disposed on the collector comprises an anode active material, which is lithium oxide coated Li4Ti5O12, a conductive material, and a binder, wherein the lithium oxide intercalates and/or deintercalates lithium ions into and from the lattice structure of Li4Ti5O12. By coating the surface of the anode active material with lithium oxide, an anode including the surface-treated anode active material has a high capacity, high-rate properties, and a high initial efficiency.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: April 7, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Joung-won Park, Yoon-sok Kang, Han-su Kim, Jae-gu Yoon, Gue-sung Kim
  • Publication number: 20150079465
    Abstract: A composite cathode active material including a lithium metal oxide including an oxide Formula 1 and sulfur, xLi2MnO3.(1?x?y)LiMO2.yLiMn2O4??(1) wherein 0<x<0.6, 0<y<0.1, and M is at least one selected from a metal and a metalloid.
    Type: Application
    Filed: September 15, 2014
    Publication date: March 19, 2015
    Inventors: Byung-jin CHOI, Yoon-sok KANG, Jin-hwan PARK, Jae-gu YOON, Myung-hoon KIM, Jun-young MUN, Jun-ho PARK, Sung-jin AHN
  • Publication number: 20150064578
    Abstract: An electrolyte for a lithium secondary battery, the electrolyte including: a lithium salt; a non-aqueous organic solvent; and a piperazine derivative represented by Formula 1 having an oxidation potential lower than an oxidation potential of the non-aqueous organic solvent by about 2 V to about 4 V: wherein, in Formula 1, X, Y, and R1 to R4 are defined in the specification.
    Type: Application
    Filed: July 9, 2014
    Publication date: March 5, 2015
    Inventors: Yoon-sok KANG, Jun-young MUN, Min-sik PARK, Jae-gu YOON
  • Publication number: 20150037680
    Abstract: A composite cathode active material including: a composite oxide capable of intercalation and deintercalation of lithium; a carbon nanostructure; and a material which is chemically inert to lithium.
    Type: Application
    Filed: June 23, 2014
    Publication date: February 5, 2015
    Inventors: Jun-ho PARK, Jun-young MUN, Jin-hwan PARK, Jae-gu YOON
  • Publication number: 20140377655
    Abstract: A composite cathode active material, a method of preparing the composite cathode active material, a cathode including the composite cathode active material, and a lithium battery including the cathode. The composite cathode active material includes a lithium intercalatable material; and a garnet oxide, wherein an amount of the garnet oxide is about 1.9 wt % or less, based on a total weight of the composite cathode active material.
    Type: Application
    Filed: April 25, 2014
    Publication date: December 25, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jun-young MUN, Jae-myung LEE, Gue-sung KIM, Yoon-sok KANG, Myung-hoon KIM, Jun-ho PARK, Jin-hwan PARK, Jae-gu YOON, Byung-jin CHOI