Patents by Inventor Seok Koo Kim

Seok Koo Kim 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: 10879556
    Abstract: Disclosed is an electrode whose surface includes an organic/inorganic composite porous coating layer comprising heat-absorbing inorganic particles and a binder polymer, wherein the heat-absorbing inorganic particle is at least one particle selected from the group consisting of antimony-containing compounds, metal hydroxides, guanidine-based compounds, born-containing compounds and zinc tartrate compounds. A separator using the heat-absorbing inorganic particles as a component for forming or coating the separator, and an electrochemical device including the electrode and/or the separator are also disclosed. The separator using the heat-absorbing inorganic particles as a component for forming or coating the separator can ensure excellent thermal safety and minimizes degradation of the quality of a battery.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: December 29, 2020
    Inventors: Seok-Koo Kim, Hyun-Min Jang, Sang-Young Lee, Jang-Hyuk Hong
  • Publication number: 20200403230
    Abstract: A negative electrode for a lithium secondary battery, where the negative electrode includes a negative electrode current collector, a negative electrode active material layer, a lithium layer that is positioned between the negative electrode current collector and the negative electrode active material layer, and a primer layer that is positioned between the negative electrode current collector and the lithium layer, and a manufacturing method thereof. This results in a simple method and a negative electrode with high capacity characteristics.
    Type: Application
    Filed: November 21, 2018
    Publication date: December 24, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Yeon Suk HONG, Seok Koo KIM, Sun Kyu KIM, Ji Won MIN
  • Publication number: 20200402716
    Abstract: A multilayer capacitor includes a body, including a stacked structure formed of a plurality of dielectric layers and a plurality of internal electrodes, and a plurality of external electrodes. Each external electrode includes a conductive layer, disposed at the end of the body and connected to the plurality of internal electrodes, and a plating layer covering the conductive layer. Each conductive layer includes nickel (Ni) and barium titanate (BT), and an area occupied by nickel with respect to the total area of the respective conductive layer is 30% to 65%.
    Type: Application
    Filed: September 2, 2020
    Publication date: December 24, 2020
    Inventors: Sung Hyung KANG, Yong Koo KIM, Hyung Kyu KIM, Won Hee YOO, Jong Hyun CHO, Byung Kil YUN, Seok Kyoon WOO, Hyun Sung DONG
  • Patent number: 10873105
    Abstract: Provided are an electrode for a secondary battery and a manufacturing method thereof. According to the present invention, a secondary battery, which has high capacity and is also able to get an excellent evaluation in a nail penetration test so that stability is ensured, may be manufactured. In order to accomplish the above objectives, the present invention provides an electrode for a secondary battery which includes an electrode current collector; a first electrode active material layer formed on the electrode current collector; and a second electrode active material layer formed on the first electrode active material layer, wherein a layer composed of the electrode current collector and the first electrode active material layer has a tensile strain of 1.2% or less.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: December 22, 2020
    Inventors: Ji Won Min, Hoe Jin Hah, Jong Keon Yoon, Seok Koo Kim, Yeo Kyung Yoon, Janis Doelle
  • Publication number: 20200335773
    Abstract: A positive electrode mix, a positive electrode, and a lithium secondary battery, each including the positive electrode mix, are provided. Specifically, the positive electrode mix includes lithium peroxide (Li2O2) and platinum (Pt), thereby effectively counterbalancing an irreversible capacity imbalance between both electrodes and further increasing the initial charge capacity of the positive electrode.
    Type: Application
    Filed: November 27, 2018
    Publication date: October 22, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Jooyong Song, Seok Koo Kim, In Chul Kim, Juri Kim
  • Patent number: 10796855
    Abstract: A multilayer capacitor includes a body, including a stacked structure formed of a plurality of dielectric layers and a plurality of internal electrodes, and a plurality of external electrodes. Each external electrode includes a conductive layer, disposed at the end of the body and connected to the plurality of internal electrodes, and a plating layer covering the conductive layer. Each conductive layer includes nickel (Ni) and barium titanate (BT), and an area occupied by nickel with respect to the total area of the respective conductive layer is 30% to 65%.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: October 6, 2020
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Sung Hyung Kang, Yong Koo Kim, Hyung Kyu Kim, Won Hee Yoo, Jong Hyun Cho, Byung Kil Yun, Seok Kyoon Woo, Hyun Sung Dong
  • Publication number: 20200295410
    Abstract: A method for regenerating a lithium secondary battery including a lithium resupply step in which a lithium resupply electrode is provided in the secondary battery, and the positive electrode is set as a counter electrode, and the lithium resupply electrode is set as a working electrode to charge lithium ions to the positive electrode through the lithium resupply electrode and a negative electrode discharging step in which, after the lithium ions are resupplied to the positive electrode through the lithium resupply step, the lithium resupply electrode is set as the counter electrode, and the negative electrode is set as the working electrode to completely discharge the negative electrode up to a discharge limit.
    Type: Application
    Filed: July 10, 2018
    Publication date: September 17, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Chul Gi Hong, Jae Hyun Lee, Seok Koo Kim, Dong Kyu Kim, Dae Soo Kim
  • Publication number: 20200287196
    Abstract: The present invention provides a single electrode assembly, in which a plurality of negative electrodes and positive electrodes are stacked alternately and repeatedly, and separators are disposed between the plurality of negative electrodes and positive electrodes, the electrode assembly including: a negative electrode tab part formed on one end of the electrode assembly and extending from the plurality of negative electrodes; a positive electrode bus bar spaced apart from the negative electrode tab part on the one end of the electrode assembly and electrically connecting the plurality of the positive electrodes; a positive electrode tab part formed on the other end of the electrode assembly opposite to the one end and extending from the plurality of positive electrodes; and a negative electrode bus bar spaced apart from the positive electrode tab part on the other end of the electrode assembly and electrically connecting the plurality of the negative electrodes.
    Type: Application
    Filed: July 11, 2019
    Publication date: September 10, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Soon Hyung Choi, Su Rim Lee, Seok Koo Kim
  • Patent number: 10770763
    Abstract: The present invention relates to a battery cell in which a foil functioning as a busbar is adopted in the battery cell, and thus, the resistance of the battery cell is reduced to increase the output of the battery cell.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: September 8, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Sun Kyu Kim, Seok Koo Kim, Jin Hyung Lim
  • Publication number: 20200242081
    Abstract: Provided are a device and method for sharing big data using a blockchain. The method of sharing big data using a blockchain includes receiving a search condition from a user terminal, searching a blockchain network for metadata meeting the received search condition and acquiring found metadata, acquiring shared data stored in a distributed storage using the acquired metadata, and transmitting the acquired shared data to the user terminal.
    Type: Application
    Filed: January 30, 2019
    Publication date: July 30, 2020
    Inventors: Seok Woo Lee, Duk Soo Kim, Sang Gyoo Sim, Min Woo Nam, Kwon Koo Kwak, Jae Yeon Yoon
  • Publication number: 20200227724
    Abstract: Provided is a positive electrode for a lithium secondary battery, the positive electrode including a positive electrode mixture layer on a positive electrode current collector, wherein the positive electrode mixture layer includes a positive electrode active material and a lithium ion additive, the lithium ion additive is a lithium ion conductive ceramic material represented by Formula 1 below, and the lithium ion conductive ceramic material has a structure in which lithium ions are additionally inserted into vacancy sites of a NASICON-type (Na super ionic conductors-type) structure. Li1+x1+y1M12?x1M2x1(PO4)3 ??[Formula 1] In Formula 1, M1 is at least one of Ti and Ge, M2 is one or more selected from the group consisting Al, Cr, Ga, Fe, Sn, In, Lu, Y, and La, and 0<x?0.3, and 1.7?y1?2.0.
    Type: Application
    Filed: July 9, 2018
    Publication date: July 16, 2020
    Applicants: LG Chem, Ltd., UNIST (Ulsan National Institute of Science and Technology)
    Inventors: Ji Won Min, Seok Koo Kim, Youngsik Kim, Janis Doelle, Seongwoo Heo, Youngjun Lim
  • Publication number: 20200227729
    Abstract: Provided are a positive electrode and a lithium secondary battery which have high energy capacity and include a nickel-containing positive electrode active material, and an additive including metal particles and lithium oxide.
    Type: Application
    Filed: June 27, 2018
    Publication date: July 16, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Jooyong Song, Seok Koo Kim, In Chul Kim, Ju Ri Kim, Myung Ki Lee
  • Publication number: 20200227753
    Abstract: An electrode including a lithium diffusion rate-controlling layer and a lithium layer stacked successively on the surface thereof, and a method for manufacturing the same are disclosed. The electrode includes: a current collector; an electrode active material layer formed on the surface of the current collector; a lithium diffusion rate-controlling layer formed on the surface of the electrode active material layer; and a lithium layer containing a lithium metal ingredient and formed on the surface of the lithium diffusion rate-controlling layer.
    Type: Application
    Filed: January 25, 2019
    Publication date: July 16, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Yeon-Suk HONG, Seok-Koo KIM, Sun-Kyu KIM
  • Patent number: 10673045
    Abstract: The present disclosure refers to a secondary battery which comprises a high-voltage cathode active material and a separator whose pores are not obstructed even though being used together with the high-voltage cathode active material, thereby preventing the obstruction of pores in the separator and the formation of a dendrite in the anode and eventually providing good battery life performance.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: June 2, 2020
    Assignees: LG Chem, Ltd., TORAY INDUSTRIES, INC.
    Inventors: Sung-Hoon Yu, Jung-Don Suk, Seok-Koo Kim, Doo-Kyung Yang, Yoo-Sun Kang, Kyung-Mi Lee, Jin-Hyun Park
  • Patent number: 10644298
    Abstract: The present invention provides a battery cell including: an electrode assembly including an electrode tab protruding toward at least one external side; a battery case including a receiving portion on which the electrode assembly is received; and an electrode lead connected to the electrode tab to be connected to an external device, wherein the electrode lead may include: a tab connecting portion electrically connected to the electrode tab; and a protruding extension protruding outside of the battery case in a state of extending from the tab connecting portion to be electrically connected to the external device, and the tab connecting portion may be formed so that a length of a width direction perpendicular to a protruding direction of the electrode tab may be relatively larger than that of the electrode tab.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: May 5, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Yong Jun Kim, Seok Koo Kim, Chae Ah Kim, Se Mi Park, Seung Hyun Chung
  • Publication number: 20200127265
    Abstract: The present disclosure relates to a separator for a lithium ion secondary battery and a battery comprising the separator. The separator supplements the irreversible capacity of a negative electrode. The separator comprises composite particles (A), and the composite particles (A) include a core portion comprising lithium composite metal oxide particles and a shell portion comprising a carbonaceous material with which the core surface is coated at least partially; the composite particles (A) cause lithium deintercalation at 0.1 V to 2.5 V (vs. Li+/Li); the battery has a positive electrode potential of 3 V or more (vs. Li+/Li); and the battery has a driving voltage of 2.5 V to 4.5 V.
    Type: Application
    Filed: September 29, 2017
    Publication date: April 23, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Ji-Won MIN, Seok-Koo KIM, Hoe-Jin HAH, Janis DOELLE
  • Publication number: 20200058443
    Abstract: A multilayer capacitor includes a body, including a stacked structure formed of a plurality of dielectric layers and a plurality of internal electrodes, and a plurality of external electrodes. Each external electrode includes a conductive layer, disposed at the end of the body and connected to the plurality of internal electrodes, and a plating layer covering the conductive layer. Each conductive layer includes nickel (Ni) and barium titanate (BT), and an area occupied by nickel with respect to the total area of the respective conductive layer is 30% to 65%.
    Type: Application
    Filed: November 8, 2018
    Publication date: February 20, 2020
    Inventors: Sung Hyung KANG, Yong Koo KIM, Hyung Kyu KIM, Won Hee YOO, Jong Hyun CHO, Byung Kil YUN, Seok Kyoon WOO, Hyun Sung DONG
  • Publication number: 20200035971
    Abstract: The present invention provides an electrode assembly in which a plurality of unit cells are disposed, wherein one of the unit cells comprises: a first double-sided electrode in which a slurry is on opposite surfaces of a first collector; a separator adjacent to the first double-sided electrode; a second double-sided electrode adjacent to the separator and in which a slurry is on opposite surfaces of a second collector; and a single-sided electrode adjacent to the second double-sided electrode and in which the slurry is only on one surface of a third collector, the one surface facing the second double-sided electrode, the single-sided electrode having a coating layer on the slurry thereof, the coating layer preventing contact between the slurry of the single-sided electrode and the slurry on one of the surfaces of the second collector that faces the single-sided electrode, the coating layer allowing ions to pass therethrough.
    Type: Application
    Filed: November 30, 2018
    Publication date: January 30, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Yong Jun Kim, Seok Koo Kim
  • Publication number: 20200035995
    Abstract: A method of manufacturing a high loading electrode, which prevents the phenomenon of the binder being lifted, does not cause drying of the electrode slurry, and does not cause damage of the electrode layer and reduction of the electrode strength at the corners in the punching is provided. The method of manufacturing the high loading electrode includes applying an electrode slurry on a release film to thereby produce an electrode layer having the release film attached thereto, punching the electrode layer having the release film attached thereto to provide a plurality of punched electrode layers, each punched electrode layer having a size of a unit electrode, separating and removing the release film from the punched electrode layers, and stacking and rolling at least two punched electrode layers on a current collector.
    Type: Application
    Filed: March 8, 2018
    Publication date: January 30, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Ji Won MIN, Seok Koo KIM, Yong Jun KIM, Janis DOELLE, Se Mi PARK
  • Patent number: 10547090
    Abstract: Disclosed herein is a battery cell including: an electrode assembly including an electrode tab protruding toward at least one outer periphery; a battery case including an accommodation part in which the electrode assembly is mounted; and an electrode lead connected to the electrode tab for electrical connection with an external device, wherein the electrode lead includes: a tab connection part electrically connected to the electrode tab; and a protrusion extension part extended from the tab connection part and protruding outwardly of the battery case to thereby be electrically connected to the external device, the tab connection part being coated with a gas adsorbent.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: January 28, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Yong Jun Kim, Seok Koo Kim, Seung Hyun Chung