Patents by Inventor Eui Tae Kim

Eui Tae 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).

  • Publication number: 20240030492
    Abstract: An electrolyte solution for a lithium secondary battery, which is capable of not only operating at a low temperature by lowering resistance, but also securing the stable lifetime characteristics of the battery, and increasing the discharging capacity at a low temperature. The electrolyte solution for the lithium secondary battery includes a first solvent including at least one glyme-based compound; a second solvent including at least one conjugated heterocyclic compound; a third solvent including at least one non-conjugated cyclic ether-based compound; and lithium salt.
    Type: Application
    Filed: May 12, 2021
    Publication date: January 25, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Jaegil LEE, Suenghoon HAN, Seonghyo PARK, Eui Tae KIM, Myeongjun SONG, Kyungsik HONG, Minsu KIM
  • Publication number: 20240021803
    Abstract: A sulfur-carbon composite including a porous carbon material; and sulfur coated on at least a portion of an inside and a surface of the porous carbon material, wherein a pore volume of the sulfur-carbon composite is 0.04 to 0.400 cm3/g and a specific surface area of the sulfur-carbon composite is 4.0 to 30 m2/g, and a method for preparing the same.
    Type: Application
    Filed: April 11, 2023
    Publication date: January 18, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Eui Tae KIM, Suenghoon HAN, Kwonnam SOHN, Doo Kyung YANG
  • Patent number: 11837731
    Abstract: A positive electrode active material for a lithium secondary battery, including a sulfur-carbon composite and a coating layer located on a surface of the sulfur-carbon composite and including a carbon nanostructure and iron oxyhydroxynitrate.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: December 5, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Suenghoon Han, Eui Tae Kim
  • Publication number: 20230231193
    Abstract: The present disclosure relates to an electrolyte solution for a lithium-sulfur secondary battery comprising a lithium salt, a non-aqueous solvent and a cyclic anhydride compound, and a lithium-sulfur secondary battery containing the same.
    Type: Application
    Filed: March 21, 2022
    Publication date: July 20, 2023
    Inventors: Jaegil LEE, Eui Tae KIM, Unho JUNG
  • Publication number: 20230223166
    Abstract: There is provided a high dielectric film including amorphous hydrocarbon of which a dielectric constant is 10 or more. A leakage current of the high dielectric film is 1 A/cm2 or less, and an insulation level is 1 MV/cm or more. Rms surface roughness of the high dielectric film is 20 nm or less.
    Type: Application
    Filed: June 11, 2021
    Publication date: July 13, 2023
    Applicant: The Industry & Academic Cooperation in Chungnam National University (IAC)
    Inventors: Eui-Tae KIM, Dong-Ok KIM
  • Patent number: 11695111
    Abstract: A sulfur-carbon composite including porous carbon material, and sulfur, wherein at least a portion of an inside and a surface of the porous carbon material coated with the sulfur, the sulfur-carbon composite has a pore volume of 0.180 cm3/g to 0.300 cm3/g, and the sulfur-carbon composite has an average pore size of 40.0 nm to 70.0 nm, and a method of manufacturing the same. Also, a method of manufacturing a sulfur-carbon composite, which includes (a) mixing a porous carbon material with sulfur particles, wherein the sulfur particles have a particle size of 1 nm to 1 ?m using a Henschel mixer; and (b) drying the resulting mixture of (a).
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: July 4, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Eui Tae Kim, Kwonnam Sohn, Doo Kyung Yang
  • Publication number: 20230197009
    Abstract: An organic light emitting diode display device includes: a substrate having a plurality of subpixels; a driving transistor in each of the plurality of subpixels on the substrate; a light emitting diode in each of the plurality of subpixels on the driving transistor; and a low level line between the driving transistor and the light emitting diode in each of the plurality of subpixels.
    Type: Application
    Filed: October 6, 2022
    Publication date: June 22, 2023
    Inventors: Eui-Tae Kim, Jeong-Hwan Lee
  • Publication number: 20230187701
    Abstract: The present disclosure relates to an electrolyte for a lithium-sulfur battery including a non-aqueous organic solvent including specific three types of compounds, and a lithium-sulfur battery including the same.
    Type: Application
    Filed: November 15, 2021
    Publication date: June 15, 2023
    Inventors: Jaegil LEE, Suenghoon HAN, Eui Tae KIM, Seonghyo PARK
  • Patent number: 11658293
    Abstract: A sulfur-carbon composite including a porous carbon material; and sulfur coated on at least a portion of an inside and a surface of the porous carbon material, wherein a pore volume of the sulfur-carbon composite is 0.04 to 0.400 cm3/g and a specific surface area of the sulfur-carbon composite is 4.0 to 30 m2/g, and a method for preparing the same.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: May 23, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Eui Tae Kim, Suenghoon Han, Kwonnam Sohn, Doo Kyung Yang
  • Publication number: 20220393242
    Abstract: An electrolyte solution for a lithium secondary battery, including a first solvent comprising a heterocyclic compound haying at least one double bond, and any one of an oxygen atom and a sulfur atom; a second solvent including at least one of an ether-containing compound, an ester-containing compound, an amide-containing compound, and a carbonate-containing compound; a lithium salt; lanthanum nitrate; and an additive including lithium nitrate.
    Type: Application
    Filed: March 31, 2021
    Publication date: December 8, 2022
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Suenghoon HAN, Eui Tae KIM, Jaegil LEE, Kyungsik HONG, Seonghyo PARK
  • Publication number: 20220384788
    Abstract: A positive electrode active material having a core/shell structure, which includes a sulfur-carbon composite containing thermally expanded-reduced graphene oxide, a carbon material as a core, and carbon nanotubes as a shell. A method for preparing a positive electrode active material having a core/shell structure for a lithium secondary battery, including the steps of thermally expanding graphene oxide by heat treatment at a temperature in a range of 300° C. to 500° C. to prepare a thermally-expanded graphene oxide. Then, reducing the thermally-expanded graphene oxide by heat treatment at a temperature in a range of 700° C. to 1200° C. to prepare a thermally expanded-reduced graphene oxide. Next, mixing the thermally expanded-reduced graphene oxide and sulfur to prepare a sulfur-carbon composite. Last, mixing the sulfur-carbon composite and carbon nanotubes to form carbon nanotubes on a surface of the sulfur-carbon composite.
    Type: Application
    Filed: January 12, 2021
    Publication date: December 1, 2022
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Seungbo YANG, Eui Tae KIM, Kwonnam SOHN
  • Publication number: 20210288327
    Abstract: A positive electrode active material for a lithium secondary battery, including a sulfur-carbon composite and a coating layer located on a surface of the sulfur-carbon composite and including a carbon nanostructure and iron oxyhydroxynitrate.
    Type: Application
    Filed: February 5, 2020
    Publication date: September 16, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Suenghoon HAN, Eui Tae KIM
  • Publication number: 20200274154
    Abstract: A sulfur-carbon composite including a porous carbon material; and sulfur coated on at least a portion of an inside and a surface of the porous carbon material, wherein a pore volume of the sulfur-carbon composite is 0.04 to 0.400 cm3/g and a specific surface area of the sulfur-carbon composite is 4.0 to 30 m2/g, and a method for preparing the same.
    Type: Application
    Filed: November 16, 2018
    Publication date: August 27, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Eui Tae KIM, Suenghoon HAN, Kwonnam SOHN, Doo Kyung YANG
  • Publication number: 20200220169
    Abstract: A sulfur-carbon composite including porous carbon material, and sulfur, wherein at least a portion of an inside and a surface of the porous carbon material coated with the sulfur, the sulfur-carbon composite has a pore volume of 0.180 cm3/g to 0.300 cm3/g, and the sulfur-carbon composite has an average pore size of 40.0 nm to 70.0 nm, and a method of manufacturing the same. Also, a method of manufacturing a sulfur-carbon composite, which includes (a) mixing a porous carbon material with sulfur particles, wherein the sulfur particles have a particle size of 1 nm to 1 ?m using a Henschel mixer; and (b) drying the resulting mixture of (a).
    Type: Application
    Filed: October 24, 2018
    Publication date: July 9, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Eui Tae KIM, Kwonnam SOHN, Doo Kyung YANG
  • Patent number: 10566576
    Abstract: This disclosure provides a display panel including a first substrate with pixel areas and emission areas defined by a plurality of gate lines and a plurality of data lines; and a second substrate on which partitions are formed to correspond with the emission areas. The present disclosure provides a method for improving luminance efficiency of a display device having a mirror or transmittance function.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: February 18, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Eui-Tae Kim, Ki-Seob Shin
  • Patent number: 10312312
    Abstract: Provided is a display device. A poly-Si layer is disposed on a substrate. A first metal layer is disposed on the poly-Si layer, and a metal oxide layer is disposed on the first metal layer. A second metal layer is disposed on the metal oxide layer. The first metal layer is overlapped with the second metal layer. The first metal layer and the second metal layer may be gate lines connected to different TFTs.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: June 4, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Eui Tae Kim, Bu Yeol Lee
  • Patent number: 9865830
    Abstract: Provided are an organic thin film transistor, a method for manufacturing the same, and a method for recovering insulation thereof. Specifically, the organic thin film transistor includes a substrate, a gate electrode, a semiconductor pattern, a source electrode, a drain electrode and a gate insulation layer. The gate electrode is disposed on the substrate. The semiconductor pattern is electrically insulated with the gate electrode on the substrate. The source electrode and the drain electrode are each electrically connected to the semiconductor pattern on the substrate, and are separated from each other. The gate insulation layer is disposed between the semiconductor pattern and the gate electrode. The gate insulation layer is a sulfur copolymer thin film.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: January 9, 2018
    Assignee: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Myung-Han Yoon, Kookheon Char, Eui tae Kim, Jae-Hyuk Lee
  • Publication number: 20170329189
    Abstract: Provided is a display device. A poly-Si layer is disposed on a substrate. A first metal layer is disposed on the poly-Si layer, and a metal oxide layer is disposed on the first metal layer. A second metal layer is disposed on the metal oxide layer. The first metal layer is overlapped with the second metal layer. The first metal layer and the second metal layer may be gate lines connected to different TFTs. Thus, in the display device, a plurality of gate lines may be disposed so as to be overlapped with each Oxide other. Therefore, an area occupied by a circuit part in the display device can be reduced. Accordingly, it is possible to manufacture a display device with higher resolution, a transparent display device with improved transmittance, and a display device with a reduced size of a non-display area.
    Type: Application
    Filed: December 31, 2015
    Publication date: November 16, 2017
    Applicant: LG Display Co., Ltd.
    Inventors: Eui Tae KIM, Bu Yeol LEE
  • Publication number: 20170179437
    Abstract: This disclosure provides a display panel including a first substrate with pixel areas and emission areas defined by a plurality of gate lines and a plurality of data lines; and a second substrate on which partitions are formed to correspond with the emission areas. The present disclosure provides a method for improving luminance efficiency of a display device having a mirror or transmittance function.
    Type: Application
    Filed: October 21, 2016
    Publication date: June 22, 2017
    Inventors: Eui-Tae KIM, Ki-Seob SHIN
  • Patent number: 9627462
    Abstract: Disclosed herein is an OLED (Organic Light Emitting Display) device. A switching thin-film transistor configured to be an oxide semiconductor thin-film transistor is disposed in a first pixel. A second pixel is adjacent to the first pixel in the direction in which data lines are extended. A switching thin-film transistor configured to be an LTPS (Low Temperature Poly-Silicon) thin-film transistor is disposed in the second pixel. The switching thin-film transistor of the first pixel and the switching thin-film transistor of the second pixel are connected to the same gate line. A pixel and another pixel adjacent to the pixel connected to a gate line in common, so that it is possible to provide an OLED device with high aperture ratio and high resolution.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: April 18, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: Hoi Yong Kwon, Joon Suk Lee, Eui Tae Kim, Sung Hee Park, Ki Seob Shin