Patents by Inventor Kyung-Han An

Kyung-Han An 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: 20230335747
    Abstract: A conductive material pre-dispersed slurry for a secondary battery electrode includes: a conductive material; a dispersant for dispersing the conductive material; and a solvent mixed with the conductive material and the dispersant. The dispersant includes a cellulose-based compound and a vinyl-based or acrylic compound, and the cellulose-based compound and the vinyl-based or acrylic compound in the dispersant have a weight ratio of about 25:1 to 1:25.
    Type: Application
    Filed: June 21, 2023
    Publication date: October 19, 2023
    Inventors: Hyeong Cheol KIM, Chul HUH, Hwi Chan YANG, Joo Cheol LEE, Ju Kyung HAN, Woo Hyun AN
  • Patent number: 11787711
    Abstract: Disclosed are a deionization electrode having ion adsorption layers and ion selective membranes formed at opposite ends thereof, an electrode module configured such that deionization electrodes are stacked, and a deionization unit having electrode modules received therein to separate ions from water. The deionization electrode includes a current collector configured to have a circular flat structure, the current collector having a first hole formed therein, a first porous adsorption layer located on one surface of the current collector, the first adsorption layer being configured to have a flat structure, a second porous adsorption layer located on the other surface of the current collector, the second adsorption layer being configured to have a flat structure, a first ion selective membrane located on the surface of the first adsorption layer, and a second ion selective membrane located on the surface of the second adsorption layer.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: October 17, 2023
    Assignee: SIONTECH CO., LTD.
    Inventors: Kyung Seok Kang, Kyung Han Lee, Nam Soo Park, Hyun Woo Yoo, Bo Hyung Ryoo
  • Publication number: 20230327286
    Abstract: A separator for an electrochemical device, where the separator includes a semi-crystalline and/or amorphous polymer, such as polyvinyl acetate and polyethylene-co-vinyl acetate, as a binder polymer of an inorganic coating layer. The surfaces of the inorganic particles are at least partially coated with a coupling agent. Therefore, it is possible to prevent the inorganic particles from being detached from the inorganic coating layer. In addition, phase separation is accelerated under a humidified condition in manufacturing the separator so that the surface of the separator may be provided with an adhesive portion in which a large amount of binder polymer is distributed. As a result, the separator may have improved binding force to an electrode.
    Type: Application
    Filed: September 15, 2021
    Publication date: October 12, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Da-Kyung HAN, So-Mi JEONG, Min-Ji KIM
  • Publication number: 20230299420
    Abstract: A separator for a secondary battery having improved force of binding to an electrode, and more particularly a separator for a secondary battery including a porous polymer separator substrate and an inorganic layer on at least one surface of the separator substrate. The inorganic layer includes an inorganic material particles and a binder. The binder is a hollow type binder.
    Type: Application
    Filed: June 7, 2022
    Publication date: September 21, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Yeo Ju YOON, So Mi JEONG, Da Kyung HAN, Min Ji KIM
  • Publication number: 20230282939
    Abstract: A separator for an electrochemical device, including a porous polymer substrate and an inorganic coating layer on at least one surface of the porous polymer substrate. The inorganic coating layer includes inorganic particles and a binder resin. The binder resin includes a PVAc-containing first binder resin and a PVDF-containing second binder resin.
    Type: Application
    Filed: August 30, 2021
    Publication date: September 7, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Min-Ji KIM, So-Mi JEONG, Da-Kyung HAN
  • Publication number: 20230261326
    Abstract: A separator including a porous polymer substrate having a first surface and a second surface opposite the first surface; a porous coating layer on at least one surface of the porous polymer substrate; and a conductive coating layer on a surface of the porous coating layer opposite the surface of the porous coating layer facing the first surface of the porous polymer substrate. The porous coating layer includes a plurality of inorganic particles and a first binder polymer totally or partially on the surfaces of the inorganic particles to interconnect and fix the inorganic particles. The conductive coating layer includes single-walled carbon nanotubes (SWCNTs) and a second binder polymer.
    Type: Application
    Filed: October 19, 2021
    Publication date: August 17, 2023
    Applicants: LG ENERGY SOLUTION, LTD., ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Da-Kyung HAN, Sang-Young LEE, Ji-Young SEO, Yong-Hyeok LEE, Je-An LEE, So-Mi JEONG
  • Publication number: 20230216145
    Abstract: A separator for a lithium secondary battery and a method for manufacturing the same. The separator for a lithium secondary battery includes: a porous polymer substrate; and a porous coating layer on at least one surface of the porous polymer substrate. The porous coating layer includes inorganic particles, a fluorine-containing binder polymer (A), and an ethylenic copolymer (B) having an ethylene monomer-derived repeating unit (a) and a vinyl acetate monomer-derived repeating unit (b). It is possible to provide a separator having improved adhesion peel strength between the porous coating layer and the porous polymer substrate and improved adhesion Lami strength to an electrode at the same time and a method for manufacturing the same by using an ethylenic copolymer having predetermined characteristics.
    Type: Application
    Filed: June 30, 2021
    Publication date: July 6, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Da-Kyung HAN, So-Mi JEONG, Kyung-An KWON, Min-Ji KIM
  • Publication number: 20230178852
    Abstract: A method for manufacturing a separator for a lithium secondary battery. Particularly, the method for manufacturing a separator for a lithium secondary battery includes the steps of: preparing a slurry for forming a porous coating layer. The porous coating layer includes inorganic particles dispersed in an asymmetric linear ketone solvent and a binder polymer, including a first binder polymer and a second binder polymer, dissolved therein; and applying the slurry for forming a porous coating layer onto a porous polymer substrate having a plurality of pores, followed by drying. The slurry for forming a porous coating layer may be prepared by dissolving a first binder polymer and a second binder polymer having predetermined properties in an asymmetric ketone solvent, and a separator may be obtained by using the slurry for forming a porous coating layer.
    Type: Application
    Filed: June 18, 2021
    Publication date: June 8, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: So-Mi JEONG, Da-Kyung HAN, Min-Ji KIM
  • Publication number: 20230167519
    Abstract: The present invention provides a dent-resistant cold-rolled steel sheet having excellent dent-resistance properties. According to one embodiment of the present invention, the dent-resistant cold-rolled steel sheet includes, by weight, carbon (C): 0.005% to 0.03%, manganese (Mn): 1.0% to 2.5%, aluminum (Al): 0.2% to 0.8%, sum of chromium (Cr) and molybdenum (Mo): 0.3% to 1.5%, sum of niobium (Nb) and titanium (Ti): 0.001% to 0.01%, phosphorus (P): greater than 0% to 0.02%, sulfur (S): greater than 0% to 0.01%, and the balance of iron (Fe) and other unavoidable impurities, wherein a yield strength (YP) of 195 MPa or greater, a tensile strength (ST) of 340 MPa or greater, elongation (El) of 33% or greater, and a bake hardening (BH) amount of 40 MPa or greater are satisfied.
    Type: Application
    Filed: December 21, 2021
    Publication date: June 1, 2023
    Inventors: Byoung Jin KIM, Chun ku Kang, YoungJu Park, Ha Young Yu, Min Ho Jang, Seong Kyung Han, Sung Yul Huh
  • Publication number: 20230159036
    Abstract: An apparatus and a method for controlling a vehicle includes a driveshaft that transmits a drive torque generated by a drive motor to a wheel, a sensor that obtains a speed of the vehicle, and a controller that monitors the drive torque to determine a change amount of the drive torque, determines a change in a torsion angle of the driveshaft based on the change amount of the drive torque, and determines whether wheel slip occurs based on an amount of speed change of the drive motor according to the change in the torsion angle of the driveshaft. Accordingly, it is possible to accurately determine wheel slip according to the friction of a road surface, providing safe driving to the driver.
    Type: Application
    Filed: August 2, 2022
    Publication date: May 25, 2023
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventors: Woo Cheol CHO, Kyung Han MIN, Kyu Beom KO, Hyo Jun KWAK
  • Publication number: 20230151082
    Abstract: Provided is an anti-mesothelin chimeric antigen receptor specifically binding to mesothelin. The anti-mesothelin chimeric antigen receptor according to an aspect exhibits an ability to specifically bind to mesothelin, and thus may be usefully applied to preventing or treating mesothelin-overexpressing cancers.
    Type: Application
    Filed: April 30, 2021
    Publication date: May 18, 2023
    Inventors: Jae Hyung AN, Na Kyung HAN
  • Patent number: 11652234
    Abstract: A separator for an electrochemical device, including: a porous polymer substrate; and a porous coating layer formed on at least one surface of the porous polymer substrate and containing a plurality of microcapsules and a binder polymer positioned on the whole or a part of the surface of the microcapsules to connect and fix the microcapsules with one another, wherein the microcapsules include metal hydroxide particles, and capsule coating layer surrounding each surface of the metal hydroxide particles. An electrochemical device including the separator, and the microcapsules are also provided. The microcapsules and separator show excellent flame resistance and can reduce degradation of battery performance caused by water adsorbability of the plurality of a metal hydroxide particle.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: May 16, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Seung-Hyun Lee, Da-Kyung Han, Kwan-Woo Nam, Je-An Lee
  • Publication number: 20230132597
    Abstract: The present invention provides a hot stamping component which includes a base steel sheet including carbon (C) in an amount of 0.28 wt % to 0.50 wt %, silicon (Si) in an amount of 0.15 wt % to 0.7 wt %, manganese (Mn) in an amount of 0.5 wt % to 2.0 wt %, phosphorus (P) in an amount of 0.03 wt % or less, sulfur (S) in an amount of 0.01 wt % or less, chromium (Cr) in an amount of 0.1 wt % to 0.6 wt %, boron (B) in an amount of 0.001 wt % to 0.005 wt %, at least one of titanium (Ti), niobium (Nb), and molybdenum (Mo), and a balance of iron (Fe) and other unavoidable impurities, wherein a content of titanium (Ti), niobium (Nb) and molybdenum (Mo) satisfies the following equation. 0.015?0.33(Ti+Nb+0.33(Mo))?0.
    Type: Application
    Filed: December 12, 2022
    Publication date: May 4, 2023
    Inventors: Byung Gil Yoo, Seok Hyeon Kang, Dong Yong Kim, Je Woo Soo Kim, Seong Kyung Han
  • Publication number: 20230116372
    Abstract: A high-adhesion separator for batteries, the high-adhesion separator including a porous substrate and a coating layer formed on at least one surface of the porous substrate, the coating layer including an inorganic material, wherein the coating layer includes a copolymer of a humidification phase separable polymer and vinyl acetate, and a secondary battery including the same.
    Type: Application
    Filed: August 6, 2021
    Publication date: April 13, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Min Ji KIM, So Mi JEONG, Da Kyung HAN
  • Publication number: 20230111843
    Abstract: A steel sheet for hot stamping includes an amount of 0.17 wt % to 0.25 wt % of carbon (C), an amount of 0.3 wt % to 1.0 wt % of silicon, an amount of 0.6 wt % to 1.0 wt % of manganese (Mn), an amount of 0.02 wt % or less of phosphorus (P), an amount of 0.01 wt % or less of sulfur (S), an amount of 0.1 wt % to 1.0 wt % of aluminum (Al), an amount of 0.001 wt % to 0.005 wt % of boron (B), an amount of 0.01 wt % to 0.1 wt % of titanium (Ti), an amount of 0.02 wt % to 0.06 wt % of niobium (Nb), an amount of 0.3 wt % to 1.0 wt % of a sum of at least one of chromium (Cr), nickel (Ni), and molybdenum (Mo), and the balance of iron (Fe) and other unavoidable impurities; and also a microstructure including ferrite and pearlite.
    Type: Application
    Filed: December 12, 2022
    Publication date: April 13, 2023
    Inventors: Byung Gil Yoo, Je Woo Soo Kim, Hyeong Hyeop Do, Seong Kyung Han
  • Publication number: 20230111519
    Abstract: An embodiment of the present invention provides a steel sheet for hot press, including carbon (C) in an amount of 0.03 to 0.15 wt%, silicon (Si) in an amount of 0.1 to 1.5 wt%, manganese (Mn) in an amount of 1.0 to 2.0 wt%, phosphorus (P) in an amount of 0.1 wt% or less, sulfur (S) in an amount of 0.01 wt% or less, boron (B) in an amount of 0.0005 to 0.005 wt%, a sum of one or more of titanium (Ti), niobium (Nb), and vanadium (V) in an amount of 0.01 to 1.0 wt%, chromium (Cr) in an amount of 0.01 to 0.5 wt%, the balance of iron (Fe), and other unavoidable impurities. The steel sheet for hot press includes MnS-based inclusions, and an area fraction of the MnS-based inclusions is 5 % or less.
    Type: Application
    Filed: December 12, 2022
    Publication date: April 13, 2023
    Inventors: Je Woo Soo Kim, Byung Gil Yoo, Seong Kyung Han, Dong Yong Kim
  • Publication number: 20230107399
    Abstract: Provided is a hot-stamped part including a base steel sheet, the base steel sheet including an amount of about 0.19 to about 0.25 wt % of carbon (C), an amount of about 0.1 to about 0.6 wt % of silicon (Si), an amount of about 0.8 to about 1.6 wt % of manganese (Mn), an amount of about 0.03 wt % or less of phosphorus (P), an amount of about 0.015 wt % or less of sulfur (S), an amount of about 0.1 to about 0.6 wt % of chromium (Cr), an amount of about 0.001 to about 0.005 wt % of boron (B), an amount of about 0.1 wt % or less of an additive, remaining iron (Fe), and other unavoidable impurities. In an indentation strain rate with respect to an indentation depth of about 200 nm to about 600 nm is observed in a nano indentation test, a number of indentation dynamic strain aging (DSA) is about 26 to about 40.
    Type: Application
    Filed: December 8, 2022
    Publication date: April 6, 2023
    Inventors: Byung Gil Yoo, Je Woo Soo Kim, Hyeong Hyeop Do, Seong Kyung Han
  • Publication number: 20230098650
    Abstract: A separator for a lithium secondary battery, a method for manufacturing the same and a lithium secondary battery comprising the same, where the separator includes a porous polymer substrate having a plurality of pores and a polymer coating layer on at least one surface of the porous polymer substrate. The polymer coating layer comprises a thermosetting phenol-containing resin having at least one hydroxyl group and at least one aromatic ring. A coating amount of the thermosetting phenol-containing resin is 0.01 g/m2 to 3 g/m2 of the porous polymer substrate based on one polymer coating layer.
    Type: Application
    Filed: March 31, 2021
    Publication date: March 30, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: So-Mi JEONG, Min-Ji KIM, Da-Kyung HAN
  • Publication number: 20230090568
    Abstract: A separator for a lithium secondary battery, a method for manufacturing the same, and a lithium secondary battery including the separator, where the separator includes a porous polymer substrate having a plurality of pores, and a porous coating layer on at least one surface of the porous polymer substrate. The porous coating layer includes a plurality of inorganic particles and a binder polymer. The binder polymer includes a thermosetting phenolic resin having at least one hydroxyl group and at least one aromatic group. When the separator is exposed to high temperature, due to ignition or the like, the thermosetting phenolic resin in the porous coating layer is thermally cured to form a network structure by virtue of the structural characteristics of the separator. As a result, the separator has improved heat resistance as compared to the conventional separators and shows high adhesion to an electrode.
    Type: Application
    Filed: March 31, 2021
    Publication date: March 23, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: So-Mi JEONG, Min-Ji KIM, Da-Kyung HAN
  • Patent number: 11594782
    Abstract: A flame retardant separator for secondary batteries, and more particularly, a flame retardant separator for secondary batteries comprising or coated with a metal hydroxide having a low Gibbs free energy among polymorphs of a metal hydroxide used as an inorganic flame retardant.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: February 28, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Da Kyung Han, Kwan Woo Nam, Seung Hyun Lee, Je An Lee