Patents by Inventor Min Wook Lee

Min Wook Lee 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: 20250210658
    Abstract: Provided is a lithium secondary battery including a negative electrode including a negative electrode composite layer including a negative electrode active material including a first negative electrode active material and a second negative electrode active material, a negative electrode conductive material, and a negative electrode binder; a positive electrode including a positive electrode composite layer including a positive electrode active material, a positive electrode conductive material, and a positive electrode binder; and an electrolyte, and CFC defined by Equation 1 is 0.38 to 1.962: CFC=100×Wc?{(D50,a1×D50,a2×L×RN/P×1010)/MWc}??Equation 1: wherein in Equation 1, all the variables are described herein.
    Type: Application
    Filed: December 12, 2024
    Publication date: June 26, 2025
    Applicant: LG Energy Solution, Ltd.
    Inventors: Jin Young Park, Seok Jin Oh, Hee Chang Youn, Joo Hwan Sung, Min Wook Lee, Jong Seon Kim, Ji Min Park
  • Patent number: 12244012
    Abstract: The present disclosure relates to a lithium secondary battery with improved safety during thermal runaway. The lithium secondary battery includes a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, and an electrolyte, and has a nominal voltage of 3.68 V or greater, and VP represented by Equation (1) below is 4 mbar·Ah?1·sec?1 or less: Equation (1): VP=?P/(tmax×C).
    Type: Grant
    Filed: June 7, 2024
    Date of Patent: March 4, 2025
    Assignee: LG Energy Solution, Ltd.
    Inventors: Min Wook Lee, Joo Hwan Sung, Hee Chang Youn, Ju Young Yun, Seok Jin Oh, Ji Min Park
  • Publication number: 20250055019
    Abstract: The present disclosure relates to a lithium secondary battery with improved safety during thermal runaway. The lithium secondary battery includes a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, and an electrolyte, and has a nominal voltage of 3.68 V or greater, and VT represented by Equation (1) below measured after manufacturing a test module by stacking four of the lithium secondary battery fully charged by being charged to 4.35 V is 4 Ah/sec or less: Equation (1): VT=Ctotal/t.
    Type: Application
    Filed: October 31, 2024
    Publication date: February 13, 2025
    Applicant: LG Energy Solution, Ltd.
    Inventors: Min Wook Lee, Ju Young YUN, Seok Jin OH, Joo Hwan SUNG, Hee Chang Youn, Ji Min PARK, Hye In KO, Ran Eun LEE, Jin Young PARK
  • Publication number: 20250054975
    Abstract: The present disclosure relates to a lithium secondary battery with improved safety during thermal runaway. The lithium secondary battery includes a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, and an electrolyte, and has a nominal voltage of 3.68 V or greater, and VP represented by Equation (1) below is 4 mbar·Ah?1·sec?1 or less: Equation (1): VP=?P/(tmax×C).
    Type: Application
    Filed: October 31, 2024
    Publication date: February 13, 2025
    Applicant: LG Energy Solution, Ltd.
    Inventors: Min Wook Lee, Joo Hwan Sung, Hee Chang Youn, Ju Young Yun, Seok Jin Oh, Ji Min Park
  • Patent number: 12224394
    Abstract: The present disclosure relates to a lithium secondary battery with improved safety during thermal runaway. The lithium secondary battery includes a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, and an electrolyte, and has a nominal voltage of 3.68 V or greater, and VT represented by Equation (1) below measured after manufacturing a test module by stacking four of the lithium secondary battery fully charged by being charged to 4.35 V is 4 Ah/sec or less: Equation (1): VT=Ctotal/t.
    Type: Grant
    Filed: June 7, 2024
    Date of Patent: February 11, 2025
    Assignee: LG Energy Solution, Ltd.
    Inventors: Min Wook Lee, Ju Young Yun, Seok Jin Oh, Joo Hwan Sung, Hee Chang Youn, Ji Min Park, Hye In Ko, Ran Eun Lee, Jin Young Park
  • Publication number: 20240429382
    Abstract: The present disclosure relates to a positive electrode including a positive electrode active material, a positive electrode conductive material, and a positive electrode binder, wherein the positive electrode active material includes a lithium nickel-based oxide containing 70 mol % or less of nickel among all metals excluding lithium, wherein the lithium nickel-based oxide includes single particle-type particles, and the conductive material includes a linear conductive material and a dotted conductive material, and FCR defined by Equation (1) below satisfies 12 to 20: FCR=dc1×dc2×D50.a??[Equation (1)] wherein, dc1 is the true density (unit: g/cm3) of the linear conductive material above, dc2 is the true density (unit: g/cm3) of the dotted conductive material above, and D50.
    Type: Application
    Filed: June 21, 2024
    Publication date: December 26, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Seok Jin Oh, Hee Chang Youn, Joo Hwan Sung, Jin Young Park, Min Wook Lee, Jong Seon Kim
  • Publication number: 20240417281
    Abstract: A method for treating wastewater of a neopentyl glycol production process, the method including: recovering wastewater including a catalyst from one or more processes of an aldol purification process, a_neopentyl glycol purification process, and an extractant recovery process, and supplying the wastewater to a volatile organic compounds to a separation column; obtaining, from the separation column for volatile organic compound separation column; obtaining an upper discharge stream including the catalyst and a lower discharge stream including wastewater from which the catalyst has been removed in the volatile organic compound separation column; and supplying the lower discharge stream to a wastewater treatment system to treat the wastewater.
    Type: Application
    Filed: September 1, 2023
    Publication date: December 19, 2024
    Inventors: Sung Kyun KIM, Sung Kyu LEE, Min Wook LEE
  • Publication number: 20240413380
    Abstract: The present disclosure relates to a lithium secondary battery with improved safety during thermal runaway. The lithium secondary battery includes a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, and an electrolyte, and has a nominal voltage of 3.68 V or greater, and VT represented by Equation (1) below measured after manufacturing a test module by stacking four of the lithium secondary battery fully charged by being charged to 4.35 V is 4 Ah/sec or less: Equation (1): VT=Ctotal/t.
    Type: Application
    Filed: June 7, 2024
    Publication date: December 12, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Min Wook Lee, Ju Young Yun, Seok Jin Oh, Joo Hwan Sung, Hee Chang Youn, Ji Min Park, Jin Young Park, Hye In Ko, Ran Eun Lee
  • Publication number: 20240413325
    Abstract: The present disclosure relates to a lithium secondary battery with improved safety during thermal runaway. The lithium secondary battery includes a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, and an electrolyte, and has a nominal voltage of 3.68 V or greater, and VP represented by Equation (1) below is 4 mbar·Ah?1·sec?1 or less: Equation (1): VP=?P/(tmax×C).
    Type: Application
    Filed: June 7, 2024
    Publication date: December 12, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Min Wook LEE, Joo Hwan SUNG, Hee Chang YOUN, Ju Young YUN, Seok Jin OH, Ji Min PARK
  • Publication number: 20240294710
    Abstract: The present disclosure relates to a polyimide-based resin film in which a refractive index difference (?n) obtained by Equation 1 is 0.0068 or less, and a yellow index at a thickness of 10 ?m is 5.5 or less, and a substrate for display device, and an optical device using the same.
    Type: Application
    Filed: May 17, 2022
    Publication date: September 5, 2024
    Applicant: LG CHEM, LTD.
    Inventors: Mi Eun KANG, Ye Ji HONG, Chan Hyo PARK, Hangah PARK, Min Wook LEE
  • Publication number: 20240092974
    Abstract: The present disclosure relates to a polyimide-based resin film comprising a polyimide-based resin containing a polyimide repeating unit represented by Chemical Formula 1 and a polyimide repeating unit represented by Chemical Formula 2, a substrate for display device, and an optical device using the same.
    Type: Application
    Filed: September 14, 2022
    Publication date: March 21, 2024
    Applicant: LG CHEM, LTD.
    Inventors: Mi Eun KANG, Chan Hyo PARK, Jinyoung PARK, Chae Won PARK, Min Wook LEE
  • Publication number: 20240076828
    Abstract: Disclosed herein a method of manufacturing a carbon fiber-reinforced composite including a thermal barrier coating layer, the method includes: preparing a thermal barrier coating layer; preparing a substrate including a carbon fiber fabric; and attaching the thermal barrier coating layer on an upper portion of the substrate and molding a composite with a resin transfer molding.
    Type: Application
    Filed: September 6, 2023
    Publication date: March 7, 2024
    Applicants: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, UTAH STATE UNIVERSITY
    Inventors: Min Wook LEE, Hee Jin KIM, Jungwon KIM, Juhyeong LEE
  • Patent number: 11673369
    Abstract: The present disclosure relates to a carbon-fiber-reinforced composite including a plurality of stacked thermoplastic layers, and a plurality of carbon fiber reinforcing layers interposed between the thermoplastic layers, wherein the carbon-fiber-reinforced composite further comprises a stitching part stitched with an upper yarn and a lower yarn from outside of the thermoplastic layers at a folding location of the carbon-fiber-reinforced composite.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: June 13, 2023
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Min Wook Lee, Yongtak Kim, Ki Hyun Ryu, Wonjin Na, Jaesang Yu, Minkook Kim, Cheol-Min Yang
  • Publication number: 20230133697
    Abstract: The present disclosure relates to a polyimide-based polymer film comprising a polyimide-based polymer containing a polyimide repeating unit synthesized by the reaction of an acid anhydride compound having a specific structure and a diamine compound, wherein a glass transition temperature is 400° C. or more, and a thickness direction retardation value at a thickness of 10 ?m is 150 nm or less, and a substrate for a display device and an optical device using the same.
    Type: Application
    Filed: September 8, 2021
    Publication date: May 4, 2023
    Applicant: LG CHEM, LTD.
    Inventors: Min Wook LEE, Kyunghwan KIM, Chan Hyo PARK
  • Publication number: 20230132166
    Abstract: The present disclosure relates to a polyimide-based polymer film comprising a polyimide-based polymer containing a polyimide repeating unit synthesized by the reaction of an acid anhydride compound having a specific structure and a diamine compound, wherein an average transmittance at a wavelength of 380 nm or more and 780 nm or less is 60% or more, and a thickness direction retardation value at a thickness of 10 pm is 150 nm or less, and a substrate for a display device, a circuit board, an optical device, and an electronic device using the same.
    Type: Application
    Filed: September 6, 2021
    Publication date: April 27, 2023
    Applicant: LG CHEM, LTD.
    Inventors: Min Wook LEE, Chan Hyo PARK
  • Publication number: 20210379867
    Abstract: The present disclosure relates to a carbon-fiber-reinforced composite including a plurality of stacked thermoplastic layers, and a plurality of carbon fiber reinforcing layers interposed between the thermoplastic layers, wherein the carbon-fiber-reinforced composite further comprises a stitching part stitched with an upper yarn and a lower yarn from outside of the thermoplastic layers at a folding location of the carbon-fiber-reinforced composite
    Type: Application
    Filed: March 25, 2021
    Publication date: December 9, 2021
    Inventors: Min Wook LEE, Yongtak KIM, Ki Hyun RYU, Wonjin NA, Jaesang YU, Minkook KIM, Cheol-Min YANG
  • Publication number: 20200307153
    Abstract: The present specification provides a carbon fiber reinforced composite structure comprising: a plurality of carbon fiber reinforced sheets, which are laminated; and a stitch member penetrating one or more carbon fiber reinforced sheets, in which the carbon fiber reinforced sheet includes a plurality of reinforcing carbon fibers arranged in one direction. The carbon fiber reinforced composite structure shows excellent thermal conductivity in a thickness direction.
    Type: Application
    Filed: February 27, 2020
    Publication date: October 1, 2020
    Inventors: Jaesang YU, Hyunkee HONG, Kwak Jin BAE, Hana JUNG, Hoi-Kil CHOI, Yuna OH, Dong Won LEE, Cheol-Min YANG, Min Wook LEE, Minkook KIM, Wonjin NA, Nam Ho YOU
  • Patent number: 9469920
    Abstract: The present invention relates to an electrospinning device. The electrospinning device may apply the force of a supersonic flow acting at a predetermined angle with respect to an electrostatic force on a fiber discharged from an electrospinning nozzle to cause shearing stress on the fiber, thereby providing fibers having a very small diameter and collecting fibers having a finer diameter. Also, the electrospinning device may collect finer and more uniform fibers by adjusting the relative positions of the electrospinning nozzle for discharging the fiber and a gas spray nozzle for spraying a gas.
    Type: Grant
    Filed: June 17, 2012
    Date of Patent: October 18, 2016
    Assignees: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION, NORTH CAROLINA STATE UNIVERSITY, BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
    Inventors: Min Wook Lee, Suk Goo Yoon, Alexander L Yarin, Suman Sinha-Ray, Behnam Pourdeyhimi
  • Patent number: 9401449
    Abstract: The present invention relates to an apparatus for manufacturing an inorganic thin-film solar cell, the apparatus including: a substrate stage which is mounted in a chamber and in which a solar cell substrate is disposed; and an inorganic powder supply unit including a nozzle configured to discharge an inorganic powder aerosol containing an inorganic powder onto the substrate stage in a supersonic flow so as to form a solar cell layer on the solar cell substrate, and an inorganic powder supply portion configured to supply the inorganic powder aerosol to the nozzle.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: July 26, 2016
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Jung Jae Park, Do Yeon Kim, Jong Gun Lee, Min Wook Lee, Suk Goo Yoon
  • Patent number: 9228639
    Abstract: An automated manual transmission includes an input, an output disposed in parallel with the input, a common use planetary gear device disposed on the input or the output, a shift gear device in which a plurality of external gear mates having different shift ratios are disposed on the input and the output, and a friction member disposed to transmit the rotation power transmitted to the input at the time of the braking to the output through the external gear mates.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: January 5, 2016
    Assignee: Hyundai Motor Company
    Inventors: Min Wook Lee, Jong Yun Park, Soon Ki Eo, Han Ki Hong