Patents by Inventor Je Kyun Lee

Je Kyun 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: 20240088425
    Abstract: An electrode assembly, a battery, a battery pack and a vehicle including the same are provided. In the electrode assembly, the uncoated portion of an electrode includes a segment region divided into a plurality of segments, and the segment region includes a plurality of segment groups separated by a group separation pitch along a winding direction. One end of the electrode assembly includes a plurality of segment alignments. In winding turns corresponding to the plurality of segment alignments, group separation pitches of segment groups disposed in a same winding turn are substantially identical, and separation pitches of the segment groups is greater in a winding turn of a region adjacent to the outer circumference of the electrode assembly than in a winding turn of a region adjacent to the core of the electrode assembly.
    Type: Application
    Filed: July 19, 2022
    Publication date: March 14, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Jae-Eun LEE, Jong-Sik PARK, Hak-Kyun KIM, Je-Jun LEE, Jae-Won LIM, Yu-Sung CHOE, Byoung-Gu LEE, Duk-Hyun RYU, Kwan-Hee LEE
  • Publication number: 20240072387
    Abstract: A cylindrical secondary battery, a battery pack, and a vehicle are provided. The cylindrical secondary battery includes an electrode assembly having a first electrode tab at a first end of the electrode assembly a battery can configured to accommodate the electrode assembly through an opening portion formed at one side of the battery can, a current collecting plate including three or more tab coupling portions electrically connected to the first electrode tab, and a can coupling portion extending from ends of the tab coupling portions toward the opening portion of the battery can and having a continuous outer peripheral surface electrically connected to an inner surface of the battery can, and a top cap configured to cover the opening portion of the battery can.
    Type: Application
    Filed: March 4, 2022
    Publication date: February 29, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Kyeong Hoon PARK, Jimin JUNG, Jae Won LIM, Je Jun LEE, Hak Kyun KIM
  • Patent number: 11891306
    Abstract: Provided is a method for producing a silica aerogel blanket, the method comprising recovering and reusing a supercritical waste liquid generated after a supercritical drying process. Without putting in additional equipment investments or energy, supercritical waste liquid recovered after a supercritical drying process can be reused by lowering the content of ammonium ions (NH4+) present therein through a simple adjustment of the conditions for the supercritical drying process. Thus, it is possible to produce a silica aerogel blanket while reducing the production costs thereof and preventing the deterioration of thermal insulation performance of the silica aerogel blanket.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: February 6, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Kyoung Shil Oh, Je Kyun Lee
  • Publication number: 20230365416
    Abstract: The present invention relates to a method for recycling supercritical waste liquid generated during a process of producing a silica aerogel blanket, and a method for producing a silica aerogel blanket reusing supercritical waste liquid recycled thereby. More particularly, the present invention provides a method for recycling supercritical waste liquid and a method for producing a silica aerogel blanket capable of reducing the production costs and preventing the deterioration in thermal insulation performance of a silica aerogel blanket by adding a metal salt to the supercritical waste liquid by the recycling method.
    Type: Application
    Filed: July 24, 2023
    Publication date: November 16, 2023
    Inventors: Tae Gyeong KANG, Je Kyun LEE
  • Patent number: 11760646
    Abstract: Provided is a silica aerogel blanket capable of preventing deterioration of heat insulating performance while reducing dust generation, and method for manufacturing the same. The method manufactures a low-dust silica aerogel blanket by separately adding a silica sol to prevent an opacifying agent from being exposed to the surface of the silica aerogel blanket.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: September 19, 2023
    Assignee: LG Chem, Ltd.
    Inventors: Myung Eun Oh, Kyu Reon Lee, Je Kyun Lee
  • Patent number: 11760645
    Abstract: Provided is a method for recycling supercritical waste liquid generated during a process of producing a silica aerogel blanket, and a method for producing a silica aerogel blanket reusing supercritical waste liquid recycled thereby. The method for recycling supercritical waste liquid and the method for producing a silica aerogel blanket reduce the production costs and prevent the deterioration in thermal insulation performance of a silica aerogel blanket by adding a metal salt to the supercritical waste liquid by the recycling method.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: September 19, 2023
    Assignee: LG Chem, Ltd.
    Inventors: Tae Gyeong Kang, Je Kyun Lee
  • Patent number: 11708275
    Abstract: The present invention relates to an apparatus of manufacturing an aerogel sheet. The apparatus of manufacturing the aerogel sheet includes: a fixing vessel into which a blanket is inserted; and an impregnation device putting a silica sol precursor into the blanket inserted into the fixing vessel to impregnate and gelate the silica sol precursor, wherein the impregnation device includes a rotation roller moving from one end to the other end of a top surface of the blanket while rotating to put the stored silica sol precursor into the blanket and thereby to impregnate and gelate the silica sol precursor.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: July 25, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Ye Hon Kim, Je Kyun Lee
  • Patent number: 11697596
    Abstract: An apparatus for manufacturing an aerogel sheet including: a supply roller around which a blanket is wound to form a roll; a conveyor belt transferring the blanket wound around the supply roller from one side to the other side thereof; a silica sol supply member injecting the silica sol to a surface of the blanket disposed on the conveyor belt to impregnate the blanket with silica sol; a catalyst supply member injecting a gelling catalyst to the surface of the blanket impregnated with silica sol to gelate the silica sol; a collection roller winding the blanket, which is transferred up to the other side by the conveyor belt, in the form of a roll; and a reaction vessel which accommodates the roll-shaped blanket collected by the collection roller and in which the accommodated blanket is aged, modified by injecting a coating solution, or dried at a high temperature.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: July 11, 2023
    Assignee: LG Chem, Ltd.
    Inventors: Ye Hon Kim, Je Kyun Lee, Kyoung Shil Oh
  • Patent number: 11666880
    Abstract: Provided are a method of preparing a metal oxide-silica composite aerogel, and a metal oxide-silica composite aerogel having an excellent weight reduction property prepared by the method. The method includes a step of adding an acid catalyst to a first water glass solution to prepare an acidic water glass solution (step 1); a step of adding a metal ion solution to the acidic water glass solution to prepare a precursor solution (step 2); and a step of adding a second water glass solution to the precursor solution and performing a gelation reaction (step 3) to yield a metal oxide-silica composite wet gel, wherein, in steps 2 and 3, bubbling of an inert gas is performed during the adding of the metal ion solution or the second water glass solution, respectively.
    Type: Grant
    Filed: September 19, 2022
    Date of Patent: June 6, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Jong Hun Kim, Je Kyun Lee
  • Publication number: 20230124388
    Abstract: The present invention relates to a method for producing a silica aerogel blanket and an apparatus for producing the same, which are capable of easily controlling the physical properties of a silica aerogel blanket by separately injecting silica sol and a gelation catalyst to control gelation time, improving aerogel pore structure to be uniform and improving thermal insulation performance by sufficiently and uniformly impregnating the silica and the gelation catalyst into a blanket, reducing the loss of silica sol and gelation catalyst by allowing the silica sol and the gelation catalyst to pass on an ascending slope before gelation to remove any excessive silica sol and gelation catalyst exceeding an appropriate impregnation amount, and providing a silica aerogel blanket having less process trouble, and less dust.
    Type: Application
    Filed: December 15, 2022
    Publication date: April 20, 2023
    Applicant: LG CHEM, LTD
    Inventors: Kyung Seok MIN, Je Kyun LEE
  • Publication number: 20230024770
    Abstract: Provided are a method of preparing a metal oxide-silica composite aerogel, and a metal oxide-silica composite aerogel having an excellent weight reduction property prepared by the method. The method includes a step of adding an acid catalyst to a first water glass solution to prepare an acidic water glass solution (step 1); a step of adding a metal ion solution to the acidic water glass solution to prepare a precursor solution (step 2); and a step of adding a second water glass solution to the precursor solution and performing a gelation reaction (step 3) to yield a metal oxide-silica composite wet gel, wherein, in steps 2 and 3, bubbling of an inert gas is performed during the adding of the metal ion solution or the second water glass solution, respectively.
    Type: Application
    Filed: September 19, 2022
    Publication date: January 26, 2023
    Inventors: Jong Hun KIM, Je Kyun LEE
  • Patent number: 11554962
    Abstract: Provided is a method for producing a silica aerogel blanket and an apparatus for producing the same, which are capable of easily controlling the physical properties of a silica aerogel blanket by separately injecting silica sol and a gelation catalyst to control gelation time, improving aerogel pore structure to be uniform and improving thermal insulation performance by sufficiently and uniformly impregnating the silica sol and the gelation catalyst into a blanket, reducing the loss of silica sol and gelation catalyst by allowing the silica sol and the gelation catalyst to pass on an ascending slope before gelation to remove any excessive silica sol and gelation catalyst exceeding an appropriate impregnation amount, and providing a silica aerogel blanket having less process trouble, and less dust.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: January 17, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Kyung Seok Min, Je Kyun Lee
  • Patent number: 11505657
    Abstract: The system for preparing silica aerogel according to the present invention comprises a raw material supply part transferring at least one raw material of de-ionized water, water glass, a surface modifier, an inorganic acid, and an organic solvent to a mixing part, the mixing part mixing the raw materials transferred from the raw material supply part to produce silica wet gel, a drying part drying the silica wet gel to produce the silica aerogel, a recovery part recovering a portion of the vaporized raw material of the raw materials used in at least one of the mixing part and the drying part, and a heat transfer part transferring heat to at least one of the mixing part and the drying part, wherein the system further comprises a pulverizing part that pulverizes the raw material from the row material supply part to the mixing part.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: November 22, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Ye Hon Kim, Dong Kwon Lee, Jong Ku Lee, Je Kyun Lee
  • Patent number: 11485892
    Abstract: Provided is a method for producing a silica aerogel blanket having high thermal insulation and high strength, wherein an acicular metal-silica composite is added to a step of preparing a silica precursor solution during the production of the silica aerogel blanket to produce a silica aerogel blanket having characteristics of high thermal insulation, high strength, high thermal resistance and low dust.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: November 1, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Tae Gyeong Kang, Je Kyun Lee, Kyoung Shil Oh, Hyun Woo Jeon
  • Patent number: 11478770
    Abstract: Provided are a method of preparing a metal oxide-silica composite aerogel, and a metal oxide-silica composite aerogel having an excellent weight reduction property prepared by the method. The method includes a step of adding an acid catalyst to a first water glass solution to prepare an acidic water glass solution (step 1); a step of adding a metal ion solution to the acidic water glass solution to prepare a precursor solution (step 2); and a step of adding a second water glass solution to the precursor solution and performing a gelation reaction (step 3) to yield a metal oxide-silica composite wet gel, wherein, in steps 2 and 3, bubbling of an inert gas is performed during the adding of the metal ion solution or the second water glass solution, respectively.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: October 25, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Jong Hun Kim, Je Kyun Lee
  • Patent number: 11452979
    Abstract: A method for producing a plate type metal-silica composite aerogel and a plate type metal-silica composite aerogel produced thereby in which the metal salt concentration and the basic catalyst concentration are adjusted to form a plate type intermediate first, and then an appropriate amount of a water glass solution is added, thereby enabling the plate type metal-silica composite aerogel to be produced in a short time under conditions of low temperature and atmospheric pressure, so that the process is simpler than the conventional production method, and the cost is reduced, which is excellent in economy. Also provided is a plate type metal-silica composite aerogel, which is produced by the claimed method and has excellent dispersibility that requires no additional surface modifier.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: September 27, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Tae Gyeong Kang, Je Kyun Lee, Jong Hun Kim
  • Patent number: 11377360
    Abstract: A method of preparing acicular metal-silica composite aerogel particles by adjusting an aspect ratio of the acicular shape through the adjustment of concentrations of an acidic solution, a solution including a metal salt, and a water glass solution which are reactants, and acicular metal-silica composite aerogel particles prepared thereby. The method prepares acicular metal-silica composite aerogel particles in a short period of time under mild conditions of low temperature and atmospheric pressure, the process is simple, and production costs are reduced in comparison to a conventional preparation method, and thus, productivity and economic efficiency are excellent. When the acicular metal-silica composite aerogel particles are used as an additive of a polymer resin, physical properties, such as viscosity and thixotropy, are improved.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: July 5, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Hyun Woo Jeon, Je Kyun Lee
  • Publication number: 20220144652
    Abstract: Provided is a method of preparing a metal oxide-silica composite aerogel and a metal oxide-silica composite aerogel having an excellent weight reduction property prepared by the method. The method comprises adding an acid catalyst to a first water glass solution to prepare an acidic water glass solution (step 1); adding a metal ion solution to the acidic water glass solution to prepare a precursor solution (step 2); and adding a second water glass solution to the precursor solution and performing a gelation reaction (step 3).
    Type: Application
    Filed: January 26, 2022
    Publication date: May 12, 2022
    Inventors: Jong Hun KIM, Je Kyun LEE
  • Patent number: 11312103
    Abstract: Provided is a composite thermal insulation sheet including an aerogel and a method for manufacturing the same. The methods yield an ultra-thin aerogel composite sheet having characteristics of low dust, high strength and high thermal insulation, thereby having an increased applicability thereof to an electronic device.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: April 26, 2022
    Assignees: LG Chem, Ltd., LG Electronics Inc.
    Inventors: Kyoung Shil Oh, Je Kyun Lee, Byoung Wook Han, Yong Seog Jeon, Sang Woo Park, Joong Nyon Kim
  • Patent number: 11279622
    Abstract: The present invention relates to a method for producing a silica aerogel and a silica aerogel produced thereby. The present invention provides a two-step process of a nucleation step of forming silica colloid particles by using a low-concentration silica precursor and a growth step of further adding a relatively high-concentration silica precursor to form a silica wet gel by using the silica colloid particles as a seed. Thus, the present invention provides a method for producing a silica aerogel of which mechanical stability is improved to enhance pore characteristics, and physical properties are readily controllable, and also provides a silica aerogel produced thereby.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: March 22, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Young Hun Kim, Je Kyun Lee