Patents by Inventor Sang-kyun Lee

Sang-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: 20220137387
    Abstract: Provided are a pulse compressor and a two-photon excited fluorescence microscope. The microscope includes a light source which generates a laser beam having a pulse, a pulse compressor which compresses the pulse of the laser beam, an objective lens which provides the laser beam to a specimen, and image sensors which receive the laser beam and obtain images of the specimen. The pulse compressor may include a grating plate, a corner cube provided on one side of the grating plate, and a retroreflector provided on the other side of the grating plate.
    Type: Application
    Filed: August 30, 2021
    Publication date: May 5, 2022
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Sang Kyun LEE, Dong Hoon SONG, Hong-Seok SEO, Chul HUH
  • Publication number: 20220123354
    Abstract: An apparatus for manufacturing a secondary battery includes: a recess induction part configured to allow a folding part folded in a battery case of a secondary battery to be recessed inward so as to provide a recess part when the battery case of the secondary battery is folded; a first guide, of which one side of one end is recessed to define a concave space, wherein, when the battery case of the secondary battery is folded, the one end is configured to be inserted into the battery case to push the folding part to an outside so that the recess induction part is configured to be inserted into the concave space; and a second guide configured to hold a sealing part of the battery case so as to fix the battery case.
    Type: Application
    Filed: March 31, 2020
    Publication date: April 21, 2022
    Applicant: LG Energy Solution, Ltd.
    Inventors: Sang Kyun Lee, Min Soo Park, Dong Yeon Kim, Jin Hak Kong, Eui Jin Hong
  • Publication number: 20220029192
    Abstract: An apparatus for manufacturing a secondary battery includes a first guide in which one side of one end is recessed to define a concave space, wherein, when a battery case of the secondary battery is folded, the one end is configured to be inserted into the battery case to push a folding part of the battery case to an outside; and a second guide configured to hold a sealing part of the battery case so as to fix the battery case.
    Type: Application
    Filed: March 31, 2020
    Publication date: January 27, 2022
    Applicant: LG Energy Solution, Ltd.
    Inventors: Sang Kyun Lee, Min Soo Park, Young Ha Kim, Young Hoon Hong, Seong Hyun Kim, Eui Jin Hong
  • Patent number: 11196031
    Abstract: The present invention relates to an electrode, for reducing a difference in ductility between a non-coating portion and a coating portion of the electrode, a method for manufacturing the electrode, and a roller for manufacturing the electrode. Also, the electrode according to the present invention includes an electrode foil, a coating portion coated with an electrode active material on one surface of the electrode foil, and a non-coating portion which is disposed adjacent to the coating portion on the one surface of the electrode foil, and is not coated with the electrode active material and on which a pattern is disposed.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: December 7, 2021
    Inventors: Sang Kyun Lee, Seok Jin Kim, Cha Hun Ku
  • Patent number: 11171354
    Abstract: The present invention relates to an electrode assembly and a method for manufacturing the same, and more particularly, to an electrode assembly in which a degree of alignment of cells is improved and a method for manufacturing the same. An electrode assembly according to the present invention comprises a separator sheet folded in a zigzag shape and a unit cell having a structure in which an electrode and a separator are alternately stacked, wherein the unit cell is repeatedly disposed between the separator sheet that is folded in a zigzag shape, and at least a portion of the unit cell and at least a portion of the separator sheet are bonded to each other.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: November 9, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Sang Kyun Lee, Jung Kwan Pyo, Cha Hun Ku
  • Publication number: 20210249694
    Abstract: Provided is a method for manufacturing an all-solid-state battery which allows a solid electrolyte layer and an electrode to be in sufficiently close in contact with each other without deformation of the electrode shape or damages upon the electrode. The method for manufacturing an all-solid-state battery includes applying slurry for a solid electrolyte layer to the surface of an electrode active material layer to form a patterned solid electrolyte layer, and carrying out pressurization to form a solid electrolyte layer.
    Type: Application
    Filed: November 1, 2019
    Publication date: August 12, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Byoung-Hoon AHN, Sang-Kyun LEE, Hae-Kang CHUNG, Baeck-Boem CHOI, Sang-Hoon CHOY
  • Patent number: 11038242
    Abstract: The present invention relates to an electrode assembly. The electrode assembly comprises: a first separator sheet; and first and second electrode sheets respectively adhering to both sides of the first separator sheet, wherein both the surfaces of the first separator sheet have adhesion different from each other, the first electrode sheet adheres to a first surface, which has relatively high adhesion, of both the surfaces, and the second electrode sheet adheres to a second surface, which has relatively low adhesion, of both the surfaces.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: June 15, 2021
    Inventors: Sang Kyun Lee, Cha Hun Ku, Sang Hun Kim, Tae Kyu Kim, Min Cheol Choi
  • Patent number: 10903468
    Abstract: The present invention relates to a plasma generating apparatus for a secondary battery. The plasma generating apparatus for the secondary battery comprises a transfer roller that transfers a separator, a metal member disposed within the transfer roller, a plasma generating member that interacts with the metal member to generate a plasma and irradiate the generated plasma onto a surface of the separator, and a protrusion member that causes a portion of the separator closely attached to the transfer roller to protrude and forms an adhesion area, which is adhesive, and a non-adhesion area, which is non-adhesive or less adhesive than the adhesion area, by allowing the plasma to be irradiated onto the adhesion area and no plasma or less plasma to be irradiated onto the non-adhesion area.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: January 26, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Duck Hoe Kim, Min Wook Kim, Ju Hyeon Cho, Cha Hun Ku, Sang Kyun Lee
  • Patent number: 10903479
    Abstract: Disclosed is an apparatus for manufacturing an electrode or a solid electrolyte for an all-solid-state battery. The apparatus for manufacturing an electrode or a solid electrolyte for an all-solid-state battery includes a first roller member configured to press an electrode or a solid electrolyte for an all-solid-state battery, and a second roller member located to be spaced apart from the first roller member to press the electrode or the solid electrolyte for an all-solid-state battery. The first roller member and the second roller member are disposed at opposite locations based on the electrode or the solid electrolyte for an all-solid-state battery.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: January 26, 2021
    Inventors: Sang-Kyun Lee, Min-Wook Kim, Baeck-Boem Choi, Cha-Hun Ku
  • Patent number: 10874986
    Abstract: A water purifier comprising: a filter unit comprising at least one filter filtering water to generate purified water; a flow rate sensor measuring a flow rate of the water; a concentrated water channel discharging concentrated water, having been filtered by the filter unit; an extraction unit extracting the purified water; a flow rate control valve controlling a flow rate of purified water; an opening and closing degree measurement unit, measuring a degree of opening and closing of the flow rate control valve; a concentrated water ratio calculation unit, calculating a ratio between purified water and concentrated water, according to the degree of opening and closing of the flow rate control valve; and a controller, using the flow rate of water and the calculated ratio between purified water and concentrated water, to calculate amounts of water used, integrating the calculated amounts of water, and calculating a lifespan (remaining life) of the filter.
    Type: Grant
    Filed: July 4, 2017
    Date of Patent: December 29, 2020
    Inventors: Jae-Hoon Kim, Young-Jae Lee, Su-Yong Park, Sang-Kyun Lee, Jung-Hun Lee, Hyun-Woo Lee, Ju-Hyuk Eom, Min-Sub Song, Sung-Han Yun, Dae-Sik Kang, Si-Jun Park
  • Patent number: 10826039
    Abstract: An electrode assembly for a secondary battery having reduced internal resistance while adhesion between a separator and an electrode is maintained and having improved electrolyte impregnation the electrode assembly including a separator having a processed area having undergone a corona discharging process and a non-processed area.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: November 3, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Sang Kyun Lee, Ju Hyeon Cho, Cha-Hun Ku, Seok Jin Kim, Duck Hoe Kim
  • Publication number: 20200326273
    Abstract: The present disclosure provides a sample analyzer and an analyzing method thereof. The sample analyzer includes a first beam source configured to provide a first energy beam to a sample, a second beam source configured to provide a second energy beam, which is different from the first energy beam, to the sample, a reflected beam sensor disposed between the second beam source and the sample to detect a reflected beam of the second energy beam, which is reflected by one side of the sample, and a transmitted beam sensor disposed adjacent to the other side of the sample to detect a transmitted beam of the second energy beam.
    Type: Application
    Filed: April 7, 2020
    Publication date: October 15, 2020
    Inventors: Moon Youn JUNG, Won Bae CHO, Dong Hoon SONG, Dong-Ho SHIN, Sang Kyun LEE
  • Patent number: 10804560
    Abstract: A unit cell for a secondary battery includes a central electrode having a first polarity, a pair of separators respectively laminated on both surfaces the central electrode, and an upper electrode and a lower electrode respectively laminated on the pair of separators and having a second polarity, wherein the separator has a patterned adhesive force.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: October 13, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Sang-Kyun Lee, Ju-Hyeon Cho, Duck-Hoe Kim, Cha-Hun Ku
  • Patent number: 10749152
    Abstract: The present invention relates to a sealing apparatus for a secondary battery, which seals a sealing part of a case in which an electrode assembly and an electrolyte are accommodated, and the sealing apparatus comprises a sealing member comprising a first sealing piece and a second sealing piece, which thermally fuse a surface of the sealing part to seal the sealing part, wherein the first sealing piece and the second sealing piece comprise a plurality of thermal fusion parts, which are disposed from an outer end of a surface of the sealing part toward an inner end that is opposite to the outer end to thermally fuse the surface of the sealing part, and non-thermal fusion parts, which are disposed between the plurality of thermal fusion parts and do not seal the surface of the sealing part.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: August 18, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Sang Kyun Lee, Cha Hun Ku
  • Patent number: 10749160
    Abstract: The present invention relates to an electrode assembly. The electrode assembly comprises: a first separator sheet; and a first electrode sheet and a second electrode sheet, which respectively adhere to both surfaces of the first separator sheet, wherein patterned masks having different adhesion force are respectivley disposed on both the surfaces of the first separator sheet, and the first electrode sheet adheres to the mask of a first surface of both the surfaces, which has relatively high adhesion force, and the second electrode sheet adheres to the mask of a second surface having relatively low adhesion force.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: August 18, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Sang Kyun Lee, Cha Hun Ku, Jung Kwan Pyo, Ju Hyeon Cho
  • Patent number: 10714716
    Abstract: The present invention relates to a sealing apparatus for a secondary battery, which seals a sealing part of a case in which an electrode assembly and an electrolyte are accommodated, and the sealing apparatus comprises a sealing member comprising a first sealing piece and a second sealing piece, which thermally fuse a surface of the sealing part to seal the sealing part, wherein the first sealing piece and the second sealing piece comprise a plurality of thermal fusion parts, which are disposed from an outer end of a surface of the sealing part toward an inner end that is opposite to the outer end to thermally fuse the surface of the sealing part, and non-thermal fusion parts, which are disposed between the plurality of thermal fusion parts and do not seal the surface of the sealing part.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: July 14, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Sang Kyun Lee, Cha Hun Ku
  • Publication number: 20200203754
    Abstract: An electrode transferring apparatus of a battery cell includes: a transferring body configured to transfer at least one electrode of the battery cell; and an electrode gripper mounted to the transferring body to be vertically movable, the electrode gripper being configured to grip at least one electrode of the battery cell and having a rounded end in contact with the at least one electrode.
    Type: Application
    Filed: January 3, 2019
    Publication date: June 25, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Sang-Kyun LEE, Baeck-Boem CHOI, Cha-Hun KU, Min-Wook KIM, Jin-Gon KIM
  • Publication number: 20200185680
    Abstract: The present invention relates to a plasma generating apparatus for a secondary battery. The plasma generating apparatus for the secondary battery comprises a transfer roller that transfers a separator, a metal member disposed within the transfer roller, a plasma generating member that interacts with the metal member to generate a plasma and irradiate the generated plasma onto a surface of the separator, and a protrusion member that causes a portion of the separator closely attached to the transfer roller to protrude and forms an adhesion area, which is adhesive, and a non-adhesion area, which is non-adhesive or less adhesive than the adhesion area, by allowing the plasma to be irradiated onto the adhesion area and no plasma or less plasma to be irradiated onto the non-adhesion area.
    Type: Application
    Filed: April 6, 2018
    Publication date: June 11, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Duck Hoe KIM, Min Wook KIM, Ju Hyeon CHO, Cha Hun KU, Sang Kyun LEE
  • Publication number: 20200091550
    Abstract: Provided is a lithium metal secondary battery ensuring electrode-separator adhesive strength and a method for fabricating the same. The lithium metal secondary battery according to the present disclosure includes a negative electrode, a separator and a positive electrode, the negative electrode including a lithium metal foil as a negative electrode material, wherein a nano imprint pattern structure is formed on a lithium metal foil surface which is a surface of the negative electrode facing the separator, and the negative electrode and the separator are adhered to each other.
    Type: Application
    Filed: December 21, 2018
    Publication date: March 19, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Baeck-Boem Choi, Cha-Hun Ku, Min-Wook Kim, Sang-Kyun Lee
  • Publication number: 20200075909
    Abstract: The present invention relates to an electrode assembly. The electrode assembly comprises: a first separator sheet; and first and second electrode sheets respectively adhering to both sides of the first separator sheet, wherein both the surfaces of the first separator sheet have adhesion different from each other, the first electrode sheet adheres to a first surface, which has relatively high adhesion, of both the surfaces, and the second electrode sheet adheres to a second surface, which has relatively low adhesion, of both the surfaces.
    Type: Application
    Filed: November 8, 2019
    Publication date: March 5, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Sang Kyun Lee, Cha Hun Ku, Sang Hun Kim, Tae Kyu Kim, Min Cheol Choi