Patents by Inventor Dong-Hun BAE

Dong-Hun BAE 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).

  • Patent number: 11973242
    Abstract: A degassing apparatus for a secondary battery, and a degassing method using same, is provided. The degassing apparatus includes a drive motor and a jig arm configured to pressurize a first surface of a gas pocket of a battery cell and a second surface opposite the first surface by controlling a separation distance by the operation of a driving motor. The degassing apparatus is capable of performing an effective degassing and sealing process for the battery cell without positional movement of the battery cell during cell activation or after cell activation.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: April 30, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Sang Jih Kim, Joon Sung Bae, Beom Koon Lee, Dong Hun Bae, Eui Kyung Lee, Suk Hyun Hong
  • Patent number: 11949062
    Abstract: A pressing jig for removing gas generated in an activation process of a battery cell includes a plate-shaped lower plate on which the battery cell that has undergone the activation process is placed and fixed, and an upper plate that presses the battery cell placed on the lower plate from above. At least one of the upper plate or the lower plate has a structure in which n (n?3) separated sub-plates are assembled to form a single plate, and the sub-plates independently press the battery cell. The pressing jig can suppress trapping of internal gas by sequentially pressing the battery cell.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: April 2, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Suk Hyun Hong, Joon Sung Bae, Eui Kyung Lee, Sang Jih Kim, Beom Koon Lee, Dong Hun Bae
  • Patent number: 11870082
    Abstract: The present invention is a method for manufacturing a secondary battery. An electrode assembly and an electrolyte are accommodated into a body of a battery case. The body of the battery case has an accommodation part and a gas pocket part, and a passage that extends from the accommodation part to the outside discharges an internal gas from the accommodation part through the gas pocket part. The battery case is seated in a seating step on a support block, which has an inclined part on a side surface thereof, to support the battery case. The body is pressed to discharge a gas accommodated in the accommodation part through the gas pocket part in the battery case. This method allows easy discharging of internal gas while reducing discharge of the electrolyte with the gas.
    Type: Grant
    Filed: November 21, 2022
    Date of Patent: January 9, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Dong Hun Bae, Hyo Jin Park, Suk Hyun Hong, Joon Sung Bae, Beom Koon Lee, Dae Bong Lim, Jin Woo Heo
  • Patent number: 11824154
    Abstract: An electrode includes a unit body stack part formed by stacking at least one basic unit having a four-layer structure in which a first electrode, a first separator, a second electrode and a second separator are sequentially stacked. Each surface of the first separator and the second separator is coated with a coating material having adhesiveness, and the basic unit adheres to an adjacent radial unit in the unit body stack part. The electrode assembly of allows a heating and pressing process to be performed prior to a primary formation process so that a separator of one basic unit and a first electrode of the other basic unit to be adhered and fixed by a coating material coated on the separator, and thus a bending phenomenon caused by a difference in electrode expansion rates in a charging/discharging process is prevented.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: November 21, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Suk Hyun Hong, Eui Kyung Lee, Hyo Jin Park, Joon Sung Bae, Beom Koon Lee, Dong Hun Bae
  • Publication number: 20230361430
    Abstract: A separator for an electrochemical device, an electrode assembly and secondary battery including the same, and a method of manufacturing the separator. The separator for an electrochemical device 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 a binder polymer and inorganic particles. The separator has a central portion and two end portions. The thickness of the separator at the two end portions in the transverse direction (TD) is larger than the thickness of the separator at the central portion in the TD. The separator prevents generation of a deficiency in adhesion at the two end portions in the TD upon the adhesion of the separator with the electrodes and has uniform adhesion by controlling the thickness of the two end portions of the separator in the TD.
    Type: Application
    Filed: July 20, 2023
    Publication date: November 9, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Won-Sik BAE, Dong-Hun BAE, So-Jung PARK, Jong-Yoon LEE, So-Mi JEONG
  • Patent number: 11728506
    Abstract: A device for charging and discharging a battery cell capable of suppressing a swelling phenomenon of a terrace portion of a battery cell during a formation process of the battery cell includes first and second plates configured to receive a battery cell therebetween and to press two surfaces of the battery cell; first and second grippers connected to the first and second plates, respectively, the first and second grippers protrude to face each other and configured to contact a lead region of the battery cell; and first and second pressing pads positioned inward of the first and second grippers, the first and second pressing pads being configured to contact a terrace region of the battery cell. A method of charging and discharging a battery cell using the same is also provided.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: August 15, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Suk Hyun Hong, Joon Sung Bae, Eui Kyung Lee, Sang Jih Kim, Beom Koon Lee, Dong Hun Bae
  • Publication number: 20230187684
    Abstract: The present invention relates to a method for manufacturing a secondary battery and an apparatus for manufacturing a secondary battery. The method for manufacturing the secondary battery according to the present invention comprises: an accommodation process of accommodating an electrode assembly, in which electrodes and separators are alternately stacked, an electrolyte, and one side portion of electrode leads connected to the electrodes, in a pouch to form a cell; an activation process of charging the cell to activate the cell; a pressing process of sequentially pressing the cell through pressing rolls after the activation process to press the cell; and a degassing process of discharging an internal gas of the cell to the outside after the pressing process.
    Type: Application
    Filed: July 5, 2021
    Publication date: June 15, 2023
    Applicant: LG Energy Solution, Ltd.
    Inventors: Suk Hyun Hong, Eui Kyung Lee, Joon Sung Bae, Sang Jih Kim, Beom Koon Lee, Dong Hun Bae
  • Publication number: 20230135483
    Abstract: A device for charging and discharging a battery cell includes first and second plates spaced from each other, the first and second plates being configured to press respective first and second surfaces of a battery cell locatable therebetween, and first and second pressing blocks located on the first and second plates, respectively, the first and second pressing blocks protruding from the first and second plates to face each other. The first and second pressing blocks are locatable in a space between a body and a gas pocket of the battery cell. A method using the device is also provided.
    Type: Application
    Filed: November 22, 2021
    Publication date: May 4, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Suk Hyun HONG, Joon Sung BAE, Eui Kyung LEE, Sang Jih KIM, Beom Koon LEE, Dong Hun BAE
  • Publication number: 20230077553
    Abstract: The present invention is a method for manufacturing a secondary battery. An electrode assembly and an electrolyte are accommodated into a body of a battery case. The body of the battery case has an accommodation part and a gas pocket part, and a passage that extends from the accommodation part to the outside discharges an internal gas from the accommodation part through the gas pocket part. The battery case is seated in a seating step on a support block, which has an inclined part on a side surface thereof, to support the battery case. The body is pressed to discharge a gas accommodated in the accommodation part through the gas pocket part in the battery case. This method allows easy discharging of internal gas while reducing discharge of the electrolyte with the gas.
    Type: Application
    Filed: November 21, 2022
    Publication date: March 16, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Dong Hun BAE, Hyo Jin PARK, Suk Hyun HONG, Joon Sung BAE, Beom Koon LEE, Dae Bong LIM, Jin Woo HEO
  • Publication number: 20230045436
    Abstract: The present invention provides a gas removing device, which removes a gas generated inside a pouch, in which an electrode assembly is accommodated. The gas removing device includes a pair of vacuum tubes configured to press opposing surfaces of a pouch so as to form a vacuum surface on the pouch; a heating member provided on a pressing surface of each of the vacuum tubes, which presses the pouch, is configured to seal only a portion of an edge of the vacuum surface so as to form a sealed part and an unsealed part; a cutting member configured to cut the vacuum surface of the pouch and form a cutoff hole; and a gas discharging member configured to discharge a gas from inside the pouch to the outside through the unsealed part, the cutoff hole, and the vacuum tubes.
    Type: Application
    Filed: September 16, 2021
    Publication date: February 9, 2023
    Applicant: LG Energy Solution, Ltd.
    Inventors: Sang Jih Kim, Joon Sung Bae, Eui Kyung Lee, Suk Hyun Hong, Beom Koon Lee, Dong Hun Bae
  • Publication number: 20230029709
    Abstract: A device for charging and discharging a battery cell capable of suppressing a swelling phenomenon of a terrace portion of a battery cell during a formation process of the battery cell includes first and second plates configured to receive a battery cell therebetween and to press two surfaces of the battery cell; first and second grippers connected to the first and second plates, respectively, the first and second grippers protrude to face each other and configured to contact a lead region of the battery cell; and first and second pressing pads positioned inward of the first and second grippers, the first and second pressing pads being configured to contact a terrace region of the battery cell. A method of charging and discharging a battery cell using the same is also provided.
    Type: Application
    Filed: November 22, 2021
    Publication date: February 2, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Suk Hyun HONG, Joon Sung BAE, Eui Kyung LEE, Sang Jih KIM, Beom Koon LEE, Dong Hun BAE
  • Patent number: 11539068
    Abstract: The present invention is a method for manufacturing a secondary battery. An electrode assembly and an electrolyte are accommodated into a body of a battery case. The body of the battery case has an accommodation part and a gas pocket part, and a passage that extends from the accommodation part to the outside discharges an internal gas from the accommodation part through the gas pocket part. The battery case is seated in a seating step on a support block, which has an inclined part on a side surface thereof, to support the battery case. The body is pressed to discharge a gas accommodated in the accommodation part through the gas pocket part in the battery case. This method allows easy discharging of internal gas while reducing discharge of the electrolyte with the gas.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: December 27, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Dong Hun Bae, Hyo Jin Park, Suk Hyun Hong, Joon Sung Bae, Beom Koon Lee, Dae Bong Lim, Jin Woo Heo
  • Patent number: 11473977
    Abstract: A temperature measurement device suitable for measuring the temperature of each secondary battery to consider a temperature deviation between secondary batteries that may occur during charging/discharging in the formation process and capacity test after the secondary battery assembly process, and a charge/discharge apparatus including the temperature measurement device are provided. The temperature measurement device is for measuring a temperature of at least one of a plurality of secondary batteries arranged along an X-axis direction, spaced apart from one another, in a standing position, and includes a non-contact temperature sensor unit which is insertable into a spacing between adjacent secondary batteries to measure the temperature of the secondary battery that the non-contact temperature sensor unit faces in a non-contact manner, and a Z-axis transfer device which inserts the non-contact temperature sensor unit into the spacing downward from above the secondary batteries in a Z-axis direction.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: October 18, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Beom-Koon Lee, Hyo-Jin Park, Dong-Hun Bae, Joon-Sung Bae, Eui-Kyung Lee, Suk-Hyun Hong
  • Publication number: 20220278352
    Abstract: A pressing jig for removing gas generated in an activation process of a battery cell includes a plate-shaped lower plate on which the battery cell that has undergone the activation process is placed and fixed, and an upper plate that presses the battery cell placed on the lower plate from above. At least one of the upper plate or the lower plate has a structure in which n (n?3) separated sub-plates are assembled to form a single plate, and the sub-plates independently press the battery cell. The pressing jig can suppress trapping of internal gas by sequentially pressing the battery cell.
    Type: Application
    Filed: January 8, 2021
    Publication date: September 1, 2022
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Suk Hyun HONG, Joon Sung BAE, Eui Kyung LEE, Sang Jih KIM, Beom Koon LEE, Dong Hun BAE
  • Patent number: 11329496
    Abstract: A charging and discharging apparatus including a temperature measuring device suitable for measuring a temperature of each secondary battery and a cooling fan for cooling secondary batteries by utilizing temperature information using the temperature measuring device, such that a temperature deviation between the secondary batteries, which may occur during charging and discharging in a formation process and a capacity test after a secondary battery assembly process, is provided. The charging and discharging apparatus includes a movable non-contact temperature measuring device and cooling fans of which directions of wind and outputs are individually adjusted based on temperature information measured by the temperature measuring device according to a location in each secondary battery.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: May 10, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Beom-Koon Lee, Hyo-Jin Park, Dong-Hun Bae, Joon-Sung Bae, Eui-Kyung Lee, Suk-Hyun Hong
  • Publication number: 20220115688
    Abstract: A formation jig includes a pressing plate configured to press a battery cell, the pressing plate having a first through hole; a pressing support plate configured to support the battery cell when the pressing plate presses an upper or lower portion of the battery cell, the pressing support plate having a second through hole and a third through hole; a first screw configured to pass through first through hole of the pressing plate and the second through hole of the pressing support plate and to move the pressing plate in a gap-adjusting direction by rotation thereof; and a second screw configured to pass through the third through hole of the pressing support plate and to move the pressing support plate in the gap-adjusting direction by rotation thereof. A diameter of the second through hole is larger than a diameter of the first through hole.
    Type: Application
    Filed: October 22, 2020
    Publication date: April 14, 2022
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Dong Hun BAE, Joon Sung BAE, Eui Kyung LEE, Sang Jih KIM, Suk Hyun HONG, Beom Koon LEE
  • Publication number: 20220077537
    Abstract: A degassing apparatus for a secondary battery, and a degassing method using same, is provided. The degassing apparatus includes a drive motor and a jig arm configured to pressurize a first surface of a gas pocket of a battery cell and a second surface opposite the first surface by controlling a separation distance by the operation of a driving motor. The degassing apparatus is capable of performing an effective degassing and sealing process for the battery cell without positional movement of the battery cell during cell activation or after cell activation.
    Type: Application
    Filed: July 22, 2020
    Publication date: March 10, 2022
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Sang Jih KIM, Joon Sung BAE, Beom Koon LEE, Dong Hun BAE, Eui Kyung LEE, Suk Hyun HONG
  • Publication number: 20210226472
    Abstract: A charging and discharging apparatus including a temperature measuring device suitable for measuring a temperature of each secondary battery and a cooling fan for cooling secondary batteries by utilizing temperature information using the temperature measuring device, such that a temperature deviation between the secondary batteries, which may occur during charging and discharging in a formation process and a capacity test after a secondary battery assembly process, is provided. The charging and discharging apparatus includes a movable non-contact temperature measuring device and cooling fans of which directions of wind and outputs are individually adjusted based on temperature information measured by the temperature measuring device according to a location in each secondary battery.
    Type: Application
    Filed: November 19, 2019
    Publication date: July 22, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Beom-Koon LEE, Hyo-Jin PARK, Dong-Hun BAE, Joon-Sung BAE, Eui-Kyung LEE, Suk-Hyun HONG
  • Publication number: 20200411896
    Abstract: An electrode includes a unit body stack part formed by stacking at least one basic unit having a four-layer structure in which a first electrode, a first separator, a second electrode and a second separator are sequentially stacked. Each surface of the first separator and the second separator is coated with a coating material having adhesiveness, and the basic unit adheres to an adjacent radial unit in the unit body stack part. The electrode assembly of allows a heating and pressing process to be performed prior to a primary formation process so that a separator of one basic unit and a first electrode of the other basic unit to be adhered and fixed by a coating material coated on the separator, and thus a bending phenomenon caused by a difference in electrode expansion rates in a charging/discharging process is prevented.
    Type: Application
    Filed: December 19, 2019
    Publication date: December 31, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Suk Hyun HONG, Eui Kyung LEE, Hyo Jin PARK, Joon Sung BAE, Beom Koon LEE, Dong Hun BAE
  • Publication number: 20200403263
    Abstract: The present invention is a method for manufacturing a secondary battery. An electrode assembly and an electrolyte are accommodated into a body of a battery case. The body of the battery case has an accommodation part and a gas pocket part, and a passage that extends from the accommodation part to the outside discharges an internal gas from the accommodation part through the gas pocket part. The battery case is seated in a seating step on a support block, which has an inclined part on a side surface thereof, to support the battery case. The body is pressed to discharge a gas accommodated in the accommodation part through the gas pocket part in the battery case. This method allows easy discharging of internal gas while reducing discharge of the electrolyte with the gas.
    Type: Application
    Filed: December 7, 2018
    Publication date: December 24, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Dong Hun BAE, Hyo Jin PARK, Suk Hyun HONG, Joon Sung BAE, Beom Koon LEE, Dae Bong LIM, Jin Woo HEO