Patents by Inventor Joon-Sung Bae

Joon-Sung 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
  • Publication number: 20240113529
    Abstract: A secondary battery charging method that shortens charging time includes a step for introducing a plurality of battery cells onto an activation tray and CC-charging the battery cells; and a step for connecting the plurality of battery cells in parallel. The charging method according to the present invention shortens the time typically required for CV-charging by connecting battery cells in parallel after CC-charging, thus having the effect of replacing CV-charging.
    Type: Application
    Filed: November 21, 2023
    Publication date: April 4, 2024
    Inventors: So Hee KIM, Nak Gi SUNG, Joon Sung BAE
  • 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: 11929630
    Abstract: A secondary battery charging method that shortens charging time includes a step for introducing a plurality of battery cells onto an activation tray and CC-charging the battery cells; and a step for connecting the plurality of battery cells in parallel. The charging method according to the present invention shortens the time typically required for CV-charging by connecting battery cells in parallel after CC-charging, thus having the effect of replacing CV-charging.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: March 12, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: So Hee Kim, Nak Gi Sung, Joon Sung Bae
  • Patent number: 11876191
    Abstract: The present invention relates to a method for activating a secondary battery. The present invention comprises: a primary charging step of charging a secondary battery including a positive electrode, a negative electrode, a separator, and an electrolyte; a room temperature-aging step of storing, at a room temperature, the secondary battery that has undergone the primary charging step; and a high temperature-aging step of storing, at a high temperature, the secondary battery that has undergone the room temperature-aging step, wherein charging/discharging is performed by alternately applying + current and ? current to the secondary battery at the end of the primary charging step. The method for activating a secondary battery according to the present invention includes alternately applying + current and ? current to the secondary battery at the end of the primary charging step to stabilize an SEI film, thereby shortening a following-up aging time.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: January 16, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: In Young Cha, Joon Sung Bae, Sung Hoon Yu, Seung Youn Choi, Gyu Ok Hwang
  • 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
  • Patent number: 11796595
    Abstract: An apparatus for inspecting defects of a secondary battery having a pair of pressing jigs which press an outer surface of an electrode or a pouch accommodating the electrode assembly in directions corresponding to each other and on which a plurality of protrusions protrude from pressing surfaces and a measurement unit measuring one or more of current, a voltage, and resistance of the electrode assembly when the electrode assembly is pressed by the plurality of protrusions of the pair of pressing jigs is provided.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: October 24, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Joon Sup Kang, Sung Tae Kim, Nak Gi Sung, Joon Sung Bae
  • Publication number: 20230308191
    Abstract: Devices included in a wireless neural interface system are disclosed.
    Type: Application
    Filed: November 15, 2022
    Publication date: September 28, 2023
    Inventors: Joon Sung BAE, Young Cheol CHAE, Byeong Seol KIM, Chang Uk LEE
  • 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
  • Patent number: 11641047
    Abstract: A method for manufacturing a cylindrical battery having multiple tabs is provided in which the cylindrical battery includes an electrode assembly, a cylindrical pouch case, an electrode tab protruding to an upper end of the electrode assembly, and an electrode lead welded and electrically connected to the electrode tab, with the electrode tab being plural. The method includes disposing the plurality of electrode tabs on the electrode assembly; winding the electrode assembly into a cylindrical shape; connecting the electrode lead to the plurality of electrode tabs disposed on the upper end of the electrode assembly; inserting the electrode assembly into the cylindrical pouch case to produce a battery cell; connecting, to the cylindrical pouch case, a gas collecting part for collecting gas generated due to charging and discharging of the electrode; and forming a guide part for preventing deformation of the battery cell in the cylindrical pouch case.
    Type: Grant
    Filed: January 2, 2020
    Date of Patent: May 2, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Hyojin Park, Joon Sung 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: 11567048
    Abstract: A jig for pressing a gas analysis monocell according to the present invention comprises: a first plate and a second plate which face each other with a monocell therebetween; a first auxiliary pad positioned between the first plate and the monocell; and a second auxiliary pad positioned between the second plate and the monocell, wherein the first plate and the second plate are formed of a thermosetting resin. When analyzing a gas generated from the monocell during a primary charge, the jig for pressing the monocell according to the present invention presses the thin monocell to prevent a gap from forming between electrodes due to the primary charge, and thus has an effect of deriving more reliable analysis results.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: January 31, 2023
    Assignee: LG Energy Solution, Ltd.
    Inventors: Ju Kyung Shin, Joon Sung Bae, Gyu Ok Hwang, In Young Cha
  • 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: 11471715
    Abstract: A charging-discharging device for secondary battery and a secondary battery activation process device are provided. The charging-discharging device of the present invention includes a box-type body including two open parts formed at lateral surfaces thereof; charging-discharging terminals disposed on lateral surfaces of the body; a nonflammable blocking means for opening or closing the open parts at the lateral surfaces; an air conditioning line connected to the inside of the body to individually control the temperature of each charging-discharging device; and/or a CO 2 supply line for spraying carbon dioxide inside the body when a fire occurs. It is possible to uniformly control and manage the internal temperature of the charging-discharging device for performing an activation process of a secondary battery, and when a fire occurs, the fire can be immediately and efficiently extinguished and prevented from spreading to the outside.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: October 18, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Hyo Jin Park, Joon Sung Bae
  • 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