Patents by Inventor Nohyun Kwag

Nohyun Kwag 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: 11837739
    Abstract: A battery pack includes: battery cells, each including end portions in a height direction thereof; a case accommodating the battery cells and a cooling fluid; and first and second holder plates coupled to the case to face each other along the case such that the end portions of the battery cells are insertable therethrough, an accommodation space being defined between the first and second holder plates to accommodate the cooling fluid, and the case, the battery cells, and the first and second holder plates have heights in the height direction that satisfy the condition: a height between the first and second holder plates<a height of the battery cells<a height of the case, and the battery pack further includes a potting resin on the first and second holder plates.
    Type: Grant
    Filed: March 17, 2023
    Date of Patent: December 5, 2023
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Nohyun Kwag
  • Patent number: 11837738
    Abstract: A battery pack including battery cells bounded by an imaginary rectangular envelope including a pair of long sides and a pair of short sides extending to linearly surround an outer periphery of the battery cells across an outer circumference of the battery cells; and bus bars that electrically connect at least some of the battery cells to each other, the bus bars being arranged to extend in a zig-zag shape along a short side direction of the imaginary rectangular envelope.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: December 5, 2023
    Assignee: SAMSUNG SDI CO., LTD.
    Inventor: Nohyun Kwag
  • Patent number: 11824175
    Abstract: An embodiment of the present disclosure provides a battery module including: battery cells including negative and positive electrodes on the same side; a first conductive plate provided at end portions of the battery cells and adjacent to the negative and positive electrodes, the first conductive plate including first through-holes through which the negative and positive electrodes are respectively exposed and first stepped portions which are adjacent to the first through-holes and recessed toward the battery cells; an insulative plate arranged on the first conductive plate and including second through-holes which at least partially overlap the first through-holes; a second conductive plate on the insulative plate, the second conductive plate including third through-holes which at least partially overlap the second through-holes and second stepped portions which are adjacent to the third through-holes and recessed toward the insulative plate; first connection tabs electrically connecting the positive electrod
    Type: Grant
    Filed: September 26, 2022
    Date of Patent: November 21, 2023
    Assignee: SAMSUNG SDI CO., LTD.
    Inventor: Nohyun Kwag
  • Publication number: 20230361374
    Abstract: A battery pack includes: battery cells each including first and second end portions that are opposite each other in a length direction; a case providing an accommodation space in which each battery cell and a cooling fluid for cooling the battery cell are located, the case including a first cover covering the first end portion of the battery cell, the first cover including a first terminal hole through which the first end portion of the battery cell is partially exposed; and first and second sealing members doubly surrounding the first terminal hole from an outside of the first terminal hole to block a cooling fluid leakage passage formed through the first terminal hole. Therefore, while improving heat-dissipating performance, a cooling fluid sealing structure may be provided to the battery pack to prevent cooling fluid leakage from the accommodation space in which the battery cells are accommodated.
    Type: Application
    Filed: July 17, 2023
    Publication date: November 9, 2023
    Inventor: Nohyun Kwag
  • Patent number: 11799159
    Abstract: A battery pack includes: battery cells, each including end portions in a height direction thereof; a case accommodating the battery cells and a cooling fluid; and first and second holder plates coupled to the case to face each other along the case such that the end portions of the battery cells are insertable therethrough, an accommodation space being defined between the first and second holder plates to accommodate the cooling fluid, and the case, the battery cells, and the first and second holder plates have heights in the height direction that satisfy the condition: a height between the first and second holder plates <a height of the battery cells <a height of the case, and the battery pack further includes a potting resin on the first and second holder plates.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: October 24, 2023
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Nohyun Kwag
  • Patent number: 11749848
    Abstract: A battery pack includes: battery cells each including first and second end portions that are opposite each other in a length direction; a case providing an accommodation space in which each battery cell and a cooling fluid for cooling the battery cell are located, the case including a first cover covering the first end portion of the battery cell, the first cover including a first terminal hole through which the first end portion of the battery cell is partially exposed; and first and second sealing members doubly surrounding the first terminal hole from an outside of the first terminal hole to block a cooling fluid leakage passage formed through the first terminal hole. Therefore, while improving heat-dissipating performance, a cooling fluid sealing structure may be provided to the battery pack to prevent cooling fluid leakage from the accommodation space in which the battery cells are accommodated.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: September 5, 2023
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Nohyun Kwag
  • Patent number: 11742537
    Abstract: A battery pack includes: battery cells, each including first and second end portions that are opposite each other in a length direction; a case having an accommodation space in which the battery cells and a fluid to cool the battery cells are configured to be accommodated, the case including first and second covers respectively covering the first and second end portions; first and second tab plates respectively on the first and second covers and connected to the first and second end portions; a circuit board on the first tab plate; and a first lead and a second lead through which the first and second tab plates are connected to the circuit board, the first and second leads connected to a first side portion of the circuit board. An arrangement of the leads connected to electrodes of the battery cells is improved, and heat is efficiently dissipated from a switch device.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: August 29, 2023
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jooyul Lee, Nohyun Kwag, Seungil Kim, Gangya Park, Jungjin Lee
  • Patent number: 11742534
    Abstract: A battery pack includes: battery cells including first battery cells and second battery cells, each of the first and second battery cells including a first end portion and a second end portion that are opposite each other in a length direction of the respective battery cell, adjacent first end portions being arranged in a stepped manner; and a case providing an accommodation space in which the battery cells and a cooling fluid to cool the battery cells are configured to be accommodated, the case including a first cover covering the first end portions of the battery cells, the first cover being arranged along a height difference between the first end portions of the first and second battery cells and defining a height difference space, corresponding to the height difference, on an outer side of the first cover.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: August 29, 2023
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Nohyun Kwag
  • Patent number: 11728527
    Abstract: A battery pack includes: a plurality of battery cells; a printed circuit board (PCB) substrate electrically connected to the plurality of battery cells and including first and second surfaces opposite each other; and first and second electrode tabs electrically connecting each of the plurality of battery cells and the PCB substrate and respectively connected to conductive pads that have different polarities and are located on the first surface of the PCB substrate. The battery pack has an improved structure for easily electrically connecting the battery cells.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: August 15, 2023
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jihwan Seol, Nohyun Kwag, Sanghoon Bae, Jooyul Lee
  • Patent number: 11721864
    Abstract: A battery pack includes battery cells adjacent to each other, each of the battery cells including a vent portion, cooling channels penetrating between adjacent ones of the battery cells, a cell holder to accommodate the battery cells, the cell holder including hollow protruding portions surrounding the cooling channels, respectively, and protruding away from the battery cells, and a separation member on the cell holder, the separation member including open areas opened to accommodate the hollow protruding portions inserted therein, respectively, and a shield area that closes above the vent portion.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: August 8, 2023
    Assignee: SAMSUNG SDI CO., LTD.
    Inventor: Nohyun Kwag
  • Publication number: 20230238630
    Abstract: A battery pack includes battery cells; a battery cell holder in which the battery cells are accommodated; and an exhaust pipe, wherein the battery cell holder includes a first cell holder to which upper end portions of the battery cells are assembled, a second cell holder to which lower end portions of the battery cells are assembled, and a first separation member on the first cell holder, the exhaust pipe extends from an outer sider surface of the battery cell holder, and the exhaust pipe is in fluid communication with an exhaust path between the first separation member and an outer side surface of the first cell holder.
    Type: Application
    Filed: March 27, 2023
    Publication date: July 27, 2023
    Inventor: Nohyun KWAG
  • Publication number: 20230238631
    Abstract: A battery pack includes: battery cells, each including end portions in a height direction thereof; a case accommodating the battery cells and a cooling fluid; and first and second holder plates coupled to the case to face each other along the case such that the end portions of the battery cells are insertable therethrough, an accommodation space being defined between the first and second holder plates to accommodate the cooling fluid, and the case, the battery cells, and the first and second holder plates have heights in the height direction that satisfy the condition: a height between the first and second holder plates<a height of the battery cells<a height of the case, and the battery pack further includes a potting resin on the first and second holder plates.
    Type: Application
    Filed: March 17, 2023
    Publication date: July 27, 2023
    Inventor: Nohyun Kwag
  • Publication number: 20230223614
    Abstract: A battery pack includes: battery cells each including first and second end portions that are opposite each other in a length direction; a case providing an accommodation space in which each battery cell and a cooling fluid for cooling the battery cell are located, the case including a first cover covering the first end portion of the battery cell, the first cover including a first terminal hole through which the first end portion of the battery cell is partially exposed; and first and second sealing members doubly surrounding the first terminal hole from an outside of the first terminal hole to block a cooling fluid leakage passage formed through the first terminal hole. Therefore, while improving heat-dissipating performance, a cooling fluid sealing structure may be provided to the battery pack to prevent cooling fluid leakage from the accommodation space in which the battery cells are accommodated.
    Type: Application
    Filed: March 16, 2023
    Publication date: July 13, 2023
    Inventor: Nohyun Kwag
  • Publication number: 20230207925
    Abstract: A battery pack includes: battery cells, each including first and second end portions that are opposite each other in a length direction; a case having an accommodation space in which the battery cells and a fluid to cool the battery cells are configured to be accommodated, the case including first and second covers respectively covering the first and second end portions; first and second tab plates respectively on the first and second covers and connected to the first and second end portions; a circuit board on the first tab plate; and a first lead and a second lead through which the first and second tab plates are connected to the circuit board, the first and second leads connected to a first side portion of the circuit board. An arrangement of the leads connected to electrodes of the battery cells is improved, and heat is efficiently dissipated from a switch device.
    Type: Application
    Filed: March 6, 2023
    Publication date: June 29, 2023
    Inventors: Jooyul Lee, Nohyun Kwag, Seungil Kim, Gangya Park, Jungjin Lee
  • Patent number: 11652256
    Abstract: A battery pack including a plurality of battery cells; a plurality of bus bars, each bus bar electrically connecting two different battery cells among the plurality of battery cells, and including coupling pieces at opposite ends thereof that are coupled to the two different battery cells, and a protruding connecting piece at a center of the bus bar that connects the coupling pieces at the opposite ends; and a circuit board on the plurality of bus bars and electrically connected to at least a portion of the plurality of battery cells, the circuit board having escape holes that expose the protruding connection piece of each bus bar.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: May 16, 2023
    Assignee: SAMSUNG SDI CO., LTD.
    Inventor: Nohyun Kwag
  • Patent number: 11616266
    Abstract: A battery pack including battery cells arranged in a vertically inverted pattern; a cell holder in which the battery cells are accommodated; and an exhaust pipe protruding from an outer side surface of the cell holder at a position vertically between an upper surface and a lower surface of the cell holder and through which exhaust gas from the battery cells is exhaustible.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: March 28, 2023
    Assignee: SAMSUNG SDI CO., LTD.
    Inventor: Nohyun Kwag
  • Publication number: 20230017691
    Abstract: An embodiment of the present disclosure provides a battery module including: battery cells including negative and positive electrodes on the same side; a first conductive plate provided at end portions of the battery cells and adjacent to the negative and positive electrodes, the first conductive plate including first through-holes through which the negative and positive electrodes are respectively exposed and first stepped portions which are adjacent to the first through-holes and recessed toward the battery cells; an insulative plate arranged on the first conductive plate and including second through-holes which at least partially overlap the first through-holes; a second conductive plate on the insulative plate, the second conductive plate including third through-holes which at least partially overlap the second through-holes and second stepped portions which are adjacent to the third through-holes and recessed toward the insulative plate; first connection tabs electrically connecting the positive electrod
    Type: Application
    Filed: September 26, 2022
    Publication date: January 19, 2023
    Inventor: Nohyun KWAG
  • Patent number: 11462798
    Abstract: An embodiment of the present disclosure provides a battery module including: battery cells including negative and positive electrodes on the same side; a first conductive plate provided at end portions of the battery cells and adjacent to the negative and positive electrodes, the first conductive plate including first through-holes through which the negative and positive electrodes are respectively exposed and first stepped portions which are adjacent to the first through-holes and recessed toward the battery cells; an insulative plate arranged on the first conductive plate and including second through-holes which at least partially overlap the first through-holes; a second conductive plate on the insulative plate, the second conductive plate including third through-holes which at least partially overlap the second through-holes and second stepped portions which are adjacent to the third through-holes and recessed toward the insulative plate; first connection tabs electrically connecting the positive electrod
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: October 4, 2022
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Nohyun Kwag
  • Patent number: 11424502
    Abstract: A battery pack includes: a plurality of battery cells, each including a negative electrode and a positive electrode, the positive and negative electrodes being arranged on a same side of the battery cell; a substrate arranged on the plurality of battery cells and including a first surface and a second surface located on opposite sides of the substrate, and a through hole exposing the negative electrode and the positive electrode of each of the plurality of battery cells; a first conductive plate arranged on the first surface of the substrate and including a first hole; and a second conductive plate arranged on the second surface of the substrate and including a second hole.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: August 23, 2022
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jihwan Seol, Nohyun Kwag, Sanghoon Bae, Jooyul Lee
  • Publication number: 20220247022
    Abstract: A battery pack includes: a plurality of battery cells, each including a negative electrode and a positive electrode, the positive and negative electrodes being arranged on a same side of the battery cell; a substrate arranged on the plurality of battery cells and including a first surface and a second surface located on opposite sides of the substrate, and a through hole exposing the negative electrode and the positive electrode of each of the plurality of battery cells; a first conductive plate arranged on the first surface of the substrate and including a first hole; and a second conductive plate arranged on the second surface of the substrate and including a second hole.
    Type: Application
    Filed: April 22, 2022
    Publication date: August 4, 2022
    Inventors: Jihwan SEOL, Nohyun KWAG, Sanghoon BAE, Jooyul LEE