Patents by Inventor Dal Mo Kang

Dal Mo Kang 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).

  • Secondary Battery Cell Module and Assembling Method Thereof
    Publication number: 20200350610
    Abstract: A method for assembling a secondary battery cell module by using an assembling jig including a plurality of guide rods disposed on a jig plate includes: mounting a lower frame on the jig plate while the guide rods are inserted into a plurality of arranging through-holes of the lower frame; disposing a plurality of battery cells on the lower frame; mounting an upper frame on the battery cells while the guide rods are inserted into a plurality of arranging through-holes of the upper frame; fastening the upper frame and the lower frame together; and separating the assembling jig from the upper frame and the lower frame.
    Type: Application
    Filed: October 17, 2018
    Publication date: November 5, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Jae Min Yoo, Dal Mo Kang, Jeong Oh Moon, Jaeuk Ryu, Su Chang Kim, Ji Su Yoon
  • Battery Module Including Heat Shrinkable Tube
    Publication number: 20200343499
    Abstract: A battery module includes a heat-shrinkable tube serving as a module housing. The battery module includes a cell assembly having a plurality of pouch-type secondary batteries; a bus bar assembly having a bus bar frame and a bus bar mounted to an outer surface of the bus bar frame; and a heat-shrinkable tube formed to be shrunk by heat and configured so that the cell assembly is located therein, the heat-shrinkable tube being provided to surround a side surface of the cell assembly and a portion of the bus bar assembly.
    Type: Application
    Filed: July 3, 2019
    Publication date: October 29, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Jae-Min Yoo, Eun-Gyu Shin, Hee-Jun Jin, Dal-Mo Kang, Jeong-O Mun
  • Battery pack
    Patent number: 10790554
    Abstract: Disclosed is a battery pack, which allows easy assembling and exchange of electrical equipment and has an uncomplicated structure. The battery pack includes at least one battery module, the battery module including a plurality of secondary batteries, and an electrical equipment plate having a plate shape on which at least two of a battery management system (BMS), a current sensor, a relay and a fuse are mounted, the electrical equipment plate being electrically connected to the at least one battery module.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: September 29, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Young-Sop Eom, Jun-Yeob Seong, Ki-Youn Kim, Sung-Chun Yu, Dal-Mo Kang
  • Battery Module with Improved Connection Structure Between Electrode Leads and Method for Manufacturing the Same
    Publication number: 20200303710
    Abstract: Provided is a battery module in which a connection structure between electrode leads is changed to prevent a heat generation phenomenon when overcharged and to allow easy connection and disconnection between secondary batteries, and a method for manufacturing the same. The battery module according to the present disclosure includes a secondary battery stack formed by stacking a plurality of secondary batteries having electrode leads, wherein each electrode lead protrudes from the corresponding secondary battery, and each electrode lead has a bent part, and the bent parts of opposite-polarity electrode leads of neighboring secondary batteries are stacked with an elastic body interposed therebetween, and the corresponding stacked part is fastened by an insulating bolt including a washer, with the elastic body being compressed.
    Type: Application
    Filed: March 5, 2018
    Publication date: September 24, 2020
    Applicants: LG Chem, Ltd., LG Chem, Ltd.
    Inventors: Tai-Jin Jung, Dal-Mo Kang, Jeong-O Mun, Byoung-Cheon Jeong
  • Battery Module Having Structure Facilitating Series-Parallel Connections and Battery Pack Comprising Same
    Publication number: 20200295337
    Abstract: A battery module includes: a unit module stack formed by stacking a plurality of unit modules, each of which has a battery cell, a bus bar attached to an electrode lead provided to the battery cell, and a bus bar frame attached to a terrace portion of the battery cell to accommodate at least a portion of the electrode lead and the bus bar, wherein each bus bar frame includes a connector holder; and a connector fixed by the connector holders of at least two unit modules of the plurality of unit modules to contact the bus bar.
    Type: Application
    Filed: February 21, 2019
    Publication date: September 17, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Jung-Been You, Dal-Mo Kang, Jeong-O Mun, Jae-Uk Ryu, Ho-June Chi
  • Battery module with improved frame structure and frame assembly for the battery module
    Patent number: 10770765
    Abstract: Disclosed is a battery module, which includes a cell assembly composed of a plurality of cells, and a frame assembly having a bottom plate supporting the cell assembly from a lower portion, a side plate perpendicular to the bottom plate and disposed adjacent to an outermost side of the cell assembly, and a top plate covering an upper portion of the cell assembly, wherein a groove forming an external air inflow space between the side plate and the cell assembly is formed at the side plate to elongate in a length direction thereof.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: September 8, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Ji-Su Yoon, Dal-Mo Kang, Jeong-O Mun, Mi-Geum Choi, Sung-Won Seo, Hee-Jun Jin, Yoon-Koo Lee, Sang-Woo Ryu
  • LASER WELDING APPARATUS COMPRISING LASER BEAM BLOCKING BLOCK
    Publication number: 20200266416
    Abstract: Provided is a laser welding apparatus configured to weld an electrode lead of at least one secondary battery of a battery module and a main bus bar configured to electrically connect a plurality of secondary batteries to each other. The laser welding apparatus includes: a laser beam emitting unit including a laser emitting element to irradiate a laser beam to the electrode lead and the main bus bar; a pressing jig including a pressing bar configured to move in a left-and-right direction such that the electrode lead is adhered to the main bus bar; and a blocking block movable to block the laser beam generated in the laser beam emitting unit from reaching the at least one secondary battery or movable to allow the generated laser beam to pass therethrough, according to a position of the pressing bar moved in the left-and-right direction.
    Type: Application
    Filed: December 11, 2018
    Publication date: August 20, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Jung-Hoon LEE, Kyung-Mo KIM, Jin-Yong PARK, Ho-June CHI, Dal-Mo KANG, Jeong-O MUN
  • Battery Cell With Improved Safety
    Publication number: 20200227690
    Abstract: Disclosed is a battery cell, which includes: an electrode assembly; an electrode lead connected to the electrode assembly; a pouch case surrounding the electrode assembly and sealed in a state in which the electrode lead extends through the pouch case and is exposed at an outside surface of the pouch case; and a fire extinguishing unit disposed in the pouch case and configured to eject a fire extinguishing powder when a temperature of the first extinguishing unit is equal to or greater than a predetermined limit temperature.
    Type: Application
    Filed: January 3, 2018
    Publication date: July 16, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Ji-Su Yoon, Dal-Mo Kang, Su-Chang Kim, Jeong-O Mun, Jae-Uk Ryu
  • Battery module including strap-type frame, and frame assembly therefor
    Patent number: 10700319
    Abstract: The present disclosure provides a battery module including: at least one cell; and a frame assembly including a lower plate configured to support a lower end surface of the cell, a strap-shaped side plate perpendicularly extending from four corners of the lower plate and placed adjacent to an outermost side of the cell, and an upper plate coupled to an upper end of the side plate and configured to cover an upper portion of the cell.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: June 30, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Jae-Uk Ryu, Dal-Mo Kang, Ji-Su Yoon
  • Battery Module Integrated with Battery Cell Cooling and Fixing Structure, and Battery Pack Including Same
    Publication number: 20200194853
    Abstract: A battery module includes a plurality of cylindrical battery cells and a first fixing frame configured to support the cylindrical battery cells so that the cylindrical battery cells are oriented vertically. The first fixing frame includes cell bottom holders provided at predetermined locations on a plate having a tray shape so that the cylindrical battery cells can be inserted therein in a vertical orientation; and perforation holes formed between the cell bottom holders so as to be open in a vertical direction, wherein the battery module comprises a thermally conductive adhesive solution introduced through the perforation holes from a lower portion of the first fixing frame to an upper portion thereof.
    Type: Application
    Filed: September 27, 2018
    Publication date: June 18, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Jae-Min Yoo, Dal-Mo Kang, Su-Chang Kim, Jeong-O Mun, Jae-Uk Ryu, Ji-Su Yoon
  • Battery Module, Battery Pack Including Battery Module, and Vehicle Including Battery Pack
    Publication number: 20200194851
    Abstract: A battery module includes: a plurality of battery cells; a top plate configured to cover an upper side of the battery cells; a bottom plate configured to cover a lower side of the battery cells; a pair of side plates configured to cover both side surfaces of the battery cells; a bus bar unit configured to cover a front side and a rear side of the battery cells, the bus bar being electrically connected to the battery cells; and a pair of heatsinks each having a coolant injection portion and a coolant discharge portion protruding out of the battery module. The pair of heat sinks are provided at the upper side and the lower side of the battery cells, respectively.
    Type: Application
    Filed: February 18, 2019
    Publication date: June 18, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Sung-Won Seo, Dal-Mo Kang, Jeong-O Mun, Yoon-Koo Lee, Alexander Eichhorn, Andreas Track
  • BATTERY PACK HAVING CRASH BEAM AND DRAIN STRUCTURE
    Publication number: 20200185672
    Abstract: A battery pack including a plurality of battery modules; a tray including an interior space where the plurality of battery modules are positioned; a plurality of beam frames traversing an upper surface of the tray to partition spaces where the plurality of battery modules are positioned; and a plurality of heatsinks having a hollow structure through which a coolant flows, wherein each heatsink is coupled to a part of a respective one of the plurality of beam frames and faces a side surface of a respective one of the plurality of battery modules, at least one drainage hole is provided at the tray and at least one drainage hole is provided at the beam frame, and the at least one drainage hole of the tray and the at least one drainage hole of the beam frame are provided below the heatsink.
    Type: Application
    Filed: March 26, 2018
    Publication date: June 11, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Sung-Won SEO, Jeong-O MUN, Yoon-Koo LEE, Ho-June CHI, Dal-Mo KANG
  • Battery Module Having Improved Cooling Structure
    Publication number: 20200168864
    Abstract: A battery module includes a cell stack defined by a stack of a plurality of battery cells; and a module housing configured to accommodate the cell stack. The module housing has a lower housing, a pair of side housings, a pair of front and rear housings, and an upper housing. The lower housing may include a base plate configured to cover a lower surface of the cell stack; a spacer interposed between the cell stack and the base plate to partially cover the lower surface of the cell stack; a supply tube connected to the spacer to supply a cooling medium through the inside of the spacer to an empty space defined between the cell stack and the base plate; and a discharge tube connected to the spacer to discharge the cooling medium from the empty space and the spacer.
    Type: Application
    Filed: December 5, 2018
    Publication date: May 28, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Sung-Won Seo, Dal-Mo Kang, Jeong-O Mun, Yoon-Koo Lee
  • BUS BAR INCLUDING CURRENT BREAKING PORTION AND BATTERY MODULE INCLUDING THE SAME
    Publication number: 20200168887
    Abstract: A bus bar capable of effectively securing safety of a battery module when an overcurrent is generated includes: a main body portion that includes a first metal, has a stepped structure, in which an outer surface of the main body portion in an outward direction of the battery module is recessed in an inward direction, formed in one region, and is configured to be electrically connected to at least one secondary battery; a current breaking portion that is inserted into a space formed by the stepped structure and includes a second metal having a melting point relatively lower than a melting point of the first metal; and a covering member configured to surround at least a part of an outer surface of the current breaking portion. A battery module including the bus bar is also provided.
    Type: Application
    Filed: January 21, 2019
    Publication date: May 28, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Jae-Min Yoo, Min-Ho Kwon, Jae-Uk Ryu, Dal-Mo Kang, Su-Chang Kim, Jeong-O Mun, Ji-Su Yoon
  • CYLINDRICAL SECONDARY BATTERY MODULE
    Publication number: 20200161598
    Abstract: A cylindrical secondary battery module including a plurality of cylindrical secondary battery cells respectively having a battery case in which an electrode assembly and an electrolyte are accommodated; a cell frame at which the plurality of cylindrical secondary battery cells are disposed; and a bus bar electrically connected to the plurality of cylindrical secondary battery cells and having a fusing portion, wherein the bus bar has a plurality of layers made of different materials from each other.
    Type: Application
    Filed: November 12, 2018
    Publication date: May 21, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Jae-Min YOO, Dal-Mo KANG, Su-Chang KIM, Jeong-O MUN, Jae-Uk RYU, Ji-Su YOON
  • APPARATUS FOR PREDICTING DEFORMATION OF BATTERY MODULE
    Publication number: 20200158596
    Abstract: An apparatus for predicting a degree of deformation of a battery module, caused by swelling of a secondary battery. The battery module includes at least one secondary battery in a module case. The apparatus includes a cell evaluation module configured to derive a relationship between a thickness change amount and a reaction force for a single secondary battery; a case evaluation module configured to derive a relationship between a load applied to the module case and a width change amount of the module case; and a prediction module configured to predict a deformation amount of the battery module by using the relationship between the thickness change amount and the reaction force of the secondary battery, derived by the cell evaluation module, and the relationship between the load and the width change amount of the module case, derived by the case evaluation module.
    Type: Application
    Filed: January 23, 2018
    Publication date: May 21, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Dong-Yeon Kim, Jin-Hak Kong, Yong-Seok Choi, Sung-Won Seo, Yoon-Koo Lee, Dal-Mo Kang, Jeong-O Mun
  • Heat sink with two or more separated channels
    Patent number: 10637113
    Abstract: The present disclosure discloses a heat sink with two or more separated channels. The heat sink according to the present disclosure includes a cooling channel through which a refrigerant passes to cool a secondary battery by an indirect cooling method, the secondary battery including a cell assembly in which at least two unit cells are stacked, each unit cell including a positive electrode plate, a separator, and a negative electrode plate, and a plurality of positive and negative electrode tabs protruding from the positive and negative electrode plates of each unit cell is electrically connected to positive and negative leads, respectively, wherein the cooling channel has two or more separated channels. According to the present disclosure, provision of a cooling fin having a uniform cooling effect is enabled.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: April 28, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Min-Jung Kim, Seung-Hun Jung, Dal-Mo Kang
  • Battery module of improved safety
    Patent number: 10632848
    Abstract: Disclosed herein is a battery module configured in a structure in which a plurality of battery cells or unit modules (‘unit cells’) are stacked, and a heat sink is mounted to electrical connection regions between the unit cells and/or to outsides of battery module connection members connected to the electrical connection regions.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: April 28, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Jin Kyu Lee, Jaeseong Yeo, Yongshik Shin, Hee Soo Yoon, BumHyun Lee, Dal Mo Kang
  • CYLINDRICAL BATTERY CELL ASSEMBLY WITH IMPROVED SPACE UTILIZATION AND SAFETY, AND BATTERY MODULE COMPRISING SAME
    Publication number: 20200127249
    Abstract: A cylindrical battery cell assembly which includes a plurality of cylindrical battery cells arranged so that the cylindrical battery cells having the same polarity face in the same direction, a cell holder configured to confine the cylindrical battery cells as a bundle unit, a first electrode connection member located at an upper portion of the cell holder and a second electrode connection member located at the bottom ends of the cylindrical battery cells. The second electrode connection member includes a second connection portion located at a lower portion of the cell holder and disposed to contact the second electrode terminals. A rod-shaped second terminal portion extends vertically from the second connection portion through an empty space formed inside the cell holder so that one end of the rod-shaped second terminal portion is disposed above the cell holder.
    Type: Application
    Filed: December 5, 2018
    Publication date: April 23, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Ji-Su YOON, Su-Chang KIM, Jae-Min YOO, Jae-Uk RYU, Dal-Mo KANG, Jeong-O MUN
  • Battery module
    Patent number: 10629875
    Abstract: Disclosed is a battery module having a simple structure, facilitating reduction in weight and size, and saving manufacturing costs while securing an efficient cooling capability.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: April 21, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Mi-Geum Choi, Jeong-O Mun, Dal-Mo Kang, Eun-Gyu Shin