Patents by Inventor Jae Min Yoo
Jae Min Yoo 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).
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Publication number: 20220021090Abstract: A battery pack includes a plurality of battery modules arranged along at least one direction, a resistor connected to an abnormal battery module that operates abnormally among the battery modules to absorb energy, an event detector provided to detect the abnormal battery module, a switch to connect or disconnect each of the battery modules to/from the resistor to selectively form a closed circuit, and a controller to receive information from the event detector and control the switch to form a current path between the abnormal battery module and the resistor.Type: ApplicationFiled: June 4, 2020Publication date: January 20, 2022Applicant: LG ENERGY SOLUTION, LTD.Inventors: Eun-Gyu SHIN, Jeong-O MUN, Jae-Min YOO, Yoon-Koo LEE
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Publication number: 20220021060Abstract: A battery module reduces the risk of secondary ignition or explosion and increases cooling efficiency. The battery module includes a cell assembly having a plurality of secondary batteries stacked on each other in a front and rear direction; and a base plate configured such that the plurality of secondary batteries of the cell assembly are mounted to an upper portion thereof, the base plate including at least one gas discharge passage having a sidewall elongated in the front and rear direction to communicate with the outside and an open portion formed by a top of the sidewall in one direction and at least one anti-inflammatory mesh sheet configured to cover the open portion.Type: ApplicationFiled: May 27, 2020Publication date: January 20, 2022Applicant: LG ENERGY SOLUTION, LTD.Inventors: Jae-Min YOO, Jeong-O MUN, Eun-Gyu SHIN, Yoon-Koo LEE
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Publication number: 20220006139Abstract: A battery rack includes a plurality of battery modules stacked on each other in a vertical direction; a rack case configured to accommodate the plurality of battery modules; and at least one firewall provided to at least one of both side surfaces of the rack case to prevent flame and heat from propagating toward an adjacent battery rack when a fire occurs.Type: ApplicationFiled: May 12, 2020Publication date: January 6, 2022Applicant: LG ENERGY SOLUTION, LTD.Inventors: Jae-Min YOO, Jeong-O MUN, Eun-Gyu SHIN, Yoon-Koo LEE
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Patent number: 11139543Abstract: 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: GrantFiled: January 21, 2019Date of Patent: October 5, 2021Inventors: Jae-Min Yoo, Min-Ho Kwon, Jae-Uk Ryu, Dal-Mo Kang, Su-Chang Kim, Jeong-O Mun, Ji-Su Yoon
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Patent number: 11139529Abstract: 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: GrantFiled: December 5, 2018Date of Patent: October 5, 2021Assignee: LG CHEM, LTD.Inventors: Ji-Su Yoon, Su-Chang Kim, Jae-Min Yoo, Jae-Uk Ryu, Dal-Mo Kang, Jeong-O Mun
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Publication number: 20210218087Abstract: A battery module reduces the risk of secondary ignition or explosion and increases durability against external impacts. The battery module includes a plurality of secondary batteries respectively having a gas venting portion for discharging a gas generated therein to the outside at a predetermined pressure and arranged in a front and rear direction in two rows; and a cooling member including a body portion interposed between two rows of the plurality of secondary batteries and having a size corresponding to left and right sides of the plurality of secondary batteries, and a gas discharge portion provided to at least one of an upper portion and a lower portion of the body portion and having a gas discharge passage elongated from a front end to a rear end of the body portion.Type: ApplicationFiled: May 27, 2020Publication date: July 15, 2021Applicant: LG CHEM, LTD.Inventors: Jae-Min YOO, Jeong-O MUN, Eun-Gyu SHIN, Yoon-Koo LEE
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Publication number: 20210043907Abstract: A battery pack includes a battery cell and a bus bar electrically connected to the battery cell, wherein the bus bar includes a rupture portion configured to melt due to electric resistance heat generated by overcurrent and thus to rupture, the rupture portion having a plurality of through-holes therein.Type: ApplicationFiled: December 27, 2018Publication date: February 11, 2021Applicant: LG Chem, Ltd.Inventors: Jae Uk Ryu, Dal Mo Kang, Jeong Oh Moon, Jae Min Yoo, Min Ho Kwon
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Publication number: 20210043910Abstract: A battery cell includes an electrode assembly, a pair of electrode leads electrically connected to the electrode assembly, a battery case configured to accommodate the pair of electrode leads such that the pair of electrode leads protrude at least partially in a front and rear direction of the battery cell, the battery case having an accommodation space formed to accommodate the electrode assembly, and a taping unit configured to integrally cover both side surfaces and upper and lower surfaces of the battery case.Type: ApplicationFiled: January 20, 2020Publication date: February 11, 2021Applicant: LG CHEM, LTD.Inventors: Eun-Gyu SHIN, Jae-Min YOO, Yoon-Koo LEE, Dal-Mo KANG, Jeong-O MUN
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Publication number: 20200395587Abstract: A cylindrical battery cell including a first electrode terminal and a second electrode terminal having different polarities: an electrode assembly in which a positive electrode, a negative electrode and a separator interposed between the positive electrode and the negative electrode are wound; a battery case configured to include the electrode assembly therein in a state of being impregnated with an electrolytic solution; a cap assembly mounted to a top end of the battery case; and a connection cap including a cap housing loaded on the battery case and the cap assembly and having an insulating material, and a first connection plate and a second connection plate placed on the cap housing and electrically connected to the first electrode terminal and the second electrode terminal, respectively.Type: ApplicationFiled: October 2, 2018Publication date: December 17, 2020Applicant: LG CHEM, LTD.Inventors: Jae-Uk RYU, Dal-Mo KANG, Su-Chang KIM, Jeong-O MUN, Jae-Min YOO, Ji-Su YOON
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Publication number: 20200388805Abstract: A battery module having excellent cooling efficiency and allowing easy recycling of inner components at disposal applies a heat-shrinkable tube serving as a module housing and a heatsink to the battery module. The battery module includes a cell assembly including a plurality of pouch-type secondary batteries having electrode leads formed to protrude in a front and rear direction and stacked on each other in a left and right direction; a heatsink located to contact an outer surface of the cell assembly and having a coolant flow path for allowing a coolant to move therein; and a heat-shrinkable tube having a tubular shape with a hollow structure in which the cell assembly and the heatsink are located, the heat-shrinkable tube being thermally shrunken so that the cell assembly and the heatsink are in contact with each other.Type: ApplicationFiled: August 26, 2019Publication date: December 10, 2020Applicant: LG Chem, Ltd.Inventors: Jae-Min Yoo, Eun-Gyu Shin, Jeong-O Mun, Yoon-Koo Lee
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Publication number: 20200381684Abstract: A battery module which includes a battery cell stack in which a plurality of battery cells are stacked; and a housing configured to accommodate the battery cell stack, wherein a disassembling guide for disassembling the housing is formed at the housing.Type: ApplicationFiled: February 20, 2019Publication date: December 3, 2020Applicant: LG CHEM, LTD.Inventors: Hee-Jun JIN, Eun-Gyu SHIN, Jae-Min YOO, Jeong-O MUN, Ho-June CHI
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Publication number: 20200350610Abstract: 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: ApplicationFiled: October 17, 2018Publication date: November 5, 2020Applicant: LG Chem, Ltd.Inventors: Jae Min Yoo, Dal Mo Kang, Jeong Oh Moon, Jaeuk Ryu, Su Chang Kim, Ji Su Yoon
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Publication number: 20200343499Abstract: 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: ApplicationFiled: July 3, 2019Publication date: October 29, 2020Applicant: LG Chem, Ltd.Inventors: Jae-Min Yoo, Eun-Gyu Shin, Hee-Jun Jin, Dal-Mo Kang, Jeong-O Mun
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Publication number: 20200194853Abstract: 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: ApplicationFiled: September 27, 2018Publication date: June 18, 2020Applicant: LG Chem, Ltd.Inventors: Jae-Min Yoo, Dal-Mo Kang, Su-Chang Kim, Jeong-O Mun, Jae-Uk Ryu, Ji-Su Yoon
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Publication number: 20200168887Abstract: 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: ApplicationFiled: January 21, 2019Publication date: May 28, 2020Applicant: 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
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Publication number: 20200161598Abstract: 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: ApplicationFiled: November 12, 2018Publication date: May 21, 2020Applicant: LG CHEM, LTD.Inventors: Jae-Min YOO, Dal-Mo KANG, Su-Chang KIM, Jeong-O MUN, Jae-Uk RYU, Ji-Su YOON
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Publication number: 20200127249Abstract: 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: ApplicationFiled: December 5, 2018Publication date: April 23, 2020Applicant: LG CHEM, LTD.Inventors: Ji-Su YOON, Su-Chang KIM, Jae-Min YOO, Jae-Uk RYU, Dal-Mo KANG, Jeong-O MUN
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Publication number: 20200099114Abstract: A battery module, which includes: a battery cell stack in which a plurality of battery cells are stacked; a flame spread prevention member configured to cover at least a portion of each battery cell; and a case configured to accommodate the battery cell stack covered by the flame spread prevention member.Type: ApplicationFiled: December 5, 2018Publication date: March 26, 2020Applicant: LG CHEM, LTD.Inventors: Jae-Uk RYU, Dal-Mo KANG, Min-Ho KWON, Su-Chang KIM, Jeong-O MUN, Jae-Min YOO, Ji-Su YOON
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Publication number: 20200083575Abstract: A battery module includes a plurality of can-type secondary batteries; a cooling tray formed in a container shape and having an accommodation space capable of accommodating the plurality of can-type secondary batteries; a heatsink having a hollow structure in which a coolant flows, the heatsink being disposed in contact with an outer surface of the cooling tray; and a thermally conductive adhesive solution filled in the accommodation space of the cooling tray, wherein the plurality of can-type secondary batteries are arranged such that a lower portion thereof is immersed in the thermally conductive adhesive solution.Type: ApplicationFiled: September 27, 2018Publication date: March 12, 2020Applicant: LG Chem, Ltd.Inventors: Jae-Min Yoo, Dal-Mo Kang, Su-Chang Kim, Jeong-O Mun, Jae-Uk Ryu, Ji-Su Yoon
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Publication number: 20200035967Abstract: A cylindrical secondary battery module includes: 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 lid coupled to the cell frame and having a flame outlet. The cell frame includes: a plurality of plate members bent and coupled to intersect each other; and a space formed between the plurality of plate members so that the cylindrical secondary battery cells are disposed therein.Type: ApplicationFiled: July 24, 2018Publication date: January 30, 2020Applicant: LG CHEM, LTD.Inventors: Ji-Su YOON, Su-Chang KIM, Jae-Min YOO, Jae-Uk RYU, Dal-Mo KANG, Jeong-O MUN