公开(公告)号：US11777158B2

公开(公告)日：2023-10-03

申请号：US16620198

申请日：2018-12-05

Applicant: LG CHEM, LTD.

Inventor： Jae-Uk Ryu ,  Dal-Mo Kang ,  Min-Ho Kwon ,  Su-Chang Kim ,  Jeong-O Mun ,  Jae-Min Yoo ,  Ji-Su Yoon

IPC: H01M10/647 ,  H01M10/658 ,  H01M10/0525 ,  H01M50/293 ,  H01M50/233 ,  H01M50/291 ,  H01M50/211 ,  H01M50/131 ,  H01M10/653 ,  H01M50/242 ,  H01M10/6551 ,  H01M50/24 ,  H01M50/209 ,  H01M10/6555

CPC classification number: H01M10/647 ,  H01M10/0525 ,  H01M10/658 ,  H01M50/211 ,  H01M50/233 ,  H01M50/291 ,  H01M50/293 ,  H01M10/653 ,  H01M10/6551 ,  H01M10/6555 ,  H01M50/131 ,  H01M50/209 ,  H01M50/24 ,  H01M50/242 ,  H01M2220/30

Abstract: 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.

公开(公告)号：US10992011B2

公开(公告)日：2021-04-27

申请号：US16337761

申请日：2018-04-13

Applicant: LG CHEM, LTD.

Inventor： Su-Chang Kim ,  Dal-Mo Kang ,  Jeong-O Mun ,  Jae-Uk Ryu ,  Ji-Su Yoon

IPC: H01M50/502 ,  B60K6/28 ,  B60L50/64 ,  H01M50/287 ,  H01M50/213 ,  H01M50/249 ,  H01M50/271

Abstract: A battery module includes plurality of battery cells, a cell housing configured to accommodate the plurality of battery cells and a cover housing configured to cover an upper side of the cell housing. The cover housing includes an upper cover configured to form an upper portion of the cover housing, a lower cover bolt-coupled to the upper cover and disposed at the upper side of the cell housing and a bus bar unit disposed between the lower cover and the upper cover, electrically connected to electrodes of the plurality of battery cells, and sealing-coupled to at least one of the upper cover and the lower cover.

公开(公告)号：US20200083575A1

公开(公告)日：2020-03-12

申请号：US16610302

申请日：2018-09-27

Applicant: LG Chem, Ltd.

Inventor： Jae-Min Yoo ,  Dal-Mo Kang ,  Su-Chang Kim ,  Jeong-O Mun ,  Jae-Uk Ryu ,  Ji-Su Yoon

IPC: H01M10/613 ,  H01M10/643 ,  H01M2/10 ,  H01M10/653 ,  H01M10/6551

Abstract: 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.

公开(公告)号：US20200168887A1

公开(公告)日：2020-05-28

申请号：US16632776

申请日：2019-01-21

Applicant: LG Chem, Ltd.

Inventor： Jae-Min Yoo ,  Min-Ho Kwon ,  Jae-Uk Ryu ,  Dal-Mo Kang ,  Su-Chang Kim ,  Jeong-O Mun ,  Ji-Su Yoon

IPC: H01M2/34 ,  H01M2/20

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.

公开(公告)号：US11342604B2

公开(公告)日：2022-05-24

申请号：US16610302

申请日：2018-09-27

Applicant: LG Chem, Ltd.

Inventor： Jae-Min Yoo ,  Dal-Mo Kang ,  Su-Chang Kim ,  Jeong-O Mun ,  Jae-Uk Ryu ,  Ji-Su Yoon

IPC: H01M10/613 ,  H01M10/643 ,  H01M10/653 ,  H01M10/6551 ,  H01M50/213

Abstract: 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.

公开(公告)号：US11296390B2

公开(公告)日：2022-04-05

申请号：US16603450

申请日：2018-10-02

Applicant: LG CHEM, LTD.

Inventor： Jae-Uk Ryu ,  Dal-Mo Kang ,  Su-Chang Kim ,  Jeong-O Mun ,  Jae-Min Yoo ,  Ji-Su Yoon

IPC: H01M10/04 ,  H01M50/502 ,  H01M10/052 ,  H01M10/0587 ,  H01M50/107 ,  H01M50/147 ,  H01M50/155 ,  H01M50/213 ,  H01M50/543

Abstract: 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.

公开(公告)号：US10998597B2

公开(公告)日：2021-05-04

申请号：US16469411

申请日：2018-06-18

Applicant: LG CHEM, LTD.

Inventor： Jae-Uk Ryu ,  Dal-Mo Kang ,  Su-Chang Kim ,  Jeong-O Mun ,  Ji-Su Yoon

IPC: H01M50/20 ,  H01M50/502 ,  H01M50/578

Abstract: A battery module includes a pair of battery cells, each battery cell having an electrode lead, and the battery cells being stacked to face each other; a connector configured to connect the electrode leads of battery cells; and a connector breaking device disposed in a space formed between terrace portions of the battery cells and configured to be operated with a pressure applied to the connector breaking device due to swelling of at least one of the battery cells to cut off an electric connection between the connector and the electrode leads is provided. A method to interrupt an electrical connection in a battery module is also provided.

公开(公告)号：US10985433B2

公开(公告)日：2021-04-20

申请号：US16477784

申请日：2018-07-18

Applicant: LG CHEM, LTD.

Inventor： Jae-Uk Ryu ,  Dal-Mo Kang ,  Su-Chang Kim ,  Jeong-O Mun ,  Ji-Su Yoon

IPC: H01M50/574 ,  H01M50/578 ,  H01M10/647 ,  H01M50/172 ,  H01M50/183 ,  H01M50/342 ,  H01M50/538

Abstract: A battery module has a cell stack including a first battery cell and a second battery cell, which respectively have electrode leads and are stacked to face each other. A connector configured to connect the electrode leads of the pair of battery cells. A support frame provided to at least one side of the cell stack and having a pair of lead slits at which the electrode leads are drawn and an injection slit formed at a location corresponding to the connector to give a passage through which a venting gas discharged at venting of the battery cell is injected.

公开(公告)号：US11901589B2

公开(公告)日：2024-02-13

申请号：US16619849

申请日：2018-11-12

Applicant: LG CHEM, LTD.

Inventor： Jae-Min Yoo ,  Dal-Mo Kang ,  Su-Chang Kim ,  Jeong-O Mun ,  Jae-Uk Ryu ,  Ji-Su Yoon

IPC: H01M50/583 ,  H01M50/505 ,  H01M50/528 ,  H01M50/524 ,  H01M50/516 ,  H01M50/526 ,  H01M50/503 ,  H01M50/213 ,  H01M50/107 ,  H01M50/581 ,  H01M50/522 ,  H01M50/284

CPC classification number: H01M50/583 ,  H01M50/213 ,  H01M50/503 ,  H01M50/505 ,  H01M50/516 ,  H01M50/522 ,  H01M50/524 ,  H01M50/526 ,  H01M50/528 ,  H01M50/581 ,  H01M50/107 ,  H01M50/284 ,  H01M2200/103 ,  H01M2220/20

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.

公开(公告)号：US11717713B2

公开(公告)日：2023-08-08

申请号：US16464781

申请日：2018-01-03

Applicant: LG CHEM, LTD.

Inventor： Jae-Uk Ryu ,  Dal-Mo Kang ,  Su-Chang Kim ,  Jeong-O Mun ,  Ji-Su Yoon

IPC: A62C37/08 ,  A62C3/16 ,  H01M50/383 ,  H01M10/643 ,  H01M10/613 ,  H01M50/213

CPC classification number: A62C37/08 ,  A62C3/16 ,  H01M10/613 ,  H01M10/643 ,  H01M50/213 ,  H01M50/383 ,  H01M2200/00 ,  H01M2200/10

Abstract: Disclosed is a battery module, which includes: a cell holder having a plurality of battery cell insertion portions and at least one fire extinguishing cell insertion portion; a plurality of battery cells respectively located in the battery cell insertion portions; and at least one fire extinguishing cell located in the fire extinguishing cell insertion portion.