公开(公告)号：US20180123163A1

公开(公告)日：2018-05-03

申请号：US15575653

申请日：2016-07-21

Applicant: LG Chem, Ltd.

Inventor： Pil Kyu Park ,  Joo Hwan Sung ,  Jung Koo Kang ,  Je Jun Lee ,  Han Gab Song ,  Yeo Min Yoon

IPC: H01M10/052 ,  H01M2/04 ,  H01M2/12

Abstract: The present invention relates to a cap assembly formed of a composite of cap assembly ceramic for the cylindrical battery and mounted on a top end portion of the cylindrical secondary battery in which an electrode assembly is placed in a cylindrical can, which includes a safety vent having a predetermined notch configured to be ruptured by high pressure gas generated in the battery, a current interrupt device coupled to a lower end of the safety vent and blocking a current when an internal pressure of the battery rises, and a gasket for the current interrupt device surrounding an outer circumferential surface of the current interrupt device, wherein the gasket for the current interrupt device comprises a polymer resin having a melting point of 250° C. or more and a heat deflection temperature (HDT) of 200° C. or more, and a cylindrical secondary battery including the same.

公开(公告)号：US10818959B2

公开(公告)日：2020-10-27

申请号：US15575653

申请日：2016-07-21

Applicant: LG Chem, Ltd.

Inventor： Pil Kyu Park ,  Joo Hwan Sung ,  Jung Koo Kang ,  Je Jun Lee ,  Han Gab Song ,  Yeo Min Yoon

IPC: H01M2/08 ,  H01M2/34 ,  H01M2/04 ,  H01M2/12 ,  H01M10/052 ,  H01M10/0525

Abstract: The present invention relates to a cap assembly formed of a composite of cap assembly ceramic for the cylindrical battery and mounted on a top end portion of the cylindrical secondary battery in which an electrode assembly is placed in a cylindrical can, which includes a safety vent having a predetermined notch configured to be ruptured by high pressure gas generated in the battery, a current interrupt device coupled to a lower end of the safety vent and blocking a current when an internal pressure of the battery rises, and a gasket for the current interrupt device surrounding an outer circumferential surface of the current interrupt device, wherein the gasket for the current interrupt device comprises a polymer resin having a melting point of 250° C. or more and a heat deflection temperature (HDT) of 200° C. or more, and a cylindrical secondary battery including the same.

公开(公告)号：US11730993B2

公开(公告)日：2023-08-22

申请号：US17049483

申请日：2019-12-24

Applicant: LG CHEM, LTD. ,  KONKUK UNIVERSITY INDUSTRIAL COOPERATION CORP

Inventor： Yeo Min Yoon ,  Ji Hyun Choi ,  Bum Young Jung ,  Jeong Ho Ha ,  Ki Jae Kim ,  Yong Keon Ahn ,  Kyu Bin Lee ,  Yustian Suharto

IPC: A62D1/00 ,  B01J13/04 ,  H01M10/42

CPC classification number: A62D1/0021 ,  B01J13/046 ,  H01M10/4235

Abstract: The present invention relates to an extinguishing composition and comprises an extinguishing material and a capsule containing the extinguishing material, and the extinguishing material comprises calcium bromide (CaBr2).

公开(公告)号：US11945040B2

公开(公告)日：2024-04-02

申请号：US16981568

申请日：2019-10-30

Applicant: LG CHEM, LTD.

Inventor： Jaewoong Jung ,  Yeo Min Yoon ,  Kyungwook Cho

IPC: B23K11/30 ,  B23K11/00 ,  B23K11/11 ,  B23K11/36 ,  B23K101/36 ,  H01M10/04 ,  H01M50/10 ,  H01M50/107 ,  H01M50/531

CPC classification number: B23K11/3018 ,  B23K11/002 ,  B23K11/115 ,  B23K11/36 ,  H01M10/0422 ,  H01M10/0431 ,  H01M50/10 ,  H01M50/107 ,  H01M50/531 ,  B23K2101/36

Abstract: The present invention relates to an electric resistance welder that includes a compressor, a welding holder, and a welding rod, wherein air compressed by the compressor may be introduced into the welding rod through the welding holder and is then discharged through air outlets formed in the welding rod.

公开(公告)号：US10985430B2

公开(公告)日：2021-04-20

申请号：US16088548

申请日：2017-12-22

Applicant: LG CHEM, LTD.

Inventor： Yeo Min Yoon ,  Jae Woong Kim ,  Hyoung Kwon Kim ,  Joo Hwan Sung ,  Ik Jong Lee

IPC: B23K26/082 ,  H01M50/531 ,  B23K26/03 ,  B23K26/22 ,  B23K37/04 ,  B23K101/38

Abstract: The present disclosure provides a method that includes forming a tab arrangement by vertically arranging the electrode tabs whereby at least parts of the electrode tabs overlap each other; irradiating light to at least two side surfaces among side surfaces of the tab arrangement excluding surfaces on which the electrode tabs overlap and surfaces facing the overlapped surfaces; scanning a planar shape of a step on which the electrode tabs do not overlap each other using light reflected from an end portion of each of the electrode tabs; scanning only an overlapped portion of the electrode tabs excluding the step based on the scanned result; setting a welding range within the overlapped portion; and performing welding only within the welding range.