公开(公告)号：US12125962B2

公开(公告)日：2024-10-22

申请号：US17282719

申请日：2020-03-16

Applicant: LG CHEM, LTD.

Inventor： Kwan Hong Bae ,  Chan Woo Park ,  Ji Sun Chung

IPC: H01M50/528 ,  H01M10/04 ,  H01M50/533 ,  H01M4/02

CPC classification number: H01M10/0404 ,  H01M10/0422 ,  H01M10/0431 ,  H01M50/528 ,  H01M50/533 ,  H01M2004/028

Abstract: A battery manufacturing device for manufacturing a cylindrical battery by folding a positive electrode tab connected to a top cap includes a jig that makes a pendulum swing and presses a positive electrode tab; an adjusting member that forms a turning radius of the pendulum swing; and a folding knife that presses a folding part of the positive electrode tab. A method of using the battery manufacturing device is also provided.

公开(公告)号：US12183933B2

公开(公告)日：2024-12-31

申请号：US17264102

申请日：2019-08-19

Applicant: LG CHEM, LTD.

Inventor： Kwan Hong Bae ,  Chan Woo Park ,  Yeon Kyong Wang ,  Jin Seop Kwak

IPC: H01M50/186 ,  B23K26/36 ,  H01M50/107 ,  H01M50/147 ,  H01M50/167 ,  B23K101/36

Abstract: A cylindrical battery in which an electrode assembly is housed in a cylindrical can includes a cap assembly covering an upper opening of the cylindrical can; and a gasket disposed in a space between the cylindrical can and the cap assembly. The gasket is disposed on a crimping part formed by processing an end part of the cylindrical can to be bent, and an exposed part of the gasket protruded outside from a space between the cylindrical can and the cap assembly covers a trimming part of the cylindrical can.

公开(公告)号：US12176579B2

公开(公告)日：2024-12-24

申请号：US17283246

申请日：2020-05-04

Applicant: LG CHEM, LTD.

Inventor： Kwan Hong Bae ,  Chan Woo Park

IPC: H01M50/533 ,  G01N21/88 ,  G01N21/95 ,  H01M10/0585 ,  H01M50/46

Abstract: The present invention relates to an electrode assembly and an inspection method therefor, whereby tab folding and alignment of an electrode may be accurately checked. The electrode assembly, according to one embodiment, has a structure in which at least one unit cell is laminated, the unit cell having a structure of a first electrode/a separator/a second electrode/a separator/a third electrode, wherein the first electrode and the third electrode may each comprise a tab protruding toward the outer periphery of one side, and the second electrode may comprise a tab protruding toward the outer periphery of the other side facing the one side.

公开(公告)号：US11808693B2

公开(公告)日：2023-11-07

申请号：US16959664

申请日：2019-07-23

Applicant: LG CHEM, LTD.

Inventor： Yeon Kyong Wang ,  Chan Woo Park ,  Jin Seop Kwak

IPC: G01N19/04 ,  G01N3/08

CPC classification number: G01N19/04 ,  G01N3/08 ,  G01N2203/005 ,  G01N2203/0014 ,  G01N2203/0091 ,  G01N2203/02 ,  Y02E60/10

Abstract: Disclosed is a peel strength measurement apparatus using an electromagnet, the peel strength measurement apparatus including a test piece fixing unit configured to fix a test piece including at least two layers, a magnetic material attached to at least one surface of the test piece, an electromagnet configured to apply magnetic force to the magnetic material, a power supply unit configured to supply electric power to the electromagnet such that the electromagnet can generate a magnetic field, and a current controller configured to control the supply of electric power from the power supply unit to the electromagnet.