公开(公告)号：US12057552B2

公开(公告)日：2024-08-06

申请号：US16633428

申请日：2019-01-29

Applicant: LG CHEM, LTD.

Inventor： In Tae Chun ,  Jae Huoung Son ,  Chang Min Han ,  Ik Soo Chae ,  Chang Bum Ahn

IPC: H01M10/0585 ,  H01M10/0525 ,  H01M10/44

CPC classification number: H01M10/0585 ,  H01M10/0525 ,  H01M10/446

Abstract: A method for manufacturing a secondary battery capable of preventing the phenomenon of bending of an electrode stack generated in an activation step, and a secondary battery produced thereby are provided. The method of manufacturing a lithium secondary battery includes (a) a step of manufacturing a lithium secondary battery by embedding an electrode stack together with an electrolyte in a battery case, (b) a step of aging the battery at room temperature, (c) a hot press step of applying pressure and heat to the lithium secondary battery, and (d) a step of charging the battery, in which a stack surface of the electrode stack is laminated by the hot press step. In the process of activating the secondary battery in which the electrolyte is injected by performing a hot press step, it is possible laminate the stack surface of the electrode stack before the charging process.

公开(公告)号：US11621445B2

公开(公告)日：2023-04-04

申请号：US16633498

申请日：2019-01-04

Applicant: LG CHEM, LTD.

Inventor： In Tae Chun ,  Jae Huoung Son ,  Chang Min Han ,  Ik Soo Chae ,  Chang Bum Ahn

IPC: H01M10/44 ,  H02J7/00 ,  H01M10/052

Abstract: A charge/discharge device for an activation process of a secondary battery including an accommodation structure having a plurality of accommodation spaces and provided with a wiring duct at one side of each of the accommodation spaces, each of a plurality of charge/discharge boxes installed in each of the plurality of accommodation spaces, wires wired in a space inside the wiring duct, and an exhaust fan installed on an inner wall of the wiring duct, in which the exhaust fan is installed on the inner wall of the wiring duct adjacent to one side of the accommodation space, and the wires are wired to pass an external side of the exhaust fan is provided. A heat insulation panel may be additionally installed together with the exhaust fan in the wiring duct.

公开(公告)号：US11196034B2

公开(公告)日：2021-12-07

申请号：US16330224

申请日：2018-07-16

Applicant: LG Chem, Ltd.

Inventor： Sang Jin Woo ,  Young Ho Jeon ,  Sin Young Park ,  Tae Won Kang ,  In Tae Chun ,  Ji Soo Park ,  Dong Hyeuk Park ,  Yoon Bong Wi

IPC: H01M4/04 ,  F26B3/28 ,  F26B13/06 ,  H05B3/00 ,  H01M10/04 ,  H01J61/16 ,  H05B3/03 ,  F26B3/30

Abstract: The present invention relates to an electrode heating device that dries an electrode. The electrode heating device comprises a heating body having a drying space through which the electrode passes, and a heating member that directly heats and dries a surface of the electrode that passes through the drying space to remove moisture from the electrode.

公开(公告)号：US20190229324A1

公开(公告)日：2019-07-25

申请号：US16330224

申请日：2018-07-16

Applicant: LG Chem, Ltd.

Inventor： Sang Jin Woo ,  Young Ho Jeon ,  Sin Young Park ,  Tae Won Kang ,  In Tae Chun ,  Ji Soo Park ,  Dong Hyeuk Park ,  Yoon Bong Wi

IPC: H01M4/04 ,  H01M10/04 ,  F26B3/30 ,  H05B3/03 ,  H01J61/16

Abstract: The present invention relates to an electrode heating device that dries an electrode. The electrode heating device comprises a heating body having a drying space through which the electrode passes, and a heating member that directly heats and dries a surface of the electrode that passes through the drying space to remove moisture from the electrode.