公开(公告)号：US20240145729A1

公开(公告)日：2024-05-02

申请号：US18279681

申请日：2022-11-22

Applicant: LG Energy Solution, Ltd.

Inventor： Hyeok Jeong ,  Seokhoon Jang ,  Su Taek Jung ,  Won Pill Hwang ,  Sangho Bae

IPC: H01M4/66 ,  H01M4/04 ,  H01M4/36

CPC classification number: H01M4/667 ,  H01M4/0404 ,  H01M4/0435 ,  H01M4/366

Abstract: The present disclosure provides a single-sided electrode comprising: an electrode current collector; an active material layer located on one surface of the electrode current collector; and a coating layer located on the other surface of the electrode current collector, wherein a thickness of the coating layer is smaller than a thickness of the active material layer.

公开(公告)号：US20230207855A1

公开(公告)日：2023-06-29

申请号：US17925977

申请日：2021-05-17

Applicant: LG Energy Solution, Ltd.

Inventor： Won Pill Hwang ,  Sang Woo Lee ,  Su Taek Jung ,  Sang Ho Bae ,  Min Cheol Choi ,  Jin Gon Kim ,  Yong Jun Lee

IPC: H01M10/04 ,  H01M50/552 ,  H01M50/588 ,  H01M50/59

CPC classification number: H01M10/0404 ,  H01M50/552 ,  H01M50/588 ,  H01M50/59

Abstract: A method for manufacturing a secondary battery includes: an accommodating process of accommodating an electrode assembly in a battery case so that an electrode lead connected to the electrode assembly protrudes to both sides of the outside of the battery case; a sealing process of sealing an outer circumferential surface of the battery case after the accommodating process; a coupling process of coupling a coupling clip to the electrode lead after the sealing process; and a transfer process of transferring the cell to a position for a next process after a gripper grips the coupling clip after the coupling process.

公开(公告)号：US12208463B2

公开(公告)日：2025-01-28

申请号：US17924235

申请日：2021-08-11

Applicant: LG Energy Solution, Ltd.

Inventor： Joo Young Chung ,  Won Pill Hwang ,  Sang Ho Bae ,  Su Taek Jung

IPC: B23K20/00 ,  B23K20/10 ,  H01M50/183

Abstract: The present invention provides a sealing process for a secondary battery of the present invention, which thermally fuses and seals a sealing portion that extends along an edge surface of a battery case, the sealing process comprising: an arrangement operation of disposing the sealing portion of the battery case between an anvil and a horn; a first region-fixing operation of pressing and fixing a first region of the sealing portion through the anvil and the horn; and a first region-primary sealing operation of applying an ultrasonic wave to the first region of the sealing portion through the horn at a set frequency and a set amplitude for a set time, thereby thermally fusing the first region of the sealing portion.

公开(公告)号：US20230343984A1

公开(公告)日：2023-10-26

申请号：US17917351

申请日：2021-06-10

Applicant: LG Energy Solution, Ltd.

Inventor： Sang Ho Bae ,  Joo Young Chung ,  Tae Jong Kim ,  Sang Woo Lee ,  Su Taek Jung ,  Won Pill Hwang ,  Min Cheol Choi ,  Jin Gon Kim ,  Yong Jun Lee

IPC: H01M10/04 ,  H01M50/406 ,  B26D7/08

CPC classification number: H01M10/0404 ,  H01M50/406 ,  H01M10/0468 ,  B26D7/086

Abstract: An apparatus for manufacturing a secondary battery is provided. The apparatus comprises a separation sheet supply device configured to supply two separation sheets configured to be disposed vertically. An electrode supply device is configured to supply electrodes to be disposed between the two separation sheets and on a top surface of one of the separation sheets. The one of the separation sheets is disposed at an upper side. A lamination device is configured to bond the two separation sheets and the electrodes to each other. An ultrasonic cutting device is configured to bond surfaces of the two separation sheets to each other and simultaneously cut a bonding surface of the two separation sheets.

公开(公告)号：US20230318119A1

公开(公告)日：2023-10-05

申请号：US18024540

申请日：2021-08-23

Applicant: LG Energy Solution, Ltd.

Inventor： Won Pill Hwang ,  Seung Ho Na ,  Sang Ho Bae ,  Kwan Bo Lee ,  Yoon Beom Lee ,  Shin Chul Kim ,  Su Taek Jung ,  Chang Min Han

IPC: H01M50/325 ,  H01M50/186 ,  H01M50/54 ,  H01M50/126 ,  H01M10/04 ,  H01M50/105

CPC classification number: H01M50/325 ,  H01M50/186 ,  H01M50/54 ,  H01M50/126 ,  H01M10/0481 ,  H01M10/049 ,  H01M50/105

Abstract: A secondary battery includes: an electrode assembly; an electrode lead; a battery case with an accommodation portion for the electrode assembly and a sealing portion sealing the accommodation portion; and a lead film. The sealing portion includes a connection-sealing region connected to the accommodation portion, a front end-sealing region, and a reinforcement-sealing region therebetween. The reinforcement-sealing region includes a compressed surface, provided in the sealing portion between the connection-sealing region and the front end-sealing region and recessed into the sealing portion, and raised surfaces, provided in the sealing portion between the connection-sealing region and the compressed surface and between the front end-sealing region and the compressed surface and each of which is formed thicker than the compressed surface. The battery case has a resin layer, a metal layer, and an insulating layer. The resin layer of the raised surface is formed thicker than the resin layer of the compressed surface.

公开(公告)号：US20240322354A1

公开(公告)日：2024-09-26

申请号：US18580060

申请日：2023-04-17

Applicant: LG Energy Solution, Ltd.

Inventor： Won Pill Hwang ,  Mincheol Choi ,  Shin Chul Kim ,  Hyeok Jeong ,  Sangho Bae

IPC: H01M50/342 ,  H01M50/105 ,  H01M50/186 ,  H01M50/193

CPC classification number: H01M50/3425 ,  H01M50/105 ,  H01M50/186 ,  H01M50/193

Abstract: The present disclosure relates to a battery cell and a manufacturing method thereof. The battery cell according to one embodiment of the present disclosure includes an electrode assembly including a cathode, an anode and a separator; and a battery case including a sealing portion that houses the electrode assembly and seals an outer periphery of the electrode assembly, wherein the sealing portion includes a first area, and a second area excluding the first area, and wherein the first area is an area where the crystallinity of the battery case is higher than that of the second area.

公开(公告)号：US20230173606A1

公开(公告)日：2023-06-08

申请号：US17924235

申请日：2021-08-11

Applicant: LG Energy Solution, Ltd.

Inventor： Joo Young Chung ,  Won Pill Hwang ,  Sang Ho Bae ,  Su Taek Jung

IPC: B23K20/10 ,  H01M50/183

CPC classification number: B23K20/10 ,  H01M50/183

Abstract: The present invention provides a sealing process for a secondary battery of the present invention, which thermally fuses and seals a sealing portion that extends along an edge surface of a battery case, the sealing process comprising: an arrangement operation of disposing the sealing portion of the battery case between an anvil and a horn; a first region-fixing operation of pressing and fixing a first region of the sealing portion through the anvil and the horn; and a first region-primary sealing operation of applying an ultrasonic wave to the first region of the sealing portion through the horn at a set frequency and a set amplitude for a set time, thereby thermally fusing the first region of the sealing portion.

公开(公告)号：US20230133623A1

公开(公告)日：2023-05-04

申请号：US17918761

申请日：2021-04-26

Applicant: LG Energy Solution, Ltd.

Inventor： Won Pill Hwang ,  Sang Woo Lee ,  Su Taek Jung ,  Sang Ho Bae ,  Min Cheol Choi ,  Jin Gon Kim ,  Yong Jun Lee

IPC: H01M50/124 ,  H01M50/105

Abstract: A method for repairing a secondary battery according to an embodiment of the present invention for solving the above problems includes: a step, in which cracks are formed in an outer surface of a battery case of the pouch-type secondary battery; a step of locally applying a metal solution to the cracks; and a step of drying the metal solution to form a coating part.