公开(公告)号：US20230029709A1

公开(公告)日：2023-02-02

申请号：US17789944

申请日：2021-11-22

申请人： LG ENERGY SOLUTION, LTD.

发明人： Suk Hyun HONG ,  Joon Sung BAE ,  Eui Kyung LEE ,  Sang Jih KIM ,  Beom Koon LEE ,  Dong Hun BAE

IPC分类号： H01M10/04 ,  H01M10/44 ,  H02J7/00

摘要： A device for charging and discharging a battery cell capable of suppressing a swelling phenomenon of a terrace portion of a battery cell during a formation process of the battery cell includes first and second plates configured to receive a battery cell therebetween and to press two surfaces of the battery cell; first and second grippers connected to the first and second plates, respectively, the first and second grippers protrude to face each other and configured to contact a lead region of the battery cell; and first and second pressing pads positioned inward of the first and second grippers, the first and second pressing pads being configured to contact a terrace region of the battery cell. A method of charging and discharging a battery cell using the same is also provided.

公开(公告)号：US20220115688A1

公开(公告)日：2022-04-14

申请号：US17417524

申请日：2020-10-22

申请人： LG ENERGY SOLUTION, LTD.

发明人： Dong Hun BAE ,  Joon Sung BAE ,  Eui Kyung LEE ,  Sang Jih KIM ,  Suk Hyun HONG ,  Beom Koon LEE

IPC分类号： H01M10/04 ,  H01M10/058

摘要： A formation jig includes a pressing plate configured to press a battery cell, the pressing plate having a first through hole; a pressing support plate configured to support the battery cell when the pressing plate presses an upper or lower portion of the battery cell, the pressing support plate having a second through hole and a third through hole; a first screw configured to pass through first through hole of the pressing plate and the second through hole of the pressing support plate and to move the pressing plate in a gap-adjusting direction by rotation thereof; and a second screw configured to pass through the third through hole of the pressing support plate and to move the pressing support plate in the gap-adjusting direction by rotation thereof. A diameter of the second through hole is larger than a diameter of the first through hole.

公开(公告)号：US20240186644A1

公开(公告)日：2024-06-06

申请号：US18271526

申请日：2022-11-22

申请人： LG ENERGY SOLUTION, LTD.

发明人： Sung Hoon YU ,  Eui Kyung LEE ,  Sang Jih KIM ,  Suk Hyun HONG ,  Ju Hyeon CHO

IPC分类号： H01M50/342 ,  H01M10/052 ,  H01M10/44 ,  H02J7/00

CPC分类号： H01M50/342 ,  H01M10/052 ,  H01M10/446 ,  H02J7/0069

摘要： An activation method for a lithium secondary battery includes: a primary charging process charging a lithium secondary battery; a first degassing process discharging an internal gas containing oxygen to an outside of the lithium secondary battery or moving the internal gas containing oxygen to a gas pocket part after the primary charging process; an aging process aging the lithium secondary battery after the first degassing process; and a second degassing process removing gas from the aged lithium secondary battery.

公开(公告)号：US20240072289A1

公开(公告)日：2024-02-29

申请号：US18272038

申请日：2022-11-23

申请人： LG ENERGY SOLUTION, LTD.

发明人： Eui Kyung LEE ,  Nak Gi SUNG ,  Sang Jih KIM ,  Suk Hyun HONG

IPC分类号： H01M10/04 ,  H01M10/058

CPC分类号： H01M10/0404 ,  H01M10/0481 ,  H01M10/049 ,  H01M10/058

摘要： A secondary battery activation device capable of effectively removing gas generated inside a secondary battery cell during an activation process of a secondary battery and a secondary battery manufacturing method using the same are provided. The secondary battery activation device includes a first pressing unit comprising a first pressing plate and a plurality of first elastic pressing members located on a first surface of the first pressing plate, and a second pressing unit comprising a second pressing plate and a plurality of second elastic pressing members located on a second surface of the second pressing plate, the second surface of the second pressing plate being arranged to face the first surface of the first pressing plate.

公开(公告)号：US20230135483A1

公开(公告)日：2023-05-04

申请号：US17917788

申请日：2021-11-22

申请人： LG ENERGY SOLUTION, LTD.

发明人： Suk Hyun HONG ,  Joon Sung BAE ,  Eui Kyung LEE ,  Sang Jih KIM ,  Beom Koon LEE ,  Dong Hun BAE

IPC分类号： H02J7/00

摘要： A device for charging and discharging a battery cell includes first and second plates spaced from each other, the first and second plates being configured to press respective first and second surfaces of a battery cell locatable therebetween, and first and second pressing blocks located on the first and second plates, respectively, the first and second pressing blocks protruding from the first and second plates to face each other. The first and second pressing blocks are locatable in a space between a body and a gas pocket of the battery cell. A method using the device is also provided.

公开(公告)号：US20240322216A1

公开(公告)日：2024-09-26

申请号：US18269487

申请日：2022-11-02

申请人： LG ENERGY SOLUTION, LTD.

发明人： Sang Jih KIM ,  Nak Gi SUNG ,  Eui Kyung LEE ,  Suk Hyun HONG

IPC分类号： H01M10/04 ,  H01M10/058 ,  H01M10/44

CPC分类号： H01M10/0468 ,  H01M10/446 ,  H01M10/058

摘要： A method of activating a lithium secondary battery includes a pressurization process pressurizing the lithium secondary battery while changing pressure at one or two or more time periods selected from before an activation process, after the activation process, and between activation steps of the activation process.

公开(公告)号：US20240063439A1

公开(公告)日：2024-02-22

申请号：US18269620

申请日：2022-11-02

申请人： LG ENERGY SOLUTION, LTD.

发明人： Sang Jih KIM ,  Nak Gi SUNG ,  Eui Kyung LEE ,  Suk Hyun HONG

IPC分类号： H01M10/058 ,  H01M10/0525 ,  H01M10/44 ,  H01M50/105

CPC分类号： H01M10/058 ,  H01M10/0525 ,  H01M10/446 ,  H01M50/105

摘要： An activation method for a lithium secondary battery having an electrode lead includes: a pre-aging process aging the lithium secondary battery at room temperature; a formation process charging the lithium secondary battery; and a roll-pressing process of pressurizing the lithium secondary battery using a pressure roller. The roll-pressing process includes pressing from a center of the lithium secondary battery toward an end of the lithium secondary battery where the electrode lead is located.

公开(公告)号：US20220278352A1

公开(公告)日：2022-09-01

申请号：US17630946

申请日：2021-01-08

申请人： LG ENERGY SOLUTION, LTD.

发明人： Suk Hyun HONG ,  Joon Sung BAE ,  Eui Kyung LEE ,  Sang Jih KIM ,  Beom Koon LEE ,  Dong Hun BAE

IPC分类号： H01M10/04 ,  H01M50/317 ,  H01M50/30

摘要： A pressing jig for removing gas generated in an activation process of a battery cell includes a plate-shaped lower plate on which the battery cell that has undergone the activation process is placed and fixed, and an upper plate that presses the battery cell placed on the lower plate from above. At least one of the upper plate or the lower plate has a structure in which n (n≥3) separated sub-plates are assembled to form a single plate, and the sub-plates independently press the battery cell. The pressing jig can suppress trapping of internal gas by sequentially pressing the battery cell.

公开(公告)号：US20220077537A1

公开(公告)日：2022-03-10

申请号：US17419064

申请日：2020-07-22

申请人： LG ENERGY SOLUTION, LTD.

发明人： Sang Jih KIM ,  Joon Sung BAE ,  Beom Koon LEE ,  Dong Hun BAE ,  Eui Kyung LEE ,  Suk Hyun HONG

IPC分类号： H01M50/317 ,  H01M10/04

摘要： A degassing apparatus for a secondary battery, and a degassing method using same, is provided. The degassing apparatus includes a drive motor and a jig arm configured to pressurize a first surface of a gas pocket of a battery cell and a second surface opposite the first surface by controlling a separation distance by the operation of a driving motor. The degassing apparatus is capable of performing an effective degassing and sealing process for the battery cell without positional movement of the battery cell during cell activation or after cell activation.