公开(公告)号：US11539068B2

公开(公告)日：2022-12-27

申请号：US16764625

申请日：2018-12-07

申请人： LG CHEM, LTD.

发明人： Dong Hun Bae ,  Hyo Jin Park ,  Suk Hyun Hong ,  Joon Sung Bae ,  Beom Koon Lee ,  Dae Bong Lim ,  Jin Woo Heo

IPC分类号： H01M10/04 ,  H01M50/325

摘要： The present invention is a method for manufacturing a secondary battery. An electrode assembly and an electrolyte are accommodated into a body of a battery case. The body of the battery case has an accommodation part and a gas pocket part, and a passage that extends from the accommodation part to the outside discharges an internal gas from the accommodation part through the gas pocket part. The battery case is seated in a seating step on a support block, which has an inclined part on a side surface thereof, to support the battery case. The body is pressed to discharge a gas accommodated in the accommodation part through the gas pocket part in the battery case. This method allows easy discharging of internal gas while reducing discharge of the electrolyte with the gas.

公开(公告)号：US11824152B2

公开(公告)日：2023-11-21

申请号：US17257249

申请日：2020-01-02

申请人： LG CHEM, LTD.

发明人： Duck Hoe Kim ,  Cha Hun Ku ,  Dae Bong Lim ,  Soon Kwan Kwon ,  Hyun Kyung Shin ,  Ju Hyeon Cho ,  Ji Su An

IPC分类号： H01M10/04 ,  H01M10/0585

CPC分类号： H01M10/0404 ,  H01M10/0585

摘要： Discussed is an apparatus for manufacturing a unit cell of a battery, the apparatus including: a center electrode reel from which a center electrode is unwound; an upper separator reel from which an upper separator laminated on a top surface of the center electrode is unwound; a lower separator reel from which a lower separator laminated on a bottom surface of the center electrode is unwound; and a magnetic force generation part disposed above or below a first laminate to apply magnetic force to the first laminate, the first laminate including the lower separator, the center electrode, and the upper separator that are sequentially laminated.