公开(公告)号：US20240145830A1

公开(公告)日：2024-05-02

申请号：US18279360

申请日：2023-01-11

Applicant: LG Energy Solution, Ltd.

Inventor： Seung Ho Na ,  Kwang Hee Choi ,  Song Hwa Han ,  Yoon Beom Lee ,  Jun Ho Yoon ,  Yeong Jae Lee

IPC: H01M50/186 ,  H01M50/105 ,  H01M50/119 ,  H01M50/121 ,  H01M50/129

CPC classification number: H01M50/186 ,  H01M50/105 ,  H01M50/119 ,  H01M50/121 ,  H01M50/129

Abstract: Disclosed herein is a pouch-type secondary battery and a manufacturing method thereof including. The pouch-type secondary battery includes an electrode assembly; an electrode lead extending from an electrode tab of the electrode assembly; an upper pouch; and a lower pouch. The upper pouch and the lower pouch include a sealed area where the edges are sealed and an unsealed area. An average thickness of the sealed area of the upper pouch and an average thickness of the sealed area of the lower pouch are equal to each other, and the average thickness of the unsealed area of the upper pouch is smaller than the average thickness of the unsealed area of the lower pouch, so that even if the thickness of the lower pouch is reduced during the sealing process of heat-sealing, the sealed area of the upper and lower pouches are formed with little difference in thickness.

公开(公告)号：US20230148221A1

公开(公告)日：2023-05-11

申请号：US17918777

申请日：2021-12-24

Applicant: LG Energy Solution, Ltd.

Inventor： Kwang Hee Choi ,  Kwan Bo Lee

IPC: H01M10/04 ,  H01M50/105 ,  H01M50/186

CPC classification number: H01M10/0404 ,  H01M50/105 ,  H01M50/186

Abstract: The present invention relates to a pouch-shaped battery case sealing apparatus capable of adjusting a direction in which an upper sealing block configured to press a laminate sheet applies pressure to the laminate sheet during a process of applying heat and pressure to an outer periphery of a battery case made of the laminate sheet to seal the outer periphery of the battery case when a pouch-shaped battery is manufactured and a pouch-shaped secondary battery sealing method using the same.

公开(公告)号：US20240149498A1

公开(公告)日：2024-05-09

申请号：US17923801

申请日：2021-11-10

Applicant: LG Energy Solution, Ltd.

Inventor： Shin Chul Kim ,  Kwang Hee Choi ,  Chang Min Han

IPC: B29C33/30 ,  B29C33/38 ,  B29C33/42 ,  B29C37/00

CPC classification number: B29C33/301 ,  B29C33/42 ,  B29C33/38 ,  B29C37/005

Abstract: An apparatus for molding a pouch includes: a die assembly with a die; a stripper assembly to press and fix both sides of a pouch film disposed on the die; and a punch assembly with a punch to mold an electrode assembly accommodation part in the pouch film. The stripper assembly includes: a stripper disposed at a punch assembly lower portion to press and fix the pouch film; a stripper driving piece at a punch assembly upper portion to provide force so that the stripper presses the pouch film; and a connection part to connect the stripper driving piece to the stripper to transmit the force. The connection part includes: two or more connection rods coupled to the stripper; a connection bar coupled to the stripper driving piece; and a connection piece to connect one or more of the connection rods to the connection bar to transmit the force.

公开(公告)号：US20240120580A1

公开(公告)日：2024-04-11

申请号：US18272929

申请日：2022-11-17

Applicant: LG Energy Solution, Ltd.

Inventor： Seung Ho Na ,  Kwang Hee Choi ,  Dong Kyun Ha ,  Yoon Beom Lee ,  Do Woo Kim ,  Hye Ji Lee

IPC: H01M50/105 ,  H01M10/04 ,  H01M50/119 ,  H01M50/121 ,  H01M50/129 ,  H01M50/133 ,  H01M50/178

CPC classification number: H01M50/105 ,  H01M10/0404 ,  H01M10/0481 ,  H01M50/119 ,  H01M50/121 ,  H01M50/129 ,  H01M50/133 ,  H01M50/178

Abstract: A sealing device for a pouch-type battery includes an upper sealing block and a lower sealing block. The upper sealing block has a two-stage upper sealing groove, including a first upper step and a second upper step, and the lower sealing block has a two-stage lower sealing groove, including a first lower step and a second lower step. The upper sealing block contacts a first surface of an electrode lead sealing part of the pouch-type battery, and the lower sealing block contacts a second surface of the electrode lead sealing part of the pouch-type battery in a process of performing sealing through heat fusion. A pouch-type battery having an electrode lead sealing part formed by the sealing device is also provided.