公开(公告)号：EP4123821A1

公开(公告)日：2023-01-25

申请号：EP21898314.6

申请日：2021-09-27

申请人： LG Energy Solution, Ltd.

发明人： SON, Gilsang ,  KIM, Dongyeon ,  KONG, Jinhak

IPC分类号： H01M50/533

摘要： An electrode assembly according to one exemplary embodiment of the present disclosure includes a unit cell including a positive electrode plate, a separator and a negative electrode plate, an electrode tab that is protruded from at least one of the positive electrode plate and the negative electrode plate, and an electrode lead that is connected to the electrode tab, wherein an elliptical hole is formed in a portion of the electrode tab adjacent to an overlapping portion of the electrode tab and the electrode lead.

公开(公告)号：EP4362196A1

公开(公告)日：2024-05-01

申请号：EP22881303.6

申请日：2022-10-11

申请人： LG Energy Solution, Ltd.

发明人： CHOI, Hongjun ,  KIM, Dongyeon ,  KONG, Jinhak

IPC分类号： H01M50/342 ,  H01M50/178 ,  H01M50/105

CPC分类号： Y02E60/10 ,  H01M50/105 ,  H01M50/342 ,  H01M50/178

摘要： A battery cell according to an embodiment of the present invention includes a battery case including an electrode assembly mounted in a storage portion and a sealing portion having a structure in which an outer periphery thereof is sealed; and an electrode lead electrically connected to an electrode tab included in the electrode assembly and protruding in an outer direction of the battery case via the sealing portion. The sealing portion includes a gas discharge portion, a part of the sealing portion in which the gas discharge portion is not located is formed in a first sealing pattern, the gas discharge portion is formed in a second sealing pattern, and the first sealing pattern and the second sealing pattern are different from each other.

公开(公告)号：EP4432451A1

公开(公告)日：2024-09-18

申请号：EP22893247.1

申请日：2022-11-11

申请人： LG Energy Solution, Ltd.

发明人： LEE, Soono ,  CHOI, Kyuhyun ,  KONG, Jinhak ,  LEE, Je Jun ,  LIM, Jae Won

IPC分类号： H01M50/531 ,  H01M50/538 ,  B21D22/02 ,  B21D1/02 ,  B30B11/04

CPC分类号： Y02P70/50 ,  Y02E60/10 ,  B30B11/04 ,  H01M50/531 ,  B21D1/02 ,  H01M50/538 ,  B21D22/02

摘要： A forming device and a forming method thereof bends an electrode tab portion that is exposed to the end portion of a jelly roll-type electrode assembly in the axial direction thereof, in a radial direction. The forming device may include a forming jig bending the electrode tab, and a flattening jig flattening the bent electrode tab further. The forming jig comprises a pre-forming perimeter surface and a bend inducing surface. The pre-forming perimeter surface has an inner radius that increases from a base end toward a leading end elongated in a pressing direction. The bend inducing surface connects to the base end of the pre-forming perimeter surface, and extends inwards, in the radial direction.

公开(公告)号：EP4201640A1

公开(公告)日：2023-06-28

申请号：EP21892390.2

申请日：2021-11-15

申请人： LG Energy Solution, Ltd.

发明人： CHI, Ho June ,  CHOI, Hangjune ,  MOON, Jeong Oh ,  KIM, Dongyeon ,  KONG, Jinhak ,  PARK, Jin Yong

IPC分类号： B29C51/08 ,  H01M50/116 ,  H01M50/124 ,  B29C43/36 ,  B29L31/00

摘要： A pouch case manufacturing device pack according to an embodiment of the present disclosure includes a fixing unit that fixes a pouch film of a laminated sheet for battery cells; and a punch unit that presses the pouch film so as to form a storage part on the pouch film. The punch unit includes a central punch unit and an outer peripheral punch unit surrounding the central punch unit, the central punch unit presses the central portion of the pouch film, and the outer peripheral punch unit presses the outer peripheral portion of the pouch film. In in a vertical cross section parallel to the pressing direction of the punch unit, a radius of curvature of a corner of the central punch unit is larger than a radius of curvature of a corner of the outer peripheral punch unit.