公开(公告)号：US11342576B2

公开(公告)日：2022-05-24

申请号：US16612908

申请日：2018-11-16

Applicant: LG Chem, Ltd.

Inventor： Jung Kwan Pyo ,  Cha Hun Ku ,  Su Taek Jung ,  Seok Jin Kim ,  Tai Jin Jung

IPC: H01M10/04 ,  H01M50/46 ,  H01M50/403

Abstract: The present invention provides a method for manufacturing an electrode assembly, comprising: interposing a plurality of first electrodes one by one, which are spaced apart from each other, between two separators; stacking a second electrode on each of outer surfaces of the separators on each of both sides of the first electrode at positions that are skipped by one of the plurality of positions on which the first electrodes are disposed to alternately continuously form a bi-cell, in which the second electrode/the separator/the first electrode/the separator/the second electrode are sequentially stacked, and a half-cell, in which the separator/the first electrode/the separator are sequentially stacked; cutting the stack into a unit cell in which one bi-cell and one half-cell are connected to each other; folding the unit cell so that the bi-cell and the half-cell are stacked; and stacking a plurality of folded unit cells to manufacture the electrode assembly.

公开(公告)号：US11978861B2

公开(公告)日：2024-05-07

申请号：US16619751

申请日：2019-02-18

Applicant: LG CHEM, LTD.

Inventor： Won Nyeon Kim ,  Jung Kwan Pyo ,  Cha Hun Ku ,  Byeong Kyu Lee ,  Tai Jin Jung

IPC: H01M10/04 ,  G01B11/26 ,  H01M10/0585

CPC classification number: H01M10/0585 ,  G01B11/26 ,  H01M10/04 ,  H01M10/0404

Abstract: An apparatus for manufacturing the secondary battery includes a first measurement part photographing unit cells, which are continuously transferred, to measure a position of a first electrode having a relatively large size of the first electrode and a second electrode, which are provided in the unit cells and have polarities opposite to each other, from an image of each of the photographed unit cells; and a first arrangement part disposing the unit cell passing through the first measurement part at a preset position of the separation sheet to adjust an interval between the unit cells disposed on the separation sheet on the basis of the position of the first electrode, which is measured by the first measurement part.

公开(公告)号：US11569113B2

公开(公告)日：2023-01-31

申请号：US16733704

申请日：2020-01-03

Applicant: LG CHEM, LTD.

Inventor： Tai Jin Jung ,  Cha Hun Ku ,  Jung Kwan Pyo ,  Byeong Kyu Lee

IPC: H01L21/68 ,  B65G27/02 ,  H01L21/677 ,  H01M10/04

Abstract: A unit cell alignment apparatus that includes a base member, on the upper surface of which unit cells constituting an electrode assembly are stacked parallel thereto, a first guide member located at one side of the base member, the first guide member being disposed so as to be perpendicular to the upper surface of the base member, a second guide member located at the base member, the second guide member being disposed so as to be perpendicular to the upper surface of the base member while being at right angles to the first guide member, and an inclination adjustment member configured to adjust the inclination of the base member.

公开(公告)号：US11179862B2

公开(公告)日：2021-11-23

申请号：US16629866

申请日：2019-04-01

Applicant: LG CHEM, LTD.

Inventor： Byeong Kyu Lee ,  Cha Hun Ku ,  Jung Kwan Pyo ,  Jin Gon Kim ,  Tai Jin Jung ,  Won Nyeon Kim

IPC: B26D7/14 ,  B26F1/12 ,  A01C7/04 ,  A01C7/06 ,  A01C7/20 ,  A01C5/04 ,  H01M50/103 ,  H01M4/04

Abstract: Discussed is a notching apparatus for a secondary battery that includes: a lower mechanism comprising a die and a die holder to which the die is fixed, the die engaging an electrode provided with a coating portion and a non-coating portion; a stripper including a first stripper pressing the coating portion and a pair of second strippers pressing and fixing the non-coating portion; an upper mechanism including a punch provided between the pair of second strippers and provided with a cutting blade cutting the non-coating portion disposed between the pair of second strippers and a punch holder allowing the punch to move in a direction of the lower mechanism; and a pressing member pressing the non-coating portion disposed between the pair of second strippers to increase in tension force when the non-coating portion is cut by the punch.

公开(公告)号：US11577447B2

公开(公告)日：2023-02-14

申请号：US16613682

申请日：2018-12-06

Applicant: LG Chem, Ltd.

Inventor： Tai Jin Jung ,  Hang June Choi ,  Kun Ha Park ,  Cha Hun Ku ,  Jung Kwan Pyo

IPC: B29C51/20 ,  B29C35/08 ,  B29C51/08 ,  H01M50/116 ,  B29C51/14 ,  B29C51/26 ,  B32B27/08 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  B29D99/00 ,  B29C70/88 ,  B29C33/00 ,  B29C33/06 ,  H01M50/131 ,  B29K23/00 ,  B29K67/00 ,  B29K77/00 ,  B29L31/34

Abstract: To solve the above problem, a pouch forming apparatus according to an embodiment of the present invention includes: a die in which a forming space is recessed inward from a top surface thereof; a partition wall partitioning the forming space into first and second forming spaces; a stripper disposed above the die and configured to descend to contact the die with the pouch film therebetween to fix the pouch film to be seated on a top surface of the die; and an electromagnetic force generation part disposed above the forming space and configured to generate electromagnetic force and configured to apply the electromagnetic force to the forming space.

公开(公告)号：US11307026B2

公开(公告)日：2022-04-19

申请号：US16636244

申请日：2019-03-22

Applicant: LG CHEM, LTD.

Inventor： Tai Jin Jung ,  Cha Hun Ku ,  Su Taek Jung ,  Jung Kwan Pyo

IPC: G01B11/27 ,  G01N21/95 ,  H04N5/225

Abstract: An alignment inspection apparatus for the electrode assembly including a laminate, in which a first separator, an internal electrode, a second separator, and an upper electrode are sequentially laminated, includes a camera disposed above a central portion of the electrode assembly to photograph and inspect the electrode assembly and side lights obliquely irradiating light onto each of both ends of the upper electrode. The side lights are symmetrical to each other with respect to the central portion of the electrode assembly.

公开(公告)号：US20200168941A1

公开(公告)日：2020-05-28

申请号：US16612908

申请日：2018-11-16

Applicant: LG Chem, Ltd.

Inventor： Jung Kwan Pyo ,  Cha Hun Ku ,  Su Taek Jung ,  Seok Jin Kim ,  Tai Jin Jung

IPC: H01M10/04 ,  H01M2/16 ,  H01M2/14

Abstract: The present invention provides a method for manufacturing an electrode assembly, comprising: interposing a plurality of first electrodes one by one, which are spaced apart from each other, between two separators; stacking a second electrode on each of outer surfaces of the separators on each of both sides of the first electrode at positions that are skipped by one of the plurality of positions on which the first electrodes are disposed to alternately continuously form a bi-cell, in which the second electrode/the separator/the first electrode/the separator/the second electrode are sequentially stacked, and a half-cell, in which the separator/the first electrode/the separator are sequentially stacked; cutting the stack into a unit cell in which one bi-cell and one half-cell are connected to each other; folding the unit cell so that the bi-cell and the half-cell are stacked; and stacking a plurality of folded unit cells to manufacture the electrode assembly.