公开(公告)号：US20230092071A1

公开(公告)日：2023-03-23

申请号：US17909053

申请日：2021-02-02

Applicant: LG Energy Solution, Ltd.

Inventor： Juhyeon Cho ,  Won Nyeon Kim ,  Su Taek Jung ,  Soon Kwan Kwon ,  Byeong Kyu Lee

IPC: H01B17/62 ,  H01M4/04

Abstract: A secondary battery electrode is provided in the present disclosure. The secondary battery electrode includes an electrode current collector including first and second regions; an active material layer positioned on the first region of the electrode current collector; and an insulating layer positioned on the second region of the electrode current collector, wherein the insulating layer includes a first line portion and a second line portion.

公开(公告)号：US12266753B2

公开(公告)日：2025-04-01

申请号：US17769278

申请日：2020-07-10

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Byeong Kyu Lee ,  Su Taek Jung ,  Soon Kwan Kwon ,  Hyun Kyung Shin ,  Won Nyeon Kim ,  Seong Won Choi

IPC: H01M10/04 ,  B05C3/12 ,  B05C11/10 ,  H01M10/0585 ,  H01M50/46

Abstract: A method of manufacturing a unit cell having a negative electrode, a separator, and a positive electrode are stacked and placed between guide rollers. One of the positive electrode and the negative electrode. The separator is coated with a binder, and the separator is dipped in a solvent to soften a cured binder before the separator is put between the guide rollers. An apparatus for manufacturing a unit cell includes a reservoir in which at least two or more transfer rollers that rotate while the separator passes therethrough are mounted, and a solvent is stored at a predetermined level; and a chamber into which the separator passing through a reservoir is put together with the positive electrode and the negative electrode. Guide rollers are disposed so that the negative electrode and the positive electrode move to both surfaces of the separator, respectively.

公开(公告)号：US20220393225A1

公开(公告)日：2022-12-08

申请号：US17769901

申请日：2020-10-12

Applicant: LG Energy Solution, Ltd.

Inventor： Won Nyeon Kim ,  Hyun Kyung Shin ,  Su Taek Jung ,  Soon Kwan Kwon ,  Byeong Kyu Lee

IPC: H01M10/04 ,  H01M4/62 ,  H01M50/46

Abstract: A method for manufacturing an electrode assembly according to the present invention comprises: a step (a) of transferring an electrode, in which a plurality of electrodes and a plurality of separators are alternately stacked, to a first position; a step (b) of forming an adhesive layer on both side portions of the separators, which are provided in the electrode assembly disposed at the first position, in a full width direction; a step of (c) of allowing the pair of pressing blocks provided at a second position to move in a direction corresponding to each other, wherein an interval between the pair of pressing blocks is less than a length of each of the separators in a full width direction and is greater than a length of each of the electrodes in a full width direction; a step (d) of allowing both the side portions of the separator to be bent upward while being in contact with the pressing blocks when the electrode assembly disposed at the first position descends to be inserted between the pair of pressing blocks provided at the second position; and a step (e) of allowing both the bent side portions of the separator to be adhered each other by an adhesive layer while overlapping each other when the pair of pressing blocks moves toward the electrode assembly.

公开(公告)号：US20220407198A1

公开(公告)日：2022-12-22

申请号：US17778608

申请日：2020-11-11

Applicant: LG Energy Solution, Ltd.

Inventor： Won Nyeon Kim ,  Soon Kwan Kwon ,  Byeong Kyu Lee ,  Su Taek Jung

IPC: H01M50/609

Abstract: The present invention relates to an electrolyte injection device including a base portion on which a preliminary battery cell is disposed on an upper surface thereof, a movable pressing jig attached to the base portion, and an electrolyte injection pipe configured to inject an electrolyte into the preliminary battery cell, wherein the movable pressing jig includes a portion configured to press the preliminary battery cell in a direction perpendicular to an upper surface and a lower surface of an electrode assembly receiving portion of the preliminary battery cell, and thus it is possible to prevent a phenomenon in which a separator is folded or peeled off even when an electrolyte injection rate is high.