公开(公告)号：US20200044230A1

公开(公告)日：2020-02-06

申请号：US16494969

申请日：2018-10-22

Applicant: LG CHEM, LTD.

Inventor： Jin Young SON ,  Moo Yong SHIN ,  Sang Hoon CHOY ,  Jung Min YANG ,  Taek Soo LEE ,  Do Hyun LEE ,  Chan Soo JUN ,  Cheol Woo KIM

IPC: H01M4/04 ,  H01M4/139 ,  B21D28/02

Abstract: A method for manufacturing an electrode for a rechargeable battery includes, with reference to a center axis that divides a metal sheet left and right, setting a first coating line that is parallel with the center axis at a location deflected to one side, and a second coating line that is parallel with the center axis at a location deflected to the other side so as to correspond to the first coating line with reference to the virtual center axis and coating an electrode slurry on the metal sheet while alternately moving a slot die to the first coating line and the second coating line.

公开(公告)号：US20210399278A1

公开(公告)日：2021-12-23

申请号：US17285984

申请日：2020-10-06

Applicant: LG CHEM, LTD.

Inventor： Taek Soo LEE ,  Sang Hoon CHOY ,  Ki Tae KIM ,  Cheol Woo KIM ,  Young Joon JO

IPC: H01M4/139 ,  H01M4/04 ,  H01M4/62

Abstract: The present invention relates to an electrode slurry coating device and method, wherein the heights of first and second slot die heads for discharging active material can be controlled according to time to improve process efficiency and reduce defect rates when forming an active material layer having a double layer structure.

公开(公告)号：US20200161627A1

公开(公告)日：2020-05-21

申请号：US16615373

申请日：2018-11-20

Applicant: LG CHEM, LTD.

Inventor： Taek Soo LEE ,  Jung Min YANG ,  Sang Hoon CHOY ,  Cheol Woo KIM

IPC: H01M4/04 ,  H01M4/70 ,  H01M2/26

Abstract: A method for manufacturing an electrode having an irregular shape through a simple process while minimizing the amount of wasted electrode active material is provided. The method results in first to third coating areas formed to be spaced apart from each other on a collector, a plurality of fourth coating areas formed between the first coating area and the second coating area, and a plurality of fifth coating areas formed between the second coating area and the third coating area. The plurality of fourth coating areas and the plurality of fifth coating areas are dislocated from each other when viewed from one side in a width direction of the collector.