Title:
METHOD FOR MANUFACTURING ELECTRODE ASSEMBLY
Document Type and Number:
WIPO Patent Application WO/2024/085615
Kind Code:
A1
Abstract:
Provided is a method for manufacturing a stacking-folding-type electrode assembly using a negative electrode structure in which a negative electrode including a lithium metal layer is interposed between two separators. The manufacturing method comprises the steps of: positioning the lithium metal layer so as to protrude in the width direction between the two separators; manufacturing the negative electrode structure by laminating the lithium metal layer and the separators; stacking one positive electrode on the negative electrode structure and folding the negative electrode structure in the width direction so as to surround the positive electrode; manufacturing an electrode laminate including a plurality of positive electrodes by repeating the previous steps; and forming a negative electrode tab by cutting a portion of the lithium metal layer protruding in the width direction, and bonding the negative electrode tab. The method of manufacturing the electrode assembly can minimize the processing of lithium metal, and thus can improve the productivity of the electrode assembly.
Inventors:
KWON SOON KWAN (KR)
LEE CHANGHOON (KR)
LEE HYUNSOO (KR)
LEE JUNGHOON (KR)
LEE CHANGHOON (KR)
LEE HYUNSOO (KR)
LEE JUNGHOON (KR)
Application Number:
PCT/KR2023/016079
Publication Date:
April 25, 2024
Filing Date:
October 17, 2023
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
B23K20/10; H01M10/0583; H01M50/531; B23K101/36
Domestic Patent References:
| WO2021250803A1 | 2021-12-16 |
Foreign References:
| KR20190079961A | 2019-07-08 | |||
| KR20170000257A | 2017-01-02 | |||
| JPH10106612A | 1998-04-24 | |||
| US20220059875A1 | 2022-02-24 |
Attorney, Agent or Firm:
KIM, Sung Ho (KR)
Download PDF: