Title:
ELECTROLYTIC COPPER FOIL AND PRODUCTION METHOD THEREOF
Document Type and Number:
Japanese Patent JP2023110815
Kind Code:
A
Abstract:
To provide an electrolytic copper foil: having a relatively high tensile strength in such a coating step of an active material as needs handleability; showing a high elongation with a relatively low tensile strength after a heat treatment; and being suitable for a lithium-ion secondary battery.SOLUTION: The present invention relates to an electrolytic copper foil that has a tensile strength of 50 kgf/mm2 or more at an ordinary state, while having a tensile strength of 35-30 kgf/mm2 after continuous heat treatment at 190°C for 24 hours.SELECTED DRAWING: None
Inventors:
THOMAS DEVAHIF
MICHEL STREEL
MICHEL STREEL
Application Number:
JP2022072277A
Publication Date:
August 09, 2023
Filing Date:
April 26, 2022
Export Citation:
Assignee:
CIRCUIT FOIL LUXEMBOURG
International Classes:
C25D1/04; C25D1/00
Attorney, Agent or Firm:
Mutsumi Yanase