Electrolytic copper foil proof against tear or wrinkle defects, electrode comprising same, secondary battery comprising same, and manufacturing method therefor
Grant
US12580199B2
Kind: B2
Mar 17, 2026
Assignee
SK NEXILIS CO., LTD.
Inventors
Seung Min Kim, In Soo Jung, Young Tae Kim, Sang Hyun Jun
Abstract
An embodiment of the present disclosure provides an electrolytic copper foil, which comprises a copper layer and has a valley mean roughness of 0.8 to 12.5, a texture coefficient of (220) face (TC(220)) of 0.49 to 1.28, a tensile strength of 25 to 51 kgf/mm2, and a weight deviation in lateral direction of 3% or less.
CPC Classifications
H01M 4/661
H01M 4/667
H01M 4/70
H01M 10/0525
H01M 2004/021
H01M 2004/027
H01M 4/13
H01M 10/052
H01M 4/66
H01M 4/04
H01M 4/02
C25D 1/04
C25D 3/38
C23C 30/00
C23C 22/24
C23C 28/00
C23C 28/32
C23C 28/34
C23F 11/18
C23F 11/181
C23F 11/187
Y02E 60/10
Filing Date
2020-11-13
Application No.
17600443
Claims
12