Products
Copper foil for double-sided general tensile lithium batteries
characteristic

1、Good wettability, low roughness.

2、Smooth on both sides, with good tensile strength elongation performance.


application

Lithium Ion Battery

type

ProconpullFor lithium batteriesCopper foil

testing instrument

copper thickness

4µm

4.5µm

5µm

6µm

7µm

8µm

9µm

12µm

15µm

18µm

20µm

Mass per unitg/m²

35-38

39-42

43-46

50-55

60-65

70-75

85-90

100-105

128-133

155-160

175-180

electronic balance

tensile strength(kg/mm²)

30

30

30

30

30

30

30

30

30

30

30

Tensile testing machine

Elongation rate(%

2.0

2.0

2.5

3.0

3.0

4.0

4.0

5.0

6.0

8.0

8.0

Tensile testing machine

Mechanical thickness(µm

0,+1

0,+2

0, +3

micrometer

Surface roughness

µm

Smooth surface

Rz≤3.0  ( perhapsRa≤0.3,firstRz)

Roughness tester

matte side

Rz≤3.0

Roughness tester

Wettability

36dyne

dyne pen

oxidize resistance

140±2℃ /15min No visible discoloration or oxidation after baking

Constant temperature baking

chemical composition(%): Cu 99.8% (Cu+Ag)

Wide tolerance(MM) :± 1MM

tape measure