Best Price Lithium Ion Battery Anode Substrate Copper

Item

Product nominal thickness

Test instrument and test method

Double-side polished/Single-side polished

Single/double rough

Double-sided roughening

8um

9um

12um

15um

20um

10um

12um

10um

12um

Quality per unit area (g/m2)

70-75

85-90

100-105

128-133

175-181

95-100

105-110

95-100

105-110

Electronic balance

Tensile strength(kg/mm2)

Room temp.

≥30.0

≥30.0

≥30.0

≥30.0

≥30.0

≥25.0

≥25.0

≥25.0

≥25.0

Tensile testing machine

Elongation %

Room Temp.

≥5.0

≥5.0

≥5.0

≥6.0

≥8.0

≥2.5

≥2.5

≥3.0

≥3.0

Tensile testing machine

Roughness Rz value um

≤3.0

Negotiate

Roughness tester

Thickness um

(-0:+3)

Negotiate

Micrometer

Oxidation resistance (160℃10min)

No oxidative discolor

Constant temperature oven

Wide deviation mm

(-1:+1)

Tape measure

Appearance Quality

1. The surface of the copper foil is smooth and flat

2. No obvious bumps, wrinkles, indentations, bruises

3. Uniform color, no oxidation, spot, corrosion, oil stain

4. Trimmed trim, no lace and copper powder

Visual inspection

Chemical composition

Cu content≥99.8%

Environmental requirements

Compliance with ROHS directive

Warranty period

90 days in stock

Storage conditions

1. Copper foil warehouse should be kept clean and dry, relative humidity ≤ 60%, temperature ≤ 25 ° C

2. Copper foil warehouse without corrosive gases, non-corrosive chemicals and wet items