Model:
Current Collector Copper Foil
Material:
Copper
Thickness:
Product description:
For Lab research, we sell 1kg/roll, 2kg/roll, 2.5kg/roll, 5kg/ roll etc.
standard width is 200mm, other width can be customized.
For production, each roll weight, width can be customized.
Copper foil is a material primarily used as the current collector of the anode in lithium ion batteries. It has ultra-thin properties and can be coated on both sides. It has the advantage of high load-carrying power and has good coating properties when is adhered.
Technical Specification
| Item | Nominal Thickness | Testing Equipment | |||||||
|---|---|---|---|---|---|---|---|---|---|
| 6um | 7um | 8um | 9um | 12um | 15um | 18um | 20um | ||
| Basis Weight (g/m²) | 50-55 | 60-65 | 70-75 | 85-90 | 100-105 | 100-105 | 155-160 | 175-180 | Electronic Balance |
| Transverse Areal Density | 1g | Electronic Balance | |||||||
| Tensile Strength at Room Temperature (kg/mm²) | >30.0 | >30.0 | ≥30.0 | 30 | 30 | >30.0 | ≥30.0 | ≥30.0 | Tensile Testing Machine |
| Elongation at Room Temperature (%) | 3 | ≥3.0 | ≥3.0 | >3.0 | 3 | >3.0 | >3.0 | ≥3.0 | Tensile Testing Machine |
| Mechanical Thickness (μm) | 0,-2 | 0,-3 | Micrometer | ||||||
| Shiny Side Surface Roughness (μm) Matte Side Surface Roughness (μm) | RZ≤3.0 | Roughness Tester | |||||||
| Matte Side Surface Roughness (μm) | RZ≤3.0 | Roughness Tester | |||||||
| Wettability | >34 dyn | Dyne Pen | |||||||
| Oxidation Resistance | No obvious oxidation after 15 minutes at 140°C | Constant Temperature Oven | |||||||
| Width Tolerance (mm) | ±1 | Measuring Tape | |||||||
| Appearance Quality | The surface of the copper foil shall be flat and free from wrinkles, dents, scratches, and edge damage. The edges shall be neatly cut. | Visual Inspection | |||||||
| The color is basically uniform, with oil stains and slight plating streaks allowed as long as they do not affect the coating of the anode. | |||||||||
| Joint (Splicing | ≤1pc per roll | ||||||||
| Chemical Composition | cu≥99.9% | Outsourced Testing | |||||||
| Storage Conditions | Storage environment should have a relative humidity ≤65% and temperature ≤25℃, and should avoid coexistence with corrosive or damp items and non-compliant chemicals. | Specific Testing Methods Refer to the Copper Foil Final Inspection Work Instruction | |||||||
| Warranty | 90 days after goods arrival | ||||||||
| Roll Weight | Can be customized | ||||||||
| Precautions for Using Copper Foil | Please see the copper foil usage precautions. | ||||||||
| Reference Standard | “Electrolytic Copper Foil for Lithium-ion Batteries” SJ/T 11483-2014 | ||||||||