Specifications: W280mm * T0.009mm * Length(Customizable).
1.3kg, 1.4kg, 1.6kg/roll.
Carbon-coated copper foil for batteries. Application: Battery current collector.
Can be customized with different widths, thicknesses, single-sided and double-sided carbon coating.
Main Parameters:
| Test items | Test results |
| Foil width mm | 280±1 |
| Coating width mm | 239±1 |
| Plain foil base thickness μm | 9±1 |
| Carbon-coated copper foil total thickness um | 12±1 |
| Coating surface density g/㎡ | 0.5 (single-sided) 1.0 (double-sided) |
| Surface density deviation g/㎡ | ±0.10 (single-sided) ±0.2 (double-sided) |
Performance requirements:
| Technical requirements | Dimensional tolerance | Testing equipment | Inspection method |
| Tensile strength | ≥265MPa | Tensile testing machine | Cut measurement |
| Elongation | ≥2.0% ≤6% | Tensile testing machine | Cut measurement |
| Adhesion | No obvious leakage | 3M600 tape | Peeling method |
| End face | No burrs, damage or obvious ripples on the edge of the copper foil | Steel ruler | Direct measurement + visual inspection |
| Tube core roll diameter | 76.2mm | Steel ruler | Direct measurement |
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