High-Performance Copper Foil Rolls for Lithium Ion Battery
Size: 25 µm, 1 Roll: 2500 grams
Technical Properties
| Property | Value |
|---|---|
| Width | 200 mm |
| Length | 131 meters |
| Thickness | 25 µm |
| Areal Density | 190-200 g/m² |
| Purity (%) | More than 99.9% |
| Cu | ≥99.9% |
| Fe | < 0.0010% |
| Bi | < 0.00020% |
| Pb | < 0.0005% |
| Tensile Strength | ≥294 MPa |
| Normal Elongation | 2.5% |
| High Temperature Tensile Strength @ 180℃ | ≥147 MPa |
| High Temperature Elongation @ 180℃ | 2% |
| Anti-Oxidization (@ 180℃ Heating 1h) | No oxidation points on the surface, color does not change, copper foil without fracture |
| Surface Roughness Rz – Drum Side | Less than 0.3 µm |
| Surface Roughness Rz – Matte Side | Less than 3.0 µm |
| Surface Tension – Drum Side | 62 dyne/cm |
| Surface Tension – Matte Side | 62 dyne/cm |
| Coating Performance | Copper foil with uniform tension on both sides, slurry coating uniformity. |
