Description
High-Performance Copper Foil Rolls for Lithium-Ion Battery
Size: 10 µm | Roll Weight: 2500 g | Width: 200 mm | Length: 383 m
Our High-Performance Copper Foil Rolls are engineered for advanced lithium-ion battery applications, serving as both a current collector and thermal conduit. Thanks to their exceptional conductivity, oxidation resistance, and mechanical strength, they are essential materials in EVs, energy storage, and battery R&D.
Technical Properties:
| Property | Specification |
|---|---|
| Thickness | 10 µm |
| Width | 200 mm |
| Length | 383 meters |
| Roll Weight | 2500 grams |
| Areal Density | 85–90 g/m² |
| Purity | ≥99.9% Cu |
| Fe Impurity | < 0.0010% |
| Bi Impurity | < 0.00020% |
| Pb Impurity | < 0.0005% |
| Tensile Strength (Room Temp) | ≥400 MPa |
| Elongation (Normal Temp) | 3.72% |
| Tensile Strength @ 180 °C | ≥150 MPa |
| Elongation @ 180 °C | 2% |
| Oxidation Resistance @ 180 °C (1h) | No discoloration or surface fracture |
| Surface Roughness (Drum Side) | < 0.3 µm |
| Surface Roughness (Matte Side) | < 3.5 µm |
| Surface Tension (Drum Side) | 65 dyne/cm |
| Surface Tension (Matte Side) | 65 dyne/cm |
| Coating Uniformity | Excellent on both sides |
Applications:
-
Lithium-ion battery current collectors
-
Electric vehicle battery packs
-
Energy storage systems (ESS)
-
Slurry coating base layer
-
Thermal conduction and EMI shielding