High-Enlongation Copper Foil
High-Elongation Double-sided Shiny Copper Foil overcomes the strength-ductility trade-off with ≥8% elongation. At 4–10μm, it offers superior flex and tensile resistance, providing reliable flexible current collectors for high-safety power batteries, foldable screens, and drones.
Physical Properties Data Sheet
Items | Units | Parameters | ||
Thickness | μm | 4.5 | 6 | 10 |
Area Density | g/m2 | 40.5±1.5 | 53.5 ± 1.5 | 87±3 |
Copper purity | % | ≥99.8 | ||
Tensile Strength | MPa | 700 | 500 | 420 |
Elongation | % | 5 | 8 | 10.5 |
Warpage | mm | ≤10 | ||
Roughness | μm | Ra ≤ 0.3, Rz ≤ 2.5 | Ra ≤ 0.3, Rz ≤ 2.5 | Ra ≤ 0.3, Rz ≤ 3 |
Anti-Oxidation | / | 140℃/15min No Oxidation | ||
SEM Morphology
Application Scenarios
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