Super-High Strength Double-Side Shiny Copper Foil
Super-High Strength Double-sided Shiny Copper Foil is tailored for high-energy-density applications, delivering a tensile strength of 600–700 MPa. At an ultra-thin gauge of 3.5–6 μm, it significantly outperforms standard-strength foil in mechanical performance, enhancing cell energy density and structural stability—ideal for drones, humanoid robots, and premium 3C digital products.
Physical Properties Data Sheet
Items | Units | Parameters | ||||
Thickness | μm | 3.5 | 4.5 | 5 | 6 | 8 |
Area Density | g/m2 | 31±1 | 40.5 ± 1.5 | 44.5 ±1.5 | 53.5 ± 1.5 | 72 ±2 |
Copper purity | % | ≥99.8 | ||||
Tensile Strength | MPa | 600–700 | ||||
Elongation | % | ≥3 | ≥4 | ≥4 | ≥4.5 | ≥5 |
Warpage | mm | ≤10 | ||||
Roughness | μm | Ra ≤ 0.4, Rz ≤ 3 | ||||
Anti-Oxidation | / | 140℃/15min No Oxidation | ||||
SEM Morphology
Application Scenarios
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