Composite copper foil roll-to-roll vacuum coating equipment HCRTR-Y
Deposits copper on both sides of PET/PP film in one operation at thickness 3.0~4.5μm and width 600~1650mm, forming a 'PVD copper–polymer support layer–PVD copper' sandwich at process speed 0.5-30m/min. Ultra-thin composite copper foil is a new negative-electrode current collector material for lithium batteries, offering lower cost, higher safety and higher energy density than conventional electrolytic copper foil. As lithium batteries develop toward high energy density and safety, copper foils trend toward thinner, microporous products with high tensile strength and elongation. Ultra-thin composite copper foil uses a 'PVD copper–polymer support layer–PVD copper' sandwich. Magnetron sputtering deposits 20-70nm copper on both sides of PET/PP and similar substrates 3-4.5µm thick, with sheet resistance about 0.5-2Ω, metallizing the film surface. Chemical electroplating then thickens copper to 1µm; the resulting 6-8μm composite foil replaces 4.5-9µm electrolytic copper foil.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Coating Technology | Magnetron sputtering |
| Coating method | Double-sided copper coating completed in one pass |
| Substrate Material [PET/PP] | 3~4.5µm PET/PP |
| Width | 600/1250/1350/1650mm |
| Sheet resistance of double-sided sputter-deposited copper films | 0.5~2 Ω/□ |
| Process line speed | 0.5~30 m/min |
| Production capacity (equipment utilization 90%) [Equipment utilization 90%] | 1200 × ten thousand square meters/year (1186 × ten thousand square meters/1GW·h) |
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