Composite Copper Foil Roll (Cu/PET or Cu/PI) as Battery Anode Current Collector, CBACCCPCFR
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The Cu/PET or PI/Cu composite foil is a next-generation "sandwich-structured" material designed to replace solid copper foils in the negative electrodes (anodes) of lithium-ion batteries. It consists of a central PET (polyethylene terephthalate) or PI (polyimide) plastic core flanked by ultra-thin layers of copper on both sides. This technology addresses the two biggest challenges in modern battery design: weight reduction and fire safety. Its main advantages are (1) improved safety, (2) increased energy density, (3) Elimination of "copper burrs", (4) decreased cost.
| Part Number |
CBACCCPCFR (C-BACC-CPCFR) |
| Purity |
>99.98% |
| Composite Foil Sizes |
(1) PET/Cu, T (6+2) um * W 300mm * L 5m (2) PET/Cu, T (8+2) um * W 300mm * L 5m (3) Cu/PET/Cu, T (1+4.5+1) um * W 180mm * L 50m (4) Cu/PET/Cu, T (1+4.5+1) um * W 200mm * L 10m (5) Cu/PET/Cu, T (1+4.5+1) um * W 280mm * L 50m (6) Cu/PET/Cu, T (1+4.5+1) um * W 300mm * L 10m (7) PI/Cu, T (5+3) um * W 250mm * L 5m (8) PI/Cu, T (25+6) um * W 250mm * L 6m (9) Cu/PI/Cu, T (3+25+3) um * W 250mm * L 5m Example: For Cu/PET/Cu (1.0 mm/4.5 mm/1.0 mm)  |