Lithium-Battery Composite Aluminum-Foil Coating Machine
Composite aluminum-foil process: An all-vacuum process eliminates aqueous plating and other steps, providing environmental benefits, simplicity and efficiency. Route: 1. PET, PP, PI or other substrates, width 1100-1650mm and thickness 3-12um. 2. Vacuum-deposit approximately 500-1000nm of aluminum on each side to meet conductivity/impedance requirements for lithium-battery cathode current collectors. Vacuum evaporation heats material under high vacuum, where its melting point is described as reduced, to melt/vaporize and deposit on polymer film. It offers simple operation, high deposition efficiency and uniform films. Depositing approximately 1 micrometer of aluminum on plastic creates a sandwich composite foil. Benefits: 1. Much less aluminum. 2. The plastic core improves safety and suppresses short-circuit ignition and burning. 3. Lower battery weight increases energy density. 4. Reduced current-collector mass/volume fraction further improves energy density.
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