Aluminum film packaging materials used for lithium batteries

An aluminum plastic film packaging material used for a lithium battery at least comprising

• a substrate layer provided with a capability of heat resistance, and formed from a nylon film or a polyester film having a thickness of ranging between 10 μm and 50 μm;
• an aluminum foil layer bonded to the substrate layer, provided with a capability of hydrofluoric acid resistance, and formed from a soft aluminum foil containing 0.1-5 wt % of iron element and 0.1-5 wt % of silicon element and having a foil thickness of ranging between 30 μm and 100 μm;
• an innermost layer provided with a capability of heat seal for use in contact with electrolytes of a lithium battery, and formed from a polyolefin-based polymer film having a thickness of ranging between 10 μm and 60 μm;
• wherein the improvement comprises:
• an anti-corrosive layer coated onto one side of the aluminum foil layer, and formed from a conductive coating having a thickness of ranging between 10 nm and 500 nm ;
• and
• an adhesive layer coated as an interleaved layer between the anti-corrosive layer and the innermost layer, and formed from a fluorine-containing polyurethane bonding adhesive comprising:
• a) 65-92 wt % polyol composition;
• b) 0.5-8.0 wt % hydroxyl-containing modified fluorocarbon resins;
• and
• c) 5-30 wt % epoxy resin;
• each by weight of the fluorine-containing polyurethane adhesive.