▎ 摘　　要

NOVELTY - The packaging film has a nylon layer (1), an outer adhesive layer (2), a barrier layer (3), an inner adhesive layer (4), and a cast polypropylene (CPP) heat-sealing layer (5) which are arranged from outside to inside. The barrier layer comprises a furan resin layer/an organic fluoro resin layer/a mixture layer of a furan resin and an organic fluoro resin/a mixture layer of furan resin and organic fluororesin and a graphene oxide modified polyimide layer, with a thickness of 30-60 mu m. A graphene oxide microchip is with a diameter-thickness ratio of 300-3000. The polyimide layer is coated with furan resin layer or organic fluoro resin layer or mixture layer of furan resin and organic fluoro resin, with a thickness of 2 to 5 mu m. The outer adhesive layer is a polyurethane adhesive with a thickness of 1 to 5 mu m. The inner adhesive layer is a polyolefin adhesive with thickness of 1-5 mu m. The CPP heat-sealing layer is a retort grade polypropylene film with a thickness of 20-100 mu m. USE - Full plastic packaging film for lithium battery. ADVANTAGE - The risk of short circuit caused by corrosion of the heat seal layer of the aluminum plastic film is avoided. The safety performance of the battery is improved. The graphene oxide modified polyimide film has high strength, high barrier property, excellent flame retardance and excellent corrosion resistance. The surface is coated with a layer of furan resin to improve the corrosion resistance. The full plastic packaging film has the advantages of light weight and easiness in processing. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing an full plastic packaging film for a lithium battery. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view the full plastic packaging film for lithium battery. Nylon layer (1) Outer adhesive layer (2) Barrier layer (3) Inner adhesive layer (4) CPP heat-sealing layer (5)