Anti-stripping sealing film for lithium battery and preparation method thereof and aluminum-plastic composite film thereof
A sealing film, lithium battery technology, applied in the field of aluminum-plastic composite film, can solve the problems of increasing the risk of peeling, battery packaging film leakage, increasing the number of layers, etc., to reduce the risk of peeling, good uniformity, and improve cold stamping. The effect of forming depth
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[0037] The present invention will now be further described in conjunction with specific embodiments. These drawings are all simplified schematic diagrams only to illustrate the basic structure of the present invention in a schematic manner, so they only show the constitution related to the present invention.
[0038] Such as figure 1 As shown, an anti-peeling sealing film for lithium batteries includes a sealing outer layer and a sealing inner layer, and an adhesive resin layer is arranged between the sealing outer layer and the sealing inner layer.
[0039] The outer sealing layer can be any one of nylon (PA), polypropylene (PP) or polyester (PET); the number of the outer sealing layer can be 1-5;
[0040] The inner layer of the seal can be any of nylon (PA), polypropylene (PP) or polyester (PET); the number of the outer layer of the seal can be 1-5;
[0041] The adhesive resin layer is an acid anhydride modified adhesive resin. When the acid anhydride modified PP adhesive resin is c...
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