Patent No.X
The invention develops a battery packaging film. The embodiment is: it includes a polyolefin layer, an aluminum foil layer, a polyamide layer, a polyester film layer and a modified polyolefin layer, a polyester film layer is located at the outermost layer, a modified polyolefin is located at the innermost layer, and the polyester film is Between the layer and the modified polyolefin layer are an aluminum foil layer, a polyamide layer and a polyolefin layer in this order.
The hierarchical structure of the present invention can be between the outer layer and the inner layer, and can also be between the polyester film layer, the aluminum foil layer, the polyamide layer and the modified polyolefin layer, and the polyester film layer, the aluminum foil layer, the polyamide layer and The modified polyolefin layers have an adhesive resin layer therebetween.
The advantages of the present invention are as follows: firstly, there is a higher bonding strength with the metal electrode; second, the penetration and leakage of the battery liquid in the battery do not occur easily.
Source of information: pack.cn
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