The invention discloses a water-resistant and anti-swelling aluminum-plastic film for lithium battery packaging and a preparation method thereof. The film sequentially consists of a scratch-resistant layer, an aluminum foil layer, a chemical protection layer, an absorption layer and a barrier layer from outside to inside. Adhesive layers are arranged between the scratch-resistant layer and aluminum foil layer, chemical protection layer and absorption layer, as well as absorption layer and barrier layer, and the aluminum foil layer is composited integrally with the chemical protection layer. The preparation process includes preparing the scratch-resistant layer, forming the chemical protection layer on the aluminum foil surface, preparing the absorption layer composed of a gas absorption layer and a water absorption layer, arranging a mechanical support layer, a low-temperature heat-sealing layer and a barrier layer, and coating adhesive on adjacent surfaces before laminating all layers by a calender. The product features water resistance and anti-swelling performance, and effectively improves the safety and service life of lithium batteries.
Area Code: CN
Application Number: CN201610754827.0
