Elastic aluminium-plastic film used for flexible package of lithium battery and production method
An aluminum-plastic film and flexible packaging technology, which is applied in the field of elastic aluminum-plastic film for lithium battery flexible packaging and its preparation, can solve problems such as affecting the safety and service life of lithium batteries, micro-cracks in the aluminum foil layer, and easy corrosion of the outer layer of the aluminum-plastic film. , to achieve the effect of improving safety and service life, improving corrosion resistance and good elasticity
Inactive Publication Date: 2020-02-04
CHENDU NEW KELI CHEM SCI CO LTD
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Abstract
The invention relates to the field of lithium batteries, and discloses an elastic aluminium-plastic film used for a flexible package of a lithium battery and a production method. The production methodcomprises the following production process: (1) adding heat-resisting resin and a first binding material into a screw extruder, and conducting coextrusion casting and film-forming to obtain a nylon cast film outer protection layer; and (2) sequentially arranging the nylon cast film outer protection layer 1, a fluororubber microcellular foam layer 2, a first adhesive layer 3, an aluminium foil layer 4, a PP lamination layer 5 and a CPP film heat sealing layer 6 from outside in for lamination and compounding, and bonding the layers through an adhesive to produce the elastic aluminium-plastic film used for the flexible package of the lithium battery. Compared with an ordinary aluminium-plastic film, the produced elastic aluminium-plastic film has good elastic performance, bubbles on surfacesof the lithium battery are effectively avoided, micro-cracks of the aluminium foil layer in the aluminium-plastic package film are prevented, and meanwhile, the corrosion-resistant performance is good, so that the use safety of the aluminium-plastic film of the lithium battery is significantly improved, and the service life of the aluminium-plastic film of the lithium battery is significantly prolonged.
Application Domain
Synthetic resin layered productsCell component details +4
Technology Topic
Aluminium foilCorrosion resistant +9
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PUM
Property | Measurement | Unit |
Melting point | 165.0 ~ 280.0 | °C |
Thickness | 10.0 ~ 50.0 | µm |
Thickness | 10.0 ~ 30.0 | µm |
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