Lithium battery packaging bag film is composed of PET, AL, PA, PE.
PET film has high temperature resistance, good rigidity and high strength, suitable for printing
Aluminum foil has very high barrier properties, high temperature resistance, and light protection
PE has thermal bonding properties. After the PA is coated with a layer of PE, it can be used to bond other materials .
PA has good comprehensive properties, including mechanical properties, heat resistance, wear resistance, chemical resistance and self-lubrication, and has a low coefficient of friction and a certain flame retardancy.