The use of aluminum/polymer hybrid (Al/polymer) film as the package materials of lithium-ion batteries (LIBs) has been extensively investigated in various studies [1,2]. They limited the measurement of the properties only to the composite level, not layered properties.
Lithium-ion batteries (LIBs) are crucial components for electric vehicles (EVs), and their mechanical and structural stabilities are of paramount importance. In this study, the mechanical properties of an aluminum-laminated pouch sheet, as a key component of pouch-type LIBs, are examined.
In particular, the breakdown strength of PFA-300% film was significantly enhanced through high-temperature monoaxial stretching. The use of aluminum/polymer hybrid (Al/polymer) film as the package materials of lithium-ion batteries (LIBs) has been extensively investigated in various studies [1,2].
The aluminum plastic composite film, referred to as aluminum plastic film, is a composite flexible packaging shell material used to package lithium-ion batteries and is often used in soft pack batteries and blade batteries.
Polypropylene (PP) is used as a heat-sealing material; an Al sheet is employed to protect the interior from moisture and light, and polyamide (PA) or polyethylene terephthalate (PET) provides mechanical stability and durability. The multilayered LIB pouch is a representative composite material used by battery manufacturers.
The aluminum plastic film is a crucial material in the lithium battery industry chain’s upstream packaging, representing 10-20% of total material cost for pouch batteries.