Aluminum laminate film generally has three layers, respectively nylon layer, Al layer, PP layer.

Nylon layer is to ensure the appearance of aluminum laminate film, reduce the damage to the shell, ensure that the aluminum laminate film will not deform before manufacturing into lithium ion batteries, Prevents air, especially oxygen, from penetrating the battery, maintain the internal environment of the battery cells.

PP is polypropylene, which is characterized by melting at temperatures of more than 100 degrees Celsius and having viscosity after melting. So the heating seal of the pouch cell case mainly depends on the PP layer melting and bonding together after heating, and the PP layer solidifies after cooling. PP material will not be dissolved by organic solvent in the cell, can effectively prevent internal electrolytes and other contact with the Al layer, avoid the corrosion of the Al layer.

We provide high quality aluminum laminate film materials for Lithium ion pouch cell manufacturing. we can provide aluminum laminate film of various thicknesses, such as 88μm, 113μm, 122μm, 153μm.

We can also provide already completed pouch cell cases according to your requirements.