8021 aluminum foil also named 8021 battery aluminium foil . It commonly used in electronic products, such as soft lithium batteries, polymer lithium batteries and other lithium batteries. Because it is not easy to breed bacteria, so it is also widely used in food packaging industry, such as aluminum foil takeout lunch boxes, baking containers, etc. it has excellent shading performance, so it can also be used to pack cream and other goods that are afraid of direct sunlight. Good ductility, easy to tear, also widely used in the back of drug capsules, easy to store and open. 8021 aluminum foil is widely used in all walks of life.