1, high cost, the current composite aluminum foil is at least 2 times more expensive than traditional aluminum foil.
Composite aluminum foil main cost components:
(1) equipment depreciation;
(2) base film cost, imported Toray PET base film offer 6 to 80 cents a square, domestic base film 2 to 30 cents a square;
(3) vaporization needs to be repeated more than 30 times, the cost of electricity is higher;
(4) evaporation lamps and other consumables in large quantities, an evaporation machine has 40 evaporation lamps, the production of more than 100,000 pairs of aluminum foil needs to be replaced. Note: the production of 10,000 square composite aluminum foil if repeated evaporation 38 times, the equivalent of 380,000 square feet of dosage.
2, continuity is poor.
Japan's evaporation equipment is more advanced, but at present the longest can only do 2,000 meters of continuity, 2,000 meters in 3C and digital small batteries can be used in the power battery application has some difficulty, power battery continuity is best in more than 10,000 meters. (Most of the traditional aluminum foil is 10,000 meters per roll. For battery manufacturers, disassembly and installation will be more time-consuming, the battery needs to stop production, the higher the number of meters of winding, the better the corresponding economic benefits)
