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Large Aluminum Foil
There are many battery foils currently needed, and customers generally pay more attention to the following aspects:
Battery foil customers usually focus on mechanical properties first. Different customers have different requirements for mechanical properties. Most customers require high tensile strength and high elongation. The mechanical properties mainly depend on the chemical composition and the design of the blank production process. Battery foils with various mechanical properties can be designed as alloy grades.
Thickness and areal density have an impact on the uniformity of the customer's carbon coating and coating cathode materials. Mainstream customers mainly check the thickness/area density fluctuation of a single roll and the thickness/area density fluctuation within a batch. Some customers will pay attention to CPK, PPK and other process capability indicators. The thickness is mainly affected by the billet and the rolling mill. A high-precision and stable rolling mill can bring the ideal thickness level.
Surface wetting tension: The surface wetting tension of battery foil affects the quality of carbon coating and cathode material coating. Low surface wetting tension usually leads to defects such as missing coatings, weak coatings, and edge shrinkage of coating materials. However, some customers do not limit the surface wetting tension. It can be understood that the slurry or coating process is different.
Pinholes: The pinholes that lithium battery customers pay attention to are mainly distribution and size, followed by quantity. Generally the diameter should not exceed 300μm or 500μm. There should be no large pinholes near the edge, and there should be no periodic, row-like or dense pinholes. The number of pinholes of 12μm battery foil is generally not more than 10/㎡.
For the above factors, we have now obtained a good solution, please feel free to inquire at any time.
Cost Of Aluminium Foil Per Kg The aluminum foil industry usually refers to battery aluminum foil as battery foil for short
