2024 оптовая цена 8021 8011 8006 3003 0 2 мм 20 микрон Материал Алюминиевый сплав фольга для электронной упаковки

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wholesale price 8021 8011 8006 3003 0.2mm 20micron material aluminium alloy foil for electronic pack

8021 aluminum foil and 8079 aluminum foil are commonly used in 8 series aluminum foil. Because of their characteristics, they are widely used in food and drug packaging, electronic and electrical appliances, household goods and so on.

Why use 8021 aluminum foil as the packaging material of lithium battery? What are the advantages of aluminum foil in lithium battery application? Here we will introduce: firstly, aluminum foil can inhibit battery polarization, reduce thermal effect, improve rate performance, and reduce the internal resistance of battery and the dynamic increase of internal resistance during cycling; Secondly, the use of aluminum foil packaging can increase the cycle life of the battery, improve the adhesion between the active material and the current collector, and reduce the manufacturing cost of the electrode piece; as an important point, the use of aluminum foil packaging can improve the consistency of the battery pack, and greatly reduce the production cost of the battery.

In the production of 8021 battery soft package aluminum foil, we use Andritz plate roller, which guarantees the realization of good plate shape. The surface of the product is more uniform and clean, and the plate shape is flat; In addition, Honeywell thickness gauge is used to ensure the control of exit thickness, enhance the surface tension of 8021 aluminum foil, which is not less than 32 dyne under the dyne pen test, and the error of aluminum foil coil staggering is not more than ± 1.0 mm.

During the production process, 8021 aluminum foil has been tested by bacteria, mold and many other tests. The content of heavy metals should not exceed 0.25 ppm to ensure that the finished products are non-toxic, tasteless, safe and hygienic. Therefore, 8021 aluminum foil is often used as pharmaceutical aluminum foil and packaging aluminum foil.