Aluminum foil can be divided into roll aluminum foil and sheet aluminum foil according to the shape.
According to the state, aluminum foil can be divided into hard aluminum foil, semi-hard aluminum foil and soft aluminum foil.
1. Hard aluminum foil: The aluminum foil that has not been softened (annealed) after rolling, without degreasing treatment, has residues on the surface. It can be used directly for forming.
2 Semi-hard aluminum foil: aluminum foil whose hardness (or strength) is between hard foil and soft foil, usually used for processing.
3 Soft aluminum foil: The aluminum foil that has been fully annealed and softened after rolling, the material is soft, and there is no residual oil on the surface. Fields of application, such as packaging, electrical materials, etc., use soft foils.
The performance advantages of aluminum foil
1 The aluminum foil significantly improves the consistency of use and greatly reduces the cost.
2. The aluminum foil improves the adhesion between the active material and the current collector, the material is soft, easy to process, and reduces the manufacturing cost of the pole piece.
3. The aluminum foil is easy to operate and does not rust during use, which can greatly improve the d
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