In the rapidly evolving world of lithium-ion batteries, the demand for high-quality materials is paramount. Aluminum foil, specifically in the form of jumbo rolls, plays a crucial role in the manufacturing process of these batteries due to its unique properties. Here, we explore the key features and specifications of aluminum foil jumbo rolls for lithium-ion batteries.
Firstly, the surface quality of the aluminum foil is of utmost importance. The first surface should exhibit a uniform color, cleanness, and flatness, ensuring the absence of obvious roll marks, pitting, pinholes, and corrosion marks. This ensures the integrity and reliability of the battery's protective layer.
Moving on to the second surface, it must be devoid of rolling defects such as creases, spots, and bright lines. These imperfections can compromise the battery's performance and durability.
Thirdly, the aluminum foil must have no color difference on its surface. Color consistency is crucial for maintaining the uniformity and effectiveness of the battery's protective coating.
The fourth aspect focuses on the oil content of the aluminum foil. It should be oil-free, with no serious oil odor and no oil spots visible to the naked eye. This ensures that the foil does not contaminate the battery's internal components.
In terms of surface tension, the aluminum foil must meet stringent standards. The Dyne pen test should indicate a value of not less than 32 dyne. This ensures adequate wettability and adhesion of the protective coating.
The fifth criterion relates to the winding quality of the aluminum foil jumbo roll. The coil should be wound tightly, with a smooth end surface and smooth edges. This prevents damage and deformation during transportation and handling.
The roll layer thickness of the aluminum foil is also critical. It should not exceed ±1.0mm, ensuring consistency and uniformity throughout the roll.
| alloy | 8011 8079 1235 1200 |
| temper | o |
| thickness | 0.03mm-0.15mm |
| width | 200-1900mm |
| application | used in Food packaging bag, cigarette packing, food packaging |
| surface | one side bright,one side matt |
| Brand | GNEE |
| packaging | free fumigted wooden box |
GNEE Aluminum's specialized aluminum foil roll production line can produce various series of products with excellent performance. Our company continues to attract outstanding talents and combines with perfect production management systems at home and abroad to improve our productivity to ensure long-term stability of quality.
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