8021 Battery Soft Pack Aluminum Foil

Soft-pack batteries are another name for polymer batteries. Compared with lithium-ion batteries, they have many advantages such as small size, light weight, high specific energy, high safety, and flexible design. Soft-pack batteries are packaged in aluminum-plastic film, and their structure is usually three-layer, with the middle layer being aluminum foil material. 8021 battery soft-pack aluminum foil is a high-performance aluminum foil, mainly used for soft-pack aluminum-plastic film of lithium batteries.

Advantages of 8021 battery soft pack aluminum foil

8021 aluminum foil has excellent performance. As the substrate of lithium battery soft-pack aluminum-plastic film, it has the following advantages:

• Excellent moisture resistance and barrier properties

8021 aluminum foil has extremely high barrier properties, which can effectively prevent water vapor penetration, ensuring that the electrolyte inside the battery is not polluted by the external environment, and also preventing the leakage of gas inside the battery, enhancing the stability and safety of the battery.

• Good heat sealing performance

During the manufacturing process of the battery, the aluminum-plastic film needs to be sealed by a heat sealing process to seal the battery cell. During heat sealing, the inner layer of the aluminum foil and the outer plastic film melt under high temperature and pressure to form a tight bond, thereby ensuring airtightness and leak-proof performance.

• High safety

When the soft-pack battery is working, if a fault occurs, the aluminum foil can effectively prevent the battery from exploding. Compared with hard-shell batteries, soft-pack batteries will first expand and release gas when the pressure is too high, rather than exploding directly, thereby improving safety.

• Strong mechanical properties

8021 aluminum foil has high strength and good ductility. It can withstand certain pressure and puncture, and is suitable for application scenarios that require high-strength materials.

• Clean surface

8021 aluminum foil has a smooth surface, free of oil stains, pinholes and other defects, ensuring good adhesion during the aluminum-plastic film composite process, and is not easy to fall off and delaminate.

Specifications and uses of 8021 battery soft pack aluminum foil

The 8021 aluminum foil products produced by FLAIT ALUMINUM are based on full consideration of the thermal conductivity, electrical conductivity and mechanical strength of aluminum foil. They use special blanks in a clean dust removal plant environment and use ANDRITZ plate rollers to improve their quality as battery soft-pack foil. The product has the characteristics of good deep drawing performance, good electrolyte corrosion resistance, and high heat sealing strength. It is the preferred aluminum material for battery soft-pack aluminum foil. For more information about battery soft-pack foil, please contact our team.

Original Source:Battery Shell Foil

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