Aluminium Battery Foil

Key Benefits:

1. Aluminium battery foil offers high cleanliness, ensuring no contamination from dust or iron particles. It maintains excellent plate shape uniformity, critical for consistent coating of lithium-ion battery anodes. The foil delivers strong mechanical performance with high tensile strength and ≥3% elongation, balancing durability and flexibility.
2. Strict thickness tolerance (≤±3%) and minimal pinholes ensure reliability during rolling and calendering. The surface quality is extremely refined, free from defects like oil lines or pockmarks, ensuring optimal coating uniformity. High surface energy (≥31 dynes) enhances coating adhesion and battery performance.

Specifications:

• Common alloy grades include 1100, 1235, 1060 and 1070 in H18 temper. Thickness ranges from 9 to 20 microns, with 12, 13 and 15 microns widely used. Available in single-sided and double-sided battery foil variants based on application needs.

Applications:

• Widely used in electric vehicles (EVs), energy storage systems and 3C digital consumer electronics, aluminium battery foil plays a critical role in enhancing battery efficiency, lifespan and performance.