E-AL Three-dimensional porous aluminum foil

E-AL three-dimensional (3D) porous aluminium foil is a high-purity current collector designed for lithium-ion batteries, supercapacitors, and other electrochemical energy-storage systems that undergo frequent charge–discharge cycling. Compared with conventional flat aluminium foil, the engineered porous surface increases effective surface area and provides a more mechanically “anchored” interface for coating adhesion.

Working principle

The 3D porous architecture promotes improved contact between the active material layer and the current collector. This can reduce interfacial resistance, support more uniform current distribution, and improve coating integrity during repeated cycling or high-rate operation. The porous structure can also help accommodate mechanical stress from electrode swelling/shrinkage, supporting stable electrochemical behaviour over time.

Key specifications (typical)

• Aluminium purity: ≥99.95%
• Porosity: customised (application-dependent)
• Surface density (customised): 35–53 g/m²
• Thickness tolerance: ±2.0 µm
• Mass resistivity: ≥0.264 Ω·g/m²
• Tensile strength: ≥8.0 kg/m²
• Room-temperature elongation: ≥1.0%
• Oxidation resistance (180°C, 15 min): OK
  
  

Typical applications

• High-power lithium-ion cathodes (Al current collector)
• Supercapacitor electrodes requiring low resistance and robust adhesion
• R&D studies on fast-charging, high-rate cycling, and long-life electrode designs
  
  

Why buy through ScienceGears (Australia & NZ)

ScienceGears supports researchers with product selection guidance (matching porosity/surface density to coating and target areal loading) and can bundle compatible electrochemistry tools such as potentiostats, battery cyclers, and in-situ/operando cells for complete battery testing workflows.