E-CU Three-dimensional porous copper foil

E-CU three-dimensional porous copper foil is a 3D current collector designed for advanced battery electrodes where improved electrolyte access, coating adhesion, and current distribution are critical. Unlike flat Cu foil, the interconnected porous architecture provides higher effective surface area, helping to reduce local current density and support more uniform electrochemical behaviour during charge/discharge.

Working mechanism

In battery electrodes, the current collector must transport electrons efficiently while maintaining strong contact with the active layer. The 3D porous mesh structure increases interfacial contact and provides pathways for electrolyte penetration, which can:

• improve coating anchoring and reduce delamination risk
• support higher active material loading and thicker electrodes
• enhance ion transport within the electrode structure
  
  

Key specifications (typical)

• Purity: ≥ 99.95%
• Porosity / pore size: 10–15 µm
• Areal density: 130–180 g/m² (as per customer requirements)
• Thickness deviation: ± 3.0 µm
• Mass electrical resistivity: ≥ 0.168 Ω·g/m²
• Tensile strength: ≥ 15.0 kg/m²
• Room temperature elongation: ≥ 2.0%
• Oxidation resistance (180°C, 15 min): OK
  
  

Compatibility & applications

Suitable for lithium-ion battery R&D and other rechargeable systems where a copper current collector is required, including:

• high-loading graphite/Si-based anodes
• 3D structured electrodes and rate-capability studies
• lithium-metal / dendrite-mitigation research (as a 3D host/current collector concept)
  
  

Why ScienceGears

ScienceGears supports Australian and New Zealand researchers with battery materials, current collectors, and electrochemistry tools, and can also help you bundle related lab needs such as coin/pouch cell hardware, electrode coating accessories, and potentiostats for complete electrode-to-testing workflows.