Microporous Copper Foil for Battery Application (30–50 μm Hole Spacing)
Microporous copper foil is a high‑performance current collector engineered for advanced energy storage devices. Its precisely controlled pore structure enhances electrolyte infiltration and ion transport, improving active material utilization, rate capability, and cycling stability in lithium‑ion and sodium‑ion batteries, as well as related research applications.
Key Features
- High‑purity copper substrate (≥99.9%) with excellent conductivity
- Controlled microporous structure for improved electrolyte access
- Enhanced adhesion with active material coatings
- Designed for high‑rate and long‑life performance
- Customizable width and thickness to meet application needs
Technical Specifications

Pore Density Distribution

Quality Control & Inspection

Handling & Maintenance
- Handle foil with clean gloves to prevent contamination.
- Avoid excessive bending or sharp creases during processing.
- Store in a clean, dry environment at 15 – 30 °C.
- Keep packaging sealed when not in use to prevent moisture ingress.
- Inspect foil visually before electrode assembly.

