When you’re manufacturing lithium-ion cells, the quality of your materials defines the quality of your final product. And few materials are as important, or as specification-sensitive, as the foils for Li-ion batteries.
At Avocet Electrofoils (AEF), we supply copper foil that’s already being used in large-scale commercial battery production. It’s consistent, technically reliable, and available with full traceability, from mill to line.
What Makes Foils for Li-ion Batteries So Critical?
In lithium-ion cells, both the anode and cathode require foils that can handle chemical, electrical, and mechanical demands. For the anode, copper foil is the most common choice due to its conductivity, strength, and compatibility with various coatings.
To meet today’s performance standards, foils need to offer:
- Uniform thickness and surface quality
- High conductivity with low impurity levels
- Mechanical strength to handle coating, slitting, and winding
- Compatibility with different electrode chemistries
These are not generic materials. They must meet precise standards, often tailored to the battery format or application.
Who We Work With
Our copper foil is manufactured at our partner’s Yihao New Materials Co facilities, approved by several top-tier battery manufacturers, and distributed through our UK facility. We work closely with manufacturers across:
- Electric vehicles
- Energy storage systems (ESS)
- Aerospace and aviation
- Consumer electronics
- Research and pilot-line production
If you’re scaling up, refining your process, or planning for new chemistries, having the right foil supplier makes the entire chain more stable.
Looking Ahead
This year, we’ve seen strong growth and exciting new partnerships. We’re thankful to all our customers and collaborators for being part of it.
As 2025 draws to a close, all of us at Avocet Electrofoils would like to thank you for your continued trust and wish you a peaceful Christmas and a successful start to 2026.
We’re looking forward to what comes next, and we’re here to support your goals with reliable, high-performance foils for Li-ion batteries.
