Li-ion Batteries (LIB)
Lithium Foil
At Avocet, we supply ultra-thin lithium foil engineered for next-generation battery technologies. The foil can be single or double side laminated on Cu or other substrates (SS, Fe, Mesh, film). From laboratory-scale development to industrial production, our lithium foil solutions support the evolving needs of lithium-metal, solid-state, and experimental cell formats.

Product Features
| CAS Number | Colour | Density | Melting Point |
|---|---|---|---|
| 7439-93-2 | Silver grey | 0.534g/cm | 180.5 ℃ |
Product Specifications (%)
| Li | Al | Ca | Cr | Cu | Fe | K | Mg | Na | Ni | Si | N |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ≥ 99.9 | ≤ 0.005 | ≤ 0.015 | ≤ 0.005 | ≤ 0.005 | ≤ 0.005 | ≤ 0.01 | ≤ 0.005 | ≤ 0.015 | ≤ 0.005 | ≤ 0.01 | ≤ 0.02 |
| Ultra-Thin Lithium Foil – Lithium foil with substrate (Cu, SUS, Fe, Carbon electrode) | Description | |
|---|---|---|
| Type | Sheet & Roll type | |
| Size | Width: 10–300 mm; Length up to 200 m; Thickness: 0.01–2 mm | |
| Pure Lithium & Lithium Alloys | Sn, Al, Mg, Ba, In, etc. | |
Key features
- Ultra-thin lithium foil with excellent handling properties
- High purity lithium (≥ 9%)
- Custom roll lengths and slit widths available
- Alloy foil options available for specific electrochemical applications
- Copper-laminated formats available on request
Applications
Avocet’s lithium foil is tailored for:
- Lithium-metal and solid-state battery anodes
- Lithium-sulfur battery prototypes
- Pouch and cylindrical cell pilot lines
- Advanced aerospace, defence, and energy storage systems
Packaging & Handling
- Supplied in argon-filled aluminium pouches or vacuum-sealed containers
- Must be stored in dry-room or inert glovebox environments
- Safe and protective packaging for global transit and long-term stability
Why Choose Avocet’s Lithium Foil?
- High-purity lithium products with tight quality control
- Adaptable supply for both R&D and production needs
- In-depth technical support to help integrate lithium foil into your process
- Secure and compliant global logistics
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Certificates
We are proud to have been awarded ISO 9001 certification, an internationally recognised standard that ensures services meet the needs of clients through an effective quality management system. Our decision to work towards ISO 9001 certification demonstrates our commitment to providing a high-quality and consistent service to our clients and our ongoing investment in technology, development and processes and procedures.
You can download a copy of our ISO 9001 : 2015 certificate here.
You can download a copy of our ISO 14001 : 2015 certificate here.
You can download a copy of our ISO 45001 : 2018 certificate here.
