What is Battery Aluminum Foil?
Battery aluminum foil (99.9% Al, CAS 7429-90-5) is the standard cathode current collector in lithium-ion cells. Aluminum is light, conductive and forms a passive film that is stable at cathode potentials, so LFP, NMC, LCO and LMO slurries are coated onto it. It is also used on both electrodes in sodium-ion cells.
Aluminum Foil for Lithium Ion Battery
Typical Chemical Analysis
| Assay | 99.9% |
| Other Metal | 900 ppm |
Applications
- Cathode current collector for lithium-ion cells
- Anode and cathode current collector for sodium-ion cells
- Electrode coating and pouch-cell R&D
Frequently asked questions
Why is aluminum used for cathodes but not graphite anodes?
Aluminum is stable at high cathode potentials but alloys with lithium at the low potentials of a graphite anode, so copper is used there.
Can I order aluminum foil in bulk?
Yes. Use the enquiry form on this page or email [email protected] with the quantity and specification you need, and we will send a bulk quote.
Do you ship outside Canada?
Yes. NanoLithium ships from Canada to the USA, Europe, South Korea and customers worldwide. Lead time and freight are confirmed with your quote.
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