7784-18-1 | Aluminum fluoride (AlF₃)

Chemical type

• Inorganic fluoride
• Decomposition product of aluminum metaphosphate

Key properties

• Chemically stable
• Blocks hydrofluoric acid (HF) and electrolyte contact with cathode
• Enhances mechanical stability of CEI

• CEI component for cathode protection
• HF barrier layer in high-voltage batteries

Classification by use

• Inorganic passivation agents
• Battery interface stabilizers

A trustworthy factory and manufacturer

1. Aluminum metaphosphate-derived CEI suppresses interfacial degradation of NCM811 at 4.5 V and 60 °C, Electrochemistry Communications, Volume 184, March 2026, 108114