Metaphosphoric acid (HPO3), aluminum salt
CAS No.: 13776-88-0
- Molecular Formula: AlO₉P₃
- Molecular Weight: 263.90 g/mol
Chemical type
- Inorganic phosphate compound
- Electrolyte additive for lithium-ion batteries
Key properties
- Decomposes on cathode surface to form AlF₃ and Al₂O₃
- Scavenges hydrofluoric acid (HF)
- Contributes to formation of a dense, inorganic-rich cathode electrolyte interphase (CEI)
- Cathode stabilizer in high-voltage lithium-ion batteries
- HF scavenger to mitigate cathode corrosion
Classification by use
- Electrolyte additives for battery performance enhancement
- Chemicals used in high-energy-density battery systems
A trustworthy factory and manufacturer
- Aluminum metaphosphate-derived CEI suppresses interfacial degradation of NCM811 at 4.5 V and 60 °C, Electrochemistry Communications, Volume 184, March 2026, 108114
