Propylene Carbonate Battery Grade (PC)
CAS Number: 108-32-7
Battery-grade propylene carbonate (PC) is a liquid co-solvent prized for its wide liquid range (-49°C to 242°C) and high dielectric constant, enabling excellent low-temperature electrolyte performance. It is used in lithium primary batteries, LiBF4-based systems, and as a plasticizer for gel polymer electrolytes.
Technical Specifications
| appearance | Colorless transparent liquid |
| purity (%) | ≥99.95 |
| color (APHA) | ≤10 |
| moisture (ppm) | ≤20 |
| acidity as HCO3 (ppm) | ≤5 |
| density (g/mL, 25°C) | 1.200–1.204 |
Applications
- Lithium primary battery (Li/MnO2, Li/SOCl2) electrolyte solvent
- Low-temperature lithium-ion electrolyte co-solvent
- LiBF4-based electrolyte formulation
- Gel polymer electrolyte plasticizer
- Supercapacitor electrolyte solvent
Key Features
- Lowest melting point (-49°C) among carbonate solvents extends low-temperature operational range
- High dielectric constant (ε≈65) enables efficient lithium salt dissolution
- Ultra-low moisture content prevents salt decomposition in sensitive electrolyte formulations
- Compatible with LiBF4 and LiClO4 for non-graphite anode battery systems
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