Ethylene Carbonate Battery Grade (EC)
CAS Number: 96-49-1
Battery-grade ethylene carbonate (EC) is a high-boiling, high-dielectric co-solvent essential for dissolving LiPF6 and forming stable SEI layers on graphite anodes. Its superior solvation power and solid SEI-forming capability make it a foundational component in commercial lithium-ion electrolyte formulations.
Technical Specifications
| appearance | Colorless crystalline solid (mp ~36°C) |
| purity (%) | ≥99.95 |
| color (APHA) | ≤10 |
| moisture (ppm) | ≤20 |
| acidity as HCO3 (ppm) | ≤5 |
| density (g/mL, 40°C) | 1.320–1.325 |
Applications
- Lithium-ion battery electrolyte co-solvent (EC/DMC, EC/EMC, EC/DEC blends)
- SEI layer formation on graphite and silicon anodes
- High-voltage electrolyte base solvent
- Polymer electrolyte plasticizer
- Industrial solvent for specialty polymers
Key Features
- Purity ≥99.95% with moisture ≤20 ppm safeguards LiPF6 salt stability
- High dielectric constant (ε≈89) enables effective lithium salt dissolution
- Promotes robust and uniform SEI formation on graphite anodes
- Available in IBC tote and drum packaging with moisture-sealed headspace
Send Inquiry
More in Battery / Energy Storage Chemicals
1,3-Propane Sultone (1,3-PS) SEI Additive
1120-71-4
Acetylene Black Battery Grade (Shawinigan-Type)
1333-86-4
Adiponitrile (ADN) High-Voltage Electrolyte Additive
111-69-3
Alumina (Al2O3) Ceramic Separator Coating Powder
1344-28-1
Boehmite (AlOOH) Separator Coating Powder
1318-23-6
Carboxymethyl Cellulose (CMC) Anode Binder/Thickener
9004-32-4
Cobalt Sulfate Heptahydrate Battery Grade (CoSO4·7H2O)
10124-43-3
Conductive Carbon Black Super C45 Battery Grade
1333-86-4