Speciality Chemicals

Fluoroethylene Carbonate

  • CAS No.114435-02-8
  • GradeIndustrial / Pharmaceutical
  • Availability● In Stock

High-purity Fluoroethylene Carbonate (FEC) designed as a premium electrolyte additive for lithium-ion batteries, enhancing SEI film formation and low-temperature performance.

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Product Technical Details

Product Overview

Fluoroethylene Carbonate (FEC) represents a critical advancement in electrolyte technology for modern lithium-ion energy storage systems. As a specialized fluorochemical additive, it is engineered to optimize the electrochemical stability of battery cells across various industrial applications. Our manufacturing process ensures exceptional purity levels, making it an ideal choice for high-performance demands ranging from consumer electronics to electric vehicle powertrains. The compound is recognized for its ability to significantly improve the cycle life and safety profile of rechargeable batteries.

The primary function of this chemical involves facilitating the formation of a robust Solid Electrolyte Interphase (SEI) film on the anode surface. This protective layer is essential for preventing continuous electrolyte decomposition during charging and cycling processes. Unlike standard carbonate solvents, FEC decomposes preferentially to create a dense, flexible interface that maintains structural integrity under varying thermal conditions. This unique property ensures that the battery operates efficiently even in challenging environments.

Technical Specifications

Parameter Value
CAS Number 114435-02-8
Molecular Formula C3H3FO3
Molecular Weight 106.05 g/mol
Appearance Colorless Transparent Liquid
Chromatographic Purity ≥99.95%
Moisture Content ≤20 mg/kg
Free Acid (as HF) ≤20 mg/kg
Chroma (Pt-Co) ≤10 Hazen
Metal Ions ≤1 mg/kg
Density 1.454 g/cm3
Boiling Point 249.5°C at 760 mmHg

Performance Advantages

  • Enhanced SEI Film Formation: Creates a tight structure layer without significantly increasing internal impedance, ensuring efficient ion transport.
  • Improved Low-Temperature Performance: Maintains electrolyte conductivity and stability in cold environments, reducing capacity loss.
  • Extended Cycle Life: Prevents further decomposition of the electrolyte, prolonging the overall lifespan of the battery cell.
  • High Purity Standards: Rigorous control over moisture and acid content ensures consistent cell performance and safety.
  • Thermal Stability: Offers superior oxidation resistance compared to non-fluorinated counterparts, enhancing safety margins.

Industrial Applications

This product serves as a main lithium-ion battery electrolyte additive. It is extensively utilized in the manufacturing of advanced energy storage solutions where reliability and efficiency are paramount. The unique fluorinated structure provides superior compatibility with various lithium salts and solvent systems. Beyond energy storage, our fluorochemical platform supports research in new materials and advanced chemical synthesis, providing customers with convenient one-stop services for specialized fluorine-containing building blocks.

Quality Assurance and Packaging

To maintain chemical integrity during transit and storage, the product is packed in stainless steel barrels equipped with quick connectors and filled with nitrogen pressure (0.11-0.13MPa). This inert atmosphere prevents moisture absorption and oxidation. Available specifications include 25kg, 100kg, and 200kg containers to suit diverse production scales. Storage requires a cool, ventilated, and dry environment away from direct sunlight and moisture sources. Our company is committed to establishing a complete fluorochemical products and technology platform. We strive to build a complete industrial chain from raw material procurement to quality control, ensuring every batch meets international standards. Request a Certificate of Analysis (COA) for verification of specifications.