Description

Di-Fluoro Ethylene Carbonate is a high-purity fluorinated organic carbonate ester, a key advanced electrolyte additive and chemical intermediate. Its value lies in its ability to enhance the performance and safety characteristics of lithium-ion batteries by forming a stable solid electrolyte interphase (SEI) layer. This compound is essential for manufacturers and R&D teams in the advanced battery materials, specialty chemical synthesis, and pharmaceutical industries seeking to improve product stability and electrochemical properties.

Application

• Lithium-Ion Battery Electrolyte Additive: Used to improve cycle life, thermal stability, and safety by forming a robust SEI layer on high-voltage cathodes and silicon-based anodes.
• Specialty Chemical Synthesis: Serves as a versatile fluorinated building block for synthesizing novel pharmaceuticals, agrochemicals, and liquid crystal materials.
• Electrolyte Formulation for Next-Gen Batteries: A critical component in the development of electrolytes for lithium-metal, solid-state, and high-energy-density battery systems.
• Research & Development: Employed in academic and industrial labs for electrochemical studies and the development of new energy storage technologies.
• Capacitor and Supercapacitor Electrolytes: Enhances the operating voltage window and stability of advanced capacitor systems.

Basic Information

Product Name	Di-Fluoro Ethylene Carbonate
CAS No.	311810-76-1
Molecular Formula	C3H2F2O3
Molecular Weight	124.04 g/mol
Synonyms	4,5-Difluoro-1,3-dioxolan-2-one; DFEC; Difluoroethylene Carbonate; 1,3-Dioxolan-2-one, 4,5-difluoro-; Ethylene Carbonate, 4,5-difluoro-; 4,5-Difluoroethylene Carbonate
EINECS	Contact for details

Quality Control

Our Di-Fluoro Ethylene Carbonate is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure it meets precise purity and consistency standards required for high-performance battery applications. A Certificate of Analysis (COA) detailing specific batch results is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be handled under a dry inert atmosphere (e.g., nitrogen or argon) to prevent degradation. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 99.0%
Water Content (KF)	≤ 100 ppm
Acidity (Titration)	≤ 0.05%
Density (20°C)	~1.50 g/cm³

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.