Specifications & Physical Properties
Appearance: Colorless liquid
Purity: ≥99.5%
Moisture: ≤100 ppm
Bis(2,2,2-trifluoroethyl) Carbonate (TFEC)
CAS# 1513-87-7
Bis(2,2,2-trifluoroethyl) Carbonate (TFEC, CAS 1513-87-7) is a high-performance linear fluorinated carbonate. It is an indispensable, battery-grade chemical for enhancing the electrochemical stability of next-generation lithium batteries.
Uses of TFEC
TFEC is a critical electrolyte additive designed for high-voltage lithium-ion batteries, particularly in Li-metal and Si-anode systems. Its unique fluorinated structure enhances cell safety by significantly reducing electrolyte flammability. TFEC preferentially decomposes to form a durable, LiF-rich Solid Electrolyte Interphase (SEI), suppressing parasitic reactions and greatly improving long-term cycling performance.
Packaging
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