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  • Fluoro Ethylene CarbonateFEC
    Time:2015/12/27 21:25:47    Hits

    Chemical nameFluoro Ethylene Carbonate

    4-Fluoro-1,3-dioxolan-2-one

    CAS NO114435-02-8

    FormulaC3H3FO3

    Molecular weight106.05

    Structure formula 

    Product Properties

    Fluoroethylene carbonate (FEC) is colorless transparent liquid over 25 with the molecular formula C3H3FO3 and the melting point 18~23. The boiling point of FEC is 212as the relative density is 1.454g/ml.

    Specifications and Quality Standards

    No.

    Items

    E-Grade

    1

    Appearance

    Colorless transparent liquid

    (25)

    2

    Purityby GC

    99.95%

    3

    Moisture

    20 mg/kg

    4

    Free AcidHF

    20 mg/kg

    5

    Chromaticity(APHA)

    10 Hazen

    6

    Metallon

    Na\K\Fe\Zn\Ni\Mg\Ca\Pb

    1 mg/kg

     

    Application

    FEC is the main electrolyte additive in lithium ion batteriesLIB. FEC enables the formation of passive solid electrolyte interphase layer. With compact construction without increasing electrical impedance, that SEI film has better performance in LIB, which can significantly improve the performance of the electrolyte under low temperature.

    Packaging and storage

    This product is packed in stainless steel barrels with quick joint (N2 pressure: 0.11~0.13MPa ), with packing specification 200kg/200L, 100kg/100L or 25kg/25L. It should be stored in a cool, dry and draughty warehouse.


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