FEC (Fluoroethylene Carbonate, 99.95%) as Battery Electrolyte Additive, 50 g/bottle, CBEAFEC
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Fluoroethylene Carbonate (FEC) is a highly effective and essential electrolyte additive, particularly for stabilizing high-capacity anodes like silicon (Si) and lithium metal (Li), which undergo massive volume changes during cycling. The main role of FEC is to facilitate the formation of a robust, flexible, and ion-conducting Solid Electrolyte Interphase (SEI) on the anode surface, especially for materials that suffer from severe volume changes (e.g., Silicon expands up to ~300% upon lithiation).
| Part Number |
CBEAFEC (C-BEA-FEC) |
| CAS |
114435-02-8 |
| Chemical Formula |
C3H3FO3  |
| Appearance |
Colorless Liquid |
| Purity |
99.95% (Battery Grade) |
| Molecular Weight | 106.05 g/mol |
| Boiling Point | ~162 °C (lit.) |
| Package Size | 50 g/bottle |
Notes: Please store the FEC solution in the glovebox due to its sensitivity to humidity and oxygen
References:
- T. Hou, et al. The influence of FEC on the solvation structure and reduction reaction of LiPF6/EC electrolytes and its implication for solid electrolyte interphase formation, Nano Energy, 2019, 64, 103881.
- Q. Li, et al. Identification of the Solid Electrolyte Interface on the Si/C Composite Anode with FEC as the Additive, ACS Appl. Mater. Interfaces 2019, 11, 15, 14066–14075.