A fluorinated cyclic carbonate additive. It forms a hard, mechanically robust SEI layer rich in lithium fluoride on the anode surface. This property is particularly critical for silicon anodes: the large volume change of silicon during charging demands an SEI that is robust rather than merely flexible. It is an almost standard additive in silicon anode studies.

Key Features

Forms a mechanically robust SEI rich in lithium fluoride
A critical additive for an SEI that can withstand the volume change of silicon anodes
Also contributes to stability in high-voltage cathode systems