应用： 氟代碳酸乙烯酯（FEC）可用作形成电解液的助溶剂，能显示出2.5 Ah g−1的可逆容量。可以进一步用于制造锂离子电池。FEC能够形成纤薄、光滑且稳定的被动固体电解质界面(SEI)层，不溶于电解液，从而增强二次电池的循环效率和放电容量保持率。 This product has been enhanced for energy efficiency.Fluoroethylene carbonate (FEC) can be used as a co-solvent for the formation of electrolytes, which can exhibit a reversible capacity of 2.5 Ah g−1. It can be further used in the fabrication of lithium-ion batteries. FEC enables the formation of thin, smooth and stable passive solid electrolyte interphase (SEI) layer, which is insoluble in the electrolyte, in turn increasing the cycling efficiency and discharge capacity retention of the secondary battery.