Among all conductive salts, lithium hexafluorophosphate (LiPF6) remains the only candidate to be used in most commercial lithium-ion batteries, due to its well-balanced properties, such as high ionic conductivity, good electrochemical stability and effective aluminum current collector. Passivation and effective solid electrolyte interface (SEI) formation in highly graphitic anodes <1 V vs. Li+/Li. However, the phosphorus-fluorine bond is labile to traces of moisture, resulting in poor chemical stability. The degree of hydrolysis is more evident at higher temperatures.
General conductive salt for lithium ion battery eltrolytes, dissolved in variable proportions of different carbonate-based solvents depending on the specific application, in this case, EC : EMC (30 : 70, by wt.)