What is a standard-electrolyte?

Non-aqueous electrolytes based on the conducting salt lithium hexafluorophosphate (LiPF6) dissolved in mixtures of ethylene carbonate (EC) with one or more linear carbonates, e.g., dimethyl, diethyl, and ethyl methyl carbonates (DMC, DEC and EMC, respectively) are still the key components of commercial electrolytes. The salt concentration is typically in the range of 0.8–1.5 mol L–1 in order to achieve maximum ionic conductivity. To tailor the performance of lithium-ion batteries with regard to the desired functionality, electrolyte additives are added in small concentrations of less than 5 wt.% to leave the bulk electrolyte properties unchanged.