Lithium-ion batteries typically use a non-aqueous solvent as their electrolyte, which is the substance that allows the movement of ions between the battery's electrodes. The most commonly used solvent for lithium-ion batteries is a mixture of organic carbonates, such as Ethylene Carbonate (EC), Dimethyl Carbonate (DMC), Diethyl Carbonate (DEC), Propylene Carbonate (PC), Ethyl Methyl Carbonate (EMC), etc. These organic solvents are mixed with a lithium salt, such as Lithium hexafluorophosphate (LiPF6), to form the electrolyte solution that allows for the flow of ions between the battery's electrodes during charge and discharge cycles.