Used as an electrolyte additive in lithium-ion batteries to improve cycling stability and enhance formation of a stable solid electrolyte interphase (SEI) layer on the anode. It helps increase battery lifespan and safety by reducing electrolyte decomposition at high voltages. Particularly effective in high-voltage cathode systems such as lithium nickel manganese cobalt oxide (NMC). Also contributes to better thermal stability and reduced gas generation during charge-discharge cycles.