ELECTROLYTE COMPOSITION, AND BATTERY AND DEVICE INCLUDING THE ELECTROLYTE COMPOSITION

An electrolyte composition for batteries is provided. The electrolyte composition includes a solvent and a partially substituted phosphite additive. The partially substituted phosphite additive is chosen from mono(trimethylsilyl) phosphite, bis(trimethylsilyl) phosphite, a Li salt derivative thereof, or a combination thereof. Additionally, a battery and a device including the electrolyte composition is provided.