摘要:
Flame retardant electrolyte solutions for rechargeable lithium batteries and lithium batteries including the electrolyte solutions are provided. The flame retardant electrolyte solution includes at least one lithium salt, at least one linear carbonate-based solvent, at least one ammonium cation, at least one phosphoric acid-based solvent, and at least one additive including oxalatoborate.
摘要:
An electrolyte for a lithium ion secondary battery is provided. The electrolyte includes a non-aqueous organic solvent, a lithium salt, an ionic liquid and an additive. The additive has a lowest unoccupied molecular orbital (LUMO) level of -0.5 to 1.0 eV and a highest occupied molecular orbital (HOMO) level lower than -11.0 eV. Further provided is a lithium ion secondary battery including the electrolyte. The battery is advantageous in terms of overcharge safety and heat stability. In addition, the battery has improved high-efficiency properties and cycle life characteristics.