Electrolyte for lithium ion rechargeable battery and lithium rechargeable battery including the same

A lithium ion rechargeable battery, comprising:

• an anode having an anode-active material;
• a cathode having a cathode-active material;
• and
• a housing enclosing an electrolyte, the anode and the cathode, the electrolyte including:
• a lithium salt;
• a non-aqueous organic solvent;
• a first compound that is a dihalogenated ethylene carbonate;
• and
• a second compound that is a halogenated ethylene carbonate, wherein:
• the electrolyte includes about 0.01 to about 2 weight % of the dihalogenated ethylene carbonate based on 100 weight % of the non-aqueous organic solvent, and
• the electrolyte includes about 0.1 to about 10 weight % of the halogenated ethylene carbonate based on 100 weight % of the non-aqueous organic solvent.