Rechargeable lithium battery

摘要

A rechargeable lithium battery is provided that includes a negative electrode including a negative active material, a positive electrode including a positive active material, and an electrolyte. The electrolyte includes a lithium salt and a non-aqueous organic solvent including from 1 to 20 volume% of a cyclic carbonate and from 80 to 99 volume% of a linear carbonate. The positive electrode has an active mass density of 3.7g/cc or greater. The rechargeable lithium battery shows improved cycle-life and storage characteristics at high temperatures, and good high rate characteristics.