HIGH-ENERGY LITHIUM SECONDARY BATTERY HAVING IMPROVED ENERGY DENSITY CHARACTERISTICS

摘要

Disclosed is a high-energy lithium secondary battery including: a cathode including, as cathode active materials, a first cathode active material represented by Formula 1 below and having a layered structure and a second cathode active material represented by Formula 2 below and having a spinel structure, wherein the amount of the first cathode active material is between 40 and 100 wt% based on a total weight of the cathode active materials; an anode including amorphous carbon having a capacity of 300 mAh/g or more; and a separator.