HIGH-POWER LITHIUM SECONDARY BATTERY HAVING IMPROVED OUTPUT DENSITY PROPERTIES

摘要

Disclosed is a high-output lithium secondary battery including: a cathode that includes, 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 second cathode active material is between 40 and 100 wt% based on the total weight of the cathode active materials; an anode including amorphous carbon having a capacity of 300 mAh/g or greater; and a separator.