POSITIVE ACTIVE MATERIAL WITH HIGH POWER DENSITY AND LONGEVITY

摘要

The present invention relates to a mixed positive electrode active material displaying high power and long durability. According to the present invention, a mixed positive electrode active material controls the particle size and mixes a nickel-cobalt-aluminum composite oxide with high energy density and a lithium-nickel-cobalt-manganese composite oxide with a layer structure with high stability, thereby displaying high energy density and high stability.