Positive electrode active material for high-performance lithium ion battery and manufacturing method thereof

摘要

It relates to a lithium nickel metal composite oxide powder having low alkali and excellent cycle characteristics, a lithium ion battery positive electrode active material containing the same, a lithium ion battery positive electrode using the active material, and a lithium ion battery having the positive electrode. In the lithium nickel metal composite oxide powder, by controlling the crystal grain size and composition ratio, it was successful in producing a lithium nickel metal composite oxide having excellent cycle characteristics and low alkali.