Positive electrode active material for lithium ion secondary battery and lithium ion secondary battery including positive electrode active material

摘要

The present invention refers to a positive electrode active material for a lithium ion secondary battery including layer-structured lithium metal oxide expressed by the following Chemical Formula 1 and at least one selected from the group consisting of spinel-structured lithium metal oxides and olivine-structured lithium metal oxides.
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ xLiMO 2 ·(1-x)Li 2 MnO 3 €ƒ€ƒ€ƒ€ƒ€ƒ(1)
where M is one or more selected from the group consisting of nickel (Ni), cobalt (Co), and manganese (Mn), and 0