| abstract |
The present invention is a lithium composite transition metal oxide containing nickel (Ni), cobalt (Co) and manganese (Mn), and the lithium composite transition metal oxide has a layered crystal structure of R3 m space group type. The lithium composite transition metal oxide has a nickel (Ni) content of 60 mol% or less, a cobalt (Co) content of more than manganese (Mn), and a single particle. ) Consists of the positive active material for secondary batteries. |