Mixed Cathode Material And Preparation Method Therefor

Abstract: The present invention relates to a mixed cathode material and a preparation method therefor, the material comprising a first cathode active material, which includes a first lithium transition metal oxide, and a second cathode active material, which includes a second lithium transition metal oxide, wherein each of the first lithium transition metal oxide and the second lithium transition metal oxide has a nickel content of 70 mol% or more on the basis of the total metal excluding lithium, D50 of the first cathode active material is greater than D50 of the second cathode active material, and the results of EELS analysis on the particle surfaces of each of the first cathode active material and the second cathode active material satisfy relation 1.

Patent Information

Applicants

Inventors

Specification

Documents

Application Documents