Positive electrode including particles having bimodal size distribution for lithium secondary battery and lithium secondary battery having the same

摘要

A positive electrode for a lithium secondary battery includes a positive activation material mixture that intercalates and de-intercalates lithium ions, wherein a first positive activation material having an average particle diameter D50 of from 12.5μm to 22μm and a second positive activation material having an average particle diameter D50 of from 1μm to 5μm are mixed with a weight ratio of from 95:5 to 60:40.