The positive electrode active material layer having a first positive active material and the second positive electrode active material, and manufacturing method for the positive electrode having a positive electrode active material layer

Proposed parameters for producing a cathode active material layer and a positive electrode having excellent safety, provides a positive electrode active material layer satisfies the parameters. The first positive electrode active material, a cathode active material layer having a second positive electrode active material and additive low charge and discharge potential than the first positive electrode active material, Dt 1 the tap density of the first positive electrode active Wherein the positive electrode active material layer, Wt When the porosity of the positive electrode active material layer was set to p,