| abstract |
As a positive electrode precursor having a positive electrode active material layer, the mass ratio A 1 of the carbon material in the positive electrode active material layer is 15 mass% or more and 65 mass% or less, and the mass ratio A 2 of the lithium transition metal oxide in the positive electrode active material layer is 5 mass % Or more and 35 mass% or less, and the mass ratio A 3 of the alkali metal compound in the positive electrode active material layer is 10 mass% or more and 50 mass% or less, and A 2 / A 1 is 0.10 or more and 2.00 or less, and A 1 / A 3 is It is 0.50 or more and 3.00 or less, and the peeling strength of the positive electrode active material layer is 0.02 N / cm or more and 3.00 N / cm or less. |