| abstract |
The invention provides a positive electrode precursor having a positive electrode active material layer, wherein the mass ratio A of a carbon material in the positive electrode active material layer 1 Is 15 mass% of lithium transition metal oxide, and mass ratio A of lithium transition metal oxide in positive electrode active material layer of 65 mass% or more 2 5 to 35 mass%, and the mass ratio A of the alkali metal compound in the positive electrode active material layer 3 10 to 50 mass%, A 2 /A 1 Is 0.10 to 2.00, A 1 /A 3 Is 0.50 to 3.00 inclusive, and the peel strength of the positive electrode active material layer is 0.02N/cm to 3.00N/cm inclusive. |