| abstract |
The positive electrode precursor system of the present invention has a positive electrode active material layer. In the positive electrode active material layer, the mass ratio A 1 of the carbon material is 15% by mass or more and 65% by mass or less. In the positive electrode active material layer, lithium transitions The mass ratio A 2 of the metal oxide is 5 mass% or more and 35 mass% or less. In the positive electrode active material layer, the mass ratio A 3 of the alkali metal compound is 10 mass% or more and 50 mass% or less, A 2 / A 1 is 0.10 or more and 2.00 or less, A 1 / A 3 is 0.50 or more and 3.00 or less, and the peel strength of the positive electrode active material layer is 0.02 N / cm or more and 3.00 N / cm or less. |