| abstract |
Provided is a positive electrode precursor having a positive electrode active material layer, wherein the mass proportion A 1 of a carbon material in the positive electrode active material layer accounts for 15-65 mass%, the mass proportion A 2 of a lithium transition metal oxide in the positive electrode active material layer accounts for 5-35 mass%, the mass proportion A 3 of an alkali meatal compound in the positive electrode active material layer accounts for 10-50 mass%, A 2 /A 1 is 0.10-2.00, A 1 /A 3 is 0.50-3.00, and the positive electrode active material layer has a peel strength of 0.02-3.00 N/cm. |