An electrode body includes: a positive electrode that includes a positive electrode active material layer; a negative electrode that includes a negative electrode active material layer; and a separator that electrically separates the positive electrode and the negative electrode from each other, in which the positive electrode active material layer and the separator contain N-methylpyrrolidone (NMP). A N-methylpyrrolidone (NMP) content in the positive electrode active material layer is 54 ppm to 602 ppm with respect to a total solid content of the positive electrode active material layer, and a N-methylpyrrolidone content (NMP) in the separator is 10 ppm to 26 ppm with respect to the total solid content of the positive electrode active material layer.