NOVELTY - The method involves coating a surface of a metal foil with an active material paste (S1). The active material paste is made of an active material and solvent. An active material layer is formed on the surface of the metal foil. Solvent content in the active material layer is greater than 20 % during coating drying process (S2). The solvent content in the active material layer is less than 50 % and greater than 100 % after completing the coating drying process. Mixed fluid is sprayed on a surface of the active material layer (S3). A ceramic layer is formed on the active material layer.    USE - Method for manufacturing an electrode utilized in an electrical storage apparatus i.e. lithium ion secondary battery, that is mounted in a vehicle e.g. electric vehicle (EV), plug-in hybrid vehicle (PHV), riding vehicle and commercial vehicle. Can also be used in an electrical double layer capacitor and a nickel-hydrogen secondary battery.    ADVANTAGE - The ceramic layer is formed on the active material layer, so that fall of energy density can be suppressed and insulation property can be improved.    DETAILED DESCRIPTION - The mixed fluid is alumina particle. The metal foil is a positive electrode metal foil and a negative electrode metal foil. The active material layer is a positive electrode active material layer and a negative electrode active material layer. The ceramic layer is a coating layer.    DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart illustrating an electrode manufacturing method.'(Drawing includes non-English language text)'    Step for coating a surface of a metal foil with an active material paste (S1)    Step for making solvent content in active material layer with specific value (S2)    Step for spraying mixed fluid on a surface of an active material layer (S3)    Step for drying a negative electrode active material layer after coating layer is formed (S4)    Step for pressing a negative electrode active material layer in a press structure part (S5)