▎ 摘　　要

NOVELTY - Formation of electrode foil smooth edge involves performing degreasing process on the surface of an aluminum foil, placing obtained aluminum foil under an electrostatic field, simultaneously forming corrosion-resistant coating layers (A-D) on the foil using a coating solution, and performing accelerated curing process on the layers (A-D), such that smooth edge is formed on the aluminum foil. The coating solution is prepared by uniformly mixing graphene oxide and ionized water, adding 1-ethyl-(3-dimethylaminopropyl)carbodiimide hydrochloride, stirring, adding polyethyleneimine, stirring, washing obtained mixed solution using deionized water, filtering to obtain polar ionic liquid, mixing N,N-dimethylformamide and poly(methyl methacrylate), uniformly stirring to obtain transparent colloid, mixing the polar ionic liquid and the transparent colloid, and uniformly stirring. USE - Formation of electrode foil smooth edge. ADVANTAGE - The method enables to form electrode foil light edge that has excellent electrochemical corrosion resistance, and excellent mechanical strength (including tensile strength, anti-bending strength and anti-bending fatigue), which is good for the smooth implementation of subsequent pulling operation. DETAILED DESCRIPTION - Formation of electrode foil smooth edge involves performing degreasing process on the surface of an aluminum foil, placing obtained aluminum foil under an electrostatic field, simultaneously forming corrosion-resistant coating layers (A-D) on the foil using a coating solution, and performing accelerated curing process on the layers (A-D), such that smooth edge is formed on the aluminum foil. The coating layers (A-D) are formed by providing an infusion unit (U1) for outputting the coating solution to the aluminum foil to form layers (A and B) under the action of the electric field force, and an infusion unit (U2) for outputting the coating solution towards the aluminum foil to form layers (C and D) under the action of the electric field force, symmetrically on the left and right sides of the aluminum foil. The coating solution is prepared by uniformly mixing graphene oxide and ionized water to obtain graphene oxide stock solution, adding 1-ethyl-(3-dimethylaminopropyl)carbodiimide hydrochloride to the graphene oxide stock solution, uniformly stirring, adding polyethyleneimine, uniformly stirring, washing obtained mixed solution using deionized water, filtering to remove impurities, and 1-ethyl-(3-dimethylaminopropyl)carbodiimide hydrochloride and polyethyleneimine which are not completely crosslinked, to obtain polar ionic liquid, mixing N,N-dimethylformamide and polymethyl methacrylate, uniformly stirring to obtain transparent colloid, mixing the polar ionic liquid and the transparent colloid, and uniformly stirring. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the corrosion-resistant coating layer formed during formation of electrode foil smooth edge.