Method for producing aluminum foil

摘要

A method for producing an aluminum foil of the present invention is characterized in that an aluminum film is formed on a surface of a substrate by electrolysis using a plating solution containing at least (1) a dialkyl sulfone, (2) an aluminum halide, and (3) at least one nitrogen-containing compound selected from the group consisting of an ammonium halide, a hydrogen halide salt of a primary amine, a hydrogen halide salt of a secondary amine, a hydrogen halide salt of a tertiary amine, and a quaternary ammonium salt represented by the general formula: R1R2R3R4N.X (R1 to R4 independently represent an alkyl group and are the same as or different from one another, and X represents a counteranion for the quaternary ammonium cation), then the film is separated from the substrate to obtain an aluminum foil, and the obtained aluminum foil is subjected to a heat treatment.

主权项

1. A method for producing an aluminum foil, comprising the steps of:
forming an aluminum film on a surface of a substrate by electrolysis using a plating solution containing at least (1) a dialkyl sulfone, (2) an aluminum halide, and (3) a nitrogen-containing compound; separating the film from the substrate to obtain an aluminum foil; and subjecting the obtained foil to a heat treatment, wherein the heat treatment is conducted in an ambient atmosphere, and wherein the ambient atmosphere is at a temperature of 80 to 550° C.