Method for producing porous aluminum foil, porous aluminum foil, positive electrode current collector for electrical storage devices, electrode for electrical storage devices, and electrical storage device

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United States of America Patent

PATENT NO 9812700
SERIAL NO

14354237

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Abstract

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A method for producing a porous aluminum foil of the present invention is characterized in that a porous 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) a nitrogen-containing compound, and having a water content of 100 to 2000 ppm, and then the film is separated from the substrate. The nitrogen-containing compound is preferably at least one 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).

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Patent Owner(s)

Patent OwnerAddress
PROTERIAL LTD6-36 TOYOSU 5-CHROME KOTO-KU TOKYO 135-0061

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Okamoto, Atsushi Mishima-gun, JP 111 576

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