US Patent No. 10,655,234

METHOD FOR PRODUCING ANODE FOR ALKALINE WATER ELECTROLYSIS, AND ANODE FOR ALKALINE WATER ELECTROLYSIS


Patent No. 10,655,234
Issue Date May 19, 2020
Title Method For Producing Anode For Alkaline Water Electrolysis, And Anode For Alkaline Water Electrolysis
Inventorship Shigenori Mitsushima, Yokohama (JP)
Sho Fujita, Yokohama (JP)
Ikuo Nagashima, Kobe (JP)
Yoshinori Nishiki, Fujisawa (JP)
Akiyoshi Manabe, Fujisawa (JP)
Akihiro Kato, Fujisawa (JP)
Assignee DE NORA PERMELEC LTD, Fujisawa-shi, Kanagawa (JP) NATIONAL UNIVERSITY CORP...

Claim of US Patent No. 10,655,234

1. A method for producing an anode for alkaline water electrolysis, the method comprising:dissolving lithium nitrate and a nickel carboxylate in water so as to obtain an aqueous solution comprising lithium ions and nickel ions,
applying the aqueous solution to a surface of a conductive substrate, wherein at least the surface of the substrate comprises nickel or a nickel-based alloy, and
subjecting the conductive substrate to which the aqueous solution has been applied to a heat treatment at a temperature within a range from 450° C. to 600° C., thereby forming a catalyst layer comprising a lithium-containing nickel oxide on the conductive substrate,
wherein the lithium-containing nickel oxide is represented by a compositional formula LixNi2?xO2, wherein x is 0.02?x?0.5.