Selective oxygen-permeable substrate, positive electrode for metal-air battery, metal-air battery, and selective oxygen-permeable membrane

摘要

There is provided a selective oxygen-permeable substrate including: a selective oxygen-permeable membrane having an inorganic framework and a transition metal ion complex and being capable of selectively permeating oxygen, and a porous substrate disposed on one surface of the selective oxygen-permeable membrane. Preferably, the transition metal ion complex is bonded to the inorganic framework. More preferably, a material constituting the inorganic framework is at least one kind selected from the group consisting of silica, titania, alumina, and zirconia. The selective oxygen-permeable substrate can selectively introduce oxygen in the air into the inside and has high durability against an electrolytic solution.