Abstract: A conductor includes a conductive structure and a dopant. The conductive structure has a predetermined shape and includes a carbon material having conductivity. The dopant causes the carbon material to generate an electric charge. The dopant includes a trifluoromethanesulfonate that is composed of a trivalent ion of a lanthanide and triflate anions.

Abstract: The wiring includes a substrate having one surface and a CNT pattern having multiple CNT lines which are made of a line-shape CNT on the surface and have a height of 1 ?m or more. In the cross section taken along one direction on the one surface, the CNT pattern wiring is a line-and-space film in which the opening is located between the plurality of adjacent CNT lines.

Abstract: A redox reaction electrode includes a catalyst carrier, a Pt catalyst supported on the catalyst carrier, and an ionomer having proton conductivity. The ionomer contains H4PO4+. As a result, the redox reaction electrode has improved redox performance. A fuel battery includes the redox reaction electrode and an electrolyte disposed to be in contact with the redox reaction electrode.

Abstract: A metal-air battery (1) includes a tubular positive electrode (2), a negative electrode (3) opposing an inner side surface of the positive electrode (2), and an electrolyte layer (4) disposed between the negative electrode (3) and the positive electrode (2). The positive electrode (2) includes a porous positive electrode main body (21) that is made of conductive ceramic and serves as a tubular supporter, and a separator (41) that is a porous film made of ceramic having insulating properties is formed on the inner side surface of the positive electrode main body (21). Using the positive electrode main body (21) as a supporter makes it possible to easily increase the thickness of the positive electrode (2) and to thereby reduce the electrical resistance of the positive electrode (2) and improve the battery performance of the metal-air battery (1).