Positive electrode current collector, method for producing positive electrode current collector, and lead-acid battery using this positive electrode current collector

摘要

PPROBLEM TO BE SOLVED: To provide a cathode collector which achieves practical life performance and highly efficient discharging performance in a lead storage battery provided with a collector on a surface of a base material made of titanium or a titanium alloy, and also to provide a manufacturing method of the cathode collector and a lead storage battery using the cathode collector. PSOLUTION: The cathode collector for a lead storage battery is provided with a base material made of titanium or a titanium alloy on the surface of which a tin dioxide membrane is formed in a thickness of 20 nm or more and 500 nm or less, and at least in a range of 20 nm in a thickness direction each from a surface of the tin dioxide membrane, and from an interface between the tin dioxide membrane and the base material, an antimony element is contained in a range of 0.7 to 5 mass% of an tin element. In a range of 25 nm or less in a thickness direction of the base material from an interface between the tin dioxide membrane and the titanium base material, an antimony element is contained in a range of 0.2 to 1.2 mass% of the titanium element. PCOPYRIGHT: (C)2008,JPO&INPIT