| 摘要 |
PROBLEM TO BE SOLVED: To provide a current collector for a secondary battery formed into a thin film, having high open pore rate and moreover formed into an arbitrary pore pattern, and the secondary battery using the collector. SOLUTION: A secondary battery, such as an alkaline secondary battery and a lithium secondary battery, is constituted using a current collector formed as electrolyzed foil provided with a large number of meshed pores 2 of triangular shapes, hexagonal shapes or the like, and having 50 μm or less for film thickness and 10% or more for open pore rate. A fine particulate layer formed by a smaller current density than a forming current density for an electrodeposition layer main body is provided along the separation face of the electrodeposition layer main body of the foil and its electrodeposition growth face. |
