| 摘要 |
PROBLEM TO BE SOLVED: To provide a positive electrode for an alkaline secondary battery with improved welding strength between a conductive base and a collector. SOLUTION: This positive electrode has a conductive substrate having a three-dimensional porous structure, in which an average hole diameter of one surface is larger than that of the other surface, and when the number of holes of the surface having a larger average hole diameters is 1, the number of holes of the surface having a smaller average hole diameters is in the range of 1.1 to 2, and the collector 8 welded on a collector welding area 4 of the surface of the conductive substrate having a larger average hole diameter, and a positive mix filled in the conductive substrate. |
