| abstract |
PROBLEM TO BE SOLVED: To provide an alkaline secondary battery with improved connection strength between a conductive substrate and a current collector in a method in which a current collector is directly welded to a conductive substrate of a positive electrode. And SOLUTION: A conductive substrate 6 having a three-dimensional structure, a current collector welding area existing on a surface of the conductive substrate 6, and a current collector welding area which is held on the conductive substrate 6 excluding at least the current collector welding area. Active material-containing mixture 3, a current collector 2 welded to the current collector welding region in a state separated from the active material-containing mixture holding region, the current collector 2 and the active material-containing mixture holding A positive electrode 12 including a conductive substrate exposed portion existing between the region 3, a conductive reinforcing material 5 covering at least the conductive substrate exposed portion, and a negative electrode are provided. |