A secondary battery that includes a positive electrode, a negative electrode, and an electrolytic solution. The positive electrode includes a positive electrode active material and a plurality of fibrous materials. The fibrous materials are tangled with ea...

An electrode plate for an alkaline storage battery of the present Invention includes a conductive core material as a current collector, in which a plurality of through-holes are linearly provided in the core material so as to be parallel to a longitudinal ...