| 摘要 |
PROBLEM TO BE SOLVED: To provide an alkaline secondary battery to prevent ignition of a negative electrode layer of a negative electrode by heat and explosion generated at the time of welding a current collecting plate of the negative electrode (especially, plain part) to an electric conductive member to make conduction with a container while maintaining high capacity. SOLUTION: This alkaline secondary battery is furnished with the container, an electrode group stored in this container and spirally winding the negative electrode having the negative electrode layer containing hydrogen storage alloy powder and a positive electrode having a positive electrode layer containing nickel hydroxide with a separator between them and an alkaline electrolytic solution stored in the container, the negative electrode has the current collecting plate made of a punching metal sheet having the plain part at least on one side end part, the plain part is connected to an inner surface of a bottom part of the container through the electrical conductive member of a belt type or a plate type similar to the container bottom part, and the negative electrode constitutes its characteristic feature of having a region of 0.1-5 mm wide and where the current collecting plate is actually exposed on an end part on the container bottom part side.
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