Alkaline storage battery and method for producing the same.

摘要

The alkaline storage battery made using a hydrogen-storing alloy for the negative electrode has suffered from the problems that the negative electrode is oxidized with oxygen gas generated from the positive electrode during overdischarge to cause increase of internal resistance and deterioration of charging and discharging cycle characteristics. According to the present invention, the above problems are solved by incorporating at least one of yttrium and yttrium compounds into the negative electrode comprising the hydrogen-storing alloy.