| 摘要 |
PROBLEM TO BE SOLVED: To increase the amount of electrolyte of a separator directly facing a positive electrode and a negative electrode and to improve a charge/discharge cycle life in a cylindrical alkaline storage battery by reducing a holding amount of the electrolyte in the center of an electrode group.SOLUTION: The cylindrical alkaline storage battery having the electrode group configured by winding the positive electrode, the negative electrode, and the separator is configured such that an electrolyte holding ratio of a separator located in the center of the electrode group by a technique such as the heat welding and not facing the positive electrode and the negative electrode is no higher than 60% of the electrolyte holding ratio of the separator directly facing the positive electrode and the negative electrode. |
