| 摘要 |
PROBLEM TO BE SOLVED: To provide an alkaline secondary cell with a high capacity which allows for preventing an insulation failure caused by a positive electrode containing an electroconductive substrate of a three dimensional structure. SOLUTION: In the alkaline secondary cell which is provided with an alkaline electrolyte and an electrode group 2 formed by winding with the positive electrode 3 and negative electrode 4 containing an electroconductive substrate of a three dimensional through the separator, he electrodes in a spiral, a sub- separator 6 having a liquid retention of 150% or more is arranged at least on the surface of a separator located between a initial winding edge part 3a of the electrode 3 and the electrode 4. |
