| 摘要 |
PROBLEM TO BE SOLVED: To provide an alkali battery superior in heavy load discharge performance.SOLUTION: An alkali battery 1 comprises: a bottomed cylindrical positive electrode can 11; a positive electrode mixture 21 including plural hollow cylindrical pellets 21a, 21b, 21c stacked in the positive electrode can 11 coaxially with the positive electrode can 11; a separator 22 provided on an inner peripheral side of the positive electrode mixture 21; a negative electrode mixture 23 filled on an inner peripheral side of the separator 22; a negative electrode current collector (negative electrode current-collecting element 31) inserted in the negative electrode mixture 23; a negative electrode terminal plate 32 provided on an opening of the positive electrode can 11; and an alkaline electrolytic solution. The pellets 21a, 21b, 21c include a positive electrode active material and a surfactant; a spacing is provided between the adjacent pellets 21a, 21b, 21c. The surfactant is included in the pellets at a rate of 0.003-0.300 wt% to the total weight thereof. The surfactant includes an anion type surfactant.SELECTED DRAWING: Figure 1 |
