| abstract |
An alkaline storage cell comprises a positive electrode including a cobalt additive and nickel hydroxide particles that have been covered by a cobalt compound film layer, and a negative electrode including a hydrogen-absorbing alloy that contains nickel and cobalt. The positive electrode has a capacitance V, the negative electrode has a capacitance W, the cobalt additive is cobalt metal or a cobalt compound, the positive electrode contains X mass% of the cobalt additive, the cobalt is included by Y mass% in the hydrogen-absorbing alloy, and X, Y, V, and W satisfy the relationship 1.1 ≤ (X/Y) × (W/V) ≤ 1.91. |