| abstract |
According to the present invention, there is provided a cathode active material for an alkaline storage battery, an anode for an alkaline storage battery, and an alkaline storage battery each having excellent output characteristics, excellent self-discharge characteristics, and excellent cycle life characteristics. The cathode active material for an alkaline storage battery according to the present invention includes nickel hydroxide particles each containing at least magnesium in solid solution and a cobalt compound layer covering the surface of each of the nickel hydroxide particles. Among them, the cobalt compound layer contains cobalt having an average valence of 2.6 or more and 3.0 or less, and also contains sodium in a proportion of less than 0.10 wt% with respect to the total weight of the cobalt compound layer. The cathode active material for an alkaline storage battery according to the present invention is characterized by having a conductivity of less than 1.0 × 10 -5 S / cm in a pressurized state to 39.2 MPa. |