| 摘要 |
A nickel electrode for alkaline storage battery of the invention comprises an electrically-conductive porous substrate coated with an oxide containing cobalt on the surface thereof and a positive active material coated with nickel and a compound selected from the group consisting of Ca, Sr, Sc, Y, Al, Mn and lanthanoids on the surface thereof. Thus, the coating of the surface of the active material with nickel and a compound containing Ca, Sr, Sc, Y, Al, Mn and lanthanoids causes the enhancement of the effect of increasing oxygen overvoltage at high temperature and hence the charge acceptability. Further, since the gap between the electrically-conductive porous substrate and the positive active material is filled with the oxide containing cobalt, the electrical conductivity thereof can be improved, making it possible to inhibit the deterioration of large current charge properties and large current discharge properties.
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