Paste type positive electrode for alkaline storage battery, and nickel-metal hydridge storage battery

A paste type positive electrode for an alkaline storage battery containing a first active material, a second active material and a cobalt hydroxide powder,

• wherein said first active material comprises X parts by weight of particulate nickel hydroxide with aX/100 parts by weight of cobalt oxyhydroxide carried thereon, and said second active material comprises Y parts by weight of particulate nickel oxyhydroxide, of which an oxidation number of nickel is α, with bY/100 parts by weight of cobalt oxyhydroxide carried thereon,
• a quantity of said cobalt hydroxide powder being c parts by weight and all the following relations being satisfied:
• 2.5≦α<3.0 (1) 0.01≦(aX/100+bY/100+c)/(X+Y)≦0.20 (2′) 0<b≦a≦10 or 0=b<a≦10 (3) 2.1≦(2X+αY+2cx288/289)/(X+Y)<2.2 (4′)

A paste type positive electrode for an alkaline storage battery containing a first active material, a second active material and a cobalt oxyhydroxide powder,

• wherein said first active material comprises X parts by weight of particulate nickel hydroxide with aX/100 parts by weight of cobalt oxyhydroxide carried thereon, and said second active material comprises Y parts by weight of particulate nickel oxyhydroxide, of which an oxidation number of nickel is α, with bY/100 parts by weight of cobalt oxyhydroxide carried thereon,
• a quantity of said cobalt oxyhydroxide powder being d parts by weight and all the following relations being satisfied:
• 2.5≦α<3.0 (1) 0.01≦(aX/100+bY/100+d)/(X+Y)≦0.20 (2″) 0<b≦a≦10 or 0=b<a≦10 (3) 2.1≦(2X+αY)/(X+Y)<2.2 (4)