NOVELTY - An alkaline storage battery is equipped with sintering-type nickel positive electrode, hydrogen storage alloy negative electrode, and electrode group containing separator (13) which isolates the hydrogen storage alloy negative electrode and the sintering-type nickel positive electrode, in an armored can (16). The sintering-type nickel positive electrode is obtained using nickel hydroxide as main positive electrode active material. The hydrogen storage alloy negative electrode is obtained using hydrogen storage alloy as negative electrode active material.    USE - Alkaline storage battery. Uses include but are not limited to hybrid vehicle, mobile telephone, personal computer, electric tool and electric vehicle.    ADVANTAGE - The alkaline storage battery has excellent durability, charging-discharging characteristics, and suppressed oxygen generation.    DETAILED DESCRIPTION - An alkaline storage battery is equipped with sintering-type nickel positive electrode, hydrogen storage alloy negative electrode, and electrode group containing separator which isolates the hydrogen storage alloy negative electrode and the sintering-type nickel positive electrode, in an armored can containing alkali electrolyte solution. The sintering-type nickel positive electrode is obtained using nickel hydroxide as main positive electrode active material. The hydrogen storage alloy negative electrode is obtained using hydrogen storage alloy as negative electrode active material. The sintering-type nickel positive electrode contains niobium. The hydrogen storage alloy contains magnesium-nickel-aluminum-containing compound of formula: Ln'l-xMgxNiy-a-bAlaMb (I), where Ln' is zirconium, titanium and rare-earth element including yttrium, M is element chosen from vanadium, niobium, tantalum, chromium, molybdenum, iron, gallium, zinc, tin, indium, copper, silicon, phosphorus, and boron, x and a are 0.05-0.30, b is 0-0.50 and y is 2.8-3.9.    DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of nickel-hydrogen storage battery.    Nickel-hydrogen storage battery (10)    Separator (13)    Positive electrode collector (14)    Negative electrode collector (15)    Armored can (16)