ALKALINE PRIMARY BATTERY

摘要

Disclosed is an alkaline primary battery having excellent discharge characteristics while exhibiting excellent leakage resistance by suppressing gas generation due to over-discharge. Specifically disclosed is an alkaline primary battery comprising a positive electrode containing manganese dioxide and nickel oxyhydroxide as positive electrode active materials, a negative electrode containing zinc as a negative electrode active material, a separator arranged between the positive electrode and the negative electrode, and an alkaline electrolyte solution. This alkaline primary battery is characterized in that the average nickel valence of the nickel oxyhydroxide is 3.05-3.15 and the ratio of the negative electrode capacity to the positive electrode capacity is 1.0-1.2.