Alkaline primary battery

An alkaline primary battery, comprising:

• a positive electrode containing manganese dioxide;
• an alkaline electrolyte containing zinc oxide;
• a gelled negative electrode containing zinc alloy particles, the alkaline electrolyte, and a gelling agent;
• a negative electrode current collector inserted in the gelled negative electrode;
• and
• a battery case containing the positive electrode, the alkaline electrolyte, the gelled negative electrode and the negative electrode current collector, wherein:
• the gelled negative electrode has a predetermined malleability such that when 4.0 g of the gelled negative electrode formed into a cylindrical shape with a diameter of 15 mm is extended with 200 g of a load through 10 g of a flat plate, and then an upper surface of the extended gelled negative electrode is approximated to a circle, this circle has a diameter ranging from 24 mm to 36 mm, both inclusive,
• the gelled negative electrode has a height L1 in the battery case and the negative electrode current collector inserted in the gelled negative electrode has a length L2, and
• a value L2/L1 is in the range from 0.42 to 0.65, both inclusive.