Alkaline primary battery

摘要

An alkaline primary battery includes: a positive electrode 2 containing manganese dioxide; an alkaline electrolyte containing zinc oxide; a gelled negative electrode 3 containing zinc alloy particles, the alkaline electrolyte, and a gelling agent; and a negative electrode current collector 6 inserted in the gelled negative electrode. The gelled negative electrode 3 has a predetermined malleability such that when 4.0 g of the gelled negative electrode 3 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 3 is approximated to a circle, this circle has a diameter ranging from 24 mm to 36 mm, both inclusive.

主权项

1. 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.