Patent ID: 7393612

Claim:
A method of manufacturing an alkaline secondary battery, the method comprising assembling a battery unit comprising an alkali electrolyte and a positive electrode; partial charging the battery unit with a partial charge in a range of from 5 to 20% of a full charge of the battery unit; and aging the battery unit, wherein a ratio of the volume of the alkali electrolyte to a theoretical capacity of the positive electrode is in a range of from 0.7 cm 3 /Ah to 2.0 cm 3 /Ah; the positive electrode contains first particles, a coating around the first particles, and second particles in the coating that have a smaller diameter than the first particles, that are adhered directly to the first particles, and that protrude from the coating or are exposed at the same level as the coating; the first particles comprise nickel hydroxide exhibiting a peak corresponding to a (101) plane and having a half-width of 0.8° or more as measured by X-ray powder diffraction (2θ) using Cu—Kα rays, and at least one selected from the group consisting of zinc and zinc compounds in an amount of 4 to 15% by weight calculated as zinc and based on the nickel hydroxide; the second particles are plated with nickel and comprise iron; and the coating comprises a conductive material comprising at least one selected from the group consisting of cobalt and cobalt compounds.