A hydrogen-absorbing alloy electrode is prepared by reducing an oxide or
hydroxide residing on the surface of a hydrogen-absorbing alloy particle
while the alloy particle is held in an atmosphere of a hydrogen gas
maintained at a temperature where absorbing of a hydrogen gas does not
substantially occur; cooling the atmosphere from a temperature where
absorbing of the hydrogen gas does not substantially occur to a
temperature where the equilibrium hydrogen pressure of the
hyrogen-absorbing alloy is equal to the hydrogen pressure in the
atmosphere of the hydrogen gas and thereafter vacuum-evacuating and
removing the hydrogen gas so that the hydrogen-absorbing alloy particle is
cooled to room temperature while the hydrogen gas is exhausted; and
thereafter introducing argon, nitrogen or carbon dioxide gas into the
atmosphere, thereby returning the atmosphere to normal atmospheric
pressure; and immersing the hydrogen-absorbing alloy particle so prepared
in a solution containing an oxidation inhibiting agent.