METHOD OF MANUFACTURING VALVE REGULATED LEAD ACID BATTERY, AND VALVE REGULATED LEAD ACID BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method capable of effectively suppressing dendrite short occurrence without impairing an output characteristic of a battery; and to provide a valve regulated lead acid battery.

SOLUTION: This method of manufacturing the valve regulated lead acid battery provided with an electrode plate group with a mat separator impregnated with and retaining an electrolyte arranged between a positive electrode plate and a negative electrode plate is characterized by including: a first charging step for injecting the electrolyte containing sulfuric acid into every unit cell with the electrode plate group composed of chemically non-converted electrode plates housed therein and charging the battery by a first charging current I1after the electrolyte injection; a storage step for leaving the battery on a shelf for a predetermined period after the first charging step; and a second charging step executed after the storage step for charging the battery by a second charging current I2smaller than the first charging current I1.

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