SEALED NICKEL-HYDROGEN STORAGE BATTERY USING HYDROGEN ABSORBING ALLOY

摘要

PURPOSE:To make it possible to elongate the life of a sealed nickel-hydrogen storage battery by using a positive electrode and a negative electrode made by the specified manufacturing method and controlling the battery capacity by means of the positive electrode capacity. CONSTITUTION:The storage battery presented here is composed of the combination of a positive electrode 1 and a negative electrode 2 whose compositions are as follows: the positive electrode 1 is an unformed one to which is added beforehand the appropriate quantity of cobalt or cobalt oxide being not discharged after electrochemical charge, and the negative electrode 2 is an alloy one that hydrogen-absorbing alloy is only filled in or coated on a supporter. Since the alloy negative electrode has yet some residual discharge power after the complete discharge of the battery, the battery capacity is controlled by means of the positive electrode capacity. The life of the battery can thereby be elongated.