ALKALINE SECONDARY BATTERY AND ITS MANUFACTURE

摘要

PURPOSE:To materialize super rapid charge by using a cadmium negative electrode plate in which nickel hydroxide or nickel oxide is used for a negative electrode active material, and by making the content of cadmium hydroxide in the negative electrode active material correspondent to the amount of a positive electrode active material. CONSTITUTION:Content of nickel hydroxide or nickel oxide in a negative electrode active material is defined as 2 to 60wt.% to the whole cadmium, while content of cadmium hydroxide in the negative electrode material is defined as 0.95 or less by weight ratio to nickel hydroxide of a positive electrode active material. If content of cadmium hydroxide of a negative electrode plate is defined as 0.95 times or less of the positive electrode active material by weight ratio, charge from a positive electrode is terminated or a rapid change in a negative electrode potential occurs before the termination of charge, thus the charge control is executed easily with good accuracy. Thereby, super rapid charge becomes possible.