ALKALINE BATTERY, PRODUCTION METHOD OF ALKALINE BATTERY, AND APPLIED PRODUCT USING ALKALINE BATTERY

摘要

This invention relates to an alkaline battery in which hydrogen gas evolution and deterioration of battery performance can be prevented by using a collector having an outermost layer coated with zinc or metal having a higher hydrogen overvoltage than that of zinc and adding an inhibitor selected from an indium compound, lead oxide, a hydroxide of alkaline earth metal and polyoxyethylen alkylamide to an electrolyte solution or a negative electrode active material. According to the present invention, it is possible to manufacture an alkaline battery in which evolution of hydrogen can be restrained without involving deterioration of battery performances. Especially, the present invention is effective in a coin type and a button type battery which is sensitive to the evolution of gas and is required to have high performance. Further, the inventive collector which is plated with zinc alloy more than 3 mu m in thickness and used for low drain such as watches can attain a capacity equivalent to or more than that of a battery using amalgamated zinc. Further, watches loaded with the inventive alkaline batteries which are discarded do not pollute the environment, as they do not include mercury to be a pollution material.