Button-type alkaline battery

A button-type alkaline battery comprising a positive electrode containing manganese dioxide and a hydrogen occluding alloy, a negative electrode containing zinc or zinc alloy, a positive electrode can in which the positive electrode is disposed, a negative electrode can in which the negative electrode is disposed, a gasket put between the positive electrode can and the negative electrode can, a separator for separating the positive electrode and the negative electrode, and an alkali electrolyte.

A button-type alkaline battery comprising a positive electrode containing manganese dioxide and a hydrogen occluding alloy, a negative electrode containing zinc or zinc alloy, a positive electrode can in which the positive electrode is disposed, a negative electrode can in which the negative electrode is disposed, a gasket put between the positive electrode can and the negative electrode can, a separator for separating the positive electrode and the negative electrode, and an alkali electrolyte, wherein a hydrogen gas evolved inside the battery is occluded by the hydrogen occluding alloy.

A button-type alkaline battery comprising a positive electrode containing manganese dioxide and a hydrogen occluding alloy, a negative electrode containing zinc or zinc alloy, a positive electrode can in which the positive electrode is disposed, a negative electrode can in which the negative electrode is disposed, a gasket put between the positive electrode can and the negative electrode can, a separator for separating the positive electrode and the negative electrode, and an alkali electrolyte, wherein a hydrogen gas evolved inside the battery is occluded by the hydrogen occluding alloy, thereby preventing increase of the pressure inside the battery.