Zweischicht-Formiermasse aus Nickelhydroxid und aus derselben Masse hergestellte positive Nickelelektrode

摘要

A double layered nickel hydroxide active material includes a core of nickel hydroxide including a first additive agent of low concentration (eg 0.5-4 wt%) and an outer layer of nickel hydroxide including a second additive agent of high concentration (eg 10-80 wt%), formed on the core. The first and second additive agents may be the same or different and are selected from cobalt, cadmium, zinc, calcium, magnesium and boron, preferably, cobalt. The nickel hydroxide material may be used on a collector in a nickel hydroxide positive electrode.