The present invention relates toa compact,zinc-polyaniline, of small size, which hasa zinc anode and an aqueous gel electrolyte, andwhich, in order to increase transport capacityand energy storage, is provided with acathodic current collector, consisting of aa mixture consisting of 100 parts by weight of powderpolyaniline incorporated in 8 ... 14 parts of ateflon dispersion as binder, which ismix with 9 ... 10 parts of graphite and powder13 ... 18 parts freshly prepared silica gel,this mixture being pressed on an electrodeporous graphite support.
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