Abstract: A process for the manufacture of sintered metal bodies, comprising the steps of providing a mixture of a powdered metal or alloy and at least one pore-forming filler which is a fine grained salt, vaporizable at the sintering temperature of the metal or alloy, heating the mixture to the sintering temperature of the metal or alloy under vacuum, whereby the filler vaporizes from the metal to leave the porous sintered metal body behind, and recovering the porous sintered metal body is disclosed. The sintered metal bodies are particularly useful for production of battery electrodes.

Abstract: A process for the manufacture of electrodes suitable for electrolytic cells which comprises impregnating a porous matrix structure consisting of an electrode metal with an oxide or hydroxide of the metal by galvanic activation in a bath containing a salt of the metal, in neutral to acid solution, in which at least two porous metal matrix electrodes are placed into the bath and both are impregnated at the same time by applying one terminal of a direct voltage to each electrode and reversing the polarity of the direct voltage at a pulsating frequency. The invention is particularly applicable to the production of positive nickel electrodes.