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method for stabilization of primary electrochemical cells medreaktive anodes of zinc, aluminium or magnesium, stabiliseretanode obtained by procedureand cells comprising such an anode
method for stabilization of primary electrochemical cells medreaktive anodes of zinc, aluminium or magnesium, stabiliseretanode obtained by procedureand cells comprising such an anode
The invention provides a method of stabilizing a primary electrochemical cell which includes at least one reactive anode made of a metal selected from the group constituted by zinc, aluminum, and magnesium, the method consisting in adding a stabilizer to said electrode, the stabilizer concentration lying in the range 0.001% to 1% by weight of electrode metal, and the stabilizer comprising at least one alkyl and polyethoxylalcohol sulfide satisfying the following formula: R-S-(CH2)2-(O-CH2-CH2-)n-OH (1) in which: R is an alkyl radical which may optionally be branched, an aryl radical, or an alkylaryl radical; and n lies in the range 2 to 100. The invention also provides an anode obtained by the above method, and a primary electrochemical cell having an alkaline or a saline electrolyte and including such an anode.
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