FIELD: electrochemistry, more particularly manufacture of electrolyzers for preparing chlorine and alkali, fuel cells and storage batteries. SUBSTANCE: silver, tungsten, molybdenum sulfide or mixture thereof is deposited inside of polymeric membrane, complex of silver, tungsten, molybdenum or mixtures thereof with SH- containing water soluble compound being first formed. This complex is then transferred into insoluble sulfide of said compounds. EFFECT: increased selective permeability of the membrane. 9 cl, 4 ex, 2 dwg
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