FIELD: electrochemical cells. SUBSTANCE: hydrogen and oxygen catalytic electrodes are partially or wholly submerged in electrolyte separated by partition into cathode and anode spaces. Hydrogen electrode is made from soldered thin plates of platinum and sodium. External surface of platinum is dispersed and external surface of sodium with thin layer of sodium hydride and isolated from ambient medium by silver coating. Oxygen electrode is made from soldered thin plates of hafnium and platinum. External surface of hafnium is dispersed and that of platinum is coated with thin layer of platinum oxide and isolated from ambient medium with silver coating. EFFECT: simplification of electrodes manufacture.
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