AN ACCUMULATOR ELECTRODE WITH CAPACITY FOR STORING HYDROGEN, HAVING AN ACTIVE COMPONENT CONSTITUTING AT LEAST 40% BY WEIGHT OF THE ELECTRODE AND CONSISTING OF A HYDRIDE OF A METAL BELONGING TO THE THIRD, FOURTH OR FIFTH GROUP OF TRANSITION ELEMENTS. THE ELECTRODE FURTHER CONTAINS NICKEL, COPPER, SILVER, IRON OR CHROME-NICKEL STEEL ALLOYED WITH THE ACTIVE COMPONENT AND COMPRISES A METALLIC SUPPORTING STRUCTURE. A METHOD OF MANUFACTURING THIS ELECTRODE, COMPRISES PREPARING A METAL POWDER CONTAINING THE ACTIVE COMPONENT AND SAID OTHER METAL AND SINTERING SAID POWDER IN HYDROGEN AT 700 TO 1000*C.