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The technology described concerns lithium-based alloy electrode materials used for the production of anodes in lithium storage batteries and methods for obtaining same. The alloy comprises metallic lithium, a metallic component X1 chosen from among magnesium and aluminium and a metal component X2 chosen from among the alkali metals, alkaline earth metals, rare earth metals, zirconium, copper, silver, bismuth, cobalt, zinc, aluminium, silicon, tin, antimony, cadmium, mercury, lead, manganese, boron, indium, thallium, nickel, germanium, molybdenum and iron. The methods for preparing electrode materials as well as products and their uses are also described.