A process for the production of silicon-based anodes for secondary batteries

The invention relates to a process for the production of silicon-based anodes for secondary batteries, the secondary batteries consist of at least the anode of at least one electrolyte and a counter electrode. The following steps for manufacturing an anode (20) are carried out: - depositing a silicon layer (3) on a grain boundary (2) having metal substrate (1), wherein the silicon layer (3) to the metal substrate (1) directed a first interface (14), - heating the metal substrate (1) by means of a heating unit (22) to a temperature between 200 ° C and 1000 ° C, - annealing of the region of the metal substrate (1) facing away from the second boundary surface (15) of the silicon layer (3), by means of an energy-intensive irradiation during the heating - generating multiple phases in the region of the silicon layer (3) and of the metal substrate (1), consisting of amorphous silicon and / or crystalline silicon of the silicon of the silicon layer (3) and of crystalline metal of the metal substrate (1) and of silicide and - producing crystalline metal of the metal substrate (1).