The present disclosure relates to a method for producing an electrode plate of a rechargeable electrochemical battery that includes producing a substantially flat lead grid having a plurality of grid bars and a plurality of window-like cutouts formed between the grid bars, introducing an active material into the cutouts and/or onto the grid bars of the lead grid, creating a pattern of slot-shaped depressions in the active material by mechanically impacting the lead grid provided with the active material, where the depressions extend to a depth from the outer surface of the active material. The present disclosure further relates to installation of an electrode plate in a rechargeable electrochemical battery.