A method and apparatus for extruding materials, including electrolytically active materials, onto metallic substrates used in the production of electrodes. The method and apparatus facilitates the production of improved electrodes for use in energy storage devices, such as rechargeable batteries. A preferred device may include a base, a spreader, edge guides and wipers. The wipers, or doctor blades, clean a portion of the substrate during the extrusion process. This provides a clean edge on which a current collector can be welded. The clean edge enables an electrode that is more reliable, more easily used during the battery manufacturing process, and may also provide for lower internal resistance of the energy storage cell.