Patents Assigned to DSL Dresden Material-Innovation GmbH
  • Publication number: 20090305142
    Abstract: The present invention relates to an electrode grid for a lead accumulator, comprising a grid substrate (1) and a coherent, galvanically deposited, multi-layer coating (2) on the grid substrate (1), wherein the grid substrate is produced from lead or lead alloy and the multi-layer coating comprises at least two layers which differ in respect of their composition, of which one layer (A) is produced by galvanic deposit of pure lead and one layer (B) which starting from the grid substrate is arranged over the layer (A) is produced by galvanic deposit of lead with at least 0.5% by weight and at most 2.0% by weight of tin.
    Type: Application
    Filed: August 7, 2006
    Publication date: December 10, 2009
    Applicants: Deutsche EXIDE GmbH, DSL Dresden Material-Innovation GmbH
    Inventors: Friedrich Kramm, Harald Niepraschk, Hans Warlimont, Thomas Hofmann
  • Patent number: 7097754
    Abstract: A continuous electroforming process to form a strip for battery electrodes, comprising the steps of providing a mandrel having on its surface a reusable pattern subdivided into conductive and non-conductive areas; moving said mandrel through an electroforming bath to deposit a metal layer on said mandrel while it moves through the electroforming bath until the metal layer has assumed the shape of the conductive pattern and a thickness at least sufficient to provide strength for the layer to be removed from said mandrel; and separating said layer from said mandrel; is characterised by moving said strip through at least one subsequent bath in which electrodeposition of metal takes place on both sides of said strip while it is moved through said subsequent bath, applying a current density of at least 10 A/dm2 and up to 300 A/dm2 to the conductive surface of the moving mandrel and to the metal surface of the strip in each of the subsequent baths; and directing a forced flow of electrolyte onto the surface of the
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: August 29, 2006
    Assignee: DSL Dresden Material-Innovation GmbH
    Inventor: Hans Warlimont