US 9,812,698 B2
Method for manufacturing a connecting contact for an electrode of an electrochemical store, method for manufacturing an electrochemical store, and electrochemical store
Sonja Dudziak, Bietigheim-Bissingen (DE); Reiner Ramsayer, Rutesheim (DE); Jens Koenig, Markgroeningen (DE); Michael Guyenot, Ludwigsburg (DE); Rico Bauer, Windischenbach (DE); and Sebastian Fritz, Stuttgart (DE)
Assigned to ROBERT BOSCH GMBH, Stuttgart (DE)
Filed by Robert Bosch GmbH, Stuttgart (DE)
Filed on Jul. 24, 2013, as Appl. No. 13/949,797.
Claims priority of application No. 10 2012 213 420 (DE), filed on Jul. 31, 2012.
Prior Publication US 2014/0038013 A1, Feb. 6, 2014
Int. Cl. H01M 4/04 (2006.01); H01M 2/26 (2006.01); H01M 2/02 (2006.01); H01M 10/052 (2010.01)
CPC H01M 4/045 (2013.01) [H01M 2/26 (2013.01); H01M 2/0257 (2013.01); H01M 2/263 (2013.01); H01M 10/052 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for manufacturing a connecting contact for an electrode of an electrochemical store, wherein the electrode has a first material, the method comprising:
providing a contact element in the form of a bar, wherein:
at a first section of the bar, the bar includes an inner core made of a second material and includes a coating that is formed of the first material and that circumferentially surrounds the inner core;
the bar includes a second section that, with respect to a direction in which the bar longitudinally extends, follows the first section;
the inner core and the second section are integrally formed as a single component; and
at the second section, the bar is formed entirely of the second material; and
electrically and mechanically connecting the coating of the contact element to the electrode, wherein the first section is welded to the electrode and the bar is not welded to the electrode at the second section.