US 12,424,709 B2
Battery electric system with multi-level busbar
Robert H. Dietze, Brighton, MI (US); Tyler J. Murphy, Bloomfield, MI (US); and Daniel J. Casoli, Howell, MI (US)
Assigned to GM Global Technology Operations LLC, Detroit, MI (US)
Filed by GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed on Feb. 11, 2022, as Appl. No. 17/669,694.
Prior Publication US 2023/0261330 A1, Aug. 17, 2023
Int. Cl. H01M 50/507 (2021.01); H01M 50/204 (2021.01); H01M 50/516 (2021.01); H01M 50/522 (2021.01); H01M 50/536 (2021.01)
CPC H01M 50/507 (2021.01) [H01M 50/204 (2021.01); H01M 50/516 (2021.01); H01M 50/522 (2021.01); H01M 50/536 (2021.01); H01M 2220/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A multi-level busbar for interconnecting flexible cell tabs within a battery module of a battery electric system, comprising:
a first busbar surface arranged at a first level of the multi-level busbar, and welded to a first tab group of the flexible cell tabs;
a second busbar surface arranged at a second level of the multi-level busbar, and welded to a second tab group of the flexible cell tabs; and
an elongated step transition that extends between the first level and the second level, wherein the elongated step transition has a height dimension that allows the first tab group and the second tab group to overlap when the first tab group and the second tab group are folded onto the multi-level busbar.