Cell connectors of battery packs with lithium-ion cells and method for producing a cell connection by means of the cell connectors in battery packs

摘要

The object of the invention is to provide a cell connector which has better conductivity against nickel bands or hilum bands and to provide a favorable connection method between the individual cell and the cell connector. As a cell connector (1) is preferably used for cylindrical cells (4) a single- or double-sided copper-clad board (1) with a flexible base material of 0.8 mm to 1 mm thickness and a lining thickness of preferably 35 microns. The cell connectors (1) have on the cells (4) adapted through holes (2) with a diameter between 1 mm to 10 mm. In the preferred method, a spot welding method is proposed. On the through holes (2) of the cell connector (1) as large sheet nickel plates (3) or Hilumintäfelchen (3) are placed so that preferably a 4-fold Punktverschweißung, each offset by 90 degrees, can take place. Subsequently, these cell connectors (1) with the side of the welded-on sheet metal sheets (3) or Hilumintäfelchen (3) centrally placed on the top or bottom of the cells (4) corresponding to the desired electrical circuit in the battery pack and through the through holes (2) in the cell connector (1) Spot welding of the nickel sheet (3) or hilumine (3) with the desired cell (4).