Abstract: A plug-in connector and a semi-finished product include a strip of an aluminum alloy and at least one bonding layer of a copper/tin alloy electrolytically applied directly onto the aluminum alloy strip. The bonding layer has a thickness of at most 50 nm. A further metal layer or alloy layer is applied onto the bonding layer.

Abstract: The present invention relates to a cell contacting arrangement for an energy storage module having a plurality of electrochemical storage cells, each storage cell having at least two electric connection terminals, the arrangement comprising: a carrier plate which is mountable on the energy storage module, and at least one cell connector inserted into the carrier plate for connecting at least two of the connection terminals of different storage cells, the carrier plate comprising at least one catch spring having a detent for fixing the cell connector in the carrier plate.

Abstract: A high-current (HC) plug-in connector for currents exceeding 100 A, in particular 200 A, is provided. The high-current (HC) plug-in connector may include a first connecting element having a first contact section, and a second connecting element having a second contact section. Furthermore, a spring element is provided for establishing an electrical connection between the first and the second connecting element. The spring element may include at least two clamping elements which are interconnected via at least one web, the web and respective first sections of the clamping elements being arranged on a first outer surface of the connection formed by the first and the second contact section, and second sections of the clamping elements being arranged at least in part on a second outer surface opposite the first outer surface.

Abstract: A connection system (1) for an energy storage device (2), wherein the energy storage device (2) comprises a plurality of cells (3), with a plurality of cell connectors (4) for electrical interconnection of the cells (3), with a storage control unit (15) for monitoring an energy supply and/or charging condition of the cells (3), with a plurality of control lines (17) for transmitting electrical signals between the cell connectors (4) and the storage control unit (15), wherein at least one of the cell connectors (4) and at least one control line (17) associated with said cell connector (4) are manufactured as a transmission element (5), jointly from a semi-finished product (6).