Device for storing and / or providing electrical energy, connecting means for use in a device for storing and / or providing electrical energy and method for the production

摘要

Device for storing and / or providing electrical energy comprising electrically connected accumulator cells, in particular lithium-ion accumulators, in particular for electric bicycles and / or power tools and / or garden tools, comprising at least one electrically conductive connection means for the conductive connection between electrical contact surfaces, in particular an accumulator cell and a battery management system and / or a connection from a first Akkumulatorzellpol to a second Akkumulatorzellpol, wherein the connecting means comprises a flat body having at least one longitudinal axis, at least one body end of the connecting means is provided in each case at least one contact region, wherein the contact region of the connecting means at least a positively projecting region for contacting the electrical contact surface, wherein the positive projecting region has at least one longitudinal opening, so durc h the at least one longitudinal opening welds, in particular laser welding points, the connecting means with the electrical contact surface are spatially separated from each other.