Contact arrangement and electrical energy storage

Abstract

The invention relates to a contact arrangement for an electrical energy storage device with at least two individual cells (2) electrically connected by a cell connector (1). According to the invention, the cell connector (1) is at least partially arc-shaped, wherein a contact section of the cell connector (1) that electrically contacts an electrical pole contact (P) of an individual cell (2) has a circular segment (1.1) with a predetermined radius (r1), and adjacent to the circular segment (1.1) is a curved section (1.2) with a predetermined inner curvature (K1) and a predetermined outer curvature (K2), which are selected such that the curved section (1.2) corresponds to the circular segment (1.1) at a predetermined angle of curvature (Δ).1) widens oppositely in a plane, and the cell connector (1) is welded to the electrical pole contact (P) of the individual cell (2) by at least one weld seam (S1, S2) being applied along the outer curvature (K2) and / or along the inner curvature (K1) within a contact area between the cell connector (1) and the electrical pole contact (P). The invention further relates to an electrical energy storage device.

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