Battery system and method of producing a battery system

1. A battery system comprising:

a plurality of battery cells, each of the plurality of battery cells having a plurality of poles;

a covering plate arranged over the battery cells and which includes a plurality of receiving regions, each of the receiving regions extending across the plurality of battery cells and having a first holding surface at a face of the covering plate that is adjacent to the battery cells and a second holding surface at a face of the covering plate that is remote from the battery cells;

a plurality of cell connectors respectively extending through the receiving regions and which are in electrical communication with the battery cells, each of the cell connectors being in direct contact with one of the poles of each of the plurality of battery cells; and

an insertion opening provided on an end side of the covering plate and configured to receive at least one of the cell connectors,

the cell connectors respectively being held between the first holding surface and the second holding surface by the first holding surface and the second holding surface, the cell connectors directly contacting the first holding surface and the second holding surface, and

the second holding surface comprising a plurality of openings that expose the cell connectors, the plurality of openings being arranged at a first side of the cell connectors and the plurality of battery cells being arranged at a second side of the cell connectors opposite to the first side.

2. The battery system of claim 1 , wherein the first holding surface has a first extension and a second extension that lies opposite the first extension such that the cell connectors on the first holding surface are connected to the battery cells on edges of the cell connectors by the first and second extensions.

3. The battery system of claim 2 , wherein the cell connectors are in electrical communication to the poles of the battery cells at the center of the cell connectors.

4. The battery system of claim 3 , wherein the first extensions are shorter than the second extensions.

5. The battery system of claim 4 , wherein the first and second extensions are arranged in a first row of a group of the receiving regions in such a manner that is symmetric to the first and second extensions in a second row of another group of the receiving regions that is adjacent to the first row.

6. The battery system of claim 1 , wherein the receiving regions are arranged next to one another in at least two rows.

7. The battery system of claim 6 , wherein the insertion opening is arranged perpendicular to one of the rows of the receiving regions.

8. The battery system of claim 6 , wherein the insertion opening is arranged in a direction of one of the rows of the receiving regions.

9. The battery system of claim 1 , wherein the second holding surface is movable relative to the first holding surface.

10. The battery system of claim 1 , wherein the second holding surface has a hinge connection to permit movement about a hinge axis relative to the first holding surface.

11. The battery system of claim 1 , further comprising a plurality of non-conductive separating elements arranged between adjacent ones of the receiving regions.

12. The battery system of claim 1 , further comprising a voltage tapping unit having measuring lines.

13. The battery system of claim 12 , wherein the measuring lines are in electrical communication with the cell connectors in a detachable manner.

14. The battery system of claim 12 , further comprising a clamping connection configured to establish a detachable electrical communication between the measuring lines and the cell connectors.

15. The battery system of claim 14 , wherein ends of the measuring lines comprise contact surfaces that are clamped between the cell connectors and one of the first holding surface and the second holding surface.

16. The battery system of claim 14 , wherein the measuring lines are detachably fixed to the covering plate.