A battery pack, comprising: - at least two battery cells, wherein each battery cell has a positive and a negative electrical connection contact (33, 34), which are arranged on opposite sides of the battery cell, - wherein all electrically positive connection contacts of the battery cells are connected to a first connection structure, and all electrically negative connection contacts of the battery cells are connected to a second connection structure, wherein the first connection structure and the second connection structure are arranged on opposite sides of the battery pack, and wherein each connection structure has a current capacity which corresponds to the sum of the individual currents of each connected battery cell, - wherein each battery cell is connected to the first connection structure via at least one strip-shaped connection element (15, 51), respectively, and is connected to the second connection structure via at least one further strip-shaped connection element (15, 51), respectively, wherein a cross-section of the respective connection element (15, 51) is adjusted to a predetermined maximum current of a battery cell, - wherein a first, electrically non-conductive support structure is arranged on the side of the positive electrical connection contacts and a second, electrically non-conductive support structure is arranged on the side of the negative electrical connection contacts, - wherein each of the first and second support structure (12, 13) are equally formed, and each of the support structures (12, 13) comprises receiving openings for receiving at least a portion of the front side of each battery cell of the battery pack, - wherein the arrangement of the receiving openings in the first and second support structure (12, 13) is, respectively, defining a distance between the battery cells in order to enable sufficient ventilation between the individual battery cells of the battery pack, and wherein the battery cells between the first and second support structure (12, 13) are exposed, - wherein a length and width of the first and second connection structure essentially correspond, respectively, to a length and width of the first and second support structure (12, 13) and - wherein each of the first and second connection structure is shaped as a large, flat structure which form the respective outer and exposed and opposing surfaces of the battery pack, - wherein the connection elements (15, 51) are each fixed to a side of the connection structure facing the battery cells, respectively. - at least two battery cells, wherein each battery cell has a positive and a negative electrical connection contact (33, 34), which are arranged on opposite sides of the battery cell, - wherein all electrically positive connection contacts of the battery cells are connected to a first connection structure, and all electrically negative connection contacts of the battery cells are connected to a second connection structure, wherein the first connection structure and the second connection structure are arranged on opposite sides of the battery pack, and wherein each connection structure has a current capacity which corresponds to the sum of the individual currents of each connected battery cell, wherein the first connection structure and the second connection structure are arranged on opposite sides of the battery pack, and wherein each connection structure has a current capacity which corresponds to the sum of the individual currents of each connected battery cell, - wherein each battery cell is connected to the first connection structure via at least one strip-shaped connection element (15, 51), respectively, and is connected to the second connection structure via at least one further strip-shaped connection element (15, 51), respectively, wherein a cross-section of the respective connection element (15, 51) is adjusted to a predetermined maximum current of a battery cell, - wherein a first, electrically non-conductive support structure is arranged on the side of the positive electrical connection contacts and a second, electrically non-conductive support structure is arranged on the side of the negative electrical connection contacts, - wherein each of the first and second support structure (12, 13) are equally formed, and each of the support structures (12, 13) comprises receiving openings for receiving at least a portion of the front side of each battery cell of the battery pack, - wherein the arrangement of the receiving openings in the first and second support structure (12, 13) is, respectively, defining a distance between the battery cells in order to enable sufficient ventilation between the individual battery cells of the battery pack, and wherein the battery cells between the first and second support structure (12, 13) are exposed, - wherein a length and width of the first and second connection structure essentially correspond, respectively, to a length and width of the first and second support structure (12, 13) and - wherein each of the first and second connection structure is shaped as a large, flat structure which form the respective outer and exposed and opposing surfaces of the battery pack, - wherein the connection elements (15, 51) are each fixed to a side of the connection structure facing the battery cells, respectively.