The invention relates to an assembly composed of at least one galvanic cell and at least two frame elements, wherein one galvanic cell is respectively disposed between two frame elements, wherein the assembly forms a stack and has a tensioning device for bracing the assembly in the direction of the stack; wherein the galvanic cell comprises a flat main body and at least two current conductors, said main body having two flat sides and peripheral narrow sides; wherein each frame element comprises a plurality of, preferably four, beams connected to each other in a closed configuration and defining a free space therebetween; wherein the main body of the galvanic cell is received in the free space of two adjacent frame elements; and wherein at least in the region of the narrow sides of the main body, preferably beyond an edge in which the narrow sides transition into a flat side of the galvanic cell, the cross-sections of sections of the frame elements that face toward the free space are designed to follow the contour of the main body of the galvanic cell. In such a way, the galvanic cell can be laterally supported on the frame elements.