Solitary a battery, having a plurality of individual cells and methods for producing a frame for the single cell

Single cell (3), are arranged with a housing in which an electrolyte and an electrochemically active electrode foil unit (9) of a battery which is constructed as a flat cell, wherein the housing comprises two side parts (7) of metal, between which a frame (2 ), is arranged from the plastic insulated from each other, the side parts (7) and a diffusion of electrolyte through the frame at least reducing diffusion barrier electrolyte (that in or on the frame (2) 1) made of metal.