Electrical battery comprising: a plurality of battery cells, each comprising an anode and a cathode, wherein a thin film comprising at least one temperature control device is arranged between the battery cells, characterized in that the thin film comprises a plurality of anode contacts adapted to electrically contact the anodes of the battery cells, comprises a plurality of cathode contacts adapted to electrically contact the cathodes of the battery cells, is adapted to ensure an electrical contact simultaneously between the anode contacts and the anodes, and between the cathode contacts and the cathodes, wherein the thin film comprises a plurality of layers (8a, 8b, 8c) comprising at least a first layer comprising an electrically conductive portion and a second layer comprising an electrically conductive portion and is placed in a meandering pattern between the battery cells, whereas a straight section of the meandering pattern is placed between two successive battery cells and whereas the bent section of the meandering pattern ensures an electrical contact with each of two specific collecting faces of the battery cells, and that the temperature control device comprises at least one Peltier element (27, 28, 30) integrated in the straight section of the meandering pattern of the thin film, wherein the thin film comprises at least one electrical circuit to address the one or more Peltier elements (27, 28, 39). a plurality of battery cells, each comprising an anode and a cathode, wherein a thin film comprising at least one temperature control device is arranged between the battery cells, characterized in that the thin film comprises a plurality of anode contacts adapted to electrically contact the anodes of the battery cells, comprises a plurality of cathode contacts adapted to electrically contact the cathodes of the battery cells, is adapted to ensure an electrical contact simultaneously between the anode contacts and the anodes, and between the cathode contacts and the cathodes, comprises a plurality of anode contacts adapted to electrically contact the anodes of the battery cells, comprises a plurality of cathode contacts adapted to electrically contact the cathodes of the battery cells, is adapted to ensure an electrical contact simultaneously between the anode contacts and the anodes, and between the cathode contacts and the cathodes, wherein the thin film comprises a plurality of layers (8a, 8b, 8c) comprising at least a first layer comprising an electrically conductive portion and a second layer comprising an electrically conductive portion and is placed in a meandering pattern between the battery cells, whereas a straight section of the meandering pattern is placed between two successive battery cells and whereas the bent section of the meandering pattern ensures an electrical contact with each of two specific collecting faces of the battery cells, and that the temperature control device comprises at least one Peltier element (27, 28, 30) integrated in the straight section of the meandering pattern of the thin film, wherein the thin film comprises at least one electrical circuit to address the one or more Peltier elements (27, 28, 39).