NOVELTY - The accumulator comprises voltage-generating cells (2), and a plate-shaped intermediate element (10), which has elastic ribs on both sides and is arranged between two voltage-generating cell. The ribs are moved on a side of the intermediate element against the ribs on another side of the intermediate element. The elastic ribs are directed related to the cross-section. The ribs adjoin on a cell and a groove between two ribs together with the cells limit a channel, which is equipped for guiding a gaseous or fluid heat carrier.    USE - Accumulator useful for electric vehicles.    ADVANTAGE - The accumulator can be manufactured with light weight and improves the performance of the vehicle.    DETAILED DESCRIPTION - The accumulator comprises voltage-generating cells (2), and a plate-shaped intermediate element (10), which has elastic ribs on both sides and is arranged between two voltage-generating cells. The ribs are moved on a side of the intermediate element against the ribs on another side of the intermediate element. The elastic ribs are directed related to the cross-section. The ribs adjoin on a cell and a groove between two ribs together with the cells limit a channel, which is equipped for guiding a gaseous or fluid heat carrier. The two cells and an intermediate element are adhered or screwed or pressed to each other by draw tape or drawbar, which produces a compressive pre-stressing. A carrier element, which is hollow is provided for guiding a gaseous or fluid heat carrier, where a cavity of the carrier element stands in connection with a channel. The carrier element comprises recesses and/or shell-shaped grooves for the reception of the cells. A circular intermediate element and/or L-shaped intermediate element and/or T-shaped intermediate element and/or I-shaped intermediate element and/or H-shaped intermediate element and/or shell-forming intermediate element are arranged between the cells.    DESCRIPTION OF DRAWING(S) - The figure shows an explosion representation of an accumulator.    Voltage-generating cells (2)    Intermediate element (10)    End element (11)    Cooling plate (12)    Cover plate. (13)