Abstract: This electrochemical cell for a battery, comprises a first electrode of a first polarity, a first terminal of the first polarity, a second electrode of a second polarity, a second terminal of the second polarity, an envelope comprising two walls. The envelope comprises two first edges and two second edges forming an enveloping quadrilateral. The first terminal of the first polarity and/or the second terminal of the second polarity is disposed entirely within the enveloping quadrilateral. The two walls each comprise a metal base foil having a thickness of between 20 ?m and 150 ?m. The first terminal of the first polarity is arranged in a first corner of the enveloping quadrilateral and the second terminal of the second polarity is arranged in a second corner of the enveloping quadrilateral, different from the first corner.

Abstract: The invention relates to a battery cell comprising a bucket, a lid attached to the bucket, at least one first electrochemical bundle in the bucket, at least one first polarity collector. The first polarity collector is integral with the lid and defines at least one first welding surface located away from the bucket, to which the electrical connection tabs of the first electrodes of the first electrochemical bundle are welded. The cover comprises an upper part delimiting at least a first through opening located opposite the first welding surface in a direction of elevation. The battery cell further comprises a sealing device attached to the cover and designed to seal the first through opening.

Abstract: The present electrochemical element for a battery comprises a first electrode of a first polarity, a first connection member for the first polarity, a second electrode of a second polarity, a second connection member for the second polarity, and a casing comprising a first wall and a second wall. The casing comprises a first edge and a second edge which form an enveloping geometric shape having a corner. The first connection member and the second connection member are arranged completely within the enveloping geometric shape. The first connection member and the second connection member are arranged in a first corner of the enveloping geometric shape.

Abstract: A connection element for electrically, and mechanically connecting in a direction of connection, a first terminal of a first accumulator to a second terminal of a second accumulator, the first terminal and the second terminal protruding in a thickness direction, the connection element comprising a metal body having a first wing suitable for being welded onto the first terminal, a central part, and a second wing suitable for being welded onto the second terminal, the central part having a U-shape or a V-shape, the first wing and the second wing extending along the legs of the “U” or the “V”, respectively, the connection element being less prominent than, or at the same level in the thickness direction as at least one of the first terminal and of the second terminal.

Abstract: This electrochemical cell for a battery, comprises a first electrode of a first polarity, a first terminal of the first polarity, a second electrode of a second polarity, a second terminal of the second polarity, an envelope comprising two walls. The envelope comprises two first edges and two second edges forming an enveloping quadrilateral. The first terminal of the first polarity and/or the second terminal of the second polarity is disposed entirely within the enveloping quadrilateral. The two walls each comprise a metal base foil having a thickness of between 20 ?m and 150 ?m. The first terminal of the first polarity is arranged in a first corner of the enveloping quadrilateral and the second terminal of the second polarity is arranged in a second corner of the enveloping quadrilateral, different from the first corner.