Abstract: A spring contact is compressed against and electrically connected to a terminal of a dry cell battery, and the spring-like compressive force between the contact and the terminal is maintained by an adhesive. The spring contact and adhesive may be used with both single cell and multicell batteries. The spring may be situated between two cells of a multicell battery, with the adhesive adhering the two cells together and maintaining the spring-like compressive force between the contact and the terminals of the adjacent two cells. The terminal which is electrically connected with the spring contact may be a thin foil of metal, and the inner surface of the foil may serve as the negative electrode of a cell; the foil may be a metal selected from the group consisting of a zinc, magnesium, lead, aluminum and alloys thereof. The spring contact may have a burr where it electrically connects with the terminal.

Abstract: The invention relates to electrochemical cells intended to be electrically connected up in series. Such a connection is obtained by means of a mechanical link between the terminals of opposite polarities of two adjacent cells. That mechanical link may be formed by a spring-catch system, screwing or locking. The invention applies more particularly to cylindrical electric cells.

Abstract: a battery formed of a plurality of disc-shaped cells of substantially the same voltage, connected in series and encased by an electrically nonconductive sheath to form a cylindrical unit having a positive terminal at one end and a negative terminal at the other end. The sheath contains an orientation groove for locating the battery in a predetermined orientation in a receiving compartment.