Varta Batterie Aktiengesellschaft

Eberhard Niggemann

Dietrich Sprengel

Uwe Kohler

Jurgen Heydecke

A prismatic electrochemical cell includes electrode plate blocks in which the stacked positive and negative electrode plates are separated by separators and are connected by current conductors to the corresponding terminal posts by crimping current conductors in the form of wires to collar-shaped portions of the terminal posts.

Electrochemical cell

A multicell storage battery, especially of the nickel/hydride type, is provided with pressure safeties for protection against high internal pressures. The pressure safeties respond at a preassigned critical pressure, causing mechanical changes in shape or through destruction which can be optically or electrically monitored. For example, a hinged lid is caused to swing up responsive to a rupture disk, interrupting a light beam. Alternatively, a rupture disk is coated with a conducting enamel and is connected by lead wires to form an electrical circuit which is interrupted responsive to damage of the enamel layer (e.g., responsive to bursting of the membrane).

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Kelkheim, Germany

Eberhard Niggemann