NOVELTY - The battery has one or multiple galvanic cells (Zx) i.e. lithium ion cells, arranged within a cell casing (107). A pressure-sensitive membrane (100) is formed as a part of the casing and deforms based on a difference in pressure (101) between an inner side (104) of the casing and an outer side (105) of the casing. A signal transmitter is arranged in a region of the membrane. One or multiple electrical switching elements e.g. relays or pyrotechnic switches, are operatively connected with the signal transmitter and formed to disconnect main electric current of the battery.    USE - Battery for use in a motor car (claimed).    ADVANTAGE - The design of the battery enables obviating displacement of the battery cell into an innocuous state and short circuit at an overloaded cell in case of loss, so that a current flow to other cells are avoided, thus protecting other cells before a false utilization. The design of the battery enables avoiding the need for high short circuit current with resulting interruption of an internal backup to deactivate the overloaded cell, thus protecting the overloaded against burden and thermal runaway. The battery can be protected against an inevitably intense arc at the backup, thus avoiding melting of a cell housing and a possibility of fire of electrolytes. The design of the battery enables avoiding a possibility of hazardous extents of electrochemical reactions at the deactivated cell.    DETAILED DESCRIPTION - The signal transmitter comprises a mechanical lever (103), an electrical contact element (106) and an electrical connection pole (Sx).    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a galvanic lithium ion element with an overpressure membrane.    Electrical connection pole (Sx)    Galvanic cells (Zx)    Pressure-sensitive membrane (100)    Pressure (101)    Mechanical lever (103)    Inner side of cell casing (104)    Outer side of cell casing (105)    Electrical contact element (106)    Cell casing (107)