Abstract: A protective device for battery cells, comprises a hazard receptacle (1) for the outgassing region (2) of a battery cell (3) and a protective receptacle (5) located opposite the hazard receptacle (1) in a main direction (4). An outgassing channel (6) extending transversely to the main direction (4) for discharging hot gas is provided between the hazard receptacle (1) and the protective receptacle (5). The hot gases from a battery cell are vented in the event of a malfunction so that damage to or displacement of the components by the kinetic and thermal energy of the hot gases is avoided as much as possible. A protective element (7), which in a rest position covers the hazard receptacle (1), can be displaced by escaping hot gas along a guide into a trigger position covering the protective receptacle (5).

Abstract: A device for electrically contacting a terminal pole (2) of a battery cell (3) comprises a fuse (1) that is electrically connected to the terminal pole (2) and to a contact point (4) spaced from the terminal pole (2) in a main direction (5). The electrical connection to the terminal pole is reliably disconnected at a predetermined overcurrent, regardless of any operating conditions or faults. The fuse (1), which is connected to the terminal pole (2) via a connecting conductor (6) and is spaced from the terminal pole (2) in the main direction (5) via a spacer, runs in an insulation area (7) which is separated in the main direction (5) by an insulating element (8) from a hazard area (9) that adjoins the connecting pole (2) and through which the connecting conductor (6) passes at least in sections.

Abstract: A device for breaking the electrical connection to a battery cell (1) in the event of outgassing has the cell pole (3) on the outgassing valve side connected to an electrical contact point (5) at a connection point (4) via a connecting lead (2) which forms a fuse. The device, requiring few components and having a compact design, enables a reliable electrical and thermal protection of neighboring cells of an outgassing battery cell against overloading and prevents the spread of a thermal runaway. The device provides a spacer (6) between the connection point (4) and the contact point (5) that electrically isolates the connection point (4) from the contact point (5) in the event of outgassing and that retains the cell pole (3).