A battery housing includes at least one membrane-like degassing element which is designed to yield when a hot gas of the at least one battery cell is released into an interior of the battery housing, and in so doing to open up a degassing opening in the housing wall for discharging the hot gas from the interior to an area surrounding the battery housing, and at least one protective cap which, for protecting the at least one degassing element against environmental influences, is arranged on an outer side of the housing wall in a manner overlapping the at least one degassing element and which is fastened to the housing wall by way of a holding device, wherein the holding device is designed to yield, and to completely release the protective cap from the degassing opening, when the hot gas is discharged via the at least one degassing element.

A battery housing includes at least one membrane-like degassing element which is designed to yield when a hot gas of the at least one battery cell is released into an interior of the battery housing, and in so doing to open up a degassing opening in the housing wall for discharging the hot gas from the interior to an area surrounding the battery housing, and at least one protective cap which, for protecting the at least one degassing element against environmental influences, is arranged on an outer side of the housing wall in a manner overlapping the at least one degassing element and which is fastened to the housing wall by way of a holding device, wherein the holding device is designed to yield, and to completely release the protective cap from the degassing opening, when the hot gas is discharged via the at least one degassing element.

A battery pack has a plurality of battery stacks, a case, and a thermal insulation cover. The case accommodates the plurality of battery stacks. The thermal insulation cover is arranged so as to expose an outer surface of at least one battery stack from among the plurality of battery stacks inside the case, and to cover an outer surface of a battery stack that is adjacent to the exposed battery stack. A difference obtained by subtracting an amount of removed heat from an amount of heat generated during heat generation is greater in the battery stack that is exposed from the thermal insulation cover than in the battery stack that is covered by the thermal insulation cover.

The present invention relates to a battery cell. The battery cell comprises: an electrode assembly provided with an electrode tab; a case which accommodates the electrode assembly and of which at least a portion of an edge is sealed to provide a sealing surface; an electrode lead coupled to the electrode tab and led out of the case; a lead film disposed on each of top and bottom surfaces of the lead electrode disposed on the sealing surface of the case and coupled together with the sealing surface; and a main gas discharge tube disposed in the case and having one end buried in the lead film.

The present invention relates to a battery cell. The battery cell comprises: an electrode assembly provided with an electrode tab; a case which accommodates the electrode assembly and of which at least a portion of an edge is sealed to provide a sealing surface; an electrode lead coupled to the electrode tab and led out of the case; a lead film disposed on each of top and bottom surfaces of the lead electrode disposed on the sealing surface of the case and coupled together with the sealing surface; and a main gas discharge tube disposed in the case and having one end buried in the lead film.

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).

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).

A fuel cell system mounted on a vehicle includes a fuel cell, a humidity sensor configured to detect a humidity in a vehicle cabin of the vehicle, a cathode off-gas exhaust passage through which cathode off-gas emitted from the fuel cell is exhausted to outside the vehicle, an introducing port for cathode off-gas, provided in the cathode off-gas exhaust passage, a cathode off-gas introducing unit configured to introduce cathode off-gas emitted from the fuel cell, into the vehicle cabin of the vehicle via the introducing port, and a cathode off-gas introducing amount control unit configured to control an amount of the cathode off-gas introduced into the vehicle cabin of the vehicle in accordance with a humidity in the vehicle cabin of the vehicle, detected by the humidity sensor.

Abstract: A battery device (3) is provided. The battery device comprises a casing having a plurality of sides (10a-10f) including a bottom side, a top side opposite to said bottom side, two lateral sides, a front side, and a rear side opposite to said front side, wherein the plurality of sides are assembled to form a sealed container, and a battery cell pack (20) located within the sealed container. The casing comprises at least one outlet (31) arranged at at least one of the plurality of sides. The sealed container is configured to prevent heated gases generated upon a malfunction of the battery cell pack from escaping the casing except via the at least one outlet. The battery device further comprises a filter (13) arranged at said at least one outlet for limiting at least flames from escaping the casing, and terminals for connection of the battery device to a load, another battery device or an external power source, arranged at the front side, and wherein said at least one outlet is arranged at the rear side of the casing.

A cell includes an electrode assembly and a tab electrically connected to the electrode assembly, the packaging housing includes a housing body, a cover, and a polymer layer. The housing body is provided with an accommodating portion, where the accommodating portion is configured to accommodate the electrode assembly, the tab extends from the accommodating portion to the outside of the housing body, and the housing body is further provided with a first sealing portion extending from an edge of an opening of the accommodating portion to the outside of the housing body along a first direction. The cover is provided with a second sealing portion extending along the first direction. The cover covers the opening of the accommodating portion, and the first sealing portion and the second sealing portion are disposed opposite to each other. The polymer layer is disposed between the first sealing portion and the second sealing portion.