An energy storage module includes: a cover member accommodating a plurality of battery cells in an internal receiving space, each of the battery cells including a vent; a top plate coupled to a top of the cover member and including a duct corresponding to the vent of at least one of the battery cells; a top cover coupled to a top of the top plate and having an exhaust area corresponding to the duct, the exhaust area having a plurality of discharge openings, the top cover including a protrusion protruding from a bottom surface of the top cover, the protrusion extending around a periphery of the exhaust area and around a distal end of the duct; and an extinguisher sheet between the top cover and the top plate, the extinguisher sheet being configured to emit a fire extinguishing agent at a reference temperature.

A battery housing structure and a button battery. The battery housing structure comprises an upper cover and a bottom housing; the bottom housing mates with the upper cover to form a sealing cavity; the sealing cavity is used for mounting of a cell assembly; the bottom housing is provided with a first blind groove. The button battery comprises the cell assembly and the battery housing structure, and the cell assembly is provided in the sealing cavity.

The present invention concerns a fire safety arrangement for a battery. More particularly, but not exclusively, this invention concerns a fire safety arrangement for a metal ion battery, for example a lithium ion battery. A metal ion battery cell comprises a plurality of electrodes and an electrolyte encased within a housing. The housing comprises a safety valve or vent configured to allow gas build up within the housing to vent outside the housing. A fabric band surrounds the housing, such that the fabric band covers the safety valve or vent. This may allow gas to pass through the fabric band, but contain sparks generated by the battery cell within the fabric band.

A battery pack includes a pack case accommodating a first battery module and a second battery module, and a busbar including a first body portion fastened to the first battery module, a second body portion fastened to the second battery module, and at least one breakable portion disposed between the first body portion and the second body portion and fused at a temperature lower than those of the first body portion and the second body portion. The busbar includes an insulating cover covering the first and second body portions and the breakable portion, and a flameproof cover covering the insulating cover. At least a portion of the insulating cover covering the breakable portion is exposed to the outside of the flameproof cover.

The present disclosure relates to a battery module including: a battery cell stack in which a plurality of battery cells are stacked; and a pressure drop sheet on one side of the battery cell stack, in which the pressure drop sheet includes: a ventilation layer including ceramic fiber; and a sacrificial layer on at least one face of the ventilation layer, the sacrificial layer is disposed in a direction facing the battery cell stack, and the pressure drop sheet exhibits gas permeability at a critical temperature.

A system includes a battery mounting area, a venting area fluidly isolated from the battery mounting area, and a battery cell arranged at least partially within the battery mounting area. The battery cell includes at least one safety vent that is fluidly coupled to the venting area.

Embodiments of the present disclosure provide a battery, an electric device, a method for preparing a battery, and a device for preparing a battery. The battery comprises: a battery cell; a case, configured to accommodate the battery cell; and a protective member, provided in the case, wherein an end portion of the protective member is fixed to the case in a first direction, an electrode terminal is formed at at least one end of the battery cell in a second direction, and the second direction is perpendicular to the first direction; the protective member has a protective portion, the protective portion is supported on the case in the second direction, and the protective portion protrudes beyond the electrode terminal in the second direction, so that the electrode terminal and the case have a gap in the second direction, so as to protect the electrode terminal.

Embodiments of the present disclosure provide a battery, an electric device, a method for preparing a battery, and a device for preparing a battery. The battery comprises: a battery cell; a case, configured to accommodate the battery cell; and a protective member, provided in the case, wherein an end portion of the protective member is fixed to the case in a first direction, an electrode terminal is formed at at least one end of the battery cell in a second direction, and the second direction is perpendicular to the first direction; the protective member has a protective portion, the protective portion is supported on the case in the second direction, and the protective portion protrudes beyond the electrode terminal in the second direction, so that the electrode terminal and the case have a gap in the second direction, so as to protect the electrode terminal.

A ventilation component (1a) is to be attached to a housing (2) at a ventilation opening (5). The ventilation component (1a) includes a gas-permeable membrane (10), a ventilation valve (20), and a structural member (30). The structural member (30) has an inner space (40), and at least one of a first ventilation path (51) and a second ventilation paths (52). The inner space (40) is a space accommodating the gas-permeable membrane (10) and/or the ventilation valve (20). The first ventilation path (51) allows the inner space (40) to communicate with an external space of the ventilation component (1a). The first ventilation path (51) has a first inner opening (51i) and a first outer opening (51e), and the first inner opening (51i) faces the first outer opening (51e). The first inner opening (51i) and the first outer opening (51e) are present along a plane parallel to an outer surface (2s) of the housing. The second ventilation path (52) has a second inner opening (52i) and a second outer opening (52e), and the second inner opening (52i) is present without facing the second outer opening (52e).

The present disclosure relates to a battery module including at least one battery unit array structure, an upper cover, a lower cover and a fireproof component disposed vertically. Each battery unit array structure includes a plurality of battery units and a plurality of busbars electrically connected to the plurality of battery units. The battery unit array structure is disposed between the upper cover and the lower cover. Each battery unit of each battery unit array structure is provided with a vent facing towards the fireproof component. Different from the related art, when thermal runaway occurs in a battery unit according to the present disclosure, flame and high-temperature particles ejected from a vent of a battery unit are blocked by the fireproof component from burning adjacent battery units, thereby preventing the thermal runaway in the other battery units from being triggered by the existing thermal runaway.