A thermal management system (270) for rechargeable secondary batteries having an electrically insulating material (262) lining the interior of a metal case (260). One or more cell packs (24) made of individual cells (12) arranged within end frames (220) is disposed in the metal case (260). A thermally conductive granular filler (264) occupies the interstices (264A) between the individual cells (12) and the space between the cell pack and the electrically insulating material liner (262). The thermally conductive filler (264) decreases the thermal impedance from the cell pack (24) to the exterior surface of the metal case (260) to reduce cell pack temperature and increase battery life

A thermal management system (270) for rechargeable secondary batteries having an electrically insulating material (262) lining the interior of a metal case (260). One or more cell packs (24) made of individual cells (12) arranged within end frames (220) is disposed in the metal case (260). A thermally conductive granular filler (264) occupies the interstices (264A) between the individual cells (12) and the space between the cell pack and the electrically insulating material liner (262). The thermally conductive filler (264) decreases the thermal impedance from the cell pack (24) to the exterior surface of the metal case (260) to reduce cell pack temperature and increase battery life

A heat exchanger for battery cooling is provided to improve an efficiency of cooling of the current heat exchangers. The heat exchanger for battery cooling comprises an upper housing with a fluid inlet and a fluid outlet, a lower housing capable of hermetically connecting with the upper housing to form a chamber for accommodating fluid. The fluid flows into the chamber through the fluid inlet and then exits through the fluid outlet. The fluid chamber is provided with at least one S-shaped fluid directing element with several through holes. With the S-shape directing elements within the fluid chamber and the through holes formed on the directing elements, fluid can flow in an injecting manner within the chamber to realize effective cooling of the upper housing.

A battery system includes a battery module, a housing, a gas conveyor, and a gas sensor. The battery module is interconnected between a first system terminal and a second system terminal by a plurality of high current connectors, and the housing includes: a plurality of exterior walls enclosing the battery module and the plurality of high current connectors; and a partition wall within the housing. The gas conveyor is configured to circulate a gas flow through a flow channel loop formed within the housing by the partition wall and the exterior walls, and the gas sensor is arranged in the flow channel loop and is configured to detect an excess concentration of a gas species in the gas flow.

A battery cassette is disclosed. The battery cassette may include a frame including one or more hollow tubes. The battery cassette may further include a seal component having one or more hollow tubes aligned with the hollow tubes of the frame. The frame and the seal component may be configured to receive one or more battery cells in the hollow tubes.

A battery cassette is disclosed. The battery cassette may include a frame including one or more hollow tubes. The battery cassette may further include a seal component having one or more hollow tubes aligned with the hollow tubes of the frame. The frame and the seal component may be configured to receive one or more battery cells in the hollow tubes.

Thermal regulation device intended for at least one electrical component whose temperature must be regulated, the thermal regulation device including at last a housing, a cover affixed to said housing and a first circuit, configured to allow circulation of a dielectric fluid. The housing includes at least a plurality of lateral walls delimiting an internal volume of the housing in which at least the electrical component extends. The first circuit includes at least one dielectric fluid supply duct formed between the housing and the lid, at least one of the lateral walls and/or the bottom wall having at least one orifice for spraying the dielectric fluid into the internal volume, which is fluidically connected at least to the supply duct.

Thermal regulation device intended for at least one electrical component whose temperature must be regulated, the thermal regulation device including at last a housing, a cover affixed to said housing and a first circuit, configured to allow circulation of a dielectric fluid. The housing includes at least a plurality of lateral walls delimiting an internal volume of the housing in which at least the electrical component extends. The first circuit includes at least one dielectric fluid supply duct formed between the housing and the lid, at least one of the lateral walls and/or the bottom wall having at least one orifice for spraying the dielectric fluid into the internal volume, which is fluidically connected at least to the supply duct.

A housing cover is provided for placement on a housing lower part of a battery housing of a traction battery of an electrically driveable motor vehicle. The housing cover includes a cover layer for closing off a housing interior of the battery housing accommodating at least one battery cell, and a protection layer overlapping at least in part with the cover layer to withstand a thermal load caused by a supply of heat to the housing cover in the event of an emergency gassing of the at least one battery cell. The protection layer is mechanically connected in connection regions to the cover layer and is arranged in protection regions at a distance from the cover layer, thus forming a gap intended to increase a thermal transfer resistance between the protection layer and the cover layer.

A safety structure for a vehicle battery pack includes: a battery module each including a plurality of battery cells stacked between opposite endplates; a lower casing which covers a lower side of the battery modules that are two-dimensionally arrayed; an upper cover coupled to an upper side of the lower casing and covering an upper side of the battery modules; and first cut-off pads, each of which is made of a heat-resistant and insulating material, disposed in a portion where a gap between the endplate of the battery module and the lower casing becomes locally narrow.