A battery including a swelling sensing unit. The battery includes a case and an electrode assembly in the case. The battery further includes a film on a surface of the battery. The film includes a predetermined amount of elasticity or having substantially no elasticity.

A cooling type housing (100) for housing a heating element (50) inside, including: an assembled metal housing (10); and a cooling flow path (30) provided at least on one surface (10A) of the metal housing (10), in which a heat medium flows, in which the cooling flow path (30) constitutes at least a part of the one surface (10A) of the metal housing (10).

A cooling type housing (100) for housing a heating element (50) inside, including: an assembled metal housing (10); and a cooling flow path (30) provided at least on one surface (10A) of the metal housing (10), in which a heat medium flows, in which the cooling flow path (30) constitutes at least a part of the one surface (10A) of the metal housing (10).

A power storage module includes an array including power storage devices each having first and second surfaces opposite to each other in a first direction, a first restraint member facing the first surface of each power storage device, and a second restraint member facing the second surface of each power storage device. Dimensions of the power storage devices in a second direction perpendicular to the first direction are larger than respective dimensions of the power storage devices. The power storage devices are arranged in a third direction perpendicular to the first and second directions. The first restraint member extends in the third direction and restrains the array in the third direction. The second restraint member extends in the third direction and restrains the array in the third direction. At least one of the first and second restraint members has a hole therein. The hole is a recess falling in the first direction or a through-hole passing through the restraint member in the first direction.

A battery module has a structure capable of preventing spread of flames when fire breaks out in the battery module, and more particularly a battery module including a plurality of battery cell module assemblies, each of the battery cell module assemblies including battery cells arranged in tight contact with each other, a side plate electrically connected to electrode leads of the battery cell module assemblies, a duct disposed outside the side plate, and a gas cutoff structure disposed in the duct, wherein the plurality of battery cell module assemblies is disposed so as to have a space therebetween.

This disclosure details exemplary battery pack designs for use in electrified vehicles. Exemplary battery packs may include a battery array that includes one or more interconnected array frames. A split thermal fin may be held within the one or more array frames. The proposed designs of the split thermal fin enable a reduction of the amount of thermal interface material required between the thermal fin and a support structure (e.g., a heat exchanger plate) of the battery pack.

A battery housing for a drive battery, comprising at least one housing shell, wherein the housing shell is formed at least partially or fully from a thermoplastic, wherein the housing shell has a receiving region for insertion of a drive battery, wherein the housing shell has a wall, wherein the wall has a two-layer or multi-layer sandwich structure, wherein at least a first layer of the sandwich structure, at least in some sections, is distanced from a second layer of the sandwich structure such that a wall cavity is formed between the first layer and the second layer, and wherein the wall cavity is designed to store a cooling medium.

A battery housing for a drive battery, comprising at least one housing shell, wherein the housing shell is formed at least partially or fully from a thermoplastic, wherein the housing shell has a receiving region for insertion of a drive battery, wherein the housing shell has a wall, wherein the wall has a two-layer or multi-layer sandwich structure, wherein at least a first layer of the sandwich structure, at least in some sections, is distanced from a second layer of the sandwich structure such that a wall cavity is formed between the first layer and the second layer, and wherein the wall cavity is designed to store a cooling medium.

Presented are thermomechanical fuses for mitigating heat propagation across electrochemical devices, methods for making and methods for using such fuses, and traction battery packs with load-bearing, sacrificial thermomechanical fuses to help prevent thermal runaway conditions. A battery assembly includes an electrically insulating battery housing with multiple battery cells disposed inside the battery housing. These battery cells are electrically interconnected, in series or parallel, and stacked in side-by-side facing relation to form adjacent, mutually parallel stacks of battery cells. Thermomechanical fuses thermally connect neighboring stacks of the battery cells. Each thermomechanical fuse is formed, in whole or in part, from a dielectric material that undergoes deterioration or deformation at a predefined critical temperature; in so doing, the thermomechanical fuse thermally disconnects a first stack of cells from a neighboring second stack of cells.

An example of a battery apparatus (10) is provided including: a housing (12) with a connection arrangement (24); a plurality of interoperable battery cartridges (36) removably fittable to the housing (12) to connect with the connection arrangement (24) to form a stack; at least one battery interface arrangement (17) adapted to be removably fitted to the housing (12) to connect with the connection arrangement (24) so as to be in communication with a selection of the plurality of interoperable battery cartridges (26) via the connection arrangement (24). Examples of battery cartridges (36), a system (5) including one or more battery apparatuses (10), and associated example methods are also disclosed.