A battery module according to an embodiment of the present disclosure includes a plurality of secondary battery cells, a housing member in which the plurality of secondary battery cells are accommodated, and a multilayer member provided between the plurality of secondary battery cells, at least a portion of the multilayer member in a first direction being formed of a material having a thermal conductivity lower than that of other portions thereof.

A battery enclosure includes a tub defining an internal volume, a lid, a cross member within the internal volume, and a mounting bracket. The tub has a bottom and a wall integrally formed with the bottom. The lid is configured to couple to the wall to enclose the internal volume. The cross member is coupled to the tub. The mounting bracket is attached to the bottom of the tub and is configured to releasbly secure a battery.

A power storage module includes a pair of power storage cells and a spacer. Each power storage cell includes opposing surfaces. The spacer includes a skeleton member arranged between the opposing surfaces and an elastic member that is arranged between the opposing surfaces and is elastically deformable in an opposing direction. The skeleton member includes a central opposing portion formed at a position opposed to a central portion of the opposing surface. The elastic member is larger in thickness than the central opposing portion and is in contact with the opposing surfaces. The elastic member is lower in melting point than the central opposing portion.

A power storage module includes a pair of power storage cells and a spacer. Each power storage cell includes opposing surfaces. The spacer includes a skeleton member arranged between the opposing surfaces and an elastic member that is arranged between the opposing surfaces and is elastically deformable in an opposing direction. The skeleton member includes a central opposing portion formed at a position opposed to a central portion of the opposing surface. The elastic member is larger in thickness than the central opposing portion and is in contact with the opposing surfaces. The elastic member is lower in melting point than the central opposing portion.

Implantable medical devices that include a battery to power circuitry utilize a battery connector to electrically interconnect the battery to the circuitry. The battery connector may be mounted directly to a device housing to have the battery connector a fixed position within the device. Battery terminals of the battery are electrically connected to terminals on the battery connector, and the terminals on the battery connector are electrically connected to power terminals of the circuitry. The battery connector may include various features such as mounting grooves formed in a connector body, tapered pins to connect to power terminals on a circuit board, as well as plates to engage the battery terminals. The device housing may provide mounting features that allow the battery connector to be affixed directly to the device housing.

Methods, systems, and devices for applying forces to electrochemical devices are generally described. In some cases, the methods include applying a force to an electrochemical device via a solid surface that, in the absence of an applied force, has at least a portion that is convex with respect to a side of the electrochemical device. Certain embodiments are related to systems and devices for applying a force to an electrochemical cell, with some of the systems and devices employing, for example, solid articles with certain shapes (e.g., convex shapes in the absence of an applied force) and/or inventive couplings.

A power supply device includes a plurality of battery cells each having a prismatic exterior can, heat-shrinkable films having insulating property and each covering one of the plurality of battery cells, a plurality of separators interposed between the plurality of battery cells, a battery stack constituted by the plurality of battery cells stacked with separators interposed between the plurality of battery cells, a pair of end plates disposed on both end faces of the battery stack, and a plurality of bind bars disposed on side surfaces, facing opposite directions, of the battery stack to fasten the end plates to each other, where an edge of an end edge of each separator is broken.

A power supply device includes a plurality of battery cells each having a prismatic exterior can, heat-shrinkable films having insulating property and each covering one of the plurality of battery cells, a plurality of separators interposed between the plurality of battery cells, a battery stack constituted by the plurality of battery cells stacked with separators interposed between the plurality of battery cells, a pair of end plates disposed on both end faces of the battery stack, and a plurality of bind bars disposed on side surfaces, facing opposite directions, of the battery stack to fasten the end plates to each other, where an edge of an end edge of each separator is broken.

One embodiment of the present disclosure relates to a secondary battery module. A secondary battery module includes a plurality of battery cells; and a first frame configured to accommodate and cool the plurality of battery cells, wherein the first frame includes: a housing configured to accommodate the plurality of battery cells; and at least one cooling plate coupled to one surface of the housing, interposed between groups of one or more battery cells among the plurality of battery cells disposed in the housing, and configured to fix the plurality of battery cells and dissipate heat generated from the plurality of battery cells.

An energy storage device including an electrode terminal, and a case having a case first surface on which the electrode terminal is disposed, and a case second surface, a conductive member, and a first insulating member including a facing portion that faces the case second surface in the first direction, and is disposed between the case second surface and the conductive member, and an extending portion extending from the facing portion in a second direction intersecting the first direction are provided, and in a third direction intersecting the first direction and the second direction, the extending portion is disposed closer to the case first surface on which the electrode terminal is disposed than a case third surface facing the case first surface of the case.