A battery pack includes: a lower pack housing having a plurality of module regions; a plurality of thermally conductive resin layers disposed in respective ones of the plurality of module regions; and a plurality of cell blocks mounted on respective ones of the plurality of module regions at an upper side of the respective thermally conductive resin layer, wherein each of the plurality of cell blocks includes: a battery cell stack in which a plurality of battery cells are stacked; and an insulator that surrounds the battery cell stack.

A battery pack includes: a lower pack housing having a plurality of module regions; a plurality of thermally conductive resin layers disposed in respective ones of the plurality of module regions; and a plurality of cell blocks mounted on respective ones of the plurality of module regions at an upper side of the respective thermally conductive resin layer, wherein each of the plurality of cell blocks includes: a battery cell stack in which a plurality of battery cells are stacked; and an insulator that surrounds the battery cell stack.

A battery pack includes a plurality of cell assemblies each of which include one or more prismatic batteries. A frame has legs sized and configured to be positioned around the prismatic batteries. At least one leg includes a rear face, curved outer edge and a side face. A thermal transfer sheet is made from a sheet of a compressed mass of exfoliated graphite particles. Each thermal transfer sheet is positioned to contact the major surface of the at least one prismatic battery and is bent over the curved outer edge. At least a portion of each thermal transfer sheet is secured between a heat sink and the side face.

Disclosed is a battery module, as well as a battery pack and a vehicle comprising the same. The battery module includes a plurality of battery cells arranged side by side to face each other in at least one direction, a cooling plate located below the plurality of battery cells, and a heat transfer tape adhered to the battery cells to transfer heat of the battery cells to the cooling plate.

A jelly-roll type of electrode assembly in which a negative electrode sheet, a positive electrode sheet, and a separation membrane interposed between the negative electrode sheet and the positive electrode sheet are wound together is provided. The electrode assembly also includes: at least one electrode tab attached to the negative electrode sheet or the positive electrode sheet and at least a portion extending outside; and a heat radiation tape adhered to the electrode. The electrode tab to which the heat radiation tape is adhered is positioned between the center part of the wound electrode assembly and an external circumferential surface, or on the external circumferential surface, the heat radiation tape includes a heat diffusion layer, and the heat diffusion layer includes at least one of graphite and a metal foil.

An energy storage device comprising a container, a mandrel, at least one sheet of separator material, and two or more electrodes. The container comprises an inner surface. The mandrel comprises a mandrel surface, and is positioned within the container so that the mandrel surface is spaced apart from the inner surface to define a cavity within the container. The container has a packing axis that passes through the cavity, the mandrel surface, and the inner surface. The mandrel is compressible in the direction of the packing axis, the at least one sheet of separator material is arranged in the cavity to provide a plurality of separator layers along the packing axis, and an electrode is provided between the separator layers.

A system and method for a subterranean energy storage and retrieval system, having constructed a subterranean battery from a repurposed wellbore with ganged cells with an electrical connection attached to the battery at the surface of the wellbore. A cooling system cools the battery cells downhole. A pressure activated switch is normally open until the battery cells are resting on the bottom hole retainer.

A system and method for a subterranean energy storage and retrieval system, having constructed a subterranean battery from a repurposed wellbore with ganged cells with an electrical connection attached to the battery at the surface of the wellbore. A cooling system cools the battery cells downhole. A pressure activated switch is normally open until the battery cells are resting on the bottom hole retainer.

A battery module according to one embodiment of the present disclosure comprises: a plurality of battery cells, a housing accommodating the plurality of battery cells, a cooling part disposed on an outer surface of the housing, and a first heat transfer part disposed on an inner surface of the housing in contact with an end of each of the plurality of battery cells, wherein the housing may have a curved portion having a curved shape conforming to a curved shape of the ends of the plurality of battery cells.

A battery module according to one embodiment of the present disclosure comprises: a plurality of battery cells, a housing accommodating the plurality of battery cells, a cooling part disposed on an outer surface of the housing, and a first heat transfer part disposed on an inner surface of the housing in contact with an end of each of the plurality of battery cells, wherein the housing may have a curved portion having a curved shape conforming to a curved shape of the ends of the plurality of battery cells.