The present invention provides a battery rack including: a housing; a plurality of battery modules stacked in the housing; and a connection member configured to electrically connect the plurality of battery modules, wherein each of the plurality of battery modules includes a plurality of battery submodules stacked on each other, and each of the plurality of battery submodules comprises: at least one cooling member; and a plurality of battery cells located on both sides with the at least one cooling member interposed therebetween, wherein at least two of the plurality of battery cells are located on each of both sides of the at least one cooling member.

The present invention provides a battery rack including: a housing; a plurality of battery modules stacked in the housing; and a connection member configured to electrically connect the plurality of battery modules, wherein each of the plurality of battery modules includes a plurality of battery submodules stacked on each other, and each of the plurality of battery submodules comprises: at least one cooling member; and a plurality of battery cells located on both sides with the at least one cooling member interposed therebetween, wherein at least two of the plurality of battery cells are located on each of both sides of the at least one cooling member.

A battery module includes: a cell stack including a plurality of unit cells arranged in a first direction; and an insulating member around the plurality of unit cells; a plurality of module housings, each of the module housings including a plurality of receiving parts and receiving the cell stack; and a coupling part, and each of the receiving parts includes a fixing wall around the cell stack and having at least a portion which is in contact with the cell stack, and the fixing wall includes end walls at respective sides of each of the receiving parts in the first direction to engage end surfaces of respective sides of the cell stack in the first direction, and the coupling part is configured to be coupled to the coupling part of an adjacent battery module.

A battery module includes: a cell stack including a plurality of unit cells arranged in a first direction; and an insulating member around the plurality of unit cells; a plurality of module housings, each of the module housings including a plurality of receiving parts and receiving the cell stack; and a coupling part, and each of the receiving parts includes a fixing wall around the cell stack and having at least a portion which is in contact with the cell stack, and the fixing wall includes end walls at respective sides of each of the receiving parts in the first direction to engage end surfaces of respective sides of the cell stack in the first direction, and the coupling part is configured to be coupled to the coupling part of an adjacent battery module.

A rack type power source device includes a plurality of battery packs, a rack to house the plurality of battery packs being arranged, and a connector plate fixed to the rack at a far side in a direction in which the battery packs are inserted into the rack. The connector plate is provided with a plurality of connectors designed to be electrically connected to terminals of the plurality of battery packs. The connector plate includes a side wall that constitutes a part of a first-side wall of the rack, and a connector mount wall disposed at an inner position in the rack so as to form a depth difference from the side wall. The connector mount wall is provided with the plurality of connectors arranged corresponding to the battery packs housed in the rack.

The battery module of the present invention includes a plurality of battery cells and a heat exchange unit configured to cool the plurality of battery cells, and the heat exchange unit includes: a flow frame through which coolant inflows and outflows; and a frame cover which is in contact with the plurality of battery cells, wherein the frame cover is coupled to the flow frame to form a flow space, through which the inflowing and outflowing coolant flows, together with the flow frame.

The battery module of the present invention includes a plurality of battery cells and a heat exchange unit configured to cool the plurality of battery cells, and the heat exchange unit includes: a flow frame through which coolant inflows and outflows; and a frame cover which is in contact with the plurality of battery cells, wherein the frame cover is coupled to the flow frame to form a flow space, through which the inflowing and outflowing coolant flows, together with the flow frame.

An assembly comprising a housing (6) having walls (11) and containing groups of electrical cells (7). Each wall contains at least one space in which, at a given time, a flow of thermal fluid (F2) can be present.

The said space, and thus the corresponding wall (11), has a flow of fluid inlet and outlet. In a flow of fluid-tight manner, the flow of fluid inlet and outlet communicate with, respectively, a supply (25a) of thermal flow of fluid and a discharge (25b) of said flow of fluid, so that the flow of fluid can circulate in said space. Through the surrounding wall and said sealed communications, said space is physically isolated from the cells, so that the flow of fluid (F2) therein and the interior space (9) of the housing do not communicate. The wall (11) extends parallel to at least one of the lateral faces of at least one said cell (7).

A battery cell including an electrode assembly contained within a housing. The electrode assembly shrinks and/or swells depending on a charge/discharge cycle of the cell. A swelling compensation member configured to shrink upon swelling of the electrode assembly, and expand upon on shrinking of the electrode assembly is in continuous contact with the electrode assembly and an innermost surface of the housing. A first portion of the innermost surface of the housing is in contact with the swelling compensation member, and a second portion is free from contact with the swelling compensation member. The battery cell includes a cooling member in thermal contact with the outermost surface of the housing. Part of the outermost surface of the housing in contact with the cooling member corresponds to a part of the innermost surface of the housing which is free from contact with the swelling compensation member.

A battery cell including an electrode assembly contained within a housing. The electrode assembly shrinks and/or swells depending on a charge/discharge cycle of the cell. A swelling compensation member configured to shrink upon swelling of the electrode assembly, and expand upon on shrinking of the electrode assembly is in continuous contact with the electrode assembly and an innermost surface of the housing. A first portion of the innermost surface of the housing is in contact with the swelling compensation member, and a second portion is free from contact with the swelling compensation member. The battery cell includes a cooling member in thermal contact with the outermost surface of the housing. Part of the outermost surface of the housing in contact with the cooling member corresponds to a part of the innermost surface of the housing which is free from contact with the swelling compensation member.