An energy storage system includes a pair of rack frames spaced apart from each other and arranged side by side; a plurality of L brackets fastened to the rack frames; a plurality of battery modules respectively placed on a pair of L brackets facing each other to form a plurality of layers along a longitudinal direction of the rack frame; a first heat transfer member interposed between the battery module and the L bracket; and a second heat transfer member interposed between the rack frame and the L bracket.

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 embodiment is directed to a solid state electrolyte-comprising Li or Li-ion battery cell, comprising an anode electrode, a cathode electrode with an areal capacity loading that exceeds around 3.5 mAh/cm.sup.2, an ionically conductive separator layer that electrically separates the anode and cathode electrodes, and one or more solid electrolytes ionically coupling the anode and the cathode, wherein at least one of the one or more solid electrolytes or at least one solid electrolyte precursor of the one or more solid electrolytes is infiltrated into the solid state Li or Li-ion battery cell as a liquid.

An embodiment is directed to a solid state electrolyte-comprising Li or Li-ion battery cell, comprising an anode electrode, a cathode electrode with an areal capacity loading that exceeds around 3.5 mAh/cm.sup.2, an ionically conductive separator layer that electrically separates the anode and cathode electrodes, and one or more solid electrolytes ionically coupling the anode and the cathode, wherein at least one of the one or more solid electrolytes or at least one solid electrolyte precursor of the one or more solid electrolytes is infiltrated into the solid state Li or Li-ion battery cell as a liquid.

A battery pack has a plurality of battery stacks, a case, and a thermal insulation cover. The case accommodates the plurality of battery stacks. The thermal insulation cover is arranged so as to expose an outer surface of at least one battery stack from among the plurality of battery stacks inside the case, and to cover an outer surface of a battery stack that is adjacent to the exposed battery stack. A difference obtained by subtracting an amount of removed heat from an amount of heat generated during heat generation is greater in the battery stack that is exposed from the thermal insulation cover than in the battery stack that is covered by the thermal insulation cover.

A heat dissipation structure including a plurality of heat dissipating members, and a support plate for supporting the heat dissipating members. Each of the heat dissipating members includes a plurality of cushion members each having a hollow or a solid shape, and a heat conduction sheet covering an outer surface of the cushion members. The support plate includes a plurality of grooves for supporting the heat dissipating members in a direction orthogonal to a longitudinal direction of the heat dissipating members. Each of the grooves is a curved recess portion formed in a thickness direction, opened to the side of the heat dissipating member, formed to have a radius of curvature larger than a radius of curvature of the heat dissipating member, and to have a depth smaller than a circular conversion diameter of the heat dissipating member, and a battery provided with the heat dissipating structure.

The present disclosure provides a method for controlling the coolant flow of a liquid-cooled power battery, a system, and a vehicle. The method obtains a relationship between a temperature difference within a battery pack and a temperature difference within the coolant, and deduces a target temperature difference within the coolant according to a target temperature difference within the battery pack and the relationship between the temperature difference within the battery pack and the temperature difference within the coolant. The method determines a required flow capacity of the coolant according to the target temperature difference within the coolant, and controls a battery cooling pump to operate according to the required flow capacity of the coolant. The problem of higher energy consumption existing in existing liquid-cooled battery packs for controlling the temperature difference within the battery pack is resolved by the disclosure.

A battery module according to the embodiment of the present disclosure includes a battery cell stack including a plurality of battery cells stacked in a first direction, a housing for the battery cell stack, a first thermally conductive resin layer located between the battery cell stack and a lower portion of the housing, and a second thermally conductive resin layer located between the battery cell stack and an upper portion of the housing, wherein at least one first injection hole for injecting a thermally conductive resin is formed in the upper portion of the housing.

Disclosed is a method for operating a heat exchanger and an energy store heat exchange system with an energy store including multiple electrochemical cells for providing electrical energy, with a flow duct for providing the cells with a flow of a heat-exchange medium in a flow direction, wherein the cells are arranged in series in the flow direction, wherein the cells each have a heat-exchange surface around which the heat-exchange medium can be made to flow and through which heat can be exchanged between the heat-exchanging medium and the cell, wherein a first (in the flow direction (S)) cell has a first heat-exchange surface, wherein a second cell, arranged downstream of the first cell, has a second heat-exchange surface, the second heat-exchange surface being larger than the first heat-exchange surface, and with an open- and/or closed-loop control unit for setting the volumetric flow.

The application discloses a cooling plate assembly, a liquid cooling module and a battery pack, which include a connector and two groups of cooling pipe assemblies, each group of cooling flow channels includes a first flow channel and a second flow channel penetrating along a first direction and the connector is provided with a third flow channel and a fourth flow channel penetrating along a second direction, wherein the first flow channel is communicated with the third flow channel, and the second flow channel is communicated with the fourth flow channel; the two groups of cooling pipe assemblies are respectively communicated with the first flow channel and the second flow channel on the same side of the connector; between the third flow channel and the fourth flow channel, one is set as liquid inlet and the other is set as liquid outlet.