To reduce frictional resistance between an upper surface of a heat transfer sheet and a bottom surface of a battery cell to enable smooth sliding with a heat transfer state between the battery cell and the heat transfer sheet being maintained, a power supply device includes a plurality of battery cells (1) each including an outer covering can in a prismatic shape, a pair of end plates (3) that cover both end surfaces of a battery stack in which the plurality of battery cells (1) are stacked, a plurality of bind bars each formed into a plate shape extending in a stacking direction of the plurality of battery cells (1), the plurality of bind bars being respectively disposed on opposite side surfaces of the battery stack to fasten end plates (3) to each other, heat radiation plate (9) placing the battery stack on its upper surface side for releasing heat from the battery stack, and heat transfer sheet (6) interposed between an upper surface of heat radiation plate (9) and a lower surface of the battery stack to bring heat radiation plate (9) and the battery stack into a thermally coupled state, wherein low friction slide layer (7) with a friction resistance smaller than a friction resistance of the upper surface of heat transfer sheet (6) is provided between heat transfer sheet (6) and the plurality of battery cells (1).
POWER SUPPLY DEVICE, ELECTRIC VEHICLE USING SAME, AND POWER STORAGE DEVICE
STROMVERSORGUNGSVORRICHTUNG, ELEKTROFAHRZEUG MIT VERWENDUNG DAVON UND STROMSPEICHERVORRICHTUNG
DISPOSITIF D'ALIMENTATION ÉLECTRIQUE, VÉHICULE ÉLECTRIQUE UTILISANT CELUI-CI ET DISPOSITIF DE STOCKAGE D'ÉNERGIE
2023-04-26
Patent
Electronic Resource
English
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY |
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