In order to provide a power supply device and the like in which stretchability is secured while strength is enhanced in fastening of a battery stack body where a plurality of secondary battery cells are stacked, the power supply device includes: a plurality of secondary battery cells each including a prismatic exterior can; a pair of end plates covering both end surfaces of a battery stack body in which the plurality of secondary battery cells are stacked; and a plurality of fastening members (15) made of metal each having a plate shape extending in a stack direction of the plurality of secondary battery cells and disposed on an opposing side surface of the battery stack body to fasten the end plates to each other, in which each of the plurality of fastening members (15) includes fastening portion (15c) fixed to the end plate at each of both ends in a longer direction, and intermediate portion (15a) coupling fastening portions (15c) with each other, and fastening portions (15c) is higher in strength than intermediate portion (15a), and intermediate portion (15a) is higher in stretchability than fastening portions (15c).


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    Title :

    POWER SUPPLY DEVICE AND ELECTRIC VEHICLE AND POWER STORAGE DEVICE USING SAME, FASTENING MEMBER FOR POWER SUPPLY DEVICE, PRODUCTION METHOD FOR POWER SUPPLY DEVICE, AND PRODUCTION METHOD FOR FASTENING MEMBER FOR POWER SUPPLY DEVICE


    Additional title:

    STROMVERSORGUNGSVORRICHTUNG UND ELEKTRISCHES FAHRZEUG UND ENERGIESPEICHERVORRICHTUNG DAMIT, BEFESTIGUNGSELEMENT FÜR EINE ENERGIEVERSORGUNGSEINRICHTUNG, HERSTELLUNGSVERFAHREN FÜR EINE STROMVERSORGUNGSVORRICHTUNG UND HERSTELLUNGSVERFAHREN FÜR EIN BEFESTIGUNGSELEMENT FÜR EINE ENERGIEVERSORGUNGSEINRICHTUNG
    DISPOSITIF D'ALIMENTATION ÉLECTRIQUE ET VÉHICULE ÉLECTRIQUE ET DISPOSITIF DE STOCKAGE D'ÉNERGIE L'UTILISANT, ÉLÉMENT DE FIXATION POUR DISPOSITIF D'ALIMENTATION ÉLECTRIQUE, PROCÉDÉ DE PRODUCTION POUR DISPOSITIF D'ALIMENTATION ÉLECTRIQUE, ET PROCÉDÉ DE PRODUCTION D'ÉLÉMENT DE FIXATION POUR DISPOSITIF D'ALIMENTATION ÉLECTRIQUE


    Contributors:

    Publication date :

    2022-05-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    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