To weld a bus bar and an electrode terminal with certainty by bringing the bus bar and the electrode terminal into close contact with each other without forming a gap between the bus bar and the electrode terminal, provided is a power supply device that is a power supply device including a plurality of battery cells electrically connected with each other by bus bar (3). The power supply device has a structure where bus bar (3) includes: rod (4) having conductivity and extending in an arrangement direction of the battery cells; and arm (5) being elastically deformable and being connected to rod (4), arm (5) is configured such that distal end (5x) of arm (5) is welded to an electrode terminal of the battery cell, and rear end (5y) of arm (5) is connected to rod (4) so as to electrically connect the plurality of battery cells to each other via the rod, arm (5) is formed of a conductive plate that is elastically deformable, deformation gap (6) extending from rear end (5y) toward a distal end is formed between arm (5) and rod (4), and arm (5) is elastically deformable so as to displace distal end (5x) to be welded to the electrode terminal.


    Access

    Download


    Export, share and cite



    Title :

    POWER SUPPLY DEVICE, ELECTRIC VEHICLE COMPRISING POWER SUPPLY DEVICE, AND POWER STORAGE DEVICE


    Contributors:

    Publication date :

    2022-04-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



    Power supply device, electric vehicle comprising power supply device, and power storage device

    KITA HIROAKI / INAMURA TAKASHI / KOJIMA YASUMASA | European Patent Office | 2024

    Free access

    POWER SUPPLY DEVICE, ELECTRIC VEHICLE COMPRISING POWER SUPPLY DEVICE, AND POWER STORAGE DEVICE

    KOGAMI NAO / HARAZUKA KAZUHIRO / FUJINAGA KOJI | European Patent Office | 2021

    Free access

    POWER SUPPLY DEVICE, ELECTRIC VEHICLE COMPRISING POWER SUPPLY DEVICE, AND POWER STORAGE DEVICE

    KOGAMI NAO / HARAZUKA KAZUHIRO / FUJINAGA KOJI | European Patent Office | 2023

    Free access

    POWER SUPPLY DEVICE, ELECTRIC VEHICLE COMPRISING POWER SUPPLY DEVICE, AND POWER STORAGE DEVICE

    KOGAMI NAO / HARAZUKA KAZUHIRO / FUJINAGA KOJI | European Patent Office | 2024

    Free access

    BATTERY MODULE, POWER SUPPLY DEVICE COMPRISING BATTERY MODULE, AND ELECTRIC VEHICLE AND POWER STORAGE DEVICE COMPRISING POWER SUPPLY DEVICE

    KUNIMITSU TOMONORI / NAKAYAMA MASATO / YANO JUNYA et al. | European Patent Office | 2023

    Free access