A storage battery device of an embodiment is to be mounted on a vehicle for power supply to an on-vehicle device, and includes: a first battery unit including battery cells connected in series between a first input output voltage charge-discharge terminal pair to supply low-voltage power via the first input output voltage charge-discharge terminal pair; a second battery unit connected in series to a high potential side of the first battery unit, including battery cells connected in series between the first battery unit and a second input output voltage charge-discharge terminal to supply high-voltage power in cooperation with the first battery unit via the first input output voltage charge-discharge terminal on a low potential side and the second input output voltage charge-discharge terminal; and a direct-current voltage converter that performs DC voltage conversion of a power supply from the second battery unit, to be able to supply power via the first input output voltage charge-discharge terminal pair. The storage battery device can thus simultaneously supply low-voltage power and high-voltage power with maintained reliability.


    Access

    Download


    Export, share and cite



    Title :

    STORAGE BATTERY DEVICE


    Additional title:

    SPEICHERBATTERIEVORRICHTUNG
    DISPOSITIF DE BATTERIE D'ACCUMULATEURS


    Contributors:

    Publication date :

    2022-07-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / 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



    STORAGE BATTERY DEVICE AND STORAGE BATTERY SYSTEM

    MIURA KOICHIRO / YAMAZAKI HIDEO | European Patent Office | 2019

    Free access

    BATTERY STORAGE DEVICE

    MATSUMOTO TAKUYA / WATANABE KEI | European Patent Office | 2022

    Free access

    STORAGE BATTERY DEVICE

    KURODA KAZUTO / SEKINO MASAHIRO / YAMAZAKI HIDEO et al. | European Patent Office | 2021

    Free access

    Storage battery device

    GESKES PETER / MOSER MICHAEL / TREIER JOACHIM et al. | European Patent Office | 2020

    Free access

    Storage battery device

    KONDO ATSUMI / HAGIWARA KEIZO | European Patent Office | 2020

    Free access