The invention relates to an energy storage device for generating an n-phase supply voltage for an electrical machine, where n≧1, or for an inverter, with n energy supply branches connected in parallel, each of which can be connected to one of n phase lines, each of the energy supply branches comprising a plurality of series-connected energy storage modules, each comprising: an energy storage cell module and a coupling device configured to selectively connect the energy storage cell module into the respective energy supply branch or to bypass said module, the energy storage cell modules of respective first energy storage modules of an energy supply branch each comprising at least one first energy storage cell, the energy storage cell modules of respective second energy storage modules of an energy supply branch each comprising at least one second energy storage cell, and the first energy storage cells having a lower internal resistance than the second energy storage cells below a predetermined temperature threshold.


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    Title :

    Energy storage device, system with energy storage device and method for generating a supply voltage of an energy storage device


    Contributors:

    Publication date :

    2016-11-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01G Kondensatoren , CAPACITORS / 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 / 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