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US 2014/0191576 A1Published application
Electric storage system
AssigneeHitachi, Ltd.
InventorsMitsutoshi Honda, Masahiro Iwamura, Motoo Futami, Hiroyuki Shoji, Takeshi Inoue
Life of this patent
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Abstract
An electric storage system includes at least two types of electric storage cells. A first electric storage unit is configured from a first electric storage cell, and a second electric storage unit is configured from a second electric storage cell. The first and second electric storage units are electrically connected to each other through a current controlling circuit.
Claims9
1-6. (canceled)
An electric storage system, comprising:
- a first electric storage unit configured from a first electric storage cell;
- a second electric storage unit configured from a second electric storage cell different in type from the first electric storage cell;
- and
- a current controlling circuit provided between the first electric storage unit and the second electric storage unit, the current controlling circuit being electrically connected to the first and second electric storage units to control input/output current amounts to and from the first electric storage unit and the second electric storage unit;
- wherein the current controlling circuit includes two switch circuits and allows the two switch circuits to provide switching control between on and off states to control the ratio of the input/output currents to and from the first electric storage unit and the second electric storage unit.
2 more elements
Dependencies are inferred from the claim text.