Power storage device, power supply device, moving body, capacitor, and method for protecting power storage device
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorTerumi Fujiyama
Life of this patent
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Abstract
A power storage device includes a plurality of power storage units and a plurality of disconnection units. The plurality of power storage units are electrically connected in parallel between a pair of connection points. The plurality of disconnection units each connect to a corresponding power storage unit in the plurality of power storage units. Each of the plurality of disconnection units is configured to electrically disconnect between the corresponding power storage unit and at least one of the pair of connection points in accordance with flowing of a current at a value more than or equal to a predetermined value in the corresponding power storage unit.
Claims10
A power storage device comprising:
- a plurality of power storage units electrically connected in parallel between a pair of connection points;
- a plurality of disconnection units each connecting to a corresponding power storage unit in the plurality of power storage units, wherein:
- each of the plurality of disconnection units is configured to electrically disconnect between the corresponding power storage unit and at least one of the pair of connection points in accordance with flowing of a current at a value more than or equal to a predetermined value in the corresponding power storage unit, and
- the predetermined value is 3 times or more and 20 times or less of a rated current of the corresponding power storage unit.
A capacitor comprising an electrolyte, wherein:
- the capacitor is one of a plurality of power storage units included in a power storage device,
- the power storage device further includes a plurality of disconnection units each connecting to a corresponding power storage unit in the plurality of power storage units,
- the plurality of power storage units are electrically connected in parallel between a pair of connection points,
- each of the plurality of disconnection units is configured to electrically disconnect between the corresponding power storage unit and at least one of the pair of connection points in accordance with flowing of a current at a value more than or equal to a predetermined value in the corresponding power storage unit, and
- the predetermined value is 3 times or more and 20 times or less of a rated current of the corresponding power storage unit.
A method for protecting a power storage device,
- the power storage device including a plurality of power storage units electrically connected in parallel between a pair of connection points,
- the method comprising a step of electrically disconnecting between at least one of the plurality of power storage units and at least one of the pair of connection points in accordance with flowing of a current at a value more than or equal to a predetermined value in the at least one of the plurality of power storage units;
- wherein the predetermined value is 3 times or more and 20 times or less of a rated current of the corresponding power storage unit.
Dependencies are inferred from the claim text.