Automated battery cell shunt bypass
First Claim
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1. A battery pack, comprising:
- a plurality of battery cells electrically connected in series, the plurality of battery cells including a selected battery cell; and
a shorting mechanism operable, upon the occurrence of a selected event, to automatically remove electrically the selected battery cell from the electrically connected battery cells.
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Abstract
A battery pack is provided that includes a plurality of battery cells electrically connected in series, the plurality of battery cells including a selected battery cell, and a shorting mechanism operable, upon the occurrence of a selected event, to automatically remove electrically the selected battery cell from the electrically connected battery cells.
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Citations
27 Claims
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1. A battery pack, comprising:
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a plurality of battery cells electrically connected in series, the plurality of battery cells including a selected battery cell; and
a shorting mechanism operable, upon the occurrence of a selected event, to automatically remove electrically the selected battery cell from the electrically connected battery cells. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. In a battery pack comprising a plurality of battery cells electrically connected in series, a method, comprising:
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removing electrical energy from and/or inputting electrical energy to the battery pack; and
when a selected battery cell in the battery pack has an operating characteristic beyond a specified operational limit, automatically removing electrically the selected battery cell from the battery pack. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A system, comprising:
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a plurality of battery cells electrically connected in series, the plurality of battery cells including a selected battery cell;
an electric motor in electrical communication with the battery cells; and
a shunting device operable in a first mode not to shunt a selected battery cell and in a second mode to shunt the selected battery cell, whereby, in the first mode, the selected battery cell provides electrical energy to the electric motor and, in the second mode, the selected battery cell provides no electrical energy to the electric motor. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
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Specification