METHOD OF DEACTIVATING FAULTY BATTERY CELLS
First Claim
1. A method of deactivating bad battery cells in an electric vehicle, said method including the steps of:
- checking for a weak short circuit in the cells;
determining which individual cell has said weak short circuit; and
disconnecting said cell with said weak short circuit from the other cells.
5 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus for deactivating a bad battery cell from a battery pack for an energy storage system of an electric vehicle is disclosed. The apparatus and methodology includes a clamshell member arranged at an end of the cells and a printed circuit board arranged adjacent to the clamshell member. A collector plate is arranged adjacent to the printed circuit board and a switch is arranged on the printed circuit board. A wire bond is arranged between the switch and one of the cells and a second wire bond is arranged between the switch and the collector plate. The plurality of switches will allow for the identification of the one individual cell having a weak short circuit within the battery pack. Upon identification of the cell with the weak short circuit that cell will have its switch placed in an open position thus electrically isolating the faulty or bad cell from the battery pack.
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Citations
25 Claims
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1. A method of deactivating bad battery cells in an electric vehicle, said method including the steps of:
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checking for a weak short circuit in the cells; determining which individual cell has said weak short circuit; and disconnecting said cell with said weak short circuit from the other cells. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus for deactiving a bad battery cell from a battery pack of cells of an energy storage system for an electric vehicle, said apparatus includes:
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a clamshell member arranged at an end of the cells; a printed circuit board adjacent to said clamshell member; a collector plate arranged adjacent to said printed circuit board; a switch arranged on said printed circuit board; a wire bond arranged between said switch and one of the cells; and a second wire bond arranged between said switch and said collector plate. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification