Apparatuses and methods for removing defective energy storage cells from an energy storage array
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United States of America Patent
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Jan 9, 2018
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app pub date -
Feb 20, 2013
filing date -
Feb 20, 2013
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Abstract
Apparatuses and methods for removing a defective energy storage cell from an energy storage array is described. An apparatus includes an energy storage array including a plurality of energy storage cells, and a cell removal circuit coupled to the energy storage array. The cell removal circuit is configured to prevent a defective energy storage cell of the plurality of energy storage cells from causing other energy storage cells of the plurality of energy storage cells to become defective. A method includes receiving power at a charging node of an energy storage array, the energy storage array including a plurality of energy storage cells. Responsive to failure of an energy storage cell of the plurality of energy storage cells, current is provided through the defective energy storage cell, and responsive to the defective energy storage cell becoming an open circuit, discontinuing provision of the current through the defective energy storage cell.
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