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US 2006/0076923 A1Published application
Methods and systems for assembling batteries
AssigneeModular Energy Devices, Inc.
InventorStephen Eaves
Life of this patent
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AssigneeModular Energy Devices, Inc.
InventorStephen Eaves
Estimating the term…
A large battery pack of specified voltage and capacity can be assembled from a plurality of identical small cells by dividing the specified capacity by a nominal battery module capacity to determine a desired number of parallel modules to be provided, dividing the nominal battery module capacity by a nominal cell card capacity, to determine the number of cell cards required in each module, connecting the call cards in parallel to a common buswork to form the battery module, and connecting the modules in parallel to obtain the specified battery pack capacity and in series to obtain the specified battery pack voltage Protection circuitry can be implemented at the module level, by disconnecting one or more modules or the entire battery pack if a fault at the module level is identified; at the cell card level, by disconnecting a cell card if a cell within it is determined to be faulty; and/or internally, in each cell.
A method for assembling a battery pack of specified voltage and capacity from a plurality of cells, comprising the steps of:
A battery pack made up of a number of cells, the cells being organized in series/parallel format to make up cell cards of desired capacity, and the cell cards being organized in parallel to form modules of desired capacity, the modules being connected in series and parallel to form the battery pack, wherein each module comprises a protection circuit which monitors operational parameters of the cell cards making up the module, the protection circuit being arranged to disconnect the faulty module or the entire battery pack upon detection of a flaw, and wherein each cell card further comprises cell card protection circuitry for disconnection of a particular cell card upon detection of a fault in one or more of the cells thereof.
Dependencies are inferred from the claim text.