Charging cells in a battery pack

The battery pack 510 comprises a set of N parallel-coupled switched cell strings 530-1 to 530-N, each switched cell string comprising a cell 532-1 to 532-N and a switch 534-1 to 534-N for selectively coupling a first terminal of the cell to a first terminal 542 of the battery pack. Various other arr...

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Bibliographic Details
Main Authors Anthony Stephen Doy, John Paul Lesso
Format Patent
LanguageEnglish
Published 31.05.2023
Subjects
BASIC ELECTRIC ELEMENTS
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
SYSTEMS FOR STORING ELECTRIC ENERGY
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Summary:The battery pack 510 comprises a set of N parallel-coupled switched cell strings 530-1 to 530-N, each switched cell string comprising a cell 532-1 to 532-N and a switch 534-1 to 534-N for selectively coupling a first terminal of the cell to a first terminal 542 of the battery pack. Various other arrangements of cell strings and switches are described (figs 7a, 7b, 9). The charging method comprises operating the switches in a manner to charge each cell string in an interleaved and pulsed manner (figs 6, 8). The relaxation interval for the cells is said to prevent or restrict the formation of metallic lithium within each cell thus reducing the overall charging time of each cell.
Bibliography:Application Number: GB20220001764