Flexible voltage nested battery module design

H - Electricity – 01 – M

Patent

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Details

H01M 2/20 (2006.01) H01M 2/10 (2006.01) H01M 2/30 (2006.01)

Patent

CA 2721548

Exemplary embodiments of the present invention provide flexible, multi-voltage battery modules having multiple cells that are nested together. The cells can be, for example, cylindrical lithium ion cells. To increase cell package density, the cells can be disposed in a nested configuration so that adjacent cell centers form equilateral triangles. The cells can be placed in a housing or case with interlocking tabs that allow multiple modules to be connected together. Within a module, the cells can be connected in different configurations by buss bars at the top and the bottom of the battery cells. The different configurations may provide different voltages for the module.

Des modes de réalisation illustratifs de la présente invention concernent des modules de batterie multi-tension flexibles comportant plusieurs cellules qui sont encastrées conjointement. Les cellules peuvent par exemple être des cellules à ion lithium cylindriques. Afin d'augmenter la densité de conditionnement de cellules, les cellules peuvent être placées selon une configuration encastrée, de manière que les centres de cellules adjacentes forment des triangles équilatéraux. Les cellules peuvent être placées dans un boîtier avec des pattes d'assemblage permettant de raccorder plusieurs modules. Au sein d'un module, les cellules peuvent être connectées selon différentes configurations par des barres omnibus au niveau de la partie supérieure et de la partie inférieure des cellules de la batterie. Les différentes configurations peuvent permettre au module de fournir différentes tensions.

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