BATTERY MODULE HAVING A FLEXIBLE PACK BATTERY STACK ACCOMMODATED IN HOLDERS INTERCONNECTED IN FORM-FITTING MANNER AND SUPPORTING CIRCUIT BREAKER-LINE BUSBAR

The invention consists of a battery module comprising a plurality of individual supports stacked one on top of the other and in each of which is housed a flexible-packaged accumulator, each support housing metal bars forming pairs of terminals that individually establish electrical connection by contact with a terminal (tab) of one of the accumulators. According to the invention, one of the terminals is welded directly to a metal plate forming a busbar which comprises zones with a weakening (zones of reduced thickness) along a break line. A break line is provided between two blind-frame supports such that each harmful swelling of any accumulator within the module generates a rupture of a busbar and thus separates it into at least two parts which are no longer mechanically and electrically connected. Thus, a busbar according to the invention with multiple break lines forms a current interruption device for the module.