RECHARGEABLE BATTERY MODULE

A rechargeable battery module incudes a plurality of battery cells stacked in a first direction; a bus bar holder including a bottom part covering the battery cells and exposing electrode terminals of the battery cells; a bus bar connecting the electrode terminals; and a temperature sensor arranged on an electrode terminal of the electrode terminals to detect a temperature of a battery cell of the battery cells, the temperature sensor including a first sensing part to transmit a detection signal through a body part connected to the first sensing part, the bus bar holder further including a vent pipe part connected to the bottom part to define a vent passage toward a vent of the battery cells along the first direction, and the temperature sensor further including a second sensing part connected to the body part, extending through the vent pipe part, and exposed to the vent passage.