BUS BAR ASSEMBLY HAVING A TEMPERATURE SENSING INTERFACE, BATTERY MOUDLE INCLUDING THE BUS BAR ASSEMBLY, AND METHOD OF MANUFACTURING THE BATTERY MODULE

A bus bar assembly for a battery module having a plurality of electrochemical cells. The bus bar assembly comprising a bus bar carrier configured to receive bus bars to interface with terminals of the plurality of electrochemical cells, a flex circuit disposed on the bus bar carrier, and a temperature sensor welding tab comprising a circuit engagement region secured to the flex circuit and a welding region to be welded to an end of an electrochemical cell. Also disclosed is disclosed is a battery module including the bus bar assembly and a method of making the battery module.