BATTERY MODULE TO WHICH CONNECTOR HAVING IMPROVED FLAME RETARDANCY IS APPLIED

A battery module according to the present disclosure includes a cell assembly having battery cells; a module case accommodating the cell assembly and having a connector mounting hole at one side; and a connector assembly connected to a circuit board provided inside the module case and having at least a portion exposed to the outside of the module case through the connector mounting hole, wherein the connector assembly includes a connector housing having connector pins inside and having at least a portion exposed to the outside of the connector mounting hole; and a flame retardant block formed of a metal material and surrounding the circumference of the connector housing inside the module case, wherein the flame retardant block has a coating layer of an incombustible material on the surface facing the inside of the module case.