Exhaust device and battery module including exhaust device

The present invention relates to an exhaust apparatus, comprising: a gas inlet through which gas is introduced; a gas outlet through which the gas introduced through the gas inlet is discharged to the outside; an alarm device which is provided on one side of the gas outlet and from which a sound is generated due to the gas discharged to the outside; a connection portion configured to connect the air inlet and the air outlet; and a sealing cap located inside the connection portion and automatically discharging gas to the outside, thereby being capable of automatically discharging gas generated inside the battery cell or module to the outside. 本发明涉及一种排气设备，该排气设备包括：进气口，通过所述进气口引入气体；出气口，通过该出气口将通过所述进气口引入的气体排放到外部；警报装置，其设置在所述出气口的一侧上，并且由于被排放到外部的气体而从警报装置中产生声音；连接部分，其被配置为将进气口和出气口连接；以及密封帽，其位于连接部分内部并且将气体自动排放到外部，从而能够将电池单元或模块内部产生的气体自动排放到外部。