DEVICE FOR REMOVING GAS OF SECONDARY BATTERY AND METHOD OF MANUFACTURING SECONDARY BATTERY USING THE SAME

The present disclosure relates to a device for removing gas of a secondary battery and a method of manufacturing the secondary battery using the same. The device for removing gas of the secondary battery according to the present disclosure includes a vacuum hopper that is provided to be insertable into an electrolyte inlet of an assembled secondary battery, and a vacuum generating unit that is connected to the vacuum hopper and selectively brings an inside of the vacuum hopper into a vacuum state and a vacuum release state, wherein the vacuum hopper suctions a portion of an electrolyte injected into and gas in the secondary battery in the vacuum state.