Reactor with high sealing performance for lithium battery

The utility model discloses a reactor with high sealing performance for a lithium battery, and belongs to the technical field of reaction containers. The device mainly comprises a feeding port used for feeding raw materials and a sealing cover used for sealing the feeding port, a threaded shaft fixed in position is arranged on the edge of the feeding port, one end of the threaded shaft penetrates through the sealing cover to be in threaded connection with a threaded sleeve, and a fixing rod used for rotating the threaded sleeve is arranged on the threaded sleeve. A sliding sleeve is arranged at the tail end of the fixing rod, a clamping structure used for being clamped with the threaded sleeve is arranged in the sliding sleeve, and the clamping structure can be separated. When the angle needs to be adjusted, the sliding sleeve is separated from the threaded sleeve, the angle of the sliding sleeve can be adjusted conveniently, the sliding sleeve and the threaded sleeve are fixed when the threaded sleeve is scr