SAFE CYLINDRICAL BATTERY

Disclosed is a safe cylindrical battery, including a battery housing, wherein a core assembly is arranged in the battery housing, and the core assembly includes an electrode sheet, a compact full electrode lug, and a channel full electrode lug; the compact full electrode lug is vertically arranged on one end of the electrode sheet; the channel full electrode lug is parallelly arranged on the other end of the electrode sheet; the electrode sheet, the compact full electrode lug, and the channel full electrode lug are of an integral structure; the electrode sheet, the compact full electrode lug, and channel full electrode lug are wound to form a helical structure; and an explosion-proof line is engraved on one end of the battery housing corresponding to the channel full electrode lug.