Novel lithium battery

The utility model discloses a novel lithium battery which comprises a shell with an open top and a battery roll core arranged in the shell, the battery roll core is provided with a positive electrode pin and a negative electrode pin, the positive electrode pin and the negative electrode pin extend towards the top of the shell, electrolyte is contained in the shell, a first insulating spacer is arranged at the top of the battery roll core, and a second insulating spacer is arranged at the bottom of the battery roll core. A sealing piece is arranged on the inner side of the top of the shell, the sealing piece is formed by curing an adhesive, the sealing piece and the inner wall of the shell are bonded to seal the top of the shell, an inner convex ring is further arranged on the top of the shell, and the inner convex ring abuts against the top of the sealing piece for limiting. According to the novel lithium battery disclosed by the utility model, the sealing performance can be improved, so that the service life