Foldable small lithium battery

The utility model relates to the field of lithium batteries, and discloses a foldable small lithium battery which comprises lithium battery bodies, a folding plate is arranged between the rear sides of the two lithium battery bodies, an inner wall heat dissipation mechanism is arranged on the front side of the folding plate, and the inner wall heat dissipation mechanism comprises a heat dissipation frame, a heat dissipation groove, rotating fan blades and a rotating shaft. Two heat dissipation grooves are formed in the heat dissipation frame, and through the arranged inner wall heat dissipation mechanism, after the two lithium battery bodies are folded, due to the fact that a folding plate is located at the folding position of the two lithium battery bodies and a gap exists between the two lithium battery bodies, a micro motor controls rotating fan blades to rotate, and heat dissipation is conducted on the two lithium battery bodies; and the rotating fan blades after rotation can accelerate air flow at the fo