▎ 摘　　要

NOVELTY - The utility model claims a protective film for steel shell cylindrical zinc battery electric core, zinc battery core and zinc battery, belonging to the technical field of battery. A protective film for steel shell cylindrical zinc battery core, comprising a non-woven fabric layer, two surfaces of the non-woven fabric layer are provided with a graphene layer, the outer surface of the graphene layer is provided with a protective film layer, the protective film layer is a polyethylene film or polypropylene film, the protective film layer is provided with a protective film through hole densely distributed. The protective film for steel shell cylindrical zinc battery core of the utility model uses the non-woven fabric as the base layer, the non-woven fabric layer is located in the middle of the composite film, which is good for keeping the electrolyte. and the two sides of the base layer are provided with a graphene layer, the graphene layer can effectively block the zinc dendrite, preventing it contact to the inner wall of the steel shell. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) a steel shell cylindrical zinc battery core; (2) a steel shell cylindrical zinc battery.