Novel blue film coating structure of lithium ion battery

The utility model relates to a novel blue film coating structure of a lithium ion battery. The battery module comprises a battery main body, a cover plate assembly, an aluminum shell, a structural adhesive and a module side plate, a cover plate assembly is arranged at the upper end of the battery body; an aluminum shell is arranged on the outer surface of the battery main body; the cover plate assembly and the aluminum shell are sealed through laser welding. A blue film is arranged on the surface of the aluminum shell; the blue film is used for carrying out improved U-shaped coating on the aluminum shell; a part of aluminum leakage area is reserved on the side surface of the aluminum shell; the structural adhesive is arranged on the left side of the aluminum shell, the module side plate isconnected with the aluminum shell through the structural adhesive, the insulating film is hot-pressed on the surface of the module side plate, the short-circuit risk of the battery is prevented, thealuminum leakage area is c