Adhesive tape with multi-layer composite structure for battery cell

The utility model discloses an adhesive tape for a battery cell with a multi-layer composite structure in the technical field of adhesive tapes, which comprises a fixed shell, a winding drum and an adhesive layer, the adhesive layer is wound on the surface of the winding drum, the winding drum is movably arranged in the fixed shell, and the adhesive layer is arranged in the fixed shell. The adhesive layer sequentially comprises a connecting layer, a high-temperature-resistant layer, a high-pressure-resistant layer and a flame-retardant layer from inside to outside, the connecting layer, the high-temperature-resistant layer, the high-pressure-resistant layer and the flame-retardant layer are connected in an adhesive mode through adhesives, a cutting assembly is fixedly arranged on the surface of the fixing shell, and the cutting assembly comprises a fixing cavity, a cutting knife and a button. The bottom of the fixing cavity is fixedly connected with the top surface of the fixing shell, and a groove is formed