▎ 摘　　要

NOVELTY - The heating film (40) has a first protective layer, a second protective layer, a heating layer and an electrode layer laminated layer. The heating layer is provided with multiple sub-heating intervals. The electrode layer is electrically connected with the sub-heating region (411) to form a parallel heating loop. The first protective layer and the second protective layer are provided with an insulator layer and an adhesive sub-layer. The adhesive sub-layer is fixed on one side of the insulator layer far away from the heating layer. The material of the first protective layer and second protective layer are provided with the polyimide and polyethylene. The sub-heating region of film is contained with graphene and protective layers are made of polyimide and polyethylene. USE - Heating film for battery of electric device (all claimed) such as vehicle. ADVANTAGE - The risk of failure in the working process of the heating film is reduced. The service life of the battery is improved. The safety performance of the heat-conducting performance and safety performance are improved in the process of using. The heating film can be adhered to the corresponding position of battery by bonding, so that the operation is more convenient and fast. The structure stability of heating film under the working condition is improved, and the tensile strength of heat film is increased. The gap between the same layer and two adjacent sub heating area is 3-8 mm, so as to ensure the heating efficiency of heating layer of certain area, at the same time, and to facilitate the circuit arrangement in the electrode layer. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: a battery; a method for manufacturing a heating film; and a device for manufacturing a heating film. DESCRIPTION OF DRAWING(S) - The drawing shows schematic diagram of the heating film. 40Heating film 411Sub-heating region