▎ 摘　　要

NOVELTY - The circuit has an energy storage inductor and a switch connected in series. A diode is connected with the switch in parallel. A heating sub-circuit has a conductive film and multiple heating units with same number as balancing units. Each heating unit includes two switches, in which the conductive film is connected in parallel with the switch of the corresponding balance unit. The conductive film is covered on the surface of the power battery. The conductive film is a graphene electric heating film or a wide-line metal film. USE - Power battery equalization and heating composite circuit. ADVANTAGE - Improves the performance of the power battery and ensures the normal operation of the power battery. Improves the equalization and heating efficiency, has low cost low, simple and reliable. DESCRIPTION OF DRAWING(S) - The drawing shows the block diagram of the power battery equalization and heating composite circuit. (The drawing includes non-English language texts). Battery cells (BT1-BT6) Diodes (D1-D6) Inductors (L1-L6) Metal oxide semiconductor transistors (Q1-Q18)