▎ 摘　　要

NOVELTY - The battery has a first graphene heating sheet covered on an outer side of a battery pack. A second graphene sheet heating strip is arranged on the battery pack. The battery pack is clamped between two electric cores. The first graphene heating sheet and the second graphene heating plate are connected in parallel manner, where resistor value of the first graphene heating sheet is less than the resistor value of the second graphite heating sheet. Each electric core is arranged on multiple lines. The first graphene heating sheet is provided with an insulating layer. USE - Power battery for an electric vehicle (claimed). ADVANTAGE - The battery reduces surface temperature distribution balance in a heating area, and uniformly realizes heating function of each internal core. DESCRIPTION OF DRAWING(S) - The drawing shows a top perspective view of a power battery for an electric vehicle.