▎ 摘　　要

NOVELTY - The method involves providing detachable thermal insulation cover by sleeved outside the power battery pack. The power battery pack is composed of graphene lithium-ion batteries, while providing a certain gap between batteries. The graphene lithium-ion batteries are provided with structure of having insulating layer (3) close to outer surface of battery main portion (1). A thermal sensor (2) is inserted between the lithium-ion battery main portion and insulating layer. A biaxially symmetrical metal foil electrode (4A,4B) is arranged on the outer surface of insulating layer, and coated on the insulating layer, and the metal graphene electric heating layer (5) is formed on the outer surface of foil electrode. One end of the biaxially symmetric metal foil electrode is provided by respectively surrounding the two ends of lithium ion battery or extending parallel to axis of lithium ion battery to the other end, while respectively extending other end from lithium ion battery ends. USE - Energy vehicle power battery graphene thermal management method. ADVANTAGE - The vehicle power battery graphene thermal management process is carried out in such a way to provide the characteristics of fast heating speed, high heat conversion efficiency, energy saving and environmental protection, easy to control, and include electric heating function and heat dissipation function. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the energy vehicle power battery. Lithium ion battery main portion (1) Thermal sensor (2) Insulating layer (3) Meta foil electrodes (4A,4B) Metal graphene electric heating layer (5)