▎ 摘　　要

NOVELTY - The utility model claims a graphite lithium ion battery, comprising an anode current collector, graphene, positive electrode active material layer, an electrolyte layer, and a negative electrode active material layer and a negative electrode current collector. the graphene layer is a graphene layer between the anode current collector and the anode active material layer, the graphene layer is composed of a plurality of mutually spaced step-shaped graphene of step, the step each graphene is formed by multilayer graphene single layer graphene, the step is gradually reduced to form a stepped structure with the anode collector to the positive electrode active material layer; the lithium ion battery of the utility model passes through the multilayer graphene layer is set into step-shape, and not only can reduce the contact resistance and enhanced conductivity, also can increase surface area contact with the active material layer, increasing the surface area and volume, so it has good charging and discharging performance and circulation performance.