▎ 摘　　要

NOVELTY - A lithium-ion battery composite graphite anode comprises 94-96 wt.% graphite and 4-6 wt.% sub-graphene. The sub-graphene is composed of several layers of graphene and diamond. The weight ratio of the multilayered sheet graphene to diamond is 18-19:1. The multilayered sheet graphene is composed of 3-5 layers of graphene. The thickness of each layer of multilayered sheet graphene is 0.2-0.5 nm. The interlayer spacing of two adjacent layers of the multilayered sheet graphene is 0.2-0.4 nm. The diamond is spherical carbon with particle diameter of 0.7-1.6 nm. USE - Lithium-ion battery composite graphite anode (claimed). ADVANTAGE - The lithium-ion battery composite graphite anode increases the thermal conductivity without changing the other structure of the battery, promptly dissipates the heat generated during the battery power generation, discharges large current effectively, and ensures low energy consumption and extended battery life. DETAILED DESCRIPTION - Lithium-ion battery composite graphite anode comprises 94-96 wt.% graphite and 4-6 wt.% sub-graphene. The sub-graphene is composed of several layers of graphene and diamond. The diamond is located between two adjacent layers of the multilayered sheet graphene. The diamond corresponds to the carbon atoms of multilayered sheet graphene. The weight ratio of the multilayered sheet graphene to diamond is 18-19:1. The multilayered sheet graphene is composed of 3-5 layers of graphene. The thickness of each layer of multilayered sheet graphene is 0.2-0.5 nm. The interlayer spacing of two adjacent layers of the multilayered sheet graphene is 0.2-0.4 nm. The diamond is spherical carbon with particle diameter of 0.7-1.6 nm. An INDEPENDENT CLAIM is included for preparation of lithium-ion battery composite graphite anode.