▎ 摘　　要

NOVELTY - The utility model claims a battery for positive electrode current collector of lithium ion battery, comprising the current collector and device for preparing current collector to the lithium ion battery with high power, belonging to the secondary battery technical field. A lithium ion battery anode current collector, comprising an aluminium foil substrate, the aluminum foil substrate surface is a rough surface, which has a height of 0.5 to 5 microns of micro-convex volume, depositing a graphene layer on the at least one surface of the aluminum foil substrate. The utility model claims a collector, the first graphene layer and the aluminium foil basal body has good bonding force, increase the conductivity of the current collector and improve the electrode life; second graphene greatly improve adhesion of the current collector and the electrode active material, the interfacial contact resistance reduce the collector and active material, so as to improve the high power discharge capability of the lithium ion battery.