▎ 摘　　要

NOVELTY - Graphene-based solid metal lithium battery comprises a cathode current collector lithium iron phosphate-graphenyl composite (1), a first separator polypropylene (2), a solid electrolyte V2S5-graphene-based composite material (3), a second separator polypropylene (4) and a anode current collector metal lithium (5) and battery case. The battery casing is provided with cathode current collector lithium iron phosphate-graphenyl composite and cathode current collector metal lithium. The first separator polypropylene is coated between the cathode current collector lithium iron phosphate-graphenyl composite and the solid electrolyte V2S5-graphene-based composite material. A second separator polypropylene is coated between the solid electrolyte V2S5-graphene-based composite material and the anode current collector metal lithium. The anode current collector lithium iron phosphate-graphenyl composite is provided with a anode lead at its top end. USE - Used as graphene-based solid metal lithium battery. ADVANTAGE - The battery is suitable for power batteries of energy vehicles; has excellent electronic conductivity, high energy density and high safety; reduces internal resistance; and improves stability of electrode solid/solid interface contact. DETAILED DESCRIPTION - Graphene-based solid metal lithium battery comprises a cathode current collector lithium iron phosphate-graphenyl composite (1), a first separator polypropylene (2), a solid electrolyte V2S5-graphene-based composite material (3), a second separator polypropylene (4) and a anode current collector metal lithium (5) and battery case. The battery casing is provided with cathode current collector lithium iron phosphate-graphenyl composite and cathode current collector metal lithium. The first separator polypropylene is coated between the cathode current collector lithium iron phosphate-graphenyl composite and the solid electrolyte V2S5-graphene-based composite material. A second separator polypropylene is coated between the solid electrolyte V2S5-graphene-based composite material and the anode current collector metal lithium. The anode current collector lithium iron phosphate-graphenyl composite is provided with an anode lead at its top end. A cathode lead is provided at the top end of the negative current collector metal lithium. The anode lead and the cathode lead serve as the electrode tips of the anode and the cathode, respectively. An INDEPENDENT CLAIM is also included for use of battery, comprising transporting electron from the anode collector lithium iron phosphate-graphenyl composite to negative current collector metal lithium through an external circuit and a charger, when charging, passing lithium ion through the first separator polypropylene, second separator polypropylene and solid electrolyte V2S5-graphene-based composite material, entering into the crystal structure of the negative current collector metal lithium, where the negative current collector metal lithium itself does not have electron and lithium ion migration and the solid electrolyte V2S5-graphene-based composite material is a graphene-based composite, and there are a large number of network pore structures inside, which have strong lithium storage capacity, when chagrining, adsorbing metallic lithium ions under van der Waals forces and subjecting to contact permeation, where the crystal structure of the negative current collector metal lithium cannot be made electrically neutral, and transporting the electrons from the external circuit to the crystal structure of the anode collector lithium iron phosphate-graphenyl composite by the electric device. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the graphene-based solid metal lithium battery. Cathode current collector lithium iron phosphate-graphenyl composite (1) First separator polypropylene (2) Solid electrolyte V2S5-graphene-based composite material (3) Second separator polypropylene (4) Anode current collector metal lithium (5)