▎ 摘　　要

NOVELTY - The solid lithium battery comprises a lithium cathode layer (1), a solid electrolyte layer (2), anode layer (3), and polymer gel electrolyte sheet (4). The solid electrolyte layer is located between the lithium cathode layer and the anode layer. The polymer gel electrolyte layer is located in the lithium cathode layer or located in the solid electrolyte layer or located in the anode layer. The lithium cathode layer is provided with lithium metal storage modified layer (11). The lithium metal storage modified layer is coated on the surface of the lithium metal. The lithium metal storage modified layer is provided with carbon material or silver material. The lithium storage modification layer includes a lithium storage material and a negative electrode binder. The lithium storage material is graphite, hard carbon, soft carbon, carbon nanotubes, and silver. The negative electrode binder is polyfluorinated hydrocarbon binder. USE - Solid lithium battery for use in energy vehicle. ADVANTAGE - The solid lithium battery has excellent safety performance, high energy density, and long cycle life. The lithium cathode and anode are surface modified, combined with ceramic particles with wide electrochemical window, improving interface compatibility between the anode and the solid electrolyte layer. The formed lithium compound can improve the uniformity of the lithium surface electric application, so as to promote the uniform deposition and stripping of the subsequent lithium, so that the lithium metal and lithium dendritic crystal can be inhibited. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method of solid lithium battery. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the solid lithium battery. Lithium cathode layer (1) Solid electrolyte layer (2) Anode layer (3) Polymer gel electrolyte sheet (4) Lithium metal storage modified layer (11)