▎ 摘　　要

NOVELTY - The preparation method of a solid polymer battery involves preparing a solid battery anode material, a solid battery cathode material, a solid electrolyte material and a battery cell unit. The preparation of the anode material involves: adding lithium iron phosphate, nickel-cobalt-manganese-aluminum, ethyl orthosilicate and deionized water into absolute ethyl alcohol for mixing to obtain a mixture; placing the mixture into a mortar at 30-50degrees Celsius, mixing, grinding for 4 hours, and heating and stirring the obtained slurry for 8 hours at 80-100degrees Celsius to obtain a dry mixture; sintering the dry mixture; cooling, crushing and sieving to obtain a multi-component polymer; adding methyl pyrrolidone, polystyrene spheres, nano-graphene oxide and a binder into the polymer, and mixing for 2 hours at 30-50 degrees Celsius to obtain anode slurry; and coating the obtained slurry on the surface of an aluminum foil, drying in the air, heating for 6 hours in a vacuum drying oven at 100 degrees Celsius, and evaporating the solvent. USE - Preparation method of solid polymer battery. ADVANTAGE - The method prepares solid polymer battery having light-weight, high energy density, improved rate performance, fast charging speed, and high battery safety.