▎ 摘　　要

NOVELTY - Preparation of lithium-iron phosphate battery positive electrode slurry involves (s1) reacting graphene oxide, 1,2-butanediol and 3-aminopropyltrimethoxysilane to obtain modified graphene, (s2) reacting lithium hydroxide monohydrate, ferrous sulfate heptahydrate, phosphoric acid and modified graphene to obtain graphene-based lithium-iron phosphate, (s3) adsorbing phytic acid on the surface of graphene-based lithium-iron phosphate, and carbonizing to obtain a carbon-coated graphene-based lithium-iron phosphate, and (s4) reacting trifluoromethyl ethylene, allyl dimethyl silane, divinyl silane and trimethoxy silane to obtain trifluoromethyl hyperbranched binder, and mixing carbon-coated graphene-based lithium-iron phosphate, conductive carbon black, polyvinylidene fluoride (PVDF) binder, trifluoromethyl hyperbranched binder and N-methyl-2-pyrrolidone. USE - Preparation of lithium-iron phosphate battery positive electrode slurry. ADVANTAGE - The positive electrode slurry has excellent electrical performance and durable performance.