▎ 摘 要
NOVELTY - Composite polycrystalline structure of Graphene and lithium iron phosphate is formed by in-situ growing the graphene layer structure on lithium iron phosphate. USE - As composite polycrystalline structure of Graphene and lithium iron phosphate (claimed). ADVANTAGE - The composite polycrystalline structure of Graphene and lithium iron phosphate has electric conductive property, and ion-conductive property, where the conductivity is high. The preparation method is simple; has low cost; and is suitable for industrial production.