▎ 摘　　要

NOVELTY - Electrode material (110) comprises: a conductive matrix comprising many graphene sheets (114); and many lithium iron silicate based nanoparticles (112) coupled to the conductive matrix. USE - The electrode material is useful in the battery, where the battery is useful in a portable electronic device, an electric vehicle or an energy storage device (all claimed). ADVANTAGE - The electrode material utilizes the graphene sheets that improve the electrical conductivity and avoids re-stacking of the nanocomposite cathode material as compared to the lithium iron silicate-based nanoparticles alone. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) a battery comprising an electrode with the material; and (2) making the electrode material, comprising preparing a solution containing a lithium oxide, a silicon oxide, and iron, adding graphene oxide to the solution, heating the solution to produce many lithium iron silicate based nanoparticles over the graphene oxide, and sintering the nanoparticles to reduce the graphene oxide to graphene and produce a nanocomposite material. DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of the lithium iron silicate-based/Graphene nanocomposite material. Electrode material (110) Lithium iron silicate based nanoparticles (112) Graphene sheets (114)