▎ 摘 要
NOVELTY - Nano-sheet-stacked lithium iron phosphate/graphene composite material comprises lithium iron phosphate nano-sheet stacked into micron-sized shuttle particles with graphene composite to form anode material. USE - Nano-sheet-stacked lithium iron phosphate/graphene composite material used as anode material (claimed). ADVANTAGE - The nano-sheet-stacked lithium iron phosphate/graphene composite material has simple preparation, low cost, and excellent electrochemical performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of nano-sheet-stacked lithium iron phosphate/graphene composite material comprising mixing lithium source and iron source, dissolving in ethylene glycol, preparing into solution containing lithium source and iron source, adding phosphoric acid, where mol ratio of phosphorus atom, lithium atom and iron atom is 1-1.5:3-2.7:1, sequentially adding ammonium persulfate and graphene oxide, forming dispersion liquid, transferring the dispersion liquid in stainless steel reaction kettle with PTFE lining, reacting at 160-200 degrees C for 8-20 hours, naturally cooling to room temperature, centrifuging, respectively washing the precipitates with deionized water and absolute ethanol, putting in a drying box, drying, placing the precipitates in protective atmosphere, roasting at 600-750 degrees C for 3-10 hours, cooling to room temperature and obtaining product.