▎ 摘　　要

NOVELTY - A lithium-nickel-cobalt-manganese-bromine oxide/graphene composite anode material preparing method involves utilizing nickel source, cobalt source, manganese source, bromine source, lithium salt and combustion improver, mixing, adding solvent-A, drying, heating and cooling to obtain positive material, adding graphite oxide to solvent-B to obtain graphene oxide solution. The positive material is dissolved in ethanol, added with graphene oxide solution. The resultant material is transferred to kettle, followed by drying, cooling, washing, centrifuging and drying to obtain the finished product. USE - Method for preparing lithium-nickel-cobalt-manganese-bromine oxide/graphene composite anode material for use in portable electronic devices, electric vehicles and energy storage devices. ADVANTAGE - The method enables preparing the composite anode material with high specific capacity, good performance large magnification and superior cycle characteristics. DETAILED DESCRIPTION - A lithium-nickel-cobalt-manganese-bromine oxide (LiNixCoyMn1-x-yBrzO2-z)/graphene composite anode material preparing method involves utilizing nickel source, cobalt source, manganese source, bromine source, lithium salt and combustion improver at a certain mol ratio, mixing, adding solvent-A under stirring, drying, heating, subjecting for heat preservation and cooling to room temperature after grinding to 400-mesh sieve to obtain lithium-nickel-cobalt-manganese-bromine oxide positive pole material, adding graphite oxide to solvent-B to obtain graphene oxide solution. Th elithium-nickel-cobalt-manganese-bromine oxide positive pole material is dissolved in absolute ethanol, uniformly dispersed by magnetic stirring, added with graphene oxide solution and reducing agent solution and stirred for 0.5-3 hours to obtain resultant material. The resultant material is transferred to stainless steel high pressure kettle, followed by drying at 100-200 degrees C for 2-24 hours, cooling to room temperature, washing, centrifuging and drying to obtain the finished product, where x is 0-0.6, y is 0-0.6 and z is 0-0.2.