▎ 摘　　要

NOVELTY - One-step synthesizing of lithium iron phosphate/graphene composite material by template method comprises (i) preparing lithium iron phosphate precursor solution comprising dissolving lithium source material, ferrous source material and phosphorus source material in organic solvent, stirring until it is completely dissolved to obtain a light blue precursor solution, and adjusting the pH value of solution to neutral by acid, where the molar ratio of iron source, lithium source and phosphorus source is nFe:nLi:nP i.e. 1:3:1, (ii) dissolving 2-7 wt.% graphene oxide calculated from theoretical amount of lithium iron phosphate calculated from the above source materials in organic solvent, firstly stirring for 10-20 minutes, and ultrasonically dispersing for 1-3 hours to obtain graphene oxide dispersion solution, and (iii) dissolving specific template material by organic solvent to obtain template solution, adding template solution to lithium iron phosphate precursor solution, and stirring. USE - The method is useful for one-step synthesizing of lithium iron phosphate/graphene composite material by template method. ADVANTAGE - The method: controls the morphological characteristics and particle size of lithium iron phosphate with the particle size of between 100-300 nm. The composite material: has specific capacity of 165 mAh/g. DETAILED DESCRIPTION - One-step synthesizing of lithium iron phosphate/graphene composite material by template method comprises (i) preparing lithium iron phosphate precursor solution comprising dissolving lithium source material, ferrous source material and phosphorus source material in the organic solvent, stirring until it is completely dissolved to obtain a light blue precursor solution, and adjusting the pH value of solution to neutral by acid, where the molar ratio of iron source, lithium source and phosphorus source is nFe:nLi:nP i.e. 1:3:1, (ii) dissolving 2-7 wt.% graphene oxide calculated from theoretical amount of lithium iron phosphate calculated from the above source materials in an organic solvent, firstly stirring for 10-20 minutes, and ultrasonically dispersing for 1-3 hours to obtain graphene oxide dispersion solution, (iii) dissolving specific template material by organic solvent to obtain template solution, adding template solution to lithium iron phosphate precursor solution obtained in step (i), and stirring to obtain first mixed solution, where the amount of specific template material is 5-7% of the theoretical amount of lithium iron phosphate generated, and the specific template agent comprises specific surface area of finally synthesized lithium iron phosphate material to be greater than 35 m2/g and the particle size to be at the nanometer level, (iv) pouring graphene oxide dispersion solution obtained in step (ii) into first mixed solution in step (iii) to obtain second mixed solution, (v) placing second mixed solution in step (iv) in a hydrothermal reaction kettle under protective atmosphere, heating to 180-200 degrees C and keeping at constant temperature and pressure for 18-24 hours, cooling, filtering or centrifuging to obtain solid phase precursor, and (vi) placing solid phase precursor obtained in step (v) in a vacuum oven at 60-80 degrees C for 10-15 hours, and grinding to obtain the finished product.