DEVELOPMENT OF THE ULTRAHIGH POWER LITHIUM ION BATTERY ANODE MATERIAL USING DYNAMICALLY SIZE TRANSFORMABLE METAL OXIDES-CARBON NANOSTRUCTURE COMPOSITES

摘要

PURPOSE: A manufacturing method of ultrahigh power lithium ion battery anode material is provided to improve electron transfer speed, diffusion rate of lithium ion, and to react more effectively. CONSTITUTION: A manufacturing method of ultrahigh power lithium ion battery anode material comprises: a step of adding carbon nanostructure into ethylene glycol solution, and dispersing the same by using ultrasonic wave; a step of adding ethylene glycol solution in which transition metal precursor is dissolved, and adding 1M of NaOH aqueous solution as a reducing agent; a step of reducing the metal salt by heating the outcome in a microwave oven for 60-120 sec; a step of centrifugal separating the dispersion at 6000-8000 rpm for 10-20 minutes; and a step of vacuum drying at 50-70 °C, heat-treating at 250-350 °C under hydrogen atmosphere, and heat-treating at 200 °C under air atmosphere.