Preparation method of active carbon nanotube/ferric oxide lithium ion battery electrode material
A lithium iron oxide, carbon nanotube technology, applied in battery electrodes, nanotechnology, nanotechnology and other directions, can solve the complex process, limit the development and application of carbon nanotubes/iron oxide, and poor binding ability between iron oxide and carbon nanotubes and other problems, to achieve the effect of simple process, low cost, and improved bonding performance
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Embodiment 1
[0015] Weigh 1.0 g of dried unpurified carbon nanotube raw sample powder, mix and grind it with potassium hydroxide at a mass ratio of 1:0; heat up to a reaction temperature of 750 °C at a rate of 15 °C / min in a quartz tube furnace , the flow rate of argon gas is 8L / h, the reaction time is 1 hour, the temperature is taken out, and then the carbon nanotubes are repeatedly rinsed with deionized water, and the carbon nanotubes are filtered until the pH value of the solution reaches 7; the obtained activated carbon nanotubes are dispersed in alcohol and dried in a vacuum drying oven at 120° C. to obtain an activated carbon nanotube adsorption material with good water solubility. The modified magnetic carbon nanotube sample is filtered, washed with water, and vacuum-dried to obtain the iron oxide / carbon nanotube lithium ion electrode material. Disperse iron oxide / carbon nanotubes (80%), acetylene black (10%) and polyvinylidene fluoride (10%) in methylpyrrolidone solution, mix well,...
Embodiment 2
[0017] Weigh 1.0 g of dried unpurified carbon nanotube raw sample powder, mix and grind it with potassium hydroxide at a mass ratio of 1:1; heat up to a reaction temperature of 750 °C at a rate of 15 °C / min in a quartz tube furnace , the flow rate of argon gas is 8L / h, the reaction time is 1 hour, the temperature is taken out, and then the carbon nanotubes are repeatedly rinsed with deionized water, and the carbon nanotubes are filtered until the pH value of the solution reaches 7; the obtained activated carbon nanotubes are dispersed in alcohol and dried in a vacuum drying oven at 120° C. to obtain an activated carbon nanotube adsorption material with good water solubility. The modified magnetic carbon nanotube sample is filtered, washed with water, and vacuum-dried to obtain the iron oxide / carbon nanotube lithium ion electrode material. Disperse iron oxide / carbon nanotubes (80%), acetylene black (10%) and polyvinylidene fluoride (10%) in methylpyrrolidone solution, mix well,...
Embodiment 3
[0019] Weigh 1.0 g of dried unpurified carbon nanotube raw sample powder, mix and grind it with potassium hydroxide at a mass ratio of 1:2; heat up to a reaction temperature of 750 °C at a rate of 15 °C / min in a quartz tube furnace , the flow rate of argon gas is 8L / h, the reaction time is 1 hour, the temperature is taken out, and then the carbon nanotubes are repeatedly rinsed with deionized water, and the carbon nanotubes are filtered until the pH value of the solution reaches 7; the obtained activated carbon nanotubes are dispersed in alcohol and dried in a vacuum drying oven at 120° C. to obtain an activated carbon nanotube adsorption material with good water solubility. The modified magnetic carbon nanotube sample is filtered, washed with water, and vacuum-dried to obtain the iron oxide / carbon nanotube lithium ion electrode material. Disperse iron oxide / carbon nanotubes (80%), acetylene black (10%) and polyvinylidene fluoride (10%) in methylpyrrolidone solution, mix well,...
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