Carbon nanotube and ferric oxide composite carbon titanium aluminide lithium ion battery negative electrode material and preparation method thereof
A technology for ferric oxide and lithium ion batteries, applied in battery electrodes, secondary batteries, circuits, etc., can solve problems such as volume change and capacity decay, and achieve simple preparation process, excellent electrochemical performance of materials, and excellent electrochemical performance. performance effect
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Embodiment 1
[0039] Example 1—Fe 2 o 3 Composite Ti 3 C 2 T x Lithium-ion battery anode material #1
[0040] 1 g Ti 3 AlC 2 The powder is passed through a 325 mesh sieve, and then the Ti 3 AlC 2 The powder is dispersed into a 50% hydrofluoric acid aqueous solution by mass percentage, left to stand at a room temperature of 20-25 degrees Celsius for 24 hours, and the precipitate is centrifuged for 5 times with distilled water until the pH of the solution is 5. Then the precipitate was put into a vacuum drying oven and dried at 80° C. for 12 hours to obtain a black powder. Dissolve 0.8 g of sodium hydroxide in 20 ml of distilled water, then add the resulting black powder into the sodium hydroxide solution, stir for 0.5 hour at room temperature at 20-25 degrees Celsius, and dissolve 0.04 g of FeCl 2 Put it into the above solution, stir at room temperature 20-25 degrees Celsius for 5 hours, and continue ultrasonic oscillation for 30 minutes to obtain a yellow suspension. Put the yello...
Embodiment 2
[0042] Example 2—Fe 2 o 3 Composite Ti 3 C 2 T x Li-ion battery anode material #2
[0043] 1 g Ti 3 AlC 2 The powder is passed through a 325 mesh sieve, and then the Ti 3 AlC 2The powder is dispersed into a 50% hydrofluoric acid aqueous solution by mass percentage, left to stand at a room temperature of 20-25 degrees Celsius for 24 hours, and the precipitate is centrifuged for 5 times with distilled water until the pH of the solution is 5. Then the precipitate was put into a vacuum drying oven and dried at 80° C. for 12 hours to obtain a black powder. Dissolve 0.8 g of sodium hydroxide in 20 ml of distilled water, then add the resulting black powder into the sodium hydroxide solution, stir at room temperature for 0.5 hour, and dissolve 0.16 g of FeCl 2 Put it into the above solution, stir at room temperature for 5 hours, and continue ultrasonic oscillation for 30 minutes to obtain a yellow suspension. Put the yellow suspension into a reaction kettle with a polytetraf...
Embodiment 3
[0045] Example 3—Fe 2 o 3 Composite Ti 3 C 2 T x Lithium-ion battery anode material #3
[0046] 1 g Ti 3 AlC 2 The powder is passed through a 325 mesh sieve, and then the Ti 3 AlC 2 The powder is dispersed into a 50% hydrofluoric acid aqueous solution by mass percentage, left to stand at a room temperature of 20-25 degrees Celsius for 24 hours, and the precipitate is centrifuged for 5 times with distilled water until the pH of the solution is 5. Then the precipitate was put into a vacuum drying oven and dried at 80° C. for 12 hours to obtain a black powder. Dissolve 0.8 g of sodium hydroxide in 20 ml of distilled water, then add the resulting black powder into the sodium hydroxide solution, stir for 0.5 hours at room temperature at 20-25 degrees Celsius, and dissolve 0.8 g of FeCl 2 Put it into the above solution, stir at room temperature 20-25 degrees Celsius for 5 hours, and continue ultrasonic oscillation for 30 minutes to obtain a yellow suspension. Put the yello...
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