A kind of method utilizing honeycomb to prepare sodium-ion battery negative electrode material
A technology of sodium ion battery and negative electrode material, applied in the fields of energy storage materials and electrochemistry, can solve the problems of poor cycle performance of hard carbon, high cost, low capacity in the first cycle, etc., and achieves low cost, increased capacity, and good repeatability. Effect
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Embodiment 1
[0024] Honeycomb prepared utilizing sodium ion battery negative electrode material, comprising the steps of:
[0025] Step 1, a hornet crushed to a size of about 1cm, and then stirred in 1mol / L hydrochloric acid solution washed 2h, was isolated by filtration to afford the product 12h was dried in an oven at 80 ℃, to remove water;
[0026] Step 2, the step of drying the sample was placed in a tube furnace, under the protection of argon at 5 ℃ / min heating rate from room temperature warmed to 400 ℃, incubated 2h, after completion, allowed to cool in the furnace to rt, removed;
[0027] Step 3, Step 2 of the sample after processing into a tube furnace, under the protection of argon at 5 ℃ / min, heating rate from room temperature to 1200 deg.] C temperature rise, heat 2h, the pyrolysis reaction occurs, the reaction was complete after , and then cooled to room temperature, taken out;
[0028] Step 4, Step 3 was stirred wash samples taken in 1mol / L hydrochloric acid solution IH, f...
Embodiment 2
[0032] Honeycomb prepared utilizing sodium ion battery negative electrode material, comprising the steps of:
[0033] Step 1, a hornet crushed to a size of about 1cm, and then stirred in 1mol / L hydrochloric acid solution washed 12h, separated by filtration to afford the product 12h was dried in an oven at 80 ℃, to remove water;
[0034] Step 2, the step of drying the sample was placed in a tube furnace, under the protection of argon at 5 ℃ / min heating rate from room temperature warmed to 400 ℃, incubated 2h, after completion, allowed to cool in the furnace to rt, removed;
[0035] Step 3, Step 2 of the sample after processing into a tube furnace, under the protection of argon at 5 ℃ / min heating rate from room temperature to heating 1000 ℃, incubated 2h, the pyrolysis reaction occurs, the reaction was complete after , and then cooled to room temperature, taken out;
[0036] Step 4, Step 3 was stirred wash samples taken in 1mol / L hydrochloric acid solution IH, filtered, and ...
Embodiment 3
[0038] Honeycomb prepared utilizing sodium ion battery negative electrode material, comprising the steps of:
[0039] Step 1, a hornet crushed to a size of about 1cm, and then stirred at 2mol / L hydrochloric acid solution 10H washed, separated by filtration to afford the product 12h was dried in an oven at 80 ℃, to remove water;
[0040] Step 2, the step of drying the sample was placed in a tube furnace, under nitrogen protection, to 5 ℃ / min heating rate from room temperature warmed to 500 ℃, IH heat, is completed, the furnace cooled to room temperature ,take out;
[0041] Step 3, the sample treated in step 2 into a tube furnace, under the protection of nitrogen at a heating rate of 5 ℃ / min heating from room temperature to 1400 deg.] C, incubated 2h, reaction is pyrolyzed, after the completion of the reaction, furnace cooling to room temperature, taken out;
[0042] Step 4, Step 3 was stirred wash samples taken at 2mol / L hydrochloric acid solution 5h, filtered, and the prod...
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