Method for preparing electrode carbon material of sodium ion battery by utilizing peanut shell
A sodium-ion battery and peanut shell technology, which is applied in battery electrodes, secondary batteries, chemical instruments and methods, etc., can solve the problems of pollution, waste of resources and the environment, and achieve the goal of increasing battery capacity, low cost, and increasing specific surface area Effect
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Embodiment 1
[0031] A kind of method utilizing peanut shell to prepare sodium ion battery electrode carbon material, comprises the following steps:
[0032] Step 1. After washing the peanut shells with ethanol and deionized water respectively, place them in a blast drying oven for 24 hours at 60°C;
[0033] Step 2. Place the dried peanut shells in a porcelain boat, use a high-temperature tube furnace to heat up to 800°C at a rate of 30°C / min under the protection of an inert atmosphere, and then heat-preserve and carbonize for 4 hours;
[0034] Step 3. Grinding the carbonized peanut shells into powder, and then sieving with a 100-mesh sieve to obtain a peanut shell-derived carbon powder with uniform particles, which is the electrode carbon material for sodium ion batteries; image 3 It is the peanut shell derived carbon XRD pattern prepared in Example 1. Where the abscissa is the angle and the ordinate is the relative intensity. Depend on image 3 It can be seen that there are obvious gr...
Embodiment 2
[0036] A kind of method utilizing peanut shell to prepare sodium ion battery electrode carbon material, comprises the following steps:
[0037] Step 1. After washing the peanut shells with ethanol and deionized water respectively, place them in a blast drying oven for 24 hours at 60°C;
[0038] Step 2. Place the dried peanut shells in a porcelain boat, use a high-temperature tube furnace to heat up to 750°C at a rate of 15°C / min under the protection of an inert atmosphere, and then heat-preserve and carbonize for 12 hours;
[0039] Step 3: Grind the carbonized peanut shells into powder, and then sieve through a 100-mesh sieve to obtain a peanut shell-derived carbon powder with uniform particles, which is the electrode carbon material for sodium ion batteries.
Embodiment 3
[0041] A kind of method utilizing peanut shell to prepare sodium ion battery electrode carbon material, comprises the following steps:
[0042] Step 1. After washing the peanut shells with ethanol and deionized water respectively, place them in a blast drying oven for 24 hours at 60°C;
[0043] Step 2. Place the dried peanut shells in a porcelain boat, use a high-temperature tube furnace to heat up to 850°C at a rate of 20°C / min under the protection of an inert atmosphere, and then heat-preserve and carbonize for 3 hours;
[0044] Step 3: Grind the carbonized peanut shells into powder, and then sieve through a 100-mesh sieve to obtain a peanut shell-derived carbon powder with uniform particles, which is the electrode carbon material for sodium ion batteries.
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