Conductive slurry for preparing supercapacitor and preparation method thereof
A technology of supercapacitors and conductive pastes, applied in conductive materials dispersed in non-conductive inorganic materials, manufacturing of hybrid/electric double layer capacitors, cement production, etc. Enhanced conductivity, enhanced effect of polymerization
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preparation example Construction
[0032] The preparation method of described modified fly ash comprises:
[0033] S11, prepare modified solution, described modified solution is made of NaOH solution and NaHCO 3 Solution composition;
[0034] S12, adding the modified solution to common fly ash, stirring evenly, and standing to obtain a mixed solution;
[0035] S13, drying and roasting the mixed solution to obtain modified fly ash.
[0036] Common fly ash contains a large number of micro glass beads, the composition is silicon dioxide, and the structure is compact. The NaOH solution and NaHCO in the modified solution of the present invention 3 The solution can corrode silicon dioxide, causing the tiny glass beads in ordinary fly ash to be corroded to produce a large number of cavities, which can accelerate the transmission of conductive particles.
[0037] Specifically, the present invention consists of NaOH solution and NaHCO 3 The modified solution composed of solution can destroy part of the glassy struct...
Embodiment 1
[0064] S1. Add 56 parts of ordinary fly ash to 560 parts of modified solution, stir at room temperature for 2 hours, let it stand for 30 minutes, then put it in an oven at 80°C for drying, and then place it in a muffle furnace at 600°C , heat preservation for 2 hours, to obtain modified fly ash;
[0065] Wherein, the modified solution consists of 1mol / L NaOH solution and 1mol / L NaHCO 3 Solution composition, volume of NaOH solution: NaHCO 3 The volume of the solution = 3:1;
[0066] S2. Mix 2 parts of lithium chloride and 2 parts of sodium fluoride evenly to obtain an ion enhancer:
[0067] S3, adding 3 parts of ferrosilicon powder containing 90% silicon and having a fineness of 300 meshes into 28 parts of potassium silicate aqueous solution with a modulus of 2.0 and a concentration of 48% and stirred evenly to obtain a modified alkali activator;
[0068] S4. Add the newly prepared modified alkali activator into the mixed powder of the uniformly mixed ion enhancer and modifi...
Embodiment 2
[0071] S1. Add 64 parts of ordinary fly ash to 640 parts of the modified solution, stir at room temperature for 2 hours, let it stand for 30 minutes, then put it in an oven at 90°C for drying, and then place it in a muffle furnace at 600°C , heat preservation for 2 hours, to obtain modified fly ash;
[0072] Wherein, the modified solution consists of 1mol / L NaOH solution and 1mol / L NaHCO 3 Solution composition, volume of NaOH solution: NaHCO 3 The volume of the solution = 3:1;
[0073] S2. Mix 3 parts of lithium chloride and 3 parts of sodium fluoride evenly to obtain an ion enhancer:
[0074] S3, adding 5 parts of silicon-containing 95% ferrosilicon powder with a fineness of 400 mesh into 30 parts of potassium silicate aqueous solution with a modulus of 2.0 and a concentration of 52%, and stirred evenly to obtain a modified alkali activator;
[0075] S4. Add the newly prepared modified alkali activator into the mixed powder of the uniformly mixed ion enhancer and modified ...
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Abstract
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