Preparation method of Ag2CrO4@Ag modified carbon fluoride positive electrode material
A positive electrode material, carbon fluoride technology, applied in the direction of positive electrode, battery electrode, active material electrode, etc., can solve the problem of insignificant improvement effect.
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Embodiment 1
[0044] a kind of Ag 2 CrO 4 The preparation method of the carbon fluoride cathode material modified by @Ag comprises the following steps:
[0045] (1) Preparation of potassium chromate solution: K 2 CrO 4 Disperse in deionized water, stir for 0.6h until uniform, and prepare a potassium chromate solution with a mass concentration of 16.6%;
[0046] (2) Preparation of fluorinated carbon dispersion: according to the mass ratio of fluorinated carbon: absolute ethanol: ultrapure water: polyvinylpyrrolidone = 1:1:1:1, first mix the absolute ethanol and ultrapure water evenly Finally, add carbon fluoride, and slowly add polyvinylpyrrolidone at the same time, stir for 1 hour until uniform, and obtain a carbon fluoride dispersion;
[0047] (3) Prepare the mixed solution: stir the potassium chromate solution and the carbon fluoride dispersion for 0.6h until uniform, and prepare the mixed solution;
[0048] (4) Prepare silver nitrate solution: disperse silver nitrate in deionized wa...
Embodiment 2
[0053] a kind of Ag 2 CrO 4 The preparation method of the carbon fluoride cathode material modified by @Ag comprises the following steps:
[0054] (1) Preparation of potassium chromate solution: K 2 CrO 4 Disperse in deionized water, stir for 0.7h until uniform, and prepare a potassium chromate solution with a mass concentration of 25%;
[0055] (2) Preparation of carbon fluoride dispersion: according to the mass ratio of carbon fluoride: absolute ethanol: ultrapure water: polyvinyl pyrrolidone = 1:1.5:1.5: 1.5, first mix the absolute ethanol and ultrapure water evenly Finally, add carbon fluoride, and at the same time slowly add polyvinylpyrrolidone, stir for 1.1h until uniform, and obtain a carbon fluoride dispersion;
[0056] (3) Prepare the mixed solution: stir the potassium chromate solution and the carbon fluoride dispersion for 0.7h until uniform, and prepare the mixed solution;
[0057] (4) Preparation of silver nitrate solution: disperse silver nitrate in deioniz...
Embodiment 3
[0063] a kind of Ag 2 CrO 4 The preparation method of the carbon fluoride cathode material modified by @Ag comprises the following steps:
[0064] (1) Preparation of potassium chromate solution: K 2 CrO 4 Disperse in deionized water, stir for 0.8h until uniform, and prepare a potassium chromate solution with a mass concentration of 20%;
[0065] (2) Preparation of fluorinated carbon dispersion: according to the mass ratio of fluorinated carbon: absolute ethanol: ultrapure water: polyvinyl pyrrolidone = 1:1.1:1.2:1, first mix the absolute ethanol and ultrapure water evenly Finally, add carbon fluoride, and slowly add polyvinylpyrrolidone at the same time, stir for 1.2 hours until uniform, and obtain a carbon fluoride dispersion;
[0066] (3) Prepare the mixed solution: stir the potassium chromate solution and the carbon fluoride dispersion for 0.8h until uniform, and prepare the mixed solution;
[0067] (4) Prepare silver nitrate solution: disperse silver nitrate in deioni...
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