A kind of flexible protection material of lithium metal negative electrode and preparation method thereof
A technology of lithium metal negative electrode and protective material, applied in the direction of negative electrode, lithium storage battery, battery electrode, etc., can solve the problems such as failure to achieve commercial application, unsuitable for large-scale production and utilization, complex processing technology of lithium metal negative electrode protective material, etc. , to achieve the effect of enhancing electrical conductivity and energy storage capacity, large specific surface area, and inhibiting growth
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Embodiment 1
[0021] Weigh 2.0g nickel acetate tetrahydrate (NiC 4 h 6 o 4 4H 2 0) be dissolved in 150mL ethanol, stirring and dissolving, obtain nickel acetate solution; After cleaning the silk with dehydrated alcohol, then soak the silk of 2.0g in the above-mentioned nickel acetate solution and stir 48h, make the silk surface adsorption one deck nickel ion, Then add 1.0g of 2,4,7-triamino-6-phenylpteridine, through coordination, the surface of nickel ion is coordinated with triphenylpterine, and the nickel ion and triphenylpteridine are loaded. silk fiber; the above-mentioned silk fiber loaded with nickel ions and triteridine was placed in a blast drying oven at 80°C for 12 hours, then pressed into a sheet-like sample, and the sheet-like sample was placed in a nitrogen atmosphere in a tube furnace Sintering at 500°C for 6h, and then cooling to room temperature to obtain a lithium metal negative electrode flexible protection material.
[0022] The obtained lithium metal negative electr...
Embodiment 2
[0024] Weigh 2.0g of nickel acetate tetrahydrate and dissolve it in 150mL of ethanol, stir and dissolve to obtain a nickel acetate solution; wash the silk with absolute ethanol, then soak 2.0g of silk in the above nickel acetate solution and stir for 48h to make the silk A layer of nickel ions is adsorbed on the surface, and then 1.0g of 2,4,7-triamino-6-phenylpteridine is added to coordinate the surface of nickel ions with triaminophenylpteridine to obtain nickel-loaded ions and triphenylteridine silk fibers; the above-mentioned silk fibers loaded with nickel ions and triphenylteridine were placed in a blast drying oven at 80°C for 12 hours, then pressed into a sheet-like sample, and the sheet-like sample was placed Sintering at 700°C for 4 hours in a nitrogen atmosphere in a tube furnace, and then cooling to room temperature, a flexible protective material for lithium metal negative electrodes was obtained. Conduct powder X-ray diffraction analysis on the obtained lithium me...
Embodiment 3
[0026]Weigh 2.0g of nickel acetate tetrahydrate and dissolve it in 150mL of ethanol, stir and dissolve to obtain a nickel acetate solution; wash the silk with absolute ethanol, then soak 2.0g of silk in the above nickel acetate solution and stir for 48h to make the silk A layer of nickel ions is adsorbed on the surface, and then 1.0g of 2,4,7-triamino-6-phenylpteridine is added to coordinate the surface of nickel ions with triaminophenylpteridine to obtain nickel-loaded ions and triphenylteridine silk fibers; the above-mentioned silk fibers loaded with nickel ions and triphenylteridine were placed in a blast drying oven at 80°C for 12 hours, then pressed into a sheet-like sample, and the sheet-like sample was placed Sintering at 600°C for 5h in a nitrogen atmosphere in a tube furnace, and then cooling to room temperature, a flexible protective material for a lithium metal negative electrode was obtained. The obtained lithium metal negative electrode flexible protective materia...
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