A kind of film material and preparation method thereof for inhibiting lithium dendrite growth
A technology of thin film materials and lithium dendrites, which is applied in rayon manufacturing, fiber processing, textiles and papermaking, etc., can solve the problems of inability to induce uniform nucleation of lithium, poor lithium affinity, etc., to improve cycle life and safety, Effects of lithium dendrite growth inhibition and uniform deposition
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Embodiment 1
[0024] Weigh 1.0mmol (0.0961g) of 1,2-dimethylimidazole (C 5 h 8 N 2 ) was dissolved in 20mL of N,N-dimethylformamide (DMF), then 2.0g of PAN (polyacrylonitrile) was added and stirred for 2h to obtain a light yellow mixture solution precursor; the above light yellow mixture solution The precursor was electrospun at a voltage of 18kV and a flow rate of 0.7mL / h in an atmosphere with a relative humidity of 35%; the electrospun product obtained above was dried at 80°C;
[0025] Weigh 3.0mmol (0.288g) of 1,2-dimethylimidazole and dissolve it in 10mL of methanol to make solution A; weigh 1.0mmol (0.249g) of cobalt acetate tetrahydrate and dissolve it in 10mL of methanol to make a solution B;
[0026] Soak the dried electrospinning product obtained above in solution B for 30 minutes and take it out, then soak it in solution A for 3 hours and take it out, repeat the above soaking three times in turn, then take it out and dry it to obtain a purple fiber film material; The purple fi...
Embodiment 2
[0029] Weigh 2.0mmol (0.0961g) of 1,2-dimethylimidazole (C 5 h 8 N 2 ) was dissolved in 20mL of N,N-dimethylformamide (DMF), then 4.0g of PAN (polyacrylonitrile) was added and stirred for 2h to obtain a light yellow mixture solution precursor; the above light yellow mixture solution The precursor was electrospun at a voltage of 20kV, a flow rate of 0.9mL / h, and an atmosphere with a relative humidity of 45%; the electrospun product obtained above was dried at 80°C;
[0030] Weigh 1.0mmol (0.288g) of 1,2-dimethylimidazole and dissolve it in 10mL of methanol to make solution A; weigh 2.0mmol (0.249g) of cobalt acetate tetrahydrate and dissolve it in 10mL of methanol to make a solution B;
[0031] Soak the dried electrospinning product obtained above in solution B for 30 minutes and take it out, then soak it in solution A for 3 hours and take it out, repeat the above soaking three times in turn, then take it out and dry it to obtain a purple fiber film material; The purple fib...
Embodiment 3
[0033] Weigh 2.0mmol (0.0961g) of 1,2-dimethylimidazole (C 5 h 8 N 2 ) was dissolved in 20mL of N,N-dimethylformamide (DMF), then 3.0g of PAN (polyacrylonitrile) was added and stirred for 2h to obtain a light yellow mixture solution precursor; the above light yellow mixture solution The precursor was electrospun at a voltage of 19kV, a flow rate of 0.8mL / h, and an atmosphere with a relative humidity of 40%; the electrospun product obtained above was dried at 80°C;
[0034] Weigh 2.0mmol (0.288g) of 1,2-dimethylimidazole and dissolve it in 10mL of methanol to make solution A; weigh 2.0mmol (0.249g) of cobalt acetate tetrahydrate and dissolve it in 10mL of methanol to make a solution B;
[0035] Soak the dried electrospinning product obtained above in solution B for 30 minutes and take it out, then soak it in solution A for 3 hours and take it out, repeat the above soaking three times in turn, then take it out and dry it to obtain a purple fiber film material; The purple fib...
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