A method for preparing solid polymer electrolyte by doping organically modified magnetic nanofibers with magnetic field orientation
A solid polymer, magnetic nanotechnology, applied in the direction of electrolyte, electrolyte battery manufacturing, non-aqueous electrolyte battery, etc., can solve the problems of PEO solid electrolyte film formation, thermal stability and mechanical strength reduction, restricting PEO solid electrolyte, etc. To achieve the effect of suppressing dendrites, good compatibility and improving safety
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Embodiment 1
[0033] 1. Preparation of magnetic sepiolite: first, 4.0g FeCl 3 ·6H 2 O, 4.0g FeSO 4 ·7H 2 O was dissolved in 150mL deionized water, and stirred in a 250mL flask at 25°C for 20min; then, under vigorous stirring at 40°C, 6.0g of sepiolite was added to the flask, and after 20min, ammonia water was added to the stirring solution to pH ~ 9.0, and stirred in a water bath at 60 °C for 4 hours, when the precipitate was cooled to room temperature, washed three times with deionized water and ethanol.
[0034] 2. Use KH550 to organically modify the surface of magnetic sepiolite: first, under magnetic stirring at 40°C, disperse 6.0g magnetic sepiolite in 100g deionized water, then add 2.0g KH550 into the mixture solution, A homogeneous slurry is obtained. Then the pH of the solution was adjusted to about 5.0, stirred and heated at 80 °C for 4 hours; after the solution was cooled, the precipitate was washed with deionized water and ethanol several times.
[0035] 3. Preparation of ma...
Embodiment 2
[0040] 1. Preparation of magnetic sepiolite: first, 2.0g FeCl 3 ·6H 2 O, 2.0g FeSO 4 ·7H 2 O was dissolved in 150mL deionized water, and stirred in a 250mL flask at 25°C for 20min; then, under vigorous stirring at 40°C, 6.0g of sepiolite was added to the flask, and after 20min, ammonia water was added to the stirring solution to pH ~ 9.0, and stirred in a water bath at 60 °C for 4 hours, when the precipitate was cooled to room temperature, washed three times with deionized water and ethanol.
[0041] 2. Use KH550 to modify the surface of magnetic sepiolite: first, under magnetic stirring at 40°C, disperse 6.0g of magnetic sepiolite in 100g of deionized water, then add 2.0g of KH550 into the mixture solution to obtain Uniform slurry. Then the pH of the solution was adjusted to about 5.0, stirred and heated at 80 °C for 4 hours; after the solution was cooled, the precipitate was washed with deionized water and ethanol several times.
[0042] 3. Preparation of magnetically o...
Embodiment 3
[0045] 1. Preparation of magnetic sepiolite: first, 2.0g FeCl 3 ·6H 2 O, 2.0g FeSO 4 ·7H 2 O was dissolved in 150mL deionized water, and stirred in a 250mL flask at 25°C for 20min; then, under vigorous stirring at 40°C, 6.0g of sepiolite was added to the flask, and after 20min, ammonia water was added to the stirring solution to pH ~ 9.0, and stirred in a water bath at 60 °C for 4 hours, when the precipitate was cooled to room temperature, washed three times with deionized water and ethanol.
[0046] 2. Use KH550 to modify the surface of magnetic sepiolite: first, under magnetic stirring at 40°C, disperse 6.0 g of magnetic sepiolite in 100 g of deionized water, then add 1.0 g of KH550 into the mixture solution to obtain Uniform slurry. Then the pH of the solution was adjusted to about 5.0, stirred and heated at 80 °C for 4 hours; after the solution was cooled, the precipitate was washed with deionized water and ethanol several times.
[0047] 3. Preparation of magneticall...
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