A kind of single-ion nanocomposite solid-state electrolyte and preparation method thereof
A solid electrolyte and nano-composite technology, applied in the direction of electrolyte immobilization/gelation, circuits, electrical components, etc., can solve the problem of low ionic conductivity, achieve good ionic conductivity, solve side reactions, and facilitate large-scale The effect of production
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Embodiment 1
[0037] A single-ion nanocomposite solid electrolyte is prepared according to the following steps.
[0038] In step (1), prepare a single-ion-based polymer. Under a nitrogen protective atmosphere, add 5.9375g of PEGMEM, 0.5155g of SSS and 0.09855g of AIBN into a three-necked flask containing 10mL of DMF, and then heat the mixture in a 70°C water bath Reacted in medium for 8h, and stirred by magneton, after the simple free radical polymerization reaction was completed, a viscous mixture PEGMEM-co-SSS was obtained.
[0039] In step (2), the mixed product obtained in step (1) is cooled to room temperature.
[0040] In the (3) step, 1.0g of ZnNO 3 ·6H 2 O and 1.10 g of 1,2-dimethylimidazole were dissolved in 20 mL of DMF, respectively.
[0041] In step (4), dissolve the ZnNO 3 ·6H 2O and 1,2-dimethylimidazole were sequentially added to the mixture obtained in step (2), and stirred in situ at 30°C for 24 hours to prepare white emulsion PEGMEM-co-SSS@ZIF-8, PEGMEM-co-SSS and Th...
Embodiment 2
[0044] A single-ion nanocomposite solid electrolyte is prepared according to the following steps.
[0045] In step (1), prepare a single-ion-based polymer. Under a nitrogen protective atmosphere, add 5.9375g of PEGMEM, 0.5155g of SSS and 0.09855g of AIBN into a three-necked flask containing 10mL of DMF, and then heat the mixture in a 70°C water bath Reacted in medium for 8h with magnetic stirring, and the viscous mixture PEGMEM-co-SSS was obtained after the simple free radical polymerization reaction was completed.
[0046] In step (2), the mixed product obtained in step (1) is cooled to room temperature.
[0047] In the (3) step, the ZnNO of 1.487g 3 ·6H 2 O and 1.642 g of 1,2-dimethylimidazole were dissolved in 40 mL of DMF, respectively.
[0048] In step (4), dissolve the ZnNO 3 ·6H 2 O and 1,2-dimethylimidazole were sequentially added to the mixed product obtained in step (2), and stirred in situ at 30°C for 24 hours to prepare a white emulsion PEGMEM-co-SSS@ZIF-8, PE...
Embodiment 3
[0051] A single-ion nanocomposite solid electrolyte is prepared according to the following steps.
[0052] In step (1), prepare a single-ion-based polymer. Under a nitrogen protective atmosphere, add 5.9375g of PEGMEM, 0.5155g of SSS and 0.09855g of AIBN into a three-necked flask containing 10mL of DMF, and then heat the mixture in a 70°C water bath Reacted in medium for 8h with magnetic stirring, and the viscous mixture PEGMEM-co-SSS was obtained after the simple free radical polymerization reaction was completed.
[0053] In the (2) step, the mixed product obtained in the (1) step is cooled to room temperature.
[0054] In the (3) step, the ZnNO of 2.964g 3 ·6H 2 O and 3.284 g of 1,2-dimethylimidazole were dissolved in 40 mL of DMF, respectively.
[0055] In step (4), dissolve the ZnNO 3 ·6H 2 O and 1,2-dimethylimidazole were sequentially added to the mixed product obtained in step (2), and stirred in situ at 30°C for 24 hours to prepare a white emulsion PEGMEM-co-SSS@Z...
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