Polyion liquid/active ceramic composite electrolyte and preparation method thereof
A technology of polyionic liquid and composite electrolyte, which is applied in the field of polyionic liquid composite electrolyte and its preparation, can solve the problems of poor mechanical properties, insufficient ion conduction efficiency, difficulty in high-voltage integration, thin film, etc., and achieves a simple preparation method, Effect of improving ion conduction efficiency
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Embodiment 1
[0034] The preparation method of polyionic liquid / active ceramic composite electrolyte, the steps are as follows:
[0035] (1) Dissolve 0.25g of plasticizer (1-ethyl-3-methyl-imidazole bistrifluoromethanesulfonimide salt) and 0.25g of lithium salt (LiTFSI) in 2.11mL of solvent ethanol, at room temperature Down stirring 6h, obtain lithium salt mixture;
[0036] (2) Add 0.5 g of polyionic liquid (a copolymer having an imidazolium ionic liquid and acrylate unit structure) to the lithium salt mixture obtained in step (1), and stir at room temperature for 6 hours to obtain a polyionic liquid mixture;
[0037] (3) Grind 1 g of lithium lanthanum zirconium oxide (LLZO) with a mortar for 20 minutes, then add the polyionic liquid mixture prepared in step (2) into lithium lanthanum zirconium oxide (LLZO) and mix and grind for 15 minutes to obtain lithium lanthanum zirconium oxide Oxygen (LLZO) quality accounts for the slurry that total solid content is 50%;
[0038] (4) Apply the slurr...
Embodiment 2
[0040] The preparation method of polyionic liquid / active ceramic composite electrolyte, the steps are as follows:
[0041](1) Dissolve 0.25g of plasticizer (1-ethyl-3-methyl-imidazole bistrifluoromethanesulfonimide salt) and 0.25g of lithium salt (LiTFSI) in 2.11mL of solvent ethanol, at room temperature Down stirring 12h, obtain lithium salt mixture;
[0042] (2) Add 0.5g polyionic liquid (a copolymer having an imidazolium ionic liquid and acrylate unit structure) to the lithium salt mixture obtained in step (1), and stir at room temperature for 12h to obtain a polyionic liquid mixture;
[0043] (3) Grind 1.5 g of lithium lanthanum zirconium oxide (LLZO) with a mortar for 20 minutes, then add the polyionic liquid mixture prepared in step (2) into lithium lanthanum zirconium oxide (LLZO) and mix and grind for 15 minutes to obtain lithium lanthanum Zirconium oxide (LLZO) mass accounts for the slurry whose total solid content is 60%;
[0044] (4) Apply the slurry formed in ste...
Embodiment 3
[0046] The preparation method of polyionic liquid / active ceramic composite electrolyte, the steps are as follows:
[0047] (1) Dissolve 0.25g of plasticizer (1-ethyl-3-methyl-imidazole bistrifluoromethanesulfonimide salt) and 0.25g of lithium salt (LiTFSI) in 2.11mL of solvent ethanol, at room temperature Down stirring 8h, obtain lithium salt mixture;
[0048] (2) Add 0.5 g of polyionic liquid (a copolymer having an imidazolium ionic liquid and acrylate unit structure) to the lithium salt mixture obtained in step (1), and stir at room temperature for 8 hours to obtain a polyionic liquid mixture;
[0049] (3) Grind 2.33g of lithium lanthanum zirconium oxide (LLZO) with a mortar for 20 minutes, then add the polyionic liquid mixture prepared in step (2) to lithium lanthanum zirconium oxide (LLZO) and mix and grind for 15 minutes to obtain lithium lanthanum Zirconium oxide (LLZO) mass accounts for the slurry whose total solid content is 70%;
[0050] (4) Apply the slurry formed ...
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