A kind of sei membrane, preparation method and alkali metal battery
An electrolyte and particle technology, applied in the field of alkali metal batteries, can solve the problem of low coulombic efficiency of lithium dendrites
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0035] (1) Add 2 ml of vinylmethoxysilane to 150 ml of distilled water and stir until the droplet of vinylmethoxysilane disappears completely. Then 10 ml of ammonium hydroxide solution with a mass fraction of 28 wt% was added and reacted at room temperature for 12 hours. After the reaction was completed, the precipitate produced was centrifuged and washed with ethanol to obtain the precipitate;
[0036] (2) Dissolve 1.5 g of the precipitate, 4.0 g of sodium 4-vinylbenzenesulfonate and 0.4 g of azobisisobutyronitrile in 140 ml of N-methylpyrrolidone, and react at 60 °C for 48 hours. After the reaction was completed, the solution was precipitated in excess ether, the precipitate was filtered and washed with ethanol three times, and dried to obtain the core-shell structure SiO 2 (Na + ) particles.
[0037] (3) In a ball mill jar filled with argon, the core-shell SiO 2 (Na + ) particles and N-methyl, butylpyrrolidine bistrifluoromethanesulfonimide salt were ball milled in a b...
Embodiment 2
[0042] (1) Add 2 ml of vinylmethoxysilane to 150ml of distilled water and stir until the droplet of vinylmethoxysilane disappears completely. Then add 10ml of ammonium hydroxide solution with a mass fraction of 28 wt%, and react at room temperature for 12 hours. After the reaction was completed, the precipitate produced was centrifuged and washed with ethanol to obtain the precipitate;
[0043] (2) Dissolve 1.5 g of the precipitate, 6.0 g of sodium 4-vinylbenzenesulfonate and 0.4 g of azobisisobutyronitrile in 140 ml of N-methylpyrrolidone, and react at 60 °C for 72 hours. After the reaction was completed, the solution was precipitated in excess ether, the precipitate was filtered and washed with ethanol three times, and dried to obtain the core-shell structure SiO 2 (Na + ) particles.
[0044] (3) In a ball mill jar filled with argon, the core-shell SiO 2 (Na + ) particles and N-methyl, butylpyrrolidine bistrifluoromethanesulfonimide salt were ball milled in a ball mill ...
Embodiment 3
[0049] (1) Add 2 ml of vinylmethoxysilane to 150 ml of distilled water and stir until the droplet of vinylmethoxysilane disappears completely. Then 10 ml of ammonium hydroxide solution with a mass fraction of 28 wt% was added and reacted at room temperature for 12 hours. After the reaction was completed, the precipitate produced was centrifuged and washed with ethanol to obtain the precipitate;
[0050] (2) Dissolve 1.5 g of the precipitate, 6.0 g of sodium 4-vinylbenzenesulfonate and 0.4 g of azobisisobutyronitrile in 140 ml of N-methylpyrrolidone, and react at 60 °C for 24 hours. After the reaction was completed, the solution was precipitated in excess ether, the precipitate was filtered and washed 3 times with methanol, and dried to obtain the core-shell structure SiO 2 (Na+ ) particles;
[0051] (3) SiO obtained by the above steps 2 (Na + ) particles were put into excess LiOH•H2O for cation exchange, filtered and dried to obtain core-shell structure SiO 2 (Li + ) par...
PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More