Polymer electrolyte matrix and membrane for sodium ion battery, preparation method and application thereof
A sodium ion battery and polymer technology, applied in secondary batteries, circuits, electrical components, etc., can solve the problems of insufficient mechanical properties, large electrode/electrolyte interface impedance, low ion conductivity, etc., and achieve high discharge specific capacity, The effects of good cycle stability and rate performance, high thermal stability and electrochemical stability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0080] Preparation of solid polymer electrolyte
[0081] (1) Synthetic macroinitiator 21Br-CD: in N 2 Add 11.4 g of β-CD to the Schlenk bottle under protection, add 100 ml of N-methylpyrrolidone to dissolve and stir in an ice bath for half an hour, add 58 ml of 2-bromo-isobutyryl bromide dropwise, drop After the addition was completed, the mixture was stirred in an ice bath for 1 hour, and then naturally warmed to room temperature for 24 hours. The reactant was concentrated in vacuo overnight, then diluted with 10 ml of dichloromethane, then washed four times with saturated sodium bicarbonate solution and deionized water, and the organic phase obtained was dried over anhydrous sodium sulfate and distilled under reduced pressure. A colloidal crude product was obtained. Finally, the crude product was precipitated and purified in n-hexane, and dried under vacuum at room temperature to obtain the final product (25.7 g) as a pale yellow powder.
[0082] (2) Synthetic CD-(PMMA m ...
Embodiment 2
[0087] Preparation of solid polymer electrolyte
[0088] (1) Synthetic macroinitiator 21Br-CD: in N 2 Add 11.4 g of β-CD to the Schlenk bottle under protection, add 100 ml of N-methylpyrrolidone to dissolve and stir in an ice bath for half an hour, add 58 ml of 2-bromo-isobutyryl bromide dropwise, drop After the addition was completed, the mixture was stirred in an ice bath for 1 hour, and then naturally warmed to room temperature for 24 hours. The reactant was concentrated in vacuo overnight, then diluted with 10 ml of dichloromethane, then washed four times with saturated sodium bicarbonate solution and deionized water, and the organic phase obtained was dried over anhydrous sodium sulfate and distilled under reduced pressure. A colloidal crude product was obtained. Finally, the crude product was precipitated and purified in n-hexane, and dried under vacuum at room temperature to obtain the final product (25.7 g) as a pale yellow powder.
[0089] (2) Synthetic CD-(PMMA m ...
Embodiment 3
[0093] Preparation of solid polymer electrolyte
[0094] (1) Synthetic macroinitiator 21Br-CD: in N 2 Add 11.4 g of β-CD to the Schlenk bottle under protection, add 100 ml of N-methylpyrrolidone to dissolve and stir in an ice bath for half an hour, add 58 ml of 2-bromo-isobutyryl bromide dropwise, drop After the addition was completed, the mixture was stirred in an ice bath for 1 hour, and then naturally warmed to room temperature for 24 hours. The reactant was concentrated in vacuo overnight, then diluted with 10 ml of dichloromethane, then washed four times with saturated sodium bicarbonate solution and deionized water, and the organic phase obtained was dried over anhydrous sodium sulfate and distilled under reduced pressure. A colloidal crude product was obtained. Finally, the crude product was precipitated and purified in n-hexane, and dried under vacuum at room temperature to obtain the final product (25.7 g) as a pale yellow powder.
[0095] (2) Synthetic CD-(PMMA m ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| molecular weight distribution | aaaaa | aaaaa |
| electrical conductivity | aaaaa | aaaaa |
| electrical conductivity | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More