Preparation method of Sn/carbon fabric composite material used as sodium ion battery negative electrode
A sodium-ion battery and composite material technology, which is applied in the field of preparation of Sn/carbon cloth composite material as the negative electrode of sodium-ion battery, can solve the problems of reducing battery cycle performance, affecting the practical application of materials, and material powdering and falling off. Large, short cycle, and the effect of improving conductivity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0025] 1) Ultrasonic cleaning of 3×3 cm hydrophilic carbon cloth in ethanol and deionized water for 4 h twice, and then immersing the carbon in 0.8 mol / L nitric acid solution for 0.5 h to etch the surface of the carbon cloth , to reduce the number of surface active carbon atoms and increase surface active functional groups;
[0026] 2) Add 0.85g of SnCl 2 2H 2 O was dissolved in 20mL of deionized water and 20ml of glycerol mixed solvent and stirred evenly to obtain solution A1, 5ml of hydrazine hydrate was added to solution A1, and then 100W ultrasonic treatment was used for 5min to obtain solution A2;
[0027] 3) Transfer the solution A2 and the pretreated carbon cloth to a polytetrafluoroethylene hydrothermal kettle, control the filling degree to be 40%, and then place the polytetrafluoroethylene hydrothermal kettle in a homogeneous reactor ( Yantai Keli Chemical Equipment Co., Ltd., KLJX-8A) hydrothermally reacted at 165°C for 24 hours, cooled naturally to room temperatur...
Embodiment 2
[0030] 1) Ultrasonic cleaning of 3×3 cm hydrophilic carbon cloth in ethanol and deionized water for 5 h twice, and then immersing the carbon cloth in 0.5 mol / L nitric acid solution for 2 h, etching the surface of the carbon cloth, Reduce the number of surface active carbon atoms and increase surface active functional groups;
[0031] 2) 0.63g of SnCl 2 2H 2 O was dissolved in 50mL of deionized water and 10ml of glycerol mixed solvent and stirred evenly to obtain solution A1, 10ml of hydrazine hydrate was added to solution A1, and then 100W ultrasonic treatment was used for 5min to obtain solution A2;
[0032] 3) Transfer the solution A2 and the pretreated carbon cloth to a polytetrafluoroethylene hydrothermal kettle, control the filling degree to be 60%, and then place the polytetrafluoroethylene hydrothermal kettle in a homogeneous reactor ( Yantai Keli Chemical Equipment Co., Ltd., KLJX-8A) hydrothermally reacted at 180°C for 24 hours, cooled naturally to room temperature ...
Embodiment 3
[0038] 1) Ultrasonic cleaning of 3×3 cm hydrophilic carbon cloth in ethanol and deionized water for 6 h twice, and then immersing the carbon cloth in 0.6 mol / L nitric acid solution for 2 h to etch the surface of the carbon cloth, Reduce the number of surface active carbon atoms and increase surface active functional groups;
[0039] 2) 1.52g of SnCl 2 2H 2 O was dissolved in 20mL of deionized water and 25ml of glycerol mixed solvent and stirred evenly to obtain solution A1, 20ml of hydrazine hydrate was added to solution A1, and then 100W ultrasonic treatment was used for 20min to obtain solution A2;
[0040] 3) Transfer the solution A2 and the pretreated carbon cloth to a polytetrafluoroethylene hydrothermal kettle, control the filling degree to be 60%, and then place the polytetrafluoroethylene hydrothermal kettle in a homogeneous reactor ( Yantai Keli Chemical Equipment Co., Ltd., KLJX-8A) hydrothermally reacted at 185°C for 10 hours, cooled naturally to room temperature ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More