A kind of preparation method of large interlayer spacing tin disulfide nanoflower sodium ion battery anode material
A technology of sodium ion battery and negative electrode material, applied in the field of electrochemical energy storage, can solve problems such as capacity decrease and volume expansion, and achieve the effects of slowing down volume change, reducing tensile stress and enriching contact area
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0026] Dissolve 0.25 g L-cysteine in a mixed solution of 25 mL n-octylamine and 25 mL absolute ethanol, stir magnetically for 20 min, add 0.37 g tin tetrachloride pentahydrate, and stir until completely dissolved; mix The liquid was transferred to the lining of a 100 mL stainless steel reactor, placed in an oven, and reacted at 160 °C for 12 h; after the temperature of the lining of the reactor was naturally cooled to room temperature, deionized water and anhydrous ethanol were used to alternately wash the black color Precipitate 6 times, the speed is 5000 rpm, the time is 10 min, and then dried in a vacuum drying oven at 80 °C for 12 h to obtain a nano-flower-like sodium tin disulfide ion battery anode material with large interlayer spacing.
[0027] The samples were characterized by scanning electron microscopy figure 1 It can be seen that SnS 2 Has a uniform flower-like structure. and characterized by transmission electron microscopy. figure 2 The low magnification TE...
Embodiment 2
[0032]Dissolve 0.25 g of L-cysteine in a mixture of 40 mL of n-octylamine and 10 mL of absolute ethanol, stir magnetically for 20 min, add 0.35 g of tin tetrachloride pentahydrate, and stir until completely dissolved; The mixture was transferred to the lining of a 100 mL stainless steel reactor, placed in an oven, and reacted at 180 °C for 10 h; after the temperature of the lining of the reactor was naturally cooled to room temperature, deionized water and anhydrous ethanol were used alternately. The black precipitate was washed 5 times at a speed of 6000 rpm for 10 min, and then dried in a vacuum drying oven at 80 °C for 12 h to obtain a nano-flower-like sodium tin disulfide ion battery anode material with large interlayer spacing.
[0033] The battery was assembled according to the method of Example 1. Figure 7 It shows that the nanoflower-like SnS with super large interlayer spacing prepared in Example 2 2 The rate performance test of sodium-ion battery electrode materi...
Embodiment 3
[0035] Dissolve 0.25 g of L-cysteine in a mixture of 25 mL of n-octylamine and 25 mL of absolute ethanol, stir magnetically for 20 min, add 0.51 g of tin tetrachloride pentahydrate, and stir until completely dissolved; The mixture was transferred to the lining of a 100 mL stainless steel reactor, placed in an oven, and reacted at 180 °C for 12 h; after the temperature of the lining of the reactor was naturally cooled to room temperature, deionized water and anhydrous ethanol were used alternately The black precipitate was washed 6 times at a speed of 7000 rpm for 5 min, and then dried in a vacuum drying oven at 80 °C for 12 h to obtain a nano-flower-like sodium tin disulfide ion battery anode material with large interlayer spacing.
[0036] The battery was assembled according to the method of Example 1, and the electrochemical AC impedance test was carried out on the electrochemical workstation. Figure 8 It shows that the nanoflower-like SnS with super large interlayer spac...
PUM
| Property | Measurement | Unit |
|---|---|---|
| current efficiency | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More