Preparation method of meso-porous spherical lithium iron phosphate/carbon in-situ composite material
A technology of lithium iron phosphate and composite materials, applied in electrical components, battery electrodes, circuits, etc., can solve the problems of low conductivity and low conductivity of lithium iron phosphate
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0031] Dissolve baker's yeast in deionized water, incubate at 42°C for 25 minutes, filter and purify to obtain a microbial solution, and control the concentration of yeast cells in the solution to 4.5x10 7 unit / ml, recorded as A solution. Add ammonium dihydrogen phosphate to solution A so that the concentration in solution A is 0.5 mol / L, stir for 1 hour, and record it as solution B. Under stirring conditions, press LiFePO 4 The stoichiometric ratio is that the ferric nitrate solution with a concentration of 0.8mol / L is added to the B solution, and the citric acid solution with a concentration of 1.6mol / L is added to the B solution according to the 1:2 molar ratio of ferric nitrate and citric acid, and Thoroughly stirred at 70°C for 0.5h, and recorded as solution C. by LiFePO 4 For stoichiometric ratio, add 0.8 mol / L lithium nitrate solution to solution C, adjust the pH of the mixed solution to 6 with 10 mol / L ammonia water, stir thoroughly for 2 hours, and age in a water b...
Embodiment 2
[0033] Dissolve baker's yeast in deionized water, incubate at 42°C for 30 minutes, filter and purify to obtain a microbial solution, and control the concentration of yeast cells in the solution to 5x10 7 unit / ml, recorded as A solution. Add ammonium dihydrogen phosphate to solution A so that the concentration in solution A is 0.5 mol / L, stir for 1 hour, and record it as solution B. Under stirring conditions, press LiFePO 4 Stoichiometric ratio and 1:2 molar ratio of ferric nitrate and citric acid, ferric nitrate solution with a concentration of 1.0 mol / L and citric acid solution with a concentration of 2.0 mol / L were added to solution B respectively, and carried out at 60°C Fully stirred for 0.7h, recorded as C solution. by LiFePO 4 For stoichiometric ratio, add 0.8 mol / L lithium acetate solution to solution C, adjust the pH of the mixed solution to 6 with 10 mol / L ammonia water, stir thoroughly for 3 hours, and age in a water bath at 60°C for 24 hours to form a gel. The g...
Embodiment 3
[0035] Dissolve brewer's yeast in deionized water, incubate at 42°C for 20 minutes, filter and purify to obtain a microbial solution, and control the concentration of yeast cells in the solution to 4x10 7 unit / ml, recorded as A solution. Add ammonium dihydrogen phosphate to solution A so that the concentration in solution A is 0.5 mol / L, stir for 1 hour, and record it as solution B. Under stirring conditions, press LiFePO 4 Stoichiometric ratio and 1:2 molar ratio of ferric nitrate and citric acid, ferric nitrate solution with a concentration of 0.5 mol / L and citric acid solution with a concentration of 1.0 mol / L were added to solution B respectively, and carried out at 50°C Fully stirred for 1h, recorded as C solution. by LiFePO 4 For the stoichiometric ratio, add 0.8 mol / L lithium hydroxide solution to solution C, adjust the pH of the mixed solution to 6 with 10 mol / L ammonia water, stir thoroughly for 1 hour, and age in a water bath at 90°C for 16 hours to form a gel. T...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More