Lithium vanadium phosphate cathode material with low-temperature electrochemical properties
A lithium vanadium phosphate and cathode material technology, applied in battery electrodes, circuits, electrical components, etc., can solve problems such as poor cycle performance, poor low-temperature electrochemical performance, low electronic conductivity of lithium vanadium phosphate, etc., and achieve particle size distribution The effect of narrow range, lower battery internal resistance, and high conductivity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0042] Dissolve 6.22g of citric acid in 30mL of deionized water, pour it into a beaker containing 2.70g of vanadium pentoxide, and stir on a magnetic heating stirrer at a constant temperature of 50°C for 60 minutes to form a dark blue solution. Dissolve 5.13g of ammonium dihydrogen phosphate and 1.68g of lithium carbonate in 30mL of deionized water respectively, add them to the above dark blue solution, and stir on a magnetic heating stirrer at a constant temperature of 50°C for 1 hour. The pH value was adjusted to 4 with acetic acid, and the mixed liquid was stirred at a constant temperature of 50° C. for 1 hour on a magnetic heating stirrer. Raise the temperature to 80°C, continue stirring to evaporate the solvent to form a dark blue wet gel, and put it in an oven at 85°C for 1 day to form a dry gel. The xerogel was ground in a mortar for 30 minutes to form a blue-green powder. Then keep the blue-green powder at 350°C for 4 hours under a hydrogen-nitrogen mixture containing...
Embodiment 2
[0047] Dissolve 6.22g of citric acid in 30mL of deionized water, pour it into a beaker containing 2.70g of vanadium pentoxide, and stir on a magnetic heating stirrer at a constant temperature of 50°C for 60 minutes to form a dark blue solution. Dissolve 5.13g of ammonium dihydrogen phosphate and 1.68g of lithium carbonate in 30mL of deionized water respectively, add them to the above dark blue solution, and stir on a magnetic heating stirrer at a constant temperature of 50°C for 1 hour. The pH value was adjusted to 4 with acetic acid, and the mixed liquid was stirred at a constant temperature of 50° C. for 1 hour on a magnetic heating stirrer. Raise the temperature to 80°C, continue stirring to evaporate the solvent to form a dark blue wet gel, and put it in an oven at 85°C for 1 day to form a dry gel. The xerogel was ground in a mortar for 30 minutes to form a blue-green powder. Then keep the blue-green powder at 350°C for 4 hours under a hydrogen-nitrogen mixture containing...
Embodiment 3
[0052] Dissolve 6.22g of citric acid in 30mL of deionized water, pour it into a beaker containing 2.70g of vanadium pentoxide, and stir on a magnetic heating stirrer at a constant temperature of 50°C for 60 minutes to form a dark blue solution. Dissolve 5.13g of ammonium dihydrogen phosphate and 1.68g of lithium carbonate in 30mL of deionized water respectively, add them to the above dark blue solution, and stir on a magnetic heating stirrer at a constant temperature of 50°C for 1 hour. The pH value was adjusted to 4 with acetic acid, and the mixed liquid was stirred at a constant temperature of 50° C. for 1 hour on a magnetic heating stirrer. Raise the temperature to 80°C, continue stirring to evaporate the solvent to form a dark blue wet gel, and put it in an oven at 85°C for 1 day to form a dry gel. The xerogel was ground in a mortar for 30 minutes to form a blue-green powder. Then keep the blue-green powder at 350°C for 4 hours under a hydrogen-nitrogen mixture containing...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More