Lithium ion battery electrode material synthesized by using full-solution process
A lithium-ion battery and electrode material technology, which is applied in the field of lithium-ion battery electrode materials synthesized by the full solution method, can solve the problems of unfavorable industrial production, high requirements for equipment and synthesis environment, complex process, etc., and achieve good consistency and easy parameters Simple effect of control and synthesis process
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Embodiment 1
[0015] Lithium hydroxide, iron nitrate, and phosphoric acid are weighed according to the molar ratio of lithium, iron, and phosphate radicals at a ratio of 0.95:1:1. The total mass of the three is 1 kg, and the three are dissolved in water respectively to make a mass ratio The concentration is 5%, 10%, 15% solution. Weigh 0.05 kg of sucrose, dissolve it in water, and prepare a solution whose mass ratio concentration is 25%. The solution prepared above was mixed for 1 hour to make a homogeneous liquid. A spray agent is used for spraying to prepare lithium iron phosphate nanoparticles. The lithium iron phosphate nanoscale precursor obtained by spraying was placed in N 2 In the atmosphere, it was calcined at 550° C. for 1 hour. Cool naturally to room temperature to obtain nanoscale lithium iron phosphate.
Embodiment 2
[0017] Lithium fluoride, iron nitrate, and ammonium dihydrogen phosphate are weighed according to the molar ratio of lithium, iron, and phosphate radicals at a ratio of 1:1:1. The total mass of the three is 1 kg. The mass ratio concentration is 10%, 15%, and 20% solution. Weigh 0.15 kg of fructose, and dissolve it in water to prepare a solution with a mass ratio concentration of 20%. The solution prepared above was mixed for 5 hours to make a homogeneous liquid. A spray agent is used for spraying to prepare lithium iron phosphate nanoparticles. The lithium ferrous phosphate nanoscale precursor obtained by spraying in H 2 In the atmosphere, it was calcined at 600° C. for 6 hours. Cool naturally to room temperature to obtain nanoscale lithium iron phosphate.
Embodiment 3
[0019] Lithium fluoride, ferric chloride, and diammonium hydrogen phosphate are weighed according to the molar ratio of lithium, iron, and phosphate radicals at a ratio of 1.05:1:1. The total mass of the three is 1 kg, and the three are dissolved in water respectively. Make the solution that mass ratio concentration is 15%, 20%, 25%. Weigh 0.25 kg of glucose, dissolve it in water, and prepare a solution with a mass ratio concentration of 15%. The solution prepared above was mixed for 12 hours to make a homogeneous liquid. A spray agent is used for spraying to prepare lithium iron phosphate nanoparticles. The lithium iron phosphate nanoscale precursor obtained by spraying was placed in N 2 In the atmosphere, it was calcined at 650° C. for 24 hours. Cool naturally to room temperature to obtain nanoscale lithium iron phosphate.
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