LiMnyFe(1-y)PO4 micron material, preparation method thereof and application thereof
A technology of PO4 and synthesis method, which is applied in the field of doped materials, can solve problems such as instability and difficulty in obtaining material capacity, and achieve an effect that is conducive to insertion and extraction
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Embodiment 1
[0021] This embodiment provides a LiMn y Fe (1-y) PO 4 (y=0.2) the solvothermal synthesis method of micron material, comprises the following steps:
[0022] (1) Dissolve 2.5mmol LiI and 1.25mmol PVP in 30mL of benzyl alcohol solvent, stir to fully dissolve into transparent solution I;
[0023] (2) Then 0.05mmol MnCl 2 4H 2 O and 0.2 mmol FeCl 3 ·6H 2 O was dissolved in 30 mL of benzyl alcohol to form a colorless and transparent solution II;
[0024](3) Mix and stir the transparent solution I obtained in step (1) and the colorless transparent solution II obtained in step (2); then add 0.02mL of 85% H in the mixed solution 3 PO 4 , fully stirred for 20 minutes and transferred to an 80mL reaction kettle, reacted at 150°C for 48 hours, took it out to cool naturally, centrifuged with absolute ethanol and distilled water for 3 to 5 times, and dried in the air for 6 hours to obtain LiMn 0.2 Fe 0.8 PO 4 micron material.
Embodiment 2
[0026] This embodiment provides a LiMn y Fe (1-y) PO 4 (y=0.4) the solvothermal synthesis method of micron material, comprises the following steps:
[0027] (1) Dissolve 2.5mmol LiI and 1.25mmol PVP in 30mL of benzyl alcohol solvent, stir to fully dissolve into transparent solution I;
[0028] (2) Then add 0.1mmol MnCl 2 4H 2 O and 0.15 mmol FeCl 3 ·6H 2 O was dissolved in 30 mL of benzyl alcohol to form a colorless and transparent solution II;
[0029] (3) Mix and stir the transparent solution I obtained in step (1) and the colorless transparent solution II obtained in step (2); then add 0.02mL of 85% H in the mixed solution 3 PO 4 , fully stirred for 20 minutes and transferred to an 80mL reaction kettle, reacted at 150°C for 48 hours, took it out to cool naturally, centrifuged with absolute ethanol and distilled water for 3 to 5 times, and dried in the air for 6 hours to obtain LiMn 0.4 Fe 0.6 PO 4 micron material.
Embodiment 3
[0031] This embodiment provides a LiMn y Fe (1-y) PO 4 (y=0.6) the solvothermal synthesis method of micron material, comprises the following steps:
[0032] (1) Dissolve 2.5mmol LiI and 1.25mmol PVP in 30mL of benzyl alcohol solvent, stir to fully dissolve into transparent solution I;
[0033] (2) Then 0.15mmol MnCl 2 4H 2 O and 0.1 mmol FeCl 3 ·6H 2 O was dissolved in 30 mL of benzyl alcohol to form a colorless and transparent solution II;
[0034] (3) Mix and stir the transparent solution I obtained in step (1) and the colorless transparent solution II obtained in step (2); then add 0.02mL of 85% H in the mixed solution 3 PO 4 , fully stirred for 20 minutes and transferred to an 80mL reaction kettle, reacted at 150°C for 48 hours, took it out to cool naturally, centrifuged with absolute ethanol and distilled water for 3 to 5 times, and dried in the air for 6 hours to obtain LiMn 0.6 Fe 0.4 PO 4 micron material.
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