Hydrothermal synthesis method of sodium ferromanganate used as electrode material of aqueous cation battery and preparation method of aqueous battery
A battery electrode, sodium iron manganate technology, applied in the field of hydrothermal synthesis, can solve problems such as poor safety, high cost, toxicity, etc., and achieve the effects of low cost, low impedance and wide sources
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Embodiment 1
[0026] (1) FeSO 4 , MnSO 4 According to the stoichiometric ratio of iron and manganese, 0.5mol / L solutions are prepared and mixed dropwise, and NH is added at the same time 4 HCO 3 And ethanol as a dispersant, vigorously stirred for 1h;
[0027] (2) Transfer the above mixed solution to a polytetrafluoroethylene-lined stainless steel reactor for hydrothermal reaction. The hydrothermal condition is 180°C for 12 hours, and the obtained precipitate is filtered, cleaned and dried;
[0028] (3) After drying the product and stoichiometric ratio of Na 2 CO3 Perform ball milling and mixing for 5 hours;
[0029] (4) Put the ball-milled mixture into a muffle furnace for pretreatment at 400°C for 6h and high-temperature calcination at 880°C for 24h to obtain the final product NFMO.
[0030] It can be seen from the XRD pattern that the characteristic peaks are sharp and there are no obvious impurity peaks, indicating that the crystallinity of the product is intact and the purity is hi...
Embodiment 2
[0032] Change the hydrothermal condition of Example 1(2) to 150° C. for 12 hours. The rest of the synthesis conditions remain unchanged.
Embodiment 3
[0034] Example 1 (4) was changed to put the ball-milled mixture into a muffle furnace for pretreatment at 400°C for 6h and high-temperature calcination at 800°C for 24h to obtain the final product NFMO. The rest of the synthesis conditions remain unchanged.
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