Quaternary lithium iron phosphate glass and preparation method thereof
A quaternary lithium iron phosphate and lithium iron phosphate technology, applied in the field of functional glass materials, can solve the problems of cobalt environment and human body hazards, low material tap density, limited cobalt resources, etc., and achieves strong glass forming ability, wide composition, Effects that are easy to implement
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Embodiment 1
[0027] The molecular formula of quaternary lithium iron phosphate glass is: M-Li 2 O-Fe 2 o 3 -P 2 o 5 , where M is Na 2 O, Na 2 The mole percent of O is 2.4%, Li 2 The mole percentage of O is 17.6%, Fe 2 o 3 The mole percentage is 30%, P 2 o 5 The mole percentage of is 50%.
[0028] The preparation method is as follows:
[0029] (1) Lithium carbonate, ferric oxide, ammonium dihydrogen phosphate and sodium carbonate were weighed respectively to introduce Li 2 O, Fe 2 o 3 ,P 2 o 5 and Na 2 The raw materials of O, their ratio meets the molar ratio after being converted into the corresponding oxide;
[0030] (2) Put the mixed raw materials into a sintered quartz crucible and heat in a high-temperature furnace at 1200°C for 1 hour;
[0031] (3) Add the melted raw material solution into a mold to form it, then place it in a muffle furnace at 300-400°C for 1-2 hours, and cool naturally with the furnace to obtain a quaternary lithium iron phosphate bulk glass. In o...
Embodiment 2
[0035] The molecular formula of quaternary lithium iron phosphate glass is: Li 2 O-Fe 2 o 3 -Al 2 o 3 -P 2 o 5 , Li 2 The mole percentage of O is 30%, Fe 2 o 3 The mole percentage is 16.8%, Al 2 o 3 The mole percentage is 3.2%, P 2 o 5 The mole percentage of is 50%.
[0036] The preparation method is as follows:
[0037] (1) Lithium carbonate, ferric oxide, ammonium dihydrogen phosphate and aluminum oxide are respectively taken as raw materials, and their proportioning meets the molar ratio after being converted into corresponding oxides;
[0038] (2) Put the mixed raw materials into a sintered quartz crucible and heat in a high-temperature furnace at 1200°C for 1 hour;
[0039] (3) Pour the melted raw material solution directly into cold water to quench the glass particles, and after drying, grind
[0040] Grinding to obtain glass powder.
Embodiment 3
[0042] The molecular formula of quaternary lithium iron phosphate glass is: Li 2 O-Fe 2 o 3 -B 2 o 3 -P 2 o 5 , Li 2 The mole percentage of O is 30%, Fe 2 o 3 The mole percentage is 20%, B 2 o 3 The mole percentage is 12%, P 2 o 5 The mole percentage of is 38%.
[0043] The preparation method is as follows:
[0044] (1) Lithium carbonate, ferric oxide, ammonium dihydrogen phosphate and boric acid are taken as raw materials respectively, and their proportioning meets the molar ratio after being converted into corresponding oxides;
[0045] (2) Put the mixed raw materials into a sintered quartz crucible and heat in a high-temperature furnace at 1200°C for 1 hour;
[0046] (3) Add the melted raw material solution into a mold to form it, then place it in a muffle furnace at 300-400°C for 1-2 hours, and cool naturally with the furnace to obtain a quaternary lithium iron phosphate bulk glass. In order to prevent the mold from being too cold, the mold is heated before ...
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