Tin dioxide-doped ST-base energy storage material and preparation method thereof
A technology of tin dioxide and energy storage materials, applied in electrical components, fixed capacitor dielectrics, circuits, etc., can solve the problem that the energy storage density has not been significantly improved, and achieve miniaturization, low material cost, and simple preparation process Effect
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[0030] A preparation method of tin dioxide-doped ST-based energy storage material, comprising the following steps:
[0031] Step 1: Preparation of pure phase SrTiO 3 、Na 0.5 Bi 0.5 TiO 3 and pure phase BaTiO 3 spare. Weigh SrCO according to the molar ratio of 1:1 3 and TiO 2 Mix to form mixture A; weigh Bi according to the molar ratio 1:1:4 2 o 3 , Na 2 CO 3 and TiO 2 Mix to form mixture B; weigh BaCO according to the molar ratio of 1:1 3 and TiO 2 Mix to form mixture C. SrCO 3 , Bi 2 o 3 , Na 2 CO 3 , BaCO 3 and TiO 2 The purity is above 99.0%. Step 2: Take mixture A, B, C powder and zirconium balls and deionized water respectively, according to the mass ratio of 1:2:(0.8~1), 1:2:(1.7~2), 1:(1.9 ~2.0): (1~1.2) After mixing, use a planetary ball mill for 22~24h, then dry at 85~90°C for 20~24h, after briquetting, put them in a box furnace and keep warm at 1120~1150°C respectively 3.5 to 4 hours, 840 to 880 ° C for 3 to 4 hours, 1150 to 1200 ° C for 3.5 to...
Embodiment 1
[0046] A novel SnO of the present invention 2 doped SrTiO 3 Based ceramic energy storage material, its formula is (1-x)(0.45SrTiO 3 -0.2Na 0.5Bi 0.5 TiO 3 -0.35BaTiO 3 )-xSnO 2 , where x=0.01.
[0047] Step 1: Preparation of pure phase SrTiO 3 、Na 0.5 Bi 0.5 TiO 3 and pure phase BaTiO 3 spare. Weigh SrCO according to the molar ratio of 1:1 3 and TiO 2 Mix to form mixture A; weigh Bi according to the molar ratio 1:1:4 2 o 3 , Na 2 CO 3 and TiO 2 Mix to form mixture B; weigh BaCO according to the molar ratio of 1:1 3 and TiO 2 Mix to form mixture C. SrCO 3 , Bi 2 o 3 , Na 2 CO 3 , BaCO 3 and TiO 2 The purity is above 99.0%.
[0048] Step 2: Take mixture A, B, and C powder and mix them with zircon balls and deionized water respectively, according to the mass ratio of 1:2:1, 1:2:2, 1:2.0:1.2, and then use a planetary ball mill After ball milling for 24 hours, drying at 90°C for 24 hours, and briquetting, place them in a box furnace for 4 hours at 1150...
Embodiment 2
[0054] A novel SnO of the present invention 2 doped SrTiO 3 Based ceramic energy storage material, its formula is 0.97 (0.45SrTiO 3 -0.2Na 0.5 Bi 0.5 TiO 3 -0.35BaTiO 3 )-0.03SnO 2 , where x=0.03.
[0055] Step 1: Preparation of pure phase SrTiO 3 、Na 0.5 Bi 0.5 TiO 3 and pure phase BaTiO 3 spare. Weigh SrCO according to the molar ratio of 1:1 3 and TiO 2 Mix to form mixture A; weigh Bi according to the molar ratio 1:1:4 2 o 3 , Na 2 CO 3 and TiO 2 Mix to form mixture B; weigh BaCO according to the molar ratio of 1:1 3 and TiO 2 Mix to form mixture C. SrCO 3 , Bi 2 o 3 , Na 2 CO 3 , BaCO 3 and TiO 2 The purity is above 99.0%.
[0056] Step 2: Take mixture A, B, and C powder and mix them with zirconium balls and deionized water respectively, according to the mass ratio of 1:2:0.9, 1:2:1, 1:2:1.1, and then use a planetary ball mill After ball milling for 23 hours, drying at 88°C for 23 hours, and briquetting, they were placed in a box furnace for 4 ...
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