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Lead-free ceramic material with high energy storage density and charge-discharge performance and preparation method thereof
The invention relates to a lead-free ceramic material with high energy storage density and charge-discharge performance and a preparation method thereof, the chemical formula of the ceramic material is (1-x) (Bi0. 5Na0. 5) TiO3-x (Sr0. 7La0. 2) (Ti0. 9Zr0. 1) O3, and x is more than or equal to 0.10 and less than or equal to 0.50. The preparation method comprises the following steps: carrying out ball milling on SrCO3, Na2CO3, TiO2, ZrO2, La2O3 and Bi2O3 according to a chemical formula, drying, sieving, and pre-sintering fine powder at 800-900 DEG C to obtain ceramic powder; ceramic powder is sequentially subjected to ball milling, drying and sieving, the obtained powder is firstly subjected to pre-pressing forming and then subjected to cold isostatic pressing, and a ceramic green body is obtained; burying the ceramic green body by using ceramic powder, then heating to 1150-1240 DEG C in a closed environment, preserving heat for 3-5 hours, and finally cooling to 600-800 DEG C to obtain the lead-free ceramic material with high energy storage density and charge-discharge performance.
本发明一种无铅高储能密度和充放电性能的陶瓷材料及制备方法，陶瓷材料的化学式为：(1‑x)(Bi0.5Na0.5)TiO3‑x(Sr0.7La0.2)(Ti0.9Zr0.1)O3，其中0.10≤x≤0.50。制备时根据化学式将SrCO3、Na2CO3、TiO2、ZrO2、La2O3和Bi2O3球磨，再干燥后过筛，将细粉在800～900℃下预烧，得到陶瓷粉体；将陶瓷粉体依次球磨、干燥和过筛，将得到的粉体先预压成型，再冷等静压，得到陶瓷生坯；用陶瓷粉体将陶瓷生坯掩埋，之后在封闭环境下升温至1150～1240℃，保温3～5h，最后降温至600～800℃，得到无铅高储能密度和充放电性能的陶瓷材料。
Lead-free ceramic material with high energy storage density and charge-discharge performance and preparation method thereof
The invention relates to a lead-free ceramic material with high energy storage density and charge-discharge performance and a preparation method thereof, the chemical formula of the ceramic material is (1-x) (Bi0. 5Na0. 5) TiO3-x (Sr0. 7La0. 2) (Ti0. 9Zr0. 1) O3, and x is more than or equal to 0.10 and less than or equal to 0.50. The preparation method comprises the following steps: carrying out ball milling on SrCO3, Na2CO3, TiO2, ZrO2, La2O3 and Bi2O3 according to a chemical formula, drying, sieving, and pre-sintering fine powder at 800-900 DEG C to obtain ceramic powder; ceramic powder is sequentially subjected to ball milling, drying and sieving, the obtained powder is firstly subjected to pre-pressing forming and then subjected to cold isostatic pressing, and a ceramic green body is obtained; burying the ceramic green body by using ceramic powder, then heating to 1150-1240 DEG C in a closed environment, preserving heat for 3-5 hours, and finally cooling to 600-800 DEG C to obtain the lead-free ceramic material with high energy storage density and charge-discharge performance.
本发明一种无铅高储能密度和充放电性能的陶瓷材料及制备方法，陶瓷材料的化学式为：(1‑x)(Bi0.5Na0.5)TiO3‑x(Sr0.7La0.2)(Ti0.9Zr0.1)O3，其中0.10≤x≤0.50。制备时根据化学式将SrCO3、Na2CO3、TiO2、ZrO2、La2O3和Bi2O3球磨，再干燥后过筛，将细粉在800～900℃下预烧，得到陶瓷粉体；将陶瓷粉体依次球磨、干燥和过筛，将得到的粉体先预压成型，再冷等静压，得到陶瓷生坯；用陶瓷粉体将陶瓷生坯掩埋，之后在封闭环境下升温至1150～1240℃，保温3～5h，最后降温至600～800℃，得到无铅高储能密度和充放电性能的陶瓷材料。
Lead-free ceramic material with high energy storage density and charge-discharge performance and preparation method thereof
一种无铅高储能密度和充放电性能的陶瓷材料及制备方法
YUAN QIBIN (author) / DUAN MENGYUN (author) / ZHAN SHILI (author)
2023-08-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
High-energy-storage-density lead-free ceramic capacitor material and preparation method thereof
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