Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Sandwich laminated ceramic material and preparation method thereof
The invention relates to the technical field of energy storage ceramic capacitors, in particular to a sandwich laminated ceramic material and a preparation method thereof, the chemical components of an upper layer ceramic material and a lower layer ceramic material are 0.78 Bi0. 5Na0. 5TiO3-0. 22 NaNbO3 and Sm2O3 according to the molar ratio of 1: x, x = 0-0.03, and the chemical component of a middle sandwich layer ceramic material is BaTi0. 9Zr0. 1O3. The invention further discloses a preparation method of the sandwich laminated ceramic material. The middle sandwich layer is made of the barium zirconate titanate BaTi0. 9Zr0. 1O3 ceramic material with the high dielectric constant, the electric field intensity is improved, the upper layer and the lower layer are made of the BNT-based ceramic material with the relaxor ferroelectric phase characteristic, the characteristics of high saturation polarization value and low residual polarization value are achieved, and the temperature stability is good; therefore, the sandwich laminated ceramic material disclosed by the invention integrates excellent characteristics of various different materials, so that the energy storage density and the energy storage efficiency are greatly improved; the sandwich laminated ceramic material is high in breakdown field strength, the energy storage performance is greatly improved, the maximum energy storage density reaches 5.51 J/cm < 3 > or above, and the energy storage efficiency reaches 82% or above.
本发明涉及储能陶瓷电容技术领域，具体为一种夹心叠层陶瓷材料及其制备方法，上层和下层陶瓷材料的化学组分为0.78Bi0.5Na0.5TiO3‑0.22NaNbO3和Sm2O3按摩尔比1：x组成，其中x＝0‑0.03，中间夹心层陶瓷材料的化学组分为BaTi0.9Zr0.1O3。本发明中间夹心层选择高介电常数的锆钛酸钡BaTi0.9Zr0.1O3陶瓷材料，提高了电场强度，上下层选择具有弛豫铁电相特征的BNT基陶瓷材料，具有饱和极化值高，剩余极化值低的特征，且温度稳定性好；因此，本发明中的夹心叠层陶瓷材料兼具多种不同材料优异特性于一体，使得储能密度、储能效率均大幅提升；本发明中的夹心叠层陶瓷材料击穿场强高，大幅提升了储能性能，储能密度最高达5.51J/cm3以上，储能效率达82％以上。
Sandwich laminated ceramic material and preparation method thereof
The invention relates to the technical field of energy storage ceramic capacitors, in particular to a sandwich laminated ceramic material and a preparation method thereof, the chemical components of an upper layer ceramic material and a lower layer ceramic material are 0.78 Bi0. 5Na0. 5TiO3-0. 22 NaNbO3 and Sm2O3 according to the molar ratio of 1: x, x = 0-0.03, and the chemical component of a middle sandwich layer ceramic material is BaTi0. 9Zr0. 1O3. The invention further discloses a preparation method of the sandwich laminated ceramic material. The middle sandwich layer is made of the barium zirconate titanate BaTi0. 9Zr0. 1O3 ceramic material with the high dielectric constant, the electric field intensity is improved, the upper layer and the lower layer are made of the BNT-based ceramic material with the relaxor ferroelectric phase characteristic, the characteristics of high saturation polarization value and low residual polarization value are achieved, and the temperature stability is good; therefore, the sandwich laminated ceramic material disclosed by the invention integrates excellent characteristics of various different materials, so that the energy storage density and the energy storage efficiency are greatly improved; the sandwich laminated ceramic material is high in breakdown field strength, the energy storage performance is greatly improved, the maximum energy storage density reaches 5.51 J/cm < 3 > or above, and the energy storage efficiency reaches 82% or above.
本发明涉及储能陶瓷电容技术领域，具体为一种夹心叠层陶瓷材料及其制备方法，上层和下层陶瓷材料的化学组分为0.78Bi0.5Na0.5TiO3‑0.22NaNbO3和Sm2O3按摩尔比1：x组成，其中x＝0‑0.03，中间夹心层陶瓷材料的化学组分为BaTi0.9Zr0.1O3。本发明中间夹心层选择高介电常数的锆钛酸钡BaTi0.9Zr0.1O3陶瓷材料，提高了电场强度，上下层选择具有弛豫铁电相特征的BNT基陶瓷材料，具有饱和极化值高，剩余极化值低的特征，且温度稳定性好；因此，本发明中的夹心叠层陶瓷材料兼具多种不同材料优异特性于一体，使得储能密度、储能效率均大幅提升；本发明中的夹心叠层陶瓷材料击穿场强高，大幅提升了储能性能，储能密度最高达5.51J/cm3以上，储能效率达82％以上。
Sandwich laminated ceramic material and preparation method thereof
一种夹心叠层陶瓷材料及其制备方法
ZHAO NIANSHUN (Autor:in) / LI ZHENG (Autor:in) / CAO JIANHUA (Autor:in) / HUANG FENG (Autor:in) / LI CHENG (Autor:in) / SUN TAIMING (Autor:in) / GUO DONGXU (Autor:in) / ZHOU YUNYAN (Autor:in) / JIANG CHANGLONG (Autor:in) / SHI YUNGUI (Autor:in)
10.06.2022
Patent
Elektronische Ressource
Chinesisch
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