A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
BCZT-based energy storage ceramic material with high breakdown field strength and preparation method thereof
The invention discloses a BCZT-based energy storage ceramic material with high breakdown field strength and a preparation method of the BCZT-based energy storage ceramic material, the composition general formula of the BCZT-based energy storage ceramic material is (Ba0. 85Ca0. 85) [(Zr0. 10Ti0. 90) 1-x (Nb0. 5La0. 5) x] O3, x = 0.06-0.15, x = 0.05-0.15, x = 0.05-0.15, and x = 0.05-0.15. The invention also discloses a preparation method of the BCZT-based energy storage ceramic material with high breakdown field strength. A solid phase method is adopted for preparation, and the specific preparation method comprises the following steps: preparing materials according to the stoichiometric ratio of the chemical formula, then carrying out ball milling and presintering to obtain (Ba0. 85Ca0. 85) [(Zr0. 10Ti0. 90) 1-x (Nb0. 5La0. 5) x] O3 powder, carrying out fine grinding on the powder, adding polyvinyl alcohol for granulation, and carrying out compression molding to obtain a biscuit; removing organic substances in the biscuit at 500 DEG C to obtain a raw material green body; and sintering the raw material blank body at the temperature of 1400-1450 DEG C to obtain the BCZT-based energy storage ceramic material. The preparation method of the BCZT-based energy storage ceramic material is simple, good in repeatability and high in yield, and has the characteristics of high energy storage density (Wre = 3.1 J/cm < 3 >), high efficiency (86.7%), high breakdown field strength (Eb = 410 kV/cm), excellent fatigue resistance and the like.
本发明公开了一种具有高击穿场强的BCZT基储能陶瓷材料及其制备方法，所述BCZT基储能陶瓷材料的组成通式为：(Ba0.85Ca0.85)[(Zr0.10Ti0.90)1‑x(Nb0.5La0.5)x]O3，其中，x＝0.06～0.15；其采用固相法制备，具体制备方法为：按照化学式的化学计量比配料，然后球磨、预烧获得(Ba0.85Ca0.85)[(Zr0.10Ti0.90)1‑x(Nb0.5La0.5)x]O3粉体，将所述粉体细磨后添加聚乙烯醇造粒，压制成型得到素坯；于500℃排除素坯中的有机物质，得到生料坯体；将所述生料坏体于1400～1450℃烧结，得到所述BCZT基储能陶瓷材料。本发明BCZT基储能陶瓷材料的制备方法简单、重复性好、成品率高，具有高储能密度(Wrec＝3.1J/cm3)和效率(86.7％)、高击穿场强(Eb＝410kV/cm)和抗疲劳性能优异等特点。
BCZT-based energy storage ceramic material with high breakdown field strength and preparation method thereof
The invention discloses a BCZT-based energy storage ceramic material with high breakdown field strength and a preparation method of the BCZT-based energy storage ceramic material, the composition general formula of the BCZT-based energy storage ceramic material is (Ba0. 85Ca0. 85) [(Zr0. 10Ti0. 90) 1-x (Nb0. 5La0. 5) x] O3, x = 0.06-0.15, x = 0.05-0.15, x = 0.05-0.15, and x = 0.05-0.15. The invention also discloses a preparation method of the BCZT-based energy storage ceramic material with high breakdown field strength. A solid phase method is adopted for preparation, and the specific preparation method comprises the following steps: preparing materials according to the stoichiometric ratio of the chemical formula, then carrying out ball milling and presintering to obtain (Ba0. 85Ca0. 85) [(Zr0. 10Ti0. 90) 1-x (Nb0. 5La0. 5) x] O3 powder, carrying out fine grinding on the powder, adding polyvinyl alcohol for granulation, and carrying out compression molding to obtain a biscuit; removing organic substances in the biscuit at 500 DEG C to obtain a raw material green body; and sintering the raw material blank body at the temperature of 1400-1450 DEG C to obtain the BCZT-based energy storage ceramic material. The preparation method of the BCZT-based energy storage ceramic material is simple, good in repeatability and high in yield, and has the characteristics of high energy storage density (Wre = 3.1 J/cm < 3 >), high efficiency (86.7%), high breakdown field strength (Eb = 410 kV/cm), excellent fatigue resistance and the like.
本发明公开了一种具有高击穿场强的BCZT基储能陶瓷材料及其制备方法，所述BCZT基储能陶瓷材料的组成通式为：(Ba0.85Ca0.85)[(Zr0.10Ti0.90)1‑x(Nb0.5La0.5)x]O3，其中，x＝0.06～0.15；其采用固相法制备，具体制备方法为：按照化学式的化学计量比配料，然后球磨、预烧获得(Ba0.85Ca0.85)[(Zr0.10Ti0.90)1‑x(Nb0.5La0.5)x]O3粉体，将所述粉体细磨后添加聚乙烯醇造粒，压制成型得到素坯；于500℃排除素坯中的有机物质，得到生料坯体；将所述生料坏体于1400～1450℃烧结，得到所述BCZT基储能陶瓷材料。本发明BCZT基储能陶瓷材料的制备方法简单、重复性好、成品率高，具有高储能密度(Wrec＝3.1J/cm3)和效率(86.7％)、高击穿场强(Eb＝410kV/cm)和抗疲劳性能优异等特点。
BCZT-based energy storage ceramic material with high breakdown field strength and preparation method thereof
一种具有高击穿场强的BCZT基储能陶瓷材料及其制备方法
YANG ZUPEI (author) / SUN YAQIONG (author) / PENG ZHANHUI (author) / CHAO XIAOLIAN (author)
2024-01-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2022
| European Patent Office | 2023
High-breakdown-strength dielectric ceramic material and preparation method thereof
| European Patent Office | 2021
| European Patent Office | 2021
| European Patent Office | 2022