A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Sodium bismuth titanate based high energy storage density multiphase ceramic and preparation method thereof
The invention discloses a multiphase ceramic dielectric material with high pressure resistance, high energy storage density and high energy storage efficiency. The components of the multiphase ceramic dielectric material are as shown in the formula (1-x)(Bi0.49Na0.42)Ba0.06TiO3-x(35BaO-15ZnO-10Al2O3-20B2O3-20SiO2), in the formula, x is a mole fraction, and x is greater than or equal to 0.01 and less than or equal to 0.5. Glass powder is added into an antiferroelectric phase, two-step sintering is performed, pores are filled by glass phase, and thus multiphase ceramic which is uniform and dense in micro structure can be obtained. The multiphase ceramic disclosed by the invention is excellent in energy storage density, energy storage efficiency and pressure resistance, low in consumption and good in application prospect in the field of pulse power supplies, the energy storage density of the multiphase ceramic dielectric material can be up to 1.86J/cm<3>, the energy storage efficiency of the multiphase ceramic dielectric material can be up to 80%, and the pressure resistance of the multiphase ceramic dielectric material can be up to 223kV/cm.
Sodium bismuth titanate based high energy storage density multiphase ceramic and preparation method thereof
The invention discloses a multiphase ceramic dielectric material with high pressure resistance, high energy storage density and high energy storage efficiency. The components of the multiphase ceramic dielectric material are as shown in the formula (1-x)(Bi0.49Na0.42)Ba0.06TiO3-x(35BaO-15ZnO-10Al2O3-20B2O3-20SiO2), in the formula, x is a mole fraction, and x is greater than or equal to 0.01 and less than or equal to 0.5. Glass powder is added into an antiferroelectric phase, two-step sintering is performed, pores are filled by glass phase, and thus multiphase ceramic which is uniform and dense in micro structure can be obtained. The multiphase ceramic disclosed by the invention is excellent in energy storage density, energy storage efficiency and pressure resistance, low in consumption and good in application prospect in the field of pulse power supplies, the energy storage density of the multiphase ceramic dielectric material can be up to 1.86J/cm<3>, the energy storage efficiency of the multiphase ceramic dielectric material can be up to 80%, and the pressure resistance of the multiphase ceramic dielectric material can be up to 223kV/cm.
Sodium bismuth titanate based high energy storage density multiphase ceramic and preparation method thereof
ZHOU CHANGRONG (author) / XU JIWEN (author) / YUAN CHANGLAI (author) / ZENG WEIDONG (author) / CHEN GUOHUA (author)
2015-05-27
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2021
Sodium bismuth titanate-based dielectric energy storage ceramic and preparation method thereof
| European Patent Office | 2022
| European Patent Office | 2024
| European Patent Office | 2023