Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Composite ion modified sodium bismuth titanate-based energy storage ceramic material and preparation method thereof
The invention is applicable to the technical field of sodium bismuth titanate-based energy storage ceramic materials, and provides a composite ion modified sodium bismuth titanate-based energy storage ceramic material, the general formula of the material is (Na < 0.5 > Bi < 0.5 >) < 1-y > SryTi < 1-x > MxO3, x is more than or equal to 0.05 and less than or equal to 0.20, and y is more than or equal to 0.20 and less than or equal to 0.30; and M is a composite ion having an average valence of 4. The invention also provides a preparation method of the composite ion modified sodium bismuth titanate-based energy storage ceramic material. According to the invention, SrTiO3-MO2 is introduced into Na0. 5Bi0. 5TiO3, a Sr element enters an A site of a perovskite structure to compensate for metal ion vacancy caused by volatilization of Bi and Na, and a composite ion M enters a B site to replace tetravalent Ti, so that generation of oxygen vacancy is effectively inhibited, a random electric field of the B site of the perovskite structure is enhanced, the breakdown strength of the ceramic is improved, and the hysteresis characteristic of a ferroelectric hysteresis loop is reduced; and the energy storage efficiency is improved.
本发明适用于钛酸铋钠基储能陶瓷材料技术领域，提供了一种复合离子改性钛酸铋钠基储能陶瓷材料，料通式为(Na0.5Bi0.5)1‑ySryTi1‑xMxO3，0.05≤x≤0.20，0.20≤y≤0.30；所述M为平均化合价是4价的复合离子。本发明还提供了一种复合离子改性钛酸铋钠基储能陶瓷材料的制备方法。本发明将SrTiO3‑MO2引入Na0.5Bi0.5TiO3中，Sr元素进入钙钛矿结构的A位，补偿因为Bi和Na挥发导致的金属离子空位，复合离子M进入B位取代4价的Ti，从而有效地抑制氧空位的产生，增强钙钛矿结构B位的无规电场，提高了陶瓷的击穿强度，降低了电滞回线的滞后特征，提高储能效率。
Composite ion modified sodium bismuth titanate-based energy storage ceramic material and preparation method thereof
The invention is applicable to the technical field of sodium bismuth titanate-based energy storage ceramic materials, and provides a composite ion modified sodium bismuth titanate-based energy storage ceramic material, the general formula of the material is (Na < 0.5 > Bi < 0.5 >) < 1-y > SryTi < 1-x > MxO3, x is more than or equal to 0.05 and less than or equal to 0.20, and y is more than or equal to 0.20 and less than or equal to 0.30; and M is a composite ion having an average valence of 4. The invention also provides a preparation method of the composite ion modified sodium bismuth titanate-based energy storage ceramic material. According to the invention, SrTiO3-MO2 is introduced into Na0. 5Bi0. 5TiO3, a Sr element enters an A site of a perovskite structure to compensate for metal ion vacancy caused by volatilization of Bi and Na, and a composite ion M enters a B site to replace tetravalent Ti, so that generation of oxygen vacancy is effectively inhibited, a random electric field of the B site of the perovskite structure is enhanced, the breakdown strength of the ceramic is improved, and the hysteresis characteristic of a ferroelectric hysteresis loop is reduced; and the energy storage efficiency is improved.
本发明适用于钛酸铋钠基储能陶瓷材料技术领域，提供了一种复合离子改性钛酸铋钠基储能陶瓷材料，料通式为(Na0.5Bi0.5)1‑ySryTi1‑xMxO3，0.05≤x≤0.20，0.20≤y≤0.30；所述M为平均化合价是4价的复合离子。本发明还提供了一种复合离子改性钛酸铋钠基储能陶瓷材料的制备方法。本发明将SrTiO3‑MO2引入Na0.5Bi0.5TiO3中，Sr元素进入钙钛矿结构的A位，补偿因为Bi和Na挥发导致的金属离子空位，复合离子M进入B位取代4价的Ti，从而有效地抑制氧空位的产生，增强钙钛矿结构B位的无规电场，提高了陶瓷的击穿强度，降低了电滞回线的滞后特征，提高储能效率。
Composite ion modified sodium bismuth titanate-based energy storage ceramic material and preparation method thereof
一种复合离子改性钛酸铋钠基储能陶瓷材料及其制备方法
GE WENWEI (Autor:in) / WU CHEN (Autor:in) / QIU XIAOMING (Autor:in)
10.11.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2024
Sodium bismuth titanate-based dielectric energy storage ceramic and preparation method thereof
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2021
| Europäisches Patentamt | 2023