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Samarium-doped sodium bismuth titanate-bismuth strontium titanate ceramic material with high energy storage density and preparation method thereof
The invention provides a samarium-doped sodium bismuth titanate-bismuth strontium titanate ceramic material with high energy storage density and a preparation method thereof, and relates to the technical field of ceramic capacitor material processing. The stoichiometric ratio of the samarium-doped sodium bismuth titanate-bismuth strontium titanate ceramic material with the high energy storage density is ((Bi[0.5]Na[0.5])[0.7](Sr[0.7]Bi[0.2])[0.3])[1-x ]Sm[x])TiO[3], and x is greater than or equal to 0 and less than or equal to 0.03; the preparation process of the ceramic material mainly comprises the steps of raw material preparation, ball milling pulping, calcination ball milling, forming treatment and the like. The defects in the prior art are overcome, the prepared ceramic material is high in density and few in surface air gap, the energy storage performance of the ceramic obtained through a high-temperature quenching process is improved to 1.25 J/cm<3> from low energy storage in the background technology, the energy storage potential is also improved to 1.4 J*cm<-2>*kV<-1>, and the ceramic shows obvious performance advantages; and in addition, the energy storage density is stabilized between +/-5% within the temperature range of 20-120 DEG C, and the material can be applied to high-temperature environment energy storage devices.
本发明提供一种具有高储能密度的掺钐钛酸铋钠‑钛酸锶铋陶瓷材料及其制备方法，涉及陶瓷电容材料加工技术领域。所述高储能密度的掺钐钛酸铋钠‑钛酸锶铋陶瓷材料化学计量比为((Bi0.5Na0.5)0.7(Sr0.7Bi0.2)0.3)1‑xSmx)TiO3，且0≤x≤0.03，所述陶瓷材料的制备工艺主要包括原料准备、球磨制浆、煅烧球磨、成型处理等步骤。本发明克服了现有技术的不足，所制得的陶瓷材料密度大、表面气隙少，经高温淬火工艺所得陶瓷的储能性能由背景技术下的低储能提高到1.25J/cm3，储能潜力也提高到1.4Jcm‑2kV‑1，表现出明显的性能优势，此外，储能密度在20‑120℃的温度范围内稳定在±5％之间，可应用于高温环境储能装置。
Samarium-doped sodium bismuth titanate-bismuth strontium titanate ceramic material with high energy storage density and preparation method thereof
The invention provides a samarium-doped sodium bismuth titanate-bismuth strontium titanate ceramic material with high energy storage density and a preparation method thereof, and relates to the technical field of ceramic capacitor material processing. The stoichiometric ratio of the samarium-doped sodium bismuth titanate-bismuth strontium titanate ceramic material with the high energy storage density is ((Bi[0.5]Na[0.5])[0.7](Sr[0.7]Bi[0.2])[0.3])[1-x ]Sm[x])TiO[3], and x is greater than or equal to 0 and less than or equal to 0.03; the preparation process of the ceramic material mainly comprises the steps of raw material preparation, ball milling pulping, calcination ball milling, forming treatment and the like. The defects in the prior art are overcome, the prepared ceramic material is high in density and few in surface air gap, the energy storage performance of the ceramic obtained through a high-temperature quenching process is improved to 1.25 J/cm<3> from low energy storage in the background technology, the energy storage potential is also improved to 1.4 J*cm<-2>*kV<-1>, and the ceramic shows obvious performance advantages; and in addition, the energy storage density is stabilized between +/-5% within the temperature range of 20-120 DEG C, and the material can be applied to high-temperature environment energy storage devices.
本发明提供一种具有高储能密度的掺钐钛酸铋钠‑钛酸锶铋陶瓷材料及其制备方法，涉及陶瓷电容材料加工技术领域。所述高储能密度的掺钐钛酸铋钠‑钛酸锶铋陶瓷材料化学计量比为((Bi0.5Na0.5)0.7(Sr0.7Bi0.2)0.3)1‑xSmx)TiO3，且0≤x≤0.03，所述陶瓷材料的制备工艺主要包括原料准备、球磨制浆、煅烧球磨、成型处理等步骤。本发明克服了现有技术的不足，所制得的陶瓷材料密度大、表面气隙少，经高温淬火工艺所得陶瓷的储能性能由背景技术下的低储能提高到1.25J/cm3，储能潜力也提高到1.4Jcm‑2kV‑1，表现出明显的性能优势，此外，储能密度在20‑120℃的温度范围内稳定在±5％之间，可应用于高温环境储能装置。
Samarium-doped sodium bismuth titanate-bismuth strontium titanate ceramic material with high energy storage density and preparation method thereof
一种具有高储能密度的掺钐钛酸铋钠-钛酸锶铋陶瓷材料及其制备方法
ZHAO NIANSHUN (Autor:in) / HUANG FENG (Autor:in) / CAO JIANHUA (Autor:in) / LI ZHENG (Autor:in) / LI CHENG (Autor:in) / ZHOU YUNYAN (Autor:in)
06.08.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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