Influence of BaSnO3 additive on the energy storage properties of Na0.5Bi0.5TiO3-based relaxor ferroelectrics
Influence of BaSnO3 additive on the energy storage properties of Na0.5Bi0.5TiO3-based relaxor ferroelectrics
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DOI：
10.1016/j.jeurceramsoc.2017.11.053
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发表时间：
2017-11
影响因子：
5.7
通讯作者：
Lei Zhang;X. Pu;Min Chen;Shuaishuai Bai;Y. Pu
中科院分区：
文献类型：
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作者：
Lei Zhang;X. Pu;Min Chen;Shuaishuai Bai;Y. Pu
采用固相法制备了（1-x）NBT-xBSN（0.1 ≤x≤ 0.35）陶瓷，系统研究了其储能性能和高温电容器应用。所有样品均为钙钛矿结构，且随着BSN的加入，样品的结构由菱方相（x<0.1）转变为较低对称性的斜方相（x≥ 0.1）。BSN的加入量越大，NBT陶瓷的相变温度Tm越低。x = 0.25的样品在38 °C至319 °C的宽温度范围内表现出稳定的相对介电常数1605 ± 15%。随着BSN浓度的增加，P-E环的斜率和能量损失逐渐减小。当x = 0.25时，击穿电压高达190 kV/cm，最大放电能量密度为1.91 J/cm 3，能量效率高达86.4%。因此，相信我们的工作可以为设计新的储能系统提供重要的指导。
(1-x)NBT-xBSN (0.1 ≤x≤ 0.35) ceramics were prepared by solid state methods and their energy storage properties and high-temperature capacitor applications were systematically investigated. All samples showed a perovskite structure and the structure transformed to lower symmetry orthorhombic phase (x≥ 0.1) from rhombohedral phase (x< 0.1) to with the addition of BSN. The more addition content of BSN significantly decreases phase transition temperatureTmof NBT ceramics. Thex= 0.25 sample exhibits a stable relative permittivity of 1605 ± 15% in a broad temperature range of 38 °C to 319 °C. With increasing BSN concentration, the slope of theP-Eloops and the energy loss gradually decreases. Whenx= 0.25, a high breakdown strength of 190 kV/cm and the maximum discharge energy density of 1.91 J/cm3were obtained, of which the energy efficiency was as high as 86.4%. Thus, it was believed that our work could provide a significant guidance for designing the new system for energy storage.