Ultrahigh Energy‐Storage Density in Antiferroelectric Ceramics with Field‐Induced Multiphase Transitions
By Hongsheng Wang, Yucheng Liu, T. Yang, Shujun Zhang. Advanced Functional Materials, 2019
390 citations recorded by the source corpus.
The excellent energy‐storage performance of ceramic capacitors, such as high‐power density, fast discharge speed, and the ability to operate over a broad temperature range, gives rise to their wide applications in different energy‐storage devices. In this work, the (Pb0.98La0.02)(Zr0.55Sn0.45)0.995O3 (PLZS) antiferroelectric (AFE) ceramics are prepared via a unique rolling machine approach. The field‐induced multiphase transitions are observed in polarization–electric field (P–E) hysteresis loops. All the PLZS AFE ceramics possess high energy‐storage densities and discharge efficiency (above 80%) with different sintering temperatures. Of particular significance is that an ultrahigh recoverable energy‐storage density of 10.4 J cm‐3 and a high discharge efficiency of 87% are achieved at 40 kV mm‐1 for PLZS ceramic with a thickness of 0.11 mm, sintered at 1175 °C, which are by far the highest values ever reported in bulk ceramics. Moreover, the corresponding ceramics exhibit a superior discharge current density of 1640 A cm‐2 and ultrafast discharge speed (75 ns discharge period). This great improvement in energy‐storage performance is expected to expand the practical applications of dielectric ceramics in numerous electronic devices.
Subfields: Biomedical Engineering, Electronic, Optical and Magnetic Materials, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/8d18908f53b643a55a479ef006fb9b457e96f7e0
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Biomedical Engineering
In Electronic, Optical and Magnetic Materials
In Materials Chemistry
Citations in the corpus
- (Bi0.51 Na0.47)TiO3 based lead free ceramics with high energy density and efficiency (2019, background): “Lead-based relaxor ferroelectrics/antiferroelectrics that have been extensively studied are lanthanum modified lead zirconate titanate [12,13,17,19].”