Enhanced Energy-Storage Performance of High-Entropy (1 − x )(NaBiBa)0.205(SrCa)0.1925TiO3- x Bi(Zn2/3Ta1/3)O3 Ceramic under Moderate Electric Field
Source abstract
Abstract
Abstract Developing lead-free dielectric materials with superior energy-storage properties under medium electric fields is of critical significance for the advancement of compact pulsed-power electronics and wearable energy-storage devices. Herein, an optimization methodology integrating high-entropy engineering, bandgap modulation, and ion modification is proposed to design relaxor ferroelectric ceramics with (1−x)(NaBiBa)0.205(SrCa)0.1925TiO3−xBi(Zn2/3Ta1/3)O3 (shortened as NBBSCT-xBZT). Via collaborative A/B-site ion regulation, the as-prepared ceramics achieve optimized lattice distortion, enhanced breakdown strength, and pronounced relaxor characteristics. The optimized ceramic compositions exhibit exceptional energy-storage performances, while the 0.91 NBBSCT−0.09BZT sample achieves a superior Wrec of 5.42 J/cm3 and a comparably high η of 94.71% at 328 kV/cm. This work provides a feasible and effective strategy for designing high-performance lead-free dielectric specimens, offering a promising paradigm for their practical applications in moderate-voltage and flexible energy-storage fields.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Advancements in Solid Oxide Fuel Cells · Dielectric materials and actuators
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Xi’an Jiaotong University , , ,
Xi’an University of Architecture and Technology , , ,
References (46)
Show source-provided references
1. High-performance lead-free bulk ceramics for electrical energy storage applications: design strategies and challenges10.1039/D1TA04504K ↗
2. High-entropy ceramics10.1038/s41578-019-0170-8 ↗
3. Are lead-free relaxor ferroelectric materials the most promising candidates for energy storage specimens?10.1016/j.pmatsci.2022.101046 ↗
4. Disordered enthalpy−entropy descriptor for high-entropy ceramics discovery10.1038/s41586-023-06786-y ↗
5. Research progress on high entropy oxide ceramics: Principles, preparation, and properties10.1016/j.jmrt.2025.01.015 ↗
6. High-entropy (Ca0.2Sr0.2Ba0.2La0.2Pb0.2)TiO3 perovskite ceramics with A-site short-range disorder for thermoelectric applications10.1016/j.jmst.2021.05.016 ↗
7. Irradiation performance of high entropy ceramics: A comprehensive comparison with conventional ceramics and high entropy alloys10.1016/j.pmatsci.2024.101250 ↗
8. Recent advances in high-entropy ceramics: synthesis methods, properties, and emerging applications10.3390/ceramics7040089 ↗
9. High-Entropy Tungsten Bronze Ceramics for Large Capacitive Energy Storage with Near-Zero Losses10.1002/adfm.202409446 ↗
10. Giant energy-storage density with ultrahigh efficiency in lead-free relaxors via high-entropy design10.1038/s41467-022-30821-7 ↗
11. Dielectric properties and excellent energy storage density under low electric fields for high entropy relaxor ferroelectric (Li0.2Ca0.2Sr0.2Ba0.2La0.2)TiO3 ceramic10.1016/j.jallcom.2024.173987 ↗
12. Reducing applied field in NBT-based high energy-storage ceramics via B-site entropy regulation10.1016/j.cej.2023.145386 ↗
13. Simultaneous excellent energy storage density and efficiency under applied low electric field for high entropy relaxor ferroelectric ceramics10.1016/j.materresbull.2022.112024 ↗
14. Achieving high energy storage properties in perovskite oxide via high-entropy design10.1016/j.ceramint.2022.12.073 ↗
15. Dielectric properties and electrocaloric effect of high-entropy (Na0.2Bi0.2Ba0.2Sr0.2Ca0.2)TiO3 ceramic10.1063/1.5126652 ↗
16. Arai · 2023
17. Electro-ceramics for High-Energy Density Specimens: Current Status and Future Perspectives10.1021/acs.chemrev.0c01264 ↗
18. Suppressing interfacial polarization via entropy increase strategy for superior energy-storage performance of Na0.5Bi05TiO3-based ceramics10.1016/j.jmat.2024.02.011 ↗
19. High-Entropy Design Toward Ultrahigh Energy Storage Density Under Moderate Electric Field in Bulk Lead-Free Ceramics10.1002/adfm.202411954 ↗
20. Simultaneous enhancement of polarization and breakdown strength in lead-free BaTiO3-based ceramics10.1016/j.cej.2020.128231 ↗
21. Ultrahigh Energy-Storage Multilayer Ceramic Specimens with Low Sintering Temperature10.1002/adma.202517944 ↗
22. High entropy oxide phases with perovskite structure10.3390/nano10020268 ↗
23. High Entropy Oxide Relaxor Ferroelectrics10.1021/acsami.2c00340 ↗
24. Entropy stabilized multicomponent oxides with diverse functionality − a review10.1080/10408436.2021.1886047 ↗
25. Ultrahigh energy storage in high-entropy ceramic specimens with polymorphic relaxor phase10.1126/science.adl2931 ↗
26. Energy Storage Behavior of Inorganic Dielectric Materials
27. Giant electric-field-induced strains in lead-free ceramics for actuator applications−status and perspective10.1007/s10832-012-9742-3 ↗
28. Lead-free relaxor-ferroelectric ceramics for high energy-storage applications10.1039/d0tc01786h ↗
29. Entropy-regulated local multiphase polarization states for near-zero energy loss in relaxor ferroelectrics10.1021/acsnano.5c22391 ↗
30. Local-electrostatics-induced oxygen octahedral distortion in perovskite oxides and insight into the structure of Ruddlesden−Popper phases10.1038/s41467-021-25889-6 ↗
31. Variable Range Hopping Conduction in BaTiO3 Ceramics Exhibiting Colossal Permittivity10.1021/jp502314r ↗
32. Overview No. 137: grain boundaries in dielectric and mixed-conducting ceramics10.1016/S1359-6454(99)00367-5 ↗
33. Oxygen-vacancy-related dielectric relaxation behaviours and impedance spectroscopy of Bi(Mg1/2Ti1/2)O3 modified BaTiO3 ferroelectric ceramics10.1016/j.jmat.2018.03.001 ↗
34. Data Analysis with the Vogel−Fulcher−Tammann−Hesse Equation10.1021/jp0484433 ↗
35. Ultrahigh energy storage performance in lead-free relaxor ferroelectrics10.1021/acsami.2c01287 ↗
36. High-Entropy Strategy for Improved Mechanical and Energy Storage Properties in BaTiO3−BiFeO3-Based Ceramics10.1021/acsami.3c18262 ↗
37. High energy storage density achieved in BNT-based ferroelectric translucent ceramics under low electric fields10.1111/jace.19868 ↗
38. High-Performance Energy Storage in Ba(Al0.5Nb0.5)O3-Modified (Bi0.5Na0.5)TiO3-Based Lead-Free Ceramics via High-Entropy Strategy10.1021/acsami.4c22588 ↗
39. High-energy storage performance in lead-free (0.8-x)SrTiO3-0.2Na0.5Bi05TiO3-xBaTiO3 relaxor ferroelectric ceramics10.1016/j.jallcom.2018.01.106 ↗
40. Excellent energy storage properties in lead-free ferroelectric ceramics via heterogeneous structure design10.1038/s41467-025-56767-0 ↗
41. Achieving high overall energy storage performance of KNN-based transparent ceramics by ingenious multiscale designing10.1039/d4ta02425g ↗
42. Ultrahigh-discharge energy density and efficiency in lead-free ceramics for pulsed power capacitors
43. High energy-storage performance and ultrafast discharge speed in lead-free relaxor ferroelectric ceramics
44. A novel Sr5BiTi3Nb7O30 tungsten bronze ceramic with high energy density and efficiency for dielectric capacitor applications10.1142/S2010135X22420097 ↗
45. High and stable energy-storage performance in BiFeO3 ceramics via high-entropy design10.1016/j.est.2026.121867 ↗
46. Linear-like NaNbO3-based Lead-free Relaxor Antiferroelectric Ceramics with Excellent Energy-storage and Charge-discharge Properties10.15541/jim20230486 ↗