Journal ArticleDOI
Energy storage performance of Bi0.5Na0.5TiO3-based relaxor ferroelectric ceramics with superior temperature stability under low electric fields
Ruirui Kang,Zepeng Wang,Xiaojie Lou,Wenyuan Liu,Peng Shi,Xiaopei Zhu,Xudong Guo,Siyi Li,Haonan Sun,Lixue Zhang,Qinzhao Sun +10 more
TLDR
In this article, the authors designed a comprehensive strategy to synthesize lead-free (Bi1/2Na 1/2)1−xSrxTi0.02O3 (BNT-xST-2FN, x = 0.30, 0.35, 040 and 0.45) ceramics via traditional solid-state method.About:
This article is published in Chemical Engineering Journal.The article was published on 2021-04-15. It has received 100 citations till now. The article focuses on the topics: Electric field & Energy storage.read more
Citations
More filters
Journal ArticleDOI
High-performance lead-free bulk ceramics for electrical energy storage applications: design strategies and challenges
TL;DR: In this article, the authors present an overview on the current state-of-the-art lead-free bulk ceramics for electrical energy storage applications, including (SrirTiO3, CaTiO), BaTiO, (Bi0.5Na 0.5), (K0.1 Na 0.1), (NbO3), BiFeO, AgNiO, and NaNbo3-based Ceramics.
Journal ArticleDOI
Giant energy-storage density with ultrahigh efficiency in lead-free relaxors via high-entropy design
TL;DR: In this article , the authors proposed a high-entropy strategy to design local polymorphic distortion including rhombohedral-orthorhombic-tetragonal-cubic multiphase nanoclusters and random oxygen octahedral tilt, resulting in ultrasmall polar nanoregions, an enhanced breakdown electric field, and delayed polarization saturation.
Journal ArticleDOI
Perspectives and challenges for lead-free energy-storage multilayer ceramic capacitors
TL;DR: In this paper, the authors present perspectives and challenges for lead-free energy-storage multilayer ceramic capacitors (MLCCs) and discuss emerging applications of energy storage MLCCs in terms of advanced pulsed power sources and high-density power converters.
Journal ArticleDOI
Aliovalent Doping Engineering for A- and B-Sites with Multiple Regulatory Mechanisms: A Strategy to Improve Energy Storage Properties of Sr0.7Bi0.2TiO3-Based Lead-Free Relaxor Ferroelectric Ceramics.
Peng Zhao,Peng Zhao,Zixuan Fang,Xingchen Zhang,Jingjing Chen,Yidi Shen,Xing Zhang,Qi An,Chengtao Yang,Xingsen Gao,Shuren Zhang,Bin Tang +11 more
TL;DR: In this paper, defect pairs were introduced into the A-site of SBT to obtain 0.95SBKT-0.05NN with high energy storage density (W) of 2.45 J/cm3 with a high efficiency of 93.1%.
Journal ArticleDOI
Enhanced breakdown strength and energy storage density of lead-free Bi0.5Na0.5TiO3-based ceramic by reducing the oxygen vacancy concentration
TL;DR: In this paper, a lead-free 0.1 NaNbO3 ceramic with x = 0.01 exhibited an excellent recoverable energy storage density of 3.12 J/cm3 and an efficiency of 87.86% at 270 KV/cm.
References
More filters
Journal ArticleDOI
Perovskite lead-free dielectrics for energy storage applications
TL;DR: In this paper, the authors summarize the principles of dielectric energy-storage applications, and recent developments on different types of Dielectrics, namely linear dielectrics (LDE), paraelectric, ferroelectrics, and antiferro electrics, focusing on perovskite lead-free dielectors.
Journal ArticleDOI
Ultrahigh–energy density lead-free dielectric films via polymorphic nanodomain design
Hao Pan,Fei Li,Fei Li,Yao Liu,Qinghua Zhang,Meng Wang,Shun Lan,Yunpeng Zheng,Jing Ma,Lin Gu,Yang Shen,Pu Yu,Shujun Zhang,Long Qing Chen,Yuanhua Lin,Ce-Wen Nan +15 more
TL;DR: The enhancement in the dielectric properties suggests that the strategy for optimizing a ceramic solid solution enables the design of better high- performance capacitors and should be generalizable for designing high-performance dielectrics and other functional materials that benefit from nanoscale domain structure manipulation.
Journal ArticleDOI
High-Temperature Dielectric Materials for Electrical Energy Storage
TL;DR: In this article, the authors present an overview of recent progress in the field of nanostructured dielectric materials targeted for high-temperature capacitive energy storage applications, including polymer nanocomposites, and bulk ceramics and thin films.
Journal ArticleDOI
Lone-Pair-Induced Covalency as the Cause of Temperature- and Field-Induced Instabilities in Bismuth Sodium Titanate
TL;DR: In this article, a complex-like bonding of the octahedra at the center of the perovskite was determined to be mediated by a loss of hybridization of the 6s2 bismuth lone pair interacting with the oxygen p-orbitals, which triggered both the field-induced phase transition and the loss of macroscopic ferroelectric order at depolarization temperature.
Journal ArticleDOI
Linear-like lead-free relaxor antiferroelectric (Bi0.5Na0.5)TiO3–NaNbO3 with giant energy-storage density/efficiency and super stability against temperature and frequency
He Qi,Ruzhong Zuo +1 more
Abstract: A novel lead-free polar dielectric ceramic with linear-like polarization responses was found in (1 − x)(Bi0.5Na0.5)TiO3–xNaNbO3 ((1 − x)BNT–xNN) solid solutions, exhibiting giant energy storage density/efficiency and super stability against temperature and frequency. High-resolution transmission electron microscopy, Raman scattering and Rietveld refinements of X-ray diffraction data suggest that these property characteristics can be derived from temperature and electric field insensitive large permittivity as a result of relaxor antiferroelectricity (AFE) with polar nanoregions. Additionally, this feature intrinsically requires a high driving field for AFE to ferroelectric (FE) phase transitions due to large random fields. Measurements of temperature-dependent permittivity and polarization versus electric field hysteresis loops indicate that the high-temperature AFE P4bm phase in BNT was gradually stabilized close to room temperature, accompanying a phase transition from relaxor rhombohedral FEs to relaxor tetragonal AFEs approximately at x = 0.15–0.2. A record high of recoverable energy-storage density W ∼ 7.02 J cm−3 as well as a high efficiency η ∼ 85% was simultaneously achieved in the x = 0.22 bulk ceramic, which challenges the existing fact that W and η must be seriously compromised. Furthermore, desirable W (>3.5 J cm−3) and η (>88%) with a variation of less than 10% can be accordingly obtained in the temperature range of 25–250 °C and frequency range of 0.1–100 Hz. These excellent energy-storage properties would make BNT-based lead-free AFE ceramic systems a potential candidate for application in pulsed power systems.
Related Papers (5)
Linear-like lead-free relaxor antiferroelectric (Bi0.5Na0.5)TiO3–NaNbO3 with giant energy-storage density/efficiency and super stability against temperature and frequency
He Qi,Ruzhong Zuo +1 more