scholarly journals Switching and energy-storage characteristics in PLZT 2/95/5 antiferroelectric ceramic system

2016 ◽  
Vol 06 (04) ◽  
pp. 1620003 ◽  
Author(s):  
A. Peláiz-Barranco ◽  
Y. Mendez-González ◽  
J. D. S. Guerra ◽  
Xiucai Wang ◽  
Tongqing Yang
Keyword(s):  
Energy Storage ◽  
Hysteresis Loops ◽  
Energy Storage Density ◽  
Ceramic System ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Electric Field Dependence ◽  
Energy Storage Properties ◽  
Storage Characteristics ◽  
Storage Properties

Switching mechanisms and energy-storage properties have been investigated in (Pb[Formula: see text]La[Formula: see text](Zr[Formula: see text]Ti[Formula: see text]O3 antiferroelectric ceramics. The electric field dependence of polarization ([Formula: see text]–[Formula: see text] hysteresis loops) indicates that both the ferroelectric (FE) and antiferroelectric (AFE) phases coexist, being the AFE more stable above 100[Formula: see text]C. It has been observed that the temperature has an important influence on the switching parameters. On the other hand, the energy-storage density, which has been calculated from the [Formula: see text]–[Formula: see text] hysteresis loops, shows values higher than 1[Formula: see text]J/cm3 for temperatures above 100[Formula: see text]C with around 73% of efficiency as average. These properties indicate that the studied ceramic system reveals as a promising AFE material for energy-storage devices application.

scholarly journals BiFeO3-BaTiO3: A new generation of lead-free electroceramics

2018 ◽  
Vol 08 (06) ◽  
pp. 1830004 ◽  
Author(s):  
Dawei Wang ◽  
Ge Wang ◽  
Shunsuke Murakami ◽  
Zhongming Fan ◽  
Antonio Feteira ◽  
...  
Keyword(s):  
Energy Storage ◽  
Limited Range ◽  
Lead Free ◽  
Potassium Sodium Niobate ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Wide Range ◽  
Energy Storage Properties ◽  
New Generation ◽  
Initial Results

Lead-based electroceramics such as Pb(Zr.Ti)O3 (PZT) and its derivatives have excellent piezoelectric, pyroelectric and energy storage properties and can be used in a wide range of applications. Potential lead-free replacements for PZT such as potassium sodium niobate (KNN) and sodium bismuth titanate (NBT) have a much more limited range of useful properties and have been optimized primarily for piezoelectric applications. Here, we review the initial results on a new generation of lead-free electroceramics based on BiFeO3-BaTiO3 (BF-BT) highlighting the essential crystal chemistry that permits a wide range of functional properties. We demonstrate that with the appropriate dopants and heat treatment, BF-BT can be used to fabricate commercially viable ceramics for applications, ranging from sensors, multilayer actuators, capacitors and high-density energy storage devices. We also assess the potential of BF-BT-based ceramics for electrocaloric and pyroelectric applications.

Effect of Gd2O3/BaF2 Addition on Dielectric Behavior and Energy Storage Properties of Strontium Barium Niobate Glass-Ceramics

2014 ◽  
Vol 633 ◽  
pp. 422-426
Author(s):  
Jun Song ◽  
Guo Hua Chen ◽  
Yu Tang
Keyword(s):  
Energy Storage ◽  
Breakdown Strength ◽  
Glass Ceramics ◽  
Phase Evolution ◽  
High Energy ◽  
Dielectric Behavior ◽  
Energy Storage Density ◽  
Storage Density ◽  
Energy Storage Properties ◽  
Storage Properties

SrO–BaO–Nb2O5–B2O3system glass-ceramics with Gd2O3/BaF2addition have been prepared by controlled crystallization method. The effect of Gd2O3/BaF2addition on the phase evolution, dielectric properties and energy storage properties has been investigated. The addition of Gd2O3/BaF2to the glass-ceramics changes the dielectric property and energy storage density. The glass-ceramics with 0.5 mol% Gd2O3and 4.5mol% BaF2heat treated at 850°C/3h possesses a dielectric constant of 125, a breakdown strength of 1055 kV/mm and energy storage density of 6.16J/cm3, which are promising materials for high energy storage density dielectrics.

Enhanced energy storage properties of barium titanate ceramics made from surface modified particles

2013 ◽  
Vol 03 (03) ◽  
pp. 1350023 ◽  
Author(s):  
Zhifu Liu ◽  
Zhiqiang Zhang ◽  
Faqiang Zhang ◽  
Yongxiang Li
Keyword(s):  
Electron Microscopy ◽  
Surface Modification ◽  
Energy Storage ◽  
Dielectric Properties ◽  
Barium Titanate ◽  
Energy Storage Density ◽  
Storage Density ◽  
Energy Storage Properties ◽  
Surface Modified ◽  
Storage Properties

Surface modification of barium titanate particles has been carried out using a wet chemical method. The microstructural and dielectric properties of the ceramics made from surface modified particles were extensively investigated by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and dielectric properties measurements. The breakdown strength increased by 69% and 117% for the Al 2 O 3 and B 2 O 3– SiO 2 modified ceramics, respectively. An energy storage density of up to 3.2 J/cm3 has been obtained. The suppression of grain boundary electron transport and reduction in pore defects lead to the energy storage properties enhancement of the modified ceramics. These results indicated that surface modification of ceramic particles is a promising approach to obtain dielectric ceramics with high energy storage density.

High-performance BaZr0.35Ti0.65O3 thin film capacitors with ultrahigh energy storage density and excellent thermal stability

2018 ◽  
Vol 6 (26) ◽  
pp. 12291-12297 ◽  
Author(s):  
Zhongshuai Liang ◽  
Ming Liu ◽  
Chunrui Ma ◽  
Lvkang Shen ◽  
Lu Lu ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Harsh Environments ◽  
Energy Storage Density ◽  
Ultrahigh Energy ◽  
Excellent Thermal Stability ◽  
Storage Density ◽  
Thin Film Capacitors ◽  
Energy Storage Properties ◽  
Storage Properties

High performance Pb-free Ba(Zr0.35Ti0.65)O3 film capacitors exhibit outstanding energy storage properties over a wide temperature range from −100 °C to 200 °C, demonstrating a great foreground for utilization in equipment working in harsh environments.

Effect of the Ba/K ratio on structural, dielectric and energy storage properties of BaO–K2O–TiO2–P2O5 glass-ceramics

2020 ◽  
Vol 61 (6) ◽  
pp. 213-221
Author(s):  
E. Haily ◽  
◽  
L. Bih ◽  
A. El Bouari ◽  
A. Lahmar ◽  
...  
Keyword(s):  
Energy Storage ◽  
Glass Ceramics ◽  
Glass Network ◽  
Hysteresis Loops ◽  
X Ray Diffraction ◽  
Dielectric Parameters ◽  
Optimum Parameters ◽  
Energy Storage Properties ◽  
Volume Measurements ◽  
Storage Properties

xBaO–(20−x)K2O–30TiO2–50P2O5 with (0≤x≤20 mol%) glasses were successfully elaborated by the melt quenching while their related glass-ceramics were developed by controlled crystallisation. Density and molar volume measurements, differential thermal analysis and Raman spectroscopy were carried out to examine the glassy structure, the results revealed that the addition of BaO increases the reticulation and reinforces the glass network by the creation of strengthened linkages. X-ray diffraction has identified the formation of MTi2(PO4)3 with M=(K, Ba0·5) in all the glass-ceramics (GC) and the precipitation of a secondary BaTiP2O8 phase when x increase beyond 10 mol%. The dielectric properties of the glass-ceramics were studied by impedance spectroscopy, it showed that the addition of BaO induces an enhancement of both thermal and frequency stability of the dielectric parameters (εr and tanδ). The glass-ceramic with 5 mol% of BaO GC-(x=5) presents the highest dielectric constant and the lowest dielectric loss. The P-E hysteresis loops were recorded at room temperature and the energy storage parameters of the glass-ceramics were determined. These parameters were significantly improved by the increase of the BaO content and the optimum parameters were obtained for GC-(x=5). The dielectric and energy storage parameters were discussed according to the structure data.

scholarly journals Optimizing sandwich-structured composites based on the structure of the filler and the polymer matrix: toward high energy storage properties

RSC Advances ◽  
2019 ◽  
Vol 9 (57) ◽  
pp. 33229-33237 ◽  
Author(s):  
Yang Cui ◽  
Xuan Wang ◽  
Tiandong Zhang ◽  
Changhai Zhang ◽  
Qingguo Chi
Keyword(s):  
Energy Storage ◽  
Polymer Matrix ◽  
Composite Films ◽  
High Energy ◽  
Energy Storage Density ◽  
Storage Density ◽  
Energy Storage Properties ◽  
Storage Properties ◽  
High Energy Storage ◽  
Inorganic Composite

Inorganic composite fillers and sandwich-structured composite films have been designed for further increasing the energy storage density.

scholarly journals Temperature-dependent energy storage characterization of Pb-free relaxor ferroelectrics

2020 ◽  
Vol 10 (03) ◽  
pp. 2050009
Author(s):  
Sarir Uddin ◽  
Guang-Ping Zheng ◽  
Asif Khan ◽  
Muhammad Riaz Khan ◽  
Banaras Khan
Keyword(s):  
Energy Storage ◽  
Electric Field ◽  
Sol Gel ◽  
Relaxor Ferroelectrics ◽  
Maximum Energy ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Increase With Increase ◽  
Energy Storage Properties ◽  
Increasing Temperature

The energy storage properties of [Formula: see text][Formula: see text][Formula: see text]TiO3–[Formula: see text]BaTiO3([Formula: see text]) (BNT–BT) ceramics obtained via sol–gel method are determined from the polarization versus electric field ([Formula: see text]–[Formula: see text]) loops at various temperatures. The energy storage densities are observed to increase with increase in temperature and this may be attributed to the presence of antiferroelectric (AFE) phase at higher temperature ([Formula: see text]C). Obvious changes are observed in the saturation polarization ([Formula: see text] and remnant polarization ([Formula: see text] with increasing temperature. The maximum energy storage density of 0.6[Formula: see text]J/cm3 is observed for [Formula: see text] in the AFE phase at 150∘C for 90[Formula: see text]kV/cm of applied electric field. BNT–BT can be a promising candidate for energy storage devices to be used in above-room-temperature environment.

Excellent energy storage properties and stability of NaNbO3-Bi(Mg0.5Ta0.5)O3 ceramic by introducing (Bi0.5Na0.5)0.7Sr0.3TiO3

2021 ◽  
Author(s):  
Hongyun Chen ◽  
Junpeng Shi ◽  
Xiuli Chen ◽  
Congcong Sun ◽  
Feihong Pang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Field Strength ◽  
Large Energy ◽  
Breakdown Field ◽  
Energy Storage Density ◽  
Storage Density ◽  
Large Hysteresis ◽  
Energy Storage Properties ◽  
Storage Properties ◽  
Breakdown Field Strength

NaNbO3-based energy storage ceramics have the characteristics of high breakdown field strength (Eb) with large energy storage density (Wrec). However, due to the large hysteresis loss (Wloss) under high electric...

STRUCTURAL, FERROELECTRIC AND ENERGY-STORAGE PROPERTIES OF LEAD-FREE Zr-DOPED Bi0.5(Na0.80K0.20)0.5TiO3 FILMS

2019 ◽  
Vol 27 (01) ◽  
pp. 1950082
Author(s):  
NGO DUC QUAN ◽  
CHU T. THANH HUONG ◽  
NGUYEN T. HONG PHUONG ◽  
NGUYEN VAN HONG ◽  
VU NGOC HUNG ◽  
...  
Keyword(s):  
Energy Storage ◽  
Lead Free ◽  
Energy Storage Density ◽  
Chemical Solution ◽  
Solution Deposition ◽  
Si Substrates ◽  
Energy Storage Properties ◽  
Recoverable Energy ◽  
Perovskite Type ◽  
Storage Properties

Perovskite-type lead-free Bi[Formula: see text](Na[Formula: see text]K[Formula: see text](Ti[Formula: see text]Zrx)O3 (BNKT-[Formula: see text]Zr) ferroelectric films (with [Formula: see text] from 0.00 to 0.05) were synthesized on Pt/Ti/SiO2/Si substrates via chemical solution deposition. The influence of Zr[Formula: see text] concentration on the microstructures, ferroelectric and energy-storage properties of the prepared films was investigated in detail. It showed that the BNKT-[Formula: see text]Zr films possessed rhombohedral and tetragonal symmetries in morphotropic phase boundary when a small amount of Zr[Formula: see text] was added. Ferroelectric and energy-storage properties of the films investigated at an applied electric field of 600[Formula: see text]kV/cm were significantly enhanced with appropriate Zr[Formula: see text] concentration. The remnant polarization ([Formula: see text]), maximum polarization ([Formula: see text]) and [Formula: see text]–[Formula: see text] values at [Formula: see text] reached the highest values of 18.1[Formula: see text][Formula: see text]C/cm2, 42.0[Formula: see text][Formula: see text]C/cm2 and 24.0[Formula: see text][Formula: see text]C/cm2, respectively. Thanks to the strong enhancement in [Formula: see text] and the large [Formula: see text]–[Formula: see text] value, the highest recoverable energy-storage density gets the value of 4.6[Formula: see text]J/cm3 for the 2[Formula: see text]mol.% Zr[Formula: see text]-doped BNKT film. These obtained results indicate that the appropriate Zr[Formula: see text]-doped BNKT films have many application potentials in the advanced capacitors.

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