scholarly journals Construction of a Three-Dimensional BaTiO3 Network for Enhanced Permittivity and Energy Storage of PVDF Composites

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3585
Author(s):  
Xueqing Bi ◽  
Lujia Yang ◽  
Zhen Wang ◽  
Yanhu Zhan ◽  
Shuangshuang Wang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Polyvinylidene Fluoride ◽  
Dielectric Breakdown ◽  
Breakdown Strength ◽  
Sol Gel ◽  
Three Dimensional ◽  
Low Dielectric ◽  
Energy Storage Properties ◽  
Discharge Energy Density ◽  
Pure Pvdf

Three-dimensional BaTiO3 (3D BT)/polyvinylidene fluoride (PVDF) composite dielectrics were fabricated by inversely introducing PVDF solution into a continuous 3D BT network, which was simply constructed via the sol-gel method using a cleanroom wiper as a template. The effect of the 3D BT microstructure and content on the dielectric and energy storage properties of the composites were explored. The results showed that 3D BT with a well-connected continuous network and moderate grain sizes could be easily obtained by calcining a barium source containing a wiper template at 1100 °C for 3 h. The as-fabricated 3D BT/PVDF composites with 21.1 wt% content of 3D BT (3DBT–2) exhibited the best comprehensive dielectric and energy storage performances. An enhanced dielectric constant of 25.3 at 100 Hz, which was 2.8 times higher than that of pure PVDF and 1.4 times superior to the conventional nano–BT/PVDF 25 wt% system, was achieved in addition with a low dielectric loss of 0.057 and a moderate dielectric breakdown strength of 73.8 kV·mm−1. In addition, the composite of 3DBT–2 exhibited the highest discharge energy density of 1.6 × 10−3 J·cm−3 under 3 kV·mm−1, which was nearly 4.5 times higher than that of neat PVDF.

Dielectric and Energy Storage Properties of Polyvinylidene Fluoride/Barium Titanate Nanocomposites

2013 ◽  
Vol 833 ◽  
pp. 365-369 ◽  
Author(s):  
Yan Xia Li ◽  
Jin Long Xie ◽  
Zhen Ming Chu ◽  
Xu Sheng Wang ◽  
Xi Yao
Keyword(s):  
Energy Storage ◽  
Barium Titanate ◽  
Polyvinylidene Fluoride ◽  
Breakdown Strength ◽  
Pvdf Film ◽  
Dielectric Performance ◽  
Energy Storage Properties ◽  
High Dielectric ◽  
Pure Pvdf ◽  
Storage Properties

The combination of nanoparticles with high relative permittivity and polymers with high dielectric strength offers a potential to obtain processable nanocomposites with high dielectric performance. In this work, polyvinylidene fluoride (PVDF)-barium titanate (BT) nanocomposites were prepared by spin-coating technique. The surface of BT nanoparticles was treated by titanate coupling agent NDZ101. The dielectric and energy storage properties of the system were studied as a function of BT content. The experimental results showed that the dielectric constant of the nanocomposites increased with the increase of BT content. Although pure PVDF material has the strongest dielectric breakdown strength, the discharged energy storage density Ue of the nanocomposites was greatly improved from 2.8 J/cm3 in pure PVDF film to 6.2 J/cm3 in PVDF/20 wt% BT film; due to larger polarization of the nanocomposite.

Study of Dielectric Characteristics and Energy Storage Properties of Sr0.7Bi0.2TiO3 Doped with CaTiO3

2020 ◽  
Vol 842 ◽  
pp. 168-173
Author(s):  
Peng Zhao ◽  
Bin Tang ◽  
Feng Si ◽  
Cheng Tao Yang ◽  
Shu Ren Zhang
Keyword(s):  
Energy Storage ◽  
Dielectric Breakdown ◽  
Breakdown Strength ◽  
High Energy ◽  
Low Dielectric ◽  
Average Grain Size ◽  
Energy Storage Properties ◽  
Energy Storage Efficiency ◽  
Storage Properties ◽  
High Energy Storage

Sr0.7Bi0.2TiO3 (SBT), a kind of lead-free relaxor ferroelectric, is attracting more and more attention for pulse energy storage applications due to the low remnant polarization and high energy storage efficiency (h). However, relatively low dielectric breakdown strength (DBS) limited the recoverable energy storage density (Wrec). Herein, CaTiO3 with high intrinsic DBS was introduced in SBT. The novel solid solutions (1-x)SBT-xCT with x = 0 - 0.15 shows pure pseudo-cubic perovskite structure. When x = 0.05, the maxium polarization are improved, and the CT doping decreases the average grain size, leading to an enhanced DBS. A high energy storage properties of 1.59 J/cm3 with the h of 87.4% at 220 kV/cm is achieved in 0.95SBT-0.05CT, which demonstrates that this 0.95SBT-0.05CT is prospective materials for energy storage application.

Polymer Nanocomposites for Energy Storage Applications

2010 ◽  
Author(s):  
Amira B. Meddeb ◽  
Zoubeida Ounaies
Keyword(s):  
Dielectric Constant ◽  
Energy Storage ◽  
Polymer Nanocomposites ◽  
Dielectric Breakdown ◽  
Breakdown Strength ◽  
Polarized Light ◽  
Scanning Calorimetry ◽  
Low Dielectric ◽  
Energy Storage Applications ◽  
High Dielectric

High dielectric polymer nanocomposites are promising candidates for energy storage applications. The main criteria of focus are high dielectric breakdown strength, high dielectric constant and low dielectric loss. In this study, we investigate the effect of the addition of TiO2 particles to PVDF matrix on the dielectric constant, breakdown and energy density of the system. The dispersion of the particles is qualified by scanning electron microscopy (SEM). The morphology of the composites is characterized by polarized light microscopy, Fourier transform infrared spectroscopy (FTIR) and differential scanning calorimetry (DSC). The dielectric properties are measured by a Novocontrol system with an Alpha analyzer. Finally, the breakdown measurements are carried out by a QuadTech hipot tester.

Improved dielectric breakdown strength and energy storage properties in Er2O3 modified Sr0.35Bi0.35K0.25TiO3

2021 ◽  
Vol 403 ◽  
pp. 126290 ◽  
Author(s):  
Peng Zhao ◽  
Bin Tang ◽  
Zixuan Fang ◽  
Feng Si ◽  
Chengtao Yang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Dielectric Breakdown ◽  
Breakdown Strength ◽  
Dielectric Breakdown Strength ◽  
Energy Storage Properties ◽  
Storage Properties

scholarly journals Dielectric Breakdown Strength and Energy Storage Density of CCTO-ZBS Electroceramic

2020 ◽  
Vol 596 ◽  
pp. 012006
Author(s):  
Muhammad Qusyairie Saari ◽  
Julie Juliewatty Mohamed ◽  
Muhammad Azwadi Sulaiman ◽  
Mohd Fariz Abd Rahman ◽  
Zainal Arifin Ahmad ◽  
...  
Keyword(s):  
Energy Storage ◽  
Dielectric Breakdown ◽  
Breakdown Strength ◽  
Energy Storage Density ◽  
Dielectric Breakdown Strength ◽  
Storage Density

scholarly journals Enhancing the dielectric, electrocaloric and energy storage properties of lead-free Ba0.85Ca0.15Zr0.1Ti0.9O3 ceramics prepared via sol-gel process

2021 ◽  
Vol 603 ◽  
pp. 412760
Author(s):  
H. Mezzourh ◽  
S. Belkhadir ◽  
D. Mezzane ◽  
M. Amjoud ◽  
E. Choukri ◽  
...  
Keyword(s):  
Energy Storage ◽  
Sol Gel ◽  
Lead Free ◽  
Sol Gel Process ◽  
Energy Storage Properties ◽  
Storage Properties

High energy storage density of tetragonal PBLZST antiferroelectric ceramics with enhanced dielectric breakdown strength

2020 ◽  
Vol 46 (3) ◽  
pp. 3921-3926 ◽  
Author(s):  
Yujing Zhang ◽  
Pin Liu ◽  
Meng Shen ◽  
Wenru Li ◽  
Weigang Ma ◽  
...  
Keyword(s):  
Energy Storage ◽  
Dielectric Breakdown ◽  
Breakdown Strength ◽  
High Energy ◽  
Energy Storage Density ◽  
Dielectric Breakdown Strength ◽  
Storage Density ◽  
High Energy Storage Density ◽  
High Energy Storage

Crystallization kinetics, breakdown strength, and energy-storage properties in niobate-based glass-ceramics

2017 ◽  
Vol 722 ◽  
pp. 212-218 ◽  
Author(s):  
Jinhua Liu ◽  
Haitao Wang ◽  
Bo Shen ◽  
Jiwei Zhai ◽  
Zhongbin Pan ◽  
...  
Keyword(s):  
Energy Storage ◽  
Crystallization Kinetics ◽  
Breakdown Strength ◽  
Glass Ceramics ◽  
Energy Storage Properties ◽  
Storage Properties
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