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.

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.

scholarly journals Interface modification and energy storage properties of barium titanate-based/ polyvinylidene fluoride composite

2020 ◽  
Vol 69 (21) ◽  
pp. 217702
Author(s):  
Jiao Wang ◽  
Shao-Hui Liu ◽  
Chang-Qing Chen ◽  
Hao-Shan Hao ◽  
Ji-Wei Zhai
Keyword(s):  
Energy Storage ◽  
Barium Titanate ◽  
Polyvinylidene Fluoride ◽  
Interface Modification ◽  
Energy Storage Properties ◽  
Storage Properties

scholarly journals Effect of sintering temperature on the dielectric, ferroelectric and energy storage properties of SnO2-doped Bi0.5(Na0.8K0.2)0.5TiO3 lead-free ceramics

2020 ◽  
Vol 10 (04) ◽  
pp. 2050011
Author(s):  
Nguyen Truong-Tho ◽  
Le Dai Vuong
Keyword(s):  
Dielectric Constant ◽  
Energy Storage ◽  
Sintering Temperature ◽  
High Energy ◽  
Lead Free ◽  
Energy Storage Properties ◽  
Energy Storage Efficiency ◽  
High Dielectric ◽  
Storage Properties ◽  
High Energy Storage

Sintered lead-free [Formula: see text]([Formula: see text][Formula: see text]([Formula: see text][Formula: see text]O3 ceramics (BNKTS) have been fabricated via a solid-state reaction. The effect of sintering temperature on the structural, morphological, dielectric, ferroelectric and energy storage properties of BNKTS ceramics was investigated, and it was found that the electrical properties of the synthesized ceramics increased with the increase in the sintering temperature, and the highest values were achieved at [Formula: see text]C. The ceramics sintered at the optimized temperature of [Formula: see text]C exhibited the best physical, dielectric, ferroelectric and energy storage properties, namely, high density (the relative density, [Formula: see text][Formula: see text]g.cm[Formula: see text], approximate to 96.7% of the theoretical value), high densification factor ([Formula: see text]), high dielectric constant ([Formula: see text]), low dielectric loss (tan[Formula: see text]), highest dielectric constant ([Formula: see text]), high remanent polarization ([Formula: see text]C.cm[Formula: see text], high coercive field ([Formula: see text][Formula: see text]kV/cm), high energy storage density (0.12[Formula: see text]J/cm[Formula: see text], and high energy storage efficiency (41.7% at 46.3[Formula: see text]kV/cm).

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.

Structure, ferroelectric and energy density properties of BaTiO3 film capacitors for energy storage applications

2021 ◽  
pp. 2150179
Author(s):  
Min Zhang ◽  
Chaoyong Deng
Keyword(s):  
Energy Storage ◽  
Thermal Processing ◽  
Voltage Dependence ◽  
Breakdown Strength ◽  
Laser Deposition ◽  
Batio3 Film ◽  
Energy Storage Properties ◽  
Energy Storage Applications ◽  
Recoverable Energy ◽  
Storage Properties

Single-perovskite lead-free BaTiO3 ferroelectric films were synthesized on Nb:SrTiO3 substrates by pulsed laser deposition. The microstructure, ferroelectric, electric-field breakdown strength, and energy-storage properties of films were investigated. The remnant polarization [Formula: see text] reached the higher values of 34.79 [Formula: see text]C/cm2. The recoverable energy-storage density [Formula: see text] is 12.30 J/cm3. The results also reveal that rapid thermal processing (RTP) enhances the ferroelectric and energy storage properties of the film by comparison with unannealed, and ferroelectric and energy storage properties exhibit a strong voltage dependence.

Dielectric and energy storage properties of PVDF/Nd-BaTiO3@Al2O3 composite films

2019 ◽  
Vol 12 (03) ◽  
pp. 1950034 ◽  
Author(s):  
Long He ◽  
Jing Wang ◽  
Zhong Yang ◽  
Kongjun Zhu ◽  
Chaoyong Deng
Keyword(s):  
Energy Storage ◽  
Polyvinylidene Fluoride ◽  
Composite Films ◽  
Shell Structures ◽  
Storage Performance ◽  
Al2o3 Composite ◽  
Great Suppression ◽  
Energy Storage Properties ◽  
Discharged Energy Density ◽  
Storage Properties

Flexible Nd-doped BaTiO3@Al2O3/polyvinylidene fluoride (PVDF) composites have been successfully developed. With the reaction temperature of 70∘C, Nd-doped BaTiO3@Al2O3 particles display uniform core–shell structures and disperse well in the PVDF matrix. Due to the benign dielectric properties of Nd-doped BaTiO3 and great suppression of the Al2O3 coating on the leakage current and dielectric loss, the Nd-doped BaTiO3@Al2O3/PVDF composites with different Nd-doped BaTiO3@Al2O3 filling ratios (0–4[Formula: see text]vol.%) exhibit relatively good dielectric and energy storage performance. Among them, the maximum discharged energy density of 8.6[Formula: see text]J/cm3 was achieved in the composite with 1[Formula: see text]vol.% Nd-doped BaTiO3@Al2O3 loading.

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