Improved dielectric constant and breakdown strength ofγ-phase dominant super toughened polyvinylidene fluoride/TiO2nanocomposite film: an excellent material for energy storage applications and piezoelectric throughput

2016 ◽  
Vol 28 (1) ◽  
pp. 015503 ◽  
Author(s):  
Md Mehebub Alam ◽  
Sujoy Kumar Ghosh ◽  
Debabrata Sarkar ◽  
Shrabanee Sen ◽  
Dipankar Mandal
Keyword(s):  
Dielectric Constant ◽  
Energy Storage ◽  
Polyvinylidene Fluoride ◽  
Breakdown Strength ◽  
Energy Storage Applications

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.

scholarly journals Advancing Dielectric and Ferroelectric Properties of Piezoelectric Polymers by Combining Graphene and Ferroelectric Ceramic Additives for Energy Storage Applications

Materials ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 1553 ◽  
Author(s):  
Saira Ishaq ◽  
Farah Kanwal ◽  
Shahid Atiq ◽  
Mahmoud Moussa ◽  
Umar Azhar ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Energy Storage ◽  
Barium Titanate ◽  
Polyvinylidene Fluoride ◽  
Ferroelectric Properties ◽  
Weight Ratio ◽  
Ferroelectric Ceramic ◽  
Nanocomposite Films ◽  
Piezoelectric Polymers ◽  
Energy Storage Applications

To address the limitations of piezoelectric polymers which have a low dielectric constant andto improve their dielectric and ferroelectric efficiency for energy storage applications, we designed and characterized a new hybrid composite that contains polyvinylidene fluoride as a dielectric polymer matrix combined with graphene platelets as a conductive and barium titanite as ceramic ferroelectric fillers. Different graphene/barium titanate/polyvinylidene fluoride nanocomposite films were synthesized by changing the concentration of graphene and barium titanate to explore the impact of each component and their potential synergetic effect on dielectric and ferroelectric properties of the composite. Results showed that with an increase in the barium titanate fraction, dielectric efficiency ofthe nanocomposite was improved. Among all synthesized nanocomposite films, graphene/barium titanate/polyvinylidene fluoride nanocomposite in the weight ratio of 0.15:0.5:1 exhibited thehighest dielectric constant of 199 at 40 Hz, i.e., 15 fold greater than that of neat polyvinylidene fluoride film at the same frequency, and possessed a low loss tangent of 0.6. However, AC conductivity and ferroelectric properties of graphene/barium titanate/polyvinylidene fluoride nanocomposite films were enhanced with an increase in the graphene weight fraction. Graphene/barium titanate/polyvinylidene fluoride nanocomposite films with a weight ratio of 0.2:0.1:1 possessed a high AC conductivity of 1.2 × 10−4 S/m at 40 Hz. While remanent polarization, coercive field, and loop area of the same sample were 0.9 μC/cm2, 9.78 kV/cm, and 24.5 μC/cm2·V, respectively. Our results showed that a combination of graphene and ferroelectric ceramic additives are an excellent approach to significantly advance the performance of dielectric and ferroelectric properties of piezoelectric polymers for broad applications including energy storage.

Ultrahigh Energy Storage Performances of Polymer-based Nanocomposite via Interfaces Engneering

2020 ◽  
Author(s):  
Peng Wang ◽  
Zhongbin Pan ◽  
Weilin Wang ◽  
Jianxu Hu ◽  
Jinjun Liu ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Energy Storage ◽  
High Performance ◽  
Breakdown Strength ◽  
Composite Films ◽  
Power Electronic ◽  
Ultrahigh Energy

High-performance electrostatic capacitors are in urgent demand owing to the rapidly development of advanced power electronic applications. However, polymer-based composite films with both high breakdown strength (Eb) and dielectric constant...

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.

Layer-structured BaTiO3/P(VDF–HFP) composites with concurrently improved dielectric permittivity and breakdown strength toward capacitive energy-storage applications

2020 ◽  
Vol 8 (30) ◽  
pp. 10257-10265 ◽  
Author(s):  
Liang Sun ◽  
Zhicheng Shi ◽  
Liang Liang ◽  
Shuang Wei ◽  
Huanlei Wang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Dielectric Permittivity ◽  
Breakdown Strength ◽  
Capacitive Energy Storage ◽  
Energy Storage Applications

Layer-structured nanocomposites with concurrently improved dielectric permittivity and breakdown strength, as well as superior energy-storage performances are obtained.

Dipole-relaxation dynamics in a modified polythiourea with high dielectric constant for energy storage applications

2019 ◽  
Vol 115 (16) ◽  
pp. 163901 ◽  
Author(s):  
Chao Wu ◽  
Zongze Li ◽  
Gregory M. Treich ◽  
Mattewos Tefferi ◽  
Riccardo Casalini ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Energy Storage ◽  
High Dielectric Constant ◽  
Relaxation Dynamics ◽  
Dipole Relaxation ◽  
Energy Storage Applications ◽  
High Dielectric

Characterization and Energy Storage Density of BaTiO3 - Ba(Mg1/3Nb2/3)O3 Ceramics

2010 ◽  
Vol 654-656 ◽  
pp. 2045-2048 ◽  
Author(s):  
Yi Qiu Li ◽  
Han Xing Liu ◽  
Zhong Hua Yao ◽  
Jing Xu ◽  
Yun Jiang Cui ◽  
...  
Keyword(s):  
Energy Storage ◽  
Room Temperature ◽  
Breakdown Strength ◽  
Sintering Temperature ◽  
Hysteresis Loops ◽  
Energy Storage Density ◽  
Storage Density ◽  
Two Factors ◽  
Energy Storage Applications ◽  
Scanning Electron

The energy storage density of (1-x) BaTiO3 – x Ba(Mg1/3Nb2/3)O3 (x = 0, 0.1, 0.2, 0.3) ceramics was investigated. The microstructure of samples was characterized by scanning electron microscopy (SEM). The energy storage density was calculated from the P-E hysteresis loops measured at room temperature. Experimental results show that the energy storage density of 0.9 BaTiO3 – 0.1 Ba(Mg1/3Nb2/3)O3 ceramics is highest among all compositions. At 15.8kV/mm electric field, the energy storage density of the sample can reach up to 1.07J/cm3, which is about 1.5 times higher than pure BaTiO3. The improvement of the energy density can be due to two factors: one is the improved breakdown strength caused by the optimized microstructure, the other is the decreased remnant polarization. This result indicates that bulk 0.9 BaTiO3 – 0.1 Ba(Mg1/3Nb2/3)O3 ceramic has advantages compared with pure BaTiO3 ceramic for energy storage applications, and with further improvements in microstructure and reduction of sintering temperature, could be a good candidate for energy storage capacitors.

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.

Controlled functionalization of poly(4-methyl-1-pentene) films for high energy storage applications

2016 ◽  
Vol 4 (13) ◽  
pp. 4797-4807 ◽  
Author(s):  
Min Zhang ◽  
Lin Zhang ◽  
Meng Zhu ◽  
Yiguang Wang ◽  
Nanwen Li ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Energy Storage ◽  
Breakdown Strength ◽  
High Energy ◽  
High Energy Density ◽  
Discharge Energy ◽  
New Family ◽  
Energy Storage Applications ◽  
High Energy Storage ◽  
Charge Discharge

A new family of poly(4-methyl-1-pentene) ionomers with high energy density at a high breakdown strength, high charge-discharge energy efficiency and a very narrow breakdown distribution for energy storage in future capacitor devices.

Sign in / Sign up

Export Citation Format

Share Document