Furthermore, this composite film exhibits a maximum energy storage density of 10.34 J cm −3 and an energy storage efficiency of 88.13% at 150 C. Combined with finite element simulation results, it confirms that the synergistic effect of 2D SrTiO 3 plates and sandwich-structured can effectively hinder the development of electric trees.
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<p>Polymer-based dielectric capacitors have become important energy storage components in electronic power systems attributed to their high breakdown strength, low dielectric loss, good self-healing characteristics and easy-processability. However, the poor dielectric constant and energy storage density of polymers severely limit further practical …
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The flow diagram for preparing the sandwich-structured MXene/PVDF-xDA@Ag@BT/PVDF (abbreviated as MP-xDA@Ag@BT/PVDF) nanocomposite films is schematized in Fig. 1.For preparing the DA@Ag@BT/PVDF, firstly, the BT nanoparticles (2 g) and AgNO 3 (3 wt% equivalents to BT NPs) powders were added into 200 ml DMF and …
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The energy storage density and efficiency of a 5 wt. % BiFeO 3 loaded PVDF film (5BF) have been found to be increased to ∼1.55 J/cm ³ and ∼73%, respectively, from the values of ∼1.36 J/cm ...
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For single dielectric materials, it appears to exist a trade-off between dielectric permittivity and breakdown strength, polymers with high E b and ceramics with high ε r are the two extremes [15] g. 1 b illustrates the dielectric constant, breakdown strength, and energy density of various dielectric materials such as pristine polymers, …
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P 0.94 (L 0.5 A 0.5) 0.06 ZO films annealed at 550 ℃ deliver a linear-like polarization behavior rather than FE-like behavior annealed at 700 ℃, and the lowered remanent polarization ( Pr) as well as improved EBDS (4814 kV/cm) results in the superior Wrec of 58.7 J/cm 3 and efficiency of 79.16%, simultaneously possessing excellent frequency ...
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Advanced Electronic Materials, part of the prestigious Advanced portfolio, is a top-tier open access journal for all fields of electronics materials research. The PVDF-TrFE films on graphite are found to be (100)/(1 10) oriented …
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DOI: 10.1039/d1tc05632h Corpus ID: 246056616 High-temperature dielectric polymer composite films of all-organic PVDF/ABS with excellent energy storage performance and stability @article{Zhang2022HightemperatureDP, title={High-temperature dielectric ...
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However, due to materials limitations and their preparation requirements, there are significant challenges which limit the use of current dielectrics in high-energy storage capacitors. In addition material limitations such as, low dielectric permittivity, low breakdown strength, and high hysteresis loss decrease these materials'' energy density …
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The results show the BZCT@SiO 2 /PVDF composites with a 3% volume fraction filling exhibit excellent energy storage performance, with a breakdown strength …
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To evaluate the energy-storage performance of PMN–10PT thick films, we have calculated the recoverable energy density (U rec) and energy storage efficiency (η). The U rec represents the integrated area between the …
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According to the energy storage theory U = 1 2 ε ′ ε 0 E b 2, the energy storage density of dielectric materials is proportional to their dielectric constant (ε′) and …
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The energy storage density of RC-PVDF reached 8.3 J/cm³ under the electric field of 410 MV/m, which was 144% and 176% higher than that of RC and PVDF, respectively. This work expands the ...
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The test results show that the energy storage performance of the β-phase film is better than that of the α-phase film. Secedes [ 18 ] et al. found that PVDF can be transformed from α phase to β phase by uniaxial stretching, and the content of β phase in PVDF can be increased, thus improving its energy storage performance.
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High losses and low efficiency have been the main defects limiting poly(vinylidene fluoride) (PVDF) as an energy storage film capacitor material. Herein, the linear methyl methacrylate-co-glycidyl …
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The dielectric properties and energy storage performance of the composite were improved significantly compared to pristine PVDF. The composite film with a very low content of BT (1 wt%) illustrates a high discharge energy density of 9.7 J/cm 3 at 450 MV/m, which is 2 times of pristine PVDF and nearly 5 times than the best commercial …
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Thus, the results show 0.5(Ba0.7Ca0.3)TiO3-0.5Ba(Zr0.2Ti0.8)O3/PVDF composite has the potential for energy storage and harvesting applications that can significantly suppress the excess energy ...
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Besides ultrahigh energy storage performances, the flexible BZT film capacitors exhibit excellent mechanical flexibility and ferroelectric fatigue endurance. Even after 10 4 mechanical bending cycles and further 10 6 ferroelectric fragile cycles, the W rec and η can still keep at a high value of 69.4 J/cm 3 and 84.7% at 6.15 MV/cm, respectively, …
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Upon the induced different phase compositions, the optimally processed PVDF films similarly exhibit an ultrahigh dielectric energy storage density e.g. 19.66 J cm⁻³ for annealed and 21.73 J cm ...
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In this paper, PCBM was doped into the PMMA/PVDF blend films to inhibit carrier migration and improve the energy storage performance.
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At the same time, the best performances of energy conversion and storage were achieved by 15MMT(Li-H 2 O)/PVDF-HFP composite films with 1.72 wt% H 2 O, which were also consistent with the piezoelectric and dielectric properties.
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A recoverable energy-storage density of 0.83 J/cm³ and efficiency of 70% was obtained in (Pb0.97La0.02)(Zr0.95Ti0.05)O3 ceramics at 55 kV/cm. Based on these results, (Pb0.97La0.02)(Zr0.95Ti0.05 ...
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The findings show that great storage of energy productivity ( Ue ≈ 11.43 J/cm 3, η ≈ 57.08%) is obtained for 40 vol % PC/PVDF- x wt %-TiO 2 at an optimum field strength of 450 kV/mm when the TiO 2 doping amount x is 0.9 wt %. Compared with pure PVDF, its Ue is improved by 2.3 times, η by 1.2 times, and Eb by 1.5 times.
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Polymer-based flexible dielectrics have been widely used in capacitor energy storage due to their advantages of ultrahigh power density, flexibility, and scalability. To develop the polymer dielectric films with high-energy storage density has been a hot topic in the domain of dielectric energy storage. In this study, both of electric breakdown …
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Upon UV irradiation, the dielectric constant and breakdown strength of the PVDF film were enhanced simultaneously. A high energy density of 18.6 J/cm 3, along with a charge–discharge efficiency of 81% …
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Ceramic-polymer nanocomposites exhibit good dielectric constant, low dielectric loss and excellent storage capacity for energy. A spin-coating method was used to create 30 vol% BaTiO 3 (BT) nanoparticles and polyvinylidene fluoride (PVDF) nanocomposite films with a homogeneous thickness of around 7 μm. ...
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Moreover, the BNKT-0.10BFO thin films possessed superior energy storage properties due to their slim P-E loops and large maximum polarization, with an energy storage density of 22.12 J/cm³ and an ...
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Maximum energy storage density of 8.5 J cm−3 was obtained at an optimum filler concentration of 10 vol% for surface functionalized BCZT/PVDF-HFP composite films of 10 μm thickness. Polymer nanocomposites have proved to be promising energy storage devices for modern power electronic systems.
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The structural, dielectric, ferroelectric, and energy density studies of PVDF, PVDF-ZnO, and PVDF-TZO nanocomposites thin films were performed for different concentrations (10%, 20%, 30%, and 40% ...
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Our results showed that a small amount of TiO2@SrTiO3@PDA NWs can simultaneously enhance the breakdown strength and electric displacement of …
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Optimal energy-storage properties were obtained for 0.96BNT-0.04BT-Fe2 thin films, with a breakdown strength, energy-storage density and efficiency of 2500 kV/cm, 33 J/cm³, 67.8%, respectively.
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