Synergistically ultrahigh energy storage density and efficiency in designed sandwich-structured poly(vinylidene fluoride)-based flexible composite films induced by doping Na0.5Bi0.5TiO3 whiskers

Lin, Ying; Zhang, Yongjing; Zhan, Shili; Sun, Chuang; Hu, Guangliang; Yang, Haibo; Yuan, Qibin

doi:10.1039/d0ta07937e

Cited by 71 publications

(50 citation statements)

References 51 publications

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“…NBT or BiFeO3) followed by the formation of solid solutions, in which FE long-range order is disrupted (RFE state) whilst enhancing average ionic polarizability per unit cell. In this manner, an ultra slim RFE P-E loop may be obtained, whose (5) where RA, RB and RO are the average ionic radii of the A, B and O ions. 52 NBT has intrinsic displacive competition on the A-site between Na and Bi (Fig.…”

Section: Crystal Chemistry Of An Ideal High Energy Density Relaxor Ferroelectricmentioning

confidence: 99%

Ultrahigh energy density in short-range tilted NBT-based lead-free multilayer ceramic capacitors by nanodomain percolation

Wang

Bao

et al. 2021

Energy Storage Materials

189

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Section: Crystal Chemistry Of An Ideal High Energy Density Relaxor Ferroelectricmentioning

confidence: 99%

Ultrahigh energy density in short-range tilted NBT-based lead-free multilayer ceramic capacitors by nanodomain percolation

Wang

Bao

et al. 2021

Energy Storage Materials

189

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“…For example, Pan et al [65] constructed models of MSPBDNs to understand them when filled with a high dielectric interlayer. The process of building Na 0.5 Bi 0.5 TiO 3 (NBT)/PVDF MSPBDNs is shown in Figure 6a.…”

Section: Multilayer-structured Modelsmentioning

confidence: 99%

Section: Multilayer-structured Modelsmentioning

confidence: 99%

“…It is demonstrated that PVDF as an interlayer not only plays an important role in supporting the breakdown performance of the 3-0-3 MSPBDN but can also alleviate the electric field stress to improve the breakdown strength. To investigate the effect on the structure of MSPBDNs, Li et al [57] Lin et al [65] used MATLAB and COMSOL Multiphysics to apply the FEM. The electric potential distribution in the sandwichstructured NBT/PVDF nanocomposites is shown in Figure 10a.…”

Section: Finite Element Simulationsmentioning

confidence: 99%

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Research Progress on Multilayer‐Structured Polymer‐Based Dielectric Nanocomposites for Energy Storage

Cheng

Gao

et al. 2022

Macro Materials & Eng

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The demand for a new generation of high‐energy‐density dielectric materials in the field of capacitive energy storage is promoted by the rise of high‐power applications in electronic devices and electrical systems. Polymer‐based dielectric nanocomposites with ultrahigh charge–discharge rates and power densities play essential roles in energy storage. Recently, multilayer structure polymer‐based dielectric nanocomposites (MSPBDNs) with improved dielectric constant, breakdown constant, and discharged energy density have gained widespread interest because of their immense potential. In the present work, MSPBDNs are classified, depending on the nature of the interlayer, into those with a high insulation layer, a high dielectric layer, and a gradient structure. To further understand the breakdown process of MSPBDNs, the authors elaborate on multilayer‐structured models, analysis breakdown mechanisms, and simulations. Despite the great progress achieved, the field of developing a novel topological structure remains open to further investigation and optimization. In addition, the research prospects and directions of energy storage fields are briefly discussed and summarized.

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“…In our previous works, the Na 0.5 Bi 0.5 TiO 3 (NBT) nanowires with a high aspect ratio were synthesized by hydrothermal method and dispersed in the P(VDF-HFP) polymer matrix, resulting in the improved energy storage density of 12.7 J/cm 3 [27]. Afterwards, Yang et al synthesized NBT whiskers by a two-step molten salt process and designed sandwich-structured PVDF-based composite film, with a characteristic of the inner PVDF layer filled with NBT whiskers and the outer layers of pure PVDF [28]. The main challenges for these methods include a complex synthesis process and low yield.…”

Section: Introductionmentioning

confidence: 99%

Electrospinning Synthesis of Na0.5Bi0.5TiO3 Nanofibers for Dielectric Capacitors in Energy Storage Application

et al. 2022

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Dielectric composites based on ferroelectric ceramics nanofibers are attracting increasing attention in capacitor application. In this work, the sol–gel method and electrospinning technology are utilized to prepare one-dimensional Na0.5Bi0.5TiO3 (NBT) nanofibers, and the influence of electrospinning process parameters such as spinning voltage, liquid supply rate, and collector speed on the morphology and structure of nanofibers are systematically explored. The final optimized parameters include the applied voltage of 20 kV, the solution flow rate of 1 mL/h, and the collector’s rotation speed of 1500 rpm. The optimized NBT nanofibers are introduced into the PVDF polymer matrix for energy storage application. Owing to the enhanced interfacial polarization between PVDF matrix and NBT nanofibers with a high aspect ratio, the NBT–PVDF nanocomposites achieve a high discharge energy density of 14.59 J cm−3 and an energy efficiency of 53.69% at 490 kV mm−1, which are higher than those of pure PVDF, i.e., 10.26 J cm−3 and 48.17% at 420 kV mm−1, respectively. The results demonstrate that the strategy of synthesizing NBT nanofibers using the electrospinning method is of great potential for high-performance dielectric capacitor application.

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Synergistically ultrahigh energy storage density and efficiency in designed sandwich-structured poly(vinylidene fluoride)-based flexible composite films induced by doping Na_0.5Bi_0.5TiO₃ whiskers

Abstract: High-performance energy storage dielectrics have been the key to solve energy problems in the context of energy crisis. Designing multilayered structure is an effective approach to breaking the paradox between...

Cited by 71 publications

References 51 publications

Ultrahigh energy density in short-range tilted NBT-based lead-free multilayer ceramic capacitors by nanodomain percolation

Ultrahigh energy density in short-range tilted NBT-based lead-free multilayer ceramic capacitors by nanodomain percolation

Research Progress on Multilayer‐Structured Polymer‐Based Dielectric Nanocomposites for Energy Storage

Electrospinning Synthesis of Na0.5Bi0.5TiO3 Nanofibers for Dielectric Capacitors in Energy Storage Application

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