Recent progress in polymer/two-dimensional nanosheets composites with novel performances

Li, Jialong; Liu, Xiaoxu; Feng, Yu; Yin, Jinghua

doi:10.1016/j.progpolymsci.2022.101505

Cited by 159 publications

(70 citation statements)

References 455 publications

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“…With the fast-growing development of electric devices and electrical power systems, polymer dielectrics with high power density and fast charge/discharge rates are particularly suited for modern electrical and electronic applications, such as high-frequency inverters, femtosecond lasers, and kinetic energy weapons. 1–4 However, the energy storage density of polymer dielectrics is generally low. For instance, the discharge energy density ( U e ) of biaxial polypropylene (BOPP) is only 2 J cm −3 at a high breakdown strength ( E b ) of ∼600 kV mm −1 , which makes it difficult to meet the demands of high energy storage equipment.…”

Section: Introductionmentioning

confidence: 99%

Adjusting the energy gap and interface effect of titania nanosheets synergistically enhances the energy storage performance of PVDF-based composites

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Section: Introductionmentioning

confidence: 99%

Adjusting the energy gap and interface effect of titania nanosheets synergistically enhances the energy storage performance of PVDF-based composites

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“…For example, as ferroelectric layers, PVDF-based polymers improve the local electric field. However, the primary polarization is still derived from Maxwelle–Wagnere–Sillars (MWS) polarization, which can be thought of as the dielectric constant or conductance interaction between adjacent dielectrics [ 133 , 134 ]. In the process, the interface polarization of the nonlinear multilayer dielectric can be established.…”

Section: Linear/nonlinear Polymer Dielectricsmentioning

confidence: 99%

Energy Storage Application of All-Organic Polymer Dielectrics: A Review

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With the wide application of energy storage equipment in modern electronic and electrical systems, developing polymer-based dielectric capacitors with high-power density and rapid charge and discharge capabilities has become important. However, there are significant challenges in synergistic optimization of conventional polymer-based composites, specifically in terms of their breakdown and dielectric properties. As the basis of dielectrics, all-organic polymers have become a research hotspot in recent years, showing broad development prospects in the fields of dielectric and energy storage. This paper reviews the research progress of all-organic polymer dielectrics from the perspective of material preparation methods, with emphasis on strategies that enhance both dielectric and energy storage performance. By dividing all-organic polymer dielectrics into linear polymer dielectrics and nonlinear polymer dielectrics, the paper describes the effects of three structures (blending, filling, and multilayer) on the dielectric and energy storage properties of all-organic polymer dielectrics. Based on the above research progress, the energy storage applications of all-organic dielectrics are summarized and their prospects discussed.

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“…where P(E) is the cumulative breakdown probability, E means the measured breakdown strength, E b is the characteristic breakdown strength, and γ is the shape parameter evaluating the scatter of the measured breakdown strength values. A higher γ value means a higher level of dielectric reliability [37]. Figure 7a,b show the Weibull distribution of E b of PVDF/BN@PDA and PVDF/BN@PDA−STNSs composites.…”

Section: Breakdown and Energy Storage Properties Of The Compositesmentioning

confidence: 99%

Enhanced Energy Storage Performance of PVDF-Based Composites Using BN@PDA Sheets and Titania Nanosheets

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With the rapid development of modern electrical and electronic applications, the demand for high-performance film capacitors is becoming increasingly urgent. The energy density of a capacitor is dependent on permittivity and breakdown strength. However, the development of polymer-based composites with both high permittivity (εr) and breakdown strength (Eb) remains a huge challenge. In this work, a strategy of doping synergistic dual-fillers with complementary functionalities into polymer is demonstrated, by which high εr and Eb are obtained simultaneously. Small-sized titania nanosheets (STNSs) with high εr and high-insulating boron nitride sheets coated with polydopamine on the surface (BN@PDA) were introduced into poly(vinylidene fluoride) (PVDF) to prepare a ternary composite. Remarkably, a PVDF-based composite with 1 wt% BN@PDA and 0.5 wt% STNSs (1 wt% PVDF/BN@PDA−STNSs) shows an excellent energy storage performance, including a high εr of ~13.9 at 1 Hz, a superior Eb of ~440 kV/mm, and a high discharged energy density Ue of ~12.1 J/cm3. Moreover, the simulation results confirm that BN@PDA sheets improve breakdown strength and STNSs boost polarization, which is consistent with the experimental results. This contribution provides a new design paradigm for energy storage dielectrics.

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Recent progress in polymer/two-dimensional nanosheets composites with novel performances

Cited by 159 publications

References 455 publications

Adjusting the energy gap and interface effect of titania nanosheets synergistically enhances the energy storage performance of PVDF-based composites

Adjusting the energy gap and interface effect of titania nanosheets synergistically enhances the energy storage performance of PVDF-based composites

Energy Storage Application of All-Organic Polymer Dielectrics: A Review

Enhanced Energy Storage Performance of PVDF-Based Composites Using BN@PDA Sheets and Titania Nanosheets

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