المنتجات

Interface design for high energy density polymer nanocomposites.

Interface design for high energy density polymer nanocomposites. This review provides a detailed overview on the latest developments in the design and control of the interface in polymer based composite dielectrics for energy storage applications, along with an overview of existing challenges and practical limitations. Expand.

High-throughput data-driven interface design of high-energy …

1. Introduction. Dielectric nanocomposites have enabled widespread potential applications ranging from high-voltage direct-current transmission to hybrid electric vehicles, medical equipment, high power weapons and other electronic/electrical systems [[1], [2], [3], [4]].The combination of flexible polymers as the matrix and …

High‐Energy‐Density Dielectric Polymer Nanocomposites …

The trilayered polymer nanocomposite with an optimized filler content displays a discharged energy density of 20.5 J cm −3 at Weibull breakdown strength of …

Superhierarchical Inorganic/Organic Nanocomposites …

This is the highest energy density of all the state-of-the-art dielectric polymer nanocomposites with energy efficiency > 80% at a low electric field of <600 MV m −1. Strong atomic hybridization, large ionic displacement, the enhanced breakdown strength through forming charge-blocking layers, and the superhierarchical microstructure with ...

High discharged energy density of polymer nanocomposites induced …

Taking the advantage of the giant dielectric constant of Nd-doped BaTiO 3 ceramic filler, a high discharged energy density of 12.5 J/cm 3 and a discharged efficiency of about 50% can be realized in the nanocomposites with 1% loading under an electric field of 420 kV/mm. Our results demonstrate that ceramic nanoparticle with giant …

Recent progress on core-shell structured …

Therefore, in addition to the choice of the nanoparticle and the polymer matrix, the selection of an appropriate pre-treatment of nanoparticles is crucial to obtain high energy density nanocomposites. This review summarizes the recent work established on nanocomposites based on barium titanate (BT) as a filler and …

Ultraviolet-Irradiated All-Organic Nanocomposites with …

Electrostatic capacitors with the fastest charge–discharge rates and the highest power densities among the electrical energy storage devices are essential for advanced pulsed power systems and electrical propulsions [1,2,3,4,5].Polymers are preferred dielectrics for high-energy–density capacitors because of their inherent …

High energy density nanocomposites with layered

Polymer nanocomposites with high-dielectric-constant ceramic fillers have been supposed to a positive candidate for electrostatic capacitors owing to their higher energy density. Herein, the P(VDF-HFP)/BST (poly(vinylidene fluoride-hexafluoropropylene)/Ba 0.6 Sr 0.4 TiO 3 ) nanocomposites films were carefully …

High energy storage performance of triple-layered …

High energy storage performance of triple-layered nanocomposites with aligned conductive nanofillers over a broad electric field range - ScienceDirect. Energy …

Design and preparation of ternary polymer nanocomposites for high

High discharge energy density (U e) film capacitors are important for miniaturization and integration in power electronic applications.The U e of a polymer film is mainly dependent on Weibull's breakdown strength (E b) and dielectric constant (ε r).This work aims to develop ternary nanocomposites composed of polycarbonate (PC), Al 2 …

Polymer nanocomposite dielectrics for capacitive energy …

Owing to their excellent discharged energy density over a broad temperature range, polymer nanocomposites offer immense potential as dielectric materials in advanced electrical and electronic...

High Energy Density Nanocomposites Based on Surface …

Increasing the Energy Efficiency and Breakdown Strength of High-Energy-Density Polymer Nanocomposites by Engineering the Ba0.7Sr0.3TiO3 Nanowire Surface via Reversible Addition–Fragmentation Chain Transfer Polymerization. The Journal of Physical Chemistry C 2015, 119 (45), 25307-25318.

Interface design for high energy density polymer …

Efforts to achieve a close control of interfacial properties and geometry are then described, which includes the creation of either flexible or rigid polymer interfaces, the use of liquid crystals and developing …

High‐Energy‐Density Dielectric Polymer Nanocomposites with Trilayered

The development of advanced dielectric materials with high electric energy densities is of crucial importance in modern electronics and electric power systems. Here, a new class of multilayer-structured polymer nanocomposites with high energy and power densities is presented. The outer layers of the trilayered structure are composed of boron ...

Sandwich-structured polymer nanocomposites with high energy …

Sandwich-structured polymer nanocomposites with high energy density and great charge-discharge efficiency at elevated temperatures. / Li, Qi; Liu, Feihua; Yang, Tiannan et al. In: Proceedings of the National Academy of Sciences of the United States of America, Vol. 113, No. 36, 06.09.2016, p. 9995-10000.

Lithiothermic‐Synchronous Construction of …

Lithiothermic-Synchronous Construction of Mo-Li 2 S-Graphene Nanocomposites for High-Energy Li 2 S//Si ... For Li−S batteries, in theory, they can deliver a high energy density of 2600 Wh kg −1, but the traditional battery configuration of S/C cathode coupled with Li anode suffers from serious capacity fade and safety issues.

Cross-Linking Hollow Carbon Sheet Encapsulated …

Sodium-ion batteries (SIB) are regarded as the most promising competitors to lithium-ion batteries in spite of expected electrochemical disadvantages. Here a "cross-linking" strategy is proposed to mitigate …

Nanofiber-reinforced polymer nanocomposite with …

Flexible polymer nanocomposites reinforced by high-dielectric-constant ceramic nanofillers have shown great potential for dielectric energy storage applications in advanced electronic and electrical systems. However, it remains a challenge to improve their energy density and energy efficiency at high temperatures above 150°C. Here, we …

Tailoring Dielectric Properties and Energy Density of …

ABSTRACT: High dielectric constant (k) polymer nanocomposites have shown great potential in dielectric and energy storage applications in the past few decades. The introduction of high-k nanomaterials into ferroelectric polymers has proven to be a promising strategy for the fabrication of high-k nanocomposites. One-dimensional

High-Throughput Phase-Field Design of High …

High energy density at a low electric field is thus achieved by modulating the topological structure of polymer dielectric nanocomposites, which is of critical significance to make dielectric ...

High-Energy-Density Polymer Nanocomposites Composed …

To improve the compatibility and distributional homogeneity of the nanofiller/matrix, dopamine was coated onto the nanofiller. The results show that the energy density due to high dielectric polarization is about 10.58 J cm-3 at 420 MV m-1 and the fast charge-discharge time is 0.126 μs of 3.6 vol % BT@AO-DA NFs/PVDF …

High‐Throughput Phase‐Field Design of High‐Energy…

A comprehensive phase-field model is developed to investigate the breakdown behavior of polymer nanocomposites under electrostatic stimuli and it is found that the breakdown strength and path significantly depend on the microstructure of thenanocomposite. Understanding the dielectric breakdown behavior of polymer nanocomposites is crucial …

High Energy Storage of PLZT/PVDF Nanocomposites with a …

Designing a multilayer structure is an efficient strategy to synthesize dielectric nanocomposite films with excellent dielectric properties and energy density. In this study, lead lanthanum zirconate titanate (PLZT)/poly(vinylidene fluoride) (PVDF) films with good dielectric properties and boron nitride nanosheet (BNNS)/PVDF films with high …

High-energy-density ferroelectric polymer nanocomposites …

High-energy-density ferroelectric polymer nanocomposites utilizing the Coulomb-blockade effect - ScienceDirect. Materials Today Nano. Volume 20, December …

Designing polymer nanocomposites with high energy …

Designing polymer nanocomposites with high energy density using machine learning. Zhong-Hui Shen 1,2, Zhi-Wei Bao3, Xiao-Xing Cheng 4, Bao-Wen Li1, Han-Xing Liu1, …

Tailoring Dielectric Properties and Energy Density of …

High dielectric constant (k) polymer nanocomposites have shown great potential in dielectric and energy storage applications in the past few decades.The introduction of high-k nanomaterials into ferroelectric polymers has proven to be a promising strategy for the fabrication of high-k nanocomposites.One-dimensional large-aspect-ratio nanowires …

High Energy Storage Performance of PMMA …

High Energy Storage Performance of PMMA Nanocomposites Utilizing Hierarchically Structured Nanowires Based on Interface Engineering | ACS Applied …