Multilayered ferroelectric polymer composites with high energy density …
Since the energy density is proportional to the dielectric constant, we first studied the dielectric spectroscopy of the trilayered composites. The dielectric constant of the trilayered composites can be predicted from the series capacitor rule 1/ε tri = ϕ VH /ε VH +ϕ THV /ε THV, where ϕ VH /ϕ THV and ε VH /ε THV are volume ratio and dielectric …
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High energy density with ultrahigh discharging efficiency obtained in ceramic-polymer nanocomposites using a non-ferroelectric polar polymer …
Non-ferroelectric polar polymer is introduced as matrix for the nanocomposites used as energy-storage dielectrics. • High energy density with ultrahigh discharging efficiency (~100%) are demonstrated by …
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High-Energy-Density Ferroelectric Polymer Nanocomposites for …
These basic principles of PVDF-based polymorphs indicate that ferroelectric phases lead to high electrical displacement, low efficiency, and …
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High discharged energy density of polymer nanocomposites containing paraelectric SrTiO3 nanowires for flexible energy storage …
Apparently, a high D max, a low P r and high E b are required in achieving a high discharged energy density. Paraelectric phase 1D nanofillers may be a good choice employed to decrease the P r and enhance the E b of the nanocomposites, thus improve the energy storage performance.
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Enhanced Energy Storage Density of Ferroelectric Polymer …
Abstract. A dielectric capacitor is one widely utilized basic component in current electronic and electrical systems due to its ultrahigh power density. However, the …
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Intrinsic polymer dielectrics for high energy density and low loss electric energy storage …
In summary, high energy density and low loss polymer dielectrics are highly desired for electric energy storage applications in the power frequency range (100 to 10 6 Hz). Rich condensed matter physics is involved in the development of next generation dielectric polymeric materials.
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Ultralow contents of AgNbO 3 fibers induced high energy storage density in ferroelectric polymer …
Enhanced energy storage performance, with recoverable energy density of 4.2 J cm(-3) and high thermal stability of the energy storage density (with minimal variation of ≤±5%) over 20-120 C, can ...
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Energy storage behaviors in ferroelectric capacitors …
Polar polymers with permanent dipoles are suitable for use as high-energy storage density dielectrics because of their high permittivity. One such polymer is poly (vinylidene fluoride)...
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High energy storage density and efficiency achieved in dielectric …
Ferroelectric polymers have been preferentially selected as potential alternative film materials for energy storage usages due to their high dielectric constants, like the PVDF-based copolymers have been found to possess a …
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Novel Ferroelectric Polymers for High Energy Density and Low …
The state-of-the-art polymer dielectrics have been limited to nonpolar polymers with relatively low energy density but ultralow dielectric losses for the past decades. With the fast development of power electronics in pulsed power and power conditioning applications, there is a need for next-generation dielectric capacitors in areas …
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Polymer-Based Dielectrics with High Energy Storage Density
Examples include ferroelectric polymers with very high K and very high energy density (10–49) and linear dielectric polymers with increased K, ultrahigh breakdown strength, and very low loss ...
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A Dielectric Polymer with High Electric Energy Density and Fast Discharge Speed
Consequently, the high energy density in the dielectric polymers relies on the high Eb (>500 MV/m). In general, the energy density of a dielectric material (shaded area in Fig. 1A) is equal to the integral Ue = ∫ EdD, where E is the electric field and D is the electric displacement or charge density. Therefore, besides a high Eb, a high D ...
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Ultrahigh-energy-density dielectric materials from ferroelectric polymer…
Ferroelectric polymers with improved crystallinity and strengthened molecular structure have been demonstrated to be of increased energy storage density and reduced energy loss [[36], [37] – 38]. Therefore, we propose in this study to introduce a mass of hydrogen bonds in the polymer to build a physically cross-linking network as to …
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Ferroelectric polymer networks with high energy density and …
An order of magnitude improvement of energy density over that of biaxially oriented polypropylene has been recently achieved in the uniaxially stretched ferroelectric polymers represented...
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Interfacial polarization regulation of ultrathin 2D nanosheets inducing high energy storage density of polymer …
Due to the MWS polarization mechanism, high-ε r nanofillers mean strong interfacial polarization and simultaneous intense local electric field at the interface between polymer and nanofillers under an applied electric field [22].As a result, the improvement of ε r is always achieved at the cost of E b deterioration, which is the paradox in polymer …
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High energy storage density and efficiency achieved in dielectric …
Therefore, polymer matrix composites with high breakdown field strength, low dielectric loss and high energy storage density have become the current research focus [31,32]. Numerous studies have shown that the design of multilayer structures can further improve the energy storage density of polymer matrix composites [7,33,34].
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High-Energy-Density Ferroelectric Polymer Nanocomposites for Capacitive Energy Storage…
Read ''High-Energy-Density Ferroelectric Polymer Nanocomposites for Capacitive Energy Storage: Enhanced Breakdown Strength and Improved Discharge Efficiency'' on Materials Today – the gateway for amorphous materials journal articles. Abstract: Emerging dielectric composites consisting of polymer and ceramic nano-inclusions or several …
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High energy storage density and efficiency in aligned nanofiber …
High energy density with ultrahigh discharging efficiency obtained in ceramic-polymer nanocomposites using a non-ferroelectric polar polymer as matrix Nano Energy, Volume 70, 2020, Article 104551 Xu Lu, …, Z.-Y. Cheng
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Ultra-High Energy Density in Cyanoethyl Biomass Polymers
Here an ultrahigh energy density in cyanoethyl cellulose (CEC) and cyanoethyl pullulan (CEP) obtained by replacing the hydroxyl groups of cellulose and pullulan with cyanoethyl is reported. Large dielectric constants of 16.7 and 20.0 in CEC and CEP due to the strong polarity of cyanoethyl which are comparable to high-dielectric …
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Energy Storage Properties of Blended Polymer Films …
Therefore, in order to achieve high energy storage density, the material needs high dielectric constant and dielectric breakdown strength [12, 13]. Poly(vinylidene fluoride) (PVDF), a typical …
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Recent Progress on Ferroelectric Polymer-Based Nanocomposites for High Energy Density …
Dielectric polymer nanocomposites are rapidly emerging as novel materials for a number of advanced engineering applications. In this Review, we present a comprehensive review of the use of ferroelectric polymers, especially PVDF and PVDF-based copolymers/blends as potential components in dielectric nanocomposite materials …
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Ferroelectric Polymer Networks with High Energy Density and Improved Discharged Efficiency for Dielectric Energy Storage …
Ferroelectric Polymer Networks with High Energy Density and Improved Discharged Efficiency for Dielectric Energy Storage November 2013 Nature Communications 4(1):2845
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Ferroelectric Polymer Materials for Electric Energy Storage
These materials include pure ferroelectric polymers themselves and their polymer composites. We will mainly review recent progress on how to manipulate the dielectric properties by designing the multilevel structure and composition of ferroelectric polymer materials in order to provide excellent energy storage characteristics.
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Energy Storage: High Energy and Power Density Capacitors from Solution-Processed Ternary Ferroelectric Polymer Nanocomposites (Adv …
By optimizing the filler content, they achieved 24.4 J/cm 3 of energy storage density with ∼ 78 % of efficiency at a breakdown field of ∼ 625 MV/m. In a similar strategy, Li et al. [36] also ...
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High-Energy-Density Ferroelectric Polymer Nanocomposites for Capacitive Energy Storage…
At high frequencies (10 5 -10 6 Hz), characteristic dipole relaxation, known as α a relaxation, occurs, resulting from the segmental motion of polymer chains [60,61]. This phenomenon is commonly ...
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Reseach progress of ferroelectric polymer nanocomposites with …
Last, the existing challenges and future directions of ferroelectric polymer nanocomposites with high energy storage density are summarized and prospected. …
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Ultrahigh β-phase content poly(vinylidene fluoride) with relaxor-like ferroelectricity for high energy density …
Dielectric materials are candidates for electric high power density energy storage applications, but fabrication is challenging. Here the authors report a pressing-and-folding processing of a ...
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High-Energy-Density Ferroelectric Polymer Nanocomposites for …
The most important advantage of PVDF-based nanocomposites is their high energy density after filler optimization or structural design. The state-of-the-art …
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High energy storage density and efficiency in aligned nanofiber filled nanocomposites with multilayer structure …
High-energy-density ferroelectric polymer nanocomposites for capacitive energy storage: enhanced breakdown strength and improved discharge efficiency Mater Today, 29 ( 2019 ), pp. 49 - 67 View PDF View article View in Scopus Google Scholar
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Polymer-Based Dielectrics with High Energy Storage Density
Polymer film capacitors are critical components in many high-power electrical systems. Because of the low energy density of conventional polymer dielectrics, these capacitors currently occupy significant volume in the entire electrical system. This article reviews recent progress made in the development of polymer dielectrics with high energy storage …
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Enhanced breakdown strength and energy storage density of …
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 …
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High Energy Density Nanocomposites Based on Surface-Modified BaTiO3 and a Ferroelectric Polymer …
Energy Storage in Ferroelectric Polymer Nanocomposites Filled with Core–Shell Structured Polymer@BaTiO3 Nanoparticles: Understanding the Role of Polymer Shells in the Interfacial Regions. ACS Applied Materials & Interfaces 2014, 6 (22), 19644-19654.
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Energy Storage: High Energy and Power Density Capacitors from Solution‐Processed Ternary Ferroelectric Polymer Nanocomposites (Adv. Mater…
Energy Storage: High Energy and Power Density Capacitors from Solution-Processed Ternary Ferroelectric Polymer Nanocomposites (Adv. Mater. 36/2014) Qi Li, Qi Li Department of Materials Science and Engineering, The Pennsylvania State University 16802 ...
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Recent Progress on Ferroelectric Polymer-Based …
In this Review, we present a comprehensive review of the use of ferroelectric polymers, especially PVDF and PVDF-based copolymers/blends as …
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High-energy-density polymer dielectrics via compositional and structural tailoring for electrical energy storage …
Dielectric capacitors with higher working voltage and power density are favorable candidates for renewable energy systems and pulsed power applications. A polymer with high breakdown strength, low dielectric loss, great scalability, and reliability is a preferred dielectric material for dielectric capacitors.
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Ultrahigh-energy-density dielectric materials from ferroelectric …
Here, a scalable all-organic composite based on a ferroelectric polymer incorporated with an abundant, cost-effective organic molecule, i.e., glucose is reported, …
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