In-depth understanding of interfacial crystallization via Flash DSC and enhanced energy storage density in ferroelectric P(VDF-CTFE)/Au NRs nanocomposites for capacitor application

Soft Matter ◽  
2018 ◽  
Vol 14 (37) ◽  
pp. 7714-7723 ◽  
Author(s):  
Yingxin Chen ◽  
Lingyun Yao ◽  
Chengbiao Yang ◽  
Lei Zhang ◽  
Peng Zheng ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Crystallization Kinetics ◽  
Energy Storage Density ◽  
Storage Density

Great improvements in energy density are attained in P(VDF-CTFE)/Au NRs nanocomposites, and interfacial crystallization kinetics are well revealed by Flash DSC.

Greatly enhanced discharge energy density and efficiency of novel relaxation ferroelectric BNT–BKT-based ceramics

2020 ◽  
Vol 8 (2) ◽  
pp. 591-601 ◽  
Author(s):  
Di Hu ◽  
Zhongbin Pan ◽  
Xiang Zhang ◽  
Haoran Ye ◽  
Zhouyang He ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
High Efficiency ◽  
Energy Storage Density ◽  
Discharge Energy ◽  
Storage Density ◽  
Recoverable Energy ◽  
Discharge Energy Density

The 0.65(NBT-BKT)–0.35SBT ceramic possesses an ultra-high recoverable energy storage density (Wrec ∼ 4.06 J cm−3) and maintains a relatively high efficiency (η = ∼87.3%).

scholarly journals Significantly Enhanced Energy Storage Density by Modulating the Aspect Ratio of BaTiO3 Nanofibers

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Dou Zhang ◽  
Xuefan Zhou ◽  
James Roscow ◽  
Kechao Zhou ◽  
Lu Wang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Aspect Ratio ◽  
Volume Fraction ◽  
Breakdown Strength ◽  
Electric Displacement ◽  
High Energy ◽  
High Energy Density ◽  
Energy Storage Density ◽  
Storage Density

Abstract There is a growing need for high energy density capacitors in modern electric power supplies. The creation of nanocomposite systems based on one-dimensional nanofibers has shown great potential in achieving a high energy density since they can optimize the energy density by exploiting both the high permittivity of ceramic fillers and the high breakdown strength of the polymer matrix. In this paper, BaTiO3 nanofibers (NFs) with different aspect ratio were synthesized by a two-step hydrothermal method and the permittivity and energy storage of the P(VDF-HFP) nanocomposites were investigated. It is found that as the BaTiO3 NF aspect ratio and volume fraction increased the permittivity and maximum electric displacement of the nanocomposites increased, while the breakdown strength decreased. The nanocomposites with the highest aspect ratio BaTiO3 NFs exhibited the highest energy storage density at the same electric field. However, the nanocomposites with the lowest aspect ratio BaTiO3 NFs achieved the maximal energy storage density of 15.48 J/cm3 due to its higher breakdown strength. This contribution provides a potential route to prepare and tailor the properties of high energy density capacitor nanocomposites.

scholarly journals Low-Cost High Energy Density Material for Solar Thermal Heat Storage

2020 ◽  
Vol 3 (2) ◽  
pp. 46-56
Author(s):  
Rebhi Damseh
Keyword(s):  
Thermal Conductivity ◽  
Energy Storage ◽  
Energy Density ◽  
Heat Storage ◽  
Low Cost ◽  
High Energy ◽  
Solar Thermal ◽  
Energy Storage Density ◽  
Solar Thermal Energy ◽  
Storage Density

A low-cost and enhanced thermal properties composite material for sensible heat storage in solar thermal energy storage applications is introduced. The proposed material is produced primarily for small scale solar thermal applications. However, it can be utilized for large scale solar thermal plants. The material has the advantages of high thermal conductivity and large energy storage density. The introduced material is composed of a mixture of cement and cast-iron particles. To obtain an optimal mixture, different samples of the material are prepared with different ratios of the cement-iron weights. The thermal conductivity of the produced samples is measured by using the linear heat conduction method. The specific heat capacity of the produced mixtures is calculated by using the Rule of the mixture. The obtained results show that the introduced material has a significant enhancement in thermal conductivity. Where, thermal conductivity as high as ~6.0 W/m.K and energy storage density as high as ~788 Joule/cm3 are achieved. The estimated volume energy density is ~89% higher than that of water. The produced material has the advantage of high energy volume density, being unhazardous, chemically stable, eco-friendly, easy to fabricate, and integrate with solar thermal energy systems and is a low-cost material.

Achieving high discharge energy density and efficiency with NBT-based ceramics for application in capacitors

2019 ◽  
Vol 7 (14) ◽  
pp. 4072-4078 ◽  
Author(s):  
Zhongbin Pan ◽  
Di Hu ◽  
Yang Zhang ◽  
Jinjun Liu ◽  
Bo Shen ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
High Efficiency ◽  
Energy Storage Density ◽  
Discharge Energy ◽  
Stored Energy ◽  
High Discharge ◽  
Storage Density ◽  
Recoverable Energy ◽  
Discharge Energy Density

The 0.94(BNT–BST)–0.06KNN ceramic possesses an excellent stored energy storage density (Ws = ∼3.13 J cm−3), a recoverable energy storage density (Wr = ∼2.65 J cm−3), and maintains a relatively high efficiency (η ∼ 84.6%).

Highly enhanced dielectric strength and energy storage density in hydantoin@BaTiO3–P(VDF-HFP) composites with a sandwich-structure

RSC Advances ◽  
2015 ◽  
Vol 5 (65) ◽  
pp. 52809-52816 ◽  
Author(s):  
Hang Luo ◽  
Dou Zhang ◽  
Lu Wang ◽  
Chao Chen ◽  
Jing Zhou ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Sandwich Structure ◽  
Dielectric Strength ◽  
Energy Storage Density ◽  
Storage Density ◽  
Discharged Energy Density

The dielectric strength and discharged energy density are largely enhanced in the sandwich-structured hydantoin@BaTiO3–P(VDF-HFP) composites.

Construction of a 3D-BaTiO3 network leading to significantly enhanced dielectric permittivity and energy storage density of polymer composites

2017 ◽  
Vol 10 (1) ◽  
pp. 137-144 ◽  
Author(s):  
Suibin Luo ◽  
Yanbin Shen ◽  
Shuhui Yu ◽  
Yanjun Wan ◽  
Wei-Hsin Liao ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Dielectric Permittivity ◽  
Polymer Composites ◽  
Polymer Matrix ◽  
Energy Storage Density ◽  
Storage Density ◽  
Discharged Energy Density

The 3D-connected BaTiO3 network introduced into the polymer matrix improves polarization transmission and results in significantly enhanced permittivity and discharged energy density.

Bi0.5Na0.5TiO3-based relaxor ferroelectric ceramic with large energy density and high efficiency under a moderate electric field

2019 ◽  
Vol 7 (34) ◽  
pp. 10514-10520 ◽  
Author(s):  
Xiaoshuang Qiao ◽  
Di Wu ◽  
Fudong Zhang ◽  
Bi Chen ◽  
Xiaodan Ren ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Electric Field ◽  
High Efficiency ◽  
Ferroelectric Ceramic ◽  
Relaxor Ferroelectric ◽  
Large Energy ◽  
Energy Storage Density ◽  
Storage Density ◽  
Moderate Electric Field

Large energy storage density and high efficiency in Bi0.5Na0.5TiO3-based relaxor ferroelectric ceramic induced by AgNbO3 doping.

scholarly journals Composite of Aromatic Polythiourea/BaTiO3 Nanowires with High Energy Density and High Discharge Efficiency for Energy Storage Applications

2021 ◽  
Author(s):  
Li Xiali ◽  
Liuwei Shi ◽  
Lei Chen ◽  
Wenyao Yang ◽  
Xiaoting Zha ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Energy Storage Density ◽  
High Discharge ◽  
Storage Density ◽  
Discharge Efficiency ◽  
High Energy Storage Density ◽  
High Energy Storage

Abstract Ceramic/polymer nanocomposites have shown great potential in high energy storage density capacitors for pulsed power applications. However, due to the difference in surface energy between inorganic fillers and polymers, the discharge energy density and efficiency of nanocomposites are limited. In this article, the BaTiO3 (BT) nanowires (nws) modified with dopamine (Dopa) was introduced into aromatic polythiourea (ArPTU) polymer matrix as composite for high performance dielectrics. This is a new path about the introduction of a high dielectric constant ceramic into high dipole moment linear polymers (HDMLP), which produces the polymer composite with high energy storage density and high discharge efficiency. The composite ArPTU/BT nws shows an energy density of 7.5 Jžcm-3 and high efficiency more than 90 % is obtained under an electric field of 250 MVžm-1. It also has been found that the modification of BT nws with the dopamine reduces the dielectric loss of composite effectively due to the good synergistic effective between ArPTU and BT nws, and high stability of composite for energy storage is also achieved. This work provides an effective solution for achieving high energy storage density and high discharge efficiency in polymer dielectrics for practical capacitor applications.

scholarly journals Enhanced energy storage density of all-organic fluoropolymer composite dielectric via introducing crosslinked structure

RSC Advances ◽  
2021 ◽  
Vol 11 (25) ◽  
pp. 15177-15183
Author(s):  
Xiongjie Li ◽  
Ying Yang ◽  
Yiping Wang ◽  
Shuting Pang ◽  
Jingjing Shi ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Energy Storage Density ◽  
Storage Density ◽  
Organic Composites

High energy density is achieved for all-organic composites by introducing crosslinked structure.

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

2020 ◽  
Vol 8 (44) ◽  
pp. 23427-23435
Author(s):  
Ying Lin ◽  
Yongjing Zhang ◽  
Shili Zhan ◽  
Chuang Sun ◽  
Guangliang Hu ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Vinylidene Fluoride ◽  
Composite Films ◽  
Energy Storage Density ◽  
Ultrahigh Energy ◽  
Storage Density ◽  
Poly Vinylidene Fluoride ◽  
Discharged Energy Density

Newly designed sandwich-structured poly(vinylidene fluoride)-based composite films with Na0.5Bi0.5TiO3 whiskers give rise to ultrahigh discharged energy density and efficiency.

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