High energy density in PVDF nanocomposites using an optimized nanowire array

2018 ◽  
Vol 20 (26) ◽  
pp. 18031-18037 ◽  
Author(s):  
Ru Guo ◽  
Hang Luo ◽  
Weiwei Liu ◽  
Xuefan Zhou ◽  
Lin Tang ◽  
...  
Keyword(s):  
Energy Density ◽  
Electric Field ◽  
Coating Layer ◽  
Nanowire Array ◽  
High Energy ◽  
Nanowire Arrays ◽  
High Energy Density ◽  
High Permittivity ◽  
Breakdown Electric Field ◽  
Discharged Energy Density

Introducing PZT as the coating layer of TiO2 nanowire arrays, the obtained TiO2-P/PVDF nanocomposite achieved a high permittivity and breakdown electric field of 53 at 1 kHz and 550 kV mm−1, respectively, resulting in a higher discharged energy density of 12.4 J cm−3.

Integrated copper–nickel oxide mesoporous nanowire arrays for high energy density aqueous asymmetric supercapacitors

2016 ◽  
Vol 1 (2) ◽  
pp. 150-155 ◽  
Author(s):  
Ruizhi Li ◽  
Zhijun Lin ◽  
Xin Ba ◽  
Yuanyuan Li ◽  
Ruimin Ding ◽  
...  
Keyword(s):  
Energy Density ◽  
Nickel Oxide ◽  
Specific Capacitance ◽  
High Performance ◽  
Nanowire Array ◽  
High Specific Capacitance ◽  
High Energy ◽  
Nanowire Arrays ◽  
High Energy Density ◽  
Asymmetric Supercapacitors

An integrated (Cu,Ni)O mesoporous nanowire array that delivers a high specific capacitance has been used to construct high-performance aqueous asymmetric supercapacitors of (Cu,Ni)O(+)//AC(−).

Fast Polysulfides Catalytic Conversion and Self-Repairing Ability for High Loading Lithium-Sulfur Batteries using a Permselective Coating Layer Modified Separator

Nanoscale ◽  
2021 ◽  
Author(s):  
Fanglei Zeng ◽  
Fang Wang ◽  
Ning Li ◽  
Ke Meng Song ◽  
Shi-Ye Chang ◽  
...  
Keyword(s):  
Energy Density ◽  
Coating Layer ◽  
High Energy ◽  
High Energy Density ◽  
High Loading ◽  
Battery System ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur ◽  
Modified Separator

Li-S battery is considered as one of the most promising battery system because of its large theoretical capacity and high energy density. However, the “shuttle effect” of soluble polysulfides and...

Novel graphitic sheets with ripple-like folds as an NCA cathode coating layer for high-energy-density lithium-ion batteries

2020 ◽  
Vol 32 (8) ◽  
pp. 08LT01
Author(s):  
Hong Zhao ◽  
Homei Law ◽  
Shuang Liao ◽  
Dongchu Chen ◽  
Peng Lin
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Coating Layer ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density

scholarly journals Improved dielectric constant and energy density of P(VDF-HFP) composites using NBT-xST (x=0, 0.10, 0.26) whiskers

2018 ◽  
Vol 08 (06) ◽  
pp. 1850040 ◽  
Author(s):  
Xuefan Zhou ◽  
Lu Wang ◽  
Guoliang Xue ◽  
Kechao Zhou ◽  
Hang Luo ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Dielectric Constant ◽  
Energy Storage ◽  
Energy Density ◽  
Electric Field ◽  
High Performance ◽  
Volume Fraction ◽  
High Energy ◽  
High Energy Density ◽  
Surface Modified

The high-performance energy-storage dielectric capacitors are increasingly important due to their wide applications in high power electronics. Here, we fabricated a novel P(VDF-HFP)-based capacitor with surface-modified NBT-[Formula: see text]ST ([Formula: see text], 0.10, 0.26) whiskers, denoted as Dop@NBT-[Formula: see text]ST/P(VDF-HFP). The influences of ST content, fillers’ volume fraction and electric field on the dielectric properties and energy-storage performance of the composites were investigated systematically. The results show that the dielectric constant monotonously increased with the increase of ST content and fillers’ volume fraction. The composite containing 10.0 vol% NBT-0.26ST whiskers possessed a dielectric constant of 39 at 1[Formula: see text]kHz, which was 5.6 times higher than that of pure P(VDF-HFP). It was noticed that the D-E loops of the composites became thinner and thinner with the increase of ST content. Due to the reduced remnant polarization, the composite with 5.0 vol% NBT-0.26ST whiskers achieved a high energy density of 6.18[Formula: see text]J/cm3 and energy efficiency of approximately 57% at a relatively low electric field of 200[Formula: see text]kV/mm. This work indicated that NBT-0.26ST whisker is a kind of potential ceramic filler in fabricating the dielectric capacitor with high discharged energy density and energy efficiency.

High-field antiferroelectric-like behavior in uniaxially stretched poly(vinylidene fluoride-trifluoroethylene-chlorotrifluoroethylene)-grafted-poly(methyl methacrylate) films with high energy density

RSC Advances ◽  
2016 ◽  
Vol 6 (2) ◽  
pp. 1589-1599 ◽  
Author(s):  
Honghong Gong ◽  
Bei Miao ◽  
Xiao Zhang ◽  
Junyong Lu ◽  
Zhicheng Zhang
Keyword(s):  
Energy Density ◽  
Methyl Methacrylate ◽  
High Field ◽  
Vinylidene Fluoride ◽  
Breakdown Strength ◽  
High Energy ◽  
High Energy Density ◽  
Poly Methyl Methacrylate ◽  
Poly Vinylidene Fluoride ◽  
Discharged Energy Density

The antiferroelectric-like behavior could be retained up to 675 MV m−1 with a discharged energy density of 23.3 J cm−3 because of the confinement of rigid PMMA segment onto the ferroelectric relaxation of P(VDF-TrFE-CTFE) and the high breakdown strength.

High energy density of polymer nanocomposites at a low electric field induced by modulation of their topological-structure

2016 ◽  
Vol 4 (21) ◽  
pp. 8359-8365 ◽  
Author(s):  
Yang Shen ◽  
Dashan Shen ◽  
Xin Zhang ◽  
Jianyong Jiang ◽  
Zhenkang Dan ◽  
...  
Keyword(s):  
Energy Density ◽  
Electric Field ◽  
Polymer Nanocomposites ◽  
Topological Structure ◽  
High Energy ◽  
High Energy Density

High energy density at low electric field is achieved for polymer nanocomposites by modulating topological structure.

Designing lead-free bismuth ferrite-based ceramics learning from relaxor ferroelectric behavior for simultaneous high energy density and efficiency under low electric field

2018 ◽  
Vol 6 (38) ◽  
pp. 10211-10217 ◽  
Author(s):  
Ningtao Liu ◽  
Ruihong Liang ◽  
Zhiyong Zhou ◽  
Xianlin Dong
Keyword(s):  
Energy Density ◽  
Electric Field ◽  
Bismuth Ferrite ◽  
High Energy ◽  
Relaxor Ferroelectric ◽  
High Energy Density ◽  
Lead Free ◽  
Ferroelectric Behavior ◽  
Weakly Coupled

The strategy of constructing weakly coupled polar structures is feasible and effective to boost the energy density and efficiency for bismuth ferrite-based bulk ceramics.

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