High Energy Density Nanocomposites Based on Surface-Modified BaTiO3 and a Ferroelectric Polymer

ACS Nano ◽  
2009 ◽  
Vol 3 (9) ◽  
pp. 2581-2592 ◽  
Author(s):  
Philseok Kim ◽  
Natalie M. Doss ◽  
John P. Tillotson ◽  
Peter J. Hotchkiss ◽  
Ming-Jen Pan ◽  
...  
Keyword(s):  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Ferroelectric Polymer ◽  
Surface Modified

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.

Multilayered ferroelectric polymer composites with high energy density at elevated temperature

2021 ◽  
Vol 202 ◽  
pp. 108594
Author(s):  
Yushu Li ◽  
Sang Cheng ◽  
Shaojie Wang ◽  
Chao Yuan ◽  
Zhen Luo ◽  
...  
Keyword(s):  
Elevated Temperature ◽  
Energy Density ◽  
Polymer Composites ◽  
High Energy ◽  
High Energy Density ◽  
Ferroelectric Polymer

A surface-modified TiO2 nanorod array/P(VDF–HFP) dielectric capacitor with ultra high energy density and efficiency

2017 ◽  
Vol 5 (48) ◽  
pp. 12777-12784 ◽  
Author(s):  
Shudi Liao ◽  
Zhonghui Shen ◽  
Hao Pan ◽  
Xin Zhang ◽  
Yang Shen ◽  
...  
Keyword(s):  
Energy Density ◽  
Nanorod Array ◽  
High Energy ◽  
High Energy Density ◽  
Ultra High Energy ◽  
Ultrahigh Energy ◽  
Tio2 Nanorod ◽  
Tio2 Nanorod Array ◽  
Surface Modified

A surface-modified TiO2 nanorod array/P(VDF–HFP) dielectric capacitor has an ultrahigh energy density of 17.5 J cm−3 at 509 kV mm−1.

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