Enhancement of dielectric properties and energy storage density in poly(vinylidene fluoride-co-hexafluoropropylene) by relaxor ferroelectric ceramics

RSC Advances ◽  
2015 ◽  
Vol 5 (84) ◽  
pp. 68515-68522 ◽  
Author(s):  
Hang Luo ◽  
Chao Chen ◽  
Kechao Zhou ◽  
Xuefan Zhou ◽  
Zhong Wu ◽  
...  
Keyword(s):  
Energy Storage ◽  
Dielectric Properties ◽  
Vinylidene Fluoride ◽  
Ferroelectric Ceramic ◽  
Relaxor Ferroelectric ◽  
Ferroelectric Ceramics ◽  
Energy Storage Density ◽  
Storage Density ◽  
Poly Vinylidene Fluoride ◽  
Relaxor Ferroelectric Ceramics

The dielectric properties and energy storage density of poly(vinylidene fluoride-co-hexafluoropropylene) were enhanced by the surface-functionalized relaxor ferroelectric ceramic Pb(Mg1/3Nb2/3)O3–PbTiO3.

Large energy-storage density and positive electrocaloric effect in xBiFeO3–(1 − x)BaTiO3 relaxor ferroelectric ceramics

2022 ◽  
Author(s):  
Hui Tang ◽  
Xiang Niu ◽  
Peng-Fei Zhao ◽  
Xin-Gui Tang ◽  
Xiao-Dong Jian ◽  
...  
Keyword(s):  
Energy Storage ◽  
Relaxor Ferroelectric ◽  
Ferroelectric Ceramics ◽  
Large Energy ◽  
Energy Storage Density ◽  
Electrocaloric Effect ◽  
Storage Density ◽  
Relaxor Ferroelectric Ceramics

Large energy storage density and big electrocaloric strength in the BiFeO3–BaTiO3 system.

scholarly journals Electron-Beam Irradiation for Boosting Storage Energy Density of Tuned Poly(vinylidene fluoride-hexafluoropropylene)/Graphene Nanoplatelet Polymer Composites

Crystals ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 633
Author(s):  
Ardian Agus Permana ◽  
Somyot Chirasatitsin ◽  
Chatchai Putson
Keyword(s):  
Electron Beam ◽  
Energy Storage ◽  
Dielectric Properties ◽  
Vinylidene Fluoride ◽  
Graphene Nanoplatelets ◽  
Energy Storage Materials ◽  
Energy Storage Density ◽  
Storage Density ◽  
Storage Materials ◽  
Poly Vinylidene Fluoride

In current, the energy storage materials based on electrets and ferroelectric polymers are urgently demanded for electric power supply and renewable energy applications. The high energy storage density can be enhanced by conducting or inorganic fillers to ferroelectric polymer matrix. However, agglomeration, phase separation of fillers, interfacial phase regions and crystallinity of matrix remain the main factors for the improvement of energy storage density in those composites. Poly(vinylidene fluoride-hexafluoropropylene) was modified with graphene nanoplatelets for enhanced the dielectric properties and energy storage density, which combines the irradiated by electron beam. Tuning effect of the crystalline regions and polar phases with graphene nanoplatelets and electron irradiation on its surface, structure, electrical and energy storage properties were observed. The film homogeneity was increased by reducing the pores, along with the improvement of surface roughness and hydrophobicity, which related with the dielectric properties and energy storage density. The β-phase fraction and crystallinity improvement significantly affect electrical properties by improving polarization and dielectric constant. As a core, electron beam dramatically reduce the crystals size by two times. Hence, energy storage density of composites was enhanced, while energy loss was reduced under operating conditions. Results on the improvement of energy efficiency were from 68.11 to 74.66% for neat poly(vinylidene fluoride-hexafluoropropylene) (P(VDF-HFP)), much higher than previously reported of 58%, and doubled for P(VDF-HFP)/GNPs composites which will be discussed and evaluated for the practical energy storage materials.

Significantly tailored energy-storage performances in Bi0.5Na0.5TiO3-SrTiO3 based relaxor ferroelectric ceramics by introducing bismuth layer-structured relaxor BaBi2Nb2O9 for capacitor application

2021 ◽  
Author(s):  
Liang Zheng ◽  
Peicong Sun ◽  
Wangfeng Bai ◽  
Lili Li ◽  
Fei Wen ◽  
...  
Keyword(s):  
Energy Storage ◽  
Power Density ◽  
Relaxor Ferroelectric ◽  
Lead Free ◽  
Ferroelectric Ceramics ◽  
Energy Storage Density ◽  
Storage Density ◽  
Relaxor Ferroelectric Ceramics

Dielectric capacitor materials with remarkable energy storage density, remarkable power density, and outstanding charging-discharging performance have always been the focus of researches. Lead-free Bi0.5Na0.5TiO3 -based (BNT) relaxors have been deemed...

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