MWCNTs-TiO2 core-shell nanoassemblies for fabrication of poly(vinylidene fluoride) based composites with high breakdown strength and discharged energy density

2016 ◽  
Vol 23 (4) ◽  
Author(s):  
Lu Yang ◽  
Jinhao Qiu ◽  
Hongli Ji ◽  
Kongjun Zhu ◽  
Jing Wang ◽  
...  
Keyword(s):  
Energy Density ◽  
Vinylidene Fluoride ◽  
Breakdown Strength ◽  
Core Shell ◽  
Poly Vinylidene Fluoride ◽  
Discharged Energy Density

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 electric breakdown strength and energy density in vinylidene fluoride oligomer/poly(vinylidene fluoride) blend thin films

2011 ◽  
Vol 99 (14) ◽  
pp. 142901 ◽  
Author(s):  
Mojtaba Rahimabady ◽  
Shuting Chen ◽  
Kui Yao ◽  
Francis Eng Hock Tay ◽  
Li Lu
Keyword(s):  
Thin Films ◽  
Energy Density ◽  
Vinylidene Fluoride ◽  
Breakdown Strength ◽  
Electric Breakdown ◽  
Poly Vinylidene Fluoride

scholarly journals Enhanced energy density of PVDF-based nanocomposites via a core–shell strategy

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
JingJing Xu ◽  
Chao Fu ◽  
Huiying Chu ◽  
Xianyou Wu ◽  
Zhongyang Tan ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Vinylidene Fluoride ◽  
Breakdown Strength ◽  
Electric Displacement ◽  
High Energy ◽  
High Energy Density ◽  
Core Shell ◽  
Discharge Energy ◽  
Discharge Energy Density

Abstract In recent years, high energy density polymer capacitors have attracted a lot of scientific interest due to their potential applications in advanced power systems and electronic devices. Here, core–shell structured TiO2@SrTiO3@polydamine nanowires (TiO2@SrTiO3@PDA NWs) were synthesized via a combination of surface conversion reaction and in-situ polymerization method, and then incorporated into the poly(vinylidene fluoride) (PVDF) matrix. Our results showed that a small amount of TiO2@SrTiO3@PDA NWs can simultaneously enhance the breakdown strength and electric displacement of nanocomposite (NC) films, resulting in improved energy storage capability. The 5 wt% TiO2@SrTiO3@PDA NWs/PVDF NC demonstrates 1.72 times higher maximum discharge energy density compared to pristine PVDF (10.34 J/cm3 at 198 MV/m vs. 6.01 J/cm3 at 170 MV/m). In addition, the NC with 5 wt% TiO2@SrTiO3@PDA NWs also demonstrates an excellent charge–discharge efficiency (69% at 198 MV/m). Enhanced energy storage performance is due to hierarchical interfacial polarization among their multiple interfaces, the large aspect ratio as well as surface modification of the TiO2@SrTiO3 NWs. The results of this study provide guidelines and a foundation for the preparation of the polymer NCs with an outstanding discharge energy density.

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