Interface modulation in multi-layered BaTiO3 nanofibers/PVDF using the PVP linker layer as an adhesive for high energy density capacitor applications

In this work, we have studied the role of a linker across the interface in a multi-layered polymer nanocomposite-based capacitor using barium titanate (BT) nanofibers (NFs) as nanofillers and polyvinylidene fluoride (PVDF) as the polymer matrix.

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Unveiling the Role of Graphene Oxide as an Interface Interlocking Ingredient in Polyvinylidene Fluoride‐Based Multilayered Thin‐Film Capacitors for High Energy Density and Ultrafast Discharge Applications

Energy Technology ◽

10.1002/ente.202000905 ◽

2021 ◽

pp. 2000905

Author(s):

Prateek ◽

Ritamay Bhunia ◽

Arnab Sarkar ◽

Sandeep Anand ◽

Ashish Garg ◽

...

Keyword(s):

Thin Film ◽

Graphene Oxide ◽

Energy Density ◽

Polyvinylidene Fluoride ◽

High Energy ◽

High Energy Density ◽

Multilayered Thin Film ◽

Thin Film Capacitors

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Development of Lead-Free Nanowire Composites for Energy Storage Applications

ISRN Nanomaterials ◽

10.5402/2012/151748 ◽

2012 ◽

Vol 2012 ◽

pp. 1-8 ◽

Cited By ~ 7

Author(s):

Miguel Mendoza ◽

Md Ashiqur Rahaman Khan ◽

Mohammad Arif Ishtiaque Shuvo ◽

Alberto Guerrero ◽

Yirong Lin

Keyword(s):

Energy Storage ◽

Energy Density ◽

Polymer Matrix ◽

Polyvinylidene Fluoride ◽

Breakdown Strength ◽

Environmental Safety ◽

High Energy ◽

High Energy Density ◽

Lead Free ◽

High Dielectric

There is an increasing demand to improve the energy density of dielectric capacitors for satisfying the next generation material systems. One effective approach is to embed high dielectric constant inclusions such as lead zirconia titanate in polymer matrix. However, with the increasing concerns on environmental safety and biocompatibility, the need to expel lead (Pb) from modern electronics has been receiving more attention. Using high aspect ratio dielectric inclusions such as nanowires could lead to further enhancement of energy density. Therefore, this paper focuses on the development of a lead-free nanowire reinforced polymer matrix capacitor for energy storage application. Lead-free sodium niobate nanowires (NaNbO3) were synthesized using hydrothermal method, followed by mixing them with polyvinylidene fluoride (PVDF) matrix using a solution-casting method for nanocomposites fabrication. Capacitance and breakdown strength of the samples were measured to determine the energy density. The energy density of NaNbO3/PVDF composites was also compared with that of lead-containing (PbTiO3/PVDF) nanocomposites and previously developed Pb()O3/PVDF composites to show the feasibility of replacing lead-containing materials. The energy density of NaNbO3/PVDF capacitor is comparable to those of lead-containing ones, indicating the possibility of expelling lead from high-energy density dielectric capacitors.

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Recent Advances in the Synthesis of Polymer-Grafted Low-K and High-K Nanoparticles for Dielectric and Electronic Applications

Molecules ◽

10.3390/molecules26102942 ◽

2021 ◽

Vol 26 (10) ◽

pp. 2942

Author(s):

Bhausaheb V. Tawade ◽

Ikeoluwa E. Apata ◽

Nihar Pradhan ◽

Alamgir Karim ◽

Dharmaraj Raghavan

Keyword(s):

Energy Density ◽

Polymer Nanocomposites ◽

High Performance ◽

Breakdown Strength ◽

Polymer Nanocomposite ◽

High Energy ◽

Polymer Chains ◽

High Energy Density ◽

Grafted Nanoparticles ◽

Grafting From

The synthesis of polymer-grafted nanoparticles (PGNPs) or hairy nanoparticles (HNPs) by tethering of polymer chains to the surface of nanoparticles is an important technique to obtain nanostructured hybrid materials that have been widely used in the formulation of advanced polymer nanocomposites. Ceramic-based polymer nanocomposites integrate key attributes of polymer and ceramic nanomaterial to improve the dielectric properties such as breakdown strength, energy density and dielectric loss. This review describes the ”grafting from” and ”grafting to” approaches commonly adopted to graft polymer chains on NPs pertaining to nano-dielectrics. The article also covers various surface initiated controlled radical polymerization techniques, along with templated approaches for grafting of polymer chains onto SiO2, TiO2, BaTiO3, and Al2O3 nanomaterials. As a look towards applications, an outlook on high-performance polymer nanocomposite capacitors for the design of high energy density pulsed power thin-film capacitors is also presented.

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