Significantly improved breakdown strength and energy density of tri-layered polymer nanocomposites with optimized graphene oxide

2020 ◽  
Vol 186 ◽  
pp. 107912 ◽  
Author(s):  
Jie Chen ◽  
Yi Li ◽  
Yifei Wang ◽  
Jiufeng Dong ◽  
Xinwei Xu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Energy Density ◽  
Polymer Nanocomposites ◽  
Breakdown Strength

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

Molecules ◽  
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.

Non-intuitive concomitant enhancement of dielectric permittivity, breakdown strength and energy density in percolative polymer nanocomposites by trace Ag nanodots

2019 ◽  
Vol 7 (25) ◽  
pp. 15198-15206 ◽  
Author(s):  
Xin Huang ◽  
Xin Zhang ◽  
Guang-Kun Ren ◽  
Jianyong Jiang ◽  
Zhenkang Dan ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Dielectric Permittivity ◽  
Polymer Nanocomposites ◽  
Breakdown Strength ◽  
Electrostatic Energy

In situ synthesized Ag nanodots enhances electrostatic energy storage by tuning dipoles.

Excellent energy density of polymer nanocomposites containing BaTiO3@Al2O3 nanofibers induced by moderate interfacial area

2016 ◽  
Vol 4 (34) ◽  
pp. 13259-13264 ◽  
Author(s):  
Zhongbin Pan ◽  
Lingmin Yao ◽  
Jiwei Zhai ◽  
Bo Shen ◽  
Shaohui Liu ◽  
...  
Keyword(s):  
Energy Density ◽  
Polymer Nanocomposites ◽  
Breakdown Strength ◽  
Interfacial Area ◽  
Electric Breakdown

A moderate interfacial area results in significantly enhancement of electric breakdown strength in BaTiO3@Al2O3 nanocomposites. An energy density of ≈12.18 J cm−3 is achieved with a small loading of 5 vol% BaTiO3@Al2O3 nfs.

Enhanced electric breakdown strength and high energy density of barium titanate filled polymer nanocomposites

2013 ◽  
Vol 114 (17) ◽  
pp. 174107 ◽  
Author(s):  
Ke Yu ◽  
Yujuan Niu ◽  
Feng Xiang ◽  
Yongcun Zhou ◽  
Yuanyuan Bai ◽  
...  
Keyword(s):  
Energy Density ◽  
Barium Titanate ◽  
Polymer Nanocomposites ◽  
Breakdown Strength ◽  
High Energy ◽  
Electric Breakdown ◽  
High Energy Density ◽  
Filled Polymer

Solution-processed ferroelectric terpolymer nanocomposites with high breakdown strength and energy density utilizing boron nitride nanosheets

2015 ◽  
Vol 8 (3) ◽  
pp. 922-931 ◽  
Author(s):  
Qi Li ◽  
Guangzu Zhang ◽  
Feihua Liu ◽  
Kuo Han ◽  
Matthew R. Gadinski ◽  
...  
Keyword(s):  
Energy Density ◽  
Boron Nitride ◽  
Polymer Nanocomposites ◽  
Breakdown Strength ◽  
Solution Processed ◽  
Boron Nitride Nanosheets ◽  
Ferroelectric Polymer ◽  
Charge Discharge

Ferroelectric polymer nanocomposites with boron nitride nanosheets exhibit greatly improved energy densities and higher charge–discharge efficiencies.

scholarly journals Designing polymer nanocomposites with high energy density using machine learning

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Zhong-Hui Shen ◽  
Zhi-Wei Bao ◽  
Xiao-Xing Cheng ◽  
Bao-Wen Li ◽  
Han-Xing Liu ◽  
...  
Keyword(s):  
Machine Learning ◽  
Energy Storage ◽  
Energy Density ◽  
Polymer Nanocomposites ◽  
Breakdown Strength ◽  
Phase Field Model ◽  
High Energy ◽  
High Energy Density ◽  
Electrostatic Energy ◽  
Wide Range

AbstractAddressing microstructure-property relations of polymer nanocomposites is vital for designing advanced dielectrics for electrostatic energy storage. Here, we develop an integrated phase-field model to simulate the dielectric response, charge transport, and breakdown process of polymer nanocomposites. Subsequently, based on 6615 high-throughput calculation results, a machine learning strategy is schemed to evaluate the capability of energy storage. We find that parallel perovskite nanosheets prefer to block and then drive charges to migrate along with the interfaces in x-y plane, which could significantly improve the breakdown strength of polymer nanocomposites. To verify our predictions, we fabricate a polymer nanocomposite P(VDF-HFP)/Ca2Nb3O10, whose highest discharged energy density almost doubles to 35.9 J cm−3 compared with the pristine polymer, mainly benefit from the improved breakdown strength of 853 MV m−1. This work opens a horizon to exploit the great potential of 2D perovskite nanosheets for a wide range of applications of flexible dielectrics with the requirement of high voltage endurance.

Enhancement of breakdown strength and energy density in BaTiO3/ferroelectric polymer nanocomposites via processing-induced matrix crystallinity and uniformity

RSC Advances ◽  
2014 ◽  
Vol 4 (38) ◽  
pp. 19668-19673 ◽  
Author(s):  
Yunsang Kim ◽  
O'Neil L. Smith ◽  
Mohanalingam Kathaperumal ◽  
Lucas R. Johnstone ◽  
Ming-Jen Pan ◽  
...  
Keyword(s):  
Energy Density ◽  
Polymer Nanocomposites ◽  
Breakdown Strength ◽  
Ferroelectric Polymer ◽  
Blade Casting

Blade casting of BaTiO3/P(VDF-co-HFP) nanocomposites has improved morphology resulting in enhanced breakdown strength and energy density (7 J cm−3).

scholarly journals Dielectric Constant Enhancement with Low Dielectric Loss Growth in Graphene Oxide/Mica/Polypropylene Composites

2021 ◽  
Vol 5 (2) ◽  
pp. 52
Author(s):  
Chao-Yu Lee ◽  
Chia-Wei Chang
Keyword(s):  
Dielectric Constant ◽  
Graphene Oxide ◽  
Dielectric Loss ◽  
Energy Density ◽  
Breakdown Strength ◽  
Dielectric Material ◽  
Dielectric Strength ◽  
Self Healing ◽  
Organic Thin Film ◽  
Low Dielectric

Polypropylene has been widely used as dielectric material in organic thin-film capacitors due to their high breakdown strength, low dielectric loss and self-healing capability. However, polypropylene’s energy density is relatively low. Increasing the energy density of polypropylene by adding materials with a high dielectric constant is commonly used. Still, it often leads to an increase in dielectric loss, lower dielectric strength and other shortcomings. In this study, a thin 2D platelet of mica/graphene oxide composite material was made from exfoliated mica as a substrate and attached by graphene oxide. The mica/graphene oxide platelets were added to polypropylene to make a plastic dielectric composite. The non-conductive flat inorganic additive can increase the dielectric constant and dielectric strength of the composite without increasing dielectric loss. The tiny mica/graphene oxide platelets can significantly improve the dielectric properties of polypropylene. The results show that by adding a small amount (less than 1 wt%) mica/graphene oxide, the relative dielectric constant of polypropylene can increase to more than 3.7 without causing an increase in dielectric loss and the dielectric strength of polypropylene can also enhance.

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