Home
Resources
Publications
Ultrahigh β-phase Content Poly(vinylidene Fluoride) With Relaxor-Like Ferroelectricity for High Energy Density Capacitors

Ultrahigh β-phase Content Poly(vinylidene Fluoride) With Relaxor-Like Ferroelectricity for High Energy Density Capacitors

Nan Meng, Xintong Ren, Giovanni Santagiuliana, Leonardo Ventura, Han Zhang, Jiyue Wu, Haixue Yan, Michael J Reece, Emiliano Bilotti

Nat Commun. 2019 Oct 18;10(1):4535.

PMID: 31628311

Abstract:

Poly(vinylidene fluoride)-based dielectric materials are prospective candidates for high power density electric storage applications because of their ferroelectric nature, high dielectric breakdown strength and superior processability. However, obtaining a polar phase with relaxor-like behavior in poly(vinylidene fluoride), as required for high energy storage density, is a major challenge. To date, this has been achieved using complex and expensive synthesis of copolymers and terpolymers or via irradiation with high-energy electron-beam or γ-ray radiations. Herein, a facile process of pressing-and-folding is proposed to produce β-poly(vinylidene fluoride) (β-phase content: ~98%) with relaxor-like behavior observed in poly(vinylidene fluoride) with high molecular weight > 534 kg mol-1, without the need of any hazardous gases, solvents, electrical or chemical treatments. An ultra-high energy density (35 J cm-3) with a high efficiency (74%) is achieved in a pressed-and-folded poly(vinylidene fluoride) (670-700 kg mol-1), which is higher than that of other reported polymer-based dielectric capacitors to the best of our knowledge.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP24937799	Poly(vinylidene fluoride)		24937-79-9	Price

As a specialist in analytical chemical Products, Alfa Chemistry offers consumers a wealth of raw materials and a full range of technologies and services.

QUICK LINKS

HEADQUARTERS

Tel:

Fax:

Email: