skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Reducing dielectric loss and enhancing electrical insulation for multilayer polymer films by nanoconfined ion transport under high poling electric fields

Journal Article · · Journal of Materials Chemistry C
DOI:https://doi.org/10.1039/D0TC00522C· OSTI ID:1635475

High temperature polar polymers have demonstrated potential for good thermal stability and high dielectric constant at the same time. However, polarization of contaminated impurity ions in polar polymers, even at the ppm level, can significantly increase the dielectric loss at high temperature and low frequencies. One effective strategy to mitigate this problem is to multilayer them with a high temperature nonpolar dielectric polymer to confine impurity ion transport at the nanometer scale. In this study, confined ion transport in high temperature polycarbonate (HTPC)/poly(vinylidene fluoride) (PVDF) multilayer films under high AC electric fields was studied using a direct analytical simulation method. Different from the ion transport under low fields, the ion diffusion model failed to describe the ion transport under high electric fields. An exponential ion distribution profile, which was observed for the DC poling situation, was employed to implement the direct analytical simulation. Confined impurity ion transport under high AC fields was quantitatively understood. As the AC field increased, the mobile ion concentration decreased whereas the diffusion coefficient increased. The decrease of mobile ion concentration was explained by the blockage of impurity ions by the HTPC layers. This knowledge helped in the determination of optimal conditions to polarize impurity ions from the PVDF layers into the HTPC layers. After cooling below the glass transition temperature of HTPC, polarized impurity ions were locked inside the HTPC layers. As a result, increased discharge efficiency and enhanced electrical insulation (i.e., increased dielectric breakdown strength) were achieved for the polarized multilayer films.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012704
OSTI ID:
1635475
Alternate ID(s):
OSTI ID: 1608380
Report Number(s):
BNL-216089-2020-JAAM; JMCCCX
Journal Information:
Journal of Materials Chemistry C, Vol. 8, Issue 18; ISSN 2050-7526
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 18 works
Citation information provided by
Web of Science

References (32)

Capacitors journal January 1998
Capacitive components for power electronics journal June 2001
Conducting-polymer-based supercapacitor devices and electrodes journal January 2011
Exploring Strategies for High Dielectric Constant and Low Loss Polymer Dielectrics journal October 2014
Performance metrics for a modern BOPP capacitor film journal August 2019
High-Temperature Capacitor Polymer Films journal October 2014
High-Temperature Dielectric Materials for Electrical Energy Storage journal July 2018
Aromatic Polythiourea Dielectrics with Ultrahigh Breakdown Field Strength, Low Dielectric Loss, and High Electric Energy Density journal January 2013
Strongly Dipolar Polythiourea and Polyurea Dielectrics with High Electrical Breakdown, Low Loss, and High Electrical Energy Density journal September 2014
Generating high dielectric constant blends from lower dielectric constant dipolar polymers using nanostructure engineering journal February 2017
Optimizing nanostructure to achieve high dielectric response with low loss in strongly dipolar polymers journal September 2015
Layer confinement effect on charge migration in polycarbonate/poly(vinylidene fluorid- co -hexafluoropropylene) multilayered films journal June 2012
Crystal Orientation and Temperature Effects on Double Hysteresis Loop Behavior in a Poly(vinylidene fluoride- co -trifluoroethylene- co -chlorotrifluoroethylene)- graft -Polystyrene Graft Copolymer journal December 2013
Dielectric response of structured multilayered polymer films fabricated by forced assembly journal March 2008
Enhanced breakdown strength of multilayered films fabricated by forced assembly microlayer coextrusion journal August 2009
Reduction of Dielectric Hysteresis in Multilayered Films via Nanoconfinement journal February 2012
50th Anniversary Perspective : Dielectric Phenomena in Polymers and Multilayered Dielectric Films journal February 2017
Reducing dielectric loss by nanoconfined impurity ion transport in multilayer films under low electric fields journal June 2020
Reduction of Ionic Conduction Loss in Multilayer Dielectric Films by Immobilizing Impurity Ions in High Glass Transition Temperature Polymer Layers journal January 2018
High Dielectric Constant Polycarbonate/Nylon Multilayer Films Capacitors with Self-Healing Capability journal February 2019
Flat-On Secondary Crystals as Effective Blocks To Reduce Ionic Conduction Loss in Polysulfone/Poly(vinylidene fluoride) Multilayer Dielectric Films journal July 2018
Semicrystalline Structure–Dielectric Property Relationship and Electrical Conduction in a Biaxially Oriented Poly(vinylidene fluoride) Film under High Electric Fields and High Temperatures journal July 2015
Polymer multilayer films for high temperature capacitor application journal January 2019
Nature of Ferroelectric Behavior in Main-Chain Dipolar Glass Nylons: Cooperative Segmental Motion Induced by High Poling Electric Field journal February 2018
The Dipole Moments of Diphenyl Sulfide, Sulfoxide, Sulfone, and Their Derivatives journal July 1969
Dipole moment of poly(carbonates) with chlorophenyl or dichlorophenyl side groups journal June 1992
Dipole moment of poly(thiocarbonates) with chlorophenyl or dichlorophenyl side groups journal September 1991
Physical aging of polymers journal January 1995
A complex plane representation of dielectric and mechanical relaxation processes in some polymers journal January 1967
Effects of Electric Double Layer and Space Charge Polarization by Plural Kinds of Ions on Complex Dielectric Constant of Liquid Crystal Materials journal March 1999
Dielectric process of space-charge polarization for an electrolytic cell with blocking electrodes journal August 2008
Verifying the Drude response journal July 2006