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Title: High Dielectric Constant Polycarbonate/Nylon Multilayer Films Capacitors with Self-Healing Capability

Abstract

With the fast development of high-temperature metal oxide semiconductor field effect transistors for power electronics in electric vehicles, current state-of-the-art biaxially oriented polypropylene (BOPP) film capacitors need further improvement because they have a temperature rating of only 85 °C without derating the voltage to maintain a long lifetime. If a high-temperature polymer can replace BOPP without sacrificing the overall dielectric performance and cost, it is possible to remove the current water-cooling system for capacitors and significantly reduce the cost of the power electronic unit. In this work, we demonstrated new polycarbonate (PC)/nylon multilayer films (MLFs), which has a potential for even higher temperature rating because of the higher melting temperature for nylons (e.g., nylon-6). Structural and dielectric studies showed that these PC/nylon MLFs had a similar dielectric performance, such as dielectric constant, dielectric loss, and breakdown strength, as the PC/poly(vinylidene fluoride) PVDF MLFs, which were developed in the past. These PC/nylon MLFs could perform well up to 120 °C, which was limited by the glass transition temperature of PC at 145 °C. Here, more intriguingly, packaged PC/nylon-12 MLF capacitors exhibited a self-healing capability, which had been difficult for packaged high-temperature film capacitors. Because self-healing is such a fundamental requirement formore » polymer film capacitors, our PC/nylon MLFs offer a potential for next-generation high-temperature and high-energy density film capacitors.« less

Authors:
ORCiD logo [1];  [1];  [1];  [1];  [2];  [2];  [3];  [3];  [4];  [4]; ORCiD logo [1]
  1. Case Western Reserve Univ., Cleveland, OH (United States)
  2. PolymerPlus, LLC, Valley View, OH (United States)
  3. SBE, Inc., Barre, VT (United States)
  4. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1513537
Report Number(s):
BNL-211617-2019-JAAM
Journal ID: ISSN 2637-6105
Grant/Contract Number:  
SC0012704
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
ACS Applied Polymer Materials
Additional Journal Information:
Journal Volume: 1; Journal Issue: 4; Journal ID: ISSN 2637-6105
Publisher:
ACS Publications
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; dielectric properties; high-temperature capacitors; multilayer films; n-nylons; polycarbonate; self-healing

Citation Formats

Li, Zhenpeng, Chen, Xinyue, Zhang, Ci, Baer, Eric, Langhe, Deepak, Ponting, Michael, Brubaker, Michael, Hosking, Terry, Li, Ruipeng, Fukuto, Masafumi, and Zhu, Lei. High Dielectric Constant Polycarbonate/Nylon Multilayer Films Capacitors with Self-Healing Capability. United States: N. p., 2019. Web. doi:10.1021/acsapm.9b00099.
Li, Zhenpeng, Chen, Xinyue, Zhang, Ci, Baer, Eric, Langhe, Deepak, Ponting, Michael, Brubaker, Michael, Hosking, Terry, Li, Ruipeng, Fukuto, Masafumi, & Zhu, Lei. High Dielectric Constant Polycarbonate/Nylon Multilayer Films Capacitors with Self-Healing Capability. United States. doi:10.1021/acsapm.9b00099.
Li, Zhenpeng, Chen, Xinyue, Zhang, Ci, Baer, Eric, Langhe, Deepak, Ponting, Michael, Brubaker, Michael, Hosking, Terry, Li, Ruipeng, Fukuto, Masafumi, and Zhu, Lei. Fri . "High Dielectric Constant Polycarbonate/Nylon Multilayer Films Capacitors with Self-Healing Capability". United States. doi:10.1021/acsapm.9b00099. https://www.osti.gov/servlets/purl/1513537.
@article{osti_1513537,
title = {High Dielectric Constant Polycarbonate/Nylon Multilayer Films Capacitors with Self-Healing Capability},
author = {Li, Zhenpeng and Chen, Xinyue and Zhang, Ci and Baer, Eric and Langhe, Deepak and Ponting, Michael and Brubaker, Michael and Hosking, Terry and Li, Ruipeng and Fukuto, Masafumi and Zhu, Lei},
abstractNote = {With the fast development of high-temperature metal oxide semiconductor field effect transistors for power electronics in electric vehicles, current state-of-the-art biaxially oriented polypropylene (BOPP) film capacitors need further improvement because they have a temperature rating of only 85 °C without derating the voltage to maintain a long lifetime. If a high-temperature polymer can replace BOPP without sacrificing the overall dielectric performance and cost, it is possible to remove the current water-cooling system for capacitors and significantly reduce the cost of the power electronic unit. In this work, we demonstrated new polycarbonate (PC)/nylon multilayer films (MLFs), which has a potential for even higher temperature rating because of the higher melting temperature for nylons (e.g., nylon-6). Structural and dielectric studies showed that these PC/nylon MLFs had a similar dielectric performance, such as dielectric constant, dielectric loss, and breakdown strength, as the PC/poly(vinylidene fluoride) PVDF MLFs, which were developed in the past. These PC/nylon MLFs could perform well up to 120 °C, which was limited by the glass transition temperature of PC at 145 °C. Here, more intriguingly, packaged PC/nylon-12 MLF capacitors exhibited a self-healing capability, which had been difficult for packaged high-temperature film capacitors. Because self-healing is such a fundamental requirement for polymer film capacitors, our PC/nylon MLFs offer a potential for next-generation high-temperature and high-energy density film capacitors.},
doi = {10.1021/acsapm.9b00099},
journal = {ACS Applied Polymer Materials},
issn = {2637-6105},
number = 4,
volume = 1,
place = {United States},
year = {2019},
month = {3}
}

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