Enhanced Energy Storage Performance with High-Temperature Stability of Polyetherimide Nanocomposites

Lulu Ren, He Li, Ding Ai, Wenyue Zheng, Lijun Yang, Xuetong Zhao, Ruijin Liao, Qing Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Polyetherimide (PEI) nanocomposite doped with hafnium oxide (HfO) nanoparticles have been prepared by conventional solution cast method to investigate the effect of nanofillers with moderate dielectric constant on dielectric and capacitive properties of the polymer nanocomposite. The microstructure characteristic, insulation properties and energy storage performance of PEI/HfO nanocomposites were studied by scanning electronic microscopy (SEM), high-field leakage current and displacement-electric field (D-E) loops. It was found that incorporating HfO not only enhances dielectric constant and resistivity of the nanocomposites but also improves capacitive performance such as increased electric displacement, discharged energy density and charge-discharge efficiency. The 3 vol% HfO-filled PEI nanocomposite delivers an energy density of 2.20 J/cm3 at 150 °C, which manifests the feasibility of improving high-temperature energy storage properties of polymer nanocomposites through incorporation of the nanofillers with medium dielectric constants.

Original languageEnglish (US)
Title of host publication7th IEEE International Conference on High Voltage Engineering and Application, ICHVE 2020 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728155111
DOIs
StatePublished - Sep 6 2020
Event7th IEEE International Conference on High Voltage Engineering and Application, ICHVE 2020 - Beijing, China
Duration: Sep 6 2020Sep 10 2020

Publication series

Name7th IEEE International Conference on High Voltage Engineering and Application, ICHVE 2020 - Proceedings

Conference

Conference7th IEEE International Conference on High Voltage Engineering and Application, ICHVE 2020
CountryChina
CityBeijing
Period9/6/209/10/20

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Mechanics of Materials
  • Safety, Risk, Reliability and Quality
  • Electronic, Optical and Magnetic Materials

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