Optimal design of high temperature metalized thin-film polymer capacitors: A combined numerical and experimental method

Zhuo Wang, Qi Li, Wei Trinh, Qianli Lu, Heejin Cho, Qing Wang, Lei Chen

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

The objective of this paper is to design and optimize the high temperature metalized thin-film polymer capacitor by a combined computational and experimental method. A finite-element based thermal model is developed to incorporate Joule heating and anisotropic heat conduction arising from anisotropic geometric structures of the capacitor. The anisotropic thermal conductivity and temperature dependent electrical conductivity required by the thermal model are measured from the experiments. The polymer represented by thermally crosslinking benzocyclobutene (BCB) in the presence of boron nitride nanosheets (BNNSs) is selected for high temperature capacitor design based on the results of highest internal temperature (HIT) and the time to achieve thermal equilibrium. The c-BCB/BNNS-based capacitor aiming at the operating temperature of 250 °C is geometrically optimized with respect to its shape and volume. “Safe line” plot is also presented to reveal the influence of the cooling strength on capacitor geometry design.

Original languageEnglish (US)
Pages (from-to)149-157
Number of pages9
JournalJournal of Power Sources
Volume357
DOIs
StatePublished - 2017

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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