Investigation of the thermal properties of a Li-ion pouch-cell by electrothermal impedance spectroscopy

Jan Philipp Schmidt, Daniel Manka, Dino Klotz, Ellen Ivers-Tiffée

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)

Abstract

Electrothermal impedance spectroscopy (ETIS), is introduced as a new measurement method and thermal parameters derived from a pouch-type lithium-ion cell are presented. ETIS is a valuable tool for (i) the determination of the thermal impedance and (ii) the validation of thermal models. The excitation signal applied to the cell during measurement does not cause a change in entropy, thus facilitating the parameter identification of a thermal model for heat conduction and thermal capacity. ETIS can be applied to measurements in time domain and in frequency domain. Both approaches are presented and a combination further improves measurement time and accuracy.

Original languageEnglish
Pages (from-to)8140-8146
Number of pages7
JournalJournal of Power Sources
Volume196
Issue number19
DOIs
Publication statusPublished - Oct 1 2011
Externally publishedYes

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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