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Sievers, Martin [Author]; Sievers, Uwe [Author]; Mao, Samuel S. [Author] ; Technische Universität Hamburg-Harburg, Technische Universität Hamburg-Harburg, Technische Universität Hamburg-Harburg, Technische Universität Hamburg-Harburg Institut für Thermofluiddynamik, Technische Universität Hamburg-Harburg Institut für Thermofluiddynamik, Technische Universität Hamburg-Harburg Institut für Thermofluiddynamik

Thermal modelling of new Li-ion cell design modifications

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  • Media type: E-Article
  • Title: Thermal modelling of new Li-ion cell design modifications
  • Contributor: Sievers, Martin [Author]; Sievers, Uwe [Author]; Mao, Samuel S. [Author]
  • Corporation: Technische Universität Hamburg-Harburg ; Technische Universität Hamburg-Harburg, Institut für Thermofluiddynamik
  • Published: Dezember 2010
  • Published in: Forschung im Ingenieurwesen ; 74(2010), 4, Seite 215-231
  • Language: English
  • DOI: 10.1007%2Fs10010-010-0127-y; 10.15480/882.1864
  • Identifier:
  • Keywords: heat transfer ; free convection ; force convection ; negative electrode ; cell design
  • Origination:
  • Footnote:
  • Description: The effects of material and design modifications on the temperature distribution of Li-ion cells are simulated numerically. A two-dimensional anisotropic cylindrical coordinate model with linear triangular finite elements is used to simulate the steady-state temperature distribution within the cell. The cell's material and geometry are changed. New cell materials are investigated for thermal performance: a negative electrode of variously-oriented carbon nanotubes, as well as separators made of Separion, of Al 2O3 containing Cr particles or of BeO containing Be and Si particles. The cell's diameter and length are varied. A new cell design with an internal cooling tube is proposed. The effect of cooling tube diameter upon cell temperature and the energy efficiency of cooling are investigated. This simple design change significantly improves the temperature distribution at marginal cost.
  • Access State: Open Access