A phase change material with enhanced thermal conductivity and secondary heat dissipation capability by introducing a binary thermal conductive skeleton for battery thermal management

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

4 Scopus Citations
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Author(s)

  • Jieshan He
  • Xiaoqing Yang
  • Guoqing Zhang

Detail(s)

Original languageEnglish
Pages (from-to)984-991
Journal / PublicationApplied Thermal Engineering
Volume148
Early online date29 Nov 2018
Publication statusPublished - 5 Feb 2019

Abstract

In order to enhance the thermal conductivity and secondary heat dissipation capability of the phase change material (PCM) in battery thermal management (BTM) applications, a new kind of composite PCM (CPCM) is successfully prepared by constructing a binary thermal conductive skeleton of expanded graphite (EG)/copper foam (CF). The EG with porous structure can adsorb the PCM of paraffin and act as a micro-thermal-conductive framework to transfer the heat to the adjacent CF skeleton. The CF acts as a macro-skeleton to transfer the heat throughout the CPCM plate and enhance the heat transfer coefficient of the interface between the CPCM plate and air. In consequence, the obtained CPCM-based battery pack with EG/CF (CPCM-EG/CF) delivers much better cooling and temperature-uniformed performances than those without EG/CF or CF, especially under a secondary heat dissipation system of forced air convection. For example, the CPCM-EG/CF pack shows stable and lowest maximum temperature and temperature difference of 48.0 and 3.9 °C during the cycling charge-discharge tests under forced air flow, respectively.

Research Area(s)

  • Battery thermal management, Copper foam, Expanded graphite, Heat dissipation, Phase change materials, Thermal conductivity

Citation Format(s)

A phase change material with enhanced thermal conductivity and secondary heat dissipation capability by introducing a binary thermal conductive skeleton for battery thermal management. / He, Jieshan; Yang, Xiaoqing; Zhang, Guoqing.

In: Applied Thermal Engineering, Vol. 148, 05.02.2019, p. 984-991.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review