Heat Loss Measurement of Lithium Titanate Oxide Batteries under Fast Charging Conditions by Employing Isothermal Calorimeter

Seyed Saeed Madani, Erik Schaltz, Søren Knudsen Kær

Research output: Contribution to journalJournal articleResearchpeer-review

23 Citations (Scopus)
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Abstract

To understand better the thermal behaviour of lithium-ion batteries under different working conditions, various experiments were applied to a 13 Ah Altairnano lithium titanate oxide battery cell by means of isothermal battery calorimeter. Several parameters were measured such as the battery surface temperature, voltage, current, power, heat flux, maximum temperature and power area. In addition, the efficiency was calculated. Isothermal battery calorimeter was selected as the most appropriate method for heat loss measurements. Temperatures on the surface of the battery were measured by employing four contact thermocouples (type K). In order to determine the heat loss of the battery, constant current charge and discharge pulses at sixteen different C-rates were applied to the battery. It was seen that the charge and discharge C-rates has a considerable influence on the thermal behaviours of lithium-ion batteries. In this research paper, the C-rate was linked to the peak temperature, efficiency and heat loss and it was concluded that they are linear dependent on the C-rate. In addition, the outcomes of this investigation can be used for battery thermal modelling and design of thermal management systems.
Original languageEnglish
Article number59
JournalBatteries
Volume4
Issue number4
Pages (from-to)1-15
Number of pages15
ISSN2313-0105
DOIs
Publication statusPublished - Nov 2018

Keywords

  • lithium-ion batteries
  • heat loss
  • Battery efficiency

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