Thermal characterization of a high-power lithium-ion battery: Potentiometric and calorimetric measurement of entropy changes

Akram Eddahech, Olivier Briat and Jean-Michel Vinassa

Energy, 2013, vol. 61, issue C, 432-439

Abstract: This paper focuses on the thermal behaviour of high-power lithium-ion cells during charge-discharge at several current rates. A series of tests are conducted using an accelerating rate calorimeter to promote an adiabatic environment. Cell heat capacity is identified and the overall heat generated is quantified. Cell entropy is measured, using both potentiometric and calorimetric methods. The part of reversible reaction in the overall thermal behaviour is determined during charge-discharge tests and compared to joule losses. The influence of the state-of-charge variation and the impact of charge-discharge current rate on battery heat generation are highlighted. Experimental results for two lithium-ion technologies are presented and discussed.

Keywords: Lithium-ion battery; Thermal behaviour; Accelerating rate calorimeter; Potentiometric method; Entropy change (search for similar items in EconPapers)
Date: 2013
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Citations: View citations in EconPapers (22)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:61:y:2013:i:c:p:432-439

DOI: 10.1016/j.energy.2013.09.028

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