Thermal Behaviour Investigation of a Large and High Power Lithium Iron Phosphate Cylindrical Cell
| Autor: | Noshin Omar, Joeri Van Mierlo, Peter Van Den Bossche, Ahmadou Samba, Odile Capron |
|---|---|
| Přispěvatelé: | Electrical Engineering and Power Electronics, Faculty of Engineering, Electromobility research centre, Industrial Sciences and Technology, Engineering Technology |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Battery (electricity)
Control and Optimization Materials science electrochemical-thermal Renewable Energy Sustainability and the Environment lcsh:T Lithium iron phosphate Analytical chemistry Energy Engineering and Power Technology lcsh:Technology Power (physics) thermal battery cell chemistry.chemical_compound Temperature gradient Thermal conductivity chemistry Thermal Pouch cell Electrical and Electronic Engineering Composite material lithium iron phosphate (LFP) Engineering (miscellaneous) Ohmic contact Energy (miscellaneous) |
| Zdroj: | Energies, Vol 8, Iss 9, Pp 10017-10042 (2015) Energies Volume 8 Issue 9 Pages 10017-10042 |
| ISSN: | 1996-1073 |
| Popis: | This paper investigates the thermal behaviour of a large lithium iron phosphate (LFP) battery cell based on its electrochemical-thermal modelling for the predictions of its temperature evolution and distribution during both charge and discharge processes. The electrochemical-thermal modelling of the cell is performed for two cell geometry approaches: homogeneous (the internal region is considered as a single region) and discrete (the internal region is split into smaller regions for each layer inside the cell). The experimental measurements and the predictions of the cell surface temperature achieved with the simulations for both approaches are in good agreement with 1.5 °C maximum root mean square error. From the results, the maximum cell surface temperature and temperature gradient between the internal and the surface regions are around 31.3 °C and 1.6 °C. The temperature gradient in the radial direction is observed to be greater about 1.1 °C compared to the longitudinal direction, which is caused by the lower thermal conductivity of the cell in the radial compared to the longitudinal direction. During its discharge, the reversible, the ohmic and the reaction heat generations inside the cell reach up to 2 W, 7 W and 17 W respectively. From the comparison of the two modelling approaches, this paper establishes that the homogeneous modelling of the cell internal region is suitable for the study of a single cylindrical cell and is appropriate for the two-dimensional thermal behaviour investigation of a battery module made of multiple cells. |
| Databáze: | OpenAIRE |
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